Fix for retina displays: could not select buildmodes.

Fixed saving modifier settings on closing the gui (don't override onClose() but removed()).

.gitignore

@@ -1,43 +1,25 @@
-## Based on GitHub's Eclipse .gitignore
-
-classes/
-run/
-.gradle/
-build/
-gradle-app.setting
-
-## IntelliJ IDEA
-
-.idea/
-*.iml
-*.iws
-*.ipr
-
-## Eclipse
-
-eclipse/
-*.pydevproject
-.project
-.metadata
-bin/
-tmp/
-*.tmp
-*.bak
-*.swp
-*~.nib
-local.properties
-.classpath
-.settings/
-.loadpath
-
-# External tool builders
-.externalToolBuilders/
-
-# Locally stored "Eclipse launch configurations"
+# eclipse
+bin
 *.launch
+.settings
+.metadata
+.classpath
+.project
 
-# CDT-specific
-.cproject
+# idea
+out
+*.ipr
+*.iws
+*.iml
+.idea
 
-# PDT-specific
-.buildpath
+# gradle
+build
+.gradle
+
+# other
+eclipse
+run
+
+# Files from Forge MDK
+forge*changelog.txt

README.md

@@ -0,0 +1 @@
+The 1.12 repository can be found here: https://bitbucket.org/Requios/effortless-building/src/master/

README.txt

@@ -0,0 +1,53 @@
+-------------------------------------------
+Source installation information for modders
+-------------------------------------------
+This code follows the Minecraft Forge installation methodology. It will apply
+some small patches to the vanilla MCP source code, giving you and it access 
+to some of the data and functions you need to build a successful mod.
+
+Note also that the patches are built against "unrenamed" MCP source code (aka
+srgnames) - this means that you will not be able to read them directly against
+normal code.
+
+Source pack installation information:
+
+Standalone source installation
+==============================
+
+See the Forge Documentation online for more detailed instructions:
+http://mcforge.readthedocs.io/en/latest/gettingstarted/
+
+Step 1: Open your command-line and browse to the folder where you extracted the zip file.
+
+Step 2: You're left with a choice.
+If you prefer to use Eclipse:
+1. Run the following command: "gradlew genEclipseRuns" (./gradlew genEclipseRuns if you are on Mac/Linux)
+2. Open Eclipse, Import > Existing Gradle Project > Select Folder 
+   or run "gradlew eclipse" to generate the project.
+(Current Issue)
+4. Open Project > Run/Debug Settings > Edit runClient and runServer > Environment
+5. Edit MOD_CLASSES to show [modid]%%[Path]; 2 times rather then the generated 4.
+
+If you prefer to use IntelliJ:
+1. Open IDEA, and import project.
+2. Select your build.gradle file and have it import.
+3. Run the following command: "gradlew genIntellijRuns" (./gradlew genIntellijRuns if you are on Mac/Linux)
+4. Refresh the Gradle Project in IDEA if required.
+
+If at any point you are missing libraries in your IDE, or you've run into problems you can run "gradlew --refresh-dependencies" to refresh the local cache. "gradlew clean" to reset everything {this does not affect your code} and then start the processs again.
+
+Should it still not work, 
+Refer to #ForgeGradle on EsperNet for more information about the gradle environment.
+or the Forge Project Discord discord.gg/UvedJ9m
+
+Forge source installation
+=========================
+MinecraftForge ships with this code and installs it as part of the forge
+installation process, no further action is required on your part.
+
+LexManos' Install Video
+=======================
+https://www.youtube.com/watch?v=8VEdtQLuLO0&feature=youtu.be
+
+For more details update more often refer to the Forge Forums:
+http://www.minecraftforge.net/forum/index.php/topic,14048.0.html

build.gradle

@@ -1,77 +1,149 @@
 buildscript {
     repositories {
+        maven { url = 'https://files.minecraftforge.net/maven' }
         jcenter()
-        maven { url = "http://files.minecraftforge.net/maven" }
+        mavenCentral()
     }
     dependencies {
-        classpath 'net.minecraftforge.gradle:ForgeGradle:2.3-SNAPSHOT'
+        classpath group: 'net.minecraftforge.gradle', name: 'ForgeGradle', version: '3.+', changing: true
     }
 }
-apply plugin: 'net.minecraftforge.gradle.forge'
-//Only edit below this line, the above code adds and enables the necessary things for Forge to be setup.
+apply plugin: 'net.minecraftforge.gradle'
+// Only edit below this line, the above code adds and enables the necessary things for Forge to be setup.
+apply plugin: 'eclipse'
+apply plugin: 'maven-publish'
 
+version = '1.14.4-2.21'
+group = 'nl.requios.effortlessbuilding' // http://maven.apache.org/guides/mini/guide-naming-conventions.html
+archivesBaseName = 'effortlessbuilding'
 
-version = "0.1.3"
-group = "nl.requios.effortlessbuilding" // http://maven.apache.org/guides/mini/guide-naming-conventions.html
-archivesBaseName = "effortlessbuilding"
-
-sourceCompatibility = targetCompatibility = '1.8' // Need this here so eclipse task generates correctly.
-compileJava {
-    sourceCompatibility = targetCompatibility = '1.8'
-}
+sourceCompatibility = targetCompatibility = compileJava.sourceCompatibility = compileJava.targetCompatibility = '1.8' // Need this here so eclipse task generates correctly.
 
 minecraft {
-    version = "1.12.2-14.23.4.2705"
-    runDir = "run"
-    
-    // the mappings can be changed at any time, and must be in the following format.
-    // snapshot_YYYYMMDD   snapshot are built nightly.
-    // stable_#            stables are built at the discretion of the MCP team.
+    // The mappings can be changed at any time, and must be in the following format.
+    // snapshot_YYYYMMDD   Snapshot are built nightly.
+    // stable_#            Stables are built at the discretion of the MCP team.
     // Use non-default mappings at your own risk. they may not always work.
-    // simply re-run your setup task after changing the mappings to update your workspace.
-    mappings = "snapshot_20171003"
+    // Simply re-run your setup task after changing the mappings to update your workspace.
+    mappings channel: 'snapshot', version: '20190719-1.14.3'
     // makeObfSourceJar = false // an Srg named sources jar is made by default. uncomment this to disable.
+    
+    // accessTransformer = file('src/main/resources/META-INF/accesstransformer.cfg')
+
+    // Default run configurations.
+    // These can be tweaked, removed, or duplicated as needed.
+    runs {
+        client {
+            workingDirectory project.file('run')
+
+            // Recommended logging data for a userdev environment (SCAN,REGISTRIES,REGISTRYDUMP)
+            property 'forge.logging.markers', 'REGISTRIES'
+
+            // Recommended logging level for the console
+            property 'forge.logging.console.level', 'debug'
+
+            mods {
+                effortlessbuilding {
+                    source sourceSets.main
+                }
+            }
+        }
+
+        server {
+            workingDirectory project.file('run')
+
+            // Recommended logging data for a userdev environment (SCAN,REGISTRIES,REGISTRYDUMP)
+            property 'forge.logging.markers', 'REGISTRIES'
+
+            // Recommended logging level for the console
+            property 'forge.logging.console.level', 'debug'
+
+            mods {
+                effortlessbuilding {
+                    source sourceSets.main
+                }
+            }
+        }
+
+        data {
+            workingDirectory project.file('run')
+
+            // Recommended logging data for a userdev environment (SCAN,REGISTRIES,REGISTRYDUMP)
+            property 'forge.logging.markers', 'REGISTRIES'
+
+            // Recommended logging level for the console
+            property 'forge.logging.console.level', 'debug'
+
+            args '--mod', 'effortlessbuilding', '--all', '--output', file('src/generated/resources/')
+
+            mods {
+                effortlessbuilding {
+                    source sourceSets.main
+                }
+            }
+        }
+    }
 }
 
 dependencies {
-    // you may put jars on which you depend on in ./libs
-    // or you may define them like so..
-    //compile "some.group:artifact:version:classifier"
-    //compile "some.group:artifact:version"
+    // Specify the version of Minecraft to use, If this is any group other then 'net.minecraft' it is assumed
+    // that the dep is a ForgeGradle 'patcher' dependency. And it's patches will be applied.
+    // The userdev artifact is a special name and will get all sorts of transformations applied to it.
+    minecraft 'net.minecraftforge:forge:1.14.4-28.2.23'
 
-    // real examples
-    //compile 'com.mod-buildcraft:buildcraft:6.0.8:dev'  // adds buildcraft to the dev env
-    //compile 'com.googlecode.efficient-java-matrix-library:ejml:0.24' // adds ejml to the dev env
+    // You may put jars on which you depend on in ./libs or you may define them like so..
+    // compile "some.group:artifact:version:classifier"
+    // compile "some.group:artifact:version"
 
-    // the 'provided' configuration is for optional dependencies that exist at compile-time but might not at runtime.
-    //provided 'com.mod-buildcraft:buildcraft:6.0.8:dev'
+    // Real examples
+    // compile 'com.mod-buildcraft:buildcraft:6.0.8:dev'  // adds buildcraft to the dev env
+    // compile 'com.googlecode.efficient-java-matrix-library:ejml:0.24' // adds ejml to the dev env
 
-    // the deobf configurations:  'deobfCompile' and 'deobfProvided' are the same as the normal compile and provided,
-    // except that these dependencies get remapped to your current MCP mappings
-    //deobfCompile 'com.mod-buildcraft:buildcraft:6.0.8:dev'
-    //deobfProvided 'com.mod-buildcraft:buildcraft:6.0.8:dev'
+    // The 'provided' configuration is for optional dependencies that exist at compile-time but might not at runtime.
+    // provided 'com.mod-buildcraft:buildcraft:6.0.8:dev'
 
-    // for more info...
+    // These dependencies get remapped to your current MCP mappings
+    // deobf 'com.mod-buildcraft:buildcraft:6.0.8:dev'
+
+    // For more info...
     // http://www.gradle.org/docs/current/userguide/artifact_dependencies_tutorial.html
     // http://www.gradle.org/docs/current/userguide/dependency_management.html
 
 }
 
-processResources {
-    // this will ensure that this task is redone when the versions change.
-    inputs.property "version", project.version
-    inputs.property "mcversion", project.minecraft.version
-
-    // replace stuff in mcmod.info, nothing else
-    from(sourceSets.main.resources.srcDirs) {
-        include 'mcmod.info'
-                
-        // replace version and mcversion
-        expand 'version':project.version, 'mcversion':project.minecraft.version
-    }
-        
-    // copy everything else except the mcmod.info
-    from(sourceSets.main.resources.srcDirs) {
-        exclude 'mcmod.info'
+// Example for how to get properties into the manifest for reading by the runtime..
+jar {
+    manifest {
+        attributes([
+            "Specification-Title": "effortlessbuilding",
+            "Specification-Vendor": "requios",
+            "Specification-Version": "1", // We are version 1 of ourselves
+            "Implementation-Title": project.name,
+            "Implementation-Version": "${version}",
+            "Implementation-Vendor" :"requios",
+            "Implementation-Timestamp": new Date().format("yyyy-MM-dd'T'HH:mm:ssZ")
+        ])
+    }
+}
+
+// Example configuration to allow publishing using the maven-publish task
+// we define a custom artifact that is sourced from the reobfJar output task
+// and then declare that to be published
+// Note you'll need to add a repository here
+def reobfFile = file("$buildDir/reobfJar/output.jar")
+def reobfArtifact = artifacts.add('default', reobfFile) {
+    type 'jar'
+    builtBy 'reobfJar'
+}
+publishing {
+    publications {
+        mavenJava(MavenPublication) {
+            artifact reobfArtifact
+        }
+    }
+    repositories {
+        maven {
+            url "file:///${project.projectDir}/mcmodsrepo"
+        }
     }
 }

gradle.properties

@@ -0,0 +1,4 @@
+# Sets default memory used for gradle commands. Can be overridden by user or command line properties.
+# This is required to provide enough memory for the Minecraft decompilation process.
+org.gradle.jvmargs=-Xmx3G
+org.gradle.daemon=false

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,5 @@
-#Mon Sep 14 12:28:28 PDT 2015
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-2.14-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.9-bin.zip

gradlew

@@ -1,4 +1,4 @@
-#!/usr/bin/env bash
+#!/usr/bin/env sh
 
 ##############################################################################
 ##
@@ -6,47 +6,6 @@
 ##
 ##############################################################################
 
-# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-DEFAULT_JVM_OPTS=""
-
-APP_NAME="Gradle"
-APP_BASE_NAME=`basename "$0"`
-
-# Use the maximum available, or set MAX_FD != -1 to use that value.
-MAX_FD="maximum"
-
-warn ( ) {
-    echo "$*"
-}
-
-die ( ) {
-    echo
-    echo "$*"
-    echo
-    exit 1
-}
-
-# OS specific support (must be 'true' or 'false').
-cygwin=false
-msys=false
-darwin=false
-case "`uname`" in
-  CYGWIN* )
-    cygwin=true
-    ;;
-  Darwin* )
-    darwin=true
-    ;;
-  MINGW* )
-    msys=true
-    ;;
-esac
-
-# For Cygwin, ensure paths are in UNIX format before anything is touched.
-if $cygwin ; then
-    [ -n "$JAVA_HOME" ] && JAVA_HOME=`cygpath --unix "$JAVA_HOME"`
-fi
-
 # Attempt to set APP_HOME
 # Resolve links: $0 may be a link
 PRG="$0"
@@ -61,9 +20,49 @@ while [ -h "$PRG" ] ; do
     fi
 done
 SAVED="`pwd`"
-cd "`dirname \"$PRG\"`/" >&-
+cd "`dirname \"$PRG\"`/" >/dev/null
 APP_HOME="`pwd -P`"
-cd "$SAVED" >&-
+cd "$SAVED" >/dev/null
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS=""
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn () {
+    echo "$*"
+}
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+  NONSTOP* )
+    nonstop=true
+    ;;
+esac
 
 CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
 
@@ -90,7 +89,7 @@ location of your Java installation."
 fi
 
 # Increase the maximum file descriptors if we can.
-if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then
+if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
     MAX_FD_LIMIT=`ulimit -H -n`
     if [ $? -eq 0 ] ; then
         if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
@@ -114,6 +113,7 @@ fi
 if $cygwin ; then
     APP_HOME=`cygpath --path --mixed "$APP_HOME"`
     CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+    JAVACMD=`cygpath --unix "$JAVACMD"`
 
     # We build the pattern for arguments to be converted via cygpath
     ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
@@ -154,11 +154,19 @@ if $cygwin ; then
     esac
 fi
 
-# Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules
-function splitJvmOpts() {
-    JVM_OPTS=("$@")
+# Escape application args
+save () {
+    for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
+    echo " "
 }
-eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS
-JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME"
+APP_ARGS=$(save "$@")
 
-exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@"
+# Collect all arguments for the java command, following the shell quoting and substitution rules
+eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
+
+# by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong
+if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then
+  cd "$(dirname "$0")"
+fi
+
+exec "$JAVACMD" "$@"

gradlew.bat

@@ -8,14 +8,14 @@
 @rem Set local scope for the variables with windows NT shell
 if "%OS%"=="Windows_NT" setlocal
 
-@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-set DEFAULT_JVM_OPTS=
-
 set DIRNAME=%~dp0
 if "%DIRNAME%" == "" set DIRNAME=.
 set APP_BASE_NAME=%~n0
 set APP_HOME=%DIRNAME%
 
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS=
+
 @rem Find java.exe
 if defined JAVA_HOME goto findJavaFromJavaHome
 
@@ -46,10 +46,9 @@ echo location of your Java installation.
 goto fail
 
 :init
-@rem Get command-line arguments, handling Windowz variants
+@rem Get command-line arguments, handling Windows variants
 
 if not "%OS%" == "Windows_NT" goto win9xME_args
-if "%@eval[2+2]" == "4" goto 4NT_args
 
 :win9xME_args
 @rem Slurp the command line arguments.
@@ -60,11 +59,6 @@ set _SKIP=2
 if "x%~1" == "x" goto execute
 
 set CMD_LINE_ARGS=%*
-goto execute
-
-:4NT_args
-@rem Get arguments from the 4NT Shell from JP Software
-set CMD_LINE_ARGS=%$
 
 :execute
 @rem Setup the command line

src/main/java/nl/requios/effortlessbuilding/Array.java

@@ -1,113 +0,0 @@
-package nl.requios.effortlessbuilding;
-
-import net.minecraft.block.Block;
-import net.minecraft.block.state.IBlockState;
-import net.minecraft.entity.player.EntityPlayer;
-import net.minecraft.item.ItemStack;
-import net.minecraft.util.EnumFacing;
-import net.minecraft.util.EnumHand;
-import net.minecraft.util.math.BlockPos;
-import net.minecraft.util.math.Vec3i;
-import net.minecraft.world.World;
-import net.minecraftforge.event.world.BlockEvent;
-import net.minecraftforge.items.IItemHandler;
-import nl.requios.effortlessbuilding.item.ItemRandomizerBag;
-
-public class Array {
-    //TODO config file
-    public static final int MAX_COUNT = 100;
-
-    public static class ArraySettings{
-        public boolean enabled = false;
-        public BlockPos offset = BlockPos.ORIGIN;
-        public int count = 5;
-
-        public ArraySettings(){
-        }
-
-        public ArraySettings(boolean enabled, BlockPos offset, int count) {
-            this.enabled = enabled;
-            this.offset = offset;
-            this.count = count;
-        }
-    }
-
-    //Called from EventHandler
-    public static void onBlockPlaced(BlockEvent.PlaceEvent event) {
-        if (event.getWorld().isRemote) return;
-
-        //find arraysettings for the player that placed the block
-        ArraySettings a = BuildSettingsManager.getBuildSettings(event.getPlayer()).getArraySettings();
-        if (a == null || !a.enabled) return;
-
-        if (a.offset.getX() == 0 && a.offset.getY() == 0 && a.offset.getZ() == 0) return;
-
-        BlockPos pos = event.getPos();
-        Vec3i offset = new Vec3i(a.offset.getX(), a.offset.getY(), a.offset.getZ());
-
-        //Randomizer bag synergy
-        IItemHandler bagInventory = null;
-        if (event.getPlayer().getHeldItemMainhand().getItem() instanceof ItemRandomizerBag) {
-            bagInventory = ItemRandomizerBag.getBagInventory(event.getPlayer().getHeldItemMainhand());
-        }
-
-        //Get itemstack
-        ItemStack itemStack = event.getPlayer().getHeldItem(event.getHand());
-
-        for (int i = 0; i < a.count; i++) {
-            pos = pos.add(offset);
-            if (event.getWorld().isBlockLoaded(pos, true)) {
-                if (itemStack.isEmpty()) break;
-
-                //Check if held block = placed block (otherwise its a bag or wand)
-                if (!event.getPlayer().isCreative() && Block.getBlockFromItem(itemStack.getItem()) == event.getPlacedBlock().getBlock()) {
-                    itemStack.shrink(1);
-                }
-
-                //Randomizer bag synergy
-                IBlockState blockState = bagInventory == null ? event.getPlacedBlock() :
-                        getBlockStateFromRandomizerBag(bagInventory, event.getWorld(), event.getPlayer(), event.getPos());
-
-                //TODO check if can place (ItemBlock) and if can break replaced
-
-                //Drop existing block
-                SurvivalHelper.dropBlock(event.getWorld(), pos, event.getPlayer());
-
-                event.getWorld().setBlockState(pos, blockState);
-            }
-        }
-        //EffortlessBuilding.log(event.getPlayer(), String.valueOf(event.getPlayer().getHeldItem(event.getHand()).getCount()));
-    }
-
-    private static IBlockState getBlockStateFromRandomizerBag(IItemHandler bagInventory, World world, EntityPlayer player, BlockPos pos) {
-        int randomSlot = ItemRandomizerBag.pickRandomSlot(bagInventory);
-        ItemStack stack = bagInventory.getStackInSlot(randomSlot);
-        //TODO get facing from getPlacedAgainst and getPlacedBlock
-        return Block.getBlockFromItem(stack.getItem()).getStateForPlacement(world, pos, EnumFacing.NORTH, 0, 0, 0, stack.getMetadata(), player, EnumHand.MAIN_HAND);
-    }
-
-    //Called from EventHandler
-    public static void onBlockBroken(BlockEvent.BreakEvent event) {
-        if (event.getWorld().isRemote) return;
-
-        //find arraysettings for the player that placed the block
-        ArraySettings a = BuildSettingsManager.getBuildSettings(event.getPlayer()).getArraySettings();
-        if (a == null || !a.enabled) return;
-
-        if (a.offset.getX() == 0 && a.offset.getY() == 0 && a.offset.getZ() == 0) return;
-
-        BlockPos pos = event.getPos();
-        Vec3i offset = new Vec3i(a.offset.getX(), a.offset.getY(), a.offset.getZ());
-        for (int i = 0; i < a.count; i++) {
-            pos = pos.add(offset);
-            if (event.getWorld().isBlockLoaded(pos, false)) {
-                //TODO check if can break
-
-                //Drop existing block
-                SurvivalHelper.dropBlock(event.getWorld(), pos, event.getPlayer());
-
-                event.getWorld().setBlockToAir(pos);
-            }
-        }
-    }
-}

src/main/java/nl/requios/effortlessbuilding/BuildConfig.java

@@ -0,0 +1,134 @@
+package nl.requios.effortlessbuilding;
+
+import net.minecraftforge.common.ForgeConfigSpec;
+
+public class BuildConfig {
+
+    private static final ForgeConfigSpec.Builder builder = new ForgeConfigSpec.Builder();
+    public static final Reach reach = new Reach(builder);
+    public static final SurvivalBalancers survivalBalancers = new SurvivalBalancers(builder);
+    public static final Visuals visuals = new Visuals(builder);
+    public static final ForgeConfigSpec spec = builder.build();
+
+    public static class Reach {
+        public final ForgeConfigSpec.ConfigValue<Boolean> enableReachUpgrades;
+        public final ForgeConfigSpec.ConfigValue<Integer> maxReachCreative;
+        public final ForgeConfigSpec.ConfigValue<Integer> maxReachLevel0;
+        public final ForgeConfigSpec.ConfigValue<Integer> maxReachLevel1;
+        public final ForgeConfigSpec.ConfigValue<Integer> maxReachLevel2;
+        public final ForgeConfigSpec.ConfigValue<Integer> maxReachLevel3;
+
+        public Reach(ForgeConfigSpec.Builder builder) {
+            builder.push("Reach");
+            enableReachUpgrades = builder
+                    .comment("Reach: how far away the player can place blocks using mirror/array etc.",
+                            "Enable the crafting of reach upgrades to increase reach.",
+                            "If disabled, reach is set to level 3 for survival players.")
+                    .define("enableReachUpgrades", true);
+
+            maxReachCreative = builder
+                    .comment("Maximum reach in creative",
+                            "Keep in mind that chunks need to be loaded to be able to place blocks inside.")
+                    .define("maxReachCreative", 200);
+
+            maxReachLevel0 = builder
+                    .comment("Maximum reach in survival without upgrades",
+                            "Reach upgrades are craftable consumables that permanently increase reach.",
+                            "Set to 0 to disable Effortless Building until the player has consumed a reach upgrade.")
+                    .define("maxReachLevel0", 20);
+
+            maxReachLevel1 = builder
+                    .comment("Maximum reach in survival with one upgrade")
+                    .define("maxReachLevel1", 50);
+
+            maxReachLevel2 = builder
+                    .comment("Maximum reach in survival with two upgrades")
+                    .define("maxReachLevel2", 100);
+
+            maxReachLevel3 = builder
+                    .comment("Maximum reach in survival with three upgrades")
+                    .define("maxReachLevel3", 200);
+
+            builder.pop();
+        }
+    }
+
+    public static class SurvivalBalancers {
+        public final ForgeConfigSpec.ConfigValue<Boolean> breakFar;
+        public final ForgeConfigSpec.ConfigValue<Boolean> increasedMiningTime;
+        public final ForgeConfigSpec.ConfigValue<Integer> miningTimePercentage;
+        public final ForgeConfigSpec.ConfigValue<Integer> quickReplaceMiningLevel;
+        public final ForgeConfigSpec.ConfigValue<Integer> undoStackSize;
+
+        public SurvivalBalancers(ForgeConfigSpec.Builder builder) {
+            builder.push("SurvivalBalancers");
+
+            breakFar = builder
+                    .comment("Allows a survival player to break blocks that are far away, in addition to placing blocks.",
+                            "Note: this allows insta-breaking of blocks in survival.")
+                    .define("breakFar", false);
+
+            increasedMiningTime = builder
+                    .comment("Increases the time to mine a block when breaking multiple at once.",
+                            "Mining time depends on how many blocks, what type of blocks, and the percentage below.",
+                            "Example: breaking 1 dirt + 1 obsidian takes the time of breaking 1 dirt + 1 obsidian.")
+                    .define("increasedMiningTime", true);
+
+            miningTimePercentage = builder
+                    .comment("How much the mining time of each additional block counts towards an increased mining time.",
+                            "A percentage between 0% and 100%, where 0% is the same as disabling it,",
+                            "and 100% takes as much time as breaking each block individually.",
+                            "The block in front of you always counts as 100%.")
+                    .defineInRange("miningTimePercentage", 50, 0, 200);
+
+            quickReplaceMiningLevel = builder
+                    .comment("Determines what blocks can be replaced in survival.",
+                            "-1: only blocks that can be harvested by hand (default)",
+                            "0: blocks that can be harvested with wooden or gold tools",
+                            "1: blocks that can be harvested with stone tools",
+                            "2: blocks that can be harvested with iron tools",
+                            "3: blocks that can be harvested with diamond tools")
+                    .defineInRange("quickReplaceMiningLevel", -1, -1, 3);
+
+            undoStackSize = builder
+                    .comment("How many placements are remembered for the undo functionality.")
+                    .worldRestart()
+                    .define("undoStackSize", 10);
+
+            builder.pop();
+        }
+    }
+
+    public static class Visuals {
+        public final ForgeConfigSpec.ConfigValue<Boolean> alwaysShowBlockPreview;
+        public final ForgeConfigSpec.ConfigValue<Double> dissolveTimeMultiplier;
+        public final ForgeConfigSpec.ConfigValue<Integer> shaderTreshold;
+        public final ForgeConfigSpec.ConfigValue<Boolean> useShaders;
+
+        public Visuals(ForgeConfigSpec.Builder builder) {
+            builder.push("Visuals");
+
+            alwaysShowBlockPreview = builder
+                    .comment("Show a block preview if you have a block in hand even in the 'Normal' build mode")
+                    .define("alwaysShowBlockPreview", false);
+
+            dissolveTimeMultiplier = builder
+                    .comment("How long the dissolve effect takes when placing blocks.",
+                            "Default between 30 and 60 ticks, you can multiply that here.",
+                            "Recommended values:",
+                            "Snappy: 0.7",
+                            "Relaxing: 1.5")
+                    .define("dissolveTimeMultiplier", 1.0);
+
+            shaderTreshold = builder
+                    .comment("Switch to using the simple performance shader when placing more than this many blocks.")
+                    .define("shaderTreshold", 1500);
+
+            useShaders = builder
+                    .comment("Use fancy shaders while placing blocks")
+                    .define("useShaders", true);
+
+            builder.pop();
+        }
+    }
+}

src/main/java/nl/requios/effortlessbuilding/BuildSettingsManager.java

@@ -1,102 +0,0 @@
-package nl.requios.effortlessbuilding;
-
-import net.minecraft.entity.player.EntityPlayer;
-import net.minecraft.entity.player.EntityPlayerMP;
-import net.minecraftforge.fml.common.Mod;
-import net.minecraftforge.fml.common.eventhandler.SubscribeEvent;
-import net.minecraftforge.fml.common.gameevent.PlayerEvent;
-import nl.requios.effortlessbuilding.capability.BuildModifierCapability;
-import nl.requios.effortlessbuilding.network.BuildSettingsMessage;
-
-@Mod.EventBusSubscriber
-public class BuildSettingsManager {
-
-    public static BuildSettings getBuildSettings(EntityPlayer player){
-        if (player.hasCapability(BuildModifierCapability.buildModifier, null)) {
-            BuildModifierCapability.IBuildModifier capability = player.getCapability(BuildModifierCapability.buildModifier, null);
-            return capability.getBuildModifierData();
-        }
-        EffortlessBuilding.log("buildsettings is null");
-        return null;
-    }
-
-    public static void setBuildSettings(EntityPlayer player, BuildSettings buildSettings) {
-        if (player == null) {
-            EffortlessBuilding.log("cannot set buildsettings, player is null");
-            return;
-        }
-        if (player.hasCapability(BuildModifierCapability.buildModifier, null)) {
-            BuildModifierCapability.IBuildModifier capability = player.getCapability(BuildModifierCapability.buildModifier, null);
-            capability.setBuildModifierData(buildSettings);
-        } else {
-            EffortlessBuilding.log(player, "Saving buildsettings failed.");
-        }
-    }
-
-    public static class BuildSettings {
-        private Mirror.MirrorSettings mirrorSettings;
-        private Array.ArraySettings arraySettings;
-        private boolean quickReplace = false;
-
-        public BuildSettings() {
-            mirrorSettings = new Mirror.MirrorSettings();
-            arraySettings = new Array.ArraySettings();
-        }
-
-        public BuildSettings(Mirror.MirrorSettings mirrorSettings, Array.ArraySettings arraySettings, boolean quickReplace) {
-            this.mirrorSettings = mirrorSettings;
-            this.arraySettings = arraySettings;
-            this.quickReplace = quickReplace;
-        }
-
-        public Mirror.MirrorSettings getMirrorSettings() {
-            return mirrorSettings;
-        }
-
-        public void setMirrorSettings(Mirror.MirrorSettings mirrorSettings) {
-            this.mirrorSettings = mirrorSettings;
-        }
-
-        public Array.ArraySettings getArraySettings() {
-            return arraySettings;
-        }
-
-        public void setArraySettings(Array.ArraySettings arraySettings) {
-            this.arraySettings = arraySettings;
-        }
-
-        public boolean doQuickReplace() {
-            return quickReplace;
-        }
-
-        public void setQuickReplace(boolean quickReplace) {
-            this.quickReplace = quickReplace;
-        }
-    }
-
-    @SubscribeEvent
-    public static void onPlayerLoggedIn(PlayerEvent.PlayerLoggedInEvent event) {
-        EntityPlayer player = event.player;
-        handleNewPlayer(player);
-    }
-
-    @SubscribeEvent
-    public static void onPlayerRespawn(PlayerEvent.PlayerRespawnEvent event) {
-        EntityPlayer player = event.player;
-        handleNewPlayer(player);
-    }
-
-    private static void handleNewPlayer(EntityPlayer player){
-        if (getBuildSettings(player) == null) {
-            setBuildSettings(player, new BuildSettings());
-        }
-
-        //Only on server
-        if (!player.world.isRemote) {
-            //Send to client
-            BuildSettingsMessage msg = new BuildSettingsMessage(getBuildSettings(player));
-            EffortlessBuilding.packetHandler.sendTo(msg, (EntityPlayerMP) player);
-        }
-    }
-}
-

src/main/java/nl/requios/effortlessbuilding/EffortlessBuilding.java

@@ -1,108 +1,157 @@
 package nl.requios.effortlessbuilding;
 
 import net.minecraft.block.Block;
-import net.minecraft.entity.player.EntityPlayer;
+import net.minecraft.entity.player.PlayerEntity;
+import net.minecraft.inventory.container.Container;
+import net.minecraft.inventory.container.ContainerType;
 import net.minecraft.item.Item;
-import net.minecraft.util.text.TextComponentString;
+import net.minecraft.util.ResourceLocation;
+import net.minecraft.util.registry.Registry;
+import net.minecraft.util.text.StringTextComponent;
+import net.minecraftforge.common.MinecraftForge;
 import net.minecraftforge.common.capabilities.CapabilityManager;
+import net.minecraftforge.common.crafting.CraftingHelper;
+import net.minecraftforge.eventbus.api.SubscribeEvent;
+import net.minecraftforge.fml.DistExecutor;
+import net.minecraftforge.fml.ExtensionPoint;
+import net.minecraftforge.fml.ModLoadingContext;
 import net.minecraftforge.fml.common.Mod;
-import net.minecraftforge.fml.common.Mod.EventHandler;
-import net.minecraftforge.fml.common.SidedProxy;
-import net.minecraftforge.fml.common.event.FMLInitializationEvent;
-import net.minecraftforge.fml.common.event.FMLPostInitializationEvent;
-import net.minecraftforge.fml.common.event.FMLPreInitializationEvent;
-import net.minecraftforge.fml.common.event.FMLServerStartingEvent;
-import net.minecraftforge.fml.common.network.NetworkRegistry;
-import net.minecraftforge.fml.common.network.simpleimpl.SimpleNetworkWrapper;
-import net.minecraftforge.fml.relauncher.Side;
-import nl.requios.effortlessbuilding.capability.*;
-import nl.requios.effortlessbuilding.gui.RandomizerBagGuiHandler;
+import net.minecraftforge.fml.config.ModConfig;
+import net.minecraftforge.fml.event.lifecycle.FMLClientSetupEvent;
+import net.minecraftforge.fml.event.lifecycle.FMLCommonSetupEvent;
+import net.minecraftforge.fml.event.lifecycle.InterModEnqueueEvent;
+import net.minecraftforge.fml.event.lifecycle.InterModProcessEvent;
+import net.minecraftforge.fml.event.server.FMLServerStartingEvent;
+import net.minecraftforge.fml.javafmlmod.FMLJavaModLoadingContext;
+import nl.requios.effortlessbuilding.capability.ModeCapabilityManager;
+import nl.requios.effortlessbuilding.capability.ModifierCapabilityManager;
+import nl.requios.effortlessbuilding.command.CommandReach;
+import nl.requios.effortlessbuilding.compatibility.CompatHelper;
+import nl.requios.effortlessbuilding.gui.RandomizerBagContainer;
 import nl.requios.effortlessbuilding.item.ItemRandomizerBag;
-import nl.requios.effortlessbuilding.network.BuildSettingsMessage;
-import nl.requios.effortlessbuilding.network.QuickReplaceMessage;
+import nl.requios.effortlessbuilding.item.ItemReachUpgrade1;
+import nl.requios.effortlessbuilding.item.ItemReachUpgrade2;
+import nl.requios.effortlessbuilding.item.ItemReachUpgrade3;
+import nl.requios.effortlessbuilding.network.PacketHandler;
+import nl.requios.effortlessbuilding.proxy.ClientProxy;
 import nl.requios.effortlessbuilding.proxy.IProxy;
+import nl.requios.effortlessbuilding.proxy.ServerProxy;
+import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
 
-@Mod(modid = EffortlessBuilding.MODID, name = EffortlessBuilding.NAME, version = EffortlessBuilding.VERSION)
-@Mod.EventBusSubscriber
+// The value here should match an entry in the META-INF/mods.toml file
+@Mod(EffortlessBuilding.MODID)
+@Mod.EventBusSubscriber(bus=Mod.EventBusSubscriber.Bus.MOD)
 public class EffortlessBuilding
 {
     public static final String MODID = "effortlessbuilding";
     public static final String NAME = "Effortless Building";
-    public static final String VERSION = "0.1.3";
+    public static final String VERSION = "1.14.4-2.21";
 
-    @Mod.Instance(EffortlessBuilding.MODID)
     public static EffortlessBuilding instance;
 
-    public static Logger logger;
+    public static final Logger logger = LogManager.getLogger();
 
-    @SidedProxy(
-        clientSide="nl.requios.effortlessbuilding.proxy.ClientProxy",
-        serverSide="nl.requios.effortlessbuilding.proxy.ServerProxy"
-    )
-    public static IProxy proxy;
-
-    public static final SimpleNetworkWrapper packetHandler = NetworkRegistry.INSTANCE.newSimpleChannel(EffortlessBuilding.MODID);
+    public static IProxy proxy = DistExecutor.runForDist(() -> ClientProxy::new, () -> ServerProxy::new);
 
     public static final ItemRandomizerBag ITEM_RANDOMIZER_BAG = new ItemRandomizerBag();
+    public static final ItemReachUpgrade1 ITEM_REACH_UPGRADE_1 = new ItemReachUpgrade1();
+    public static final ItemReachUpgrade2 ITEM_REACH_UPGRADE_2 = new ItemReachUpgrade2();
+    public static final ItemReachUpgrade3 ITEM_REACH_UPGRADE_3 = new ItemReachUpgrade3();
 
     public static final Block[] BLOCKS = {
     };
 
     public static final Item[] ITEMS = {
-            ITEM_RANDOMIZER_BAG
+            ITEM_RANDOMIZER_BAG,
+            ITEM_REACH_UPGRADE_1,
+            ITEM_REACH_UPGRADE_2,
+            ITEM_REACH_UPGRADE_3
     };
 
-    public static final int RANDOMIZER_BAG_GUI = 0;
+    public static final ContainerType<RandomizerBagContainer> RANDOMIZER_BAG_CONTAINER = register("randomizer_bag", RandomizerBagContainer::new);
+    public static final ResourceLocation RANDOMIZER_BAG_GUI = new ResourceLocation(EffortlessBuilding.MODID, "randomizer_bag");
 
-    @EventHandler
-    // preInit "Run before anything else. Read your config, create blocks, items, etc, and register them with the GameRegistry."
-    public void preInit(FMLPreInitializationEvent event)
-    {
-        logger = event.getModLog();
+    public EffortlessBuilding() {
+        instance = this;
 
-        CapabilityManager.INSTANCE.register(BuildModifierCapability.IBuildModifier.class, new BuildModifierCapability.Storage(), BuildModifierCapability.BuildModifier.class);
+        // Register the setup method for modloading
+        FMLJavaModLoadingContext.get().getModEventBus().addListener(this::setup);
+        // Register the enqueueIMC method for modloading
+        FMLJavaModLoadingContext.get().getModEventBus().addListener(this::enqueueIMC);
+        // Register the processIMC method for modloading
+        FMLJavaModLoadingContext.get().getModEventBus().addListener(this::processIMC);
+        // Register the clientSetup method for modloading
+        FMLJavaModLoadingContext.get().getModEventBus().addListener(this::clientSetup);
 
-        EffortlessBuilding.packetHandler.registerMessage(BuildSettingsMessage.MessageHandler.class, BuildSettingsMessage.class, 0, Side.SERVER);
-        EffortlessBuilding.packetHandler.registerMessage(BuildSettingsMessage.MessageHandler.class, BuildSettingsMessage.class, 0, Side.CLIENT);
+        //Register config
+        ModLoadingContext.get().registerConfig(ModConfig.Type.COMMON, BuildConfig.spec);
 
-        EffortlessBuilding.packetHandler.registerMessage(QuickReplaceMessage.MessageHandler.class, QuickReplaceMessage.class, 1, Side.SERVER);
-        EffortlessBuilding.packetHandler.registerMessage(QuickReplaceMessage.MessageHandler.class, QuickReplaceMessage.class, 1, Side.CLIENT);
-
-        proxy.preInit(event);
+        // Register ourselves for server and other game events we are interested in
+        MinecraftForge.EVENT_BUS.register(this);
     }
 
-    @EventHandler
-    // Do your mod setup. Build whatever data structures you care about.
-    // Register network handlers
-    public void init(FMLInitializationEvent event)
+    @SubscribeEvent
+    public void setup(final FMLCommonSetupEvent event)
     {
-        NetworkRegistry.INSTANCE.registerGuiHandler(EffortlessBuilding.instance, new RandomizerBagGuiHandler());
-        proxy.init(event);
+        CapabilityManager.INSTANCE.register(ModifierCapabilityManager.IModifierCapability.class, new ModifierCapabilityManager.Storage(), ModifierCapabilityManager.ModifierCapability::new);
+        CapabilityManager.INSTANCE.register(ModeCapabilityManager.IModeCapability.class, new ModeCapabilityManager.Storage(), ModeCapabilityManager.ModeCapability::new);
+
+        PacketHandler.register();
+
+        //TODO 1.13 config
+//        ConfigManager.sync(MODID, Config.Type.INSTANCE);
+
+        proxy.setup(event);
+
+        CompatHelper.setup();
     }
 
-    @EventHandler
-    // postInit "Handle interaction with other mods, complete your setup based on this."
-    public void postInit(FMLPostInitializationEvent event)
-    {
-        proxy.postInit(event);
+    @SubscribeEvent
+    public void clientSetup(final FMLClientSetupEvent event) {
+
+        proxy.clientSetup(event);
     }
 
-    @EventHandler
-    public void serverStarting(FMLServerStartingEvent event)
-    {
-        proxy.serverStarting(event);
+    @SubscribeEvent
+    public void enqueueIMC(final InterModEnqueueEvent event) {
+
+        // some example code to dispatch IMC to another mod
+//        InterModComms.sendTo("examplemod", "helloworld", () -> { logger.info("Hello world from the MDK"); return "Hello world";});
+    }
+
+    @SubscribeEvent
+    public void processIMC(final InterModProcessEvent event) {
+
+        // some example code to receive and process InterModComms from other mods
+//        logger.info("Got IMC {}", event.getIMCStream().
+//                map(m->m.getMessageSupplier().get()).
+//                collect(Collectors.toList()));
+    }
+
+    @SubscribeEvent
+    public void onServerStarting(FMLServerStartingEvent event) {
+        CommandReach.register(event.getCommandDispatcher());
+    }
+
+    private static <T extends Container> ContainerType<T> register(String key, ContainerType.IFactory<T> factory) {
+        return Registry.register(Registry.MENU, key, new ContainerType<>(factory));
     }
 
     public static void log(String msg){
         logger.info(msg);
     }
 
-    public static void log(EntityPlayer player, String msg){
+    public static void log(PlayerEntity player, String msg){
         log(player, msg, false);
     }
 
-    public static void log(EntityPlayer player, String msg, boolean actionBar){
-        player.sendStatusMessage(new TextComponentString(msg), actionBar);
+    public static void log(PlayerEntity player, String msg, boolean actionBar){
+        player.sendStatusMessage(new StringTextComponent(msg), actionBar);
+    }
+
+    //Log with translation supported, call either on client or server (which then sends a message)
+    public static void logTranslate(PlayerEntity player, String prefix, String translationKey, String suffix, boolean actionBar){
+        proxy.logTranslate(player, prefix, translationKey, suffix, actionBar);
     }
 }

src/main/java/nl/requios/effortlessbuilding/EventHandler.java

@@ -1,61 +1,209 @@
 package nl.requios.effortlessbuilding;
 
-import net.minecraft.block.Block;
+import net.minecraft.block.BlockState;
+import net.minecraft.block.Blocks;
 import net.minecraft.entity.Entity;
-import net.minecraft.entity.player.EntityPlayer;
-import net.minecraft.item.Item;
-import net.minecraft.item.ItemBlock;
-import net.minecraft.item.crafting.IRecipe;
-import net.minecraft.util.EnumHand;
+import net.minecraft.entity.player.PlayerEntity;
+import net.minecraft.entity.player.ServerPlayerEntity;
 import net.minecraft.util.ResourceLocation;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.world.World;
+import net.minecraftforge.client.event.TextureStitchEvent;
 import net.minecraftforge.event.AttachCapabilitiesEvent;
-import net.minecraftforge.event.RegistryEvent;
+import net.minecraftforge.event.entity.player.PlayerEvent;
 import net.minecraftforge.event.world.BlockEvent;
+import net.minecraftforge.eventbus.api.SubscribeEvent;
 import net.minecraftforge.fml.common.Mod;
-import net.minecraftforge.fml.common.eventhandler.SubscribeEvent;
-import nl.requios.effortlessbuilding.capability.BuildModifierCapability;
+import net.minecraftforge.fml.network.PacketDistributor;
+import nl.requios.effortlessbuilding.buildmode.BuildModes;
+import nl.requios.effortlessbuilding.buildmode.ModeSettingsManager;
+import nl.requios.effortlessbuilding.buildmodifier.BuildModifiers;
+import nl.requios.effortlessbuilding.buildmodifier.ModifierSettingsManager;
+import nl.requios.effortlessbuilding.buildmodifier.UndoRedo;
+import nl.requios.effortlessbuilding.capability.ModeCapabilityManager;
+import nl.requios.effortlessbuilding.capability.ModifierCapabilityManager;
+import nl.requios.effortlessbuilding.helper.ReachHelper;
+import nl.requios.effortlessbuilding.helper.SurvivalHelper;
+import nl.requios.effortlessbuilding.network.AddUndoMessage;
+import nl.requios.effortlessbuilding.network.ClearUndoMessage;
+import nl.requios.effortlessbuilding.network.PacketHandler;
+import nl.requios.effortlessbuilding.network.RequestLookAtMessage;
+
+import java.util.List;
 
 @Mod.EventBusSubscriber
 public class EventHandler
 {
-    @SubscribeEvent
-    public static void registerBlocks(RegistryEvent.Register<Block> event)
-    {
-        event.getRegistry().registerAll(EffortlessBuilding.BLOCKS);
-    }
-
-    @SubscribeEvent
-    public static void registerItems(RegistryEvent.Register<Item> event)
-    {
-        event.getRegistry().registerAll(EffortlessBuilding.ITEMS);
-
-        for (Block block : EffortlessBuilding.BLOCKS)
-        {
-            event.getRegistry().register(new ItemBlock(block).setRegistryName(block.getRegistryName()));
-        }
-    }
 
     @SubscribeEvent
     public static void attachCapabilities(AttachCapabilitiesEvent<Entity> event) {
-        if (event.getObject() instanceof EntityPlayer) {
-            event.addCapability(new ResourceLocation(EffortlessBuilding.MODID, "BuildModifier"), new BuildModifierCapability.Provider());
+        if (event.getObject() instanceof PlayerEntity) {
+            event.addCapability(new ResourceLocation(EffortlessBuilding.MODID, "build_modifier"), new ModifierCapabilityManager.Provider());
+            event.addCapability(new ResourceLocation(EffortlessBuilding.MODID, "build_mode"), new ModeCapabilityManager.Provider());
         }
     }
 
+    //TODO 1.13 config
+//    @SubscribeEvent
+//    public static void onConfigChangedEvent(ConfigChangedEvent.OnConfigChangedEvent event)
+//    {
+//        if (event.getModID().equals(EffortlessBuilding.MODID))
+//        {
+//            ConfigManager.sync(EffortlessBuilding.MODID, Config.Type.INSTANCE);
+//        }
+//    }
+
+//    @SubscribeEvent
+//    public static void onServerTick(TickEvent.ServerTickEvent event) {
+//
+//    }
 
     @SubscribeEvent
-    public static void onBlockPlaced(BlockEvent.PlaceEvent event) {
-        QuickReplace.onBlockPlaced(event);
-        if (event.isCanceled()) return;
-        Mirror.onBlockPlaced(event);
-        Array.onBlockPlaced(event);
+    //Only called serverside (except with lilypads...)
+    public static void onBlockPlaced(BlockEvent.EntityPlaceEvent event) {
+        if (event.getWorld().isRemote()) return;
+
+        if (!(event.getEntity() instanceof PlayerEntity)) return;
+
+        //Cancel event if necessary
+        ServerPlayerEntity player = ((ServerPlayerEntity) event.getEntity());
+        BuildModes.BuildModeEnum buildMode = ModeSettingsManager.getModeSettings(player).getBuildMode();
+        ModifierSettingsManager.ModifierSettings modifierSettings = ModifierSettingsManager.getModifierSettings(player);
+
+        if (buildMode != BuildModes.BuildModeEnum.NORMAL) {
+            event.setCanceled(true);
+        } else if (modifierSettings.doQuickReplace()) {
+            //Cancel event and send message if QuickReplace
+            event.setCanceled(true);
+            PacketHandler.INSTANCE.send(PacketDistributor.PLAYER.with(() -> player), new RequestLookAtMessage(true));
+            PacketHandler.INSTANCE.send(PacketDistributor.PLAYER.with(() -> player), new AddUndoMessage(event.getPos(), event.getBlockSnapshot().getReplacedBlock(), event.getState()));
+        } else {
+            //NORMAL mode, let vanilla handle block placing
+            //But modifiers should still work
+
+            //Send message to client, which sends message back with raytrace info
+            PacketHandler.INSTANCE.send(PacketDistributor.PLAYER.with(() -> player), new RequestLookAtMessage(false));
+            PacketHandler.INSTANCE.send(PacketDistributor.PLAYER.with(() -> player), new AddUndoMessage(event.getPos(), event.getBlockSnapshot().getReplacedBlock(), event.getState()));
         }
 
+//        Stat<ResourceLocation> blocksPlacedStat = StatList.CUSTOM.get(new ResourceLocation(EffortlessBuilding.MODID, "blocks_placed"));
+//        player.getStats().increment(player, blocksPlacedStat, 1);
+//
+//        System.out.println(player.getStats().getValue(blocksPlacedStat));
+    }
 
     @SubscribeEvent
     public static void onBlockBroken(BlockEvent.BreakEvent event) {
-        Mirror.onBlockBroken(event);
-        Array.onBlockBroken(event);
+        if (event.getWorld().isRemote()) return;
+
+        //Cancel event if necessary
+        //If cant break far then dont cancel event ever
+        BuildModes.BuildModeEnum buildMode = ModeSettingsManager.getModeSettings(event.getPlayer()).getBuildMode();
+        if (buildMode != BuildModes.BuildModeEnum.NORMAL && ReachHelper.canBreakFar(event.getPlayer())) {
+            event.setCanceled(true);
+        } else {
+            //NORMAL mode, let vanilla handle block breaking
+            //But modifiers and QuickReplace should still work
+            //Dont break the original block yourself, otherwise Tinkers Hammer and Veinminer won't work
+            BuildModes.onBlockBroken(event.getPlayer(), event.getPos(), false);
+
+            //Add to undo stack in client
+            PacketHandler.INSTANCE.send(PacketDistributor.PLAYER.with(() -> (ServerPlayerEntity) event.getPlayer()), new AddUndoMessage(event.getPos(), event.getState(), Blocks.AIR.getDefaultState()));
+        }
     }
 
+    @SubscribeEvent
+    public static void breakSpeed(PlayerEvent.BreakSpeed event) {
+        //Disable if config says so
+        if (!BuildConfig.survivalBalancers.increasedMiningTime.get()) return;
+
+        PlayerEntity player = event.getEntityPlayer();
+        World world = player.world;
+        BlockPos pos = event.getPos();
+
+        //EffortlessBuilding.log(player, String.valueOf(event.getNewSpeed()));
+
+        float originalBlockHardness = event.getState().getBlockHardness(world, pos);
+        if (originalBlockHardness < 0) return; //Dont break bedrock
+        float totalBlockHardness = 0;
+        //get coordinates
+        List<BlockPos> coordinates = BuildModifiers.findCoordinates(player, pos);
+        for (int i = 1; i < coordinates.size(); i++) {
+            BlockPos coordinate = coordinates.get(i);
+            //get existing blockstates at those coordinates
+            BlockState blockState = world.getBlockState(coordinate);
+            //add hardness for each blockstate, if can break
+            if (SurvivalHelper.canBreak(world, player, coordinate))
+                totalBlockHardness += blockState.getBlockHardness(world, coordinate);
+        }
+
+        //Grabbing percentage from config
+        float percentage = (float) BuildConfig.survivalBalancers.miningTimePercentage.get() / 100;
+        totalBlockHardness *= percentage;
+        totalBlockHardness += originalBlockHardness;
+
+        float newSpeed = event.getOriginalSpeed() / totalBlockHardness * originalBlockHardness;
+        if (Float.isNaN(newSpeed) || newSpeed == 0f) newSpeed = 1f;
+        event.setNewSpeed(newSpeed);
+
+        //EffortlessBuilding.log(player, String.valueOf(event.getNewSpeed()));
+    }
+
+    @SubscribeEvent
+    public static void onPlayerLoggedIn(PlayerEvent.PlayerLoggedInEvent event) {
+        PlayerEntity player = event.getPlayer();
+        ModifierSettingsManager.handleNewPlayer(player);
+        ModeSettingsManager.handleNewPlayer(player);
+    }
+
+    @SubscribeEvent
+    public static void onPlayerLoggedOut(PlayerEvent.PlayerLoggedOutEvent event) {
+        PlayerEntity player = event.getPlayer();
+        if (player.getEntityWorld().isRemote) return;
+
+        UndoRedo.clear(player);
+        PacketHandler.INSTANCE.send(PacketDistributor.PLAYER.with(() -> (ServerPlayerEntity) player), new ClearUndoMessage());
+    }
+
+    @SubscribeEvent
+    public static void onPlayerRespawn(PlayerEvent.PlayerRespawnEvent event) {
+        PlayerEntity player = event.getPlayer();
+        ModifierSettingsManager.handleNewPlayer(player);
+        ModeSettingsManager.handleNewPlayer(player);
+    }
+
+    @SubscribeEvent
+    public static void onPlayerChangedDimension(PlayerEvent.PlayerChangedDimensionEvent event) {
+        PlayerEntity player = event.getPlayer();
+        if (player.getEntityWorld().isRemote) return;
+
+        //Set build mode to normal
+        ModeSettingsManager.ModeSettings modeSettings = ModeSettingsManager.getModeSettings(player);
+        modeSettings.setBuildMode(BuildModes.BuildModeEnum.NORMAL);
+        ModeSettingsManager.setModeSettings(player, modeSettings);
+
+        //Disable modifiers
+        ModifierSettingsManager.ModifierSettings modifierSettings = ModifierSettingsManager.getModifierSettings(player);
+        modifierSettings.getMirrorSettings().enabled = false;
+        modifierSettings.getRadialMirrorSettings().enabled = false;
+        modifierSettings.getArraySettings().enabled = false;
+        ModifierSettingsManager.setModifierSettings(player, modifierSettings);
+
+        ModifierSettingsManager.handleNewPlayer(player);
+        ModeSettingsManager.handleNewPlayer(player);
+
+        UndoRedo.clear(player);
+        PacketHandler.INSTANCE.send(PacketDistributor.PLAYER.with(() -> (ServerPlayerEntity) player), new ClearUndoMessage());
+    }
+
+    @SubscribeEvent
+    public static void onPlayerClone(PlayerEvent.Clone event) {
+        //Attach capabilities on death, otherwise crash
+        PlayerEntity oldPlayer = event.getOriginal();
+        oldPlayer.revive();
+
+        PlayerEntity newPlayer = event.getEntityPlayer();
+        ModifierSettingsManager.setModifierSettings(newPlayer, ModifierSettingsManager.getModifierSettings(oldPlayer));
+        ModeSettingsManager.setModeSettings(newPlayer, ModeSettingsManager.getModeSettings(oldPlayer));
+    }
 }

src/main/java/nl/requios/effortlessbuilding/Mirror.java

@@ -1,469 +0,0 @@
-package nl.requios.effortlessbuilding;
-
-import net.minecraft.block.*;
-import net.minecraft.block.state.IBlockState;
-import net.minecraft.client.Minecraft;
-import net.minecraft.client.renderer.BufferBuilder;
-import net.minecraft.client.renderer.Tessellator;
-import net.minecraft.client.renderer.vertex.DefaultVertexFormats;
-import net.minecraft.entity.player.EntityPlayer;
-import net.minecraft.item.ItemStack;
-import net.minecraft.util.EnumFacing;
-import net.minecraft.util.EnumHand;
-import net.minecraft.util.math.BlockPos;
-import net.minecraft.util.math.Vec3d;
-import net.minecraft.world.World;
-import net.minecraftforge.client.event.RenderWorldLastEvent;
-import net.minecraftforge.common.util.BlockSnapshot;
-import net.minecraftforge.event.world.BlockEvent;
-import net.minecraftforge.fml.common.Mod;
-import net.minecraftforge.fml.common.eventhandler.SubscribeEvent;
-import net.minecraftforge.fml.relauncher.Side;
-import net.minecraftforge.fml.relauncher.SideOnly;
-import net.minecraftforge.items.IItemHandler;
-import nl.requios.effortlessbuilding.item.ItemRandomizerBag;
-import org.lwjgl.opengl.GL11;
-import org.lwjgl.util.Color;
-
-@Mod.EventBusSubscriber
-public class Mirror {
-
-    //TODO config file
-    public static final int MAX_RADIUS = 200;
-
-    private static final Color colorX = new Color(255, 72, 52);
-    private static final Color colorY = new Color(67, 204, 51);
-    private static final Color colorZ = new Color(52, 247, 255);
-    private static final int lineAlpha = 200;
-    private static final int planeAlpha = 75;
-    private static final Vec3d epsilon = new Vec3d(0.001, 0.001, 0.001); //prevents z-fighting
-
-
-    public static class MirrorSettings {
-        public boolean enabled = false;
-        public Vec3d position = new Vec3d(0.5, 64.5, 0.5);
-        public boolean mirrorX = true, mirrorY = false, mirrorZ = false;
-        public int radius = 20;
-        public boolean drawLines = true, drawPlanes = false;
-
-        public MirrorSettings() {
-        }
-
-        public MirrorSettings(boolean mirrorEnabled, Vec3d position, boolean mirrorX, boolean mirrorY, boolean mirrorZ, int radius, boolean drawLines, boolean drawPlanes) {
-            this.enabled = mirrorEnabled;
-            this.position = position;
-            this.mirrorX = mirrorX;
-            this.mirrorY = mirrorY;
-            this.mirrorZ = mirrorZ;
-            this.radius = radius;
-            this.drawLines = drawLines;
-            this.drawPlanes = drawPlanes;
-        }
-    }
-
-    //Called from EventHandler
-    public static void onBlockPlaced(BlockEvent.PlaceEvent event) {
-        if (event.getWorld().isRemote) return;
-
-        //find mirrorsettings for the player that placed the block
-        MirrorSettings m = BuildSettingsManager.getBuildSettings(event.getPlayer()).getMirrorSettings();
-        if (m == null) return;
-
-        if (!m.enabled || (!m.mirrorX && !m.mirrorY && !m.mirrorZ)) return;
-
-        //if within mirror distance, mirror
-        BlockPos oldBlockPos = event.getPos();
-
-        if (oldBlockPos.getX() + 0.5 < m.position.x - m.radius || oldBlockPos.getX() + 0.5 > m.position.x + m.radius ||
-                oldBlockPos.getY() + 0.5 < m.position.y - m.radius || oldBlockPos.getY() + 0.5 > m.position.y + m.radius ||
-                oldBlockPos.getZ() + 0.5 < m.position.z - m.radius || oldBlockPos.getZ() + 0.5 > m.position.z + m.radius)
-            return;
-
-        //Randomizer bag synergy
-        IItemHandler bagInventory = null;
-        if (event.getPlayer().getHeldItem(event.getHand()).getItem() == EffortlessBuilding.ITEM_RANDOMIZER_BAG) {
-            bagInventory = ItemRandomizerBag.getBagInventory(event.getPlayer().getHeldItem(EnumHand.MAIN_HAND));
-        }
-
-        if (m.mirrorX) {
-            placeMirrorX(event.getWorld(), event.getPlayer(), m, event.getPos(), event.getPlacedBlock(), bagInventory);
-        }
-
-        if (m.mirrorY) {
-            placeMirrorY(event.getWorld(), event.getPlayer(), m, oldBlockPos, event.getPlacedBlock(), bagInventory);
-        }
-
-        if (m.mirrorZ) {
-            placeMirrorZ(event.getWorld(), event.getPlayer(), m, oldBlockPos, event.getPlacedBlock(), bagInventory);
-        }
-    }
-
-    private static IBlockState getBlockStateFromRandomizerBag(IItemHandler bagInventory, World world, EntityPlayer player, BlockPos pos) {
-        int randomSlot = ItemRandomizerBag.pickRandomSlot(bagInventory);
-        ItemStack stack = bagInventory.getStackInSlot(randomSlot);
-        //TODO get facing from getPlacedAgainst and getPlacedBlock
-        return Block.getBlockFromItem(stack.getItem()).getStateForPlacement(world, pos, EnumFacing.NORTH, 0, 0, 0, stack.getMetadata(), player, EnumHand.MAIN_HAND);
-    }
-
-    private static void placeMirrorX(World world, EntityPlayer player, MirrorSettings m, BlockPos oldBlockPos, IBlockState oldBlockState, IItemHandler bagInventory) {
-        //find mirror position
-        double x = m.position.x + (m.position.x - oldBlockPos.getX() - 0.5);
-        BlockPos newBlockPos = new BlockPos(x, oldBlockPos.getY(), oldBlockPos.getZ());
-
-        //Randomizer bag synergy
-        if (bagInventory != null)
-            oldBlockState = getBlockStateFromRandomizerBag(bagInventory, world, player, oldBlockPos);
-
-        IBlockState newBlockState = oldBlockState.withMirror(net.minecraft.util.Mirror.FRONT_BACK);
-        //place block
-        if (world.isBlockLoaded(newBlockPos, true)) {
-            placeBlock(world, player, newBlockPos, newBlockState);
-        }
-        if (m.mirrorY) placeMirrorY(world, player, m, newBlockPos, newBlockState, bagInventory);
-        if (m.mirrorZ) placeMirrorZ(world, player, m, newBlockPos, newBlockState, bagInventory);
-    }
-
-    private static void placeMirrorY(World world, EntityPlayer player, MirrorSettings m, BlockPos oldBlockPos, IBlockState oldBlockState, IItemHandler bagInventory) {
-        //find mirror position
-        double y = m.position.y + (m.position.y - oldBlockPos.getY() - 0.5);
-        BlockPos newBlockPos = new BlockPos(oldBlockPos.getX(), y, oldBlockPos.getZ());
-
-        //Randomizer bag synergy
-        if (bagInventory != null)
-            oldBlockState = getBlockStateFromRandomizerBag(bagInventory, world, player, oldBlockPos);
-
-        IBlockState newBlockState = getVerticalMirror(oldBlockState);
-        //place block
-        if (world.isBlockLoaded(newBlockPos, true)) {
-            placeBlock(world, player, newBlockPos, newBlockState);
-        }
-        if (m.mirrorZ) placeMirrorZ(world, player, m, newBlockPos, newBlockState, bagInventory);
-    }
-
-    private static void placeMirrorZ(World world, EntityPlayer player, MirrorSettings m, BlockPos oldBlockPos, IBlockState oldBlockState, IItemHandler bagInventory) {
-        //find mirror position
-        double z = m.position.z + (m.position.z - oldBlockPos.getZ() - 0.5);
-        BlockPos newBlockPos = new BlockPos(oldBlockPos.getX(), oldBlockPos.getY(), z);
-
-        //Randomizer bag synergy
-        if (bagInventory != null)
-            oldBlockState = getBlockStateFromRandomizerBag(bagInventory, world, player, oldBlockPos);
-
-        IBlockState newBlockState = oldBlockState.withMirror(net.minecraft.util.Mirror.LEFT_RIGHT);
-        //place block
-        if (world.isBlockLoaded(newBlockPos, true)) {
-            placeBlock(world, player, newBlockPos, newBlockState);
-        }
-    }
-
-    private static void placeBlock(World world, EntityPlayer player, BlockPos newBlockPos, IBlockState newBlockState) {
-        //Check itemstack
-        ItemStack itemStack = player.getHeldItem(player.swingingHand); //TODO check hand
-        if (itemStack.isEmpty()) return;
-
-        //TODO check if can place
-        //TODO check if can break
-
-        SurvivalHelper.dropBlock(world, newBlockPos, player);
-        world.setBlockState(newBlockPos, newBlockState);
-
-        //Check if held block = placed block (otherwise its a bag or wand)
-        if (!player.isCreative() && Block.getBlockFromItem(itemStack.getItem()) == newBlockState.getBlock()) {
-            itemStack.shrink(1);
-        }
-
-        //Array synergy
-        BlockSnapshot blockSnapshot = new BlockSnapshot(world, newBlockPos, newBlockState);
-        BlockEvent.PlaceEvent placeEvent = new BlockEvent.PlaceEvent(blockSnapshot, newBlockState, player, EnumHand.MAIN_HAND);
-        Array.onBlockPlaced(placeEvent);
-    }
-
-    private static IBlockState getVerticalMirror(IBlockState blockState) {
-        //Stairs
-        if (blockState.getBlock() instanceof BlockStairs) {
-            if (blockState.getValue(BlockStairs.HALF) == BlockStairs.EnumHalf.BOTTOM) {
-                return blockState.withProperty(BlockStairs.HALF, BlockStairs.EnumHalf.TOP);
-            } else {
-                return blockState.withProperty(BlockStairs.HALF, BlockStairs.EnumHalf.BOTTOM);
-            }
-        }
-
-        //Slabs
-        if (blockState.getBlock() instanceof BlockSlab) {
-            if (((BlockSlab) blockState.getBlock()).isDouble()) return blockState;
-            if (blockState.getValue(BlockSlab.HALF) == BlockSlab.EnumBlockHalf.BOTTOM) {
-                return blockState.withProperty(BlockSlab.HALF, BlockSlab.EnumBlockHalf.TOP);
-            } else {
-                return blockState.withProperty(BlockSlab.HALF, BlockSlab.EnumBlockHalf.BOTTOM);
-            }
-        }
-
-        //Buttons, endrod, observer, piston
-        if (blockState.getBlock() instanceof BlockDirectional) {
-            if (blockState.getValue(BlockDirectional.FACING) == EnumFacing.DOWN) {
-                return blockState.withProperty(BlockDirectional.FACING, EnumFacing.UP);
-            } else if (blockState.getValue(BlockDirectional.FACING) == EnumFacing.UP) {
-                return blockState.withProperty(BlockDirectional.FACING, EnumFacing.DOWN);
-            }
-        }
-
-        //Dispenser, dropper
-        if (blockState.getBlock() instanceof BlockDispenser) {
-            if (blockState.getValue(BlockDispenser.FACING) == EnumFacing.DOWN) {
-                return blockState.withProperty(BlockDispenser.FACING, EnumFacing.UP);
-            } else if (blockState.getValue(BlockDispenser.FACING) == EnumFacing.UP) {
-                return blockState.withProperty(BlockDispenser.FACING, EnumFacing.DOWN);
-            }
-        }
-
-        return blockState;
-    }
-
-    //Called from EventHandler
-    public static void onBlockBroken(BlockEvent.BreakEvent event) {
-        if (event.getWorld().isRemote) return;
-
-        //find mirrorsettings for the player that broke the block
-        MirrorSettings m = BuildSettingsManager.getBuildSettings(event.getPlayer()).getMirrorSettings();
-        if (m == null) return;
-
-        if (!m.enabled || (!m.mirrorX && !m.mirrorY && !m.mirrorZ)) return;
-
-        //if within mirror distance, break mirror block
-        BlockPos oldBlockPos = event.getPos();
-
-        if (oldBlockPos.getX() + 0.5 < m.position.x - m.radius || oldBlockPos.getX() + 0.5 > m.position.x + m.radius ||
-                oldBlockPos.getY() + 0.5 < m.position.y - m.radius || oldBlockPos.getY() + 0.5 > m.position.y + m.radius ||
-                oldBlockPos.getZ() + 0.5 < m.position.z - m.radius || oldBlockPos.getZ() + 0.5 > m.position.z + m.radius)
-            return;
-
-        if (m.mirrorX) {
-            breakMirrorX(event, m, oldBlockPos);
-        }
-
-        if (m.mirrorY) {
-            breakMirrorY(event, m, oldBlockPos);
-        }
-
-        if (m.mirrorZ) {
-            breakMirrorZ(event, m, oldBlockPos);
-        }
-    }
-
-    private static void breakMirrorX(BlockEvent.BreakEvent event, MirrorSettings m, BlockPos oldBlockPos) {
-        //find mirror position
-        double x = m.position.x + (m.position.x - oldBlockPos.getX() - 0.5);
-        BlockPos newBlockPos = new BlockPos(x, oldBlockPos.getY(), oldBlockPos.getZ());
-        //break block
-        if (event.getWorld().isBlockLoaded(newBlockPos, true)) {
-            breakBlock(event, newBlockPos);
-        }
-        if (m.mirrorY) breakMirrorY(event, m, newBlockPos);
-        if (m.mirrorZ) breakMirrorZ(event, m, newBlockPos);
-    }
-
-    private static void breakMirrorY(BlockEvent.BreakEvent event, MirrorSettings m, BlockPos oldBlockPos) {
-        //find mirror position
-        double y = m.position.y + (m.position.y - oldBlockPos.getY() - 0.5);
-        BlockPos newBlockPos = new BlockPos(oldBlockPos.getX(), y, oldBlockPos.getZ());
-        //place block
-        if (event.getWorld().isBlockLoaded(newBlockPos, true)) {
-            breakBlock(event, newBlockPos);
-        }
-        if (m.mirrorZ) breakMirrorZ(event, m, newBlockPos);
-    }
-
-    private static void breakMirrorZ(BlockEvent.BreakEvent event, MirrorSettings m, BlockPos oldBlockPos) {
-        //find mirror position
-        double z = m.position.z + (m.position.z - oldBlockPos.getZ() - 0.5);
-        BlockPos newBlockPos = new BlockPos(oldBlockPos.getX(), oldBlockPos.getY(), z);
-        //place block
-        if (event.getWorld().isBlockLoaded(newBlockPos, true)) {
-            breakBlock(event, newBlockPos);
-        }
-    }
-
-    private static void breakBlock(BlockEvent.BreakEvent event, BlockPos newBlockPos) {
-        //TODO check if can break
-
-        SurvivalHelper.dropBlock(event.getWorld(), newBlockPos, event.getPlayer());
-        event.getWorld().setBlockToAir(newBlockPos);
-
-        //Array synergy
-        BlockEvent.BreakEvent breakEvent = new BlockEvent.BreakEvent(event.getWorld(), newBlockPos, event.getState(), event.getPlayer());
-        Array.onBlockBroken(breakEvent);
-    }
-
-    @SubscribeEvent
-    @SideOnly(Side.CLIENT)
-    public static void onRender(RenderWorldLastEvent event) {
-        EntityPlayer player = Minecraft.getMinecraft().player;
-        BuildSettingsManager.BuildSettings buildSettings = BuildSettingsManager.getBuildSettings(player);
-        if (buildSettings == null) return;
-        MirrorSettings m = buildSettings.getMirrorSettings();
-
-        if (m == null || !m.enabled || (!m.mirrorX && !m.mirrorY && !m.mirrorZ)) return;
-
-        Vec3d playerPos = new Vec3d(player.posX, player.posY, player.posZ);
-        Vec3d pos = m.position.add(epsilon);
-        int radius = m.radius;
-
-        if (m.mirrorX) {
-            Vec3d posA = new Vec3d(pos.x, pos.y - radius, pos.z - radius);
-            Vec3d posB = new Vec3d(pos.x, pos.y + radius, pos.z + radius);
-
-            drawMirrorPlane(playerPos, posA, posB, colorX, m.drawLines, m.drawPlanes);
-        }
-        if (m.mirrorY) {
-            Vec3d posA = new Vec3d(pos.x - radius, pos.y, pos.z - radius);
-            Vec3d posB = new Vec3d(pos.x + radius, pos.y, pos.z + radius);
-
-            drawMirrorPlaneY(playerPos, posA, posB, colorY, m.drawLines, m.drawPlanes);
-        }
-        if (m.mirrorZ) {
-            Vec3d posA = new Vec3d(pos.x - radius, pos.y - radius, pos.z);
-            Vec3d posB = new Vec3d(pos.x + radius, pos.y + radius, pos.z);
-
-            drawMirrorPlane(playerPos, posA, posB, colorZ, m.drawLines, m.drawPlanes);
-        }
-
-        //Draw axis coordinated colors if two or more axes are enabled
-        //(If only one is enabled the lines are that planes color)
-        if (m.drawLines && ((m.mirrorX && m.mirrorY) || (m.mirrorX && m.mirrorZ) || (m.mirrorY && m.mirrorZ))) {
-            drawMirrorLines(playerPos, m);
-        }
-    }
-
-    @SideOnly(Side.CLIENT)
-    public static void drawMirrorPlane(Vec3d playerPos, Vec3d posA, Vec3d posB, Color c, boolean drawLines, boolean drawPlanes) {
-
-        GL11.glPushAttrib(GL11.GL_ENABLE_BIT);
-        GL11.glPushMatrix();
-        GL11.glDisable(GL11.GL_CULL_FACE);
-        GL11.glDisable(GL11.GL_LIGHTING);
-        GL11.glDisable(GL11.GL_TEXTURE_2D);
-
-        GL11.glEnable(GL11.GL_BLEND);
-        GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);
-        GL11.glTranslated(-playerPos.x, -playerPos.y, -playerPos.z);
-
-        GL11.glColor4d(c.getRed(), c.getGreen(), c.getBlue(), planeAlpha);
-        GL11.glLineWidth(2);
-        GL11.glDepthMask(false);
-        Tessellator tessellator = Tessellator.getInstance();
-        BufferBuilder bufferBuilder = tessellator.getBuffer();
-
-        if (drawPlanes) {
-            bufferBuilder.begin(GL11.GL_TRIANGLE_STRIP, DefaultVertexFormats.POSITION_COLOR);
-
-            bufferBuilder.pos(posA.x, posA.y, posA.z).color(c.getRed(), c.getGreen(), c.getBlue(), planeAlpha).endVertex();
-            bufferBuilder.pos(posA.x, posB.y, posA.z).color(c.getRed(), c.getGreen(), c.getBlue(), planeAlpha).endVertex();
-            bufferBuilder.pos(posB.x, posA.y, posB.z).color(c.getRed(), c.getGreen(), c.getBlue(), planeAlpha).endVertex();
-            bufferBuilder.pos(posB.x, posB.y, posB.z).color(c.getRed(), c.getGreen(), c.getBlue(), planeAlpha).endVertex();
-
-            tessellator.draw();
-        }
-
-        if (drawLines) {
-            Vec3d middle = posA.add(posB).scale(0.5);
-            bufferBuilder.begin(GL11.GL_LINES, DefaultVertexFormats.POSITION_COLOR);
-
-            bufferBuilder.pos(posA.x, middle.y, posA.z).color(c.getRed(), c.getGreen(), c.getBlue(), lineAlpha).endVertex();
-            bufferBuilder.pos(posB.x, middle.y, posB.z).color(c.getRed(), c.getGreen(), c.getBlue(), lineAlpha).endVertex();
-            bufferBuilder.pos(middle.x, posA.y, middle.z).color(c.getRed(), c.getGreen(), c.getBlue(), lineAlpha).endVertex();
-            bufferBuilder.pos(middle.x, posB.y, middle.z).color(c.getRed(), c.getGreen(), c.getBlue(), lineAlpha).endVertex();
-
-            tessellator.draw();
-        }
-
-        GL11.glDepthMask(true);
-        GL11.glPopMatrix();
-        GL11.glPopAttrib();
-    }
-
-    @SideOnly(Side.CLIENT)
-    public static void drawMirrorPlaneY(Vec3d playerPos, Vec3d posA, Vec3d posB, Color c, boolean drawLines, boolean drawPlanes) {
-
-        GL11.glPushAttrib(GL11.GL_ENABLE_BIT);
-        GL11.glPushMatrix();
-        GL11.glDisable(GL11.GL_CULL_FACE);
-        GL11.glDisable(GL11.GL_LIGHTING);
-        GL11.glDisable(GL11.GL_TEXTURE_2D);
-
-        GL11.glEnable(GL11.GL_BLEND);
-        GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);
-        GL11.glTranslated(-playerPos.x, -playerPos.y, -playerPos.z);
-
-        GL11.glColor4d(c.getRed(), c.getGreen(), c.getBlue(), c.getAlpha());
-        GL11.glLineWidth(2);
-        GL11.glDepthMask(false);
-        Tessellator tessellator = Tessellator.getInstance();
-        BufferBuilder bufferBuilder = tessellator.getBuffer();
-
-        if (drawPlanes) {
-            bufferBuilder.begin(GL11.GL_TRIANGLE_STRIP, DefaultVertexFormats.POSITION_COLOR);
-
-            bufferBuilder.pos(posA.x, posA.y, posA.z).color(c.getRed(), c.getGreen(), c.getBlue(), planeAlpha).endVertex();
-            bufferBuilder.pos(posA.x, posA.y, posB.z).color(c.getRed(), c.getGreen(), c.getBlue(), planeAlpha).endVertex();
-            bufferBuilder.pos(posB.x, posA.y, posA.z).color(c.getRed(), c.getGreen(), c.getBlue(), planeAlpha).endVertex();
-            bufferBuilder.pos(posB.x, posA.y, posB.z).color(c.getRed(), c.getGreen(), c.getBlue(), planeAlpha).endVertex();
-
-            tessellator.draw();
-        }
-
-        if (drawLines) {
-            Vec3d middle = posA.add(posB).scale(0.5);
-            bufferBuilder.begin(GL11.GL_LINES, DefaultVertexFormats.POSITION_COLOR);
-
-            bufferBuilder.pos(middle.x, middle.y, posA.z).color(c.getRed(), c.getGreen(), c.getBlue(), lineAlpha).endVertex();
-            bufferBuilder.pos(middle.x, middle.y, posB.z).color(c.getRed(), c.getGreen(), c.getBlue(), lineAlpha).endVertex();
-            bufferBuilder.pos(posA.x, middle.y, middle.z).color(c.getRed(), c.getGreen(), c.getBlue(), lineAlpha).endVertex();
-            bufferBuilder.pos(posB.x, middle.y, middle.z).color(c.getRed(), c.getGreen(), c.getBlue(), lineAlpha).endVertex();
-
-            tessellator.draw();
-        }
-
-        GL11.glDepthMask(true);
-        GL11.glPopMatrix();
-        GL11.glPopAttrib();
-    }
-
-    @SideOnly(Side.CLIENT)
-    public static void drawMirrorLines(Vec3d playerPos, MirrorSettings m) {
-
-        Vec3d pos = m.position.add(epsilon);
-
-        GL11.glPushAttrib(GL11.GL_ENABLE_BIT);
-        GL11.glPushMatrix();
-        GL11.glDisable(GL11.GL_CULL_FACE);
-        GL11.glDisable(GL11.GL_LIGHTING);
-        GL11.glDisable(GL11.GL_TEXTURE_2D);
-
-        GL11.glEnable(GL11.GL_BLEND);
-        GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);
-        GL11.glTranslated(-playerPos.x, -playerPos.y, -playerPos.z);
-
-        GL11.glColor4d(100, 100, 100, 255);
-        GL11.glLineWidth(2);
-        GL11.glDepthMask(false);
-        Tessellator tessellator = Tessellator.getInstance();
-        BufferBuilder bufferBuilder = tessellator.getBuffer();
-
-        bufferBuilder.begin(GL11.GL_LINES, DefaultVertexFormats.POSITION_COLOR);
-
-        bufferBuilder.pos(pos.x - m.radius, pos.y, pos.z).color(colorZ.getRed(), colorZ.getGreen(), colorZ.getBlue(), lineAlpha).endVertex();
-        bufferBuilder.pos(pos.x + m.radius, pos.y, pos.z).color(colorZ.getRed(), colorZ.getGreen(), colorZ.getBlue(), lineAlpha).endVertex();
-        bufferBuilder.pos(pos.x, pos.y - m.radius, pos.z).color(colorY.getRed(), colorY.getGreen(), colorY.getBlue(), lineAlpha).endVertex();
-        bufferBuilder.pos(pos.x, pos.y + m.radius, pos.z).color(colorY.getRed(), colorY.getGreen(), colorY.getBlue(), lineAlpha).endVertex();
-        bufferBuilder.pos(pos.x, pos.y, pos.z - m.radius).color(colorX.getRed(), colorX.getGreen(), colorX.getBlue(), lineAlpha).endVertex();
-        bufferBuilder.pos(pos.x, pos.y, pos.z + m.radius).color(colorX.getRed(), colorX.getGreen(), colorX.getBlue(), lineAlpha).endVertex();
-
-        tessellator.draw();
-
-        GL11.glDepthMask(true);
-        GL11.glPopMatrix();
-        GL11.glPopAttrib();
-    }
-
-
-}

src/main/java/nl/requios/effortlessbuilding/ModClientEventHandler.java

@@ -0,0 +1,46 @@
+package nl.requios.effortlessbuilding;
+
+import net.minecraft.client.Minecraft;
+import net.minecraft.client.renderer.texture.TextureAtlasSprite;
+import net.minecraft.util.ResourceLocation;
+import net.minecraftforge.api.distmarker.Dist;
+import net.minecraftforge.client.event.TextureStitchEvent;
+import net.minecraftforge.eventbus.api.SubscribeEvent;
+import net.minecraftforge.fml.common.Mod;
+import nl.requios.effortlessbuilding.buildmode.BuildModes;
+import nl.requios.effortlessbuilding.buildmode.ModeOptions;
+
+import java.util.HashMap;
+
+@Mod.EventBusSubscriber(bus=Mod.EventBusSubscriber.Bus.MOD, value = {Dist.CLIENT})
+public class ModClientEventHandler {
+
+    private static final HashMap<BuildModes.BuildModeEnum, ResourceLocation> buildModeIcons = new HashMap<>();
+    private static final HashMap<ModeOptions.ActionEnum, ResourceLocation> modeOptionIcons = new HashMap<>();
+
+    @SubscribeEvent
+    public static void onTextureStitch(final TextureStitchEvent.Pre event) {
+        //register icon textures
+        for (final BuildModes.BuildModeEnum mode : BuildModes.BuildModeEnum.values())
+        {
+            final ResourceLocation spriteLocation = new ResourceLocation(EffortlessBuilding.MODID, "icons/" + mode.name().toLowerCase());
+            event.addSprite(spriteLocation);
+            buildModeIcons.put(mode, spriteLocation);
+        }
+
+        for (final ModeOptions.ActionEnum action : ModeOptions.ActionEnum.values())
+        {
+            final ResourceLocation spriteLocation = new ResourceLocation(EffortlessBuilding.MODID, "icons/" + action.name().toLowerCase());
+            event.addSprite(spriteLocation);
+            modeOptionIcons.put(action, spriteLocation);
+        }
+    }
+
+    public static TextureAtlasSprite getBuildModeIcon(BuildModes.BuildModeEnum mode) {
+        return Minecraft.getInstance().getTextureMap().getSprite(buildModeIcons.get(mode));
+    }
+
+    public static TextureAtlasSprite getModeOptionIcon(ModeOptions.ActionEnum action) {
+        return Minecraft.getInstance().getTextureMap().getSprite(modeOptionIcons.get(action));
+    }
+}

src/main/java/nl/requios/effortlessbuilding/ModEventHandler.java

@@ -0,0 +1,45 @@
+package nl.requios.effortlessbuilding;
+
+import net.minecraft.block.Block;
+import net.minecraft.client.Minecraft;
+import net.minecraft.client.renderer.texture.TextureAtlasSprite;
+import net.minecraft.item.BlockItem;
+import net.minecraft.item.Item;
+import net.minecraft.util.ResourceLocation;
+import net.minecraftforge.api.distmarker.Dist;
+import net.minecraftforge.client.event.TextureStitchEvent;
+import net.minecraftforge.event.RegistryEvent;
+import net.minecraftforge.eventbus.api.SubscribeEvent;
+import net.minecraftforge.fml.common.Mod;
+import nl.requios.effortlessbuilding.buildmode.BuildModes;
+import nl.requios.effortlessbuilding.buildmode.ModeOptions;
+
+import java.util.HashMap;
+
+// You can use EventBusSubscriber to automatically subscribe events on the contained class (this is subscribing to the MOD
+// Event bus for receiving Registry Events)
+@Mod.EventBusSubscriber(bus=Mod.EventBusSubscriber.Bus.MOD)
+public class ModEventHandler {
+
+    @SubscribeEvent
+    public static void registerBlocks(RegistryEvent.Register<Block> event) {
+        event.getRegistry().registerAll(EffortlessBuilding.BLOCKS);
+    }
+
+    @SubscribeEvent
+    public static void registerItems(RegistryEvent.Register<Item> event) {
+        event.getRegistry().registerAll(EffortlessBuilding.ITEMS);
+
+        for (Block block : EffortlessBuilding.BLOCKS)
+        {
+            event.getRegistry().register(new BlockItem(block, new Item.Properties()).setRegistryName(block.getRegistryName()));
+        }
+    }
+
+//    @SubscribeEvent
+//    public static void registerContainerTypes(RegistryEvent.Register<ContainerType<?>> event) {
+//        event.getRegistry().register()
+//    }
+
+
+}

src/main/java/nl/requios/effortlessbuilding/QuickReplace.java

@@ -1,76 +0,0 @@
-package nl.requios.effortlessbuilding;
-
-import net.minecraft.block.Block;
-import net.minecraft.block.state.IBlockState;
-import net.minecraft.entity.player.EntityPlayer;
-import net.minecraft.entity.player.EntityPlayerMP;
-import net.minecraft.item.ItemStack;
-import net.minecraft.util.EnumHand;
-import net.minecraft.util.math.BlockPos;
-import net.minecraftforge.common.util.BlockSnapshot;
-import net.minecraftforge.event.world.BlockEvent;
-import nl.requios.effortlessbuilding.network.QuickReplaceMessage;
-
-import java.util.Dictionary;
-import java.util.Hashtable;
-import java.util.UUID;
-
-public class QuickReplace {
-    //Dilemma in getting blockstate from event to when message is received:
-    // 1) send via client. Then hacking makes it possible to place any block.
-    // 2) save serverside. Messages may not be received chronologically so data could get switched.
-    //Solution for now: save blockstate per player. Messages from 1 player will rarely come unchronologically
-    //and players will rarely switch between blocks that quickly.
-
-    private static Dictionary<UUID, IBlockState> blockStates = new Hashtable<>();
-
-    public static void onBlockPlaced(BlockEvent.PlaceEvent event) {
-        if (event.getWorld().isRemote) return;
-        //Only serverside
-
-        BuildSettingsManager.BuildSettings buildSettings = BuildSettingsManager.getBuildSettings(event.getPlayer());
-        if (!buildSettings.doQuickReplace()) return;
-
-        //TODO base on player facing instead, no more messages (or break block clientside)
-
-        blockStates.put(event.getPlayer().getUniqueID(), event.getPlacedBlock());
-
-        //RayTraceResult result = event.getWorld().rayTraceBlocks(event.getPlayer().getPositionEyes(1f), event.getPlayer().getLookVec());
-        EffortlessBuilding.packetHandler.sendTo(new QuickReplaceMessage(), (EntityPlayerMP) event.getPlayer());
-
-        event.setCanceled(true);
-    }
-
-    public static void onMessageReceived(EntityPlayer player, QuickReplaceMessage message) {
-        BuildSettingsManager.BuildSettings buildSettings = BuildSettingsManager.getBuildSettings(player);
-        if (!buildSettings.doQuickReplace()) return;
-
-        //TODO check for bedrock, end portal etc in survival
-
-        if (!message.isBlockHit() || message.getBlockPos() == null) return;
-
-        BlockPos placedAgainstBlockPos = message.getBlockPos();
-
-        //Get under tall grass and other replaceable blocks
-        if (player.world.getBlockState(placedAgainstBlockPos).getBlock().isReplaceable(player.world, placedAgainstBlockPos)) {
-            placedAgainstBlockPos = placedAgainstBlockPos.down();
-        }
-
-        IBlockState blockState = blockStates.get(player.getUniqueID());
-
-        SurvivalHelper.dropBlock(player.world, placedAgainstBlockPos, player);
-        player.world.setBlockState(placedAgainstBlockPos, blockState);
-
-        //Shrink itemstack with 1
-        ItemStack itemStack = player.getHeldItem(player.swingingHand); //TODO check hand
-        if (!player.isCreative() && Block.getBlockFromItem(itemStack.getItem()) == blockState.getBlock()) {
-            itemStack.shrink(1);
-        }
-
-        //Mirror and Array synergy
-        BlockSnapshot blockSnapshot = new BlockSnapshot(player.world, placedAgainstBlockPos, blockState);
-        BlockEvent.PlaceEvent placeEvent = new BlockEvent.PlaceEvent(blockSnapshot, blockState, player, EnumHand.MAIN_HAND);
-        Mirror.onBlockPlaced(placeEvent);
-        Array.onBlockPlaced(placeEvent);
-    }
-}

src/main/java/nl/requios/effortlessbuilding/SurvivalHelper.java

@@ -1,35 +0,0 @@
-package nl.requios.effortlessbuilding;
-
-import net.minecraft.block.Block;
-import net.minecraft.block.state.IBlockState;
-import net.minecraft.entity.player.EntityPlayer;
-import net.minecraft.item.ItemStack;
-import net.minecraft.util.math.BlockPos;
-import net.minecraft.world.World;
-import net.minecraftforge.items.ItemHandlerHelper;
-
-import java.util.List;
-
-public class SurvivalHelper {
-
-    public static boolean canBreak(){
-        return true;
-    }
-
-    public static boolean canPlace(){
-        return true;
-    }
-
-    //Gives items directly to player
-    public static void dropBlock(World world, BlockPos pos, EntityPlayer player){
-        if (player.isCreative()) return;
-
-        IBlockState blockState = world.getBlockState(pos);
-
-        List<ItemStack> drops = blockState.getBlock().getDrops(world, pos, blockState, 0);
-        for (ItemStack drop : drops)
-        {
-            ItemHandlerHelper.giveItemToPlayer(player, drop);
-        }
-    }
-}

src/main/java/nl/requios/effortlessbuilding/buildmode/BaseBuildMode.java

@@ -0,0 +1,39 @@
+package nl.requios.effortlessbuilding.buildmode;
+
+import net.minecraft.entity.player.PlayerEntity;
+import net.minecraft.util.Direction;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.math.Vec3d;
+
+import java.util.Dictionary;
+import java.util.Hashtable;
+import java.util.UUID;
+
+public abstract class BaseBuildMode implements IBuildMode {
+    //In singleplayer client and server variables are shared
+    //Split everything that needs separate values and may not be called twice in one click
+    protected Dictionary<UUID, Integer> rightClickClientTable = new Hashtable<>();
+    protected Dictionary<UUID, Integer> rightClickServerTable = new Hashtable<>();
+    protected Dictionary<UUID, BlockPos> firstPosTable = new Hashtable<>();
+    protected Dictionary<UUID, Direction> sideHitTable = new Hashtable<>();
+    protected Dictionary<UUID, Vec3d> hitVecTable = new Hashtable<>();
+
+    @Override
+    public void initialize(PlayerEntity player) {
+        rightClickClientTable.put(player.getUniqueID(), 0);
+        rightClickServerTable.put(player.getUniqueID(), 0);
+        firstPosTable.put(player.getUniqueID(), BlockPos.ZERO);
+        sideHitTable.put(player.getUniqueID(), Direction.UP);
+        hitVecTable.put(player.getUniqueID(), Vec3d.ZERO);
+    }
+
+    @Override
+    public Direction getSideHit(PlayerEntity player) {
+        return sideHitTable.get(player.getUniqueID());
+    }
+
+    @Override
+    public Vec3d getHitVec(PlayerEntity player) {
+        return hitVecTable.get(player.getUniqueID());
+    }
+}

src/main/java/nl/requios/effortlessbuilding/buildmode/BuildModes.java

@@ -0,0 +1,271 @@
+package nl.requios.effortlessbuilding.buildmode;
+
+import net.minecraft.entity.player.PlayerEntity;
+import net.minecraft.util.Direction;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.math.RayTraceContext;
+import net.minecraft.util.math.RayTraceResult;
+import net.minecraft.util.math.Vec3d;
+import nl.requios.effortlessbuilding.EffortlessBuilding;
+import nl.requios.effortlessbuilding.buildmode.buildmodes.*;
+import nl.requios.effortlessbuilding.buildmodifier.BuildModifiers;
+import nl.requios.effortlessbuilding.buildmodifier.ModifierSettingsManager;
+import nl.requios.effortlessbuilding.helper.ReachHelper;
+import nl.requios.effortlessbuilding.helper.SurvivalHelper;
+import nl.requios.effortlessbuilding.network.BlockBrokenMessage;
+import nl.requios.effortlessbuilding.network.BlockPlacedMessage;
+
+import java.util.ArrayList;
+import java.util.Dictionary;
+import java.util.Hashtable;
+import java.util.List;
+
+import static nl.requios.effortlessbuilding.buildmode.ModeOptions.*;
+
+public class BuildModes {
+
+    //Static variables are shared between client and server in singleplayer
+    //We need them separate
+    public static Dictionary<PlayerEntity, Boolean> currentlyBreakingClient = new Hashtable<>();
+    public static Dictionary<PlayerEntity, Boolean> currentlyBreakingServer = new Hashtable<>();
+
+    public enum BuildModeEnum {
+        NORMAL("effortlessbuilding.mode.normal", new Normal()),
+        NORMAL_PLUS("effortlessbuilding.mode.normal_plus", new NormalPlus(), OptionEnum.BUILD_SPEED),
+        LINE("effortlessbuilding.mode.line", new Line() /*, OptionEnum.THICKNESS*/),
+        WALL("effortlessbuilding.mode.wall", new Wall(), OptionEnum.FILL),
+        FLOOR("effortlessbuilding.mode.floor", new Floor(), OptionEnum.FILL),
+        DIAGONAL_LINE("effortlessbuilding.mode.diagonal_line", new DiagonalLine() /*, OptionEnum.THICKNESS*/),
+        DIAGONAL_WALL("effortlessbuilding.mode.diagonal_wall", new DiagonalWall() /*, OptionEnum.FILL*/),
+        SLOPE_FLOOR("effortlessbuilding.mode.slope_floor", new SlopeFloor(), OptionEnum.RAISED_EDGE),
+        CIRCLE("effortlessbuilding.mode.circle", new Circle(), OptionEnum.CIRCLE_START, OptionEnum.FILL),
+        CYLINDER("effortlessbuilding.mode.cylinder", new Cylinder(), OptionEnum.CIRCLE_START, OptionEnum.FILL),
+        SPHERE("effortlessbuilding.mode.sphere", new Sphere(), OptionEnum.CIRCLE_START, OptionEnum.FILL),
+        CUBE("effortlessbuilding.mode.cube", new Cube(), OptionEnum.CUBE_FILL);
+
+        public String name;
+        public IBuildMode instance;
+        public OptionEnum[] options;
+
+        BuildModeEnum(String name, IBuildMode instance, OptionEnum... options) {
+            this.name = name;
+            this.instance = instance;
+            this.options = options;
+        }
+    }
+
+    //Uses a network message to get the previous raytraceresult from the player
+    //The server could keep track of all raytraceresults but this might lag with many players
+    //Raytraceresult is needed for sideHit and hitVec
+    public static void onBlockPlacedMessage(PlayerEntity player, BlockPlacedMessage message) {
+
+        //Check if not in the middle of breaking
+        Dictionary<PlayerEntity, Boolean> currentlyBreaking = player.world.isRemote ? currentlyBreakingClient : currentlyBreakingServer;
+        if (currentlyBreaking.get(player) != null && currentlyBreaking.get(player)) {
+            //Cancel breaking
+            initializeMode(player);
+            return;
+        }
+
+        ModifierSettingsManager.ModifierSettings modifierSettings = ModifierSettingsManager.getModifierSettings(player);
+        ModeSettingsManager.ModeSettings modeSettings = ModeSettingsManager.getModeSettings(player);
+        BuildModeEnum buildMode = modeSettings.getBuildMode();
+
+        BlockPos startPos = null;
+
+        if (message.isBlockHit() && message.getBlockPos() != null) {
+            startPos = message.getBlockPos();
+
+            //Offset in direction of sidehit if not quickreplace and not replaceable
+            //TODO 1.13 replaceable
+            boolean replaceable = player.world.getBlockState(startPos).getMaterial().isReplaceable();
+            boolean becomesDoubleSlab = SurvivalHelper.doesBecomeDoubleSlab(player, startPos, message.getSideHit());
+            if (!modifierSettings.doQuickReplace() && !replaceable && !becomesDoubleSlab) {
+                startPos = startPos.offset(message.getSideHit());
+            }
+
+            //Get under tall grass and other replaceable blocks
+            if (modifierSettings.doQuickReplace() && replaceable) {
+                startPos = startPos.down();
+            }
+
+            //Check if player reach does not exceed startpos
+            int maxReach = ReachHelper.getMaxReach(player);
+            if (buildMode != BuildModeEnum.NORMAL && player.getPosition().distanceSq(startPos) > maxReach * maxReach) {
+                EffortlessBuilding.log(player, "Placement exceeds your reach.");
+                return;
+            }
+        }
+
+        //Even when no starting block is found, call buildmode instance
+        //We might want to place things in the air
+        List<BlockPos> coordinates = buildMode.instance.onRightClick(player, startPos, message.getSideHit(), message.getHitVec(), modifierSettings.doQuickReplace());
+
+        if (coordinates.isEmpty()) {
+            currentlyBreaking.put(player, false);
+            return;
+        }
+
+        //Limit number of blocks you can place
+        int limit = ReachHelper.getMaxBlocksPlacedAtOnce(player);
+        if (coordinates.size() > limit) {
+            coordinates = coordinates.subList(0, limit);
+        }
+
+        Direction sideHit = buildMode.instance.getSideHit(player);
+        if (sideHit == null) sideHit = message.getSideHit();
+
+        Vec3d hitVec = buildMode.instance.getHitVec(player);
+        if (hitVec == null) hitVec = message.getHitVec();
+
+        BuildModifiers.onBlockPlaced(player, coordinates, sideHit, hitVec, message.getPlaceStartPos());
+
+        //Only works when finishing a buildmode is equal to placing some blocks
+        //No intermediate blocks allowed
+        currentlyBreaking.remove(player);
+
+    }
+
+    //Use a network message to break blocks in the distance using clientside mouse input
+    public static void onBlockBrokenMessage(PlayerEntity player, BlockBrokenMessage message) {
+        BlockPos startPos = message.isBlockHit() ? message.getBlockPos() : null;
+        onBlockBroken(player, startPos, true);
+    }
+
+    public static void onBlockBroken(PlayerEntity player, BlockPos startPos, boolean breakStartPos) {
+
+        //Check if not in the middle of placing
+        Dictionary<PlayerEntity, Boolean> currentlyBreaking = player.world.isRemote ? currentlyBreakingClient : currentlyBreakingServer;
+        if (currentlyBreaking.get(player) != null && !currentlyBreaking.get(player)) {
+            //Cancel placing
+            initializeMode(player);
+            return;
+        }
+
+        //If first click
+        if (currentlyBreaking.get(player) == null) {
+            //If startpos is null, dont do anything
+            if (startPos == null) return;
+        }
+
+        ModifierSettingsManager.ModifierSettings modifierSettings = ModifierSettingsManager.getModifierSettings(player);
+        ModeSettingsManager.ModeSettings modeSettings = ModeSettingsManager.getModeSettings(player);
+
+        //Get coordinates
+        BuildModeEnum buildMode = modeSettings.getBuildMode();
+        List<BlockPos> coordinates = buildMode.instance.onRightClick(player, startPos, Direction.UP, Vec3d.ZERO, true);
+
+        if (coordinates.isEmpty()) {
+            currentlyBreaking.put(player, true);
+            return;
+        }
+
+        //Let buildmodifiers break blocks
+        BuildModifiers.onBlockBroken(player, coordinates, breakStartPos);
+
+        //Only works when finishing a buildmode is equal to breaking some blocks
+        //No intermediate blocks allowed
+        currentlyBreaking.remove(player);
+    }
+
+    public static List<BlockPos> findCoordinates(PlayerEntity player, BlockPos startPos, boolean skipRaytrace) {
+        List<BlockPos> coordinates = new ArrayList<>();
+
+        ModeSettingsManager.ModeSettings modeSettings = ModeSettingsManager.getModeSettings(player);
+        coordinates.addAll(modeSettings.getBuildMode().instance.findCoordinates(player, startPos, skipRaytrace));
+
+        return coordinates;
+    }
+
+    public static void initializeMode(PlayerEntity player) {
+        //Resetting mode, so not placing or breaking
+        Dictionary<PlayerEntity, Boolean> currentlyBreaking = player.world.isRemote ? currentlyBreakingClient : currentlyBreakingServer;
+        currentlyBreaking.remove(player);
+
+        ModeSettingsManager.getModeSettings(player).getBuildMode().instance.initialize(player);
+    }
+
+    public static boolean isCurrentlyPlacing(PlayerEntity player) {
+        Dictionary<PlayerEntity, Boolean> currentlyBreaking = player.world.isRemote ? currentlyBreakingClient : currentlyBreakingServer;
+        return currentlyBreaking.get(player) != null && !currentlyBreaking.get(player);
+    }
+
+    public static boolean isCurrentlyBreaking(PlayerEntity player) {
+        Dictionary<PlayerEntity, Boolean> currentlyBreaking = player.world.isRemote ? currentlyBreakingClient : currentlyBreakingServer;
+        return currentlyBreaking.get(player) != null && currentlyBreaking.get(player);
+    }
+
+    //Either placing or breaking
+    public static boolean isActive(PlayerEntity player) {
+        Dictionary<PlayerEntity, Boolean> currentlyBreaking = player.world.isRemote ? currentlyBreakingClient : currentlyBreakingServer;
+        return currentlyBreaking.get(player) != null;
+    }
+
+
+    //-- Common build mode functionality --//
+
+    //Find coordinates on a line bound by a plane
+    public static Vec3d findXBound(double x, Vec3d start, Vec3d look) {
+        //then y and z are
+        double y = (x - start.x) / look.x * look.y + start.y;
+        double z = (x - start.x) / look.x * look.z + start.z;
+
+        return new Vec3d(x, y, z);
+    }
+
+    public static Vec3d findYBound(double y, Vec3d start, Vec3d look) {
+        //then x and z are
+        double x = (y - start.y) / look.y * look.x + start.x;
+        double z = (y - start.y) / look.y * look.z + start.z;
+
+        return new Vec3d(x, y, z);
+    }
+
+    public static Vec3d findZBound(double z, Vec3d start, Vec3d look) {
+        //then x and y are
+        double x = (z - start.z) / look.z * look.x + start.x;
+        double y = (z - start.z) / look.z * look.y + start.y;
+
+        return new Vec3d(x, y, z);
+    }
+
+    //Use this instead of player.getLookVec() in any buildmodes code
+    public static Vec3d getPlayerLookVec(PlayerEntity player){
+        Vec3d lookVec = player.getLookVec();
+        double x = lookVec.x;
+        double y = lookVec.y;
+        double z = lookVec.z;
+
+        //Further calculations (findXBound etc) don't like any component being 0 or 1 (e.g. dividing by 0)
+        //isCriteriaValid below will take up to 2 minutes to raytrace blocks towards infinity if that is the case
+        //So make sure they are close to but never exactly 0 or 1
+        if (Math.abs(x) < 0.0001) x = 0.0001;
+        if (Math.abs(x - 1.0) < 0.0001) x = 0.9999;
+        if (Math.abs(x + 1.0) < 0.0001) x = -0.9999;
+
+        if (Math.abs(y) < 0.0001) y = 0.0001;
+        if (Math.abs(y - 1.0) < 0.0001) y = 0.9999;
+        if (Math.abs(y + 1.0) < 0.0001) y = -0.9999;
+
+        if (Math.abs(z) < 0.0001) z = 0.0001;
+        if (Math.abs(z - 1.0) < 0.0001) z = 0.9999;
+        if (Math.abs(z + 1.0) < 0.0001) z = -0.9999;
+
+        return new Vec3d(x, y, z);
+    } 
+
+    public static boolean isCriteriaValid(Vec3d start, Vec3d look, int reach, PlayerEntity player, boolean skipRaytrace, Vec3d lineBound, Vec3d planeBound, double distToPlayerSq) {
+        boolean intersects = false;
+        if (!skipRaytrace) {
+            //collision within a 1 block radius to selected is fine
+            RayTraceContext rayTraceContext = new RayTraceContext(start, lineBound, RayTraceContext.BlockMode.COLLIDER, RayTraceContext.FluidMode.NONE, player);
+            RayTraceResult rayTraceResult = player.world.rayTraceBlocks(rayTraceContext);
+            intersects = rayTraceResult != null && rayTraceResult.getType() == RayTraceResult.Type.BLOCK &&
+                         planeBound.subtract(rayTraceResult.getHitVec()).lengthSquared() > 4;
+        }
+
+        return planeBound.subtract(start).dotProduct(look) > 0 &&
+               distToPlayerSq > 2 && distToPlayerSq < reach * reach &&
+               !intersects;
+    }
+}

src/main/java/nl/requios/effortlessbuilding/buildmode/IBuildMode.java

@@ -0,0 +1,25 @@
+package nl.requios.effortlessbuilding.buildmode;
+
+import net.minecraft.entity.player.PlayerEntity;
+import net.minecraft.util.Direction;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.math.Vec3d;
+
+import java.util.List;
+
+public interface IBuildMode {
+
+    //Fired when a player selects a buildmode and when it needs to initializeMode
+    void initialize(PlayerEntity player);
+
+    //Fired when a block would be placed
+    //Return a list of coordinates where you want to place blocks
+    List<BlockPos> onRightClick(PlayerEntity player, BlockPos blockPos, Direction sideHit, Vec3d hitVec, boolean skipRaytrace);
+
+    //Fired continuously for visualization purposes
+    List<BlockPos> findCoordinates(PlayerEntity player, BlockPos blockPos, boolean skipRaytrace);
+
+    Direction getSideHit(PlayerEntity player);
+
+    Vec3d getHitVec(PlayerEntity player);
+}

src/main/java/nl/requios/effortlessbuilding/buildmode/ModeOptions.java

@@ -0,0 +1,182 @@
+package nl.requios.effortlessbuilding.buildmode;
+
+import net.minecraft.entity.player.PlayerEntity;
+import net.minecraft.util.text.TextFormatting;
+import nl.requios.effortlessbuilding.EffortlessBuilding;
+import nl.requios.effortlessbuilding.buildmodifier.ModifierSettingsManager;
+import nl.requios.effortlessbuilding.buildmodifier.UndoRedo;
+import nl.requios.effortlessbuilding.proxy.ClientProxy;
+
+public class ModeOptions {
+
+    public enum ActionEnum {
+        UNDO("effortlessbuilding.action.undo"),
+        REDO("effortlessbuilding.action.redo"),
+        REPLACE("effortlessbuilding.action.replace"),
+        OPEN_MODIFIER_SETTINGS("effortlessbuilding.action.open_modifier_settings"),
+
+        NORMAL_SPEED("effortlessbuilding.action.normal_speed"),
+        FAST_SPEED("effortlessbuilding.action.fast_speed"),
+
+        FULL("effortlessbuilding.action.full"),
+        HOLLOW("effortlessbuilding.action.hollow"),
+
+        CUBE_FULL("effortlessbuilding.action.full"),
+        CUBE_HOLLOW("effortlessbuilding.action.hollow"),
+        CUBE_SKELETON("effortlessbuilding.action.skeleton"),
+
+        SHORT_EDGE("effortlessbuilding.action.short_edge"),
+        LONG_EDGE("effortlessbuilding.action.long_edge"),
+
+        THICKNESS_1("effortlessbuilding.action.thickness_1"),
+        THICKNESS_3("effortlessbuilding.action.thickness_3"),
+        THICKNESS_5("effortlessbuilding.action.thickness_5"),
+
+        CIRCLE_START_CORNER("effortlessbuilding.action.start_corner"),
+        CIRCLE_START_CENTER("effortlessbuilding.action.start_center");
+
+        public String name;
+
+        ActionEnum(String name) {
+            this.name = name;
+        }
+    }
+
+    public enum OptionEnum {
+        BUILD_SPEED("effortlessbuilding.action.build_speed", ActionEnum.NORMAL_SPEED, ActionEnum.FAST_SPEED),
+        FILL("effortlessbuilding.action.filling", ActionEnum.FULL, ActionEnum.HOLLOW),
+        CUBE_FILL("effortlessbuilding.action.filling", ActionEnum.CUBE_FULL, ActionEnum.CUBE_HOLLOW, ActionEnum.CUBE_SKELETON),
+        RAISED_EDGE("effortlessbuilding.action.raised_edge", ActionEnum.SHORT_EDGE, ActionEnum.LONG_EDGE),
+        LINE_THICKNESS("effortlessbuilding.action.thickness", ActionEnum.THICKNESS_1, ActionEnum.THICKNESS_3, ActionEnum.THICKNESS_5),
+        CIRCLE_START("effortlessbuilding.action.circle_start", ActionEnum.CIRCLE_START_CORNER, ActionEnum.CIRCLE_START_CENTER);
+
+        public String name;
+        public ActionEnum[] actions;
+
+        OptionEnum(String name, ActionEnum... actions){
+            this.name = name;
+            this.actions = actions;
+        }
+    }
+
+    private static ActionEnum buildSpeed = ActionEnum.NORMAL_SPEED;
+    private static ActionEnum fill = ActionEnum.FULL;
+    private static ActionEnum cubeFill = ActionEnum.CUBE_FULL;
+    private static ActionEnum raisedEdge = ActionEnum.SHORT_EDGE;
+    private static ActionEnum lineThickness = ActionEnum.THICKNESS_1;
+    private static ActionEnum circleStart = ActionEnum.CIRCLE_START_CORNER;
+
+    public static ActionEnum getOptionSetting(OptionEnum option) {
+        switch (option) {
+            case BUILD_SPEED:
+                return getBuildSpeed();
+            case FILL:
+                return getFill();
+            case CUBE_FILL:
+                return getCubeFill();
+            case RAISED_EDGE:
+                return getRaisedEdge();
+            case LINE_THICKNESS:
+                return getLineThickness();
+            case CIRCLE_START:
+                return getCircleStart();
+            default:
+                return null;
+        }
+    }
+
+    public static ActionEnum getBuildSpeed() {
+        return buildSpeed;
+    }
+
+    public static ActionEnum getFill() {
+        return fill;
+    }
+
+    public static ActionEnum getCubeFill() {
+        return cubeFill;
+    }
+
+    public static ActionEnum getRaisedEdge() {
+        return raisedEdge;
+    }
+
+    public static ActionEnum getLineThickness() {
+        return lineThickness;
+    }
+
+    public static ActionEnum getCircleStart() {
+        return circleStart;
+    }
+
+    //Called on both client and server
+    public static void performAction(PlayerEntity player, ActionEnum action) {
+        if (action == null) return;
+
+        switch (action) {
+            case UNDO:
+                UndoRedo.undo(player);
+                break;
+            case REDO:
+                UndoRedo.redo(player);
+                break;
+            case REPLACE:
+                ModifierSettingsManager.ModifierSettings modifierSettings = ModifierSettingsManager.getModifierSettings(player);
+                modifierSettings.setQuickReplace(!modifierSettings.doQuickReplace());
+                EffortlessBuilding.log(player, "Set " + TextFormatting.GOLD + "Quick Replace " + TextFormatting.RESET + (
+                        modifierSettings.doQuickReplace() ? "on" : "off"), true);
+                break;
+            case OPEN_MODIFIER_SETTINGS:
+                if (player.world.isRemote)
+                    ClientProxy.openModifierSettings();
+                break;
+
+            case NORMAL_SPEED:
+                buildSpeed = ActionEnum.NORMAL_SPEED;
+                break;
+            case FAST_SPEED:
+                buildSpeed = ActionEnum.FAST_SPEED;
+                break;
+            case FULL:
+                fill = ActionEnum.FULL;
+                break;
+            case HOLLOW:
+                fill = ActionEnum.HOLLOW;
+                break;
+            case CUBE_FULL:
+                cubeFill = ActionEnum.CUBE_FULL;
+                break;
+            case CUBE_HOLLOW:
+                cubeFill = ActionEnum.CUBE_HOLLOW;
+                break;
+            case CUBE_SKELETON:
+                cubeFill = ActionEnum.CUBE_SKELETON;
+                break;
+            case SHORT_EDGE:
+                raisedEdge = ActionEnum.SHORT_EDGE;
+                break;
+            case LONG_EDGE:
+                raisedEdge = ActionEnum.LONG_EDGE;
+                break;
+            case THICKNESS_1:
+                lineThickness = ActionEnum.THICKNESS_1;
+                break;
+            case THICKNESS_3:
+                lineThickness = ActionEnum.THICKNESS_3;
+                break;
+            case THICKNESS_5:
+                lineThickness = ActionEnum.THICKNESS_5;
+                break;
+            case CIRCLE_START_CENTER:
+                circleStart = ActionEnum.CIRCLE_START_CENTER;
+                break;
+            case CIRCLE_START_CORNER:
+                circleStart = ActionEnum.CIRCLE_START_CORNER;
+                break;
+        }
+
+        if (player.world.isRemote && action != ActionEnum.REPLACE && action != ActionEnum.OPEN_MODIFIER_SETTINGS) {
+            EffortlessBuilding.logTranslate(player, "", action.name, "", true);
+        }
+    }
+}

src/main/java/nl/requios/effortlessbuilding/buildmode/ModeSettingsManager.java

@@ -0,0 +1,98 @@
+package nl.requios.effortlessbuilding.buildmode;
+
+import net.minecraft.entity.player.PlayerEntity;
+import net.minecraft.entity.player.ServerPlayerEntity;
+import net.minecraftforge.common.util.LazyOptional;
+import net.minecraftforge.fml.common.Mod;
+import net.minecraftforge.fml.network.PacketDistributor;
+import nl.requios.effortlessbuilding.EffortlessBuilding;
+import nl.requios.effortlessbuilding.capability.ModeCapabilityManager;
+import nl.requios.effortlessbuilding.helper.ReachHelper;
+import nl.requios.effortlessbuilding.network.ModeSettingsMessage;
+import nl.requios.effortlessbuilding.network.PacketHandler;
+
+import javax.annotation.Nonnull;
+
+@Mod.EventBusSubscriber
+public class ModeSettingsManager {
+
+    //Retrieves the buildsettings of a player through the modifierCapability capability
+    //Never returns null
+    @Nonnull
+    public static ModeSettings getModeSettings(PlayerEntity player) {
+        LazyOptional<ModeCapabilityManager.IModeCapability> modeCapability =
+                player.getCapability(ModeCapabilityManager.modeCapability, null);
+
+        if (modeCapability.isPresent()) {
+            ModeCapabilityManager.IModeCapability capability = modeCapability.orElse(null);
+            if (capability.getModeData() == null) {
+                capability.setModeData(new ModeSettings());
+            }
+            return capability.getModeData();
+        }
+
+        //Player does not have modeCapability capability
+        //Return dummy settings
+        return new ModeSettings();
+//        throw new IllegalArgumentException("Player does not have modeCapability capability");
+    }
+
+    public static void setModeSettings(PlayerEntity player, ModeSettings modeSettings) {
+        if (player == null) {
+            EffortlessBuilding.log("Cannot set buildmode settings, player is null");
+            return;
+        }
+        LazyOptional<ModeCapabilityManager.IModeCapability> modeCapability =
+                player.getCapability(ModeCapabilityManager.modeCapability, null);
+
+        modeCapability.ifPresent((capability) -> {
+            capability.setModeData(modeSettings);
+
+            BuildModes.initializeMode(player);
+        });
+
+        if (!modeCapability.isPresent()) {
+            EffortlessBuilding.log(player, "Saving buildmode settings failed.");
+        }
+    }
+
+    public static String sanitize(ModeSettings modeSettings, PlayerEntity player) {
+        int maxReach = ReachHelper.getMaxReach(player);
+        String error = "";
+
+        //TODO sanitize
+
+        return error;
+    }
+
+    public static class ModeSettings {
+        private BuildModes.BuildModeEnum buildMode = BuildModes.BuildModeEnum.NORMAL;
+
+        public ModeSettings() {
+        }
+
+        public ModeSettings(BuildModes.BuildModeEnum buildMode) {
+            this.buildMode = buildMode;
+        }
+
+        public BuildModes.BuildModeEnum getBuildMode() {
+            return this.buildMode;
+        }
+
+        public void setBuildMode(BuildModes.BuildModeEnum buildMode) {
+            this.buildMode = buildMode;
+        }
+    }
+
+    public static void handleNewPlayer(PlayerEntity player){
+        //Makes sure player has mode settings (if it doesnt it will create it)
+        getModeSettings(player);
+
+        //Only on server
+        if (!player.world.isRemote) {
+            //Send to client
+            ModeSettingsMessage msg = new ModeSettingsMessage(getModeSettings(player));
+            PacketHandler.INSTANCE.send(PacketDistributor.PLAYER.with(() -> (ServerPlayerEntity) player), msg);
+        }
+    }
+}

src/main/java/nl/requios/effortlessbuilding/buildmode/ThreeClicksBuildMode.java

@@ -0,0 +1,213 @@
+package nl.requios.effortlessbuilding.buildmode;
+
+import net.minecraft.entity.player.PlayerEntity;
+import net.minecraft.util.Direction;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.math.Vec3d;
+import nl.requios.effortlessbuilding.helper.ReachHelper;
+
+import java.util.*;
+
+public abstract class ThreeClicksBuildMode extends BaseBuildMode {
+    protected Dictionary<UUID, BlockPos> secondPosTable = new Hashtable<>();
+
+    static class HeightCriteria {
+        Vec3d planeBound;
+        Vec3d lineBound;
+        double distToLineSq;
+        double distToPlayerSq;
+
+        HeightCriteria(Vec3d planeBound, BlockPos secondPos, Vec3d start) {
+            this.planeBound = planeBound;
+            this.lineBound = toLongestLine(this.planeBound, secondPos);
+            this.distToLineSq = this.lineBound.subtract(this.planeBound).lengthSquared();
+            this.distToPlayerSq = this.planeBound.subtract(start).lengthSquared();
+        }
+
+        //Make it from a plane into a line, on y axis only
+        private Vec3d toLongestLine(Vec3d boundVec, BlockPos secondPos) {
+            BlockPos bound = new BlockPos(boundVec);
+            return new Vec3d(secondPos.getX(), bound.getY(), secondPos.getZ());
+        }
+
+        //check if its not behind the player and its not too close and not too far
+        //also check if raytrace from player to block does not intersect blocks
+        public boolean isValid(Vec3d start, Vec3d look, int reach, PlayerEntity player, boolean skipRaytrace) {
+
+            return BuildModes.isCriteriaValid(start, look, reach, player, skipRaytrace, lineBound, planeBound, distToPlayerSq);
+        }
+    }
+
+    @Override
+    public void initialize(PlayerEntity player) {
+        super.initialize(player);
+        secondPosTable.put(player.getUniqueID(), BlockPos.ZERO);
+    }
+
+    @Override
+    public List<BlockPos> onRightClick(PlayerEntity player, BlockPos blockPos, Direction sideHit, Vec3d hitVec, boolean skipRaytrace) {
+        List<BlockPos> list = new ArrayList<>();
+
+        Dictionary<UUID, Integer> rightClickTable = player.world.isRemote ? rightClickClientTable : rightClickServerTable;
+        int rightClickNr = rightClickTable.get(player.getUniqueID());
+        rightClickNr++;
+        rightClickTable.put(player.getUniqueID(), rightClickNr);
+
+        if (rightClickNr == 1) {
+            //If clicking in air, reset and try again
+            if (blockPos == null) {
+                rightClickTable.put(player.getUniqueID(), 0);
+                return list;
+            }
+
+            //First click, remember starting position
+            firstPosTable.put(player.getUniqueID(), blockPos);
+            sideHitTable.put(player.getUniqueID(), sideHit);
+            hitVecTable.put(player.getUniqueID(), hitVec);
+            //Keep list empty, dont place any blocks yet
+        } else if (rightClickNr == 2) {
+            //Second click, find other floor point
+            BlockPos firstPos = firstPosTable.get(player.getUniqueID());
+            BlockPos secondPos = findSecondPos(player, firstPos, true);
+
+            if (secondPos == null) {
+                rightClickTable.put(player.getUniqueID(), 1);
+                return list;
+            }
+
+            secondPosTable.put(player.getUniqueID(), secondPos);
+
+        } else {
+            //Third click, place diagonal wall with height
+            list = findCoordinates(player, blockPos, skipRaytrace);
+            rightClickTable.put(player.getUniqueID(), 0);
+        }
+
+        return list;
+    }
+
+    @Override
+    public List<BlockPos> findCoordinates(PlayerEntity player, BlockPos blockPos, boolean skipRaytrace) {
+        List<BlockPos> list = new ArrayList<>();
+        Dictionary<UUID, Integer> rightClickTable = player.world.isRemote ? rightClickClientTable : rightClickServerTable;
+        int rightClickNr = rightClickTable.get(player.getUniqueID());
+
+        if (rightClickNr == 0) {
+            if (blockPos != null)
+                list.add(blockPos);
+        } else if (rightClickNr == 1) {
+            BlockPos firstPos = firstPosTable.get(player.getUniqueID());
+
+            BlockPos secondPos = findSecondPos(player, firstPos, true);
+            if (secondPos == null) return list;
+
+            //Limit amount of blocks you can place per row
+            int axisLimit = ReachHelper.getMaxBlocksPerAxis(player);
+
+            int x1 = firstPos.getX(), x2 = secondPos.getX();
+            int y1 = firstPos.getY(), y2 = secondPos.getY();
+            int z1 = firstPos.getZ(), z2 = secondPos.getZ();
+
+            //limit axis
+            if (x2 - x1 >= axisLimit) x2 = x1 + axisLimit - 1;
+            if (x1 - x2 >= axisLimit) x2 = x1 - axisLimit + 1;
+            if (y2 - y1 >= axisLimit) y2 = y1 + axisLimit - 1;
+            if (y1 - y2 >= axisLimit) y2 = y1 - axisLimit + 1;
+            if (z2 - z1 >= axisLimit) z2 = z1 + axisLimit - 1;
+            if (z1 - z2 >= axisLimit) z2 = z1 - axisLimit + 1;
+
+            //Add diagonal line from first to second
+            list.addAll(getIntermediateBlocks(player, x1, y1, z1, x2, y2, z2));
+
+        } else {
+            BlockPos firstPos = firstPosTable.get(player.getUniqueID());
+            BlockPos secondPos = secondPosTable.get(player.getUniqueID());
+
+            BlockPos thirdPos = findThirdPos(player, firstPos, secondPos, skipRaytrace);
+            if (thirdPos == null) return list;
+
+            //Limit amount of blocks you can place per row
+            int axisLimit = ReachHelper.getMaxBlocksPerAxis(player);
+
+            int x1 = firstPos.getX(), x2 = secondPos.getX(), x3 = thirdPos.getX();
+            int y1 = firstPos.getY(), y2 = secondPos.getY(), y3 = thirdPos.getY();
+            int z1 = firstPos.getZ(), z2 = secondPos.getZ(), z3 = thirdPos.getZ();
+
+            //limit axis
+            if (x2 - x1 >= axisLimit) x2 = x1 + axisLimit - 1;
+            if (x1 - x2 >= axisLimit) x2 = x1 - axisLimit + 1;
+            if (y2 - y1 >= axisLimit) y2 = y1 + axisLimit - 1;
+            if (y1 - y2 >= axisLimit) y2 = y1 - axisLimit + 1;
+            if (z2 - z1 >= axisLimit) z2 = z1 + axisLimit - 1;
+            if (z1 - z2 >= axisLimit) z2 = z1 - axisLimit + 1;
+
+            if (x3 - x1 >= axisLimit) x3 = x1 + axisLimit - 1;
+            if (x1 - x3 >= axisLimit) x3 = x1 - axisLimit + 1;
+            if (y3 - y1 >= axisLimit) y3 = y1 + axisLimit - 1;
+            if (y1 - y3 >= axisLimit) y3 = y1 - axisLimit + 1;
+            if (z3 - z1 >= axisLimit) z3 = z1 + axisLimit - 1;
+            if (z1 - z3 >= axisLimit) z3 = z1 - axisLimit + 1;
+
+            //Add diagonal line from first to third
+            list.addAll(getFinalBlocks(player, x1, y1, z1, x2, y2, z2, x3, y3, z3));
+        }
+
+        return list;
+    }
+
+    //Finds the place of the second block pos
+    protected abstract BlockPos findSecondPos(PlayerEntity player, BlockPos firstPos, boolean skipRaytrace);
+
+    //Finds the place of the third block pos
+    protected abstract BlockPos findThirdPos(PlayerEntity player, BlockPos firstPos, BlockPos secondPos, boolean skipRaytrace);
+
+    //After first and second pos are known, we want to visualize the blocks in a way (like floor for cube)
+    protected abstract List<BlockPos> getIntermediateBlocks(PlayerEntity player, int x1, int y1, int z1, int x2, int y2, int z2);
+
+    //After first, second and third pos are known, we want all the blocks
+    protected abstract List<BlockPos> getFinalBlocks(PlayerEntity player, int x1, int y1, int z1, int x2, int y2, int z2, int x3, int y3, int z3);
+
+    //Finds height after floor has been chosen in buildmodes with 3 clicks
+    public static BlockPos findHeight(PlayerEntity player, BlockPos secondPos, boolean skipRaytrace) {
+        Vec3d look = BuildModes.getPlayerLookVec(player);
+        Vec3d start = new Vec3d(player.posX, player.posY + player.getEyeHeight(), player.posZ);
+
+        List<HeightCriteria> criteriaList = new ArrayList<>(3);
+
+        //X
+        Vec3d xBound = BuildModes.findXBound(secondPos.getX(), start, look);
+        criteriaList.add(new HeightCriteria(xBound, secondPos, start));
+
+        //Z
+        Vec3d zBound = BuildModes.findZBound(secondPos.getZ(), start, look);
+        criteriaList.add(new HeightCriteria(zBound, secondPos, start));
+
+        //Remove invalid criteria
+        int reach = ReachHelper.getPlacementReach(player) * 4; //4 times as much as normal placement reach
+        criteriaList.removeIf(criteria -> !criteria.isValid(start, look, reach, player, skipRaytrace));
+
+        //If none are valid, return empty list of blocks
+        if (criteriaList.isEmpty()) return null;
+
+        //If only 1 is valid, choose that one
+        HeightCriteria selected = criteriaList.get(0);
+
+        //If multiple are valid, choose based on criteria
+        if (criteriaList.size() > 1) {
+            //Select the one that is closest (from wall position to its line counterpart)
+            for (int i = 1; i < criteriaList.size(); i++) {
+                HeightCriteria criteria = criteriaList.get(i);
+                if (criteria.distToLineSq < 2.0 && selected.distToLineSq < 2.0) {
+                    //Both very close to line, choose closest to player
+                    if (criteria.distToPlayerSq < selected.distToPlayerSq)
+                        selected = criteria;
+                } else {
+                    //Pick closest to line
+                    if (criteria.distToLineSq < selected.distToLineSq)
+                        selected = criteria;
+                }
+            }
+        }
+        return new BlockPos(selected.lineBound);
+    }
+}

src/main/java/nl/requios/effortlessbuilding/buildmode/TwoClicksBuildMode.java

@@ -0,0 +1,87 @@
+package nl.requios.effortlessbuilding.buildmode;
+
+import net.minecraft.entity.player.PlayerEntity;
+import net.minecraft.util.Direction;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.math.Vec3d;
+import nl.requios.effortlessbuilding.EffortlessBuilding;
+import nl.requios.effortlessbuilding.helper.ReachHelper;
+
+import java.util.ArrayList;
+import java.util.Dictionary;
+import java.util.List;
+import java.util.UUID;
+
+public abstract class TwoClicksBuildMode extends BaseBuildMode {
+
+    @Override
+    public List<BlockPos> onRightClick(PlayerEntity player, BlockPos blockPos, Direction sideHit, Vec3d hitVec, boolean skipRaytrace) {
+        List<BlockPos> list = new ArrayList<>();
+
+        Dictionary<UUID, Integer> rightClickTable = player.world.isRemote ? rightClickClientTable : rightClickServerTable;
+        int rightClickNr = rightClickTable.get(player.getUniqueID());
+        rightClickNr++;
+        rightClickTable.put(player.getUniqueID(), rightClickNr);
+
+        if (rightClickNr == 1) {
+            //If clicking in air, reset and try again
+            if (blockPos == null) {
+                rightClickTable.put(player.getUniqueID(), 0);
+                return list;
+            }
+
+            //First click, remember starting position
+            firstPosTable.put(player.getUniqueID(), blockPos);
+            sideHitTable.put(player.getUniqueID(), sideHit);
+            hitVecTable.put(player.getUniqueID(), hitVec);
+            //Keep list empty, dont place any blocks yet
+        } else {
+            //Second click, place blocks
+            list = findCoordinates(player, blockPos, skipRaytrace);
+            rightClickTable.put(player.getUniqueID(), 0);
+        }
+
+        return list;
+    }
+
+    @Override
+    public List<BlockPos> findCoordinates(PlayerEntity player, BlockPos blockPos, boolean skipRaytrace) {
+        List<BlockPos> list = new ArrayList<>();
+        Dictionary<UUID, Integer> rightClickTable = player.world.isRemote ? rightClickClientTable : rightClickServerTable;
+        int rightClickNr = rightClickTable.get(player.getUniqueID());
+        BlockPos firstPos = firstPosTable.get(player.getUniqueID());
+
+        if (rightClickNr == 0) {
+            if (blockPos != null)
+                list.add(blockPos);
+        } else {
+            BlockPos secondPos = findSecondPos(player, firstPos, skipRaytrace);
+            if (secondPos == null) return list;
+
+            //Limit amount of blocks we can place per row
+            int axisLimit = ReachHelper.getMaxBlocksPerAxis(player);
+
+            int x1 = firstPos.getX(), x2 = secondPos.getX();
+            int y1 = firstPos.getY(), y2 = secondPos.getY();
+            int z1 = firstPos.getZ(), z2 = secondPos.getZ();
+
+            //limit axis
+            if (x2 - x1 >= axisLimit) x2 = x1 + axisLimit - 1;
+            if (x1 - x2 >= axisLimit) x2 = x1 - axisLimit + 1;
+            if (y2 - y1 >= axisLimit) y2 = y1 + axisLimit - 1;
+            if (y1 - y2 >= axisLimit) y2 = y1 - axisLimit + 1;
+            if (z2 - z1 >= axisLimit) z2 = z1 + axisLimit - 1;
+            if (z1 - z2 >= axisLimit) z2 = z1 - axisLimit + 1;
+
+            list.addAll(getAllBlocks(player, x1, y1, z1, x2, y2, z2));
+        }
+
+        return list;
+    }
+
+    //Finds the place of the second block pos based on criteria (floor must be on same height as first click, wall on same plane etc)
+    protected abstract BlockPos findSecondPos(PlayerEntity player, BlockPos firstPos, boolean skipRaytrace);
+
+    //After first and second pos are known, we want all the blocks
+    protected abstract List<BlockPos> getAllBlocks(PlayerEntity player, int x1, int y1, int z1, int x2, int y2, int z2);
+}

src/main/java/nl/requios/effortlessbuilding/buildmode/buildmodes/Circle.java

@@ -0,0 +1,88 @@
+package nl.requios.effortlessbuilding.buildmode.buildmodes;
+
+import net.minecraft.entity.player.PlayerEntity;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.math.MathHelper;
+import nl.requios.effortlessbuilding.buildmode.TwoClicksBuildMode;
+import nl.requios.effortlessbuilding.buildmode.ModeOptions;
+
+import java.util.*;
+
+public class Circle extends TwoClicksBuildMode {
+
+    @Override
+    protected BlockPos findSecondPos(PlayerEntity player, BlockPos firstPos, boolean skipRaytrace) {
+        return Floor.findFloor(player, firstPos, skipRaytrace);
+    }
+
+    @Override
+    protected List<BlockPos> getAllBlocks(PlayerEntity player, int x1, int y1, int z1, int x2, int y2, int z2) {
+        return getCircleBlocks(player, x1, y1, z1, x2, y2, z2);
+    }
+
+    public static List<BlockPos> getCircleBlocks(PlayerEntity player, int x1, int y1, int z1, int x2, int y2, int z2) {
+        List<BlockPos> list = new ArrayList<>();
+
+        float centerX = x1;
+        float centerZ = z1;
+
+        //Adjust for CIRCLE_START
+        if (ModeOptions.getCircleStart() == ModeOptions.ActionEnum.CIRCLE_START_CORNER) {
+            centerX = x1 + (x2 - x1) / 2f;
+            centerZ = z1 + (z2 - z1) / 2f;
+        } else {
+            x1 = (int) (centerX - (x2 - centerX));
+            z1 = (int) (centerZ - (z2 - centerZ));
+        }
+
+        float radiusX = MathHelper.abs(x2 - centerX);
+        float radiusZ = MathHelper.abs(z2 - centerZ);
+
+        if (ModeOptions.getFill() == ModeOptions.ActionEnum.FULL)
+            addCircleBlocks(list, x1, y1, z1, x2, y2, z2, centerX, centerZ, radiusX, radiusZ);
+        else
+            addHollowCircleBlocks(list, x1, y1, z1, x2, y2, z2, centerX, centerZ, radiusX, radiusZ);
+
+        return list;
+    }
+
+    public static void addCircleBlocks(List<BlockPos> list, int x1, int y1, int z1, int x2, int y2, int z2, float centerX, float centerZ, float radiusX, float radiusZ) {
+
+        for (int l = x1; x1 < x2 ? l <= x2 : l >= x2; l += x1 < x2 ? 1 : -1) {
+
+            for (int n = z1; z1 < z2 ? n <= z2 : n >= z2; n += z1 < z2 ? 1 : -1) {
+
+                float distance = distance(l, n, centerX, centerZ);
+                float radius = calculateEllipseRadius(centerX, centerZ, radiusX, radiusZ, l, n);
+                if (distance < radius + 0.4f)
+                    list.add(new BlockPos(l, y1, n));
+            }
+        }
+    }
+
+    public static void addHollowCircleBlocks(List<BlockPos> list, int x1, int y1, int z1, int x2, int y2, int z2, float centerX, float centerZ, float radiusX, float radiusZ) {
+
+        for (int l = x1; x1 < x2 ? l <= x2 : l >= x2; l += x1 < x2 ? 1 : -1) {
+
+            for (int n = z1; z1 < z2 ? n <= z2 : n >= z2; n += z1 < z2 ? 1 : -1) {
+
+                float distance = distance(l, n, centerX, centerZ);
+                float radius = calculateEllipseRadius(centerX, centerZ, radiusX, radiusZ, l, n);
+                if (distance < radius + 0.4f && distance > radius - 0.6f)
+                    list.add(new BlockPos(l, y1, n));
+            }
+        }
+    }
+
+    private static float distance(float x1, float z1, float x2, float z2) {
+        return MathHelper.sqrt((x2 - x1) * (x2 - x1) + (z2 - z1) * (z2 - z1));
+    }
+
+    public static float calculateEllipseRadius(float centerX, float centerZ, float radiusX, float radiusZ, int x, int z) {
+        //https://math.stackexchange.com/questions/432902/how-to-get-the-radius-of-an-ellipse-at-a-specific-angle-by-knowing-its-semi-majo
+        float theta = (float) MathHelper.atan2(z - centerZ, x - centerX);
+        float part1 = radiusX * radiusX * MathHelper.sin(theta) * MathHelper.sin(theta);
+        float part2 = radiusZ * radiusZ * MathHelper.cos(theta) * MathHelper.cos(theta);
+        return radiusX * radiusZ / MathHelper.sqrt(part1 + part2);
+    }
+}

src/main/java/nl/requios/effortlessbuilding/buildmode/buildmodes/Cube.java

@@ -0,0 +1,100 @@
+package nl.requios.effortlessbuilding.buildmode.buildmodes;
+
+import net.minecraft.entity.player.PlayerEntity;
+import net.minecraft.util.math.BlockPos;
+import nl.requios.effortlessbuilding.buildmode.ModeOptions;
+import nl.requios.effortlessbuilding.buildmode.ThreeClicksBuildMode;
+
+import java.util.*;
+
+public class Cube extends ThreeClicksBuildMode {
+
+    @Override
+    protected BlockPos findSecondPos(PlayerEntity player, BlockPos firstPos, boolean skipRaytrace) {
+        return Floor.findFloor(player, firstPos, skipRaytrace);
+    }
+
+    @Override
+    protected BlockPos findThirdPos(PlayerEntity player, BlockPos firstPos, BlockPos secondPos, boolean skipRaytrace) {
+        return findHeight(player, secondPos, skipRaytrace);
+    }
+
+    @Override
+    protected List<BlockPos> getIntermediateBlocks(PlayerEntity player, int x1, int y1, int z1, int x2, int y2, int z2) {
+        return getFloorBlocksUsingCubeFill(player, x1, y1, z1, x2, y2, z2);
+    }
+
+    @Override
+    protected List<BlockPos> getFinalBlocks(PlayerEntity player, int x1, int y1, int z1, int x2, int y2, int z2, int x3, int y3, int z3) {
+        return getCubeBlocks(player, x1, y1, z1, x3, y3, z3);
+    }
+
+    public static List<BlockPos> getFloorBlocksUsingCubeFill(PlayerEntity player, int x1, int y1, int z1, int x2, int y2, int z2) {
+        List<BlockPos> list = new ArrayList<>();
+
+        if (ModeOptions.getCubeFill() == ModeOptions.ActionEnum.CUBE_SKELETON)
+            Floor.addHollowFloorBlocks(list, x1, x2, y1, z1, z2);
+        else
+            Floor.addFloorBlocks(list, x1, x2, y1, z1, z2);
+
+        return list;
+    }
+
+    public static List<BlockPos> getCubeBlocks(PlayerEntity player, int x1, int y1, int z1, int x2, int y2, int z2) {
+        List<BlockPos> list = new ArrayList<>();
+
+        switch (ModeOptions.getCubeFill()) {
+            case CUBE_FULL:
+                addCubeBlocks(list, x1, x2, y1, y2, z1, z2);
+                break;
+            case CUBE_HOLLOW:
+                addHollowCubeBlocks(list, x1, x2, y1, y2, z1, z2);
+                break;
+            case CUBE_SKELETON:
+                addSkeletonCubeBlocks(list, x1, x2, y1, y2, z1, z2);
+                break;
+        }
+
+        return list;
+    }
+
+    public static void addCubeBlocks(List<BlockPos> list, int x1, int x2, int y1, int y2, int z1, int z2) {
+        for (int l = x1; x1 < x2 ? l <= x2 : l >= x2; l += x1 < x2 ? 1 : -1) {
+
+            for (int n = z1; z1 < z2 ? n <= z2 : n >= z2; n += z1 < z2 ? 1 : -1) {
+
+                for (int m = y1; y1 < y2 ? m <= y2 : m >= y2; m += y1 < y2 ? 1 : -1) {
+                    list.add(new BlockPos(l, m, n));
+                }
+            }
+        }
+    }
+
+    public static void addHollowCubeBlocks(List<BlockPos> list, int x1, int x2, int y1, int y2, int z1, int z2) {
+        Wall.addXWallBlocks(list, x1, y1, y2, z1, z2);
+        Wall.addXWallBlocks(list, x2, y1, y2, z1, z2);
+
+        Wall.addZWallBlocks(list, x1, x2, y1, y2, z1);
+        Wall.addZWallBlocks(list, x1, x2, y1, y2, z2);
+
+        Floor.addFloorBlocks(list, x1, x2, y1, z1, z2);
+        Floor.addFloorBlocks(list, x1, x2, y2, z1, z2);
+    }
+
+    public static void addSkeletonCubeBlocks(List<BlockPos> list, int x1, int x2, int y1, int y2, int z1, int z2) {
+        Line.addXLineBlocks(list, x1, x2, y1, z1);
+        Line.addXLineBlocks(list, x1, x2, y1, z2);
+        Line.addXLineBlocks(list, x1, x2, y2, z1);
+        Line.addXLineBlocks(list, x1, x2, y2, z2);
+
+        Line.addYLineBlocks(list, y1, y2, x1, z1);
+        Line.addYLineBlocks(list, y1, y2, x1, z2);
+        Line.addYLineBlocks(list, y1, y2, x2, z1);
+        Line.addYLineBlocks(list, y1, y2, x2, z2);
+
+        Line.addZLineBlocks(list, z1, z2, x1, y1);
+        Line.addZLineBlocks(list, z1, z2, x1, y2);
+        Line.addZLineBlocks(list, z1, z2, x2, y1);
+        Line.addZLineBlocks(list, z1, z2, x2, y2);
+    }
+}

src/main/java/nl/requios/effortlessbuilding/buildmode/buildmodes/Cylinder.java

@@ -0,0 +1,50 @@
+package nl.requios.effortlessbuilding.buildmode.buildmodes;
+
+import net.minecraft.entity.player.PlayerEntity;
+import net.minecraft.util.math.BlockPos;
+import nl.requios.effortlessbuilding.buildmode.ThreeClicksBuildMode;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class Cylinder extends ThreeClicksBuildMode {
+
+    @Override
+    public BlockPos findSecondPos(PlayerEntity player, BlockPos firstPos, boolean skipRaytrace) {
+        return Floor.findFloor(player, firstPos, skipRaytrace);
+    }
+
+    @Override
+    public BlockPos findThirdPos(PlayerEntity player, BlockPos firstPos, BlockPos secondPos, boolean skipRaytrace) {
+        return findHeight(player, secondPos, skipRaytrace);
+    }
+
+    @Override
+    public List<BlockPos> getIntermediateBlocks(PlayerEntity player, int x1, int y1, int z1, int x2, int y2, int z2) {
+        return Circle.getCircleBlocks(player, x1, y1, z1, x2, y2, z2);
+    }
+
+    @Override
+    public List<BlockPos> getFinalBlocks(PlayerEntity player, int x1, int y1, int z1, int x2, int y2, int z2, int x3, int y3, int z3) {
+        return getCylinderBlocks(player, x1, y1, z1, x2, y2, z2, x3, y3, z3);
+    }
+
+    public static List<BlockPos> getCylinderBlocks(PlayerEntity player, int x1, int y1, int z1, int x2, int y2, int z2, int x3, int y3, int z3) {
+        List<BlockPos> list = new ArrayList<>();
+
+        //Get circle blocks (using CIRCLE_START and FILL options built-in)
+        List<BlockPos> circleBlocks = Circle.getCircleBlocks(player, x1, y1, z1, x2, y2, z2);
+
+        int lowest = Math.min(y1, y3);
+        int highest = Math.max(y1, y3);
+
+        //Copy circle on y axis
+        for (int y = lowest; y <= highest; y++) {
+            for (BlockPos blockPos : circleBlocks) {
+                list.add(new BlockPos(blockPos.getX(), y, blockPos.getZ()));
+            }
+        }
+
+        return list;
+    }
+}

src/main/java/nl/requios/effortlessbuilding/buildmode/buildmodes/DiagonalLine.java

@@ -0,0 +1,53 @@
+package nl.requios.effortlessbuilding.buildmode.buildmodes;
+
+import net.minecraft.entity.player.PlayerEntity;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.math.Vec3d;
+import nl.requios.effortlessbuilding.buildmode.ThreeClicksBuildMode;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class DiagonalLine extends ThreeClicksBuildMode {
+
+    @Override
+    protected BlockPos findSecondPos(PlayerEntity player, BlockPos firstPos, boolean skipRaytrace) {
+        return Floor.findFloor(player, firstPos, skipRaytrace);
+    }
+
+    @Override
+    protected BlockPos findThirdPos(PlayerEntity player, BlockPos firstPos, BlockPos secondPos, boolean skipRaytrace) {
+        return findHeight(player, secondPos, skipRaytrace);
+    }
+
+    @Override
+    protected List<BlockPos> getIntermediateBlocks(PlayerEntity player, int x1, int y1, int z1, int x2, int y2, int z2) {
+        //Add diagonal line from first to second
+        return getDiagonalLineBlocks(player, x1, y1, z1, x2, y2, z2, 10);
+    }
+
+    @Override
+    protected List<BlockPos> getFinalBlocks(PlayerEntity player, int x1, int y1, int z1, int x2, int y2, int z2, int x3, int y3, int z3) {
+        //Add diagonal line from first to third
+        return getDiagonalLineBlocks(player, x1, y1, z1, x3, y3, z3, 10);
+    }
+
+    //Add diagonal line from first to second
+    public static List<BlockPos> getDiagonalLineBlocks(PlayerEntity player, int x1, int y1, int z1, int x2, int y2, int z2, float sampleMultiplier) {
+        List<BlockPos> list = new ArrayList<>();
+
+        Vec3d first = new Vec3d(x1, y1, z1).add(0.5, 0.5, 0.5);
+        Vec3d second = new Vec3d(x2, y2, z2).add(0.5, 0.5, 0.5);
+
+        int iterations = (int) Math.ceil(first.distanceTo(second) * sampleMultiplier);
+        for (double t = 0; t <= 1.0; t += 1.0/iterations) {
+            Vec3d lerp = first.add(second.subtract(first).scale(t));
+            BlockPos candidate = new BlockPos(lerp);
+            //Only add if not equal to the last in the list
+            if (list.isEmpty() || !list.get(list.size() - 1).equals(candidate))
+                list.add(candidate);
+        }
+
+        return list;
+    }
+}

src/main/java/nl/requios/effortlessbuilding/buildmode/buildmodes/DiagonalWall.java

@@ -0,0 +1,51 @@
+package nl.requios.effortlessbuilding.buildmode.buildmodes;
+
+import net.minecraft.entity.player.PlayerEntity;
+import net.minecraft.util.math.BlockPos;
+import nl.requios.effortlessbuilding.buildmode.ThreeClicksBuildMode;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class DiagonalWall extends ThreeClicksBuildMode {
+
+    @Override
+    protected BlockPos findSecondPos(PlayerEntity player, BlockPos firstPos, boolean skipRaytrace) {
+        return Floor.findFloor(player, firstPos, skipRaytrace);
+    }
+
+    @Override
+    protected BlockPos findThirdPos(PlayerEntity player, BlockPos firstPos, BlockPos secondPos, boolean skipRaytrace) {
+        return findHeight(player, secondPos, skipRaytrace);
+    }
+
+    @Override
+    protected List<BlockPos> getIntermediateBlocks(PlayerEntity player, int x1, int y1, int z1, int x2, int y2, int z2) {
+        return DiagonalLine.getDiagonalLineBlocks(player, x1, y1, z1, x2, y2, z2, 1);
+    }
+
+    @Override
+    protected List<BlockPos> getFinalBlocks(PlayerEntity player, int x1, int y1, int z1, int x2, int y2, int z2, int x3, int y3, int z3) {
+        return getDiagonalWallBlocks(player, x1, y1, z1, x2, y2, z2, x3, y3, z3);
+    }
+
+    //Add diagonal wall from first to second
+    public static List<BlockPos> getDiagonalWallBlocks(PlayerEntity player, int x1, int y1, int z1, int x2, int y2, int z2, int x3, int y3, int z3) {
+        List<BlockPos> list = new ArrayList<>();
+
+        //Get diagonal line blocks
+        List<BlockPos> diagonalLineBlocks = DiagonalLine.getDiagonalLineBlocks(player, x1, y1, z1, x2, y2, z2, 1);
+
+        int lowest = Math.min(y1, y3);
+        int highest = Math.max(y1, y3);
+
+        //Copy diagonal line on y axis
+        for (int y = lowest; y <= highest; y++) {
+            for (BlockPos blockPos : diagonalLineBlocks) {
+                list.add(new BlockPos(blockPos.getX(), y, blockPos.getZ()));
+            }
+        }
+
+        return list;
+    }
+}

src/main/java/nl/requios/effortlessbuilding/buildmode/buildmodes/Floor.java

@@ -0,0 +1,93 @@
+package nl.requios.effortlessbuilding.buildmode.buildmodes;
+
+import net.minecraft.entity.player.PlayerEntity;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.math.Vec3d;
+import nl.requios.effortlessbuilding.buildmode.BuildModes;
+import nl.requios.effortlessbuilding.buildmode.TwoClicksBuildMode;
+import nl.requios.effortlessbuilding.buildmode.ModeOptions;
+import nl.requios.effortlessbuilding.helper.ReachHelper;
+
+import java.util.*;
+
+public class Floor extends TwoClicksBuildMode {
+
+    static class Criteria {
+        Vec3d planeBound;
+        double distToPlayerSq;
+
+        Criteria(Vec3d planeBound, Vec3d start) {
+            this.planeBound = planeBound;
+            this.distToPlayerSq = this.planeBound.subtract(start).lengthSquared();
+        }
+
+        //check if its not behind the player and its not too close and not too far
+        //also check if raytrace from player to block does not intersect blocks
+        public boolean isValid(Vec3d start, Vec3d look, int reach, PlayerEntity player, boolean skipRaytrace) {
+
+            return BuildModes.isCriteriaValid(start, look, reach, player, skipRaytrace, planeBound, planeBound, distToPlayerSq);
+        }
+    }
+
+    @Override
+    protected BlockPos findSecondPos(PlayerEntity player, BlockPos firstPos, boolean skipRaytrace) {
+        return findFloor(player, firstPos, skipRaytrace);
+    }
+
+    public static BlockPos findFloor(PlayerEntity player, BlockPos firstPos, boolean skipRaytrace) {
+        Vec3d look = BuildModes.getPlayerLookVec(player);
+        Vec3d start = new Vec3d(player.posX, player.posY + player.getEyeHeight(), player.posZ);
+
+        List<Criteria> criteriaList = new ArrayList<>(3);
+
+        //Y
+        Vec3d yBound = BuildModes.findYBound(firstPos.getY(), start, look);
+        criteriaList.add(new Criteria(yBound, start));
+
+        //Remove invalid criteria
+        int reach = ReachHelper.getPlacementReach(player) * 4; //4 times as much as normal placement reach
+        criteriaList.removeIf(criteria -> !criteria.isValid(start, look, reach, player, skipRaytrace));
+
+        //If none are valid, return empty list of blocks
+        if (criteriaList.isEmpty()) return null;
+
+        //Then only 1 can be valid, return that one
+        Criteria selected = criteriaList.get(0);
+
+        return new BlockPos(selected.planeBound);
+    }
+
+    @Override
+    protected List<BlockPos> getAllBlocks(PlayerEntity player, int x1, int y1, int z1, int x2, int y2, int z2) {
+        return getFloorBlocks(player, x1, y1, z1, x2, y2, z2);
+    }
+
+    public static List<BlockPos> getFloorBlocks(PlayerEntity player, int x1, int y1, int z1, int x2, int y2, int z2) {
+        List<BlockPos> list = new ArrayList<>();
+
+        if (ModeOptions.getFill() == ModeOptions.ActionEnum.FULL)
+            addFloorBlocks(list, x1, x2, y1, z1, z2);
+        else
+            addHollowFloorBlocks(list, x1, x2, y1, z1, z2);
+
+        return list;
+    }
+
+    public static void addFloorBlocks(List<BlockPos> list, int x1, int x2, int y, int z1, int z2) {
+
+        for (int l = x1; x1 < x2 ? l <= x2 : l >= x2; l += x1 < x2 ? 1 : -1) {
+
+            for (int n = z1; z1 < z2 ? n <= z2 : n >= z2; n += z1 < z2 ? 1 : -1) {
+
+                list.add(new BlockPos(l, y, n));
+            }
+        }
+    }
+
+    public static void addHollowFloorBlocks(List<BlockPos> list, int x1, int x2, int y, int z1, int z2) {
+        Line.addXLineBlocks(list, x1, x2, y, z1);
+        Line.addXLineBlocks(list, x1, x2, y, z2);
+        Line.addZLineBlocks(list, z1, z2, x1, y);
+        Line.addZLineBlocks(list, z1, z2, x2, y);
+    }
+}

src/main/java/nl/requios/effortlessbuilding/buildmode/buildmodes/Line.java

@@ -0,0 +1,148 @@
+package nl.requios.effortlessbuilding.buildmode.buildmodes;
+
+import net.minecraft.entity.player.PlayerEntity;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.math.Vec3d;
+import nl.requios.effortlessbuilding.EffortlessBuilding;
+import nl.requios.effortlessbuilding.buildmode.BuildModes;
+import nl.requios.effortlessbuilding.buildmode.TwoClicksBuildMode;
+import nl.requios.effortlessbuilding.helper.ReachHelper;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class Line extends TwoClicksBuildMode {
+
+    static class Criteria {
+        Vec3d planeBound;
+        Vec3d lineBound;
+        double distToLineSq;
+        double distToPlayerSq;
+
+        Criteria(Vec3d planeBound, BlockPos firstPos, Vec3d start) {
+            this.planeBound = planeBound;
+            this.lineBound = toLongestLine(this.planeBound, firstPos);
+            this.distToLineSq = this.lineBound.subtract(this.planeBound).lengthSquared();
+            this.distToPlayerSq = this.planeBound.subtract(start).lengthSquared();
+        }
+
+        //Make it from a plane into a line
+        //Select the axis that is longest
+        private Vec3d toLongestLine(Vec3d boundVec, BlockPos firstPos) {
+            BlockPos bound = new BlockPos(boundVec);
+
+            BlockPos firstToSecond = bound.subtract(firstPos);
+            firstToSecond = new BlockPos(Math.abs(firstToSecond.getX()), Math.abs(firstToSecond.getY()), Math.abs(firstToSecond.getZ()));
+            int longest = Math.max(firstToSecond.getX(), Math.max(firstToSecond.getY(), firstToSecond.getZ()));
+            if (longest == firstToSecond.getX()) {
+                return new Vec3d(bound.getX(), firstPos.getY(), firstPos.getZ());
+            }
+            if (longest == firstToSecond.getY()) {
+                return new Vec3d(firstPos.getX(), bound.getY(), firstPos.getZ());
+            }
+            if (longest == firstToSecond.getZ()) {
+                return new Vec3d(firstPos.getX(), firstPos.getY(), bound.getZ());
+            }
+            return null;
+        }
+
+        //check if its not behind the player and its not too close and not too far
+        //also check if raytrace from player to block does not intersect blocks
+        public boolean isValid(Vec3d start, Vec3d look, int reach, PlayerEntity player, boolean skipRaytrace) {
+
+            return BuildModes.isCriteriaValid(start, look, reach, player, skipRaytrace, lineBound, planeBound, distToPlayerSq);
+        }
+
+    }
+
+    @Override
+    protected BlockPos findSecondPos(PlayerEntity player, BlockPos firstPos, boolean skipRaytrace) {
+        return findLine(player, firstPos, skipRaytrace);
+    }
+
+    public static BlockPos findLine(PlayerEntity player, BlockPos firstPos, boolean skipRaytrace) {
+        Vec3d look = BuildModes.getPlayerLookVec(player);
+        Vec3d start = new Vec3d(player.posX, player.posY + player.getEyeHeight(), player.posZ);
+
+        List<Criteria> criteriaList = new ArrayList<>(3);
+
+        //X
+        Vec3d xBound = BuildModes.findXBound(firstPos.getX(), start, look);
+        criteriaList.add(new Criteria(xBound, firstPos, start));
+
+        //Y
+        Vec3d yBound = BuildModes.findYBound(firstPos.getY(), start, look);
+        criteriaList.add(new Criteria(yBound, firstPos, start));
+
+        //Z
+        Vec3d zBound = BuildModes.findZBound(firstPos.getZ(), start, look);
+        criteriaList.add(new Criteria(zBound, firstPos, start));
+
+        //Remove invalid criteria
+        int reach = ReachHelper.getPlacementReach(player) * 4; //4 times as much as normal placement reach
+        criteriaList.removeIf(criteria -> !criteria.isValid(start, look, reach, player, skipRaytrace));
+
+        //If none are valid, return empty list of blocks
+        if (criteriaList.isEmpty()) return null;
+
+        //If only 1 is valid, choose that one
+        Criteria selected = criteriaList.get(0);
+
+        //If multiple are valid, choose based on criteria
+        if (criteriaList.size() > 1) {
+            //Select the one that is closest (from wall position to its line counterpart)
+            for (int i = 1; i < criteriaList.size(); i++) {
+                Criteria criteria = criteriaList.get(i);
+                if (criteria.distToLineSq < 2.0 && selected.distToLineSq < 2.0) {
+                    //Both very close to line, choose closest to player
+                    if (criteria.distToPlayerSq < selected.distToPlayerSq)
+                        selected = criteria;
+                } else {
+                    //Pick closest to line
+                    if (criteria.distToLineSq < selected.distToLineSq)
+                        selected = criteria;
+                }
+            }
+
+        }
+
+        return new BlockPos(selected.lineBound);
+    }
+
+    @Override
+    protected List<BlockPos> getAllBlocks(PlayerEntity player, int x1, int y1, int z1, int x2, int y2, int z2) {
+        return getLineBlocks(player, x1, y1, z1, x2, y2, z2);
+    }
+
+    public static List<BlockPos> getLineBlocks(PlayerEntity player, int x1, int y1, int z1, int x2, int y2, int z2) {
+        List<BlockPos> list = new ArrayList<>();
+
+        if (x1 != x2) {
+            addXLineBlocks(list, x1, x2, y1, z1);
+        } else if (y1 != y2) {
+            addYLineBlocks(list, y1, y2, x1, z1);
+        } else {
+            addZLineBlocks(list, z1, z2, x1, y1);
+        }
+
+        return list;
+    }
+
+    public static void addXLineBlocks(List<BlockPos> list, int x1, int x2, int y, int z) {
+        for (int x = x1; x1 < x2 ? x <= x2 : x >= x2; x += x1 < x2 ? 1 : -1) {
+            list.add(new BlockPos(x, y, z));
+        }
+    }
+
+    public static void addYLineBlocks(List<BlockPos> list, int y1, int y2, int x, int z) {
+        for (int y = y1; y1 < y2 ? y <= y2 : y >= y2; y += y1 < y2 ? 1 : -1) {
+            list.add(new BlockPos(x, y, z));
+        }
+    }
+
+    public static void addZLineBlocks(List<BlockPos> list, int z1, int z2, int x, int y) {
+        for (int z = z1; z1 < z2 ? z <= z2 : z >= z2; z += z1 < z2 ? 1 : -1) {
+            list.add(new BlockPos(x, y, z));
+        }
+    }
+}

src/main/java/nl/requios/effortlessbuilding/buildmode/buildmodes/Normal.java

@@ -0,0 +1,41 @@
+package nl.requios.effortlessbuilding.buildmode.buildmodes;
+
+import net.minecraft.entity.player.PlayerEntity;
+import net.minecraft.util.Direction;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.math.Vec3d;
+import nl.requios.effortlessbuilding.buildmode.IBuildMode;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class Normal implements IBuildMode {
+    @Override
+    public void initialize(PlayerEntity player) {
+
+    }
+
+    @Override
+    public List<BlockPos> onRightClick(PlayerEntity player, BlockPos blockPos, Direction sideHit, Vec3d hitVec, boolean skipRaytrace) {
+        List<BlockPos> list = new ArrayList<>();
+        if (blockPos != null) list.add(blockPos);
+        return list;
+    }
+
+    @Override
+    public List<BlockPos> findCoordinates(PlayerEntity player, BlockPos blockPos, boolean skipRaytrace) {
+        List<BlockPos> list = new ArrayList<>();
+        if (blockPos != null) list.add(blockPos);
+        return list;
+    }
+
+    @Override
+    public Direction getSideHit(PlayerEntity player) {
+        return null;
+    }
+
+    @Override
+    public Vec3d getHitVec(PlayerEntity player) {
+        return null;
+    }
+}

src/main/java/nl/requios/effortlessbuilding/buildmode/buildmodes/NormalPlus.java

@@ -0,0 +1,41 @@
+package nl.requios.effortlessbuilding.buildmode.buildmodes;
+
+import net.minecraft.entity.player.PlayerEntity;
+import net.minecraft.util.Direction;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.math.Vec3d;
+import nl.requios.effortlessbuilding.buildmode.IBuildMode;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class NormalPlus implements IBuildMode {
+    @Override
+    public void initialize(PlayerEntity player) {
+
+    }
+
+    @Override
+    public List<BlockPos> onRightClick(PlayerEntity player, BlockPos blockPos, Direction sideHit, Vec3d hitVec, boolean skipRaytrace) {
+        List<BlockPos> list = new ArrayList<>();
+        if (blockPos != null) list.add(blockPos);
+        return list;
+    }
+
+    @Override
+    public List<BlockPos> findCoordinates(PlayerEntity player, BlockPos blockPos, boolean skipRaytrace) {
+        List<BlockPos> list = new ArrayList<>();
+        if (blockPos != null) list.add(blockPos);
+        return list;
+    }
+
+    @Override
+    public Direction getSideHit(PlayerEntity player) {
+        return null;
+    }
+
+    @Override
+    public Vec3d getHitVec(PlayerEntity player) {
+        return null;
+    }
+}

src/main/java/nl/requios/effortlessbuilding/buildmode/buildmodes/SlopeFloor.java

@@ -0,0 +1,95 @@
+package nl.requios.effortlessbuilding.buildmode.buildmodes;
+
+import net.minecraft.entity.player.PlayerEntity;
+import net.minecraft.util.math.BlockPos;
+import nl.requios.effortlessbuilding.buildmode.ModeOptions;
+import nl.requios.effortlessbuilding.buildmode.ThreeClicksBuildMode;
+import nl.requios.effortlessbuilding.helper.ReachHelper;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class SlopeFloor extends ThreeClicksBuildMode {
+
+    @Override
+    protected BlockPos findSecondPos(PlayerEntity player, BlockPos firstPos, boolean skipRaytrace) {
+        return Floor.findFloor(player, firstPos, skipRaytrace);
+    }
+
+    @Override
+    protected BlockPos findThirdPos(PlayerEntity player, BlockPos firstPos, BlockPos secondPos, boolean skipRaytrace) {
+        return findHeight(player, secondPos, skipRaytrace);
+    }
+
+    @Override
+    protected List<BlockPos> getIntermediateBlocks(PlayerEntity player, int x1, int y1, int z1, int x2, int y2, int z2) {
+        return Floor.getFloorBlocks(player, x1, y1, z1, x2, y2, z2);
+    }
+
+    @Override
+    protected List<BlockPos> getFinalBlocks(PlayerEntity player, int x1, int y1, int z1, int x2, int y2, int z2, int x3, int y3, int z3) {
+        return getSlopeFloorBlocks(player, x1, y1, z1, x2, y2, z2, x3, y3, z3);
+    }
+
+    //Add slope floor from first to second
+    public static List<BlockPos> getSlopeFloorBlocks(PlayerEntity player, int x1, int y1, int z1, int x2, int y2, int z2, int x3, int y3, int z3) {
+        List<BlockPos> list = new ArrayList<>();
+
+        int axisLimit = ReachHelper.getMaxBlocksPerAxis(player);
+
+        //Determine whether to use x or z axis to slope up
+        boolean onXAxis = true;
+
+        int xLength = Math.abs(x2 - x1);
+        int zLength = Math.abs(z2 - z1);
+
+        if (ModeOptions.getRaisedEdge() == ModeOptions.ActionEnum.SHORT_EDGE) {
+            //Slope along short edge
+            if (zLength > xLength) onXAxis = false;
+        } else {
+            //Slope along long edge
+            if (zLength <= xLength) onXAxis = false;
+        }
+
+        if (onXAxis) {
+            //Along X goes up
+
+            //Get diagonal line blocks
+            List<BlockPos> diagonalLineBlocks = DiagonalLine.getDiagonalLineBlocks(player, x1, y1, z1, x2, y3, z1, 1f);
+
+            //Limit amount of blocks we can place
+            int lowest = Math.min(z1, z2);
+            int highest = Math.max(z1, z2);
+
+            if (highest - lowest >= axisLimit) highest = lowest + axisLimit - 1;
+
+            //Copy diagonal line on x axis
+            for (int z = lowest; z <= highest; z++) {
+                for (BlockPos blockPos : diagonalLineBlocks) {
+                    list.add(new BlockPos(blockPos.getX(), blockPos.getY(), z));
+                }
+            }
+
+        } else {
+            //Along Z goes up
+
+            //Get diagonal line blocks
+            List<BlockPos> diagonalLineBlocks = DiagonalLine.getDiagonalLineBlocks(player, x1, y1, z1, x1, y3, z2, 1f);
+
+            //Limit amount of blocks we can place
+            int lowest = Math.min(x1, x2);
+            int highest = Math.max(x1, x2);
+
+            if (highest - lowest >= axisLimit) highest = lowest + axisLimit - 1;
+
+            //Copy diagonal line on x axis
+            for (int x = lowest; x <= highest; x++) {
+                for (BlockPos blockPos : diagonalLineBlocks) {
+                    list.add(new BlockPos(x, blockPos.getY(), blockPos.getZ()));
+                }
+            }
+        }
+
+        return list;
+    }
+}

src/main/java/nl/requios/effortlessbuilding/buildmode/buildmodes/Sphere.java

@@ -0,0 +1,110 @@
+package nl.requios.effortlessbuilding.buildmode.buildmodes;
+
+import net.minecraft.entity.player.PlayerEntity;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.math.MathHelper;
+import nl.requios.effortlessbuilding.buildmode.ModeOptions;
+import nl.requios.effortlessbuilding.buildmode.ThreeClicksBuildMode;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class Sphere extends ThreeClicksBuildMode {
+
+    @Override
+    public BlockPos findSecondPos(PlayerEntity player, BlockPos firstPos, boolean skipRaytrace) {
+        return Floor.findFloor(player, firstPos, skipRaytrace);
+    }
+
+    @Override
+    public BlockPos findThirdPos(PlayerEntity player, BlockPos firstPos, BlockPos secondPos, boolean skipRaytrace) {
+        return findHeight(player, secondPos, skipRaytrace);
+    }
+
+    @Override
+    public List<BlockPos> getIntermediateBlocks(PlayerEntity player, int x1, int y1, int z1, int x2, int y2, int z2) {
+        return Circle.getCircleBlocks(player, x1, y1, z1, x2, y2, z2);
+    }
+
+    @Override
+    public List<BlockPos> getFinalBlocks(PlayerEntity player, int x1, int y1, int z1, int x2, int y2, int z2, int x3, int y3, int z3) {
+        return getSphereBlocks(player, x1, y1, z1, x2, y2, z2, x3, y3, z3);
+    }
+
+    public static List<BlockPos> getSphereBlocks(PlayerEntity player, int x1, int y1, int z1, int x2, int y2, int z2, int x3, int y3, int z3) {
+        List<BlockPos> list = new ArrayList<>();
+
+        float centerX = x1;
+        float centerY = y1;
+        float centerZ = z1;
+
+        //Adjust for CIRCLE_START
+        if (ModeOptions.getCircleStart() == ModeOptions.ActionEnum.CIRCLE_START_CORNER) {
+            centerX = x1 + (x2 - x1) / 2f;
+            centerY = y1 + (y3 - y1) / 2f;
+            centerZ = z1 + (z2 - z1) / 2f;
+        } else {
+            x1 = (int) (centerX - (x2 - centerX));
+            y1 = (int) (centerY - (y3 - centerY));
+            z1 = (int) (centerZ - (z2 - centerZ));
+        }
+
+        float radiusX = MathHelper.abs(x2 - centerX);
+        float radiusY = MathHelper.abs(y3 - centerY);
+        float radiusZ = MathHelper.abs(z2 - centerZ);
+
+        if (ModeOptions.getFill() == ModeOptions.ActionEnum.FULL)
+            addSphereBlocks(list, x1, y1, z1, x3, y3, z3, centerX, centerY, centerZ, radiusX, radiusY, radiusZ);
+        else
+            addHollowSphereBlocks(list, x1, y1, z1, x3, y3, z3, centerX, centerY, centerZ, radiusX, radiusY, radiusZ);
+
+        return list;
+    }
+
+    public static void addSphereBlocks(List<BlockPos> list, int x1, int y1, int z1, int x2, int y2, int z2,
+                                       float centerX, float centerY, float centerZ, float radiusX, float radiusY, float radiusZ) {
+        for (int l = x1; x1 < x2 ? l <= x2 : l >= x2; l += x1 < x2 ? 1 : -1) {
+
+            for (int n = z1; z1 < z2 ? n <= z2 : n >= z2; n += z1 < z2 ? 1 : -1) {
+
+                for (int m = y1; y1 < y2 ? m <= y2 : m >= y2; m += y1 < y2 ? 1 : -1) {
+
+                    float distance = distance(l, m, n, centerX, centerY, centerZ);
+                    float radius = calculateSpheroidRadius(centerX, centerY, centerZ, radiusX, radiusY, radiusZ, l, m, n);
+                    if (distance < radius + 0.4f)
+                        list.add(new BlockPos(l, m, n));
+                }
+            }
+        }
+    }
+
+    public static void addHollowSphereBlocks(List<BlockPos> list, int x1, int y1, int z1, int x2, int y2, int z2,
+                                             float centerX, float centerY, float centerZ, float radiusX, float radiusY, float radiusZ) {
+        for (int l = x1; x1 < x2 ? l <= x2 : l >= x2; l += x1 < x2 ? 1 : -1) {
+
+            for (int n = z1; z1 < z2 ? n <= z2 : n >= z2; n += z1 < z2 ? 1 : -1) {
+
+                for (int m = y1; y1 < y2 ? m <= y2 : m >= y2; m += y1 < y2 ? 1 : -1) {
+
+                    float distance = distance(l, m, n, centerX, centerY, centerZ);
+                    float radius = calculateSpheroidRadius(centerX, centerY, centerZ, radiusX, radiusY, radiusZ, l, m, n);
+                    if (distance < radius + 0.4f && distance > radius - 0.6f)
+                        list.add(new BlockPos(l, m, n));
+                }
+            }
+        }
+    }
+
+    private static float distance(float x1, float y1, float z1, float x2, float y2, float z2) {
+        return MathHelper.sqrt((x2 - x1) * (x2 - x1) + (y2 - y1) * (y2 - y1) + (z2 - z1) * (z2 - z1));
+    }
+
+    public static float calculateSpheroidRadius(float centerX, float centerY, float centerZ, float radiusX, float radiusY, float radiusZ, int x, int y, int z) {
+        //Twice ellipse radius
+        float radiusXZ = Circle.calculateEllipseRadius(centerX, centerZ, radiusX, radiusZ, x, z);
+
+        //TODO project x to plane
+
+        return Circle.calculateEllipseRadius(centerX, centerY, radiusXZ, radiusY, x, y);
+    }
+}

src/main/java/nl/requios/effortlessbuilding/buildmode/buildmodes/Wall.java

@@ -0,0 +1,134 @@
+package nl.requios.effortlessbuilding.buildmode.buildmodes;
+
+import net.minecraft.entity.player.PlayerEntity;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.math.Vec3d;
+import nl.requios.effortlessbuilding.buildmode.BuildModes;
+import nl.requios.effortlessbuilding.buildmode.TwoClicksBuildMode;
+import nl.requios.effortlessbuilding.buildmode.ModeOptions;
+import nl.requios.effortlessbuilding.helper.ReachHelper;
+
+import java.util.*;
+
+public class Wall extends TwoClicksBuildMode {
+
+    static class Criteria {
+        Vec3d planeBound;
+        double distToPlayerSq;
+        double angle;
+
+        Criteria(Vec3d planeBound, BlockPos firstPos, Vec3d start, Vec3d look) {
+            this.planeBound = planeBound;
+            this.distToPlayerSq = this.planeBound.subtract(start).lengthSquared();
+            Vec3d wall = this.planeBound.subtract(new Vec3d(firstPos));
+            this.angle = wall.x * look.x + wall.z * look.z; //dot product ignoring y (looking up/down should not affect this angle)
+        }
+
+        //check if its not behind the player and its not too close and not too far
+        //also check if raytrace from player to block does not intersect blocks
+        public boolean isValid(Vec3d start, Vec3d look, int reach, PlayerEntity player, boolean skipRaytrace) {
+
+            return BuildModes.isCriteriaValid(start, look, reach, player, skipRaytrace, planeBound, planeBound, distToPlayerSq);
+        }
+    }
+
+    @Override
+    protected BlockPos findSecondPos(PlayerEntity player, BlockPos firstPos, boolean skipRaytrace) {
+        return findWall(player, firstPos, skipRaytrace);
+    }
+
+    public static BlockPos findWall(PlayerEntity player, BlockPos firstPos, boolean skipRaytrace) {
+        Vec3d look = BuildModes.getPlayerLookVec(player);
+        Vec3d start = new Vec3d(player.posX, player.posY + player.getEyeHeight(), player.posZ);
+
+        List<Criteria> criteriaList = new ArrayList<>(3);
+
+        //X
+        Vec3d xBound = BuildModes.findXBound(firstPos.getX(), start, look);
+        criteriaList.add(new Criteria(xBound, firstPos, start, look));
+
+        //Z
+        Vec3d zBound = BuildModes.findZBound(firstPos.getZ(), start, look);
+        criteriaList.add(new Criteria(zBound, firstPos, start, look));
+
+        //Remove invalid criteria
+        int reach = ReachHelper.getPlacementReach(player) * 4; //4 times as much as normal placement reach
+        criteriaList.removeIf(criteria -> !criteria.isValid(start, look, reach, player, skipRaytrace));
+
+        //If none are valid, return empty list of blocks
+        if (criteriaList.isEmpty()) return null;
+
+        //If only 1 is valid, choose that one
+        Criteria selected = criteriaList.get(0);
+
+        //If multiple are valid, choose based on criteria
+        if (criteriaList.size() > 1) {
+            //Select the one that is closest
+            //Limit the angle to not be too extreme
+            for (int i = 1; i < criteriaList.size(); i++) {
+                Criteria criteria = criteriaList.get(i);
+                if (criteria.distToPlayerSq < selected.distToPlayerSq && Math.abs(criteria.angle) - Math.abs(selected.angle) < 3)
+                    selected = criteria;
+            }
+        }
+
+        return new BlockPos(selected.planeBound);
+    }
+
+    @Override
+    protected List<BlockPos> getAllBlocks(PlayerEntity player, int x1, int y1, int z1, int x2, int y2, int z2) {
+        return getWallBlocks(player, x1, y1, z1, x2, y2, z2);
+    }
+
+    public static List<BlockPos> getWallBlocks(PlayerEntity player, int x1, int y1, int z1, int x2, int y2, int z2) {
+        List<BlockPos> list = new ArrayList<>();
+
+        if (x1 == x2) {
+            if (ModeOptions.getFill() == ModeOptions.ActionEnum.FULL)
+                addXWallBlocks(list, x1, y1, y2, z1, z2);
+            else
+                addXHollowWallBlocks(list, x1, y1, y2, z1, z2);
+        } else {
+            if (ModeOptions.getFill() == ModeOptions.ActionEnum.FULL)
+                addZWallBlocks(list, x1, x2, y1, y2, z1);
+            else
+                addZHollowWallBlocks(list, x1, x2, y1, y2, z1);
+        }
+
+        return list;
+    }
+
+    public static void addXWallBlocks(List<BlockPos> list, int x, int y1, int y2, int z1, int z2) {
+
+        for (int z = z1; z1 < z2 ? z <= z2 : z >= z2; z += z1 < z2 ? 1 : -1) {
+
+            for (int y = y1; y1 < y2 ? y <= y2 : y >= y2; y += y1 < y2 ? 1 : -1) {
+                list.add(new BlockPos(x, y, z));
+            }
+        }
+    }
+
+    public static void addZWallBlocks(List<BlockPos> list, int x1, int x2, int y1, int y2, int z) {
+
+        for (int x = x1; x1 < x2 ? x <= x2 : x >= x2; x += x1 < x2 ? 1 : -1) {
+
+            for (int y = y1; y1 < y2 ? y <= y2 : y >= y2; y += y1 < y2 ? 1 : -1) {
+                list.add(new BlockPos(x, y, z));
+            }
+        }
+    }
+
+    public static void addXHollowWallBlocks(List<BlockPos> list, int x, int y1, int y2, int z1, int z2) {
+        Line.addZLineBlocks(list, z1, z2, x, y1);
+        Line.addZLineBlocks(list, z1, z2, x, y2);
+        Line.addYLineBlocks(list, y1, y2, x, z1);
+        Line.addYLineBlocks(list, y1, y2, x, z2);
+    }
+
+    public static void addZHollowWallBlocks(List<BlockPos> list, int x1, int x2, int y1, int y2, int z) {
+        Line.addXLineBlocks(list, x1, x2, y1, z);
+        Line.addXLineBlocks(list, x1, x2, y2, z);
+        Line.addYLineBlocks(list, y1, y2, x1, z);
+        Line.addYLineBlocks(list, y1, y2, x2, z);
+    }
+}

src/main/java/nl/requios/effortlessbuilding/buildmodifier/Array.java

@@ -0,0 +1,104 @@
+package nl.requios.effortlessbuilding.buildmodifier;
+
+import net.minecraft.block.BlockState;
+import net.minecraft.entity.player.PlayerEntity;
+import net.minecraft.item.ItemStack;
+import net.minecraft.util.Direction;
+import net.minecraft.util.Hand;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.math.Vec3d;
+import net.minecraft.util.math.Vec3i;
+import net.minecraftforge.items.IItemHandler;
+import nl.requios.effortlessbuilding.item.ItemRandomizerBag;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class Array {
+
+    public static class ArraySettings{
+        public boolean enabled = false;
+        public BlockPos offset = BlockPos.ZERO;
+        public int count = 5;
+
+        public ArraySettings() {
+        }
+
+        public ArraySettings(boolean enabled, BlockPos offset, int count) {
+            this.enabled = enabled;
+            this.offset = offset;
+            this.count = count;
+        }
+
+        public int getReach() {
+            //find largest offset
+            int x = Math.abs(offset.getX());
+            int y = Math.abs(offset.getY());
+            int z = Math.abs(offset.getZ());
+            int largestOffset = Math.max(Math.max(x, y), z);
+
+            return largestOffset * count;
+        }
+    }
+
+    public static List<BlockPos> findCoordinates(PlayerEntity player, BlockPos startPos) {
+        List<BlockPos> coordinates = new ArrayList<>();
+
+        //find arraysettings for the player
+        ArraySettings a = ModifierSettingsManager.getModifierSettings(player).getArraySettings();
+        if (!isEnabled(a)) return coordinates;
+
+        BlockPos pos = startPos;
+        Vec3i offset = new Vec3i(a.offset.getX(), a.offset.getY(), a.offset.getZ());
+
+        for (int i = 0; i < a.count; i++) {
+            pos = pos.add(offset);
+            coordinates.add(pos);
+        }
+
+        return coordinates;
+    }
+
+    public static List<BlockState> findBlockStates(PlayerEntity player, BlockPos startPos, BlockState blockState, ItemStack itemStack, List<ItemStack> itemStacks) {
+        List<BlockState> blockStates = new ArrayList<>();
+
+        //find arraysettings for the player that placed the block
+        ArraySettings a = ModifierSettingsManager.getModifierSettings(player).getArraySettings();
+        if (!isEnabled(a)) return blockStates;
+
+        BlockPos pos = startPos;
+        Vec3i offset = new Vec3i(a.offset.getX(), a.offset.getY(), a.offset.getZ());
+
+        //Randomizer bag synergy
+        IItemHandler bagInventory = null;
+        if (!itemStack.isEmpty() && itemStack.getItem() instanceof ItemRandomizerBag) {
+            bagInventory = ItemRandomizerBag.getBagInventory(itemStack);
+        }
+
+        for (int i = 0; i < a.count; i++) {
+            pos = pos.add(offset);
+
+            //Randomizer bag synergy
+            if (bagInventory != null) {
+                itemStack = ItemRandomizerBag.pickRandomStack(bagInventory);
+                blockState = BuildModifiers
+                        .getBlockStateFromItem(itemStack, player, startPos, Direction.UP, new Vec3d(0, 0, 0), Hand.MAIN_HAND);
+            }
+
+            //blockState = blockState.getBlock().getStateForPlacement(player.world, pos, )
+            blockStates.add(blockState);
+            itemStacks.add(itemStack);
+        }
+
+        return blockStates;
+    }
+
+    public static boolean isEnabled(ArraySettings a) {
+        if (a == null || !a.enabled) return false;
+
+        if (a.offset.getX() == 0 && a.offset.getY() == 0 && a.offset.getZ() == 0) return false;
+
+        return true;
+    }
+
+}

src/main/java/nl/requios/effortlessbuilding/buildmodifier/BlockSet.java

@@ -0,0 +1,50 @@
+package nl.requios.effortlessbuilding.buildmodifier;
+
+import net.minecraft.block.BlockState;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.math.Vec3d;
+
+import java.util.List;
+
+public class BlockSet {
+    private List<BlockPos> coordinates;
+    private List<BlockState> previousBlockStates;
+    private List<BlockState> newBlockStates;
+    private Vec3d hitVec;
+    private BlockPos firstPos;
+    private BlockPos secondPos;
+
+    public BlockSet(List<BlockPos> coordinates, List<BlockState> previousBlockStates, List<BlockState> newBlockStates, Vec3d hitVec,
+                    BlockPos firstPos, BlockPos secondPos) {
+        this.coordinates = coordinates;
+        this.previousBlockStates = previousBlockStates;
+        this.newBlockStates = newBlockStates;
+        this.hitVec = hitVec;
+        this.firstPos = firstPos;
+        this.secondPos = secondPos;
+    }
+
+    public List<BlockPos> getCoordinates() {
+        return coordinates;
+    }
+
+    public List<BlockState> getPreviousBlockStates() {
+        return previousBlockStates;
+    }
+
+    public List<BlockState> getNewBlockStates() {
+        return newBlockStates;
+    }
+
+    public Vec3d getHitVec() {
+        return hitVec;
+    }
+
+    public BlockPos getFirstPos() {
+        return firstPos;
+    }
+
+    public BlockPos getSecondPos() {
+        return secondPos;
+    }
+}

src/main/java/nl/requios/effortlessbuilding/buildmodifier/BuildModifiers.java

@@ -0,0 +1,260 @@
+package nl.requios.effortlessbuilding.buildmodifier;
+
+import net.minecraft.block.Block;
+import net.minecraft.block.BlockState;
+import net.minecraft.entity.player.PlayerEntity;
+import net.minecraft.block.Blocks;
+import net.minecraft.item.BlockItem;
+import net.minecraft.item.BlockItemUseContext;
+import net.minecraft.item.ItemStack;
+import net.minecraft.item.ItemUseContext;
+import net.minecraft.util.Direction;
+import net.minecraft.util.Hand;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.math.BlockRayTraceResult;
+import net.minecraft.util.math.Vec3d;
+import net.minecraft.world.World;
+import nl.requios.effortlessbuilding.compatibility.CompatHelper;
+import nl.requios.effortlessbuilding.helper.InventoryHelper;
+import nl.requios.effortlessbuilding.helper.SurvivalHelper;
+import nl.requios.effortlessbuilding.item.ItemRandomizerBag;
+import nl.requios.effortlessbuilding.render.BlockPreviewRenderer;
+
+import java.util.*;
+
+public class BuildModifiers {
+
+    //Called from BuildModes
+    public static void onBlockPlaced(PlayerEntity player, List<BlockPos> startCoordinates, Direction sideHit, Vec3d hitVec, boolean placeStartPos) {
+        World world = player.world;
+        ItemRandomizerBag.renewRandomness();
+
+        //Format hitvec to 0.x
+        hitVec = new Vec3d(Math.abs(hitVec.x - ((int) hitVec.x)), Math.abs(hitVec.y - ((int) hitVec.y)), Math.abs(hitVec.z - ((int) hitVec.z)));
+
+        //find coordinates and blockstates
+        List<BlockPos> coordinates = findCoordinates(player, startCoordinates);
+        List<ItemStack> itemStacks = new ArrayList<>();
+        List<BlockState> blockStates = findBlockStates(player, startCoordinates, hitVec, sideHit, itemStacks);
+
+        //check if valid blockstates
+        if (blockStates.size() == 0 || coordinates.size() != blockStates.size()) return;
+
+        //remember previous blockstates for undo
+        List<BlockState> previousBlockStates = new ArrayList<>(coordinates.size());
+        List<BlockState> newBlockStates = new ArrayList<>(coordinates.size());
+        for (BlockPos coordinate : coordinates) {
+            previousBlockStates.add(world.getBlockState(coordinate));
+        }
+
+        if (world.isRemote) {
+
+            BlockPreviewRenderer.onBlocksPlaced();
+
+            newBlockStates = blockStates;
+
+        } else {
+
+            //place blocks
+            for (int i = placeStartPos ? 0 : 1; i < coordinates.size(); i++) {
+                BlockPos blockPos = coordinates.get(i);
+                BlockState blockState = blockStates.get(i);
+                ItemStack itemStack = itemStacks.get(i);
+
+                if (world.isBlockPresent(blockPos)) {
+                    //check itemstack empty
+                    if (itemStack.isEmpty()) {
+                        //try to find new stack, otherwise continue
+                        itemStack = InventoryHelper.findItemStackInInventory(player, blockState.getBlock());
+                        if (itemStack.isEmpty()) continue;
+                    }
+                    SurvivalHelper.placeBlock(world, player, blockPos, blockState, itemStack, Direction.UP, hitVec, false, false, false);
+                }
+            }
+
+            //find actual new blockstates for undo
+            for (BlockPos coordinate : coordinates) {
+                newBlockStates.add(world.getBlockState(coordinate));
+            }
+        }
+
+        //Set first previousBlockState to empty if in NORMAL mode, to make undo/redo work
+        //(Block is placed by the time it gets here, and unplaced after this)
+        if (!placeStartPos) previousBlockStates.set(0, Blocks.AIR.getDefaultState());
+
+        //If all new blockstates are air then no use in adding it, no block was actually placed
+        //Can happen when e.g. placing one block in yourself
+        if (Collections.frequency(newBlockStates, Blocks.AIR.getDefaultState()) != newBlockStates.size()) {
+            //add to undo stack
+            BlockPos firstPos = startCoordinates.get(0);
+            BlockPos secondPos = startCoordinates.get(startCoordinates.size() - 1);
+            UndoRedo.addUndo(player, new BlockSet(coordinates, previousBlockStates, newBlockStates, hitVec, firstPos, secondPos));
+        }
+    }
+
+    public static void onBlockBroken(PlayerEntity player, List<BlockPos> startCoordinates, boolean breakStartPos) {
+        World world = player.world;
+
+        List<BlockPos> coordinates = findCoordinates(player, startCoordinates);
+
+        if (coordinates.isEmpty()) return;
+
+        //remember previous blockstates for undo
+        List<BlockState> previousBlockStates = new ArrayList<>(coordinates.size());
+        List<BlockState> newBlockStates = new ArrayList<>(coordinates.size());
+        for (BlockPos coordinate : coordinates) {
+            previousBlockStates.add(world.getBlockState(coordinate));
+        }
+
+        if (world.isRemote) {
+            BlockPreviewRenderer.onBlocksBroken();
+
+            //list of air blockstates
+            for (int i = 0; i < coordinates.size(); i++) {
+                newBlockStates.add(Blocks.AIR.getDefaultState());
+            }
+
+        } else {
+
+            //If the player is going to instabreak grass or a plant, only break other instabreaking things
+            boolean onlyInstaBreaking = !player.isCreative() &&
+                                        world.getBlockState(startCoordinates.get(0)).getBlockHardness(world, startCoordinates.get(0)) == 0f;
+
+            //break all those blocks
+            for (int i = breakStartPos ? 0 : 1; i < coordinates.size(); i++) {
+                BlockPos coordinate = coordinates.get(i);
+                if (world.isBlockPresent(coordinate) && !world.isAirBlock(coordinate)) {
+                    if (!onlyInstaBreaking || world.getBlockState(coordinate).getBlockHardness(world, coordinate) == 0f) {
+                        SurvivalHelper.breakBlock(world, player, coordinate, false);
+                    }
+                }
+            }
+
+            //find actual new blockstates for undo
+            for (BlockPos coordinate : coordinates) {
+                newBlockStates.add(world.getBlockState(coordinate));
+            }
+        }
+
+        //Set first newBlockState to empty if in NORMAL mode, to make undo/redo work
+        //(Block isn't broken yet by the time it gets here, and broken after this)
+        if (!breakStartPos) newBlockStates.set(0, Blocks.AIR.getDefaultState());
+
+        //add to undo stack
+        BlockPos firstPos = startCoordinates.get(0);
+        BlockPos secondPos = startCoordinates.get(startCoordinates.size() - 1);
+        Vec3d hitVec = new Vec3d(0.5, 0.5, 0.5);
+        UndoRedo.addUndo(player, new BlockSet(coordinates, previousBlockStates, newBlockStates, hitVec, firstPos, secondPos));
+
+    }
+
+    public static List<BlockPos> findCoordinates(PlayerEntity player, List<BlockPos> posList) {
+        List<BlockPos> coordinates = new ArrayList<>();
+        //Add current blocks being placed too
+        coordinates.addAll(posList);
+
+        //Find mirror/array/radial mirror coordinates for each blockpos
+        for (BlockPos blockPos : posList) {
+            List<BlockPos> arrayCoordinates = Array.findCoordinates(player, blockPos);
+            coordinates.addAll(arrayCoordinates);
+            coordinates.addAll(Mirror.findCoordinates(player, blockPos));
+            coordinates.addAll(RadialMirror.findCoordinates(player, blockPos));
+            //get mirror for each array coordinate
+            for (BlockPos coordinate : arrayCoordinates) {
+                coordinates.addAll(Mirror.findCoordinates(player, coordinate));
+                coordinates.addAll(RadialMirror.findCoordinates(player, coordinate));
+            }
+        }
+
+        return coordinates;
+    }
+
+    public static List<BlockPos> findCoordinates(PlayerEntity player, BlockPos blockPos) {
+        return findCoordinates(player, new ArrayList<>(Arrays.asList(blockPos)));
+    }
+
+    public static List<BlockState> findBlockStates(PlayerEntity player, List<BlockPos> posList, Vec3d hitVec, Direction facing, List<ItemStack> itemStacks) {
+        List<BlockState> blockStates = new ArrayList<>();
+        itemStacks.clear();
+
+        //Get itemstack
+        ItemStack itemStack = player.getHeldItem(Hand.MAIN_HAND);
+        if (itemStack.isEmpty() || !CompatHelper.isItemBlockProxy(itemStack)) {
+            itemStack = player.getHeldItem(Hand.OFF_HAND);
+        }
+        if (itemStack.isEmpty() || !CompatHelper.isItemBlockProxy(itemStack)) {
+            return blockStates;
+        }
+
+        //Get ItemBlock stack
+        ItemStack itemBlock = ItemStack.EMPTY;
+        if (itemStack.getItem() instanceof BlockItem) itemBlock = itemStack;
+        else itemBlock = CompatHelper.getItemBlockFromStack(itemStack);
+        ItemRandomizerBag.resetRandomness();
+
+        //Add blocks in posList first
+        for (BlockPos blockPos : posList) {
+            if (!(itemStack.getItem() instanceof BlockItem)) itemBlock = CompatHelper.getItemBlockFromStack(itemStack);
+            BlockState blockState = getBlockStateFromItem(itemBlock, player, blockPos, facing, hitVec, Hand.MAIN_HAND);
+            blockStates.add(blockState);
+            itemStacks.add(itemBlock);
+        }
+
+        for (BlockPos blockPos : posList) {
+            BlockState blockState = getBlockStateFromItem(itemBlock, player, blockPos, facing, hitVec, Hand.MAIN_HAND);
+
+            List<BlockState> arrayBlockStates = Array.findBlockStates(player, blockPos, blockState, itemStack, itemStacks);
+            blockStates.addAll(arrayBlockStates);
+            blockStates.addAll(Mirror.findBlockStates(player, blockPos, blockState, itemStack, itemStacks));
+            blockStates.addAll(RadialMirror.findBlockStates(player, blockPos, blockState, itemStack, itemStacks));
+            //add mirror for each array coordinate
+            List<BlockPos> arrayCoordinates = Array.findCoordinates(player, blockPos);
+            for (int i = 0; i < arrayCoordinates.size(); i++) {
+                BlockPos coordinate = arrayCoordinates.get(i);
+                BlockState blockState1 = arrayBlockStates.get(i);
+                blockStates.addAll(Mirror.findBlockStates(player, coordinate, blockState1, itemStack, itemStacks));
+                blockStates.addAll(RadialMirror.findBlockStates(player, coordinate, blockState1, itemStack, itemStacks));
+            }
+
+            //Adjust blockstates for torches and ladders etc to place on a valid side
+            //TODO optimize findCoordinates (done twice now)
+            //TODO fix mirror
+//            List<BlockPos> coordinates = findCoordinates(player, startPos);
+//            for (int i = 0; i < blockStates.size(); i++) {
+//                blockStates.set(i, blockStates.get(i).getBlock().getStateForPlacement(player.world, coordinates.get(i), facing,
+//                        (float) hitVec.x, (float) hitVec.y, (float) hitVec.z, itemStacks.get(i).getMetadata(), player, EnumHand.MAIN_HAND));
+//            }
+        }
+
+        return blockStates;
+    }
+
+    public static boolean isEnabled(ModifierSettingsManager.ModifierSettings modifierSettings, BlockPos startPos) {
+        return Mirror.isEnabled(modifierSettings.getMirrorSettings(), startPos) ||
+               Array.isEnabled(modifierSettings.getArraySettings()) ||
+               RadialMirror.isEnabled(modifierSettings.getRadialMirrorSettings(), startPos) ||
+               modifierSettings.doQuickReplace();
+    }
+
+    public static BlockState getBlockStateFromItem(ItemStack itemStack, PlayerEntity player, BlockPos blockPos, Direction facing, Vec3d hitVec, Hand hand) {
+        return Block.getBlockFromItem(itemStack.getItem()).getStateForPlacement(new BlockItemUseContext(new ItemUseContext(player, hand, new BlockRayTraceResult(hitVec, facing, blockPos, false))));
+    }
+
+    //Returns true if equal (or both null)
+    public static boolean compareCoordinates(List<BlockPos> coordinates1, List<BlockPos> coordinates2) {
+        if (coordinates1 == null && coordinates2 == null) return true;
+        if (coordinates1 == null || coordinates2 == null) return false;
+
+        //Check count, not actual values
+        if (coordinates1.size() == coordinates2.size()){
+            if (coordinates1.size() == 1){
+                return coordinates1.get(0).equals(coordinates2.get(0));
+            }
+            return true;
+        } else {
+            return false;
+        }
+
+//        return coordinates1.equals(coordinates2);
+    }
+}

src/main/java/nl/requios/effortlessbuilding/buildmodifier/Mirror.java

@@ -0,0 +1,228 @@
+package nl.requios.effortlessbuilding.buildmodifier;
+
+import net.minecraft.block.*;
+import net.minecraft.block.StairsBlock;
+import net.minecraft.block.DirectionalBlock;
+import net.minecraft.block.SlabBlock;
+import net.minecraft.block.BlockState;
+import net.minecraft.entity.player.PlayerEntity;
+import net.minecraft.item.ItemStack;
+import net.minecraft.state.properties.Half;
+import net.minecraft.state.properties.SlabType;
+import net.minecraft.util.Direction;
+import net.minecraft.util.Hand;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.math.Vec3d;
+import net.minecraftforge.items.IItemHandler;
+import nl.requios.effortlessbuilding.item.ItemRandomizerBag;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class Mirror {
+
+    public static class MirrorSettings {
+        public boolean enabled = false;
+        public Vec3d position = new Vec3d(0.5, 64.5, 0.5);
+        public boolean mirrorX = true, mirrorY = false, mirrorZ = false;
+        public int radius = 10;
+        public boolean drawLines = true, drawPlanes = true;
+
+        public MirrorSettings() {
+        }
+
+        public MirrorSettings(boolean mirrorEnabled, Vec3d position, boolean mirrorX, boolean mirrorY, boolean mirrorZ, int radius, boolean drawLines, boolean drawPlanes) {
+            this.enabled = mirrorEnabled;
+            this.position = position;
+            this.mirrorX = mirrorX;
+            this.mirrorY = mirrorY;
+            this.mirrorZ = mirrorZ;
+            this.radius = radius;
+            this.drawLines = drawLines;
+            this.drawPlanes = drawPlanes;
+        }
+
+        public int getReach() {
+            return radius * 2; //Change ModifierSettings#setReachUpgrade too
+        }
+    }
+    
+    public static List<BlockPos> findCoordinates(PlayerEntity player, BlockPos startPos) {
+        List<BlockPos> coordinates = new ArrayList<>();
+
+        //find mirrorsettings for the player
+        MirrorSettings m = ModifierSettingsManager.getModifierSettings(player).getMirrorSettings();
+        if (!isEnabled(m, startPos)) return coordinates;
+
+        if (m.mirrorX) coordinateMirrorX(m, startPos, coordinates);
+        if (m.mirrorY) coordinateMirrorY(m, startPos, coordinates);
+        if (m.mirrorZ) coordinateMirrorZ(m, startPos, coordinates);
+
+        return coordinates;
+    }
+
+    private static void coordinateMirrorX(MirrorSettings m, BlockPos oldBlockPos, List<BlockPos> coordinates) {
+        //find mirror position
+        double x = m.position.x + (m.position.x - oldBlockPos.getX() - 0.5);
+        BlockPos newBlockPos = new BlockPos(x, oldBlockPos.getY(), oldBlockPos.getZ());
+        coordinates.add(newBlockPos);
+
+        if (m.mirrorY) coordinateMirrorY(m, newBlockPos, coordinates);
+        if (m.mirrorZ) coordinateMirrorZ(m, newBlockPos, coordinates);
+    }
+
+    private static void coordinateMirrorY(MirrorSettings m, BlockPos oldBlockPos, List<BlockPos> coordinates) {
+        //find mirror position
+        double y = m.position.y + (m.position.y - oldBlockPos.getY() - 0.5);
+        BlockPos newBlockPos = new BlockPos(oldBlockPos.getX(), y, oldBlockPos.getZ());
+        coordinates.add(newBlockPos);
+
+        if (m.mirrorZ) coordinateMirrorZ(m, newBlockPos, coordinates);
+    }
+
+    private static void coordinateMirrorZ(MirrorSettings m, BlockPos oldBlockPos, List<BlockPos> coordinates) {
+        //find mirror position
+        double z = m.position.z + (m.position.z - oldBlockPos.getZ() - 0.5);
+        BlockPos newBlockPos = new BlockPos(oldBlockPos.getX(), oldBlockPos.getY(), z);
+        coordinates.add(newBlockPos);
+    }
+
+    public static List<BlockState> findBlockStates(PlayerEntity player, BlockPos startPos, BlockState blockState, ItemStack itemStack, List<ItemStack> itemStacks) {
+        List<BlockState> blockStates = new ArrayList<>();
+
+        //find mirrorsettings for the player
+        MirrorSettings m = ModifierSettingsManager.getModifierSettings(player).getMirrorSettings();
+        if (!isEnabled(m, startPos)) return blockStates;
+
+        //Randomizer bag synergy
+        IItemHandler bagInventory = null;
+        if (!itemStack.isEmpty() && itemStack.getItem() instanceof ItemRandomizerBag) {
+            bagInventory = ItemRandomizerBag.getBagInventory(itemStack);
+        }
+
+        if (m.mirrorX) blockStateMirrorX(player, m, startPos, blockState, bagInventory, itemStack, Hand.MAIN_HAND, blockStates, itemStacks);
+        if (m.mirrorY) blockStateMirrorY(player, m, startPos, blockState, bagInventory, itemStack, Hand.MAIN_HAND, blockStates, itemStacks);
+        if (m.mirrorZ) blockStateMirrorZ(player, m, startPos, blockState, bagInventory, itemStack, Hand.MAIN_HAND, blockStates, itemStacks);
+
+        return blockStates;
+    }
+
+    private static void blockStateMirrorX(PlayerEntity player, MirrorSettings m, BlockPos oldBlockPos, BlockState oldBlockState,
+                                          IItemHandler bagInventory, ItemStack itemStack, Hand hand, List<BlockState> blockStates, List<ItemStack> itemStacks) {
+        //find mirror position
+        double x = m.position.x + (m.position.x - oldBlockPos.getX() - 0.5);
+        BlockPos newBlockPos = new BlockPos(x, oldBlockPos.getY(), oldBlockPos.getZ());
+
+        //Randomizer bag synergy
+        if (bagInventory != null) {
+            itemStack = ItemRandomizerBag.pickRandomStack(bagInventory);
+            oldBlockState = BuildModifiers.getBlockStateFromItem(itemStack, player, oldBlockPos, Direction.UP, new Vec3d(0, 0, 0), hand);
+        }
+
+        //Find blockstate
+        BlockState newBlockState = oldBlockState == null ? null : oldBlockState.mirror(net.minecraft.util.Mirror.FRONT_BACK);
+
+        //Store blockstate and itemstack
+        blockStates.add(newBlockState);
+        itemStacks.add(itemStack);
+
+        if (m.mirrorY) blockStateMirrorY(player, m, newBlockPos, newBlockState, bagInventory, itemStack, hand, blockStates, itemStacks);
+        if (m.mirrorZ) blockStateMirrorZ(player, m, newBlockPos, newBlockState, bagInventory, itemStack, hand, blockStates, itemStacks);
+    }
+
+    private static void blockStateMirrorY(PlayerEntity player, MirrorSettings m, BlockPos oldBlockPos, BlockState oldBlockState,
+                                          IItemHandler bagInventory, ItemStack itemStack, Hand hand, List<BlockState> blockStates, List<ItemStack> itemStacks) {
+        //find mirror position
+        double y = m.position.y + (m.position.y - oldBlockPos.getY() - 0.5);
+        BlockPos newBlockPos = new BlockPos(oldBlockPos.getX(), y, oldBlockPos.getZ());
+
+        //Randomizer bag synergy
+        if (bagInventory != null) {
+            itemStack = ItemRandomizerBag.pickRandomStack(bagInventory);
+            oldBlockState = BuildModifiers.getBlockStateFromItem(itemStack, player, oldBlockPos, Direction.UP, new Vec3d(0, 0, 0), hand);
+        }
+
+        //Find blockstate
+        BlockState newBlockState = oldBlockState == null ? null : getVerticalMirror(oldBlockState);
+
+        //Store blockstate and itemstack
+        blockStates.add(newBlockState);
+        itemStacks.add(itemStack);
+
+        if (m.mirrorZ) blockStateMirrorZ(player, m, newBlockPos, newBlockState, bagInventory, itemStack, hand, blockStates, itemStacks);
+    }
+
+    private static void blockStateMirrorZ(PlayerEntity player, MirrorSettings m, BlockPos oldBlockPos, BlockState oldBlockState,
+                                          IItemHandler bagInventory, ItemStack itemStack, Hand hand, List<BlockState> blockStates, List<ItemStack> itemStacks) {
+        //find mirror position
+        double z = m.position.z + (m.position.z - oldBlockPos.getZ() - 0.5);
+        BlockPos newBlockPos = new BlockPos(oldBlockPos.getX(), oldBlockPos.getY(), z);
+
+        //Randomizer bag synergy
+        if (bagInventory != null) {
+            itemStack = ItemRandomizerBag.pickRandomStack(bagInventory);
+            oldBlockState = BuildModifiers.getBlockStateFromItem(itemStack, player, oldBlockPos, Direction.UP, new Vec3d(0, 0, 0), hand);
+        }
+
+        //Find blockstate
+        BlockState newBlockState = oldBlockState == null ? null : oldBlockState.mirror(net.minecraft.util.Mirror.LEFT_RIGHT);
+
+        //Store blockstate and itemstack
+        blockStates.add(newBlockState);
+        itemStacks.add(itemStack);
+    }
+
+    public static boolean isEnabled(MirrorSettings m, BlockPos startPos) {
+        if (m == null || !m.enabled || (!m.mirrorX && !m.mirrorY && !m.mirrorZ)) return false;
+
+        //within mirror distance
+        if (startPos.getX() + 0.5 < m.position.x - m.radius || startPos.getX() + 0.5 > m.position.x + m.radius ||
+            startPos.getY() + 0.5 < m.position.y - m.radius || startPos.getY() + 0.5 > m.position.y + m.radius ||
+            startPos.getZ() + 0.5 < m.position.z - m.radius || startPos.getZ() + 0.5 > m.position.z + m.radius)
+            return false;
+
+        return true;
+    }
+
+    private static BlockState getVerticalMirror(BlockState blockState) {
+        //Stairs
+        if (blockState.getBlock() instanceof StairsBlock) {
+            if (blockState.get(StairsBlock.HALF) == Half.BOTTOM) {
+                return blockState.with(StairsBlock.HALF, Half.TOP);
+            } else {
+                return blockState.with(StairsBlock.HALF, Half.BOTTOM);
+            }
+        }
+
+        //Slabs
+        if (blockState.getBlock() instanceof SlabBlock) {
+            if (blockState.get(SlabBlock.TYPE) == SlabType.DOUBLE) {
+                return blockState;
+            } else if (blockState.get(SlabBlock.TYPE) == SlabType.BOTTOM) {
+                return blockState.with(SlabBlock.TYPE, SlabType.TOP);
+            } else {
+                return blockState.with(SlabBlock.TYPE, SlabType.BOTTOM);
+            }
+        }
+
+        //Buttons, endrod, observer, piston
+        if (blockState.getBlock() instanceof DirectionalBlock) {
+            if (blockState.get(DirectionalBlock.FACING) == Direction.DOWN) {
+                return blockState.with(DirectionalBlock.FACING, Direction.UP);
+            } else if (blockState.get(DirectionalBlock.FACING) == Direction.UP) {
+                return blockState.with(DirectionalBlock.FACING, Direction.DOWN);
+            }
+        }
+
+        //Dispenser, dropper
+        if (blockState.getBlock() instanceof DispenserBlock) {
+            if (blockState.get(DispenserBlock.FACING) == Direction.DOWN) {
+                return blockState.with(DispenserBlock.FACING, Direction.UP);
+            } else if (blockState.get(DispenserBlock.FACING) == Direction.UP) {
+                return blockState.with(DispenserBlock.FACING, Direction.DOWN);
+            }
+        }
+
+        return blockState;
+    }
+}

src/main/java/nl/requios/effortlessbuilding/buildmodifier/ModifierSettingsManager.java

@@ -0,0 +1,207 @@
+package nl.requios.effortlessbuilding.buildmodifier;
+
+import net.minecraft.entity.player.PlayerEntity;
+import net.minecraft.entity.player.ServerPlayerEntity;
+import net.minecraftforge.common.util.LazyOptional;
+import net.minecraftforge.fml.common.Mod;
+import net.minecraftforge.fml.network.PacketDistributor;
+import nl.requios.effortlessbuilding.BuildConfig;
+import nl.requios.effortlessbuilding.EffortlessBuilding;
+import nl.requios.effortlessbuilding.capability.ModifierCapabilityManager;
+import nl.requios.effortlessbuilding.helper.ReachHelper;
+import nl.requios.effortlessbuilding.network.ModifierSettingsMessage;
+import nl.requios.effortlessbuilding.network.PacketHandler;
+
+import javax.annotation.Nonnull;
+
+@Mod.EventBusSubscriber
+public class ModifierSettingsManager {
+
+    //Retrieves the buildsettings of a player through the modifierCapability capability
+    //Never returns null
+    @Nonnull
+    public static ModifierSettings getModifierSettings(PlayerEntity player){
+        LazyOptional<ModifierCapabilityManager.IModifierCapability> modifierCapability =
+                player.getCapability(ModifierCapabilityManager.modifierCapability, null);
+
+        if (modifierCapability.isPresent()) {
+            ModifierCapabilityManager.IModifierCapability capability = modifierCapability.orElse(null);
+            if (capability.getModifierData() == null) {
+                capability.setModifierData(new ModifierSettings());
+            }
+            return capability.getModifierData();
+        }
+
+        //Player does not have modifierCapability capability
+        //Return dummy settings
+        return new ModifierSettings();
+//        throw new IllegalArgumentException("Player does not have modifierCapability capability");
+    }
+
+    public static void setModifierSettings(PlayerEntity player, ModifierSettings modifierSettings) {
+        if (player == null) {
+            EffortlessBuilding.log("Cannot set buildsettings, player is null");
+            return;
+        }
+
+        LazyOptional<ModifierCapabilityManager.IModifierCapability> modifierCapability =
+                player.getCapability(ModifierCapabilityManager.modifierCapability, null);
+
+        modifierCapability.ifPresent((capability) -> {
+            capability.setModifierData(modifierSettings);
+        });
+
+        if (!modifierCapability.isPresent()) {
+            EffortlessBuilding.log(player, "Saving buildsettings failed.");
+        }
+    }
+
+    public static String sanitize(ModifierSettings modifierSettings, PlayerEntity player) {
+        int maxReach = ReachHelper.getMaxReach(player);
+        String error = "";
+
+        //Mirror settings
+        Mirror.MirrorSettings m = modifierSettings.getMirrorSettings();
+        if (m.radius < 1) {
+            m.radius = 1;
+            error += "Mirror size has to be at least 1. This has been corrected. ";
+        }
+        if (m.getReach() > maxReach) {
+            m.radius = maxReach / 2;
+            error += "Mirror exceeds your maximum reach of " + (maxReach / 2) + ". Radius has been set to "+ (maxReach / 2) + ". ";
+        }
+
+        //Array settings
+        Array.ArraySettings a = modifierSettings.getArraySettings();
+        if (a.count < 0) {
+            a.count = 0;
+            error += "Array count may not be negative. It has been reset to 0.";
+        }
+
+        if (a.getReach() > maxReach) {
+            a.count = 0;
+            error += "Array exceeds your maximum reach of " + maxReach + ". Array count has been reset to 0. ";
+        }
+
+        //Radial mirror settings
+        RadialMirror.RadialMirrorSettings r = modifierSettings.getRadialMirrorSettings();
+        if (r.slices < 2) {
+            r.slices = 2;
+            error += "Radial mirror needs to have at least 2 slices. Slices has been set to 2.";
+        }
+
+        if (r.radius < 1) {
+            r.radius = 1;
+            error += "Radial mirror radius has to be at least 1. This has been corrected. ";
+        }
+        if (r.getReach() > maxReach) {
+            r.radius = maxReach / 2;
+            error += "Radial mirror exceeds your maximum reach of " + (maxReach / 2) + ". Radius has been set to "+ (maxReach / 2) + ". ";
+        }
+
+        //Other
+        if (modifierSettings.reachUpgrade < 0) {
+            modifierSettings.reachUpgrade = 0;
+        }
+        if (modifierSettings.reachUpgrade > 3) {
+            modifierSettings.reachUpgrade = 3;
+        }
+
+        return error;
+    }
+
+    public static class ModifierSettings {
+        private Mirror.MirrorSettings mirrorSettings;
+        private Array.ArraySettings arraySettings;
+        private RadialMirror.RadialMirrorSettings radialMirrorSettings;
+        private boolean quickReplace = false;
+        private int reachUpgrade = 0;
+
+        public ModifierSettings() {
+            mirrorSettings = new Mirror.MirrorSettings();
+            arraySettings = new Array.ArraySettings();
+            radialMirrorSettings = new RadialMirror.RadialMirrorSettings();
+        }
+
+        public ModifierSettings(Mirror.MirrorSettings mirrorSettings, Array.ArraySettings arraySettings,
+                                RadialMirror.RadialMirrorSettings radialMirrorSettings, boolean quickReplace, int reachUpgrade) {
+            this.mirrorSettings = mirrorSettings;
+            this.arraySettings = arraySettings;
+            this.radialMirrorSettings = radialMirrorSettings;
+            this.quickReplace = quickReplace;
+            this.reachUpgrade = reachUpgrade;
+        }
+
+        public Mirror.MirrorSettings getMirrorSettings() {
+            if (this.mirrorSettings == null) this.mirrorSettings = new Mirror.MirrorSettings();
+            return this.mirrorSettings;
+        }
+
+        public void setMirrorSettings(Mirror.MirrorSettings mirrorSettings) {
+            if (mirrorSettings == null) return;
+            this.mirrorSettings = mirrorSettings;
+        }
+
+        public Array.ArraySettings getArraySettings() {
+            if (this.arraySettings == null) this.arraySettings = new Array.ArraySettings();
+            return this.arraySettings;
+        }
+
+        public void setArraySettings(Array.ArraySettings arraySettings) {
+            if (arraySettings == null) return;
+            this.arraySettings = arraySettings;
+        }
+
+        public RadialMirror.RadialMirrorSettings getRadialMirrorSettings() {
+            if (this.radialMirrorSettings == null) this.radialMirrorSettings = new RadialMirror.RadialMirrorSettings();
+            return this.radialMirrorSettings;
+        }
+
+        public void setRadialMirrorSettings(RadialMirror.RadialMirrorSettings radialMirrorSettings) {
+            if (radialMirrorSettings == null) return;
+            this.radialMirrorSettings = radialMirrorSettings;
+        }
+
+        public boolean doQuickReplace() {
+            return quickReplace;
+        }
+
+        public void setQuickReplace(boolean quickReplace) {
+            this.quickReplace = quickReplace;
+        }
+
+        public int getReachUpgrade() {
+            return reachUpgrade;
+        }
+
+        public void setReachUpgrade(int reachUpgrade) {
+            this.reachUpgrade = reachUpgrade;
+            //Set mirror radius to max
+            int reach = 10;
+            switch (reachUpgrade) {
+                case 0: reach = BuildConfig.reach.maxReachLevel0.get(); break;
+                case 1: reach =  BuildConfig.reach.maxReachLevel1.get(); break;
+                case 2: reach =  BuildConfig.reach.maxReachLevel2.get(); break;
+                case 3: reach =  BuildConfig.reach.maxReachLevel3.get(); break;
+            }
+
+            if (this.mirrorSettings != null)
+                this.mirrorSettings.radius = reach / 2;
+            if (this.radialMirrorSettings != null)
+                this.radialMirrorSettings.radius = reach / 2;
+        }
+    }
+
+    public static void handleNewPlayer(PlayerEntity player){
+        //Makes sure player has modifier settings (if it doesnt it will create it)
+        getModifierSettings(player);
+
+        //Only on server
+        if (!player.world.isRemote) {
+            //Send to client
+            ModifierSettingsMessage msg = new ModifierSettingsMessage(getModifierSettings(player));
+            PacketHandler.INSTANCE.send(PacketDistributor.PLAYER.with(() -> (ServerPlayerEntity) player), msg);
+        }
+    }
+}
+

src/main/java/nl/requios/effortlessbuilding/buildmodifier/RadialMirror.java

@@ -0,0 +1,195 @@
+package nl.requios.effortlessbuilding.buildmodifier;
+
+import net.minecraft.block.BlockState;
+import net.minecraft.entity.player.PlayerEntity;
+import net.minecraft.item.ItemStack;
+import net.minecraft.util.Direction;
+import net.minecraft.util.Hand;
+import net.minecraft.util.Mirror;
+import net.minecraft.util.Rotation;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.math.MathHelper;
+import net.minecraft.util.math.Vec3d;
+import net.minecraftforge.items.IItemHandler;
+import nl.requios.effortlessbuilding.item.ItemRandomizerBag;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class RadialMirror {
+
+    public static class RadialMirrorSettings {
+        public boolean enabled = false;
+        public Vec3d position = new Vec3d(0.5, 64.5, 0.5);
+        public int slices = 4;
+        public boolean alternate = false;
+        public int radius = 20;
+        public boolean drawLines = true, drawPlanes = false;
+
+        public RadialMirrorSettings() {
+        }
+
+        public RadialMirrorSettings(boolean enabled, Vec3d position, int slices, boolean alternate, int radius, boolean drawLines, boolean drawPlanes) {
+            this.enabled = enabled;
+            this.position = position;
+            this.slices = slices;
+            this.alternate = alternate;
+            this.radius = radius;
+            this.drawLines = drawLines;
+            this.drawPlanes = drawPlanes;
+        }
+
+        public int getReach() {
+            return radius * 2;
+        }
+    }
+
+    public static List<BlockPos> findCoordinates(PlayerEntity player, BlockPos startPos) {
+        List<BlockPos> coordinates = new ArrayList<>();
+
+        //find radial mirror settings for the player
+        RadialMirrorSettings r = ModifierSettingsManager.getModifierSettings(player).getRadialMirrorSettings();
+        if (!isEnabled(r, startPos)) return coordinates;
+
+        //get angle between slices
+        double sliceAngle = 2 * Math.PI / r.slices;
+
+        Vec3d startVec = new Vec3d(startPos.getX() + 0.5f, startPos.getY() + 0.5f, startPos.getZ() + 0.5f);
+        Vec3d relStartVec = startVec.subtract(r.position);
+
+        double startAngleToCenter = MathHelper.atan2(relStartVec.x, relStartVec.z);
+        if (startAngleToCenter < 0) startAngleToCenter += Math.PI;
+        double startAngleInSlice = startAngleToCenter % sliceAngle;
+
+        for (int i = 1; i < r.slices; i++) {
+            double curAngle = sliceAngle * i;
+
+            //alternate mirroring of slices
+            if (r.alternate && i%2 == 1) {
+                curAngle = curAngle - startAngleInSlice + (sliceAngle - startAngleInSlice);
+            }
+
+            Vec3d relNewVec = relStartVec.rotateYaw((float) curAngle);
+            BlockPos newBlockPos = new BlockPos(r.position.add(relNewVec));
+            if (!coordinates.contains(newBlockPos) && !newBlockPos.equals(startPos)) coordinates.add(newBlockPos);
+        }
+
+        return coordinates;
+    }
+
+    public static List<BlockState> findBlockStates(PlayerEntity player, BlockPos startPos, BlockState blockState, ItemStack itemStack, List<ItemStack> itemStacks) {
+        List<BlockState> blockStates = new ArrayList<>();
+        List<BlockPos> coordinates = new ArrayList<>(); //to keep track of duplicates
+
+        //find radial mirror settings for the player that placed the block
+        RadialMirrorSettings r = ModifierSettingsManager.getModifierSettings(player).getRadialMirrorSettings();
+        if (!isEnabled(r, startPos)) return blockStates;
+
+
+        //get angle between slices
+        double sliceAngle = 2 * Math.PI / r.slices;
+
+        Vec3d startVec = new Vec3d(startPos.getX() + 0.5f, startPos.getY() + 0.5f, startPos.getZ() + 0.5f);
+        Vec3d relStartVec = startVec.subtract(r.position);
+
+        double startAngleToCenter = MathHelper.atan2(relStartVec.x, relStartVec.z);
+        double startAngleToCenterMod = startAngleToCenter < 0 ? startAngleToCenter + Math.PI : startAngleToCenter;
+        double startAngleInSlice = startAngleToCenterMod % sliceAngle;
+
+        //Rotate the original blockstate
+        blockState = rotateOriginalBlockState(startAngleToCenter, blockState);
+
+        //Randomizer bag synergy
+        IItemHandler bagInventory = null;
+        if (!itemStack.isEmpty() && itemStack.getItem() instanceof ItemRandomizerBag) {
+            bagInventory = ItemRandomizerBag.getBagInventory(itemStack);
+        }
+
+        BlockState newBlockState;
+        for (int i = 1; i < r.slices; i++) {
+            newBlockState = blockState;
+            double curAngle = sliceAngle * i;
+
+            //alternate mirroring of slices
+            if (r.alternate && i%2 == 1) {
+                curAngle = curAngle - startAngleInSlice + (sliceAngle - startAngleInSlice);
+            }
+
+            Vec3d relNewVec = relStartVec.rotateYaw((float) curAngle);
+            BlockPos newBlockPos = new BlockPos(r.position.add(relNewVec));
+            if (coordinates.contains(newBlockPos) || newBlockPos.equals(startPos)) continue; //filter out duplicates
+            coordinates.add(newBlockPos);
+
+            //Randomizer bag synergy
+            if (bagInventory != null) {
+                itemStack = ItemRandomizerBag.pickRandomStack(bagInventory);
+                newBlockState = BuildModifiers
+                        .getBlockStateFromItem(itemStack, player, startPos, Direction.UP, new Vec3d(0, 0, 0), Hand.MAIN_HAND);
+
+                newBlockState = rotateOriginalBlockState(startAngleToCenter, newBlockState);
+            }
+
+            //rotate
+            newBlockState = rotateBlockState(relNewVec, newBlockState, r.alternate && i%2 == 1);
+
+            blockStates.add(newBlockState);
+            itemStacks.add(itemStack);
+        }
+
+        return blockStates;
+    }
+
+    private static BlockState rotateOriginalBlockState(double startAngleToCenter, BlockState blockState) {
+        BlockState newBlockState = blockState;
+
+        if (startAngleToCenter < -0.751 * Math.PI || startAngleToCenter > 0.749 * Math.PI) {
+            newBlockState = blockState.rotate(Rotation.CLOCKWISE_180);
+        } else if (startAngleToCenter < -0.251 * Math.PI) {
+            newBlockState = blockState.rotate(Rotation.COUNTERCLOCKWISE_90);
+        } else if (startAngleToCenter > 0.249 * Math.PI) {
+            newBlockState = blockState.rotate(Rotation.CLOCKWISE_90);
+        }
+
+        return newBlockState;
+    }
+
+    private static BlockState rotateBlockState(Vec3d relVec, BlockState blockState, boolean alternate) {
+        BlockState newBlockState;
+        double angleToCenter = MathHelper.atan2(relVec.x, relVec.z); //between -PI and PI
+
+        if (angleToCenter < -0.751 * Math.PI || angleToCenter > 0.749 * Math.PI) {
+            newBlockState = blockState.rotate(Rotation.CLOCKWISE_180);
+            if (alternate) {
+                newBlockState = newBlockState.mirror(Mirror.FRONT_BACK);
+            }
+        } else if (angleToCenter < -0.251 * Math.PI) {
+            newBlockState = blockState.rotate(Rotation.CLOCKWISE_90);
+            if (alternate) {
+                newBlockState = newBlockState.mirror(Mirror.LEFT_RIGHT);
+            }
+        } else if (angleToCenter > 0.249 * Math.PI) {
+            newBlockState = blockState.rotate(Rotation.COUNTERCLOCKWISE_90);
+            if (alternate) {
+                newBlockState = newBlockState.mirror(Mirror.LEFT_RIGHT);
+            }
+        } else {
+            newBlockState = blockState;
+            if (alternate) {
+                newBlockState = newBlockState.mirror(Mirror.FRONT_BACK);
+            }
+        }
+
+        return newBlockState;
+    }
+
+    public static boolean isEnabled(RadialMirrorSettings r, BlockPos startPos) {
+        if (r == null || !r.enabled) return false;
+
+        if (new Vec3d(startPos.getX() + 0.5, startPos.getY() + 0.5, startPos.getZ() + 0.5).subtract(r.position).lengthSquared() >
+            r.radius * r.radius)
+            return false;
+
+        return true;
+    }
+
+}

src/main/java/nl/requios/effortlessbuilding/buildmodifier/UndoRedo.java

@@ -0,0 +1,243 @@
+package nl.requios.effortlessbuilding.buildmodifier;
+
+import net.minecraft.block.Block;
+import net.minecraft.block.BlockState;
+import net.minecraft.block.Blocks;
+import net.minecraft.entity.player.PlayerEntity;
+import net.minecraft.item.BlockItem;
+import net.minecraft.item.Item;
+import net.minecraft.item.ItemStack;
+import net.minecraft.util.Direction;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.math.Vec3d;
+import net.minecraft.world.server.ServerWorld;
+import net.minecraft.world.storage.loot.LootContext;
+import net.minecraft.world.storage.loot.LootParameterSet;
+import nl.requios.effortlessbuilding.BuildConfig;
+import nl.requios.effortlessbuilding.EffortlessBuilding;
+import nl.requios.effortlessbuilding.helper.FixedStack;
+import nl.requios.effortlessbuilding.helper.InventoryHelper;
+import nl.requios.effortlessbuilding.helper.SurvivalHelper;
+import nl.requios.effortlessbuilding.render.BlockPreviewRenderer;
+
+import java.util.*;
+
+public class UndoRedo {
+
+    //Undo and redo stacks per player
+    //Gets added to twice in singleplayer (server and client) if not careful. So separate stacks.
+    private static Map<UUID, FixedStack<BlockSet>> undoStacksClient = new HashMap<>();
+    private static Map<UUID, FixedStack<BlockSet>> undoStacksServer = new HashMap<>();
+    private static Map<UUID, FixedStack<BlockSet>> redoStacksClient = new HashMap<>();
+    private static Map<UUID, FixedStack<BlockSet>> redoStacksServer = new HashMap<>();
+
+    //add to undo stack
+    public static void addUndo(PlayerEntity player, BlockSet blockSet) {
+        Map<UUID, FixedStack<BlockSet>> undoStacks = player.world.isRemote ? undoStacksClient : undoStacksServer;
+
+        //Assert coordinates is as long as previous and new blockstate lists
+        if (blockSet.getCoordinates().size() != blockSet.getPreviousBlockStates().size() ||
+                blockSet.getCoordinates().size() != blockSet.getNewBlockStates().size()) {
+            EffortlessBuilding.logger.error("Coordinates and blockstate lists are not equal length. Coordinates: {}. Previous blockstates: {}. New blockstates: {}.",
+                    blockSet.getCoordinates().size(), blockSet.getPreviousBlockStates().size(), blockSet.getNewBlockStates().size());
+        }
+
+        //Warn if previous and new blockstate are equal
+        //Can happen in a lot of valid cases
+//        for (int i = 0; i < blockSet.getCoordinates().size(); i++) {
+//            if (blockSet.getPreviousBlockStates().get(i).equals(blockSet.getNewBlockStates().get(i))) {
+//                EffortlessBuilding.logger.warn("Previous and new blockstates are equal at index {}. Blockstate: {}.",
+//                        i, blockSet.getPreviousBlockStates().get(i));
+//            }
+//        }
+
+        //If no stack exists, make one
+        if (!undoStacks.containsKey(player.getUniqueID())) {
+            undoStacks.put(player.getUniqueID(), new FixedStack<>(new BlockSet[BuildConfig.survivalBalancers.undoStackSize.get()]));
+        }
+
+        undoStacks.get(player.getUniqueID()).push(blockSet);
+    }
+
+    private static void addRedo(PlayerEntity player, BlockSet blockSet) {
+        Map<UUID, FixedStack<BlockSet>> redoStacks = player.world.isRemote ? redoStacksClient : redoStacksServer;
+
+        //(No asserts necessary, it's private)
+
+        //If no stack exists, make one
+        if (!redoStacks.containsKey(player.getUniqueID())) {
+            redoStacks.put(player.getUniqueID(), new FixedStack<>(new BlockSet[BuildConfig.survivalBalancers.undoStackSize.get()]));
+        }
+
+        redoStacks.get(player.getUniqueID()).push(blockSet);
+    }
+
+    public static boolean undo(PlayerEntity player) {
+        Map<UUID, FixedStack<BlockSet>> undoStacks = player.world.isRemote ? undoStacksClient : undoStacksServer;
+
+        if (!undoStacks.containsKey(player.getUniqueID())) return false;
+
+        FixedStack<BlockSet> undoStack = undoStacks.get(player.getUniqueID());
+
+        if (undoStack.isEmpty()) return false;
+
+        BlockSet blockSet = undoStack.pop();
+        List<BlockPos> coordinates = blockSet.getCoordinates();
+        List<BlockState> previousBlockStates = blockSet.getPreviousBlockStates();
+        List<BlockState> newBlockStates = blockSet.getNewBlockStates();
+        Vec3d hitVec = blockSet.getHitVec();
+
+        //Find up to date itemstacks in player inventory
+        List<ItemStack> itemStacks = findItemStacksInInventory(player, previousBlockStates);
+
+        if (player.world.isRemote) {
+            BlockPreviewRenderer.onBlocksBroken(coordinates, itemStacks, newBlockStates, blockSet.getSecondPos(), blockSet.getFirstPos());
+        } else {
+            //break all those blocks, reset to what they were
+            for (int i = 0; i < coordinates.size(); i++) {
+                BlockPos coordinate = coordinates.get(i);
+                ItemStack itemStack = itemStacks.get(i);
+
+                if (previousBlockStates.get(i).equals(newBlockStates.get(i))) continue;
+
+                //get blockstate from itemstack
+                BlockState previousBlockState = Blocks.AIR.getDefaultState();
+                if (itemStack.getItem() instanceof BlockItem) {
+                    previousBlockState = ((BlockItem) itemStack.getItem()).getBlock().getDefaultState();
+                }
+
+                if (player.world.isBlockPresent(coordinate)) {
+                    //check itemstack empty
+                    if (itemStack.isEmpty()) {
+                        itemStack = findItemStackInInventory(player, previousBlockStates.get(i));
+                        //get blockstate from new itemstack
+                        if (!itemStack.isEmpty() && itemStack.getItem() instanceof BlockItem) {
+                            previousBlockState = ((BlockItem) itemStack.getItem()).getBlock().getDefaultState();
+                        } else {
+                            if (previousBlockStates.get(i).getBlock() != Blocks.AIR)
+                                EffortlessBuilding.logTranslate(player, "", previousBlockStates.get(i).getBlock().getTranslationKey(), " not found in inventory", true);
+                            previousBlockState = Blocks.AIR.getDefaultState();
+                        }
+                    }
+                    if (itemStack.isEmpty()) SurvivalHelper.breakBlock(player.world, player, coordinate, true);
+                    //if previousBlockState is air, placeBlock will set it to air
+                    SurvivalHelper.placeBlock(player.world, player, coordinate, previousBlockState, itemStack, Direction.UP, hitVec, true, false, false);
+                }
+            }
+        }
+
+        //add to redo
+        addRedo(player, blockSet);
+
+        return true;
+    }
+
+    public static boolean redo(PlayerEntity player) {
+        Map<UUID, FixedStack<BlockSet>> redoStacks = player.world.isRemote ? redoStacksClient : redoStacksServer;
+
+        if (!redoStacks.containsKey(player.getUniqueID())) return false;
+
+        FixedStack<BlockSet> redoStack = redoStacks.get(player.getUniqueID());
+
+        if (redoStack.isEmpty()) return false;
+
+        BlockSet blockSet = redoStack.pop();
+        List<BlockPos> coordinates = blockSet.getCoordinates();
+        List<BlockState> previousBlockStates = blockSet.getPreviousBlockStates();
+        List<BlockState> newBlockStates = blockSet.getNewBlockStates();
+        Vec3d hitVec = blockSet.getHitVec();
+
+        //Find up to date itemstacks in player inventory
+        List<ItemStack> itemStacks = findItemStacksInInventory(player, newBlockStates);
+
+        if (player.world.isRemote) {
+            BlockPreviewRenderer.onBlocksPlaced(coordinates, itemStacks, newBlockStates, blockSet.getFirstPos(), blockSet.getSecondPos());
+        } else {
+            //place blocks
+            for (int i = 0; i < coordinates.size(); i++) {
+                BlockPos coordinate = coordinates.get(i);
+                ItemStack itemStack = itemStacks.get(i);
+
+                if (previousBlockStates.get(i).equals(newBlockStates.get(i))) continue;
+
+                //get blockstate from itemstack
+                BlockState newBlockState = Blocks.AIR.getDefaultState();
+                if (itemStack.getItem() instanceof BlockItem) {
+                    newBlockState = ((BlockItem) itemStack.getItem()).getBlock().getDefaultState();
+                }
+
+                if (player.world.isBlockPresent(coordinate)) {
+                    //check itemstack empty
+                    if (itemStack.isEmpty()) {
+                        itemStack = findItemStackInInventory(player, newBlockStates.get(i));
+                        //get blockstate from new itemstack
+                        if (!itemStack.isEmpty() && itemStack.getItem() instanceof BlockItem) {
+                            newBlockState = ((BlockItem) itemStack.getItem()).getBlock().getDefaultState();
+                        } else {
+                            if (newBlockStates.get(i).getBlock() != Blocks.AIR)
+                                EffortlessBuilding.logTranslate(player, "", newBlockStates.get(i).getBlock().getTranslationKey(), " not found in inventory", true);
+                            newBlockState = Blocks.AIR.getDefaultState();
+                        }
+                    }
+                    if (itemStack.isEmpty()) SurvivalHelper.breakBlock(player.world, player, coordinate, true);
+                    SurvivalHelper.placeBlock(player.world, player, coordinate, newBlockState, itemStack, Direction.UP, hitVec, true, false, false);
+                }
+            }
+        }
+
+        //add to undo
+        addUndo(player, blockSet);
+
+        return true;
+    }
+
+    public static void clear(PlayerEntity player) {
+        Map<UUID, FixedStack<BlockSet>> undoStacks = player.world.isRemote ? undoStacksClient : undoStacksServer;
+        Map<UUID, FixedStack<BlockSet>> redoStacks = player.world.isRemote ? redoStacksClient : redoStacksServer;
+        if (undoStacks.containsKey(player.getUniqueID())) {
+            undoStacks.get(player.getUniqueID()).clear();
+        }
+        if (redoStacks.containsKey(player.getUniqueID())) {
+            redoStacks.get(player.getUniqueID()).clear();
+        }
+    }
+
+    private static List<ItemStack> findItemStacksInInventory(PlayerEntity player, List<BlockState> blockStates) {
+        List<ItemStack> itemStacks = new ArrayList<>(blockStates.size());
+        for (BlockState blockState : blockStates) {
+            itemStacks.add(findItemStackInInventory(player, blockState));
+        }
+        return itemStacks;
+    }
+
+    private static ItemStack findItemStackInInventory(PlayerEntity player, BlockState blockState) {
+        ItemStack itemStack = ItemStack.EMPTY;
+        if (blockState == null) return itemStack;
+
+        //First try previousBlockStates
+        //TODO try to find itemstack with right blockstate first
+        // then change line 103 back (get state from item)
+        itemStack = InventoryHelper.findItemStackInInventory(player, blockState.getBlock());
+
+
+        //then anything it drops
+        if (itemStack.isEmpty()) {
+            //Cannot check drops on clientside because loot tables are server only
+            if (!player.world.isRemote)
+            {
+                List<ItemStack> itemsDropped = Block.getDrops(blockState, (ServerWorld) player.world, BlockPos.ZERO, null);
+                for (ItemStack itemStackDropped : itemsDropped) {
+                    if (itemStackDropped.getItem() instanceof BlockItem) {
+                        Block block = ((BlockItem) itemStackDropped.getItem()).getBlock();
+                        itemStack = InventoryHelper.findItemStackInInventory(player, block);
+                    }
+                }
+            }
+        }
+
+        //then air
+        //(already empty)
+
+        return itemStack;
+    }
+}

src/main/java/nl/requios/effortlessbuilding/capability/BuildModifierCapability.java

@@ -1,138 +0,0 @@
-package nl.requios.effortlessbuilding.capability;
-
-import net.minecraft.nbt.NBTBase;
-import net.minecraft.nbt.NBTTagCompound;
-import net.minecraft.util.EnumFacing;
-import net.minecraft.util.math.BlockPos;
-import net.minecraft.util.math.Vec3d;
-import net.minecraftforge.common.capabilities.Capability;
-import net.minecraftforge.common.capabilities.CapabilityInject;
-import net.minecraftforge.common.capabilities.ICapabilitySerializable;
-import net.minecraftforge.event.entity.player.PlayerEvent;
-import net.minecraftforge.fml.common.Mod;
-import net.minecraftforge.fml.common.eventhandler.SubscribeEvent;
-import nl.requios.effortlessbuilding.Array;
-import nl.requios.effortlessbuilding.BuildSettingsManager.BuildSettings;
-import nl.requios.effortlessbuilding.Mirror;
-
-import javax.annotation.Nonnull;
-import javax.annotation.Nullable;
-
-@Mod.EventBusSubscriber
-public class BuildModifierCapability {
-
-    @CapabilityInject(IBuildModifier.class)
-    public final static Capability<IBuildModifier> buildModifier = null;
-
-    public interface IBuildModifier {
-        BuildSettings getBuildModifierData();
-
-        void setBuildModifierData(BuildSettings buildSettings);
-    }
-
-    public static class BuildModifier implements IBuildModifier {
-        private BuildSettings buildSettings;
-
-        @Override
-        public BuildSettings getBuildModifierData() {
-            return buildSettings;
-        }
-
-        @Override
-        public void setBuildModifierData(BuildSettings buildSettings) {
-            this.buildSettings = buildSettings;
-        }
-    }
-
-    public static class Storage implements Capability.IStorage<IBuildModifier> {
-        @Override
-        public NBTBase writeNBT(Capability<IBuildModifier> capability, IBuildModifier instance, EnumFacing side) {
-            NBTTagCompound compound = new NBTTagCompound();
-            BuildSettings buildSettings = instance.getBuildModifierData();
-
-            //MIRROR
-            Mirror.MirrorSettings m = buildSettings.getMirrorSettings();
-            compound.setBoolean("mirrorEnabled", m.enabled);
-            compound.setDouble("mirrorPosX", m.position.x);
-            compound.setDouble("mirrorPosY", m.position.y);
-            compound.setDouble("mirrorPosZ", m.position.z);
-            compound.setBoolean("mirrorX", m.mirrorX);
-            compound.setBoolean("mirrorY", m.mirrorY);
-            compound.setBoolean("mirrorZ", m.mirrorZ);
-            compound.setInteger("mirrorRadius", m.radius);
-            compound.setBoolean("mirrorDrawLines", m.drawLines);
-            compound.setBoolean("mirrorDrawPlanes", m.drawPlanes);
-
-            //ARRAY
-            Array.ArraySettings a = buildSettings.getArraySettings();
-            compound.setBoolean("arrayEnabled", a.enabled);
-            compound.setInteger("arrayOffsetX", a.offset.getX());
-            compound.setInteger("arrayOffsetY", a.offset.getY());
-            compound.setInteger("arrayOffsetZ", a.offset.getZ());
-            compound.setInteger("arrayCount", a.count);
-
-            //compound.setBoolean("quickReplace", buildSettings.doQuickReplace()); dont save quickreplace
-            return compound;
-        }
-
-        @Override
-        public void readNBT(Capability<IBuildModifier> capability, IBuildModifier instance, EnumFacing side, NBTBase nbt) {
-            NBTTagCompound compound = (NBTTagCompound) nbt;
-
-            //MIRROR
-            boolean mirrorEnabled = compound.getBoolean("mirrorEnabled");
-            Vec3d mirrorPosition = new Vec3d(compound.getDouble("mirrorPosX"), compound.getDouble("mirrorPosY"), compound.getDouble("mirrorPosZ"));
-            boolean mirrorX = compound.getBoolean("mirrorX");
-            boolean mirrorY = compound.getBoolean("mirrorY");
-            boolean mirrorZ = compound.getBoolean("mirrorZ");
-            int mirrorRadius = compound.getInteger("mirrorRadius");
-            boolean mirrorDrawLines = compound.getBoolean("mirrorDrawLines");
-            boolean mirrorDrawPlanes = compound.getBoolean("mirrorDrawPlanes");
-            Mirror.MirrorSettings mirrorSettings = new Mirror.MirrorSettings(mirrorEnabled, mirrorPosition, mirrorX, mirrorY, mirrorZ, mirrorRadius, mirrorDrawLines, mirrorDrawPlanes);
-
-            //ARRAY
-            boolean arrayEnabled = compound.getBoolean("arrayEnabled");
-            BlockPos arrayOffset = new BlockPos(compound.getInteger("arrayOffsetX"), compound.getInteger("arrayOffsetY"), compound.getInteger("arrayOffsetZ"));
-            int arrayCount = compound.getInteger("arrayCount");
-            Array.ArraySettings arraySettings = new Array.ArraySettings(arrayEnabled, arrayOffset, arrayCount);
-
-            //boolean quickReplace = compound.getBoolean("quickReplace"); //dont load quickreplace
-
-            BuildSettings buildSettings = new BuildSettings(mirrorSettings, arraySettings, false);
-            instance.setBuildModifierData(buildSettings);
-        }
-    }
-
-    public static class Provider implements ICapabilitySerializable<NBTBase> {
-        IBuildModifier inst = buildModifier.getDefaultInstance();
-
-        @Override
-        public boolean hasCapability(@Nonnull Capability<?> capability, @Nullable EnumFacing facing) {
-            return capability == buildModifier;
-        }
-
-        @Override
-        public <T> T getCapability(@Nonnull Capability<T> capability, @Nullable EnumFacing facing) {
-            if (capability == buildModifier) return buildModifier.<T>cast(inst);
-            return null;
-        }
-
-        @Override
-        public NBTBase serializeNBT() {
-            return buildModifier.getStorage().writeNBT(buildModifier, inst, null);
-        }
-
-        @Override
-        public void deserializeNBT(NBTBase nbt) {
-            buildModifier.getStorage().readNBT(buildModifier, inst, null, nbt);
-        }
-    }
-
-    // Allows for the capability to persist after death.
-    @SubscribeEvent
-    public static void clonePlayer(PlayerEvent.Clone event) {
-        IBuildModifier original = event.getOriginal().getCapability(buildModifier, null);
-        IBuildModifier clone = event.getEntity().getCapability(buildModifier, null);
-        clone.setBuildModifierData(original.getBuildModifierData());
-    }
-}

src/main/java/nl/requios/effortlessbuilding/capability/ItemHandlerCapabilityProvider.java

@@ -1,9 +1,10 @@
 package nl.requios.effortlessbuilding.capability;
 
-import net.minecraft.nbt.NBTTagCompound;
-import net.minecraft.util.EnumFacing;
+import net.minecraft.nbt.CompoundNBT;
+import net.minecraft.util.Direction;
 import net.minecraftforge.common.capabilities.Capability;
 import net.minecraftforge.common.capabilities.ICapabilitySerializable;
+import net.minecraftforge.common.util.LazyOptional;
 import net.minecraftforge.items.CapabilityItemHandler;
 import net.minecraftforge.items.IItemHandler;
 import net.minecraftforge.items.ItemStackHandler;
@@ -12,31 +13,22 @@ import nl.requios.effortlessbuilding.item.ItemRandomizerBag;
 import javax.annotation.Nonnull;
 import javax.annotation.Nullable;
 
-public class ItemHandlerCapabilityProvider implements ICapabilitySerializable<NBTTagCompound> {
+public class ItemHandlerCapabilityProvider implements ICapabilitySerializable<CompoundNBT> {
     IItemHandler itemHandler = new ItemStackHandler(ItemRandomizerBag.INV_SIZE);
 
+    @Nonnull
     @Override
-    public boolean hasCapability(@Nonnull Capability<?> capability, @Nullable EnumFacing facing) {
-        if (capability == CapabilityItemHandler.ITEM_HANDLER_CAPABILITY)
-            return true;
-        return false;
-    }
-
-    @Nullable
-    @Override
-    public <T> T getCapability(@Nonnull Capability<T> capability, @Nullable EnumFacing facing) {
-        if (capability == CapabilityItemHandler.ITEM_HANDLER_CAPABILITY)
-            return (T) itemHandler;
-        return null;
+    public <T> LazyOptional<T> getCapability(@Nonnull Capability<T> cap, @Nullable Direction side) {
+        return CapabilityItemHandler.ITEM_HANDLER_CAPABILITY.orEmpty(cap, LazyOptional.of(() -> itemHandler));
     }
 
     @Override
-    public NBTTagCompound serializeNBT() {
+    public CompoundNBT serializeNBT() {
         return ((ItemStackHandler) itemHandler).serializeNBT();
     }
 
     @Override
-    public void deserializeNBT(NBTTagCompound nbt) {
+    public void deserializeNBT(CompoundNBT nbt) {
         ((ItemStackHandler) itemHandler).deserializeNBT(nbt);
     }
 }

src/main/java/nl/requios/effortlessbuilding/capability/ModeCapabilityManager.java

@@ -0,0 +1,103 @@
+package nl.requios.effortlessbuilding.capability;
+
+import net.minecraft.nbt.CompoundNBT;
+import net.minecraft.nbt.INBT;
+import net.minecraft.util.Direction;
+import net.minecraftforge.common.capabilities.Capability;
+import net.minecraftforge.common.capabilities.CapabilityInject;
+import net.minecraftforge.common.capabilities.ICapabilitySerializable;
+import net.minecraftforge.common.util.LazyOptional;
+import net.minecraftforge.event.entity.player.PlayerEvent;
+import net.minecraftforge.eventbus.api.SubscribeEvent;
+import net.minecraftforge.fml.common.Mod;
+import nl.requios.effortlessbuilding.buildmode.BuildModes;
+
+import javax.annotation.Nonnull;
+import javax.annotation.Nullable;
+
+import static nl.requios.effortlessbuilding.buildmode.ModeSettingsManager.ModeSettings;
+
+@Mod.EventBusSubscriber
+public class ModeCapabilityManager {
+
+    @CapabilityInject(IModeCapability.class)
+    public final static Capability<IModeCapability> modeCapability = null;
+
+    public interface IModeCapability {
+        ModeSettings getModeData();
+
+        void setModeData(ModeSettings modeSettings);
+    }
+
+    public static class ModeCapability implements IModeCapability {
+        private ModeSettings modeSettings;
+
+        @Override
+        public ModeSettings getModeData() {
+            return modeSettings;
+        }
+
+        @Override
+        public void setModeData(ModeSettings modeSettings) {
+            this.modeSettings = modeSettings;
+        }
+    }
+
+    public static class Storage implements Capability.IStorage<IModeCapability> {
+        @Override
+        public INBT writeNBT(Capability<IModeCapability> capability, IModeCapability instance, Direction side) {
+            CompoundNBT compound = new CompoundNBT();
+            ModeSettings modeSettings = instance.getModeData();
+            if (modeSettings == null) modeSettings = new ModeSettings();
+
+            //compound.putInteger("buildMode", modeSettings.getBuildMode().ordinal());
+
+            //TODO add mode settings
+
+            return compound;
+        }
+
+        @Override
+        public void readNBT(Capability<IModeCapability> capability, IModeCapability instance, Direction side, INBT nbt) {
+            CompoundNBT compound = (CompoundNBT) nbt;
+
+            //BuildModes.BuildModeEnum buildMode = BuildModes.BuildModeEnum.values()[compound.getInteger("buildMode")];
+
+            //TODO add mode settings
+
+            ModeSettings modeSettings = new ModeSettings(BuildModes.BuildModeEnum.NORMAL);
+            instance.setModeData(modeSettings);
+        }
+    }
+
+    public static class Provider implements ICapabilitySerializable<INBT> {
+        IModeCapability inst = modeCapability.getDefaultInstance();
+
+        @Nonnull
+        @Override
+        public <T> LazyOptional<T> getCapability(@Nonnull Capability<T> cap, @Nullable Direction side) {
+            return modeCapability.orEmpty(cap, LazyOptional.of(() -> inst));
+        }
+
+        @Override
+        public INBT serializeNBT() {
+            return modeCapability.getStorage().writeNBT(modeCapability, inst, null);
+        }
+
+        @Override
+        public void deserializeNBT(INBT nbt) {
+            modeCapability.getStorage().readNBT(modeCapability, inst, null, nbt);
+        }
+
+    }
+
+    // Allows for the capability to persist after death.
+    @SubscribeEvent
+    public static void clonePlayer(PlayerEvent.Clone event) {
+        LazyOptional<IModeCapability> original = event.getOriginal().getCapability(modeCapability, null);
+        LazyOptional<IModeCapability> clone = event.getEntity().getCapability(modeCapability, null);
+        clone.ifPresent(cloneModeCapability ->
+                original.ifPresent(originalModeCapability ->
+                        cloneModeCapability.setModeData(originalModeCapability.getModeData())));
+    }
+}

src/main/java/nl/requios/effortlessbuilding/capability/ModifierCapabilityManager.java

@@ -0,0 +1,182 @@
+package nl.requios.effortlessbuilding.capability;
+
+import net.minecraft.nbt.CompoundNBT;
+import net.minecraft.nbt.INBT;
+import net.minecraft.util.Direction;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.math.Vec3d;
+import net.minecraftforge.common.capabilities.Capability;
+import net.minecraftforge.common.capabilities.CapabilityInject;
+import net.minecraftforge.common.capabilities.ICapabilitySerializable;
+import net.minecraftforge.common.util.LazyOptional;
+import net.minecraftforge.event.entity.player.PlayerEvent;
+import net.minecraftforge.eventbus.api.SubscribeEvent;
+import net.minecraftforge.fml.common.Mod;
+import nl.requios.effortlessbuilding.buildmodifier.Array;
+import nl.requios.effortlessbuilding.buildmodifier.Mirror;
+import nl.requios.effortlessbuilding.buildmodifier.RadialMirror;
+
+import javax.annotation.Nonnull;
+import javax.annotation.Nullable;
+
+import static nl.requios.effortlessbuilding.buildmodifier.ModifierSettingsManager.*;
+
+@Mod.EventBusSubscriber
+public class ModifierCapabilityManager {
+
+    @CapabilityInject(IModifierCapability.class)
+    public final static Capability<IModifierCapability> modifierCapability = null;
+
+    public interface IModifierCapability {
+        ModifierSettings getModifierData();
+
+        void setModifierData(ModifierSettings modifierSettings);
+    }
+
+    public static class ModifierCapability implements IModifierCapability {
+        private ModifierSettings modifierSettings;
+
+        @Override
+        public ModifierSettings getModifierData() {
+            return modifierSettings;
+        }
+
+        @Override
+        public void setModifierData(ModifierSettings modifierSettings) {
+            this.modifierSettings = modifierSettings;
+        }
+    }
+
+    public static class Storage implements Capability.IStorage<IModifierCapability> {
+        @Override
+        public INBT writeNBT(Capability<IModifierCapability> capability, IModifierCapability instance, Direction side) {
+            CompoundNBT compound = new CompoundNBT();
+            ModifierSettings modifierSettings = instance.getModifierData();
+            if (modifierSettings == null) modifierSettings = new ModifierSettings();
+
+            //MIRROR
+            Mirror.MirrorSettings m = modifierSettings.getMirrorSettings();
+            if (m == null) m = new Mirror.MirrorSettings();
+            compound.putBoolean("mirrorEnabled", m.enabled);
+            compound.putDouble("mirrorPosX", m.position.x);
+            compound.putDouble("mirrorPosY", m.position.y);
+            compound.putDouble("mirrorPosZ", m.position.z);
+            compound.putBoolean("mirrorX", m.mirrorX);
+            compound.putBoolean("mirrorY", m.mirrorY);
+            compound.putBoolean("mirrorZ", m.mirrorZ);
+            compound.putInt("mirrorRadius", m.radius);
+            compound.putBoolean("mirrorDrawLines", m.drawLines);
+            compound.putBoolean("mirrorDrawPlanes", m.drawPlanes);
+
+            //ARRAY
+            Array.ArraySettings a = modifierSettings.getArraySettings();
+            if (a == null) a = new Array.ArraySettings();
+            compound.putBoolean("arrayEnabled", a.enabled);
+            compound.putInt("arrayOffsetX", a.offset.getX());
+            compound.putInt("arrayOffsetY", a.offset.getY());
+            compound.putInt("arrayOffsetZ", a.offset.getZ());
+            compound.putInt("arrayCount", a.count);
+
+            compound.putInt("reachUpgrade", modifierSettings.getReachUpgrade());
+
+            //compound.putBoolean("quickReplace", buildSettings.doQuickReplace()); dont save quickreplace
+
+            //RADIAL MIRROR
+            RadialMirror.RadialMirrorSettings r = modifierSettings.getRadialMirrorSettings();
+            if (r == null) r = new RadialMirror.RadialMirrorSettings();
+            compound.putBoolean("radialMirrorEnabled", r.enabled);
+            compound.putDouble("radialMirrorPosX", r.position.x);
+            compound.putDouble("radialMirrorPosY", r.position.y);
+            compound.putDouble("radialMirrorPosZ", r.position.z);
+            compound.putInt("radialMirrorSlices", r.slices);
+            compound.putBoolean("radialMirrorAlternate", r.alternate);
+            compound.putInt("radialMirrorRadius", r.radius);
+            compound.putBoolean("radialMirrorDrawLines", r.drawLines);
+            compound.putBoolean("radialMirrorDrawPlanes", r.drawPlanes);
+
+            return compound;
+        }
+
+        @Override
+        public void readNBT(Capability<IModifierCapability> capability, IModifierCapability instance, Direction side, INBT nbt) {
+            CompoundNBT compound = (CompoundNBT) nbt;
+
+            //MIRROR
+            boolean mirrorEnabled = compound.getBoolean("mirrorEnabled");
+            Vec3d mirrorPosition = new Vec3d(
+                    compound.getDouble("mirrorPosX"),
+                    compound.getDouble("mirrorPosY"),
+                    compound.getDouble("mirrorPosZ"));
+            boolean mirrorX = compound.getBoolean("mirrorX");
+            boolean mirrorY = compound.getBoolean("mirrorY");
+            boolean mirrorZ = compound.getBoolean("mirrorZ");
+            int mirrorRadius = compound.getInt("mirrorRadius");
+            boolean mirrorDrawLines = compound.getBoolean("mirrorDrawLines");
+            boolean mirrorDrawPlanes = compound.getBoolean("mirrorDrawPlanes");
+            Mirror.MirrorSettings mirrorSettings = new Mirror.MirrorSettings(mirrorEnabled, mirrorPosition, mirrorX, mirrorY, mirrorZ, mirrorRadius, mirrorDrawLines, mirrorDrawPlanes);
+
+            //ARRAY
+            boolean arrayEnabled = compound.getBoolean("arrayEnabled");
+            BlockPos arrayOffset = new BlockPos(
+                    compound.getInt("arrayOffsetX"),
+                    compound.getInt("arrayOffsetY"),
+                    compound.getInt("arrayOffsetZ"));
+            int arrayCount = compound.getInt("arrayCount");
+            Array.ArraySettings arraySettings = new Array.ArraySettings(arrayEnabled, arrayOffset, arrayCount);
+
+            int reachUpgrade = compound.getInt("reachUpgrade");
+
+            //boolean quickReplace = compound.getBoolean("quickReplace"); //dont load quickreplace
+
+            //RADIAL MIRROR
+            boolean radialMirrorEnabled = compound.getBoolean("radialMirrorEnabled");
+            Vec3d radialMirrorPosition = new Vec3d(
+                    compound.getDouble("radialMirrorPosX"),
+                    compound.getDouble("radialMirrorPosY"),
+                    compound.getDouble("radialMirrorPosZ"));
+            int radialMirrorSlices = compound.getInt("radialMirrorSlices");
+            boolean radialMirrorAlternate = compound.getBoolean("radialMirrorAlternate");
+            int radialMirrorRadius = compound.getInt("radialMirrorRadius");
+            boolean radialMirrorDrawLines = compound.getBoolean("radialMirrorDrawLines");
+            boolean radialMirrorDrawPlanes = compound.getBoolean("radialMirrorDrawPlanes");
+            RadialMirror.RadialMirrorSettings radialMirrorSettings = new RadialMirror.RadialMirrorSettings(radialMirrorEnabled, radialMirrorPosition,
+                    radialMirrorSlices, radialMirrorAlternate, radialMirrorRadius, radialMirrorDrawLines, radialMirrorDrawPlanes);
+
+            ModifierSettings modifierSettings = new ModifierSettings(mirrorSettings, arraySettings, radialMirrorSettings, false, reachUpgrade);
+            instance.setModifierData(modifierSettings);
+        }
+    }
+
+    public static class Provider implements ICapabilitySerializable<INBT> {
+
+        IModifierCapability inst = modifierCapability.getDefaultInstance();
+
+        @Nonnull
+        @Override
+        public <T> LazyOptional<T> getCapability(@Nonnull Capability<T> cap, @Nullable Direction side) {
+            return modifierCapability.orEmpty(cap, LazyOptional.of(() -> inst));
+        }
+
+        @Override
+        public INBT serializeNBT() {
+            return modifierCapability.getStorage().writeNBT(modifierCapability, inst, null);
+        }
+
+        @Override
+        public void deserializeNBT(INBT nbt) {
+            modifierCapability.getStorage().readNBT(modifierCapability, inst, null, nbt);
+        }
+
+    }
+
+
+    // Allows for the capability to persist after death.
+    @SubscribeEvent
+    public static void clonePlayer(PlayerEvent.Clone event) {
+        LazyOptional<IModifierCapability> original = event.getOriginal().getCapability(modifierCapability, null);
+        LazyOptional<IModifierCapability> clone = event.getEntity().getCapability(modifierCapability, null);
+        clone.ifPresent(cloneModifierCapability ->
+                original.ifPresent(originalModifierCapability ->
+                        cloneModifierCapability.setModifierData(originalModifierCapability.getModifierData())));
+    }
+}

src/main/java/nl/requios/effortlessbuilding/command/CommandReach.java

@@ -0,0 +1,43 @@
+package nl.requios.effortlessbuilding.command;
+
+import com.mojang.brigadier.CommandDispatcher;
+import com.mojang.brigadier.arguments.IntegerArgumentType;
+import net.minecraft.command.CommandSource;
+import net.minecraft.command.Commands;
+import net.minecraft.entity.player.ServerPlayerEntity;
+import net.minecraft.util.text.StringTextComponent;
+import net.minecraftforge.fml.network.PacketDistributor;
+import nl.requios.effortlessbuilding.EffortlessBuilding;
+import nl.requios.effortlessbuilding.buildmodifier.ModifierSettingsManager;
+import nl.requios.effortlessbuilding.network.ModifierSettingsMessage;
+import nl.requios.effortlessbuilding.network.PacketHandler;
+
+public class CommandReach {
+
+    public static void register(CommandDispatcher<CommandSource> dispatcher) {
+        dispatcher.register(Commands.literal("reach").then(Commands.literal("set").then(Commands.argument("level", IntegerArgumentType.integer(0, 3)).executes((context) -> {
+            return setReachLevel(context.getSource().asPlayer(), IntegerArgumentType.getInteger(context, "level"));
+        }))).then(Commands.literal("get").executes((context -> {
+            return getReachLevel(context.getSource().asPlayer());
+        }))));
+    }
+
+    private static int setReachLevel(ServerPlayerEntity player, int level){
+        ModifierSettingsManager.ModifierSettings modifierSettings = ModifierSettingsManager.getModifierSettings(player);
+        modifierSettings.setReachUpgrade(level);
+        ModifierSettingsManager.setModifierSettings(player, modifierSettings);
+        //Send to client
+        PacketHandler.INSTANCE.send(PacketDistributor.PLAYER.with(() -> player), new ModifierSettingsMessage(modifierSettings));
+
+        player.sendMessage(new StringTextComponent("Reach level of " + player.getName().getString() + " set to " + modifierSettings.getReachUpgrade()));
+
+        return 1;
+    }
+
+    private static int getReachLevel(ServerPlayerEntity player){
+        int reachUpgrade = ModifierSettingsManager.getModifierSettings(player).getReachUpgrade();
+        EffortlessBuilding.log(player, "Current reach: level "+reachUpgrade);
+
+        return 1;
+    }
+}

src/main/java/nl/requios/effortlessbuilding/compatibility/CompatHelper.java

@@ -0,0 +1,132 @@
+package nl.requios.effortlessbuilding.compatibility;
+
+import net.minecraft.block.BlockState;
+import net.minecraft.entity.player.PlayerEntity;
+import net.minecraft.item.BlockItem;
+import net.minecraft.item.Item;
+import net.minecraft.item.ItemStack;
+import net.minecraftforge.common.util.LazyOptional;
+import net.minecraftforge.items.CapabilityItemHandler;
+import net.minecraftforge.items.IItemHandler;
+import nl.requios.effortlessbuilding.EffortlessBuilding;
+import nl.requios.effortlessbuilding.item.ItemRandomizerBag;
+
+public class CompatHelper {
+    //TODO 1.13 compatibility
+//    // Get a handle to the dank null item instance. This will remain null if the mod doesn't load
+//    // and all checks will fail, so it works.
+//    @GameRegistry.ObjectHolder("danknull:dank_null")
+//    public static final Item dankNullItem = null;
+//
+//    public static IChiselsAndBitsProxy chiselsAndBitsProxy;
+//
+    public static void setup() {
+        //TODO 1.13 compatibility
+//        if (Loader.isModLoaded("chiselsandbits")) {
+//            // reflection to avoid hard dependency
+//            try {
+//                chiselsAndBitsProxy = Class.forName("nl.requios.effortlessbuilding.compatibility.ActiveChiselsAndBitsProxy").asSubclass(ActiveChiselsAndBitsProxy.class).newInstance();
+//            } catch (InstantiationException | IllegalAccessException | ClassNotFoundException e) {
+//                e.printStackTrace();
+//            }
+//        } else {
+//            chiselsAndBitsProxy = new DummyChiselsAndBitsProxy();
+//        }
+    }
+
+    // Check if the item given is a proxy for blocks. For now, we check for the randomizer bag,
+    // /dank/null, or plain old blocks.
+    public static boolean isItemBlockProxy(ItemStack stack) {
+        Item item = stack.getItem();
+        if (item instanceof BlockItem)
+            return true;
+        if ((item instanceof ItemRandomizerBag))
+            return true;
+        //TODO 1.13 compatibility
+//        if (item == dankNullItem)
+//            return true;
+        return false;
+    }
+
+    // Get the block to be placed by this proxy. For the /dank/null, it's the slot stack
+    // pointed to by nbt integer selectedIndex.
+    public static ItemStack getItemBlockFromStack(ItemStack proxy) {
+        Item proxyItem = proxy.getItem();
+
+        if (proxyItem instanceof BlockItem)
+            return proxy;
+
+        //Randomizer Bag
+        if (proxyItem instanceof ItemRandomizerBag) {
+            ItemStack itemStack = proxy;
+            while (!(itemStack.getItem() instanceof BlockItem || itemStack.isEmpty())) {
+                if (itemStack.getItem() instanceof ItemRandomizerBag)
+                    itemStack = ItemRandomizerBag.pickRandomStack(ItemRandomizerBag.getBagInventory(itemStack));
+            }
+            return itemStack;
+        }
+
+        //TODO 1.13 compatibility
+        //Dank Null
+//        if (proxyItem == dankNullItem) {
+//            int index = 0;
+//            if (proxy.hasTagCompound() && proxy.getTagCompound().hasKey("selectedIndex"))
+//                index = proxy.getTagCompound().getInteger("selectedIndex");
+//            return proxy.getCapability(CapabilityItemHandler.ITEM_HANDLER_CAPABILITY, null).getStackInSlot(index);
+//        }
+
+        return ItemStack.EMPTY;
+    }
+
+    public static ItemStack getItemBlockByState(ItemStack stack, BlockState state) {
+        if (state == null) return ItemStack.EMPTY;
+
+        Item blockItem = Item.getItemFromBlock(state.getBlock());
+        if (stack.getItem() instanceof BlockItem)
+            return stack;
+        else if (stack.getItem() instanceof ItemRandomizerBag) {
+            IItemHandler bagInventory = ItemRandomizerBag.getBagInventory(stack);
+            return ItemRandomizerBag.findStack(bagInventory, blockItem);
+        }
+        //TODO 1.13 compatibility
+//        else if (stack.getItem() == dankNullItem) {
+//            int index = itemHandlerSlotForItem(stack, blockItem);
+//            if (index >= 0)
+//                return stack.getCapability(CapabilityItemHandler.ITEM_HANDLER_CAPABILITY, null).getStackInSlot(index);
+//        }
+        return ItemStack.EMPTY;
+    }
+
+    // Handle IItemHandler slot stacks not being modifiable. We must call IItemHandler#extractItem,
+    // because the ItemStack returned by IItemHandler#getStackInSlot isn't modifiable.
+    public static void shrinkStack(ItemStack origStack, ItemStack curStack, PlayerEntity player) {
+        //TODO 1.13 compatibility, offhand support
+        //Hacky way to get the origstack, because given origStack is itemblock stack and never proxy
+//        origStack = player.getHeldItem(EnumHand.MAIN_HAND);
+
+//        if (origStack.getItem() == dankNullItem) {
+//            int index = itemHandlerSlotForItem(origStack, curStack.getItem());
+//            origStack.getCapability(CapabilityItemHandler.ITEM_HANDLER_CAPABILITY, null).extractItem(index, 1, false);
+//        } else
+            curStack.shrink(1);
+    }
+
+    private static int itemHandlerSlotForItem(ItemStack stack, Item blockItem) {
+        LazyOptional<IItemHandler> itemHandlerLazyOptional = stack.getCapability(CapabilityItemHandler.ITEM_HANDLER_CAPABILITY, null);
+        IItemHandler handler = itemHandlerLazyOptional.orElse(null);
+
+        if (handler == null) {
+            EffortlessBuilding.logger.warn("Itemblock proxy has no item handler capability!");
+            return -1;
+        }
+
+        for (int i = 0; i < handler.getSlots(); i++) {
+            ItemStack ref = handler.getStackInSlot(i);
+            if (ref.getItem() instanceof BlockItem)
+                if (ref.getItem() == blockItem)
+                    return i;
+        }
+        return -1;
+    }
+
+}

src/main/java/nl/requios/effortlessbuilding/gui/RandomizerBagContainer.java

@@ -1,54 +1,69 @@
 package nl.requios.effortlessbuilding.gui;
 
-import net.minecraft.entity.player.EntityPlayer;
-import net.minecraft.entity.player.InventoryPlayer;
-import net.minecraft.inventory.ClickType;
-import net.minecraft.inventory.Container;
+import net.minecraft.entity.player.PlayerEntity;
+import net.minecraft.entity.player.PlayerInventory;
 import net.minecraft.inventory.IInventory;
-import net.minecraft.inventory.Slot;
+import net.minecraft.inventory.Inventory;
+import net.minecraft.inventory.container.ClickType;
+import net.minecraft.inventory.container.Container;
+import net.minecraft.inventory.container.Slot;
 import net.minecraft.item.ItemStack;
-import net.minecraft.util.EnumHand;
+import net.minecraft.util.Hand;
 import net.minecraftforge.items.IItemHandler;
+import net.minecraftforge.items.ItemStackHandler;
 import net.minecraftforge.items.SlotItemHandler;
+import nl.requios.effortlessbuilding.EffortlessBuilding;
 import nl.requios.effortlessbuilding.item.ItemRandomizerBag;
 
 public class RandomizerBagContainer extends Container {
 
     private final IItemHandler bagInventory;
-    private final int sizeInventory;
 
     private static final int INV_START = ItemRandomizerBag.INV_SIZE, INV_END = INV_START + 26,
             HOTBAR_START = INV_END + 1, HOTBAR_END = HOTBAR_START + 8;
 
-    public RandomizerBagContainer(InventoryPlayer parInventoryPlayer, IItemHandler parIInventory) {
-        bagInventory = parIInventory;
-        sizeInventory = bagInventory.getSlots();
-        for (int i = 0; i < sizeInventory; ++i) {
-            this.addSlotToContainer(new SlotItemHandler(bagInventory, i, 44 + (18 * i), 20));
+    public RandomizerBagContainer(int containerId, PlayerInventory playerInventory) {
+        this(containerId, playerInventory, new ItemStackHandler(ItemRandomizerBag.INV_SIZE));
+    }
+
+    public RandomizerBagContainer(int containerId, PlayerInventory playerInventory, IItemHandler inventory) {
+        super(EffortlessBuilding.RANDOMIZER_BAG_CONTAINER, containerId);
+        bagInventory = inventory;
+
+        for (int i = 0; i < ItemRandomizerBag.INV_SIZE; ++i) {
+            this.addSlot(new SlotItemHandler(bagInventory, i, 44 + (18 * i), 20));
         }
 
         // add player inventory slots
         int i;
         for (i = 0; i < 3; ++i) {
             for (int j = 0; j < 9; ++j) {
-                addSlotToContainer(new Slot(parInventoryPlayer, j + i * 9 + 9, 8 + j * 18, 51 + i * 18));
+                addSlot(new Slot(playerInventory, j + i * 9 + 9, 8 + j * 18, 51 + i * 18));
             }
         }
 
         // add hotbar slots
         for (i = 0; i < 9; ++i) {
-            addSlotToContainer(new Slot(parInventoryPlayer, i, 8 + i * 18, 109));
+            addSlot(new Slot(playerInventory, i, 8 + i * 18, 109));
         }
     }
 
     @Override
-    public boolean canInteractWith(EntityPlayer playerIn) {
+    public boolean canInteractWith(PlayerEntity playerIn) {
         return true;
     }
 
     @Override
-    public ItemStack transferStackInSlot(EntityPlayer playerIn, int slotIndex) {
-        ItemStack itemstack = null;
+    public Slot getSlot(int parSlotIndex)
+    {
+        if(parSlotIndex >= inventorySlots.size())
+            parSlotIndex = inventorySlots.size() - 1;
+        return super.getSlot(parSlotIndex);
+    }
+
+    @Override
+    public ItemStack transferStackInSlot(PlayerEntity playerIn, int slotIndex) {
+        ItemStack itemstack = ItemStack.EMPTY;
         Slot slot = this.inventorySlots.get(slotIndex);
 
         if (slot != null && slot.getHasStack()) {
@@ -59,7 +74,7 @@ public class RandomizerBagContainer extends Container {
             if (slotIndex < INV_START) {
                 // try to place in player inventory / action bar
                 if (!this.mergeItemStack(itemstack1, INV_START, HOTBAR_END + 1, true)) {
-                    return null;
+                    return ItemStack.EMPTY;
                 }
 
                 slot.onSlotChange(itemstack1, itemstack);
@@ -72,7 +87,7 @@ public class RandomizerBagContainer extends Container {
                 if (slotIndex >= INV_START) {
                     // place in custom inventory
                     if (!this.mergeItemStack(itemstack1, 0, INV_START, false)) {
-                        return null;
+                        return ItemStack.EMPTY;
                     }
                 }
 
@@ -85,7 +100,7 @@ public class RandomizerBagContainer extends Container {
             }
 
             if (itemstack1.getCount() == itemstack.getCount()) {
-                return null;
+                return ItemStack.EMPTY;
             }
 
             slot.onTake(playerIn, itemstack1);
@@ -100,11 +115,24 @@ public class RandomizerBagContainer extends Container {
      * be able to save properly
      */
     @Override
-    public ItemStack slotClick(int slot, int dragType, ClickType clickTypeIn, EntityPlayer player) {
+    public ItemStack slotClick(int slot, int dragType, ClickType clickTypeIn, PlayerEntity player) {
         // this will prevent the player from interacting with the item that opened the inventory:
-        if (slot >= 0 && getSlot(slot) != null && getSlot(slot).getStack() == player.getHeldItem(EnumHand.MAIN_HAND)) {
-            return null;
+        if (slot >= 0 && getSlot(slot) != null && getSlot(slot).getStack().equals(player.getHeldItem(Hand.MAIN_HAND))) {
+            return ItemStack.EMPTY;
         }
         return super.slotClick(slot, dragType, clickTypeIn, player);
     }
+
+    /**
+     * Callback for when the crafting gui is closed.
+     */
+    @Override
+    public void onContainerClosed(PlayerEntity player)
+    {
+        super.onContainerClosed(player);
+        if(!player.world.isRemote)
+        {
+            detectAndSendChanges();
+        }
+    }
 }

src/main/java/nl/requios/effortlessbuilding/gui/RandomizerBagGuiContainer.java

@@ -1,49 +0,0 @@
-package nl.requios.effortlessbuilding.gui;
-
-import net.minecraft.client.gui.inventory.GuiContainer;
-import net.minecraft.client.renderer.GlStateManager;
-import net.minecraft.entity.player.InventoryPlayer;
-import net.minecraft.util.ResourceLocation;
-import net.minecraftforge.fml.relauncher.Side;
-import net.minecraftforge.fml.relauncher.SideOnly;
-import net.minecraftforge.items.IItemHandler;
-import nl.requios.effortlessbuilding.EffortlessBuilding;
-
-@SideOnly(Side.CLIENT)
-public class RandomizerBagGuiContainer extends GuiContainer {
-    private static final ResourceLocation guiTextures =
-            new ResourceLocation(EffortlessBuilding.MODID + ":textures/gui/container/randomizerbag.png");
-    private final InventoryPlayer inventoryPlayer;
-    private final IItemHandler inventoryBag;
-
-    public RandomizerBagGuiContainer(InventoryPlayer inventoryPlayer, IItemHandler inventoryBag) {
-        super(new RandomizerBagContainer(inventoryPlayer, inventoryBag));
-        this.inventoryPlayer = inventoryPlayer;
-        this.inventoryBag = inventoryBag;
-
-        ySize = 134;
-    }
-
-    @Override
-    public void drawScreen(int mouseX, int mouseY, float partialTicks) {
-        drawDefaultBackground();
-        super.drawScreen(mouseX, mouseY, partialTicks);
-        this.renderHoveredToolTip(mouseX, mouseY);
-    }
-
-    @Override
-    protected void drawGuiContainerForegroundLayer(int mouseX, int mouseY) {
-        String s = "Randomizer Bag";
-        fontRenderer.drawString(s, 8, 6, 0x404040);
-        fontRenderer.drawString(inventoryPlayer.getDisplayName().getUnformattedText(), 8, ySize - 96 + 2, 0x404040);
-    }
-
-    @Override
-    protected void drawGuiContainerBackgroundLayer(float partialTicks, int mouseX, int mouseY) {
-        GlStateManager.color(1.0F, 1.0F, 1.0F, 1.0F);
-        mc.getTextureManager().bindTexture(guiTextures);
-        int marginHorizontal = (width - xSize) / 2;
-        int marginVertical = (height - ySize) / 2;
-        drawTexturedModalRect(marginHorizontal, marginVertical, 0, 0, xSize, ySize);
-    }
-}

src/main/java/nl/requios/effortlessbuilding/gui/RandomizerBagGuiHandler.java

@@ -1,37 +0,0 @@
-package nl.requios.effortlessbuilding.gui;
-
-import net.minecraft.entity.player.EntityPlayer;
-import net.minecraft.util.EnumHand;
-import net.minecraft.world.World;
-import net.minecraftforge.fml.common.network.IGuiHandler;
-import net.minecraftforge.fml.relauncher.Side;
-import net.minecraftforge.fml.relauncher.SideOnly;
-import net.minecraftforge.items.CapabilityItemHandler;
-import nl.requios.effortlessbuilding.EffortlessBuilding;
-
-import javax.annotation.Nullable;
-
-public class RandomizerBagGuiHandler implements IGuiHandler {
-    @Nullable
-    @Override
-    public Object getServerGuiElement(int ID, EntityPlayer player, World world, int x, int y, int z) {
-        if (ID == EffortlessBuilding.RANDOMIZER_BAG_GUI) {
-            // Use the player's held item to create the container
-            return new RandomizerBagContainer(player.inventory,
-                    player.getHeldItem(EnumHand.MAIN_HAND).getCapability(CapabilityItemHandler.ITEM_HANDLER_CAPABILITY, null));
-        }
-        return null;
-    }
-
-    @Nullable
-    @Override
-    @SideOnly(Side.CLIENT)
-    public Object getClientGuiElement(int ID, EntityPlayer player, World world, int x, int y, int z) {
-        if (ID == EffortlessBuilding.RANDOMIZER_BAG_GUI) {
-            // Use the player's held item to create the client-side gui container
-            return new RandomizerBagGuiContainer(player.inventory,
-                    player.getHeldItem(EnumHand.MAIN_HAND).getCapability(CapabilityItemHandler.ITEM_HANDLER_CAPABILITY, null));
-        }
-        return null;
-    }
-}

src/main/java/nl/requios/effortlessbuilding/gui/RandomizerBagScreen.java

@@ -0,0 +1,45 @@
+package nl.requios.effortlessbuilding.gui;
+
+import com.mojang.blaze3d.platform.GlStateManager;
+import net.minecraft.client.gui.screen.inventory.ContainerScreen;
+import net.minecraft.entity.player.PlayerInventory;
+import net.minecraft.util.ResourceLocation;
+import net.minecraft.util.text.ITextComponent;
+import net.minecraft.util.text.TranslationTextComponent;
+import net.minecraftforge.api.distmarker.Dist;
+import net.minecraftforge.api.distmarker.OnlyIn;
+import net.minecraftforge.items.IItemHandler;
+import nl.requios.effortlessbuilding.EffortlessBuilding;
+
+@OnlyIn(Dist.CLIENT)
+public class RandomizerBagScreen extends ContainerScreen<RandomizerBagContainer> {
+    private static final ResourceLocation guiTextures =
+            new ResourceLocation(EffortlessBuilding.MODID, "textures/gui/container/randomizerbag.png");
+
+    public RandomizerBagScreen(RandomizerBagContainer randomizerBagContainer, PlayerInventory playerInventory, ITextComponent title) {
+        super(randomizerBagContainer, playerInventory, title);//new TranslationTextComponent("effortlessbuilding.screen.randomizer_bag"));
+        ySize = 134;
+    }
+
+    @Override
+    public void render(int mouseX, int mouseY, float partialTicks) {
+        renderBackground();
+        super.render(mouseX, mouseY, partialTicks);
+        this.renderHoveredToolTip(mouseX, mouseY);
+    }
+
+    @Override
+    protected void drawGuiContainerForegroundLayer(int mouseX, int mouseY) {
+        font.drawString(this.title.getFormattedText(), 8, 6, 0x404040);
+        font.drawString(playerInventory.getDisplayName().getFormattedText(), 8, ySize - 96 + 2, 0x404040);
+    }
+
+    @Override
+    protected void drawGuiContainerBackgroundLayer(float partialTicks, int mouseX, int mouseY) {
+        GlStateManager.color3f(1.0F, 1.0F, 1.0F);
+        minecraft.getTextureManager().bindTexture(guiTextures);
+        int marginHorizontal = (width - xSize) / 2;
+        int marginVertical = (height - ySize) / 2;
+        blit(marginHorizontal, marginVertical, 0, 0, xSize, ySize);
+    }
+}

src/main/java/nl/requios/effortlessbuilding/gui/SettingsGui.java

@@ -1,314 +0,0 @@
-package nl.requios.effortlessbuilding.gui;
-
-import net.minecraft.client.Minecraft;
-import net.minecraft.client.gui.GuiButton;
-import net.minecraft.client.gui.GuiScreen;
-import net.minecraft.client.gui.GuiTextField;
-import net.minecraft.util.math.BlockPos;
-import net.minecraft.util.math.Vec3d;
-import net.minecraftforge.fml.client.config.GuiCheckBox;
-import nl.requios.effortlessbuilding.Array;
-import nl.requios.effortlessbuilding.BuildSettingsManager;
-import nl.requios.effortlessbuilding.EffortlessBuilding;
-import nl.requios.effortlessbuilding.Mirror;
-import nl.requios.effortlessbuilding.network.BuildSettingsMessage;
-import nl.requios.effortlessbuilding.proxy.ClientProxy;
-import org.lwjgl.input.Keyboard;
-
-import java.io.IOException;
-import java.util.ArrayList;
-import java.util.List;
-
-public class SettingsGui extends GuiScreen {
-
-    protected List<GuiTextField> textFieldList = new ArrayList<>();
-
-    protected List<GuiButton> mirrorButtonList = new ArrayList<>();
-    protected List<GuiTextField> mirrorTextFieldList = new ArrayList<>();
-    protected List<GuiTextField> arrayTextFieldList = new ArrayList<>();
-
-    private GuiTextField textMirrorPosX, textMirrorPosY, textMirrorPosZ, textMirrorRadius;
-    private GuiCheckBox buttonMirrorEnabled, buttonMirrorX, buttonMirrorY, buttonMirrorZ;
-    private GuiButton buttonDrawPlanes, buttonDrawLines;
-    private boolean drawPlanes, drawLines;
-    private GuiButton buttonCurrentPosition, buttonClose;
-
-    private GuiCheckBox buttonArrayEnabled;
-    private GuiTextField textArrayOffsetX, textArrayOffsetY, textArrayOffsetZ, textArrayCount;
-
-    private int left, right, top, bottom;
-
-    @Override
-    //Create buttons and labels and add them to buttonList/labelList
-    public void initGui() {
-        int id = 0;
-        left = width / 2 - 140;
-        right = width / 2 + 140;
-        top = height / 2 - 100;
-        bottom = height / 2 + 100;
-
-        //MIRROR
-        int y = top - 2;
-        buttonMirrorEnabled = new GuiCheckBox(id++, left - 15 + 8, y, "", false);
-        buttonList.add(buttonMirrorEnabled);
-
-        y = top + 18;
-        textMirrorPosX = new GuiTextField(id++, fontRenderer, left + 70, y, 50, 18);
-        textMirrorPosX.setText("0.5");
-        mirrorTextFieldList.add(textMirrorPosX);
-
-        textMirrorPosY = new GuiTextField(id++, fontRenderer, left + 140, y, 50, 18);
-        textMirrorPosY.setText("64.5");
-        mirrorTextFieldList.add(textMirrorPosY);
-
-        textMirrorPosZ = new GuiTextField(id++, fontRenderer, left + 210, y, 50, 18);
-        textMirrorPosZ.setText("0.5");
-        mirrorTextFieldList.add(textMirrorPosZ);
-
-        y = top + 50;
-        buttonMirrorX = new GuiCheckBox(id++, left + 60, y, " X", true);
-        mirrorButtonList.add(buttonMirrorX);
-
-        buttonMirrorY = new GuiCheckBox(id++, left + 100, y, " Y", false);
-        mirrorButtonList.add(buttonMirrorY);
-
-        buttonMirrorZ = new GuiCheckBox(id++, left + 140, y, " Z", false);
-        mirrorButtonList.add(buttonMirrorZ);
-
-        y = top + 47;
-        textMirrorRadius = new GuiTextField(id++, fontRenderer, left + 220, y, 60, 18);
-        textMirrorRadius.setText("50");
-        mirrorTextFieldList.add(textMirrorRadius);
-
-        y = top + 72;
-        buttonCurrentPosition = new GuiButton(id++, left + 5, y, 110, 20, "Set to current pos");
-        mirrorButtonList.add(buttonCurrentPosition);
-
-        buttonDrawLines = new GuiButton(id++, left + 127, y, 70, 20, "Show lines");
-        mirrorButtonList.add(buttonDrawLines);
-
-        buttonDrawPlanes = new GuiButton(id++, left + 209, y, 75, 20, "Show area");
-        mirrorButtonList.add(buttonDrawPlanes);
-
-        //ARRAY
-        y = top + 100;
-        buttonArrayEnabled = new GuiCheckBox(id++, left - 15 + 8, y, "", false);
-        buttonList.add(buttonArrayEnabled);
-
-        y = top + 120;
-        textArrayOffsetX = new GuiTextField(id++, fontRenderer, left + 70, y, 50, 18);
-        textArrayOffsetX.setText("0");
-        arrayTextFieldList.add(textArrayOffsetX);
-
-        textArrayOffsetY = new GuiTextField(id++, fontRenderer, left + 140, y, 50, 18);
-        textArrayOffsetY.setText("0");
-        arrayTextFieldList.add(textArrayOffsetY);
-
-        textArrayOffsetZ = new GuiTextField(id++, fontRenderer, left + 210, y, 50, 18);
-        textArrayOffsetZ.setText("0");
-        arrayTextFieldList.add(textArrayOffsetZ);
-
-        y = top + 150;
-        textArrayCount = new GuiTextField(id++, fontRenderer, left + 55, y, 50, 18);
-        textArrayCount.setText("5");
-        arrayTextFieldList.add(textArrayCount);
-
-        //CLOSE
-        y = height - 40;
-        buttonClose = new GuiButton(id++, width / 2 - 100, y, "Close");
-        buttonList.add(buttonClose);
-
-        BuildSettingsManager.BuildSettings buildSettings = BuildSettingsManager.getBuildSettings(mc.player);
-        if (buildSettings != null) {
-            //MIRROR
-            Mirror.MirrorSettings m = buildSettings.getMirrorSettings();
-            buttonMirrorEnabled.setIsChecked(m.enabled);
-            textMirrorPosX.setText(String.valueOf(m.position.x));
-            textMirrorPosY.setText(String.valueOf(m.position.y));
-            textMirrorPosZ.setText(String.valueOf(m.position.z));
-            buttonMirrorX.setIsChecked(m.mirrorX);
-            buttonMirrorY.setIsChecked(m.mirrorY);
-            buttonMirrorZ.setIsChecked(m.mirrorZ);
-            textMirrorRadius.setText(String.valueOf(m.radius));
-            drawLines = m.drawLines;
-            drawPlanes = m.drawPlanes;
-            buttonDrawLines.displayString = drawLines ? "Hide lines" : "Show lines";
-            buttonDrawPlanes.displayString = drawPlanes ? "Hide area" : "Show area";
-
-            //ARRAY
-            Array.ArraySettings a = buildSettings.getArraySettings();
-            buttonArrayEnabled.setIsChecked(a.enabled);
-            textArrayOffsetX.setText(String.valueOf(a.offset.getX()));
-            textArrayOffsetY.setText(String.valueOf(a.offset.getY()));
-            textArrayOffsetZ.setText(String.valueOf(a.offset.getZ()));
-            textArrayCount.setText(String.valueOf(a.count));
-        }
-
-        buttonList.addAll(mirrorButtonList);
-        textFieldList.addAll(mirrorTextFieldList);
-        textFieldList.addAll(arrayTextFieldList);
-    }
-
-    @Override
-    //Process general logic, i.e. hide buttons
-    public void updateScreen() {
-        textFieldList.forEach(GuiTextField::updateCursorCounter);
-    }
-
-    @Override
-    //Set colors using GL11, use the fontRendererObj field to display text
-    //Use drawTexturedModalRect() to transfers areas of a texture resource to the screen
-    public void drawScreen(int mouseX, int mouseY, float partialTicks) {
-        this.drawDefaultBackground();
-
-        int y = top;
-        int offset = 8;
-
-        buttonMirrorEnabled.drawButton(this.mc, mouseX, mouseY, partialTicks);
-        if (buttonMirrorEnabled.isChecked()) {
-            fontRenderer.drawString("Mirror enabled", left + offset, y, 0xFFFFFF, true);
-
-            y = top + 18 + 5;
-            fontRenderer.drawString("Position", left + offset, y, 0xFFFFFF, true);
-            fontRenderer.drawString("X", left + 50 + offset, y, 0xFFFFFF, true);
-            fontRenderer.drawString("Y", left + 120 + offset, y, 0xFFFFFF, true);
-            fontRenderer.drawString("Z", left + 190 + offset, y, 0xFFFFFF, true);
-
-            y = top + 52;
-            fontRenderer.drawString("Direction", left + offset, y, 0xFFFFFF, true);
-            fontRenderer.drawString("Size", left + 190, y, 0xFFFFFF, true);
-
-            mirrorButtonList.forEach(button -> button.drawButton(this.mc, mouseX, mouseY, partialTicks));
-            mirrorTextFieldList.forEach(textField -> textField.drawTextBox());
-        } else {
-            fontRenderer.drawString("Mirror disabled", left + offset, y, 0x999999, true);
-        }
-
-        y = top + 100 + 2;
-        buttonArrayEnabled.drawButton(this.mc, mouseX, mouseY, partialTicks);
-        if (buttonArrayEnabled.isChecked()) {
-            fontRenderer.drawString("Array enabled", left + offset, y, 0xFFFFFF, true);
-
-            y = top + 120 + 5;
-            fontRenderer.drawString("Offset", left + offset, y, 0xFFFFFF, true);
-            fontRenderer.drawString("X", left + 50 + offset, y, 0xFFFFFF, true);
-            fontRenderer.drawString("Y", left + 120 + offset, y, 0xFFFFFF, true);
-            fontRenderer.drawString("Z", left + 190 + offset, y, 0xFFFFFF, true);
-
-            y = top + 150 + 5;
-            fontRenderer.drawString("Count", left + offset, y, 0xFFFFFF, true);
-
-            arrayTextFieldList.forEach(textField -> textField.drawTextBox());
-        } else {
-            fontRenderer.drawString("Array disabled", left + offset, y, 0x999999, true);
-        }
-
-        buttonClose.drawButton(this.mc, mouseX, mouseY, partialTicks);
-    }
-
-    @Override
-    protected void keyTyped(char typedChar, int keyCode) throws IOException {
-        super.keyTyped(typedChar, keyCode);
-        if (Character.isDigit(typedChar) || typedChar == '.' || typedChar == '-' || keyCode == Keyboard.KEY_BACK || keyCode == Keyboard.KEY_DELETE) {
-            for (GuiTextField textField : textFieldList) {
-                if (textField.isFocused()) {
-                    textField.textboxKeyTyped(typedChar, keyCode);
-                }
-            }
-        }
-        if (keyCode == ClientProxy.keyBindings[0].getKeyCode()) {
-            Minecraft.getMinecraft().player.closeScreen();
-        }
-    }
-
-    @Override
-    protected void mouseClicked(int mouseX, int mouseY, int mouseButton) throws IOException {
-        super.mouseClicked(mouseX, mouseY, mouseButton);
-        textFieldList.forEach(textField -> textField.mouseClicked(mouseX, mouseY, mouseButton));
-    }
-
-    @Override
-    protected void actionPerformed(GuiButton button) throws IOException {
-        //check what button and action type (left/right click)
-        if (button == buttonClose) {
-            mc.player.closeScreen();
-        }
-        if (button == buttonCurrentPosition) {
-            Vec3d pos = new Vec3d(Math.floor(mc.player.posX) + 0.5, Math.floor(mc.player.posY) + 0.5, Math.floor(mc.player.posZ) + 0.5);
-            textMirrorPosX.setText(String.valueOf(pos.x));
-            textMirrorPosY.setText(String.valueOf(pos.y));
-            textMirrorPosZ.setText(String.valueOf(pos.z));
-        }
-        if (button == buttonDrawLines) {
-            drawLines = !drawLines;
-            buttonDrawLines.displayString = drawLines ? "Hide lines" : "Show lines";
-        }
-        if (button == buttonDrawPlanes) {
-            drawPlanes = !drawPlanes;
-            buttonDrawPlanes.displayString = drawPlanes ? "Hide area" : "Show area";
-        }
-    }
-
-    @Override
-    public void onGuiClosed() {
-        //save everything
-
-        //MIRROR
-        boolean mirrorEnabled = buttonMirrorEnabled.isChecked();
-
-        Vec3d mirrorPos = new Vec3d(0.5, 64.5, 0.5);
-        try {
-            mirrorPos = new Vec3d(Double.parseDouble(textMirrorPosX.getText()), Double.parseDouble(textMirrorPosY.getText()), Double.parseDouble(textMirrorPosZ.getText()));
-        } catch (NumberFormatException | NullPointerException ex) {
-            EffortlessBuilding.log(Minecraft.getMinecraft().player, "Mirror position not valid.", true);
-            EffortlessBuilding.log("Mirror position not valid. Resetting to default.");
-        }
-
-        boolean mirrorX = buttonMirrorX.isChecked();
-        boolean mirrorY = buttonMirrorY.isChecked();
-        boolean mirrorZ = buttonMirrorZ.isChecked();
-
-        int mirrorRadius = 50;
-        try {
-            mirrorRadius = Math.min(Integer.parseInt(textMirrorRadius.getText()), Mirror.MAX_RADIUS);
-        } catch (NumberFormatException | NullPointerException ex) {
-            EffortlessBuilding.log(Minecraft.getMinecraft().player, "Mirror radius not valid.", true);
-            EffortlessBuilding.log("Mirror radius not valid. Resetting to default.");
-        }
-        mirrorRadius = Math.max(1, mirrorRadius);
-        mirrorRadius = Math.min(Mirror.MAX_RADIUS, mirrorRadius);
-
-        Mirror.MirrorSettings m = new Mirror.MirrorSettings(mirrorEnabled, mirrorPos, mirrorX, mirrorY, mirrorZ, mirrorRadius, drawLines, drawPlanes);
-
-        //ARRAY
-        boolean arrayEnabled = buttonArrayEnabled.isChecked();
-        BlockPos arrayOffset = new BlockPos(0, 0, 0);
-        try {
-            arrayOffset = new BlockPos(Integer.parseInt(textArrayOffsetX.getText()), Integer.parseInt(textArrayOffsetY.getText()), Integer.parseInt(textArrayOffsetZ.getText()));
-        } catch (NumberFormatException | NullPointerException ex) {
-            EffortlessBuilding.log(Minecraft.getMinecraft().player, "Array offset not valid.", true);
-            EffortlessBuilding.log("Array offset not valid. Resetting to default.");
-        }
-
-        int arrayCount = 5;
-        try {
-            arrayCount = Integer.parseInt(textArrayCount.getText());
-        } catch (NumberFormatException | NullPointerException ex) {
-            EffortlessBuilding.log(Minecraft.getMinecraft().player, "Array count not valid.", true);
-            EffortlessBuilding.log("Array count not valid. Resetting to default.");
-        }
-        arrayCount = Math.max(1, arrayCount);
-        arrayCount = Math.min(Array.MAX_COUNT, arrayCount);
-
-        Array.ArraySettings a = new Array.ArraySettings(arrayEnabled, arrayOffset, arrayCount);
-
-        BuildSettingsManager.BuildSettings buildSettings = BuildSettingsManager.getBuildSettings(mc.player);
-        if (buildSettings == null) buildSettings = new BuildSettingsManager.BuildSettings();
-        buildSettings.setMirrorSettings(m);
-        buildSettings.setArraySettings(a);
-        BuildSettingsManager.setBuildSettings(mc.player, buildSettings);
-
-        //Send to server
-        EffortlessBuilding.packetHandler.sendToServer(new BuildSettingsMessage(buildSettings));
-    }
-}

src/main/java/nl/requios/effortlessbuilding/gui/buildmode/RadialMenu.java

@@ -0,0 +1,489 @@
+package nl.requios.effortlessbuilding.gui.buildmode;
+
+import java.util.ArrayList;
+import java.util.concurrent.TimeUnit;
+
+import com.mojang.blaze3d.platform.GlStateManager;
+import net.minecraft.client.gui.screen.Screen;
+import net.minecraft.client.resources.I18n;
+import net.minecraft.util.Direction;
+import net.minecraft.util.text.ITextComponent;
+import net.minecraft.util.text.TextFormatting;
+import net.minecraft.util.text.TranslationTextComponent;
+import nl.requios.effortlessbuilding.EffortlessBuilding;
+import nl.requios.effortlessbuilding.ModClientEventHandler;
+import nl.requios.effortlessbuilding.ModEventHandler;
+import nl.requios.effortlessbuilding.buildmode.ModeSettingsManager;
+import nl.requios.effortlessbuilding.proxy.ClientProxy;
+import org.apache.commons.lang3.text.WordUtils;
+import org.lwjgl.opengl.GL11;
+
+import com.google.common.base.Stopwatch;
+
+import net.minecraft.client.Minecraft;
+import net.minecraft.client.renderer.BufferBuilder;
+import net.minecraft.client.renderer.Tessellator;
+import net.minecraft.client.renderer.texture.TextureAtlasSprite;
+import net.minecraft.client.renderer.vertex.DefaultVertexFormats;
+
+import static nl.requios.effortlessbuilding.buildmode.BuildModes.*;
+import static nl.requios.effortlessbuilding.buildmode.ModeOptions.*;
+
+/**
+ * From Chisels and Bits by AlgorithmX2
+ * https://github.com/AlgorithmX2/Chisels-and-Bits/blob/1.12/src/main/java/mod/chiselsandbits/client/gui/ChiselsAndBitsMenu.java
+ */
+public class RadialMenu extends Screen {
+
+    private final float TIME_SCALE = 0.01f;
+    public static final RadialMenu instance = new RadialMenu();
+
+    private float visibility = 0.0f;
+    private Stopwatch lastChange = Stopwatch.createStarted();
+    public BuildModeEnum switchTo = null;
+    public ActionEnum doAction = null;
+    public boolean actionUsed = false;
+
+    public RadialMenu() {
+        super(new TranslationTextComponent("effortlessbuilding.screen.radial_menu"));
+    }
+
+    private float clampVis(final float f) {
+        return Math.max( 0.0f, Math.min( 1.0f, f ) );
+    }
+
+    public void raiseVisibility() {
+        visibility = clampVis( visibility + lastChange.elapsed( TimeUnit.MILLISECONDS ) * TIME_SCALE );
+        lastChange = Stopwatch.createStarted();
+    }
+
+    public void decreaseVisibility() {
+        visibility = clampVis( visibility - lastChange.elapsed( TimeUnit.MILLISECONDS ) * TIME_SCALE );
+        lastChange = Stopwatch.createStarted();
+    }
+
+    public void setVisibility(float visibility) {
+        this.visibility = visibility;
+    }
+
+    public boolean isVisible() {
+        return visibility > 0.001;
+    }
+
+    public void configure(final int scaledWidth, final int scaledHeight) {
+        Minecraft mc = Minecraft.getInstance();
+        font = mc.fontRenderer;
+        width = scaledWidth;
+        height = scaledHeight;
+    }
+
+    private static class MenuButton {
+
+        public double x1, x2;
+        public double y1, y2;
+        public boolean highlighted;
+
+        public final ActionEnum action;
+        public String name;
+        public Direction textSide;
+
+        public MenuButton(final String name, final ActionEnum action, final double x, final double y,
+                final Direction textSide) {
+            this.name = I18n.format(name);
+            this.action = action;
+            x1 = x - 10;
+            x2 = x + 10;
+            y1 = y - 10;
+            y2 = y + 10;
+            this.textSide = textSide;
+        }
+
+    }
+
+    static class MenuRegion {
+
+        public final BuildModeEnum mode;
+        public double x1, x2;
+        public double y1, y2;
+        public boolean highlighted;
+
+        public MenuRegion(final BuildModeEnum mode) {
+            this.mode = mode;
+        }
+
+    }
+
+    @Override
+    public void render(final int mouseX, final int mouseY, final float partialTicks) {
+        if (!isVisible()) return;
+
+        BuildModeEnum currentBuildMode = ModeSettingsManager.getModeSettings(Minecraft.getInstance().player).getBuildMode();
+
+        GlStateManager.pushMatrix();
+        GlStateManager.translatef( 0.0F, 0.0F, 200.0F );
+
+        final int startColor = (int) ( visibility * 98 ) << 24;
+        final int endColor = (int) ( visibility * 128 ) << 24;
+
+        fillGradient(0, 0, width, height, startColor, endColor);
+
+        GlStateManager.disableTexture();
+        GlStateManager.enableBlend();
+        GlStateManager.disableAlphaTest();
+        GlStateManager.blendFuncSeparate(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA, 1, 0);
+        GlStateManager.shadeModel(GL11.GL_SMOOTH);
+        final Tessellator tessellator = Tessellator.getInstance();
+        final BufferBuilder buffer = tessellator.getBuffer();
+
+        buffer.begin(GL11.GL_QUADS, DefaultVertexFormats.POSITION_COLOR);
+
+        final double middleX = width / 2.0;
+        final double middleY = height / 2.0;
+
+        //Fix for high def (retina) displays: use custom mouse coordinates
+        //Borrowed from GameRenderer::updateCameraAndRender
+        Minecraft mc = Minecraft.getInstance();
+        int mouseXX = (int)(mc.mouseHelper.getMouseX() * (double)mc.mainWindow.getScaledWidth() / (double)mc.mainWindow.getWidth());
+        int mouseYY = (int)(mc.mouseHelper.getMouseY() * (double)mc.mainWindow.getScaledHeight() / (double)mc.mainWindow.getHeight());
+
+        final double mouseXCenter = mouseXX - middleX;
+        final double mouseYCenter = mouseYY - middleY;
+        double mouseRadians = Math.atan2(mouseYCenter, mouseXCenter);
+
+        final double ringInnerEdge = 30;
+        final double ringOuterEdge = 65;
+        final double textDistance = 75;
+        final double buttonDistance = 105;
+        final double quarterCircle = Math.PI / 2.0;
+
+        if ( mouseRadians < -quarterCircle ) {
+            mouseRadians = mouseRadians + Math.PI * 2;
+        }
+
+        final ArrayList<MenuRegion> modes = new ArrayList<MenuRegion>();
+        final ArrayList<MenuButton> buttons = new ArrayList<MenuButton>();
+
+        //Add build modes
+        for (final BuildModeEnum mode : BuildModeEnum.values()) {
+            modes.add(new MenuRegion(mode));
+        }
+
+        //Add actions
+        buttons.add(new MenuButton(ActionEnum.UNDO.name, ActionEnum.UNDO, -buttonDistance - 26, -13, Direction.UP));
+        buttons.add(new MenuButton(ActionEnum.REDO.name, ActionEnum.REDO, -buttonDistance, -13, Direction.UP));
+        buttons.add(new MenuButton(ActionEnum.OPEN_MODIFIER_SETTINGS.name, ActionEnum.OPEN_MODIFIER_SETTINGS, -buttonDistance - 26, 13, Direction.DOWN));
+        buttons.add(new MenuButton(ActionEnum.REPLACE.name, ActionEnum.REPLACE, -buttonDistance, 13, Direction.DOWN));
+
+        //Add buildmode dependent options
+        OptionEnum[] options = currentBuildMode.options;
+        for (int i = 0; i < options.length; i++) {
+            for (int j = 0; j < options[i].actions.length; j++) {
+                ActionEnum action = options[i].actions[j];
+                buttons.add(new MenuButton(action.name, action, buttonDistance + j * 26, -13 + i * 39, Direction.DOWN));
+            }
+        }
+
+        switchTo = null;
+        doAction = null;
+
+        //Draw buildmode backgrounds
+        if (!modes.isEmpty()) {
+            final int totalModes = Math.max( 3, modes.size() );
+            int currentMode = 0;
+            final double fragment = Math.PI * 0.005;
+            final double fragment2 = Math.PI * 0.0025;
+            final double perObject = 2.0 * Math.PI / totalModes;
+
+            for (int i = 0; i < modes.size(); i++) {
+                MenuRegion menuRegion = modes.get(i);
+                final double beginRadians = currentMode * perObject - quarterCircle;
+                final double endRadians = (currentMode + 1) * perObject - quarterCircle;
+
+                menuRegion.x1 = Math.cos(beginRadians);
+                menuRegion.x2 = Math.cos(endRadians);
+                menuRegion.y1 = Math.sin(beginRadians);
+                menuRegion.y2 = Math.sin(endRadians);
+
+                final double x1m1 = Math.cos(beginRadians + fragment) * ringInnerEdge;
+                final double x2m1 = Math.cos(endRadians - fragment) * ringInnerEdge;
+                final double y1m1 = Math.sin(beginRadians + fragment) * ringInnerEdge;
+                final double y2m1 = Math.sin(endRadians - fragment) * ringInnerEdge;
+
+                final double x1m2 = Math.cos(beginRadians + fragment2) * ringOuterEdge;
+                final double x2m2 = Math.cos(endRadians - fragment2) * ringOuterEdge;
+                final double y1m2 = Math.sin(beginRadians + fragment2) * ringOuterEdge;
+                final double y2m2 = Math.sin(endRadians - fragment2) * ringOuterEdge;
+
+                float r = 0.0f;
+                float g = 0.0f;
+                float b = 0.0f;
+                float a = 0.5f;
+
+                //check if current mode
+                int buildMode = currentBuildMode.ordinal();
+                if (buildMode == i) {
+                    r = 0f;
+                    g = 0.5f;
+                    b = 1f;
+                    a = 0.5f;
+                    //menuRegion.highlighted = true; //draw text
+                }
+
+                //check if mouse is over this region
+                final boolean isMouseInQuad = inTriangle(x1m1, y1m1, x2m2, y2m2, x2m1, y2m1, mouseXCenter, mouseYCenter)
+                                              || inTriangle(x1m1, y1m1, x1m2, y1m2, x2m2, y2m2, mouseXCenter, mouseYCenter);
+
+                if (beginRadians <= mouseRadians && mouseRadians <= endRadians && isMouseInQuad) {
+                    r = 0.6f;
+                    g = 0.8f;
+                    b = 1f;
+                    a = 0.6f;
+                    menuRegion.highlighted = true;
+                    switchTo = menuRegion.mode;
+                }
+
+                buffer.pos(middleX + x1m1, middleY + y1m1, blitOffset).color(r, g, b, a).endVertex();
+                buffer.pos(middleX + x2m1, middleY + y2m1, blitOffset).color(r, g, b, a).endVertex();
+                buffer.pos(middleX + x2m2, middleY + y2m2, blitOffset).color(r, g, b, a).endVertex();
+                buffer.pos(middleX + x1m2, middleY + y1m2, blitOffset).color(r, g, b, a).endVertex();
+
+                currentMode++;
+            }
+        }
+
+        //Draw action backgrounds
+        for (final MenuButton btn : buttons) {
+            float r = 0.5f;
+            float g = 0.5f;
+            float b = 0.5f;
+            float a = 0.5f;
+
+            //highlight when active option
+            if (btn.action == getBuildSpeed() ||
+                btn.action == getFill() ||
+                btn.action == getCubeFill() ||
+                btn.action == getRaisedEdge() ||
+                btn.action == getLineThickness() ||
+                btn.action == getCircleStart()) {
+                r = 0.0f;
+                g = 0.5f;
+                b = 1f;
+                a = 0.6f;
+            }
+
+            //highlight when mouse over
+            if (btn.x1 <= mouseXCenter && btn.x2 >= mouseXCenter && btn.y1 <= mouseYCenter && btn.y2 >= mouseYCenter) {
+                r = 0.6f;
+                g = 0.8f;
+                b = 1f;
+                a = 0.6f;
+                btn.highlighted = true;
+                doAction = btn.action;
+            }
+
+            buffer.pos(middleX + btn.x1, middleY + btn.y1, blitOffset).color(r, g, b, a).endVertex();
+            buffer.pos(middleX + btn.x1, middleY + btn.y2, blitOffset).color(r, g, b, a).endVertex();
+            buffer.pos(middleX + btn.x2, middleY + btn.y2, blitOffset).color(r, g, b, a).endVertex();
+            buffer.pos(middleX + btn.x2, middleY + btn.y1, blitOffset).color(r, g, b, a).endVertex();
+        }
+
+        tessellator.draw();
+
+        GlStateManager.shadeModel(GL11.GL_FLAT);
+
+        GlStateManager.translatef(0f, 0f, 5f);
+        GlStateManager.enableTexture();
+        GlStateManager.color3f(1f, 1f, 1f);
+        GlStateManager.disableBlend();
+        GlStateManager.enableAlphaTest();
+        GlStateManager.bindTexture(Minecraft.getInstance().getTextureMap().getGlTextureId());
+
+        buffer.begin(GL11.GL_QUADS, DefaultVertexFormats.POSITION_TEX_COLOR);
+
+        //Draw buildmode icons
+        for (final MenuRegion menuRegion : modes) {
+
+            final double x = (menuRegion.x1 + menuRegion.x2) * 0.5 * (ringOuterEdge * 0.6 + 0.4 * ringInnerEdge);
+            final double y = (menuRegion.y1 + menuRegion.y2) * 0.5 * (ringOuterEdge * 0.6 + 0.4 * ringInnerEdge);
+
+            final TextureAtlasSprite sprite = ModClientEventHandler.getBuildModeIcon(menuRegion.mode);
+
+            final double x1 = x - 8;
+            final double x2 = x + 8;
+            final double y1 = y - 8;
+            final double y2 = y + 8;
+
+            final float f = 1f;
+            final float a = 1f;
+
+            final double u1 = 0;
+            final double u2 = 16;
+            final double v1 = 0;
+            final double v2 = 16;
+
+            buffer.pos(middleX + x1, middleY + y1, blitOffset).tex(sprite.getInterpolatedU(u1), sprite.getInterpolatedV(v1)).color(f, f, f, a).endVertex();
+            buffer.pos(middleX + x1, middleY + y2, blitOffset).tex(sprite.getInterpolatedU(u1), sprite.getInterpolatedV(v2)).color(f, f, f, a).endVertex();
+            buffer.pos(middleX + x2, middleY + y2, blitOffset).tex(sprite.getInterpolatedU(u2), sprite.getInterpolatedV(v2)).color(f, f, f, a).endVertex();
+            buffer.pos(middleX + x2, middleY + y1, blitOffset).tex(sprite.getInterpolatedU(u2), sprite.getInterpolatedV(v1)).color(f, f, f, a).endVertex();
+        }
+
+        //Draw action icons
+        for (final MenuButton button : buttons) {
+
+            final float f = 1f;
+            final float a = 1f;
+
+            final double u1 = 0;
+            final double u2 = 16;
+            final double v1 = 0;
+            final double v2 = 16;
+
+            final TextureAtlasSprite sprite = ModClientEventHandler.getModeOptionIcon(button.action);
+
+            final double btnmiddleX = (button.x1 + button.x2) / 2 + 0.01;
+            final double btnmiddleY = (button.y1 + button.y2) / 2 + 0.01;
+            final double btnx1 = btnmiddleX - 8;
+            final double btnx2 = btnmiddleX + 8;
+            final double btny1 = btnmiddleY - 8;
+            final double btny2 = btnmiddleY + 8;
+
+            buffer.pos(middleX + btnx1, middleY + btny1, blitOffset).tex(sprite.getInterpolatedU(u1), sprite.getInterpolatedV(v1)).color(f, f, f, a).endVertex();
+            buffer.pos(middleX + btnx1, middleY + btny2, blitOffset).tex(sprite.getInterpolatedU(u1), sprite.getInterpolatedV(v2)).color(f, f, f, a).endVertex();
+            buffer.pos(middleX + btnx2, middleY + btny2, blitOffset).tex(sprite.getInterpolatedU(u2), sprite.getInterpolatedV(v2)).color(f, f, f, a).endVertex();
+            buffer.pos(middleX + btnx2, middleY + btny1, blitOffset).tex(sprite.getInterpolatedU(u2), sprite.getInterpolatedV(v1)).color(f, f, f, a).endVertex();
+        }
+
+        tessellator.draw();
+
+        //Draw strings
+        //font.drawStringWithShadow("Actions", (int) (middleX - buttonDistance - 13) - font.getStringWidth("Actions") * 0.5f, (int) middleY - 38, 0xffffffff);
+
+        //Draw option strings
+        for (int i = 0; i < currentBuildMode.options.length; i++) {
+            OptionEnum option = options[i];
+            font.drawStringWithShadow(I18n.format(option.name), (int) (middleX + buttonDistance - 9), (int) middleY - 37 + i * 39, 0xeeeeeeff);
+        }
+
+        String credits = "Effortless Building";
+        font.drawStringWithShadow(credits, width - font.getStringWidth(credits) - 4, height - 10, 0x88888888);
+
+        //Draw buildmode text
+        for (final MenuRegion menuRegion : modes) {
+
+            if (menuRegion.highlighted) {
+                final double x = (menuRegion.x1 + menuRegion.x2) * 0.5;
+                final double y = (menuRegion.y1 + menuRegion.y2) * 0.5;
+
+                int fixed_x = (int) (x * textDistance);
+                final int fixed_y = (int) (y * textDistance) - font.FONT_HEIGHT / 2;
+                final String text = I18n.format(menuRegion.mode.name);
+
+                if ( x <= -0.2 ) {
+                    fixed_x -= font.getStringWidth(text);
+                } else if ( -0.2 <= x && x <= 0.2 ) {
+                    fixed_x -= font.getStringWidth(text) / 2;
+                }
+
+                font.drawStringWithShadow(text, (int) middleX + fixed_x, (int) middleY + fixed_y, 0xffffffff);
+            }
+        }
+
+        //Draw action text
+        for (final MenuButton button : buttons) {
+            if (button.highlighted) {
+                String text = TextFormatting.AQUA + button.name;
+                int wrap = 120;
+                String keybind = "";
+                String keybindFormatted = "";
+
+                //Add keybind in brackets
+                if (button.action == ActionEnum.UNDO) {
+                    keybind = ClientProxy.keyBindings[4].getLocalizedName();
+                }
+                if (button.action == ActionEnum.REDO) {
+                    keybind = ClientProxy.keyBindings[5].getLocalizedName();
+                }
+                if (button.action == ActionEnum.REPLACE) {
+                    keybind = ClientProxy.keyBindings[1].getLocalizedName();
+                }
+                if (button.action == ActionEnum.OPEN_MODIFIER_SETTINGS) {
+                    keybind = ClientProxy.keyBindings[0].getLocalizedName();
+                }
+                if (currentBuildMode.options.length > 0) {
+                    //Add (ctrl) to first two actions of first option
+                    if (button.action == currentBuildMode.options[0].actions[0]
+                        || button.action == currentBuildMode.options[0].actions[1]) {
+                        keybind = ClientProxy.keyBindings[6].getLocalizedName();
+                        if (keybind.equals("Left Control")) keybind = "Ctrl";
+                    }
+                }
+                if (!keybind.isEmpty()) keybindFormatted = TextFormatting.GRAY + "(" + WordUtils.capitalizeFully(keybind) + ")";
+
+                if (button.textSide == Direction.WEST) {
+
+                    font.drawSplitString( text, (int) (middleX + button.x1 - 8 ) - font.getStringWidth(text),
+                            (int) (middleY + button.y1 + 6), wrap, 0xffffffff);
+
+                } else if (button.textSide == Direction.EAST) {
+
+                    font.drawSplitString(text, (int) (middleX + button.x2 + 8),
+                            (int) (middleY + button.y1 + 6 ), wrap, 0xffffffff);
+
+                } else if (button.textSide == Direction.UP || button.textSide == Direction.NORTH) {
+
+                    font.drawSplitString( keybindFormatted, (int) (middleX + (button.x1 + button.x2) * 0.5 - font.getStringWidth(keybindFormatted) * 0.5),
+                            (int) (middleY + button.y1 - 26), wrap,0xffffffff);
+
+                    font.drawSplitString( text, (int) (middleX + (button.x1 + button.x2) * 0.5 - font.getStringWidth(text) * 0.5),
+                            (int) (middleY + button.y1 - 14), wrap,0xffffffff);
+
+                } else if (button.textSide == Direction.DOWN || button.textSide == Direction.SOUTH) {
+
+                    font.drawSplitString(text, (int) (middleX + (button.x1 + button.x2) * 0.5 - font.getStringWidth(text) * 0.5),
+                            (int) (middleY + button.y1 + 26), wrap, 0xffffffff);
+
+                    font.drawSplitString(keybindFormatted, (int) (middleX + (button.x1 + button.x2) * 0.5 - font.getStringWidth(keybindFormatted) * 0.5),
+                            (int) (middleY + button.y1 + 38), wrap, 0xffffffff);
+
+                }
+
+            }
+        }
+
+        GlStateManager.popMatrix();
+    }
+
+    private boolean inTriangle(final double x1, final double y1, final double x2, final double y2,
+                               final double x3, final double y3, final double x, final double y ) {
+        final double ab = (x1 - x) * (y2 - y) - (x2 - x) * (y1 - y);
+        final double bc = (x2 - x) * (y3 - y) - (x3 - x) * (y2 - y);
+        final double ca = (x3 - x) * (y1 - y) - (x1 - x) * (y3 - y);
+        return sign(ab) == sign(bc) && sign(bc) == sign(ca);
+    }
+
+    private int sign(final double n) {
+        return n > 0 ? 1 : -1;
+    }
+
+    /**
+     * Called when the mouse is clicked. Args : mouseX, mouseY, clickedButton
+     */
+    @Override
+    public boolean mouseClicked(double mouseX, double mouseY, int mouseButton) {
+        EffortlessBuilding.log("mouse clicked");
+
+//        KeyBinding.updateKeyBindState();
+//        KeyBinding.setKeyBindState(ClientProxy.keyBindings[3].getKeyCode(), true);
+
+//        if (mouseButton == 0) {
+//            this.mc.displayGuiScreen(null);
+//
+//            if (this.mc.currentScreen == null) {
+//                this.mc.setIngameFocus();
+//            }
+//        }
+        return super.mouseClicked(mouseX, mouseY, mouseButton);
+    }
+
+}
+

src/main/java/nl/requios/effortlessbuilding/gui/buildmodifier/ArraySettingsGui.java

@@ -0,0 +1,202 @@
+package nl.requios.effortlessbuilding.gui.buildmodifier;
+
+import net.minecraft.client.gui.screen.Screen;
+import net.minecraft.client.gui.widget.Widget;
+import net.minecraft.client.gui.widget.button.Button;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.text.TextFormatting;
+import net.minecraftforge.api.distmarker.Dist;
+import net.minecraftforge.api.distmarker.OnlyIn;
+import nl.requios.effortlessbuilding.EffortlessBuilding;
+import nl.requios.effortlessbuilding.buildmodifier.Array;
+import nl.requios.effortlessbuilding.buildmodifier.ModifierSettingsManager;
+import nl.requios.effortlessbuilding.gui.elements.GuiCheckBoxFixed;
+import nl.requios.effortlessbuilding.gui.elements.GuiCollapsibleScrollEntry;
+import nl.requios.effortlessbuilding.gui.elements.GuiNumberField;
+import nl.requios.effortlessbuilding.gui.elements.GuiScrollPane;
+import nl.requios.effortlessbuilding.helper.ReachHelper;
+
+import java.util.ArrayList;
+import java.util.List;
+
+@OnlyIn(Dist.CLIENT)
+public class ArraySettingsGui extends GuiCollapsibleScrollEntry {
+
+    protected List<GuiNumberField> arrayNumberFieldList = new ArrayList<>();
+
+    private GuiCheckBoxFixed buttonArrayEnabled;
+    private GuiNumberField textArrayOffsetX, textArrayOffsetY, textArrayOffsetZ, textArrayCount;
+
+    public ArraySettingsGui(GuiScrollPane scrollPane) {
+        super(scrollPane);
+    }
+
+    @Override
+    public void init(List<Widget> buttons) {
+        super.init(buttons);
+
+        int y = top;
+        buttonArrayEnabled = new GuiCheckBoxFixed(left - 15 + 8, y, "", false) {
+            @Override
+            public void onClick(double mouseX, double mouseY) {
+                super.onClick(mouseX, mouseY);
+                setCollapsed(!buttonArrayEnabled.isChecked());
+            }
+        };
+        buttons.add(buttonArrayEnabled);
+
+        y = top + 20;
+        textArrayOffsetX = new GuiNumberField(font, buttons, left + 70, y, 50, 18);
+        textArrayOffsetX.setNumber(0);
+        textArrayOffsetX.setTooltip("How much each copy is shifted.");
+        arrayNumberFieldList.add(textArrayOffsetX);
+
+        textArrayOffsetY = new GuiNumberField(font, buttons, left + 140, y, 50, 18);
+        textArrayOffsetY.setNumber(0);
+        textArrayOffsetY.setTooltip("How much each copy is shifted.");
+        arrayNumberFieldList.add(textArrayOffsetY);
+
+        textArrayOffsetZ = new GuiNumberField(font, buttons, left + 210, y, 50, 18);
+        textArrayOffsetZ.setNumber(0);
+        textArrayOffsetZ.setTooltip("How much each copy is shifted.");
+        arrayNumberFieldList.add(textArrayOffsetZ);
+
+        y = top + 50;
+        textArrayCount = new GuiNumberField(font, buttons, left + 55, y, 50, 18);
+        textArrayCount.setNumber(5);
+        textArrayCount.setTooltip("How many copies should be made.");
+        arrayNumberFieldList.add(textArrayCount);
+
+        ModifierSettingsManager.ModifierSettings modifierSettings = ModifierSettingsManager.getModifierSettings(mc.player);
+        if (modifierSettings != null) {
+            Array.ArraySettings a = modifierSettings.getArraySettings();
+            buttonArrayEnabled.setIsChecked(a.enabled);
+            textArrayOffsetX.setNumber(a.offset.getX());
+            textArrayOffsetY.setNumber(a.offset.getY());
+            textArrayOffsetZ.setNumber(a.offset.getZ());
+            textArrayCount.setNumber(a.count);
+        }
+
+        setCollapsed(!buttonArrayEnabled.isChecked());
+    }
+
+    public void updateScreen() {
+        arrayNumberFieldList.forEach(GuiNumberField::update);
+    }
+
+    @Override
+    public void drawEntry(int slotIndex, int x, int y, int listWidth, int slotHeight, int mouseX, int mouseY,
+                          boolean isSelected, float partialTicks) {
+        int yy = y;
+        int offset = 8;
+
+        buttonArrayEnabled.render(mouseX, mouseY, partialTicks);
+        if (buttonArrayEnabled.isChecked()) {
+            buttonArrayEnabled.y = yy;
+            font.drawString("Array enabled", left + offset, yy + 2, 0xFFFFFF);
+
+            yy = y + 20;
+            font.drawString("Offset", left + offset, yy + 5, 0xFFFFFF);
+            font.drawString("X", left + 50 + offset, yy + 5, 0xFFFFFF);
+            textArrayOffsetX.y = yy;
+            font.drawString("Y", left + 120 + offset, yy + 5, 0xFFFFFF);
+            textArrayOffsetY.y = yy;
+            font.drawString("Z", left + 190 + offset, yy + 5, 0xFFFFFF);
+            textArrayOffsetZ.y = yy;
+
+            yy = y + 50;
+            font.drawString("Count", left + offset, yy + 5, 0xFFFFFF);
+            textArrayCount.y = yy;
+
+            int currentReach = Math.max(-1, getArrayReach());
+            int maxReach = ReachHelper.getMaxReach(mc.player);
+            TextFormatting reachColor = isCurrentReachValid(currentReach, maxReach) ? TextFormatting.GRAY : TextFormatting.RED;
+            String reachText = "Reach: " + reachColor + currentReach + TextFormatting.GRAY + "/" + TextFormatting.GRAY + maxReach;
+            font.drawString(reachText, left + 176 + offset, yy + 5, 0xFFFFFF);
+
+            arrayNumberFieldList.forEach(numberField -> numberField.drawNumberField(mouseX, mouseY, partialTicks));
+        } else {
+            buttonArrayEnabled.y = yy;
+            font.drawString("Array disabled", left + offset, yy + 2, 0x999999);
+        }
+
+    }
+
+    public void drawTooltip(Screen guiScreen, int mouseX, int mouseY) {
+        //Draw tooltips last
+        if (buttonArrayEnabled.isChecked())
+        {
+            arrayNumberFieldList.forEach(numberField -> numberField.drawTooltip(scrollPane.parent, mouseX, mouseY));
+        }
+    }
+
+    @Override
+    public boolean charTyped(char typedChar, int keyCode) {
+        super.charTyped(typedChar, keyCode);
+        for (GuiNumberField numberField : arrayNumberFieldList) {
+            numberField.charTyped(typedChar, keyCode);
+        }
+        return true;
+    }
+
+    @Override
+    public boolean mousePressed(int slotIndex, int mouseX, int mouseY, int mouseEvent, int relativeX, int relativeY) {
+        arrayNumberFieldList.forEach(numberField -> numberField.mouseClicked(mouseX, mouseY, mouseEvent));
+
+        boolean insideArrayEnabledLabel = mouseX >= left && mouseX < right && relativeY >= -2 && relativeY < 12;
+
+        if (insideArrayEnabledLabel) {
+            buttonArrayEnabled.playDownSound(this.mc.getSoundHandler());
+            buttonArrayEnabled.onClick(mouseX, mouseY);
+        }
+
+        return true;
+    }
+
+    public Array.ArraySettings getArraySettings() {
+        boolean arrayEnabled = buttonArrayEnabled.isChecked();
+        BlockPos arrayOffset = new BlockPos(0, 0, 0);
+        try {
+            arrayOffset = new BlockPos(textArrayOffsetX.getNumber(), textArrayOffsetY.getNumber(), textArrayOffsetZ.getNumber());
+        } catch (NumberFormatException | NullPointerException ex) {
+            EffortlessBuilding.log(mc.player, "Array offset not a valid number.");
+        }
+
+        int arrayCount = 5;
+        try {
+            arrayCount = (int) textArrayCount.getNumber();
+        } catch (NumberFormatException | NullPointerException ex) {
+            EffortlessBuilding.log(mc.player, "Array count not a valid number.");
+        }
+
+        return new Array.ArraySettings(arrayEnabled, arrayOffset, arrayCount);
+    }
+
+    @Override
+    protected String getName() {
+        return "Array";
+    }
+
+    @Override
+    protected int getExpandedHeight() {
+        return 80;
+    }
+
+    private int getArrayReach() {
+        try
+        {
+            //find largest offset
+            double x = Math.abs(textArrayOffsetX.getNumber());
+            double y = Math.abs(textArrayOffsetY.getNumber());
+            double z = Math.abs(textArrayOffsetZ.getNumber());
+            double largestOffset = Math.max(Math.max(x, y), z);
+            return (int) (largestOffset * textArrayCount.getNumber());
+        } catch (NumberFormatException | NullPointerException ex) {
+            return -1;
+        }
+    }
+
+    private boolean isCurrentReachValid(int currentReach, int maxReach) {
+        return currentReach <= maxReach && currentReach > -1;
+    }
+}

src/main/java/nl/requios/effortlessbuilding/gui/buildmodifier/MirrorSettingsGui.java

@@ -0,0 +1,283 @@
+package nl.requios.effortlessbuilding.gui.buildmodifier;
+
+import net.minecraft.client.gui.widget.Widget;
+import net.minecraft.client.gui.widget.button.Button;
+import net.minecraft.client.gui.screen.Screen;
+import net.minecraft.util.ResourceLocation;
+import net.minecraft.util.math.Vec3d;
+import net.minecraft.util.text.TextFormatting;
+import net.minecraftforge.api.distmarker.Dist;
+import net.minecraftforge.api.distmarker.OnlyIn;
+import nl.requios.effortlessbuilding.EffortlessBuilding;
+import nl.requios.effortlessbuilding.buildmodifier.Mirror;
+import nl.requios.effortlessbuilding.buildmodifier.ModifierSettingsManager;
+import nl.requios.effortlessbuilding.gui.elements.*;
+import nl.requios.effortlessbuilding.helper.ReachHelper;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
+@SuppressWarnings("Duplicates")
+@OnlyIn(Dist.CLIENT)
+public class MirrorSettingsGui extends GuiCollapsibleScrollEntry {
+
+    protected static final ResourceLocation BUILDING_ICONS = new ResourceLocation(EffortlessBuilding.MODID, "textures/gui/building_icons.png");
+
+    protected List<Button> mirrorButtonList = new ArrayList<>();
+    protected List<GuiIconButton> mirrorIconButtonList = new ArrayList<>();
+    protected List<GuiNumberField> mirrorNumberFieldList = new ArrayList<>();
+
+    private GuiNumberField textMirrorPosX, textMirrorPosY, textMirrorPosZ, textMirrorRadius;
+    private GuiCheckBoxFixed buttonMirrorEnabled, buttonMirrorX, buttonMirrorY, buttonMirrorZ;
+    private GuiIconButton buttonCurrentPosition, buttonToggleOdd, buttonDrawPlanes, buttonDrawLines;
+    private boolean drawPlanes, drawLines, toggleOdd;
+
+    public MirrorSettingsGui(GuiScrollPane scrollPane) {
+        super(scrollPane);
+    }
+
+    @Override
+    public void init(List<Widget> buttonList) {
+        super.init(buttonList);
+
+        int y = top - 2;
+        buttonMirrorEnabled = new GuiCheckBoxFixed(left - 15 + 8, y, "", false) {
+            @Override
+            public void onClick(double mouseX, double mouseY) {
+                super.onClick(mouseX, mouseY);
+                setCollapsed(!buttonMirrorEnabled.isChecked());
+            }
+        };
+        buttonList.add(buttonMirrorEnabled);
+
+        y = top + 18;
+        textMirrorPosX = new GuiNumberField(font, buttonList, left + 58, y, 62, 18);
+        textMirrorPosX.setNumber(0);
+        textMirrorPosX.setTooltip(
+                Arrays.asList("The position of the mirror.", TextFormatting.GRAY + "For odd numbered builds add 0.5."));
+        mirrorNumberFieldList.add(textMirrorPosX);
+
+        textMirrorPosY = new GuiNumberField(font, buttonList, left + 138, y, 62, 18);
+        textMirrorPosY.setNumber(64);
+        textMirrorPosY.setTooltip(Arrays.asList("The position of the mirror.", TextFormatting.GRAY + "For odd numbered builds add 0.5."));
+        mirrorNumberFieldList.add(textMirrorPosY);
+
+        textMirrorPosZ = new GuiNumberField(font, buttonList, left + 218, y, 62, 18);
+        textMirrorPosZ.setNumber(0);
+        textMirrorPosZ.setTooltip(Arrays.asList("The position of the mirror.", TextFormatting.GRAY + "For odd numbered builds add 0.5."));
+        mirrorNumberFieldList.add(textMirrorPosZ);
+
+        y = top + 50;
+        buttonMirrorX = new GuiCheckBoxFixed(left + 60, y, " X", true);
+        mirrorButtonList.add(buttonMirrorX);
+
+        buttonMirrorY = new GuiCheckBoxFixed(left + 100, y, " Y", false);
+        mirrorButtonList.add(buttonMirrorY);
+
+        buttonMirrorZ = new GuiCheckBoxFixed(left + 140, y, " Z", false);
+        mirrorButtonList.add(buttonMirrorZ);
+
+        y = top + 47;
+        textMirrorRadius = new GuiNumberField(font, buttonList, left + 218, y, 62, 18);
+        textMirrorRadius.setNumber(50);
+        //TODO change to diameter (remove /2)
+        textMirrorRadius.setTooltip(Arrays.asList("How far the mirror reaches in any direction.",
+                TextFormatting.GRAY + "Max: " + TextFormatting.GOLD + ReachHelper.getMaxReach(mc.player) / 2,
+                TextFormatting.GRAY + "Upgradeable in survival with reach upgrades."));
+        mirrorNumberFieldList.add(textMirrorRadius);
+
+        y = top + 72;
+        buttonCurrentPosition = new GuiIconButton(left + 5, y, 0, 0, BUILDING_ICONS, button -> {
+            Vec3d pos = new Vec3d(Math.floor(mc.player.posX) + 0.5, Math.floor(mc.player.posY) + 0.5, Math.floor(mc.player.posZ) + 0.5);
+            textMirrorPosX.setNumber(pos.x);
+            textMirrorPosY.setNumber(pos.y);
+            textMirrorPosZ.setNumber(pos.z);
+        });
+        buttonCurrentPosition.setTooltip("Set mirror position to current player position");
+        mirrorIconButtonList.add(buttonCurrentPosition);
+
+        buttonToggleOdd = new GuiIconButton(left + 35, y, 0, 20, BUILDING_ICONS, button -> {
+            toggleOdd = !toggleOdd;
+            buttonToggleOdd.setUseAlternateIcon(toggleOdd);
+            if (toggleOdd) {
+                buttonToggleOdd.setTooltip(Arrays.asList("Set mirror position to corner of block", "for even numbered builds"));
+                textMirrorPosX.setNumber(textMirrorPosX.getNumber() + 0.5);
+                textMirrorPosY.setNumber(textMirrorPosY.getNumber() + 0.5);
+                textMirrorPosZ.setNumber(textMirrorPosZ.getNumber() + 0.5);
+            } else {
+                buttonToggleOdd.setTooltip(Arrays.asList("Set mirror position to middle of block", "for odd numbered builds"));
+                textMirrorPosX.setNumber(Math.floor(textMirrorPosX.getNumber()));
+                textMirrorPosY.setNumber(Math.floor(textMirrorPosY.getNumber()));
+                textMirrorPosZ.setNumber(Math.floor(textMirrorPosZ.getNumber()));
+            }
+        });
+        buttonToggleOdd.setTooltip(Arrays.asList("Set mirror position to middle of block", "for odd numbered builds"));
+        mirrorIconButtonList.add(buttonToggleOdd);
+
+        buttonDrawLines = new GuiIconButton(left + 65, y, 0, 40, BUILDING_ICONS, button -> {
+            drawLines = !drawLines;
+            buttonDrawLines.setUseAlternateIcon(drawLines);
+            buttonDrawLines.setTooltip(drawLines ? "Hide lines" : "Show lines");
+        });
+        buttonDrawLines.setTooltip("Show lines");
+        mirrorIconButtonList.add(buttonDrawLines);
+
+        buttonDrawPlanes = new GuiIconButton(left + 95, y, 0, 60, BUILDING_ICONS, button -> {
+            drawPlanes = !drawPlanes;
+            buttonDrawPlanes.setUseAlternateIcon(drawPlanes);
+            buttonDrawPlanes.setTooltip(drawPlanes ? "Hide area" : "Show area");
+        });
+        buttonDrawPlanes.setTooltip("Show area");
+        mirrorIconButtonList.add(buttonDrawPlanes);
+
+        ModifierSettingsManager.ModifierSettings modifierSettings = ModifierSettingsManager.getModifierSettings(mc.player);
+        if (modifierSettings != null) {
+            Mirror.MirrorSettings m = modifierSettings.getMirrorSettings();
+            buttonMirrorEnabled.setIsChecked(m.enabled);
+            textMirrorPosX.setNumber(m.position.x);
+            textMirrorPosY.setNumber(m.position.y);
+            textMirrorPosZ.setNumber(m.position.z);
+            buttonMirrorX.setIsChecked(m.mirrorX);
+            buttonMirrorY.setIsChecked(m.mirrorY);
+            buttonMirrorZ.setIsChecked(m.mirrorZ);
+            textMirrorRadius.setNumber(m.radius);
+            drawLines = m.drawLines;
+            drawPlanes = m.drawPlanes;
+            buttonDrawLines.setUseAlternateIcon(drawLines);
+            buttonDrawPlanes.setUseAlternateIcon(drawPlanes);
+            buttonDrawLines.setTooltip(drawLines ? "Hide lines" : "Show lines");
+            buttonDrawPlanes.setTooltip(drawPlanes ? "Hide area" : "Show area");
+            if (textMirrorPosX.getNumber() == Math.floor(textMirrorPosX.getNumber())) {
+                toggleOdd = false;
+                buttonToggleOdd.setTooltip(Arrays.asList("Set mirror position to middle of block", "for odd numbered builds"));
+            } else {
+                toggleOdd = true;
+                buttonToggleOdd.setTooltip(Arrays.asList("Set mirror position to corner of block", "for even numbered builds"));
+            }
+            buttonToggleOdd.setUseAlternateIcon(toggleOdd);
+        }
+
+        buttonList.addAll(mirrorButtonList);
+        buttonList.addAll(mirrorIconButtonList);
+
+        setCollapsed(!buttonMirrorEnabled.isChecked());
+    }
+
+    @Override
+    public void updateScreen() {
+        super.updateScreen();
+        mirrorNumberFieldList.forEach(GuiNumberField::update);
+    }
+
+    @Override
+    public void drawEntry(int slotIndex, int x, int y, int listWidth, int slotHeight, int mouseX, int mouseY,
+                          boolean isSelected, float partialTicks) {
+        
+        int yy = y;
+        int offset = 8;
+
+        buttonMirrorEnabled.render(mouseX, mouseY, partialTicks);
+        if (buttonMirrorEnabled.isChecked()) {
+            buttonMirrorEnabled.y = yy;
+            font.drawString("Mirror enabled", left + offset, yy + 2, 0xFFFFFF);
+
+            yy = y + 18;
+            font.drawString("Position", left + offset, yy + 5, 0xFFFFFF);
+            font.drawString("X", left + 40 + offset, yy + 5, 0xFFFFFF);
+            textMirrorPosX.y = yy;
+            font.drawString("Y", left + 120 + offset, yy + 5, 0xFFFFFF);
+            textMirrorPosY.y = yy;
+            font.drawString("Z", left + 200 + offset, yy + 5, 0xFFFFFF);
+            textMirrorPosZ.y = yy;
+
+            yy = y + 50;
+            font.drawString("Direction", left + offset, yy + 2, 0xFFFFFF);
+            buttonMirrorX.y = yy;
+            buttonMirrorY.y = yy;
+            buttonMirrorZ.y = yy;
+            font.drawString("Radius", left + 176 + offset, yy + 2, 0xFFFFFF);
+            textMirrorRadius.y = yy - 3;
+
+            yy = y + 72;
+            buttonCurrentPosition.y = yy;
+            buttonToggleOdd.y = yy;
+            buttonDrawLines.y = yy;
+            buttonDrawPlanes.y = yy;
+
+            mirrorButtonList.forEach(button -> button.render(mouseX, mouseY, partialTicks));
+            mirrorIconButtonList.forEach(button -> button.render(mouseX, mouseY, partialTicks));
+            mirrorNumberFieldList.forEach(numberField -> numberField.drawNumberField(mouseX, mouseY, partialTicks));
+        } else {
+            buttonMirrorEnabled.y = yy;
+            font.drawString("Mirror disabled", left + offset, yy + 2, 0x999999);
+        }
+
+    }
+
+    public void drawTooltip(Screen guiScreen, int mouseX, int mouseY) {
+        //Draw tooltips last
+        if (buttonMirrorEnabled.isChecked())
+        {
+            mirrorIconButtonList.forEach(iconButton -> iconButton.drawTooltip(scrollPane.parent, mouseX, mouseY));
+            mirrorNumberFieldList.forEach(numberField -> numberField.drawTooltip(scrollPane.parent, mouseX, mouseY));
+        }
+    }
+
+    @Override
+    public boolean charTyped(char typedChar, int keyCode) {
+        super.charTyped(typedChar, keyCode);
+        for (GuiNumberField numberField : mirrorNumberFieldList) {
+            numberField.charTyped(typedChar, keyCode);
+        }
+        return true;
+    }
+
+    @Override
+    public boolean mousePressed(int slotIndex, int mouseX, int mouseY, int mouseEvent, int relativeX, int relativeY) {
+        mirrorNumberFieldList.forEach(numberField -> numberField.mouseClicked(mouseX, mouseY, mouseEvent));
+
+        boolean insideMirrorEnabledLabel = mouseX >= left && mouseX < right && relativeY >= -2 && relativeY < 12;
+
+        if (insideMirrorEnabledLabel) {
+            buttonMirrorEnabled.playDownSound(this.mc.getSoundHandler());
+            buttonMirrorEnabled.onClick(mouseX, mouseY);
+        }
+
+        return true;
+    }
+
+    public Mirror.MirrorSettings getMirrorSettings() {
+        boolean mirrorEnabled = buttonMirrorEnabled.isChecked();
+
+        Vec3d mirrorPos = new Vec3d(0, 64, 0);
+        try {
+            mirrorPos = new Vec3d(textMirrorPosX.getNumber(), textMirrorPosY.getNumber(), textMirrorPosZ.getNumber());
+        } catch (NumberFormatException | NullPointerException ex) {
+            EffortlessBuilding.log(mc.player, "Mirror position not a valid number.");
+        }
+
+        boolean mirrorX = buttonMirrorX.isChecked();
+        boolean mirrorY = buttonMirrorY.isChecked();
+        boolean mirrorZ = buttonMirrorZ.isChecked();
+
+        int mirrorRadius = 50;
+        try {
+            mirrorRadius = (int) textMirrorRadius.getNumber();
+        } catch (NumberFormatException | NullPointerException ex) {
+            EffortlessBuilding.log(mc.player, "Mirror radius not a valid number.");
+        }
+
+        return new Mirror.MirrorSettings(mirrorEnabled, mirrorPos, mirrorX, mirrorY, mirrorZ, mirrorRadius, drawLines, drawPlanes);
+    }
+
+    @Override
+    protected String getName() {
+        return "Mirror";
+    }
+
+    @Override
+    protected int getExpandedHeight() {
+        return 100;
+    }
+}

src/main/java/nl/requios/effortlessbuilding/gui/buildmodifier/ModifierSettingsGui.java

@@ -0,0 +1,144 @@
+package nl.requios.effortlessbuilding.gui.buildmodifier;
+
+import net.minecraft.client.Minecraft;
+import net.minecraft.client.gui.screen.Screen;
+import net.minecraft.client.gui.widget.button.Button;
+import net.minecraft.util.text.ITextComponent;
+import net.minecraft.util.text.TranslationTextComponent;
+import net.minecraftforge.api.distmarker.Dist;
+import net.minecraftforge.api.distmarker.OnlyIn;
+import nl.requios.effortlessbuilding.EffortlessBuilding;
+import nl.requios.effortlessbuilding.buildmodifier.Array;
+import nl.requios.effortlessbuilding.buildmodifier.Mirror;
+import nl.requios.effortlessbuilding.buildmodifier.ModifierSettingsManager;
+import nl.requios.effortlessbuilding.buildmodifier.RadialMirror;
+import nl.requios.effortlessbuilding.gui.elements.GuiScrollPane;
+import nl.requios.effortlessbuilding.network.ModifierSettingsMessage;
+import nl.requios.effortlessbuilding.network.PacketHandler;
+import nl.requios.effortlessbuilding.proxy.ClientProxy;
+
+@OnlyIn(Dist.CLIENT)
+public class ModifierSettingsGui extends Screen {
+
+    private GuiScrollPane scrollPane;
+    private Button buttonClose;
+
+    private MirrorSettingsGui mirrorSettingsGui;
+    private ArraySettingsGui arraySettingsGui;
+    private RadialMirrorSettingsGui radialMirrorSettingsGui;
+
+    public ModifierSettingsGui() {
+        super(new TranslationTextComponent("effortlessbuilding.screen.modifier_settings"));
+    }
+
+    @Override
+    //Create buttons and labels and add them to buttonList/labelList
+    protected void init() {
+        scrollPane = new GuiScrollPane(this, font, 8, height - 30);
+
+        mirrorSettingsGui = new MirrorSettingsGui(scrollPane);
+        scrollPane.AddListEntry(mirrorSettingsGui);
+
+        arraySettingsGui = new ArraySettingsGui(scrollPane);
+        scrollPane.AddListEntry(arraySettingsGui);
+
+        radialMirrorSettingsGui = new RadialMirrorSettingsGui(scrollPane);
+        scrollPane.AddListEntry(radialMirrorSettingsGui);
+
+        scrollPane.init(buttons);
+
+        //Close button
+        int y = height - 26;
+        buttonClose = new Button(width / 2 - 100, y, 200, 20, "Close", (button) -> {
+            Minecraft.getInstance().player.closeScreen();
+        });
+        buttons.add(buttonClose);
+    }
+
+    @Override
+    //Process general logic, i.e. hide buttons
+    public void tick() {
+        scrollPane.updateScreen();
+
+        handleMouseInput();
+    }
+
+    @Override
+    //Set colors using GL11, use the fontObj field to display text
+    //Use drawTexturedModalRect() to transfers areas of a texture resource to the screen
+    public void render(int mouseX, int mouseY, float partialTicks) {
+        this.renderBackground();
+
+        scrollPane.render(mouseX, mouseY, partialTicks);
+
+        buttonClose.render(mouseX, mouseY, partialTicks);
+
+        scrollPane.drawTooltip(this, mouseX, mouseY);
+    }
+
+
+    @Override
+    public boolean charTyped(char typedChar, int keyCode) {
+        super.charTyped(typedChar, keyCode);
+        scrollPane.charTyped(typedChar, keyCode);
+        if (keyCode == ClientProxy.keyBindings[0].getKey().getKeyCode()) {
+            minecraft.player.closeScreen();
+        }
+        return false;
+    }
+
+    @Override
+    public boolean mouseClicked(double mouseX, double mouseY, int mouseButton) {
+        super.mouseClicked(mouseX, mouseY, mouseButton);
+        buttons.forEach(button -> button.mouseClicked(mouseX, mouseY, mouseButton));
+        return scrollPane.mouseClicked(mouseX, mouseY, mouseButton);
+    }
+
+    @Override
+    public boolean mouseReleased(double mouseX, double mouseY, int state) {
+        if (state != 0 || !scrollPane.mouseReleased(mouseX, mouseY, state))
+        {
+            return super.mouseReleased(mouseX, mouseY, state);
+        }
+        return false;
+    }
+
+    public void handleMouseInput() {
+        //super.handleMouseInput();
+        scrollPane.handleMouseInput();
+
+        //Scrolling numbers
+//        int mouseX = Mouse.getEventX() * this.width / this.mc.displayWidth;
+//        int mouseY = this.height - Mouse.getEventY() * this.height / this.mc.displayHeight - 1;
+//        numberFieldList.forEach(numberField -> numberField.handleMouseInput(mouseX, mouseY));
+    }
+
+    @Override
+    public void removed() {
+        scrollPane.onGuiClosed();
+
+        //save everything
+        Mirror.MirrorSettings m = mirrorSettingsGui.getMirrorSettings();
+        Array.ArraySettings a = arraySettingsGui.getArraySettings();
+        RadialMirror.RadialMirrorSettings r = radialMirrorSettingsGui.getRadialMirrorSettings();
+
+        ModifierSettingsManager.ModifierSettings modifierSettings = ModifierSettingsManager.getModifierSettings(minecraft.player);
+        if (modifierSettings == null) modifierSettings = new ModifierSettingsManager.ModifierSettings();
+        modifierSettings.setMirrorSettings(m);
+        modifierSettings.setArraySettings(a);
+        modifierSettings.setRadialMirrorSettings(r);
+
+        //Sanitize
+        String error = ModifierSettingsManager.sanitize(modifierSettings, minecraft.player);
+        if (!error.isEmpty()) EffortlessBuilding.log(minecraft.player, error);
+
+        ModifierSettingsManager.setModifierSettings(minecraft.player, modifierSettings);
+
+        //Send to server
+        PacketHandler.INSTANCE.sendToServer(new ModifierSettingsMessage(modifierSettings));
+
+        //TODO fix not being able to scroll after this gui has opened
+        Minecraft.getInstance().mouseHelper.grabMouse();
+    }
+
+}

src/main/java/nl/requios/effortlessbuilding/gui/buildmodifier/RadialMirrorSettingsGui.java

@@ -0,0 +1,288 @@
+package nl.requios.effortlessbuilding.gui.buildmodifier;
+
+import net.minecraft.client.gui.widget.Widget;
+import net.minecraft.client.gui.widget.button.Button;
+import net.minecraft.client.gui.screen.Screen;
+import net.minecraft.util.ResourceLocation;
+import net.minecraft.util.math.Vec3d;
+import net.minecraft.util.text.TextFormatting;
+import net.minecraftforge.api.distmarker.Dist;
+import net.minecraftforge.api.distmarker.OnlyIn;
+import nl.requios.effortlessbuilding.EffortlessBuilding;
+import nl.requios.effortlessbuilding.buildmodifier.ModifierSettingsManager;
+import nl.requios.effortlessbuilding.buildmodifier.RadialMirror;
+import nl.requios.effortlessbuilding.gui.elements.*;
+import nl.requios.effortlessbuilding.helper.ReachHelper;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
+@SuppressWarnings("Duplicates")
+@OnlyIn(Dist.CLIENT)
+public class RadialMirrorSettingsGui extends GuiCollapsibleScrollEntry {
+
+    protected static final ResourceLocation BUILDING_ICONS = new ResourceLocation(EffortlessBuilding.MODID, "textures/gui/building_icons.png");
+
+    protected List<Button> radialMirrorButtonList = new ArrayList<>();
+    protected List<GuiIconButton> radialMirrorIconButtonList = new ArrayList<>();
+    protected List<GuiNumberField> radialMirrorNumberFieldList = new ArrayList<>();
+
+    private GuiNumberField textRadialMirrorPosX, textRadialMirrorPosY, textRadialMirrorPosZ, textRadialMirrorSlices, textRadialMirrorRadius;
+    private GuiCheckBoxFixed buttonRadialMirrorEnabled, buttonRadialMirrorAlternate;
+    private GuiIconButton buttonCurrentPosition, buttonToggleOdd, buttonDrawPlanes, buttonDrawLines;
+    private boolean drawPlanes, drawLines, toggleOdd;
+
+    public RadialMirrorSettingsGui(GuiScrollPane scrollPane) {
+        super(scrollPane);
+    }
+
+    @Override
+    public void init(List<Widget> buttonList) {
+        super.init(buttonList);
+
+        int y = top - 2;
+        buttonRadialMirrorEnabled = new GuiCheckBoxFixed(left - 15 + 8, y, "", false) {
+            @Override
+            public void onClick(double mouseX, double mouseY) {
+                super.onClick(mouseX, mouseY);
+                setCollapsed(!buttonRadialMirrorEnabled.isChecked());
+            }
+        };
+        buttonList.add(buttonRadialMirrorEnabled);
+
+        y = top + 18;
+        textRadialMirrorPosX = new GuiNumberField(font, buttonList, left + 58, y, 62, 18);
+        textRadialMirrorPosX.setNumber(0);
+        textRadialMirrorPosX.setTooltip(
+                Arrays.asList("The position of the radial mirror.", TextFormatting.GRAY + "For odd numbered builds add 0.5."));
+        radialMirrorNumberFieldList.add(textRadialMirrorPosX);
+
+        textRadialMirrorPosY = new GuiNumberField(font, buttonList, left + 138, y, 62, 18);
+        textRadialMirrorPosY.setNumber(64);
+        textRadialMirrorPosY.setTooltip(Arrays.asList("The position of the radial mirror.", TextFormatting.GRAY + "For odd numbered builds add 0.5."));
+        radialMirrorNumberFieldList.add(textRadialMirrorPosY);
+
+        textRadialMirrorPosZ = new GuiNumberField(font, buttonList, left + 218, y, 62, 18);
+        textRadialMirrorPosZ.setNumber(0);
+        textRadialMirrorPosZ.setTooltip(Arrays.asList("The position of the radial mirror.", TextFormatting.GRAY + "For odd numbered builds add 0.5."));
+        radialMirrorNumberFieldList.add(textRadialMirrorPosZ);
+
+        y = top + 47;
+        textRadialMirrorSlices = new GuiNumberField(font, buttonList, left + 55, y, 50, 18);
+        textRadialMirrorSlices.setNumber(4);
+        textRadialMirrorSlices.setTooltip(Arrays.asList("The number of repeating slices.", TextFormatting.GRAY + "Minimally 2."));
+        radialMirrorNumberFieldList.add(textRadialMirrorSlices);
+
+        textRadialMirrorRadius = new GuiNumberField(font, buttonList, left + 218, y, 62, 18);
+        textRadialMirrorRadius.setNumber(50);
+        //TODO change to diameter (remove /2)
+        textRadialMirrorRadius.setTooltip(Arrays.asList("How far the radial mirror reaches from its center position.",
+                TextFormatting.GRAY + "Max: " + TextFormatting.GOLD + ReachHelper.getMaxReach(mc.player) / 2,
+                TextFormatting.GRAY + "Upgradeable in survival with reach upgrades."));
+        radialMirrorNumberFieldList.add(textRadialMirrorRadius);
+
+        y = top + 72;
+        buttonCurrentPosition = new GuiIconButton(left + 5, y, 0, 0, BUILDING_ICONS, button -> {
+            Vec3d pos = new Vec3d(Math.floor(mc.player.posX) + 0.5, Math.floor(mc.player.posY) + 0.5, Math.floor(mc.player.posZ) + 0.5);
+            textRadialMirrorPosX.setNumber(pos.x);
+            textRadialMirrorPosY.setNumber(pos.y);
+            textRadialMirrorPosZ.setNumber(pos.z);
+        });
+        buttonCurrentPosition.setTooltip("Set radial mirror position to current player position");
+        radialMirrorIconButtonList.add(buttonCurrentPosition);
+
+        buttonToggleOdd = new GuiIconButton(left + 35, y, 0, 20, BUILDING_ICONS, button -> {
+            toggleOdd = !toggleOdd;
+            buttonToggleOdd.setUseAlternateIcon(toggleOdd);
+            if (toggleOdd) {
+                buttonToggleOdd.setTooltip(Arrays.asList("Set mirror position to corner of block", "for even numbered builds"));
+                textRadialMirrorPosX.setNumber(textRadialMirrorPosX.getNumber() + 0.5);
+                textRadialMirrorPosY.setNumber(textRadialMirrorPosY.getNumber() + 0.5);
+                textRadialMirrorPosZ.setNumber(textRadialMirrorPosZ.getNumber() + 0.5);
+            } else {
+                buttonToggleOdd.setTooltip(Arrays.asList("Set mirror position to middle of block", "for odd numbered builds"));
+                textRadialMirrorPosX.setNumber(Math.floor(textRadialMirrorPosX.getNumber()));
+                textRadialMirrorPosY.setNumber(Math.floor(textRadialMirrorPosY.getNumber()));
+                textRadialMirrorPosZ.setNumber(Math.floor(textRadialMirrorPosZ.getNumber()));
+            }
+        });
+        buttonToggleOdd.setTooltip(Arrays.asList("Set radial mirror position to middle of block", "for odd numbered builds"));
+        radialMirrorIconButtonList.add(buttonToggleOdd);
+
+        buttonDrawLines = new GuiIconButton(left + 65, y, 0, 40, BUILDING_ICONS, button -> {
+            drawLines = !drawLines;
+            buttonDrawLines.setUseAlternateIcon(drawLines);
+            buttonDrawLines.setTooltip(drawLines ? "Hide lines" : "Show lines");
+        });
+        buttonDrawLines.setTooltip("Show lines");
+        radialMirrorIconButtonList.add(buttonDrawLines);
+
+        buttonDrawPlanes = new GuiIconButton(left + 95, y, 0, 60, BUILDING_ICONS, button -> {
+            drawPlanes = !drawPlanes;
+            buttonDrawPlanes.setUseAlternateIcon(drawPlanes);
+            buttonDrawPlanes.setTooltip(drawPlanes ? "Hide area" : "Show area");
+        });
+        buttonDrawPlanes.setTooltip("Show area");
+        radialMirrorIconButtonList.add(buttonDrawPlanes);
+
+        y = top + 76;
+        buttonRadialMirrorAlternate = new GuiCheckBoxFixed(left + 140, y, " Alternate", false);
+        radialMirrorButtonList.add(buttonRadialMirrorAlternate);
+
+        ModifierSettingsManager.ModifierSettings modifierSettings = ModifierSettingsManager.getModifierSettings(mc.player);
+        if (modifierSettings != null) {
+            RadialMirror.RadialMirrorSettings r = modifierSettings.getRadialMirrorSettings();
+            buttonRadialMirrorEnabled.setIsChecked(r.enabled);
+            textRadialMirrorPosX.setNumber(r.position.x);
+            textRadialMirrorPosY.setNumber(r.position.y);
+            textRadialMirrorPosZ.setNumber(r.position.z);
+            textRadialMirrorSlices.setNumber(r.slices);
+            buttonRadialMirrorAlternate.setIsChecked(r.alternate);
+            textRadialMirrorRadius.setNumber(r.radius);
+            drawLines = r.drawLines;
+            drawPlanes = r.drawPlanes;
+            buttonDrawLines.setUseAlternateIcon(drawLines);
+            buttonDrawPlanes.setUseAlternateIcon(drawPlanes);
+            buttonDrawLines.setTooltip(drawLines ? "Hide lines" : "Show lines");
+            buttonDrawPlanes.setTooltip(drawPlanes ? "Hide area" : "Show area");
+            if (textRadialMirrorPosX.getNumber() == Math.floor(textRadialMirrorPosX.getNumber())) {
+                toggleOdd = false;
+                buttonToggleOdd.setTooltip(Arrays.asList("Set radial mirror position to middle of block", "for odd numbered builds"));
+            } else {
+                toggleOdd = true;
+                buttonToggleOdd.setTooltip(Arrays.asList("Set radial mirror position to corner of block", "for even numbered builds"));
+            }
+            buttonToggleOdd.setUseAlternateIcon(toggleOdd);
+        }
+
+        buttonList.addAll(radialMirrorButtonList);
+        buttonList.addAll(radialMirrorIconButtonList);
+
+        setCollapsed(!buttonRadialMirrorEnabled.isChecked());
+    }
+
+    public void updateScreen() {
+        radialMirrorNumberFieldList.forEach(GuiNumberField::update);
+    }
+
+    
+    @Override
+    public void drawEntry(int slotIndex, int x, int y, int listWidth, int slotHeight, int mouseX, int mouseY,
+                          boolean isSelected, float partialTicks) {
+
+        int yy = y;
+        int offset = 8;
+
+        buttonRadialMirrorEnabled.render(mouseX, mouseY, partialTicks);
+        if (buttonRadialMirrorEnabled.isChecked()) {
+            buttonRadialMirrorEnabled.y = yy;
+            font.drawString("Radial mirror enabled", left + offset, yy + 2, 0xFFFFFF);
+
+            yy = y + 18;
+            font.drawString("Position", left + offset, yy + 5, 0xFFFFFF);
+            font.drawString("X", left + 40 + offset, yy + 5, 0xFFFFFF);
+            textRadialMirrorPosX.y = yy;
+            font.drawString("Y", left + 120 + offset, yy + 5, 0xFFFFFF);
+            textRadialMirrorPosY.y = yy;
+            font.drawString("Z", left + 200 + offset, yy + 5, 0xFFFFFF);
+            textRadialMirrorPosZ.y = yy;
+
+            yy = y + 50;
+            font.drawString("Slices", left + offset, yy + 2, 0xFFFFFF);
+            textRadialMirrorSlices.y = yy - 3;
+            font.drawString("Radius", left + 176 + offset, yy + 2, 0xFFFFFF);
+            textRadialMirrorRadius.y = yy - 3;
+
+            yy = y + 72;
+            buttonCurrentPosition.y = yy;
+            buttonToggleOdd.y = yy;
+            buttonDrawLines.y = yy;
+            buttonDrawPlanes.y = yy;
+
+            yy = y + 76;
+            buttonRadialMirrorAlternate.y = yy;
+
+            radialMirrorButtonList.forEach(button -> button.render(mouseX, mouseY, partialTicks));
+            radialMirrorIconButtonList.forEach(button -> button.render(mouseX, mouseY, partialTicks));
+            radialMirrorNumberFieldList
+                    .forEach(numberField -> numberField.drawNumberField(mouseX, mouseY, partialTicks));
+        } else {
+            buttonRadialMirrorEnabled.y = yy;
+            font.drawString("Radial mirror disabled", left + offset, yy + 2, 0x999999);
+        }
+
+    }
+
+    public void drawTooltip(Screen guiScreen, int mouseX, int mouseY) {
+        //Draw tooltips last
+        if (buttonRadialMirrorEnabled.isChecked())
+        {
+            radialMirrorIconButtonList.forEach(iconButton -> iconButton.drawTooltip(scrollPane.parent, mouseX, mouseY));
+            radialMirrorNumberFieldList.forEach(numberField -> numberField.drawTooltip(scrollPane.parent, mouseX, mouseY));
+        }
+    }
+
+    @Override
+    public boolean charTyped(char typedChar, int keyCode) {
+        super.charTyped(typedChar, keyCode);
+        for (GuiNumberField numberField : radialMirrorNumberFieldList) {
+            numberField.charTyped(typedChar, keyCode);
+        }
+        return true;
+    }
+
+    @Override
+    public boolean mousePressed(int slotIndex, int mouseX, int mouseY, int mouseEvent, int relativeX, int relativeY) {
+        radialMirrorNumberFieldList.forEach(numberField -> numberField.mouseClicked(mouseX, mouseY, mouseEvent));
+
+        boolean insideRadialMirrorEnabledLabel = mouseX >= left && mouseX < right && relativeY >= -2 && relativeY < 12;
+
+        if (insideRadialMirrorEnabledLabel) {
+            buttonRadialMirrorEnabled.playDownSound(this.mc.getSoundHandler());
+            buttonRadialMirrorEnabled.onClick(mouseX, mouseY);
+        }
+
+        return true;
+    }
+
+    public RadialMirror.RadialMirrorSettings getRadialMirrorSettings() {
+        boolean radialMirrorEnabled = buttonRadialMirrorEnabled.isChecked();
+
+        Vec3d radialMirrorPos = new Vec3d(0, 64, 0);
+        try {
+            radialMirrorPos = new Vec3d(textRadialMirrorPosX.getNumber(), textRadialMirrorPosY.getNumber(), textRadialMirrorPosZ
+                    .getNumber());
+        } catch (NumberFormatException | NullPointerException ex) {
+            EffortlessBuilding.log(mc.player, "Radial mirror position not a valid number.");
+        }
+
+        int radialMirrorSlices = 4;
+        try {
+            radialMirrorSlices = (int) textRadialMirrorSlices.getNumber();
+        } catch (NumberFormatException | NullPointerException ex) {
+            EffortlessBuilding.log(mc.player, "Radial mirror slices not a valid number.");
+        }
+
+        boolean radialMirrorAlternate = buttonRadialMirrorAlternate.isChecked();
+
+        int radialMirrorRadius = 50;
+        try {
+            radialMirrorRadius = (int) textRadialMirrorRadius.getNumber();
+        } catch (NumberFormatException | NullPointerException ex) {
+            EffortlessBuilding.log(mc.player, "Mirror radius not a valid number.");
+        }
+
+        return new RadialMirror.RadialMirrorSettings(radialMirrorEnabled, radialMirrorPos, radialMirrorSlices, radialMirrorAlternate, radialMirrorRadius, drawLines, drawPlanes);
+    }
+
+    @Override
+    protected String getName() {
+        return "Radial mirror";
+    }
+
+    @Override
+    protected int getExpandedHeight() {
+        return 100;
+    }
+}

src/main/java/nl/requios/effortlessbuilding/gui/elements/GuiCheckBoxFixed.java

@@ -0,0 +1,66 @@
+package nl.requios.effortlessbuilding.gui.elements;
+
+import net.minecraft.client.Minecraft;
+import net.minecraft.client.gui.widget.button.Button;
+import net.minecraftforge.fml.client.config.GuiUtils;
+
+/**
+ * This class provides a checkbox style control.
+ */
+public class GuiCheckBoxFixed extends Button
+{
+    private boolean isChecked;
+    private int     boxWidth;
+
+    public GuiCheckBoxFixed(int xPos, int yPos, String displayString, boolean isChecked)
+    {
+        super(xPos, yPos, Minecraft.getInstance().fontRenderer.getStringWidth(displayString) + 2 + 11, 11, displayString, b -> {});
+        this.isChecked = isChecked;
+        this.boxWidth = 11;
+        this.height = 11;
+        this.width = this.boxWidth + 2 + Minecraft.getInstance().fontRenderer.getStringWidth(displayString);
+    }
+
+    @Override
+    public void renderButton(int mouseX, int mouseY, float partial)
+    {
+        if (this.visible)
+        {
+            Minecraft mc = Minecraft.getInstance();
+            this.isHovered = mouseX >= this.x && mouseY >= this.y && mouseX < this.x + this.boxWidth && mouseY < this.y + this.height;
+            GuiUtils.drawContinuousTexturedBox(WIDGETS_LOCATION, this.x, this.y, 0, 46, this.boxWidth, this.height, 200, 20, 2, 3, 2, 2, this.blitOffset);
+            this.renderBg(mc, mouseX, mouseY);
+            int color = 14737632;
+
+            if (packedFGColor != 0)
+            {
+                color = packedFGColor;
+            }
+            else if (!this.active)
+            {
+                color = 10526880;
+            }
+
+            if (this.isChecked)
+                this.drawCenteredString(mc.fontRenderer, "x", this.x + this.boxWidth / 2 + 1, this.y + 1, 14737632);
+
+            this.drawString(mc.fontRenderer, getMessage(), this.x + this.boxWidth + 2, this.y + 2, color);
+        }
+    }
+
+    @Override
+    public void onPress()
+    {
+        this.isChecked = !this.isChecked;
+    }
+
+    public boolean isChecked()
+    {
+        return this.isChecked;
+    }
+
+    public void setIsChecked(boolean isChecked)
+    {
+        this.isChecked = isChecked;
+    }
+}

src/main/java/nl/requios/effortlessbuilding/gui/elements/GuiCollapsibleScrollEntry.java

@@ -0,0 +1,89 @@
+package nl.requios.effortlessbuilding.gui.elements;
+
+import net.minecraft.client.Minecraft;
+import net.minecraft.client.gui.FontRenderer;
+import net.minecraft.client.gui.widget.Widget;
+import net.minecraft.client.gui.widget.button.Button;
+import net.minecraft.client.gui.screen.Screen;
+import net.minecraftforge.api.distmarker.Dist;
+import net.minecraftforge.api.distmarker.OnlyIn;
+
+import java.util.List;
+
+@OnlyIn(Dist.CLIENT)
+public abstract class GuiCollapsibleScrollEntry implements GuiScrollPane.IScrollEntry {
+
+    public GuiScrollPane scrollPane;
+    protected FontRenderer font;
+    protected Minecraft mc;
+
+    protected boolean isCollapsed = true;
+    protected int left, right, top, bottom;
+
+    public GuiCollapsibleScrollEntry(GuiScrollPane scrollPane) {
+        this.scrollPane = scrollPane;
+        this.font = scrollPane.font;
+        this.mc = Minecraft.getInstance();
+    }
+
+    @Override
+    public void init(List<Widget> buttonList) {
+        left = scrollPane.getWidth() / 2 - 140;
+        right = scrollPane.getWidth() / 2 + 140;
+        top = scrollPane.getHeight() / 2 - 100;
+        bottom = scrollPane.getHeight() / 2 + 100;
+    }
+
+    @Override
+    public void updateScreen() {
+    }
+
+    @Override
+    public void drawTooltip(Screen guiScreen, int mouseX, int mouseY) {
+    }
+
+    @Override
+    public void updatePosition(int slotIndex, int x, int y, float partialTicks) {
+
+    }
+
+    @Override
+    public boolean charTyped(char eventChar, int eventKey) {
+        return false;
+    }
+
+    @Override
+    public boolean mousePressed(int slotIndex, int mouseX, int mouseY, int mouseEvent, int relativeX, int relativeY) {
+        return false;
+    }
+
+    @Override
+    public void mouseReleased(int slotIndex, int x, int y, int mouseEvent, int relativeX, int relativeY) {
+
+    }
+
+    @Override
+    public void onGuiClosed() {
+    }
+
+    @Override
+    public int getHeight() {
+        return isCollapsed ? getCollapsedHeight() : getExpandedHeight();
+    }
+
+    public void setCollapsed(boolean collapsed) {
+        this.isCollapsed = collapsed;
+    }
+
+    protected String getName() {
+        return "Collapsible scroll entry";
+    }
+
+    protected int getCollapsedHeight() {
+        return 24;
+    }
+
+    protected int getExpandedHeight() {
+        return 100;
+    }
+}

src/main/java/nl/requios/effortlessbuilding/gui/elements/GuiIconButton.java

@@ -0,0 +1,79 @@
+package nl.requios.effortlessbuilding.gui.elements;
+
+import net.minecraft.client.Minecraft;
+import net.minecraft.client.gui.widget.button.Button;
+import net.minecraft.client.gui.screen.Screen;
+import net.minecraft.util.ResourceLocation;
+import net.minecraftforge.api.distmarker.Dist;
+import net.minecraftforge.api.distmarker.OnlyIn;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
+@OnlyIn(Dist.CLIENT)
+public class GuiIconButton extends Button {
+
+    private final ResourceLocation resourceLocation;
+    private final int iconX, iconY, iconWidth, iconHeight, iconAltX, iconAltY;
+    List<String> tooltip = new ArrayList<>();
+    private boolean useAltIcon = false;
+
+    public GuiIconButton(int x, int y, int iconX, int iconY, ResourceLocation resourceLocation, Button.IPressable onPress) {
+        this(x, y, 20, 20, iconX, iconY, 20, 20, 20, 0, resourceLocation, onPress);
+    }
+
+    public GuiIconButton(int x, int y, int width, int height, int iconX, int iconY, int iconWidth, int iconHeight, int iconAltX, int iconAltY, ResourceLocation resourceLocation, Button.IPressable onPress) {
+        super(x, y, width, height, "", onPress);
+        this.iconX = iconX;
+        this.iconY = iconY;
+        this.iconWidth = iconWidth;
+        this.iconHeight = iconHeight;
+        this.iconAltX = iconAltX;
+        this.iconAltY = iconAltY;
+        this.resourceLocation = resourceLocation;
+    }
+
+    public void setTooltip(String tooltip) {
+        setTooltip(Arrays.asList(tooltip));
+    }
+
+    public void setTooltip(List<String> tooltip) {
+        this.tooltip = tooltip;
+    }
+
+    public void setUseAlternateIcon(boolean useAlternateIcon) {
+        this.useAltIcon = useAlternateIcon;
+    }
+
+    @Override
+    public void render(int mouseX, int mouseY, float partialTicks) {
+        super.render(mouseX, mouseY, partialTicks);
+        if (this.visible)
+        {
+            this.isHovered = mouseX >= this.x && mouseY >= this.y && mouseX < this.x + this.width && mouseY < this.y + this.height;
+            Minecraft.getInstance().getTextureManager().bindTexture(this.resourceLocation);
+            int currentIconX = this.iconX;
+            int currentIconY = this.iconY;
+
+            if (useAltIcon)
+            {
+                currentIconX += iconAltX;
+                currentIconY += iconAltY;
+            }
+
+            //Draws a textured rectangle at the current z-value. Used to be drawTexturedModalRect in Gui.
+            this.blit(this.x, this.y, currentIconX, currentIconY, this.iconWidth, this.iconHeight);
+        }
+    }
+
+    public void drawTooltip(Screen screen, int mouseX, int mouseY) {
+        boolean flag = mouseX >= x && mouseX < x + width && mouseY >= y && mouseY < y + height;
+
+        if (flag) {
+            List<String> textLines = new ArrayList<>();
+            textLines.addAll(tooltip);
+            screen.renderTooltip(textLines, mouseX - 10, mouseY + 25);
+        }
+    }
+}

src/main/java/nl/requios/effortlessbuilding/gui/elements/GuiNumberField.java

@@ -0,0 +1,159 @@
+package nl.requios.effortlessbuilding.gui.elements;
+
+import net.minecraft.client.gui.*;
+import net.minecraft.client.gui.screen.Screen;
+import net.minecraft.client.gui.widget.TextFieldWidget;
+import net.minecraft.client.gui.widget.Widget;
+import net.minecraft.client.gui.widget.button.Button;
+import net.minecraft.util.text.TextFormatting;
+import net.minecraftforge.api.distmarker.Dist;
+import net.minecraftforge.api.distmarker.OnlyIn;
+
+import java.text.DecimalFormat;
+import java.text.ParseException;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
+@OnlyIn(Dist.CLIENT)
+public class GuiNumberField extends AbstractGui {
+
+    public int x, y, width, height;
+    public int buttonWidth = 10;
+
+    protected TextFieldWidget textField;
+    protected Button minusButton, plusButton;
+
+    List<String> tooltip = new ArrayList<>();
+
+    public GuiNumberField(FontRenderer font, List<Widget> buttonList, int x, int y, int width, int height) {
+        this.x = x;
+        this.y = y;
+        this.width = width;
+        this.height = height;
+
+        textField = new TextFieldWidget(font, x + buttonWidth + 1, y + 1, width - 2 * buttonWidth - 2, height - 2, "");
+        minusButton = new Button(x, y - 1, buttonWidth, height + 2, "-", button -> {
+            float valueChanged = 1f;
+            if (Screen.hasControlDown()) valueChanged = 5f;
+            if (Screen.hasShiftDown()) valueChanged = 10f;
+
+            setNumber(getNumber() - valueChanged);
+        });
+        plusButton  = new Button(x + width - buttonWidth, y - 1, buttonWidth, height + 2, "+", button -> {
+            float valueChanged = 1f;
+            if (Screen.hasControlDown()) valueChanged = 5f;
+            if (Screen.hasShiftDown()) valueChanged = 10f;
+
+            setNumber(getNumber() + valueChanged);
+        });
+
+        buttonList.add(minusButton);
+        buttonList.add(plusButton);
+    }
+
+    public void setNumber(double number) {
+        textField.setText(DecimalFormat.getInstance().format(number));
+    }
+
+    public double getNumber() {
+        if (textField.getText().isEmpty()) return 0;
+        try {
+            return DecimalFormat.getInstance().parse(textField.getText()).doubleValue();
+        } catch (ParseException e) {
+            return 0;
+        }
+    }
+
+    public void setTooltip(String tooltip) {
+        setTooltip(Arrays.asList(tooltip));
+    }
+
+    public void setTooltip(List<String> tooltip) {
+        this.tooltip = tooltip;
+    }
+
+    public boolean mouseClicked(double mouseX, double mouseY, int mouseButton) {
+        boolean result = textField.mouseClicked(mouseX, mouseY, mouseButton);
+
+        //Check if clicked inside textfield
+        boolean flag = mouseX >= x + buttonWidth && mouseX < x + width - buttonWidth && mouseY >= y && mouseY < y + height;
+
+        //Rightclicked inside textfield
+        if (flag && mouseButton == 1) {
+            textField.setText("");
+            textField.setFocused2(true);
+            result = true;
+        }
+
+        return result;
+    }
+
+    public void drawNumberField(int mouseX, int mouseY, float partialTicks) {
+        textField.y = y + 1;
+        minusButton.y = y - 1;
+        plusButton.y = y - 1;
+
+        textField.render(mouseX, mouseY, partialTicks);
+        minusButton.render(mouseX, mouseY, partialTicks);
+        plusButton.render(mouseX, mouseY, partialTicks);
+    }
+
+    public void drawTooltip(Screen screen, int mouseX, int mouseY) {
+        boolean insideTextField = mouseX >= x + buttonWidth && mouseX < x + width - buttonWidth && mouseY >= y && mouseY < y + height;
+        boolean insideMinusButton = mouseX >= x && mouseX < x + buttonWidth && mouseY >= y && mouseY < y + height;
+        boolean insidePlusButton = mouseX >= x + width - buttonWidth && mouseX < x + width && mouseY >= y && mouseY < y + height;
+
+        List<String> textLines = new ArrayList<>();
+
+        if (insideTextField) {
+            if (!tooltip.isEmpty())
+                textLines.addAll(tooltip);
+//            textLines.add(TextFormatting.GRAY + "Tip: try scrolling.");
+        }
+
+        if (insideMinusButton) {
+            textLines.add("Hold " + TextFormatting.AQUA + "shift " + TextFormatting.RESET + "for " + TextFormatting.RED + "10");
+            textLines.add("Hold " + TextFormatting.AQUA + "ctrl " + TextFormatting.RESET + "for " + TextFormatting.RED + "5");
+        }
+
+        if (insidePlusButton) {
+            textLines.add("Hold " + TextFormatting.AQUA + "shift " + TextFormatting.RESET + "for " + TextFormatting.DARK_GREEN + "10");
+            textLines.add("Hold " + TextFormatting.AQUA + "ctrl " + TextFormatting.RESET + "for " + TextFormatting.DARK_GREEN + "5");
+        }
+
+        screen.renderTooltip(textLines, mouseX - 10, mouseY + 25);
+
+    }
+
+    public void update() {
+        textField.tick();
+    }
+
+    public boolean charTyped(char typedChar, int keyCode) {
+        if (!textField.isFocused()) return false;
+//        if (Character.isDigit(typedChar) || typedChar == '.' || typedChar == '-' || keyCode == Keyboard.KEY_BACK
+//            || keyCode == Keyboard.KEY_DELETE || keyCode == Keyboard.KEY_LEFT || keyCode == Keyboard.KEY_RIGHT
+//            || keyCode == Keyboard.KEY_UP || keyCode == Keyboard.KEY_DOWN) {
+            return textField.charTyped(typedChar, keyCode);
+//        }
+    }
+
+    //Scroll inside textfield to change number
+    //Disabled because entire screen can be scrolled
+//    public void handleMouseInput(int mouseX, int mouseY) {
+//        boolean insideTextField = mouseX >= x + buttonWidth && mouseX < x + width - buttonWidth && mouseY >= y && mouseY < y + height;
+//
+//        if (insideTextField)
+//        {
+//            int valueChanged = 0;
+//            if (Mouse.getEventDWheel() > 0)
+//                valueChanged = 1;
+//            if (Mouse.getEventDWheel() < 0)
+//                valueChanged = -1;
+//
+//            if (valueChanged != 0)
+//                setNumber(getNumber() + valueChanged);
+//        }
+//    }
+}

src/main/java/nl/requios/effortlessbuilding/gui/elements/GuiScrollPane.java

@@ -0,0 +1,467 @@
+package nl.requios.effortlessbuilding.gui.elements;
+
+import com.mojang.blaze3d.platform.GlStateManager;
+import net.minecraft.client.Minecraft;
+import net.minecraft.client.gui.*;
+import net.minecraft.client.gui.screen.Screen;
+import net.minecraft.client.gui.widget.Widget;
+import net.minecraft.client.gui.widget.button.Button;
+import net.minecraft.client.renderer.BufferBuilder;
+import net.minecraft.client.renderer.Tessellator;
+import net.minecraft.client.renderer.vertex.DefaultVertexFormats;
+import net.minecraft.util.math.MathHelper;
+import net.minecraftforge.api.distmarker.Dist;
+import net.minecraftforge.api.distmarker.OnlyIn;
+import net.minecraftforge.common.MinecraftForge;
+
+import java.util.ArrayList;
+import java.util.List;
+
+@OnlyIn(Dist.CLIENT)
+public class GuiScrollPane extends SlotGui {
+
+    public Screen parent;
+    public FontRenderer font;
+    private List<IScrollEntry> listEntries;
+    private float scrollMultiplier = 1f;
+
+    private int mouseX;
+    private int mouseY;
+
+    public GuiScrollPane(Screen parent, FontRenderer font, int top, int bottom) {
+        super(Minecraft.getInstance(), parent.width, parent.height, top, bottom, 100);
+        this.parent = parent;
+        this.font = font;
+        this.renderSelection = false;
+        listEntries = new ArrayList<>();
+        MinecraftForge.EVENT_BUS.register(this);
+    }
+
+    public IScrollEntry getListEntry(int index) {
+        return listEntries.get(index);
+    }
+
+    public void AddListEntry(IScrollEntry listEntry){
+        listEntries.add(listEntry);
+    }
+
+    @Override
+    protected int getItemCount() {
+        return listEntries.size();
+    }
+
+    @Override
+    protected boolean isSelectedItem(int slotIndex) {
+        return false;
+    }
+
+    @Override
+    protected int getScrollbarPosition() {
+        //return width / 2 + 140 + 10;
+        return width - 15;
+    }
+
+    @Override
+    public int getRowWidth() {
+        return 280;
+    }
+
+    //Removed background
+    @Override
+    public void render(int mouseXIn, int mouseYIn, float partialTicks)
+    {
+        if (this.visible) {
+            this.mouseX = mouseXIn;
+            this.mouseY = mouseYIn;
+            this.renderBackground();
+            int scrollbarLeft = this.getScrollbarPosition();
+            int scrollbarRight = scrollbarLeft + 6;
+            this.capYPosition();
+            GlStateManager.disableLighting();
+            GlStateManager.disableFog();
+
+            Tessellator tessellator = Tessellator.getInstance();
+            BufferBuilder bufferbuilder = tessellator.getBuffer();
+
+            int insideLeft = this.x0 + this.width / 2 - this.getRowWidth() / 2 + 2;
+            int insideTop = this.y0 + 4 - (int) this.yo;
+            if (this.renderHeader) {
+                this.renderHeader(insideLeft, insideTop, tessellator);
+            }
+
+            //All entries
+            this.renderList(insideLeft, insideTop, mouseXIn, mouseYIn, partialTicks);
+            GlStateManager.disableDepthTest();
+
+            //Dirt overlays on top and bottom
+//            this.renderHoleBackground(0, this.y0, 255, 255);
+//            this.renderHoleBackground(this.y1, this.height, 255, 255);
+
+            GlStateManager.enableBlend();
+            GlStateManager.blendFuncSeparate(GlStateManager.SourceFactor.SRC_ALPHA, GlStateManager.DestFactor.ONE_MINUS_SRC_ALPHA, GlStateManager.SourceFactor.ZERO, GlStateManager.DestFactor.ONE);
+            GlStateManager.disableAlphaTest();
+            GlStateManager.shadeModel(7425);
+            GlStateManager.disableTexture();
+
+            //top
+//            bufferbuilder.begin(7, DefaultVertexFormats.POSITION_TEX_COLOR);
+//            bufferbuilder.pos((double)this.x0, (double)(this.y0 + 4), 0.0D).tex(0.0D, 1.0D).color(0, 0, 0, 0).endVertex();
+//            bufferbuilder.pos((double)this.x1, (double)(this.y0 + 4), 0.0D).tex(1.0D, 1.0D).color(0, 0, 0, 0).endVertex();
+//            bufferbuilder.pos((double)this.x1, (double)this.y0, 0.0D).tex(1.0D, 0.0D).color(0, 0, 0, 255).endVertex();
+//            bufferbuilder.pos((double)this.x0, (double)this.y0, 0.0D).tex(0.0D, 0.0D).color(0, 0, 0, 255).endVertex();
+//            tessellator.draw();
+
+            //bottom
+//            bufferbuilder.begin(7, DefaultVertexFormats.POSITION_TEX_COLOR);
+//            bufferbuilder.pos((double)this.x0, (double)this.y1, 0.0D).tex(0.0D, 1.0D).color(0, 0, 0, 255).endVertex();
+//            bufferbuilder.pos((double)this.x1, (double)this.y1, 0.0D).tex(1.0D, 1.0D).color(0, 0, 0, 255).endVertex();
+//            bufferbuilder.pos((double)this.x1, (double)(this.y1 - 4), 0.0D).tex(1.0D, 0.0D).color(0, 0, 0, 0).endVertex();
+//            bufferbuilder.pos((double)this.x0, (double)(this.y1 - 4), 0.0D).tex(0.0D, 0.0D).color(0, 0, 0, 0).endVertex();
+//            tessellator.draw();
+
+            //Draw scrollbar
+            int maxScroll = this.getMaxScroll();
+            if (maxScroll > 0) {
+                int k1 = (int) ((float) ((this.y1 - this.y0) * (this.y1 - this.y0)) / (float) this.getMaxPosition());
+                k1 = MathHelper.clamp(k1, 32, this.y1 - this.y0 - 8);
+                int l1 = (int) this.yo * (this.y1 - this.y0 - k1) / maxScroll + this.y0;
+                if (l1 < this.y0) {
+                    l1 = this.y0;
+                }
+
+                bufferbuilder.begin(7, DefaultVertexFormats.POSITION_TEX_COLOR);
+                bufferbuilder.pos((double) scrollbarLeft, (double) this.y1, 0.0D).tex(0.0D, 1.0D).color(0, 0, 0, 255).endVertex();
+                bufferbuilder.pos((double) scrollbarRight, (double) this.y1, 0.0D).tex(1.0D, 1.0D).color(0, 0, 0, 255).endVertex();
+                bufferbuilder.pos((double) scrollbarRight, (double) this.y0, 0.0D).tex(1.0D, 0.0D).color(0, 0, 0, 255).endVertex();
+                bufferbuilder.pos((double) scrollbarLeft, (double) this.y0, 0.0D).tex(0.0D, 0.0D).color(0, 0, 0, 255).endVertex();
+                tessellator.draw();
+                bufferbuilder.begin(7, DefaultVertexFormats.POSITION_TEX_COLOR);
+                bufferbuilder.pos((double) scrollbarLeft, (double) (l1 + k1), 0.0D).tex(0.0D, 1.0D).color(128, 128, 128, 255).endVertex();
+                bufferbuilder.pos((double) scrollbarRight, (double) (l1 + k1), 0.0D).tex(1.0D, 1.0D).color(128, 128, 128, 255).endVertex();
+                bufferbuilder.pos((double) scrollbarRight, (double) l1, 0.0D).tex(1.0D, 0.0D).color(128, 128, 128, 255).endVertex();
+                bufferbuilder.pos((double) scrollbarLeft, (double) l1, 0.0D).tex(0.0D, 0.0D).color(128, 128, 128, 255).endVertex();
+                tessellator.draw();
+                bufferbuilder.begin(7, DefaultVertexFormats.POSITION_TEX_COLOR);
+                bufferbuilder.pos((double) scrollbarLeft, (double) (l1 + k1 - 1), 0.0D).tex(0.0D, 1.0D).color(192, 192, 192, 255).endVertex();
+                bufferbuilder.pos((double) (scrollbarRight - 1), (double) (l1 + k1 - 1), 0.0D).tex(1.0D, 1.0D).color(192, 192, 192, 255).endVertex();
+                bufferbuilder.pos((double) (scrollbarRight - 1), (double) l1, 0.0D).tex(1.0D, 0.0D).color(192, 192, 192, 255).endVertex();
+                bufferbuilder.pos((double) scrollbarLeft, (double) l1, 0.0D).tex(0.0D, 0.0D).color(192, 192, 192, 255).endVertex();
+                tessellator.draw();
+            }
+
+            GlStateManager.enableTexture();
+            GlStateManager.shadeModel(7424);
+            GlStateManager.enableAlphaTest();
+            GlStateManager.disableBlend();
+        }
+    }
+
+    //SLOTHEIGHT MODIFICATIONS
+    //SlotHeight is still relied on for determining how much to scroll
+    @Override
+    protected int getMaxPosition() {
+        //Add every entry height
+        int height = this.headerHeight;
+        for (IScrollEntry entry : listEntries) {
+            height += entry.getHeight();
+        }
+        return height;
+    }
+
+    @Override
+    protected void renderBackground() {
+
+    }
+
+    @Override
+    protected void renderItem(int slotIndex, int xPos, int yPos, int heightIn, int mouseXIn, int mouseYIn, float partialTicks) {
+        this.getListEntry(slotIndex).drawEntry(slotIndex, xPos, yPos, this.getRowWidth(), heightIn, mouseXIn, mouseYIn,
+                this.getSlotIndexFromScreenCoords(mouseXIn, mouseYIn) == slotIndex, partialTicks);
+    }
+
+    public int getMaxPosition(int count) {
+        //Add all count entry heights
+        int height = this.headerHeight;
+        for (int i = 0; i < count; i++) {
+            IScrollEntry entry = listEntries.get(i);
+            height += entry.getHeight();
+        }
+        return height;
+    }
+
+    public int getSlotIndexFromScreenCoords(double posX, double posY) {
+        int left = this.x0 + (this.width - this.getRowWidth()) / 2;
+        int right = this.x0 + (this.width + this.getRowWidth()) / 2;
+        double relativeMouseY = getRelativeMouseY(mouseY, 0);
+
+        //Iterate over every entry until relativeMouseY falls within its height
+        for (int i = 0; i < listEntries.size(); i++) {
+            IScrollEntry entry = listEntries.get(i);
+            if (relativeMouseY <= entry.getHeight())
+                return posX < this.getScrollbarPosition() && posX >= left && posX <= right && i >= 0 &&
+                       relativeMouseY >= 0 && i < this.getItemCount() ? i : -1;
+            relativeMouseY -= entry.getHeight();
+        }
+        return -1;
+    }
+
+    @Override
+    public boolean mouseClicked(double mouseX, double mouseY, int button) {
+        int selectedSlot = this.getSlotIndexFromScreenCoords(mouseX, mouseY);
+        double relativeX = getRelativeMouseX(mouseX);
+
+        //Always pass through mouseclicked, to be able to unfocus textfields
+        for (int i = 0; i < this.listEntries.size(); i++) {
+            double relativeY = getRelativeMouseY(mouseY, i);
+            this.getListEntry(i).mousePressed(selectedSlot, (int) mouseX, (int) mouseY, button, (int) relativeX, (int) relativeY);
+        }
+
+
+//        if (this.isMouseYWithinSlotBounds(mouseY))
+//        {
+//            int i = this.getSlotIndexFromScreenCoords(mouseX, mouseY);
+//
+//            if (i >= 0)
+//            {
+//                int relativeX = getRelativeMouseX(mouseX);
+//                int relativeY = getRelativeMouseY(mouseY, i);
+//
+//                if (this.getListEntry(i).mousePressed(i, mouseX, mouseY, mouseEvent, relativeX, relativeY))
+//                {
+//                    this.setEnabled(false);
+//                    return true;
+//                }
+//            }
+//        }
+
+        return false;
+    }
+
+    @Override
+    public boolean mouseReleased(double mouseX, double mouseY, int button) {
+        for (int i = 0; i < this.getItemCount(); ++i)
+        {
+            double relativeX = getRelativeMouseX(mouseX);
+            double relativeY = getRelativeMouseY(mouseY, i);
+            this.getListEntry(i).mouseReleased(i, (int) mouseX, (int) mouseY, button, (int) relativeX, (int) relativeY);
+        }
+
+        this.visible = true;
+        return false;
+    }
+
+    public void handleMouseInput() {
+        if (this.isMouseInList(this.mouseX, this.mouseY)) {
+            if (minecraft.mouseHelper.isLeftDown() && this.mouseY >= this.y0 &&
+                this.mouseY <= this.y1) {
+                int i = this.x0 + (this.width - this.getRowWidth()) / 2;
+                int j = this.x0 + (this.width + this.getRowWidth()) / 2;
+                int slotIndex = getSlotIndexFromScreenCoords(this.mouseX, this.mouseY);
+                double relativeMouseY = getRelativeMouseY(mouseY, slotIndex);
+
+                if (slotIndex > -1) {
+                    this.mouseClicked(this.mouseX, this.mouseY, 0);
+                } else if (this.mouseX >= i && this.mouseX <= j && relativeMouseY < 0) {
+                    this.clickedHeader(this.mouseX - i, this.mouseY - this.y0 + (int) this.yo - 4);
+                }
+            }
+
+            if (minecraft.mouseHelper.isLeftDown() && this.isVisible()) {
+                if (this.yDrag == -1) {
+                    boolean flag1 = true;
+
+                    if (this.mouseY >= this.y0 && this.mouseY <= this.y1) {
+                        int i2 = this.x0 + (this.width - this.getRowWidth()) / 2;
+                        int j2 = this.x0 + (this.width + this.getRowWidth()) / 2;
+                        int slotIndex = getSlotIndexFromScreenCoords(this.mouseX, this.mouseY);
+                        double relativeMouseY = getRelativeMouseY(mouseY, slotIndex);
+
+                        if (slotIndex > -1) {
+                            this.mouseClicked(slotIndex, this.mouseX, this.mouseY);
+                        } else if (this.mouseX >= i2 && this.mouseX <= j2 && relativeMouseY < 0) {
+                            this.clickedHeader(this.mouseX - i2,
+                                    this.mouseY - this.y0 + (int) this.yo - 4);
+                            flag1 = false;
+                        }
+
+                        int i3 = this.getScrollbarPosition();
+                        int j1 = i3 + 6;
+
+                        if (this.mouseX >= i3 && this.mouseX <= j1) {
+                            this.scrollMultiplier = -1.0F;
+                            int maxScroll = this.getMaxScroll();
+
+                            if (maxScroll < 1) {
+                                maxScroll = 1;
+                            }
+
+                            int l1 = (int) ((float) ((this.y1 - this.y0) * (this.y1 - this.y0)) /
+                                            (float) this.getMaxPosition());
+                            l1 = MathHelper.clamp(l1, 32, this.y1 - this.y0 - 8);
+                            this.scrollMultiplier /= (float) (this.y1 - this.y0 - l1) / (float) maxScroll;
+                        } else {
+                            this.scrollMultiplier = 1.0F;
+                        }
+
+                        if (flag1) {
+                            this.yDrag = this.mouseY;
+                        } else {
+                            this.yDrag = -2;
+                        }
+                    } else {
+                        this.yDrag = -2;
+                    }
+                } else if (this.yDrag >= 0) {
+                    this.yo -= (float) (this.mouseY - this.yDrag) * this.scrollMultiplier;
+                    this.yDrag = this.mouseY;
+                }
+            } else {
+                this.yDrag = -1;
+            }
+
+        }
+    }
+
+    //Draw in center if it fits
+    @Override
+    protected void renderList(int insideLeft, int insideTop, int mouseXIn, int mouseYIn, float partialTicks)
+    {
+        int itemCount = this.getItemCount();
+        Tessellator tessellator = Tessellator.getInstance();
+        BufferBuilder bufferbuilder = tessellator.getBuffer();
+
+        //Find y to start with
+        int y = this.headerHeight + insideTop;
+        int contentHeight = getMaxPosition();
+        int insideHeight = this.y1 - this.y0 - 4;
+
+        if (contentHeight < insideHeight) {
+            //it fits, so we can center it vertically
+            y += (insideHeight - contentHeight) / 2;
+        }
+
+        //Draw all entries
+        for (int i = 0; i < itemCount; ++i)
+        {
+            int entryHeight = listEntries.get(i).getHeight();
+            int entryHeight2 = entryHeight - 4;
+
+            if (y > this.y1 || y + entryHeight2 < this.y0)
+            {
+                this.updateItemPosition(i, insideLeft, y, partialTicks);
+            }
+
+            if (this.renderSelection && this.isSelectedItem(i)) {
+                int i1 = this.x0 + this.width / 2 - this.getRowWidth() / 2;
+                int j1 = this.x0 + this.width / 2 + this.getRowWidth() / 2;
+                GlStateManager.disableTexture();
+                float f = this.isFocused() ? 1.0F : 0.5F;
+                GlStateManager.color4f(f, f, f, 1.0F);
+                bufferbuilder.begin(7, DefaultVertexFormats.POSITION);
+                bufferbuilder.pos((double)i1, (double)(y + entryHeight2 + 2), 0.0D).endVertex();
+                bufferbuilder.pos((double)j1, (double)(y + entryHeight2 + 2), 0.0D).endVertex();
+                bufferbuilder.pos((double)j1, (double)(y - 2), 0.0D).endVertex();
+                bufferbuilder.pos((double)i1, (double)(y - 2), 0.0D).endVertex();
+                tessellator.draw();
+                GlStateManager.color4f(0.0F, 0.0F, 0.0F, 1.0F);
+                bufferbuilder.begin(7, DefaultVertexFormats.POSITION);
+                bufferbuilder.pos((double)(i1 + 1), (double)(y + entryHeight2 + 1), 0.0D).endVertex();
+                bufferbuilder.pos((double)(j1 - 1), (double)(y + entryHeight2 + 1), 0.0D).endVertex();
+                bufferbuilder.pos((double)(j1 - 1), (double)(y - 1), 0.0D).endVertex();
+                bufferbuilder.pos((double)(i1 + 1), (double)(y - 1), 0.0D).endVertex();
+                tessellator.draw();
+                GlStateManager.enableTexture();
+            }
+
+            this.renderItem(i, insideLeft, y, entryHeight2, mouseXIn, mouseYIn, partialTicks);
+            y += entryHeight;
+        }
+    }
+
+    private double getRelativeMouseX(double mouseX) {
+        int j = this.x0 + this.width / 2 - this.getRowWidth() / 2 + 2;
+        return mouseX - j;
+    }
+
+    private double getRelativeMouseY(double mouseY, int contentIndex) {
+        int k = this.y0 + 4 - this.getScroll() + getMaxPosition(contentIndex) + this.headerHeight;
+        double relativeMouseY = mouseY - k;
+
+        //Content might be centered, adjust relative mouse y accordingly
+        int contentHeight = getMaxPosition();
+        int insideHeight = this.y1 - this.y0 - 4;
+
+        if (contentHeight < insideHeight) {
+            //it fits, so we can center it vertically
+            relativeMouseY -= (insideHeight - contentHeight) / 2f;
+        }
+        return relativeMouseY;
+    }
+
+    //PASSTHROUGHS
+    public void init(List<Widget> buttonList) {
+        for (IScrollEntry entry : this.listEntries) {
+            entry.init(buttonList);
+        }
+    }
+
+    public void updateScreen() {
+        for (IScrollEntry entry : this.listEntries)
+            entry.updateScreen();
+    }
+
+    public void drawTooltip(Screen guiScreen, int mouseX, int mouseY) {
+        for (IScrollEntry entry : this.listEntries)
+            entry.drawTooltip(guiScreen, mouseX, mouseY);
+    }
+
+    @Override
+    public boolean charTyped(char eventChar, int eventKey) {
+        for (IScrollEntry entry : this.listEntries)
+            entry.charTyped(eventChar, eventKey);
+        return false;
+    }
+
+    public void onGuiClosed() {
+        for (IScrollEntry entry : this.listEntries)
+            entry.onGuiClosed();
+    }
+
+    //Make protected values available
+    public int getWidth() {
+        return width;
+    }
+
+    public int getHeight() {
+        return height;
+    }
+
+    public interface IScrollEntry {
+        void init(List<Widget> buttonList);
+
+        void updateScreen();
+
+        void drawTooltip(Screen guiScreen, int mouseX, int mouseY);
+
+        boolean charTyped(char eventChar, int eventKey);
+
+        void onGuiClosed();
+
+        int getHeight();
+
+        void updatePosition(int slotIndex, int x, int y, float partialTicks);
+
+        void drawEntry(int slotIndex, int x, int y, int listWidth, int slotHeight, int mouseX, int mouseY, boolean isSelected, float partialTicks);
+
+        /**
+         * Called when the mouse is clicked within this entry. Returning true means that something within this entry was
+         * clicked and the list should not be dragged.
+         */
+        boolean mousePressed(int slotIndex, int mouseX, int mouseY, int mouseEvent, int relativeX, int relativeY);
+
+        /**
+         * Fired when the mouse button is released. Arguments: index, x, y, mouseEvent, relativeX, relativeY
+         */
+        void mouseReleased(int slotIndex, int x, int y, int mouseEvent, int relativeX, int relativeY);
+    }
+}

src/main/java/nl/requios/effortlessbuilding/helper/FixedStack.java

@@ -0,0 +1,54 @@
+package nl.requios.effortlessbuilding.helper;
+
+import nl.requios.effortlessbuilding.EffortlessBuilding;
+
+//Stack with fixed size. Removes (overwrites) oldest element on push.
+public class FixedStack<T> {
+    private T[] stack;
+    private int size;
+    private int top;
+    private int filled = 0; //how many valid items are in the stack
+
+    public FixedStack(T[] stack) {
+        this.stack = stack;
+        this.top = 0;
+        this.size = stack.length;
+    }
+
+    public void push(T object) {
+        if (top == stack.length)
+            top = 0;
+
+        stack[top] = object;
+        top++;
+
+        if (filled < size)
+            filled++;
+    }
+
+    public T pop() {
+        if (filled <= 0) return null;
+
+        if (top - 1 < 0)
+            top = size;
+
+        top--;
+        T object = stack[top];
+        filled--;
+
+        return object;
+    }
+
+    public void clear() {
+        top = 0;
+        filled = 0;
+    }
+
+    public int size() {
+        return size;
+    }
+
+    public boolean isEmpty() {
+        return filled <= 0;
+    }
+}

src/main/java/nl/requios/effortlessbuilding/helper/InventoryHelper.java

@@ -0,0 +1,30 @@
+package nl.requios.effortlessbuilding.helper;
+
+import net.minecraft.block.Block;
+import net.minecraft.entity.player.PlayerEntity;
+import net.minecraft.item.BlockItem;
+import net.minecraft.item.ItemStack;
+
+public class InventoryHelper {
+
+    public static ItemStack findItemStackInInventory(PlayerEntity player, Block block) {
+        for (ItemStack invStack : player.inventory.mainInventory) {
+            if (!invStack.isEmpty() && invStack.getItem() instanceof BlockItem &&
+                ((BlockItem) invStack.getItem()).getBlock().equals(block)) {
+                return invStack;
+            }
+        }
+        return ItemStack.EMPTY;
+    }
+
+    public static int findTotalBlocksInInventory(PlayerEntity player, Block block) {
+        int total = 0;
+        for (ItemStack invStack : player.inventory.mainInventory) {
+            if (!invStack.isEmpty() && invStack.getItem() instanceof BlockItem &&
+                ((BlockItem) invStack.getItem()).getBlock().equals(block)) {
+                total += invStack.getCount();
+            }
+        }
+        return total;
+    }
+}

src/main/java/nl/requios/effortlessbuilding/helper/ReachHelper.java

@@ -0,0 +1,50 @@
+package nl.requios.effortlessbuilding.helper;
+
+import net.minecraft.entity.player.PlayerEntity;
+import net.minecraft.util.math.MathHelper;
+import nl.requios.effortlessbuilding.BuildConfig;
+import nl.requios.effortlessbuilding.buildmodifier.ModifierSettingsManager;
+
+public class ReachHelper {
+    public static int getMaxReach(PlayerEntity player) {
+        if (player.isCreative()) return BuildConfig.reach.maxReachCreative.get();
+
+        if (!BuildConfig.reach.enableReachUpgrades.get()) return BuildConfig.reach.maxReachLevel3.get();
+
+        //Check buildsettings for reachUpgrade
+        int reachUpgrade = ModifierSettingsManager.getModifierSettings(player).getReachUpgrade();
+        switch (reachUpgrade) {
+            case 0: return BuildConfig.reach.maxReachLevel0.get();
+            case 1: return BuildConfig.reach.maxReachLevel1.get();
+            case 2: return BuildConfig.reach.maxReachLevel2.get();
+            case 3: return BuildConfig.reach.maxReachLevel3.get();
+        }
+        return BuildConfig.reach.maxReachLevel0.get();
+    }
+
+    public static int getPlacementReach(PlayerEntity player) {
+        return getMaxReach(player) / 4;
+    }
+
+    public static int getMaxBlocksPlacedAtOnce(PlayerEntity player) {
+        if (player.isCreative()) return 1000000;
+        return MathHelper.ceil(Math.pow(getMaxReach(player), 1.6));
+        //Level 0: 121
+        //Level 1: 523
+        //Level 2: 1585
+        //Level 3: 4805
+    }
+
+    public static int getMaxBlocksPerAxis(PlayerEntity player) {
+        if (player.isCreative()) return 2000;
+        return MathHelper.ceil(getMaxReach(player) * 0.3);
+        //Level 0: 6
+        //Level 1: 15
+        //Level 2: 30
+        //Level 3: 60
+    }
+
+    public static boolean canBreakFar(PlayerEntity player) {
+        return player.isCreative() || BuildConfig.survivalBalancers.breakFar.get();
+    }
+}

src/main/java/nl/requios/effortlessbuilding/helper/SurvivalHelper.java

@@ -0,0 +1,345 @@
+package nl.requios.effortlessbuilding.helper;
+
+import net.minecraft.advancements.CriteriaTriggers;
+import net.minecraft.block.*;
+import net.minecraft.block.SlabBlock;
+import net.minecraft.block.material.Material;
+import net.minecraft.entity.player.PlayerEntity;
+import net.minecraft.entity.player.ServerPlayerEntity;
+import net.minecraft.item.BlockItem;
+import net.minecraft.util.*;
+import net.minecraft.block.BlockState;
+import net.minecraft.entity.Entity;
+import net.minecraft.block.Blocks;
+import net.minecraft.item.ItemStack;
+import net.minecraft.util.CachedBlockInfo;
+import net.minecraft.util.Direction;
+import net.minecraft.util.Hand;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.math.Vec3d;
+import net.minecraft.util.math.shapes.VoxelShape;
+import net.minecraft.world.World;
+import net.minecraftforge.common.ToolType;
+import nl.requios.effortlessbuilding.BuildConfig;
+import nl.requios.effortlessbuilding.buildmodifier.ModifierSettingsManager;
+import nl.requios.effortlessbuilding.compatibility.CompatHelper;
+
+import javax.annotation.Nonnull;
+import javax.annotation.Nullable;
+
+public class SurvivalHelper {
+
+    //Used for all placing of blocks in this mod.
+    //Checks if area is loaded, if player has the right permissions, if existing block can be replaced (drops it if so) and consumes an item from the stack.
+    //Based on ItemBlock#onItemUse
+    public static boolean placeBlock(World world, PlayerEntity player, BlockPos pos, BlockState blockState,
+                                     ItemStack origstack, Direction facing, Vec3d hitVec, boolean skipPlaceCheck,
+                                     boolean skipCollisionCheck, boolean playSound) {
+        if (!world.isBlockPresent(pos)) return false;
+        ItemStack itemstack = origstack;
+
+        if (blockState.getBlock().isAir(blockState, world, pos) || itemstack.isEmpty()) {
+            dropBlock(world, player, pos);
+            world.removeBlock(pos, false);
+            return true;
+        }
+
+        //Randomizer bag, other proxy item synergy
+        //Preliminary compatibility code for other items that hold blocks
+        if (CompatHelper.isItemBlockProxy(itemstack))
+            itemstack = CompatHelper.getItemBlockByState(itemstack, blockState);
+
+        if (!(itemstack.getItem() instanceof BlockItem))
+            return false;
+        Block block = ((BlockItem) itemstack.getItem()).getBlock();
+
+
+        //More manual with ItemBlock#placeBlockAt
+        if (skipPlaceCheck || canPlace(world, player, pos, blockState, itemstack, skipCollisionCheck, facing.getOpposite())) {
+            //Drop existing block
+            dropBlock(world, player, pos);
+
+            //TryPlace sets block with offset and reduces itemstack count in creative, so we copy only parts of it
+//            BlockItemUseContext blockItemUseContext = new BlockItemUseContext(world, player, itemstack, pos, facing, (float) hitVec.x, (float) hitVec.y, (float) hitVec.z);
+//            EnumActionResult result = ((ItemBlock) itemstack.getItem()).tryPlace(blockItemUseContext);
+            if (!world.setBlockState(pos, blockState, 3)) return false;
+            BlockItem.setTileEntityNBT(world, player, pos, itemstack); //Actually BlockItem::onBlockPlaced but that is protected
+            block.onBlockPlacedBy(world, pos, blockState, player, itemstack);
+            if (player instanceof ServerPlayerEntity) {
+                CriteriaTriggers.PLACED_BLOCK.trigger((ServerPlayerEntity)player, pos, itemstack);
+            }
+
+            BlockState afterState = world.getBlockState(pos);
+
+            if (playSound) {
+                SoundType soundtype = afterState.getBlock().getSoundType(afterState, world, pos, player);
+                world.playSound(null, pos, soundtype.getPlaceSound(), SoundCategory.BLOCKS, (soundtype.getVolume() + 1.0F) / 2.0F, soundtype.getPitch() * 0.8F);
+            }
+
+            if (!player.isCreative() && Block.getBlockFromItem(itemstack.getItem()) == block) {
+                CompatHelper.shrinkStack(origstack, itemstack, player);
+            }
+
+            return true;
+        }
+        return false;
+
+        //Using ItemBlock#onItemUse
+//        EnumActionResult result;
+//        PlayerInteractEvent.RightClickBlock event = ForgeHooks.onRightClickBlock(player, EnumHand.MAIN_HAND, pos, facing, net.minecraftforge.common.ForgeHooks.rayTraceEyeHitVec(player, ReachHelper.getPlacementReach(player)));
+//        if (player.isCreative())
+//        {
+//            int i = itemstack.getMetadata();
+//            int j = itemstack.getCount();
+//            if (event.getUseItem() != net.minecraftforge.fml.common.eventhandler.Event.Result.DENY) {
+//                EnumActionResult enumactionresult = itemstack.getItem().onItemUse(player, world, pos, EnumHand.MAIN_HAND, facing, (float) hitVec.x, (float) hitVec.y, (float) hitVec.z);
+//                itemstack.setItemDamage(i);
+//                itemstack.setCount(j);
+//                return enumactionresult == EnumActionResult.SUCCESS;
+//            } else return false;
+//        }
+//        else
+//        {
+//            ItemStack copyForUse = itemstack.copy();
+//            if (event.getUseItem() != net.minecraftforge.fml.common.eventhandler.Event.Result.DENY)
+//                result = itemstack.getItem().onItemUse(player, world, pos, EnumHand.MAIN_HAND, facing, (float) hitVec.x, (float) hitVec.y, (float) hitVec.z);
+//            if (itemstack.isEmpty()) net.minecraftforge.event.ForgeEventFactory.onPlayerDestroyItem(player, copyForUse, EnumHand.MAIN_HAND);
+//            return false;
+//        }
+
+    }
+
+    //Used for all breaking of blocks in this mod.
+    //Checks if area is loaded, if appropriate tool is used in survival mode, and drops the block directly into the players inventory
+    public static boolean breakBlock(World world, PlayerEntity player, BlockPos pos, boolean skipChecks) {
+        if (!world.isBlockPresent(pos) && !world.isAirBlock(pos)) return false;
+
+        //Check if can break
+        if (skipChecks || canBreak(world, player, pos)) {
+//            player.addStat(StatList.getBlockStats(world.getNewBlockState(pos).getBlock()));
+//            player.addExhaustion(0.005F);
+
+            //Drop existing block
+            dropBlock(world, player, pos);
+
+            //Damage tool
+            player.getHeldItemMainhand().onBlockDestroyed(world, world.getBlockState(pos), pos, player);
+
+            world.removeBlock(pos, false);
+            return true;
+        }
+        return false;
+    }
+
+    //Gives items directly to player
+    public static void dropBlock(World world, PlayerEntity player, BlockPos pos){
+        if (player.isCreative()) return;
+
+        BlockState blockState = world.getBlockState(pos);
+        Block block = blockState.getBlock();
+
+        block.harvestBlock(world, player, pos, blockState, world.getTileEntity(pos), player.getHeldItemMainhand());
+
+        //TODO drop items in inventory instead of world
+
+//        List<ItemStack> drops = new ArrayList<>();
+//
+//        //From Block#harvestBlock
+//        int silktouch = EnchantmentHelper.getEnchantmentLevel(Enchantments.SILK_TOUCH, player.getHeldItemMainhand());
+//        if (block.canSilkHarvest(world, pos, blockState, player) && silktouch > 0) {
+//
+//            //From Block#getSilkTouchDrop (protected)
+//            Item item = Item.getItemFromBlock(block);
+//            int i = 0;
+//
+//            if (item.getHasSubtypes())
+//            {
+//                i = block.getMetaFromState(blockState);
+//            }
+//
+//            drops.add(new ItemStack(item, 1, i));
+//
+//            net.minecraftforge.event.ForgeEventFactory.fireBlockHarvesting(drops, world, pos, blockState, 0, 1.0f, true, player);
+//        }
+//
+//        int fortune = EnchantmentHelper.getEnchantmentLevel(Enchantments.FORTUNE, player.getHeldItemMainhand());
+//        drops.addAll(block.getDrops(world, pos, blockState, fortune));
+//        for (ItemStack drop : drops)
+//        {
+//            ItemHandlerHelper.giveItemToPlayer(player, drop);
+//        }
+    }
+
+    /**
+     * Check if player can place a block.
+     * Turn randomizer bag into itemstack inside before.
+     * @param world
+     * @param player
+     * @param pos
+     * @param newBlockState the blockstate that is going to be placed
+     * @param itemStack the itemstack used for placing
+     * @param skipCollisionCheck skips collision check with entities
+     * @param sidePlacedOn
+     * @return Whether the player may place the block at pos with itemstack
+     */
+    public static boolean canPlace(World world, PlayerEntity player, BlockPos pos, BlockState newBlockState, ItemStack itemStack, boolean skipCollisionCheck, Direction sidePlacedOn) {
+
+        //Check if itemstack is correct
+        if (!(itemStack.getItem() instanceof BlockItem) || Block.getBlockFromItem(itemStack.getItem()) != newBlockState.getBlock()) {
+//            EffortlessBuilding.log(player, "Cannot (re)place block", true);
+//            EffortlessBuilding.log("SurvivalHelper#canPlace: itemstack " + itemStack.toString() + " does not match blockstate " + newBlockState.toString());
+            //Happens when breaking blocks, no need to notify in that case
+            return false;
+        }
+
+        Block block = ((BlockItem) itemStack.getItem()).getBlock();
+
+        return !itemStack.isEmpty() && canPlayerEdit(player, world, pos, itemStack) &&
+               mayPlace(world, block, newBlockState, pos, skipCollisionCheck, sidePlacedOn, player) &&
+               canReplace(world, player, pos);
+    }
+
+    //Can be harvested with hand? (or in creative)
+    private static boolean canReplace(World world, PlayerEntity player, BlockPos pos){
+        if (player.isCreative()) return true;
+
+        BlockState state = world.getBlockState(pos);
+
+        switch (BuildConfig.survivalBalancers.quickReplaceMiningLevel.get()) {
+            case -1: return state.getMaterial().isToolNotRequired();
+            case 0: return state.getBlock().getHarvestLevel(state) <= 0;
+            case 1: return state.getBlock().getHarvestLevel(state) <= 1;
+            case 2: return state.getBlock().getHarvestLevel(state) <= 2;
+            case 3: return state.getBlock().getHarvestLevel(state) <= 3;
+        }
+
+        return false;
+    }
+
+    //From EntityPlayer#canPlayerEdit
+    private static boolean canPlayerEdit(PlayerEntity player, World world, BlockPos pos, ItemStack stack)
+    {
+        if (!world.isBlockModifiable(player, pos)) return false;
+
+        if (player.abilities.allowEdit)
+        {
+            //True in creative and survival mode
+            return true;
+        }
+        else
+        {
+            //Adventure mode
+            CachedBlockInfo blockworldstate = new CachedBlockInfo(world, pos, false);
+            return stack.canPlaceOn(world.getTags(), blockworldstate);
+
+        }
+    }
+
+    //From World#mayPlace
+    private static boolean mayPlace(World world, Block blockIn, BlockState newBlockState, BlockPos pos, boolean skipCollisionCheck, Direction sidePlacedOn, @Nullable Entity placer)
+    {
+        BlockState iblockstate1 = world.getBlockState(pos);
+        VoxelShape voxelShape = skipCollisionCheck ? null : blockIn.getDefaultState().getCollisionShape(world, pos);
+
+        if (voxelShape != null && !world.checkNoEntityCollision(placer, voxelShape))
+        {
+            return false;
+        }
+
+        //Check if double slab
+        if (placer != null && doesBecomeDoubleSlab(((PlayerEntity) placer), pos, sidePlacedOn)) {
+            return true;
+        }
+
+        //Check if same block
+        //Necessary otherwise extra items will be dropped
+        if (iblockstate1 == newBlockState) {
+            return false;
+        }
+
+        //TODO 1.14 check what Material.CIRCUITS has become
+        if (iblockstate1.getMaterial() == Material.REDSTONE_LIGHT && blockIn == Blocks.ANVIL)
+        {
+            return true;
+        }
+
+        //Check quickreplace
+        if (placer instanceof PlayerEntity && ModifierSettingsManager.getModifierSettings(((PlayerEntity) placer)).doQuickReplace()) {
+            return true;
+        }
+
+        //TODO 1.13 replaceable
+        return iblockstate1.getMaterial().isReplaceable() /*&& canPlaceBlockOnSide(world, pos, sidePlacedOn)*/;
+    }
+
+
+
+    //Can break using held tool? (or in creative)
+    public static boolean canBreak(World world, PlayerEntity player, BlockPos pos) {
+        BlockState blockState = world.getBlockState(pos);
+        if (!world.getFluidState(pos).isEmpty()) return false;
+
+        if (player.isCreative()) return true;
+
+        return canHarvestBlock(blockState.getBlock(), player, world, pos);
+    }
+
+    //From ForgeHooks#canHarvestBlock
+    public static boolean canHarvestBlock(@Nonnull Block block, @Nonnull PlayerEntity player, @Nonnull World world, @Nonnull BlockPos pos)
+    {
+        BlockState state = world.getBlockState(pos);
+
+        //Dont break bedrock
+        if (state.getBlockHardness(world, pos) < 0) {
+            return false;
+        }
+
+        if (state.getMaterial().isToolNotRequired())
+        {
+            return true;
+        }
+
+        ItemStack stack = player.getHeldItemMainhand();
+        ToolType tool = block.getHarvestTool(state);
+        if (stack.isEmpty() || tool == null)
+        {
+            return player.canHarvestBlock(state);
+        }
+
+        if (stack.getDamage() >= stack.getMaxDamage()) return false;
+
+        int toolLevel = stack.getItem().getHarvestLevel(stack, tool, player, state);
+        if (toolLevel < 0)
+        {
+            return player.canHarvestBlock(state);
+        }
+
+        return toolLevel >= block.getHarvestLevel(state);
+    }
+
+    public static boolean doesBecomeDoubleSlab(PlayerEntity player, BlockPos pos, Direction facing) {
+        BlockState placedBlockState = player.world.getBlockState(pos);
+
+        ItemStack itemstack = player.getHeldItem(Hand.MAIN_HAND);
+        if (CompatHelper.isItemBlockProxy(itemstack))
+            itemstack = CompatHelper.getItemBlockFromStack(itemstack);
+
+        if (itemstack.isEmpty() || !(itemstack.getItem() instanceof BlockItem) || !(((BlockItem) itemstack.getItem()).getBlock() instanceof SlabBlock)) return false;
+        SlabBlock heldSlab = (SlabBlock) ((BlockItem) itemstack.getItem()).getBlock();
+
+        if (placedBlockState.getBlock() == heldSlab) {
+            //TODO 1.13
+//            IProperty<?> variantProperty = heldSlab.getVariantProperty();
+//            Comparable<?> placedVariant = placedBlockState.getValue(variantProperty);
+//            BlockSlab.EnumBlockHalf placedHalf = placedBlockState.getValue(BlockSlab.HALF);
+//
+//            Comparable<?> heldVariant = heldSlab.getTypeForItem(itemstack);
+//
+//            if ((facing == EnumFacing.UP && placedHalf == BlockSlab.EnumBlockHalf.BOTTOM || facing == EnumFacing.DOWN && placedHalf == BlockSlab.EnumBlockHalf.TOP) && placedVariant == heldVariant)
+//            {
+//                return true;
+//            }
+        }
+        return false;
+    }
+}

src/main/java/nl/requios/effortlessbuilding/item/ItemRandomizerBag.java

@@ -1,117 +1,137 @@
 package nl.requios.effortlessbuilding.item;
 
 import net.minecraft.block.Block;
-import net.minecraft.block.state.IBlockState;
+import net.minecraft.block.BlockState;
 import net.minecraft.client.util.ITooltipFlag;
-import net.minecraft.creativetab.CreativeTabs;
-import net.minecraft.entity.player.EntityPlayer;
-import net.minecraft.item.Item;
-import net.minecraft.item.ItemStack;
-import net.minecraft.nbt.NBTTagCompound;
-import net.minecraft.util.ActionResult;
-import net.minecraft.util.EnumActionResult;
-import net.minecraft.util.EnumFacing;
-import net.minecraft.util.EnumHand;
+import net.minecraft.entity.player.PlayerEntity;
+import net.minecraft.entity.player.PlayerInventory;
+import net.minecraft.entity.player.ServerPlayerEntity;
+import net.minecraft.inventory.container.Container;
+import net.minecraft.inventory.container.INamedContainerProvider;
+import net.minecraft.item.*;
+import net.minecraft.nbt.CompoundNBT;
+import net.minecraft.util.*;
+import net.minecraft.util.ActionResultType;
+import net.minecraft.util.Hand;
 import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.math.BlockRayTraceResult;
+import net.minecraft.util.math.Vec3d;
+import net.minecraft.util.text.ITextComponent;
+import net.minecraft.util.text.StringTextComponent;
 import net.minecraft.util.text.TextFormatting;
+import net.minecraft.util.text.TranslationTextComponent;
 import net.minecraft.world.World;
 import net.minecraftforge.common.capabilities.ICapabilityProvider;
-import net.minecraftforge.common.util.BlockSnapshot;
-import net.minecraftforge.event.world.BlockEvent;
+import net.minecraftforge.fml.network.NetworkHooks;
 import net.minecraftforge.items.CapabilityItemHandler;
 import net.minecraftforge.items.IItemHandler;
-import nl.requios.effortlessbuilding.Array;
 import nl.requios.effortlessbuilding.EffortlessBuilding;
-import nl.requios.effortlessbuilding.Mirror;
+import nl.requios.effortlessbuilding.buildmode.BuildModes;
+import nl.requios.effortlessbuilding.buildmode.ModeSettingsManager;
+import nl.requios.effortlessbuilding.buildmodifier.ModifierSettingsManager;
 import nl.requios.effortlessbuilding.capability.ItemHandlerCapabilityProvider;
+import nl.requios.effortlessbuilding.gui.RandomizerBagContainer;
+import nl.requios.effortlessbuilding.helper.SurvivalHelper;
 
 import javax.annotation.Nullable;
 import java.util.ArrayList;
+import java.util.Calendar;
 import java.util.List;
 import java.util.Random;
 
 public class ItemRandomizerBag extends Item {
     public static final int INV_SIZE = 5;
 
-    private static Random rand = new Random(1337);
+    private static long currentSeed = 1337;
+    private static Random rand = new Random(currentSeed);
 
     public ItemRandomizerBag() {
-        this.setRegistryName(EffortlessBuilding.MODID, "randomizer_bag");
-        this.setUnlocalizedName(this.getRegistryName().toString());
+        super(new Item.Properties().group(ItemGroup.TOOLS).maxStackSize(1));
 
-        this.maxStackSize = 1;
-        this.setCreativeTab(CreativeTabs.DECORATIONS);
+        this.setRegistryName(EffortlessBuilding.MODID, "randomizer_bag");
     }
 
     @Override
-    public EnumActionResult onItemUse(EntityPlayer player, World world, BlockPos pos, EnumHand hand, EnumFacing facing, float hitX, float hitY, float hitZ) {
+    public ActionResultType onItemUse(ItemUseContext ctx) {
+        PlayerEntity player = ctx.getPlayer();
+        World world = ctx.getWorld();
+        BlockPos pos = ctx.getPos();
+        Direction facing = ctx.getFace();
+        ItemStack item = ctx.getItem();
+        Vec3d hitVec = ctx.getHitVec();
 
-        if (player.isSneaking()) {
-            if (world.isRemote) return EnumActionResult.SUCCESS;
+        if (player == null) return ActionResultType.FAIL;
+
+        if (ctx.isPlacerSneaking()) {
+            if (world.isRemote) return ActionResultType.SUCCESS;
             //Open inventory
-            player.openGui(EffortlessBuilding.instance, EffortlessBuilding.RANDOMIZER_BAG_GUI, world, 0, 0, 0);
+            NetworkHooks.openGui((ServerPlayerEntity) player, new ContainerProvider(item));
         } else {
-            if (world.isRemote) return EnumActionResult.SUCCESS;
+            if (world.isRemote) return ActionResultType.SUCCESS;
+
+            //Only place manually if in normal vanilla mode
+            BuildModes.BuildModeEnum buildMode = ModeSettingsManager.getModeSettings(player).getBuildMode();
+            ModifierSettingsManager.ModifierSettings modifierSettings = ModifierSettingsManager.getModifierSettings(player);
+            if (buildMode != BuildModes.BuildModeEnum.NORMAL || modifierSettings.doQuickReplace()) {
+                return ActionResultType.FAIL;
+            }
+
             //Use item
             //Get bag inventory
-            ItemStack bag = player.getHeldItem(hand);
+            //TODO offhand support
+            ItemStack bag = player.getHeldItem(Hand.MAIN_HAND);
             IItemHandler bagInventory = getBagInventory(bag);
             if (bagInventory == null)
-                return EnumActionResult.FAIL;
+                return ActionResultType.FAIL;
 
-            int randomSlot = pickRandomSlot(bagInventory);
-            if (randomSlot < 0 || randomSlot > bagInventory.getSlots()) return EnumActionResult.FAIL;
-
-            ItemStack toPlace = bagInventory.getStackInSlot(randomSlot);
-
-            if (toPlace.isEmpty()) return EnumActionResult.FAIL;
+            ItemStack toPlace = pickRandomStack(bagInventory);
+            if (toPlace.isEmpty()) return ActionResultType.FAIL;
 
             //Previously: use onItemUse to place block (no synergy)
             //bag.setItemDamage(toPlace.getMetadata());
             //toPlace.onItemUse(player, world, pos, hand, facing, hitX, hitY, hitZ);
 
-            if (!world.getBlockState(pos).getBlock().isReplaceable(world, pos)) {
+            //TODO replaceable
+            if (!world.getBlockState(pos).getBlock().getMaterial(world.getBlockState(pos)).isReplaceable()) {
                 pos = pos.offset(facing);
             }
 
-            IBlockState blockState = Block.getBlockFromItem(toPlace.getItem()).getStateForPlacement(world, pos, facing,
-                    hitX, hitY, hitZ, toPlace.getMetadata(), player, hand);
-            world.setBlockState(pos, blockState);
+            BlockItemUseContext blockItemUseContext = new BlockItemUseContext(new ItemUseContext(player, Hand.MAIN_HAND, new BlockRayTraceResult(hitVec, facing, pos, false)));
+            BlockState blockState = Block.getBlockFromItem(toPlace.getItem()).getStateForPlacement(blockItemUseContext);
+
+            SurvivalHelper.placeBlock(world, player, pos, blockState, toPlace, facing, hitVec, false, false, true);
 
             //Synergy
-            BlockSnapshot blockSnapshot = new BlockSnapshot(player.world, pos, blockState);
-            BlockEvent.PlaceEvent placeEvent = new BlockEvent.PlaceEvent(blockSnapshot, blockState, player, hand);
-            Mirror.onBlockPlaced(placeEvent);
-            Array.onBlockPlaced(placeEvent);
+            //Works without calling
+//            BlockSnapshot blockSnapshot = new BlockSnapshot(player.world, pos, blockState);
+//            BlockEvent.PlaceEvent placeEvent = new BlockEvent.PlaceEvent(blockSnapshot, blockState, player, hand);
+//            Mirror.onBlockPlaced(placeEvent);
+//            Array.onBlockPlaced(placeEvent);
         }
-        return EnumActionResult.SUCCESS;
+        return ActionResultType.SUCCESS;
     }
 
     @Override
-    public ActionResult<ItemStack> onItemRightClick(World world, EntityPlayer player, EnumHand hand) {
+    public ActionResult<ItemStack> onItemRightClick(World world, PlayerEntity player, Hand hand) {
+        ItemStack bag = player.getHeldItem(hand);
 
         if (player.isSneaking()) {
-            if (world.isRemote) return new ActionResult<>(EnumActionResult.SUCCESS, player.getHeldItem(hand));
+            if (world.isRemote) return new ActionResult<>(ActionResultType.SUCCESS, bag);
             //Open inventory
-            player.openGui(EffortlessBuilding.instance, EffortlessBuilding.RANDOMIZER_BAG_GUI, world, 0, 0, 0);
+            NetworkHooks.openGui((ServerPlayerEntity) player, new ContainerProvider(bag));
         } else {
             //Use item
             //Get bag inventory
-            ItemStack bag = player.getHeldItem(hand);
             IItemHandler bagInventory = getBagInventory(bag);
             if (bagInventory == null)
-                return new ActionResult<>(EnumActionResult.FAIL, player.getHeldItem(hand));
+                return new ActionResult<>(ActionResultType.FAIL, bag);
 
-            int randomSlot = pickRandomSlot(bagInventory);
-            if (randomSlot < 0 || randomSlot > bagInventory.getSlots())
-                return new ActionResult<>(EnumActionResult.FAIL, player.getHeldItem(hand));
-
-            ItemStack toUse = bagInventory.getStackInSlot(randomSlot);
-            if (toUse.isEmpty()) return new ActionResult<>(EnumActionResult.FAIL, player.getHeldItem(hand));
+            ItemStack toUse = pickRandomStack(bagInventory);
+            if (toUse.isEmpty()) return new ActionResult<>(ActionResultType.FAIL, bag);
 
             return toUse.useItemRightClick(world, player, hand);
         }
-        return new ActionResult<>(EnumActionResult.PASS, player.getHeldItem(hand));
+        return new ActionResult<>(ActionResultType.PASS, bag);
     }
 
     /**
@@ -121,8 +141,7 @@ public class ItemRandomizerBag extends Item {
      * @return
      */
     public static IItemHandler getBagInventory(ItemStack bag) {
-        if (!bag.hasCapability(CapabilityItemHandler.ITEM_HANDLER_CAPABILITY, null)) return null;
-        return bag.getCapability(CapabilityItemHandler.ITEM_HANDLER_CAPABILITY, null);
+        return bag.getCapability(CapabilityItemHandler.ITEM_HANDLER_CAPABILITY, null).orElse(null);
     }
 
     /**
@@ -131,7 +150,7 @@ public class ItemRandomizerBag extends Item {
      * @param bagInventory
      * @return
      */
-    public static int pickRandomSlot(IItemHandler bagInventory) {
+    public static ItemStack pickRandomStack(IItemHandler bagInventory) {
         //Find how many stacks are non-empty, and save them in a list
         int nonempty = 0;
         List<ItemStack> nonEmptyStacks = new ArrayList<>(INV_SIZE);
@@ -148,28 +167,79 @@ public class ItemRandomizerBag extends Item {
         if (nonEmptyStacks.size() != originalSlots.size())
             throw new Error("NonEmptyStacks and OriginalSlots not same size");
 
-        if (nonempty == 0) return -1;
+        if (nonempty == 0) return ItemStack.EMPTY;
 
         //Pick random slot
         int randomSlot = rand.nextInt(nonempty);
+        if (randomSlot < 0 || randomSlot > bagInventory.getSlots()) return ItemStack.EMPTY;
 
-        return originalSlots.get(randomSlot);
+        int originalSlot = originalSlots.get(randomSlot);
+        if (originalSlot < 0 || originalSlot > bagInventory.getSlots()) return ItemStack.EMPTY;
+
+        return bagInventory.getStackInSlot(originalSlot);
+    }
+
+    public static ItemStack findStack(IItemHandler bagInventory, Item item) {
+        for (int i = 0; i < bagInventory.getSlots(); i++) {
+            ItemStack stack = bagInventory.getStackInSlot(i);
+            if (!stack.isEmpty() && stack.getItem() == item) {
+                return stack;
+            }
+        }
+        return ItemStack.EMPTY;
     }
 
     @Override
-    public int getMaxItemUseDuration(ItemStack stack) {
+    public int getUseDuration(ItemStack p_77626_1_) {
         return 1;
     }
 
     @Nullable
     @Override
-    public ICapabilityProvider initCapabilities(ItemStack stack, @Nullable NBTTagCompound nbt) {
+    public ICapabilityProvider initCapabilities(ItemStack stack, @Nullable CompoundNBT nbt) {
         return new ItemHandlerCapabilityProvider();
     }
 
     @Override
-    public void addInformation(ItemStack stack, @Nullable World world, List<String> tooltip, ITooltipFlag flag) {
-        tooltip.add(TextFormatting.BLUE + "Rightclick" + TextFormatting.GRAY + " to place a random block");
-        tooltip.add(TextFormatting.BLUE + "Sneak + rightclick" + TextFormatting.GRAY + " to open inventory");
+    public void addInformation(ItemStack stack, @Nullable World world, List<ITextComponent> tooltip, ITooltipFlag flag) {
+        tooltip.add(new StringTextComponent(TextFormatting.BLUE + "Rightclick" + TextFormatting.GRAY + " to place a random block"));
+        tooltip.add(new StringTextComponent(TextFormatting.BLUE + "Sneak + rightclick" + TextFormatting.GRAY + " to open inventory"));
+        if (world != null && world.getPlayers().size() > 1) {
+            tooltip.add(new StringTextComponent(TextFormatting.YELLOW + "Experimental on servers: may lose inventory"));
+        }
+    }
+
+    @Override
+    public String getTranslationKey() {
+        return this.getRegistryName().toString();
+    }
+
+    public static void resetRandomness() {
+        rand.setSeed(currentSeed);
+    }
+
+    public static void renewRandomness() {
+        currentSeed = Calendar.getInstance().getTimeInMillis();
+        rand.setSeed(currentSeed);
+    }
+
+    public static class ContainerProvider implements INamedContainerProvider{
+
+        private ItemStack bag;
+
+        public ContainerProvider(ItemStack bag) {
+            this.bag = bag;
+        }
+
+        @Override
+        public ITextComponent getDisplayName() {
+            return new TranslationTextComponent("effortlessbuilding.screen.randomizer_bag");
+        }
+
+        @Nullable
+        @Override
+        public Container createMenu(int containerId, PlayerInventory playerInventory, PlayerEntity player) {
+            return new RandomizerBagContainer(containerId, playerInventory, ItemRandomizerBag.getBagInventory(bag));
+        }
     }
 }

src/main/java/nl/requios/effortlessbuilding/item/ItemReachUpgrade1.java

@@ -0,0 +1,65 @@
+package nl.requios.effortlessbuilding.item;
+
+import net.minecraft.client.util.ITooltipFlag;
+import net.minecraft.entity.player.PlayerEntity;
+import net.minecraft.item.Item;
+import net.minecraft.item.ItemGroup;
+import net.minecraft.item.ItemStack;
+import net.minecraft.util.*;
+import net.minecraft.util.text.ITextComponent;
+import net.minecraft.util.text.StringTextComponent;
+import net.minecraft.util.text.TextFormatting;
+import net.minecraft.world.World;
+import nl.requios.effortlessbuilding.BuildConfig;
+import nl.requios.effortlessbuilding.EffortlessBuilding;
+import nl.requios.effortlessbuilding.buildmodifier.ModifierSettingsManager;
+import nl.requios.effortlessbuilding.helper.ReachHelper;
+
+import javax.annotation.Nullable;
+import java.util.List;
+
+public class ItemReachUpgrade1 extends Item {
+
+    public ItemReachUpgrade1() {
+        super(new Item.Properties().group(ItemGroup.TOOLS).maxStackSize(1));
+        this.setRegistryName(EffortlessBuilding.MODID, "reach_upgrade1");
+    }
+
+    @Override
+    public ActionResult<ItemStack> onItemRightClick(World world, PlayerEntity player, Hand hand) {
+        if (player.isCreative()) {
+            if (world.isRemote) EffortlessBuilding.log(player, "Reach upgrades are not necessary in creative.");
+            if (world.isRemote) EffortlessBuilding.log(player, "Still want increased reach? Use the config.");
+            return new ActionResult<>(ActionResultType.PASS, player.getHeldItem(hand));
+        }
+
+        ModifierSettingsManager.ModifierSettings modifierSettings = ModifierSettingsManager.getModifierSettings(player);
+        int currentLevel = modifierSettings.getReachUpgrade();
+        if (currentLevel == 0) {
+            modifierSettings.setReachUpgrade(1);
+
+            if (world.isRemote) EffortlessBuilding.log(player, "Upgraded reach to " + ReachHelper.getMaxReach(player));
+            player.setHeldItem(hand, ItemStack.EMPTY);
+
+            SoundEvent soundEvent = new SoundEvent(new ResourceLocation("entity.player.levelup"));
+            player.playSound(soundEvent, 1f, 1f);
+        } else if (currentLevel > 0) {
+            if (world.isRemote) EffortlessBuilding.log(player, "Already used this upgrade! Current reach is " + ReachHelper
+                    .getMaxReach(player) + ".");
+
+            SoundEvent soundEvent = new SoundEvent(new ResourceLocation("item.armor.equip_leather"));
+            player.playSound(soundEvent, 1f, 1f);
+        }
+        return new ActionResult<>(ActionResultType.PASS, player.getHeldItem(hand));
+    }
+
+    @Override
+    public void addInformation(ItemStack stack, @Nullable World world, List<ITextComponent> tooltip, ITooltipFlag flag) {
+        tooltip.add(new StringTextComponent(TextFormatting.GRAY + "Consume to increase reach to " + TextFormatting.BLUE + BuildConfig.reach.maxReachLevel1.get()));
+    }
+
+    @Override
+    public String getTranslationKey() {
+        return this.getRegistryName().toString();
+    }
+}

src/main/java/nl/requios/effortlessbuilding/item/ItemReachUpgrade2.java

@@ -0,0 +1,70 @@
+package nl.requios.effortlessbuilding.item;
+
+import net.minecraft.client.util.ITooltipFlag;
+import net.minecraft.entity.player.PlayerEntity;
+import net.minecraft.item.Item;
+import net.minecraft.item.ItemGroup;
+import net.minecraft.item.ItemStack;
+import net.minecraft.util.*;
+import net.minecraft.util.text.ITextComponent;
+import net.minecraft.util.text.StringTextComponent;
+import net.minecraft.util.text.TextFormatting;
+import net.minecraft.world.World;
+import nl.requios.effortlessbuilding.BuildConfig;
+import nl.requios.effortlessbuilding.EffortlessBuilding;
+import nl.requios.effortlessbuilding.buildmodifier.ModifierSettingsManager;
+import nl.requios.effortlessbuilding.helper.ReachHelper;
+
+import javax.annotation.Nullable;
+import java.util.List;
+
+public class ItemReachUpgrade2 extends Item {
+
+    public ItemReachUpgrade2() {
+        super(new Item.Properties().group(ItemGroup.TOOLS).maxStackSize(1));
+        this.setRegistryName(EffortlessBuilding.MODID, "reach_upgrade2");
+    }
+
+    @Override
+    public ActionResult<ItemStack> onItemRightClick(World world, PlayerEntity player, Hand hand) {
+        if (player.isCreative()) {
+            if (world.isRemote) EffortlessBuilding.log(player, "Reach upgrades are not necessary in creative.");
+            if (world.isRemote) EffortlessBuilding.log(player, "Still want increased reach? Use the config.");
+            return new ActionResult<>(ActionResultType.PASS, player.getHeldItem(hand));
+        }
+
+        ModifierSettingsManager.ModifierSettings modifierSettings = ModifierSettingsManager.getModifierSettings(player);
+        int currentLevel = modifierSettings.getReachUpgrade();
+        if (currentLevel == 1) {
+            modifierSettings.setReachUpgrade(2);
+            if (world.isRemote) EffortlessBuilding.log(player, "Upgraded reach to " + ReachHelper.getMaxReach(player));
+            player.setHeldItem(hand, ItemStack.EMPTY);
+
+            SoundEvent soundEvent = new SoundEvent(new ResourceLocation("entity.player.levelup"));
+            player.playSound(soundEvent, 1f, 1f);
+        } else if (currentLevel < 1) {
+            if (world.isRemote) EffortlessBuilding.log(player, "Use Reach Upgrade 1 first.");
+
+            SoundEvent soundEvent = new SoundEvent(new ResourceLocation("item.armor.equip_leather"));
+            player.playSound(soundEvent, 1f, 1f);
+        } else if (currentLevel > 1) {
+            if (world.isRemote) EffortlessBuilding.log(player, "Already used this upgrade! Current reach is " + ReachHelper
+                    .getMaxReach(player) + ".");
+
+            SoundEvent soundEvent = new SoundEvent(new ResourceLocation("item.armor.equip_leather"));
+            player.playSound(soundEvent, 1f, 1f);
+        }
+        return new ActionResult<>(ActionResultType.PASS, player.getHeldItem(hand));
+    }
+
+    @Override
+    public void addInformation(ItemStack stack, @Nullable World world, List<ITextComponent> tooltip, ITooltipFlag flag) {
+        tooltip.add(new StringTextComponent(TextFormatting.GRAY + "Consume to increase reach to " + TextFormatting.BLUE + BuildConfig.reach.maxReachLevel2.get()));
+        tooltip.add(new StringTextComponent(TextFormatting.GRAY + "Previous upgrades need to be consumed first"));
+    }
+
+    @Override
+    public String getTranslationKey() {
+        return this.getRegistryName().toString();
+    }
+}

src/main/java/nl/requios/effortlessbuilding/item/ItemReachUpgrade3.java

@@ -0,0 +1,73 @@
+package nl.requios.effortlessbuilding.item;
+
+import net.minecraft.client.util.ITooltipFlag;
+import net.minecraft.entity.player.PlayerEntity;
+import net.minecraft.item.Item;
+import net.minecraft.item.ItemGroup;
+import net.minecraft.item.ItemStack;
+import net.minecraft.util.*;
+import net.minecraft.util.text.ITextComponent;
+import net.minecraft.util.text.StringTextComponent;
+import net.minecraft.util.text.TextFormatting;
+import net.minecraft.world.World;
+import nl.requios.effortlessbuilding.BuildConfig;
+import nl.requios.effortlessbuilding.EffortlessBuilding;
+import nl.requios.effortlessbuilding.buildmodifier.ModifierSettingsManager;
+import nl.requios.effortlessbuilding.helper.ReachHelper;
+
+import javax.annotation.Nullable;
+import java.util.List;
+
+public class ItemReachUpgrade3 extends Item {
+
+    public ItemReachUpgrade3() {
+        super(new Item.Properties().group(ItemGroup.TOOLS).maxStackSize(1));
+        this.setRegistryName(EffortlessBuilding.MODID, "reach_upgrade3");
+    }
+
+    @Override
+    public ActionResult<ItemStack> onItemRightClick(World world, PlayerEntity player, Hand hand) {
+        if (player.isCreative()) {
+            if (world.isRemote) EffortlessBuilding.log(player, "Reach upgrades are not necessary in creative.");
+            if (world.isRemote) EffortlessBuilding.log(player, "Still want increased reach? Use the config.");
+            return new ActionResult<>(ActionResultType.PASS, player.getHeldItem(hand));
+        }
+
+        ModifierSettingsManager.ModifierSettings modifierSettings = ModifierSettingsManager.getModifierSettings(player);
+        int currentLevel = modifierSettings.getReachUpgrade();
+        if (currentLevel == 2) {
+            modifierSettings.setReachUpgrade(3);
+            if (world.isRemote) EffortlessBuilding.log(player, "Upgraded reach to " + ReachHelper.getMaxReach(player));
+            player.setHeldItem(hand, ItemStack.EMPTY);
+
+            SoundEvent soundEvent = new SoundEvent(new ResourceLocation("entity.player.levelup"));
+            player.playSound(soundEvent, 1f, 1f);
+        } else if (currentLevel < 2) {
+            if (currentLevel == 0)
+                if (world.isRemote) EffortlessBuilding.log(player, "Use Reach Upgrade 1 and 2 first.");
+            if (currentLevel == 1)
+                if (world.isRemote) EffortlessBuilding.log(player, "Use Reach Upgrade 2 first.");
+
+            SoundEvent soundEvent = new SoundEvent(new ResourceLocation("item.armor.equip_leather"));
+            player.playSound(soundEvent, 1f, 1f);
+        } else if (currentLevel > 2) {
+            if (world.isRemote) EffortlessBuilding.log(player, "Already used this upgrade! Current reach is " + ReachHelper
+                    .getMaxReach(player) + ".");
+
+            SoundEvent soundEvent = new SoundEvent(new ResourceLocation("item.armor.equip_leather"));
+            player.playSound(soundEvent, 1f, 1f);
+        }
+        return new ActionResult<>(ActionResultType.PASS, player.getHeldItem(hand));
+    }
+
+    @Override
+    public void addInformation(ItemStack stack, @Nullable World world, List<ITextComponent> tooltip, ITooltipFlag flag) {
+        tooltip.add(new StringTextComponent(TextFormatting.GRAY + "Consume to increase reach to " + TextFormatting.BLUE + BuildConfig.reach.maxReachLevel3.get()));
+        tooltip.add(new StringTextComponent(TextFormatting.GRAY + "Previous upgrades need to be consumed first"));
+    }
+
+    @Override
+    public String getTranslationKey() {
+        return this.getRegistryName().toString();
+    }
+}

src/main/java/nl/requios/effortlessbuilding/network/AddUndoMessage.java

@@ -0,0 +1,87 @@
+package nl.requios.effortlessbuilding.network;
+
+import net.minecraft.block.Block;
+import net.minecraft.block.BlockState;
+import net.minecraft.entity.player.PlayerEntity;
+import net.minecraft.network.PacketBuffer;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.math.Vec3d;
+import net.minecraftforge.fml.LogicalSide;
+import net.minecraftforge.fml.network.NetworkEvent;
+import nl.requios.effortlessbuilding.EffortlessBuilding;
+import nl.requios.effortlessbuilding.buildmodifier.BlockSet;
+import nl.requios.effortlessbuilding.buildmodifier.UndoRedo;
+
+import java.util.ArrayList;
+import java.util.function.Supplier;
+
+/***
+ * Sends a message to the client asking to add a block to the undo stack.
+ */
+public class AddUndoMessage {
+    private BlockPos coordinate;
+    private BlockState previousBlockState;
+    private BlockState newBlockState;
+
+    public AddUndoMessage() {
+        coordinate = BlockPos.ZERO;
+        previousBlockState = null;
+        newBlockState = null;
+    }
+
+    public AddUndoMessage(BlockPos coordinate, BlockState previousBlockState, BlockState newBlockState) {
+        this.coordinate = coordinate;
+        this.previousBlockState = previousBlockState;
+        this.newBlockState = newBlockState;
+    }
+
+    public BlockPos getCoordinate() {
+        return coordinate;
+    }
+
+    public BlockState getPreviousBlockState() {
+        return previousBlockState;
+    }
+
+    public BlockState getNewBlockState() {
+        return newBlockState;
+    }
+
+    public static void encode(AddUndoMessage message, PacketBuffer buf) {
+        buf.writeInt(message.coordinate.getX());
+        buf.writeInt(message.coordinate.getY());
+        buf.writeInt(message.coordinate.getZ());
+        buf.writeInt(Block.getStateId(message.previousBlockState));
+        buf.writeInt(Block.getStateId(message.newBlockState));
+    }
+
+    public static AddUndoMessage decode(PacketBuffer buf) {
+        BlockPos coordinate = new BlockPos(buf.readInt(), buf.readInt(), buf.readInt());
+        BlockState previousBlockState = Block.getStateById(buf.readInt());
+        BlockState newBlockState = Block.getStateById(buf.readInt());
+        return new AddUndoMessage(coordinate, previousBlockState, newBlockState);
+    }
+
+    public static class Handler
+    {
+        public static void handle(AddUndoMessage message, Supplier<NetworkEvent.Context> ctx)
+        {
+            ctx.get().enqueueWork(() -> {
+                if (ctx.get().getDirection().getReceptionSide() == LogicalSide.CLIENT) {
+                    //Received clientside
+
+                    PlayerEntity player = EffortlessBuilding.proxy.getPlayerEntityFromContext(ctx);
+                    //Add to undo stack clientside
+                    //Only the appropriate player that needs to add this to the undo stack gets this message
+                    UndoRedo.addUndo(player, new BlockSet(
+                            new ArrayList<BlockPos>() {{add(message.getCoordinate());}},
+                            new ArrayList<BlockState>() {{add(message.getPreviousBlockState());}},
+                            new ArrayList<BlockState>() {{add(message.getNewBlockState());}},
+                            new Vec3d(0,0,0),
+                            message.getCoordinate(), message.getCoordinate()));
+                }
+            });
+            ctx.get().setPacketHandled(true);
+        }
+    }
+}

src/main/java/nl/requios/effortlessbuilding/network/BlockBrokenMessage.java

@@ -0,0 +1,95 @@
+package nl.requios.effortlessbuilding.network;
+
+import net.minecraft.network.PacketBuffer;
+import net.minecraft.util.Direction;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.math.BlockRayTraceResult;
+import net.minecraft.util.math.RayTraceResult;
+import net.minecraft.util.math.Vec3d;
+import net.minecraftforge.fml.LogicalSide;
+import net.minecraftforge.fml.network.NetworkEvent;
+import nl.requios.effortlessbuilding.EffortlessBuilding;
+import nl.requios.effortlessbuilding.buildmode.BuildModes;
+
+import java.util.function.Supplier;
+
+/***
+ * Sends a message to the server indicating that a player wants to break a block
+ */
+public class BlockBrokenMessage {
+
+    private boolean blockHit;
+    private BlockPos blockPos;
+    private Direction sideHit;
+    private Vec3d hitVec;
+
+    public BlockBrokenMessage() {
+        this.blockHit = false;
+        this.blockPos = BlockPos.ZERO;
+        this.sideHit = Direction.UP;
+        this.hitVec = new Vec3d(0, 0, 0);
+    }
+
+    public BlockBrokenMessage(BlockRayTraceResult result) {
+        this.blockHit = result.getType() == RayTraceResult.Type.BLOCK;
+        this.blockPos = result.getPos();
+        this.sideHit = result.getFace();
+        this.hitVec = result.getHitVec();
+    }
+
+    public BlockBrokenMessage(boolean blockHit, BlockPos blockPos, Direction sideHit, Vec3d hitVec) {
+        this.blockHit = blockHit;
+        this.blockPos = blockPos;
+        this.sideHit = sideHit;
+        this.hitVec = hitVec;
+    }
+
+    public boolean isBlockHit() {
+        return blockHit;
+    }
+
+    public BlockPos getBlockPos() {
+        return blockPos;
+    }
+
+    public Direction getSideHit() {
+        return sideHit;
+    }
+
+    public Vec3d getHitVec() {
+        return hitVec;
+    }
+
+    public static void encode(BlockBrokenMessage message, PacketBuffer buf) {
+        buf.writeBoolean(message.blockHit);
+        buf.writeInt(message.blockPos.getX());
+        buf.writeInt(message.blockPos.getY());
+        buf.writeInt(message.blockPos.getZ());
+        buf.writeInt(message.sideHit.getIndex());
+        buf.writeDouble(message.hitVec.x);
+        buf.writeDouble(message.hitVec.y);
+        buf.writeDouble(message.hitVec.z);
+    }
+
+    public static BlockBrokenMessage decode(PacketBuffer buf) {
+        boolean blockHit = buf.readBoolean();
+        BlockPos blockPos = new BlockPos(buf.readInt(), buf.readInt(), buf.readInt());
+        Direction sideHit = Direction.byIndex(buf.readInt());
+        Vec3d hitVec = new Vec3d(buf.readDouble(), buf.readDouble(), buf.readDouble());
+        return new BlockBrokenMessage(blockHit, blockPos, sideHit, hitVec);
+    }
+
+    public static class Handler
+    {
+        public static void handle(BlockBrokenMessage message, Supplier<NetworkEvent.Context> ctx)
+        {
+            ctx.get().enqueueWork(() -> {
+                if (ctx.get().getDirection().getReceptionSide() == LogicalSide.SERVER) {
+                    //Received serverside
+                    BuildModes.onBlockBrokenMessage(ctx.get().getSender(), message);
+                }
+            });
+            ctx.get().setPacketHandled(true);
+        }
+    }
+}

src/main/java/nl/requios/effortlessbuilding/network/BlockPlacedMessage.java

@@ -0,0 +1,111 @@
+package nl.requios.effortlessbuilding.network;
+
+import net.minecraft.util.Direction;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.math.BlockRayTraceResult;
+import net.minecraft.util.math.RayTraceResult;
+import net.minecraft.util.math.Vec3d;
+import net.minecraft.network.PacketBuffer;
+import net.minecraftforge.fml.LogicalSide;
+import net.minecraftforge.fml.network.NetworkEvent;
+import nl.requios.effortlessbuilding.EffortlessBuilding;
+import nl.requios.effortlessbuilding.buildmode.BuildModes;
+import nl.requios.effortlessbuilding.render.BlockPreviewRenderer;
+
+import java.util.function.Supplier;
+
+/***
+ * Sends a message to the server indicating that a player wants to place a block.
+ * Received clientside: server has placed blocks and its letting the client know.
+ */
+public class BlockPlacedMessage {
+
+    private boolean blockHit;
+    private BlockPos blockPos;
+    private Direction sideHit;
+    private Vec3d hitVec;
+    private boolean placeStartPos; //prevent double placing in normal mode
+
+    public BlockPlacedMessage() {
+        this.blockHit = false;
+        this.blockPos = BlockPos.ZERO;
+        this.sideHit = Direction.UP;
+        this.hitVec = new Vec3d(0, 0, 0);
+        this.placeStartPos = true;
+    }
+
+    public BlockPlacedMessage(BlockRayTraceResult result, boolean placeStartPos) {
+        this.blockHit = result.getType() == RayTraceResult.Type.BLOCK;
+        this.blockPos = result.getPos();
+        this.sideHit = result.getFace();
+        this.hitVec = result.getHitVec();
+        this.placeStartPos = placeStartPos;
+    }
+
+    public BlockPlacedMessage(boolean blockHit, BlockPos blockPos, Direction sideHit, Vec3d hitVec, boolean placeStartPos) {
+        this.blockHit = blockHit;
+        this.blockPos = blockPos;
+        this.sideHit = sideHit;
+        this.hitVec = hitVec;
+        this.placeStartPos = placeStartPos;
+    }
+
+    public boolean isBlockHit() {
+        return blockHit;
+    }
+
+    public BlockPos getBlockPos() {
+        return blockPos;
+    }
+
+    public Direction getSideHit() {
+        return sideHit;
+    }
+
+    public Vec3d getHitVec() {
+        return hitVec;
+    }
+
+    public boolean getPlaceStartPos() {
+        return placeStartPos;
+    }
+
+    public static void encode(BlockPlacedMessage message, PacketBuffer buf) {
+        buf.writeBoolean(message.blockHit);
+        buf.writeInt(message.blockPos.getX());
+        buf.writeInt(message.blockPos.getY());
+        buf.writeInt(message.blockPos.getZ());
+        buf.writeInt(message.sideHit.getIndex());
+        buf.writeDouble(message.hitVec.x);
+        buf.writeDouble(message.hitVec.y);
+        buf.writeDouble(message.hitVec.z);
+        buf.writeBoolean(message.placeStartPos);
+    }
+
+    public static BlockPlacedMessage decode(PacketBuffer buf) {
+        boolean blockHit = buf.readBoolean();
+        BlockPos blockPos = new BlockPos(buf.readInt(), buf.readInt(), buf.readInt());
+        Direction sideHit = Direction.byIndex(buf.readInt());
+        Vec3d hitVec = new Vec3d(buf.readDouble(), buf.readDouble(), buf.readDouble());
+        boolean placeStartPos = buf.readBoolean();
+        return new BlockPlacedMessage(blockHit, blockPos, sideHit, hitVec, placeStartPos);
+    }
+
+    public static class Handler
+    {
+        public static void handle(BlockPlacedMessage message, Supplier<NetworkEvent.Context> ctx)
+        {
+            ctx.get().enqueueWork(() -> {
+                if (ctx.get().getDirection().getReceptionSide() == LogicalSide.CLIENT) {
+                    //Received clientside
+                    //Nod RenderHandler to do the dissolve shader effect
+                    BlockPreviewRenderer.onBlocksPlaced();
+                } else {
+                    //Received serverside
+                    BuildModes.onBlockPlacedMessage(ctx.get().getSender(), message);
+                }
+            });
+            ctx.get().setPacketHandled(true);
+        }
+    }
+}

src/main/java/nl/requios/effortlessbuilding/network/BuildSettingsMessage.java

@@ -1,111 +0,0 @@
-package nl.requios.effortlessbuilding.network;
-
-import io.netty.buffer.ByteBuf;
-import net.minecraft.client.Minecraft;
-import net.minecraft.entity.player.EntityPlayer;
-import net.minecraft.entity.player.EntityPlayerMP;
-import net.minecraft.util.IThreadListener;
-import net.minecraft.util.math.BlockPos;
-import net.minecraft.util.math.Vec3d;
-import net.minecraftforge.fml.common.network.simpleimpl.IMessage;
-import net.minecraftforge.fml.common.network.simpleimpl.IMessageHandler;
-import net.minecraftforge.fml.common.network.simpleimpl.MessageContext;
-import nl.requios.effortlessbuilding.Array;
-import nl.requios.effortlessbuilding.BuildSettingsManager;
-import nl.requios.effortlessbuilding.BuildSettingsManager.BuildSettings;
-import nl.requios.effortlessbuilding.EffortlessBuilding;
-import nl.requios.effortlessbuilding.Mirror;
-
-public class BuildSettingsMessage implements IMessage {
-
-    private BuildSettings buildSettings;
-
-    public BuildSettingsMessage() {
-    }
-
-    public BuildSettingsMessage(BuildSettings buildSettings) {
-        this.buildSettings = buildSettings;
-    }
-
-    @Override
-    public void toBytes(ByteBuf buf) {
-        //MIRROR
-        Mirror.MirrorSettings m = buildSettings.getMirrorSettings();
-        buf.writeBoolean(m.enabled);
-        buf.writeDouble(m.position.x);
-        buf.writeDouble(m.position.y);
-        buf.writeDouble(m.position.z);
-        buf.writeBoolean(m.mirrorX);
-        buf.writeBoolean(m.mirrorY);
-        buf.writeBoolean(m.mirrorZ);
-        buf.writeInt(m.radius);
-        buf.writeBoolean(m.drawLines);
-        buf.writeBoolean(m.drawPlanes);
-
-        //ARRAY
-        Array.ArraySettings a = buildSettings.getArraySettings();
-        buf.writeBoolean(a.enabled);
-        buf.writeInt(a.offset.getX());
-        buf.writeInt(a.offset.getY());
-        buf.writeInt(a.offset.getZ());
-        buf.writeInt(a.count);
-
-        buf.writeBoolean(buildSettings.doQuickReplace());
-    }
-
-    @Override
-    public void fromBytes(ByteBuf buf) {
-        //MIRROR
-        boolean mirrorEnabled = buf.readBoolean();
-        Vec3d mirrorPosition = new Vec3d(buf.readDouble(), buf.readDouble(), buf.readDouble());
-        boolean mirrorX = buf.readBoolean();
-        boolean mirrorY = buf.readBoolean();
-        boolean mirrorZ = buf.readBoolean();
-        int mirrorRadius = buf.readInt();
-        boolean mirrorDrawLines = buf.readBoolean();
-        boolean mirrorDrawPlanes = buf.readBoolean();
-        Mirror.MirrorSettings m = new Mirror.MirrorSettings(mirrorEnabled, mirrorPosition, mirrorX, mirrorY, mirrorZ, mirrorRadius, mirrorDrawLines, mirrorDrawPlanes);
-
-        //ARRAY
-        boolean arrayEnabled = buf.readBoolean();
-        BlockPos arrayOffset = new BlockPos(buf.readInt(), buf.readInt(), buf.readInt());
-        int arrayCount = buf.readInt();
-        Array.ArraySettings a = new Array.ArraySettings(arrayEnabled, arrayOffset, arrayCount);
-
-        boolean quickReplace = buf.readBoolean();
-        buildSettings = new BuildSettings(m, a, quickReplace);
-    }
-
-    // The params of the IMessageHandler are <REQ, REPLY>
-    public static class MessageHandler implements IMessageHandler<BuildSettingsMessage, IMessage> {
-        // Do note that the default constructor is required, but implicitly defined in this case
-
-        @Override
-        public IMessage onMessage(BuildSettingsMessage message, MessageContext ctx) {
-            //EffortlessBuilding.log("message received on " + ctx.side + " side");
-
-            // This is the player the packet was sent to the server from
-            EntityPlayer player = EffortlessBuilding.proxy.getPlayerEntityFromContext(ctx);
-            // The value that was sent
-            BuildSettings buildSettings = message.buildSettings;
-            Mirror.MirrorSettings m = buildSettings.getMirrorSettings();
-            Array.ArraySettings a = buildSettings.getArraySettings();
-
-            // Sanitize
-            m.radius = Math.min(m.radius, Mirror.MAX_RADIUS);
-            m.radius = Math.max(1, m.radius);
-
-            a.count = Math.min(a.count, Array.MAX_COUNT);
-            a.count = Math.max(0, a.count);
-
-            // Execute the action on the main server thread by adding it as a scheduled task
-            IThreadListener threadListener = EffortlessBuilding.proxy.getThreadListenerFromContext(ctx);
-            threadListener.addScheduledTask(() -> {
-                EntityPlayer p = EffortlessBuilding.proxy.getPlayerEntityFromContext(ctx);
-                BuildSettingsManager.setBuildSettings(p, buildSettings);
-            });
-            // No response packet
-            return null;
-        }
-    }
-}

src/main/java/nl/requios/effortlessbuilding/network/CancelModeMessage.java

@@ -0,0 +1,35 @@
+package nl.requios.effortlessbuilding.network;
+
+import net.minecraft.entity.player.PlayerEntity;
+import net.minecraft.network.PacketBuffer;
+import net.minecraftforge.fml.network.NetworkEvent;
+import nl.requios.effortlessbuilding.EffortlessBuilding;
+import nl.requios.effortlessbuilding.buildmode.BuildModes;
+
+import java.util.function.Supplier;
+
+/**
+ * Sends a message to the server indicating that a buildmode needs to be canceled for a player
+ */
+public class CancelModeMessage {
+
+    public static void encode(CancelModeMessage message, PacketBuffer buf) {
+    }
+
+    public static CancelModeMessage decode(PacketBuffer buf) {
+        return new CancelModeMessage();
+    }
+
+    public static class Handler
+    {
+        public static void handle(CancelModeMessage message, Supplier<NetworkEvent.Context> ctx)
+        {
+            ctx.get().enqueueWork(() -> {
+                PlayerEntity player = EffortlessBuilding.proxy.getPlayerEntityFromContext(ctx);
+
+                BuildModes.initializeMode(player);
+            });
+            ctx.get().setPacketHandled(true);
+        }
+    }
+}

src/main/java/nl/requios/effortlessbuilding/network/ClearUndoMessage.java

@@ -0,0 +1,44 @@
+package nl.requios.effortlessbuilding.network;
+
+import net.minecraft.entity.player.PlayerEntity;
+import net.minecraft.network.PacketBuffer;
+import net.minecraftforge.fml.LogicalSide;
+import net.minecraftforge.fml.network.NetworkEvent;
+import nl.requios.effortlessbuilding.EffortlessBuilding;
+import nl.requios.effortlessbuilding.buildmodifier.UndoRedo;
+
+import java.util.function.Supplier;
+
+/***
+ * Sends a message to the client asking to clear the undo and redo stacks.
+ */
+public class ClearUndoMessage {
+
+    public ClearUndoMessage() {
+    }
+
+    public static void encode(ClearUndoMessage message, PacketBuffer buf) {
+
+    }
+
+    public static ClearUndoMessage decode(PacketBuffer buf) {
+        return new ClearUndoMessage();
+    }
+
+    public static class Handler
+    {
+        public static void handle(ClearUndoMessage message, Supplier<NetworkEvent.Context> ctx)
+        {
+            ctx.get().enqueueWork(() -> {
+                if (ctx.get().getDirection().getReceptionSide() == LogicalSide.CLIENT) {
+                    //Received clientside
+                    PlayerEntity player = EffortlessBuilding.proxy.getPlayerEntityFromContext(ctx);
+
+                    //Add to undo stack clientside
+                    UndoRedo.clear(player);
+                }
+            });
+            ctx.get().setPacketHandled(true);
+        }
+    }
+}

src/main/java/nl/requios/effortlessbuilding/network/ModeActionMessage.java

@@ -0,0 +1,46 @@
+package nl.requios.effortlessbuilding.network;
+
+import net.minecraft.entity.player.PlayerEntity;
+import net.minecraft.network.PacketBuffer;
+import net.minecraftforge.fml.network.NetworkEvent;
+import nl.requios.effortlessbuilding.EffortlessBuilding;
+import nl.requios.effortlessbuilding.buildmode.ModeOptions;
+
+import java.util.function.Supplier;
+
+/**
+ * Shares mode settings (see ModeSettingsManager) between server and client
+ */
+public class ModeActionMessage {
+
+    private ModeOptions.ActionEnum action;
+
+    public ModeActionMessage() {
+    }
+
+    public ModeActionMessage(ModeOptions.ActionEnum action) {
+        this.action = action;
+    }
+
+    public static void encode(ModeActionMessage message, PacketBuffer buf) {
+        buf.writeInt(message.action.ordinal());
+    }
+
+    public static ModeActionMessage decode(PacketBuffer buf) {
+        ModeOptions.ActionEnum action = ModeOptions.ActionEnum.values()[buf.readInt()];
+        return new ModeActionMessage(action);
+    }
+
+    public static class Handler
+    {
+        public static void handle(ModeActionMessage message, Supplier<NetworkEvent.Context> ctx)
+        {
+            ctx.get().enqueueWork(() -> {
+                PlayerEntity player = EffortlessBuilding.proxy.getPlayerEntityFromContext(ctx);
+
+                ModeOptions.performAction(player, message.action);
+            });
+            ctx.get().setPacketHandled(true);
+        }
+    }
+}

src/main/java/nl/requios/effortlessbuilding/network/ModeSettingsMessage.java

@@ -0,0 +1,52 @@
+package nl.requios.effortlessbuilding.network;
+
+import net.minecraft.entity.player.PlayerEntity;
+import net.minecraft.network.PacketBuffer;
+import net.minecraftforge.fml.network.NetworkEvent;
+import nl.requios.effortlessbuilding.EffortlessBuilding;
+import nl.requios.effortlessbuilding.buildmode.BuildModes;
+import nl.requios.effortlessbuilding.buildmode.ModeSettingsManager;
+import nl.requios.effortlessbuilding.buildmode.ModeSettingsManager.ModeSettings;
+
+import java.util.function.Supplier;
+
+/**
+ * Shares mode settings (see ModeSettingsManager) between server and client
+ */
+public class ModeSettingsMessage {
+
+    private ModeSettings modeSettings;
+
+    public ModeSettingsMessage() {
+    }
+
+    public ModeSettingsMessage(ModeSettings modeSettings) {
+        this.modeSettings = modeSettings;
+    }
+
+    public static void encode(ModeSettingsMessage message, PacketBuffer buf) {
+        buf.writeInt(message.modeSettings.getBuildMode().ordinal());
+    }
+
+    public static ModeSettingsMessage decode(PacketBuffer buf) {
+        BuildModes.BuildModeEnum buildMode = BuildModes.BuildModeEnum.values()[buf.readInt()];
+
+        return new ModeSettingsMessage(new ModeSettings(buildMode));
+    }
+
+    public static class Handler
+    {
+        public static void handle(ModeSettingsMessage message, Supplier<NetworkEvent.Context> ctx)
+        {
+            ctx.get().enqueueWork(() -> {
+                PlayerEntity player = EffortlessBuilding.proxy.getPlayerEntityFromContext(ctx);
+
+                // Sanitize
+                ModeSettingsManager.sanitize(message.modeSettings, player);
+
+                ModeSettingsManager.setModeSettings(player, message.modeSettings);
+            });
+            ctx.get().setPacketHandled(true);
+        }
+    }
+}

src/main/java/nl/requios/effortlessbuilding/network/ModifierSettingsMessage.java

@@ -0,0 +1,142 @@
+package nl.requios.effortlessbuilding.network;
+
+import net.minecraft.entity.player.PlayerEntity;
+import net.minecraft.network.PacketBuffer;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.math.Vec3d;
+import net.minecraftforge.fml.network.NetworkEvent;
+import nl.requios.effortlessbuilding.EffortlessBuilding;
+import nl.requios.effortlessbuilding.buildmodifier.Array;
+import nl.requios.effortlessbuilding.buildmodifier.Mirror;
+import nl.requios.effortlessbuilding.buildmodifier.ModifierSettingsManager;
+import nl.requios.effortlessbuilding.buildmodifier.RadialMirror;
+
+import java.util.function.Supplier;
+
+import static nl.requios.effortlessbuilding.buildmodifier.ModifierSettingsManager.ModifierSettings;
+
+/**
+ * Shares modifier settings (see ModifierSettingsManager) between server and client
+ */
+public class ModifierSettingsMessage {
+
+    private ModifierSettings modifierSettings;
+
+    public ModifierSettingsMessage() {
+    }
+
+    public ModifierSettingsMessage(ModifierSettings modifierSettings) {
+        this.modifierSettings = modifierSettings;
+    }
+
+    public static void encode(ModifierSettingsMessage message, PacketBuffer buf) {
+        //MIRROR
+        Mirror.MirrorSettings m = message.modifierSettings.getMirrorSettings();
+        buf.writeBoolean(m != null);
+        if (m != null) {
+            buf.writeBoolean(m.enabled);
+            buf.writeDouble(m.position.x);
+            buf.writeDouble(m.position.y);
+            buf.writeDouble(m.position.z);
+            buf.writeBoolean(m.mirrorX);
+            buf.writeBoolean(m.mirrorY);
+            buf.writeBoolean(m.mirrorZ);
+            buf.writeInt(m.radius);
+            buf.writeBoolean(m.drawLines);
+            buf.writeBoolean(m.drawPlanes);
+        }
+
+        //ARRAY
+        Array.ArraySettings a = message.modifierSettings.getArraySettings();
+        buf.writeBoolean(a != null);
+        if (a != null) {
+            buf.writeBoolean(a.enabled);
+            buf.writeInt(a.offset.getX());
+            buf.writeInt(a.offset.getY());
+            buf.writeInt(a.offset.getZ());
+            buf.writeInt(a.count);
+        }
+
+        buf.writeBoolean(message.modifierSettings.doQuickReplace());
+
+        buf.writeInt(message.modifierSettings.getReachUpgrade());
+
+        //RADIAL MIRROR
+        RadialMirror.RadialMirrorSettings r = message.modifierSettings.getRadialMirrorSettings();
+        buf.writeBoolean(r != null);
+        if (r != null) {
+            buf.writeBoolean(r.enabled);
+            buf.writeDouble(r.position.x);
+            buf.writeDouble(r.position.y);
+            buf.writeDouble(r.position.z);
+            buf.writeInt(r.slices);
+            buf.writeBoolean(r.alternate);
+            buf.writeInt(r.radius);
+            buf.writeBoolean(r.drawLines);
+            buf.writeBoolean(r.drawPlanes);
+        }
+    }
+
+    public static ModifierSettingsMessage decode(PacketBuffer buf) {
+        //MIRROR
+        Mirror.MirrorSettings m = new Mirror.MirrorSettings();
+        if (buf.readBoolean()) {
+            boolean mirrorEnabled = buf.readBoolean();
+            Vec3d mirrorPosition = new Vec3d(buf.readDouble(), buf.readDouble(), buf.readDouble());
+            boolean mirrorX = buf.readBoolean();
+            boolean mirrorY = buf.readBoolean();
+            boolean mirrorZ = buf.readBoolean();
+            int mirrorRadius = buf.readInt();
+            boolean mirrorDrawLines = buf.readBoolean();
+            boolean mirrorDrawPlanes = buf.readBoolean();
+            m = new Mirror.MirrorSettings(mirrorEnabled, mirrorPosition, mirrorX, mirrorY, mirrorZ, mirrorRadius,
+                    mirrorDrawLines, mirrorDrawPlanes);
+        }
+
+        //ARRAY
+        Array.ArraySettings a = new Array.ArraySettings();
+        if (buf.readBoolean()) {
+            boolean arrayEnabled = buf.readBoolean();
+            BlockPos arrayOffset = new BlockPos(buf.readInt(), buf.readInt(), buf.readInt());
+            int arrayCount = buf.readInt();
+            a = new Array.ArraySettings(arrayEnabled, arrayOffset, arrayCount);
+        }
+
+        boolean quickReplace = buf.readBoolean();
+
+        int reachUpgrade = buf.readInt();
+
+        //RADIAL MIRROR
+        RadialMirror.RadialMirrorSettings r = new RadialMirror.RadialMirrorSettings();
+        if (buf.readBoolean()) {
+            boolean radialMirrorEnabled = buf.readBoolean();
+            Vec3d radialMirrorPosition = new Vec3d(buf.readDouble(), buf.readDouble(), buf.readDouble());
+            int radialMirrorSlices = buf.readInt();
+            boolean radialMirrorAlternate = buf.readBoolean();
+            int radialMirrorRadius = buf.readInt();
+            boolean radialMirrorDrawLines = buf.readBoolean();
+            boolean radialMirrorDrawPlanes = buf.readBoolean();
+            r = new RadialMirror.RadialMirrorSettings(radialMirrorEnabled, radialMirrorPosition, radialMirrorSlices,
+                    radialMirrorAlternate, radialMirrorRadius, radialMirrorDrawLines, radialMirrorDrawPlanes);
+        }
+
+        ModifierSettings modifierSettings = new ModifierSettings(m, a, r, quickReplace, reachUpgrade);
+        return new ModifierSettingsMessage(modifierSettings);
+    }
+
+    public static class Handler
+    {
+        public static void handle(ModifierSettingsMessage message, Supplier<NetworkEvent.Context> ctx)
+        {
+            ctx.get().enqueueWork(() -> {
+                PlayerEntity player = EffortlessBuilding.proxy.getPlayerEntityFromContext(ctx);
+
+                // Sanitize
+                ModifierSettingsManager.sanitize(message.modifierSettings, player);
+
+                ModifierSettingsManager.setModifierSettings(player, message.modifierSettings);
+            });
+            ctx.get().setPacketHandled(true);
+        }
+    }
+}

src/main/java/nl/requios/effortlessbuilding/network/PacketHandler.java

@@ -0,0 +1,32 @@
+package nl.requios.effortlessbuilding.network;
+
+import net.minecraft.util.ResourceLocation;
+import net.minecraftforge.fml.network.NetworkRegistry;
+import net.minecraftforge.fml.network.simple.SimpleChannel;
+import nl.requios.effortlessbuilding.EffortlessBuilding;
+
+public class PacketHandler {
+    private static final String PROTOCOL_VERSION = "1";
+    public static final SimpleChannel INSTANCE = NetworkRegistry.ChannelBuilder
+            .named(new ResourceLocation(EffortlessBuilding.MODID, "main_channel"))
+            .clientAcceptedVersions(PROTOCOL_VERSION::equals)
+            .serverAcceptedVersions(PROTOCOL_VERSION::equals)
+            .networkProtocolVersion(() -> PROTOCOL_VERSION)
+            .simpleChannel();
+
+    public static void register() {
+        int id = 0;
+
+        INSTANCE.registerMessage(id++, ModifierSettingsMessage.class, ModifierSettingsMessage::encode, ModifierSettingsMessage::decode, ModifierSettingsMessage.Handler::handle);
+        INSTANCE.registerMessage(id++, ModeSettingsMessage.class, ModeSettingsMessage::encode, ModeSettingsMessage::decode, ModeSettingsMessage.Handler::handle);
+        INSTANCE.registerMessage(id++, ModeActionMessage.class, ModeActionMessage::encode, ModeActionMessage::decode, ModeActionMessage.Handler::handle);
+        INSTANCE.registerMessage(id++, BlockPlacedMessage.class, BlockPlacedMessage::encode, BlockPlacedMessage::decode, BlockPlacedMessage.Handler::handle);
+        INSTANCE.registerMessage(id++, BlockBrokenMessage.class, BlockBrokenMessage::encode, BlockBrokenMessage::decode, BlockBrokenMessage.Handler::handle);
+        INSTANCE.registerMessage(id++, CancelModeMessage.class, CancelModeMessage::encode, CancelModeMessage::decode, CancelModeMessage.Handler::handle);
+        INSTANCE.registerMessage(id++, RequestLookAtMessage.class, RequestLookAtMessage::encode, RequestLookAtMessage::decode, RequestLookAtMessage.Handler::handle);
+        INSTANCE.registerMessage(id++, AddUndoMessage.class, AddUndoMessage::encode, AddUndoMessage::decode, AddUndoMessage.Handler::handle);
+        INSTANCE.registerMessage(id++, ClearUndoMessage.class, ClearUndoMessage::encode, ClearUndoMessage::decode, ClearUndoMessage.Handler::handle);
+
+    }
+
+}

src/main/java/nl/requios/effortlessbuilding/network/QuickReplaceMessage.java

@@ -1,89 +0,0 @@
-package nl.requios.effortlessbuilding.network;
-
-import io.netty.buffer.ByteBuf;
-import net.minecraft.util.EnumFacing;
-import net.minecraft.util.math.BlockPos;
-import net.minecraft.util.math.RayTraceResult;
-import net.minecraftforge.fml.common.network.simpleimpl.IMessage;
-import net.minecraftforge.fml.common.network.simpleimpl.IMessageHandler;
-import net.minecraftforge.fml.common.network.simpleimpl.MessageContext;
-import net.minecraftforge.fml.relauncher.Side;
-import nl.requios.effortlessbuilding.EffortlessBuilding;
-import nl.requios.effortlessbuilding.QuickReplace;
-import nl.requios.effortlessbuilding.proxy.ClientProxy;
-
-public class QuickReplaceMessage implements IMessage {
-
-    private boolean blockHit;
-    private BlockPos blockPos;
-    private EnumFacing sideHit;
-
-    public QuickReplaceMessage() {
-        this.blockHit = false;
-        this.blockPos = BlockPos.ORIGIN;
-        this.sideHit = EnumFacing.UP;
-    }
-
-    public QuickReplaceMessage(RayTraceResult result) {
-        this.blockHit = result.typeOfHit == RayTraceResult.Type.BLOCK;
-        this.blockPos = result.getBlockPos();
-        this.sideHit = result.sideHit;
-    }
-
-    public boolean isBlockHit() {
-        return blockHit;
-    }
-
-    public BlockPos getBlockPos() {
-        return blockPos;
-    }
-
-    public EnumFacing getSideHit() {
-        return sideHit;
-    }
-
-    @Override
-    public void toBytes(ByteBuf buf) {
-        buf.writeBoolean(blockHit);
-        buf.writeInt(blockPos.getX());
-        buf.writeInt(blockPos.getY());
-        buf.writeInt(blockPos.getZ());
-        buf.writeInt(sideHit.getIndex());
-    }
-
-    @Override
-    public void fromBytes(ByteBuf buf) {
-        blockHit = buf.readBoolean();
-        blockPos = new BlockPos(buf.readInt(), buf.readInt(), buf.readInt());
-        sideHit = EnumFacing.getFront(buf.readInt());
-    }
-
-    // The params of the IMessageHandler are <REQ, REPLY>
-    public static class MessageHandler implements IMessageHandler<QuickReplaceMessage, IMessage> {
-        // Do note that the default constructor is required, but implicitly defined in this case
-
-        @Override
-        public IMessage onMessage(QuickReplaceMessage message, MessageContext ctx) {
-            //EffortlessBuilding.log("message received on " + ctx.side + " side");
-
-            if (ctx.side == Side.CLIENT){
-                //Received clientside
-                //Send back your info
-                return new QuickReplaceMessage(ClientProxy.previousLookAt);
-
-                //TODO break block then return
-//                Minecraft.getMinecraft().addScheduledTask(() -> {
-//                    EffortlessBuilding.packetHandler.sendToServer(new QuickReplaceMessage(Minecraft.getMinecraft().objectMouseOver));
-//                });
-
-            } else {
-                //Received serverside
-                EffortlessBuilding.proxy.getThreadListenerFromContext(ctx).addScheduledTask(() -> {
-                    QuickReplace.onMessageReceived(ctx.getServerHandler().player, message);
-                });
-            }
-            // No response packet
-            return null;
-        }
-    }
-}

src/main/java/nl/requios/effortlessbuilding/network/RequestLookAtMessage.java

@@ -0,0 +1,64 @@
+package nl.requios.effortlessbuilding.network;
+
+import net.minecraft.entity.player.PlayerEntity;
+import net.minecraft.network.PacketBuffer;
+import net.minecraft.util.math.BlockRayTraceResult;
+import net.minecraft.util.math.RayTraceResult;
+import net.minecraftforge.fml.LogicalSide;
+import net.minecraftforge.fml.network.NetworkEvent;
+import nl.requios.effortlessbuilding.EffortlessBuilding;
+import nl.requios.effortlessbuilding.proxy.ClientProxy;
+
+import java.util.function.Supplier;
+
+/***
+ * Sends a message to the client asking for its lookat (objectmouseover) data.
+ * This is then sent back with a BlockPlacedMessage.
+ */
+public class RequestLookAtMessage {
+    private boolean placeStartPos;
+
+    public RequestLookAtMessage() {
+        placeStartPos = false;
+    }
+
+    public RequestLookAtMessage(boolean placeStartPos) {
+        this.placeStartPos = placeStartPos;
+    }
+
+    public boolean getPlaceStartPos() {
+        return placeStartPos;
+    }
+
+    public static void encode(RequestLookAtMessage message, PacketBuffer buf) {
+        buf.writeBoolean(message.placeStartPos);
+    }
+
+    public static RequestLookAtMessage decode(PacketBuffer buf) {
+        boolean placeStartPos = buf.readBoolean();
+        return new RequestLookAtMessage(placeStartPos);
+    }
+
+    public static class Handler
+    {
+        public static void handle(RequestLookAtMessage message, Supplier<NetworkEvent.Context> ctx)
+        {
+            ctx.get().enqueueWork(() -> {
+                if (ctx.get().getDirection().getReceptionSide() == LogicalSide.CLIENT) {
+                    //Received clientside
+                    //Send back your info
+                    PlayerEntity player = EffortlessBuilding.proxy.getPlayerEntityFromContext(ctx);
+
+                    //Prevent double placing in normal mode with placeStartPos false
+                    //Unless QuickReplace is on, then we do need to place start pos.
+                    if (ClientProxy.previousLookAt.getType() == RayTraceResult.Type.BLOCK) {
+                        PacketHandler.INSTANCE.sendToServer(new BlockPlacedMessage((BlockRayTraceResult) ClientProxy.previousLookAt, message.getPlaceStartPos()));
+                    } else {
+                        PacketHandler.INSTANCE.sendToServer(new BlockPlacedMessage());
+                    }
+                }
+            });
+            ctx.get().setPacketHandled(true);
+        }
+    }
+}

src/main/java/nl/requios/effortlessbuilding/network/TranslatedLogMessage.java

@@ -0,0 +1,79 @@
+package nl.requios.effortlessbuilding.network;
+
+import net.minecraft.block.BlockState;
+import net.minecraft.entity.player.PlayerEntity;
+import net.minecraft.network.PacketBuffer;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.math.Vec3d;
+import net.minecraftforge.fml.LogicalSide;
+import net.minecraftforge.fml.network.NetworkEvent;
+import nl.requios.effortlessbuilding.EffortlessBuilding;
+import nl.requios.effortlessbuilding.buildmodifier.BlockSet;
+import nl.requios.effortlessbuilding.buildmodifier.UndoRedo;
+
+import java.util.ArrayList;
+import java.util.function.Supplier;
+
+public class TranslatedLogMessage {
+    private String prefix;
+    private String translationKey;
+    private String suffix;
+    private boolean actionBar;
+
+    public TranslatedLogMessage(){
+        prefix = "";
+        translationKey = "";
+        suffix = "";
+        actionBar = false;
+    }
+
+    public TranslatedLogMessage(String prefix, String translationKey, String suffix, boolean actionBar) {
+        this.prefix = prefix;
+        this.translationKey = translationKey;
+        this.suffix = suffix;
+        this.actionBar = actionBar;
+    }
+
+    public String getPrefix() {
+        return prefix;
+    }
+
+    public String getTranslationKey() {
+        return translationKey;
+    }
+
+    public String getSuffix() {
+        return suffix;
+    }
+
+    public boolean isActionBar() {
+        return actionBar;
+    }
+
+    public static void encode(TranslatedLogMessage message, PacketBuffer buf) {
+        buf.writeString(message.prefix);
+        buf.writeString(message.translationKey);
+        buf.writeString(message.suffix);
+        buf.writeBoolean(message.actionBar);
+    }
+
+    public static TranslatedLogMessage decode(PacketBuffer buf) {
+        return new TranslatedLogMessage(buf.readString(), buf.readString(), buf.readString(), buf.readBoolean());
+    }
+
+    public static class Handler
+    {
+        public static void handle(TranslatedLogMessage message, Supplier<NetworkEvent.Context> ctx)
+        {
+            ctx.get().enqueueWork(() -> {
+                if (ctx.get().getDirection().getReceptionSide() == LogicalSide.CLIENT) {
+                    //Received clientside
+
+                    PlayerEntity player = EffortlessBuilding.proxy.getPlayerEntityFromContext(ctx);
+                    EffortlessBuilding.logTranslate(player, message.prefix, message.translationKey, message.suffix, message.actionBar);
+                }
+            });
+            ctx.get().setPacketHandled(true);
+        }
+    }
+}

src/main/java/nl/requios/effortlessbuilding/proxy/ClientProxy.java

@@ -1,117 +1,117 @@
 package nl.requios.effortlessbuilding.proxy;
 
-import net.minecraft.block.Block;
+import net.minecraft.block.BlockState;
+import net.minecraft.block.SoundType;
 import net.minecraft.client.Minecraft;
-import net.minecraft.client.entity.EntityPlayerSP;
-import net.minecraft.client.renderer.block.model.ModelResourceLocation;
+import net.minecraft.client.entity.player.ClientPlayerEntity;
+import net.minecraft.client.gui.ScreenManager;
+import net.minecraft.client.gui.screen.Screen;
+import net.minecraft.client.renderer.texture.TextureAtlasSprite;
+import net.minecraft.client.resources.I18n;
 import net.minecraft.client.settings.KeyBinding;
-import net.minecraft.entity.player.EntityPlayer;
-import net.minecraft.entity.player.EntityPlayerMP;
-import net.minecraft.item.Item;
-import net.minecraft.util.IThreadListener;
-import net.minecraft.util.math.RayTraceResult;
+import net.minecraft.client.util.InputMappings;
+import net.minecraft.entity.player.PlayerEntity;
+import net.minecraft.item.BlockItem;
+import net.minecraft.item.ItemStack;
+import net.minecraft.util.Hand;
+import net.minecraft.util.ResourceLocation;
+import net.minecraft.util.SoundCategory;
+import net.minecraft.util.math.*;
 import net.minecraft.util.text.TextFormatting;
-import net.minecraftforge.client.event.ModelRegistryEvent;
-import net.minecraftforge.client.model.ModelLoader;
+import net.minecraft.world.World;
+import net.minecraftforge.api.distmarker.Dist;
+import net.minecraftforge.client.event.GuiOpenEvent;
+import net.minecraftforge.client.event.InputEvent;
+import net.minecraftforge.client.event.TextureStitchEvent;
+import net.minecraftforge.client.settings.KeyConflictContext;
+import net.minecraftforge.client.settings.KeyModifier;
+import net.minecraftforge.event.TickEvent;
+import net.minecraftforge.eventbus.api.SubscribeEvent;
+import net.minecraftforge.fml.DeferredWorkQueue;
+import net.minecraftforge.fml.LogicalSide;
 import net.minecraftforge.fml.client.registry.ClientRegistry;
 import net.minecraftforge.fml.common.Mod;
-import net.minecraftforge.fml.common.event.*;
-import net.minecraftforge.fml.common.eventhandler.EventPriority;
-import net.minecraftforge.fml.common.eventhandler.SubscribeEvent;
-import net.minecraftforge.fml.common.gameevent.InputEvent;
-import net.minecraftforge.fml.common.gameevent.TickEvent;
-import net.minecraftforge.fml.common.network.simpleimpl.MessageContext;
-import net.minecraftforge.fml.relauncher.Side;
-import nl.requios.effortlessbuilding.BuildSettingsManager;
+import net.minecraftforge.fml.event.lifecycle.FMLClientSetupEvent;
+import net.minecraftforge.fml.event.lifecycle.FMLCommonSetupEvent;
+import net.minecraftforge.fml.network.NetworkEvent;
 import nl.requios.effortlessbuilding.EffortlessBuilding;
-import nl.requios.effortlessbuilding.gui.SettingsGui;
-import nl.requios.effortlessbuilding.network.BuildSettingsMessage;
-import org.lwjgl.input.Keyboard;
+import nl.requios.effortlessbuilding.buildmode.BuildModes;
+import nl.requios.effortlessbuilding.buildmode.ModeOptions;
+import nl.requios.effortlessbuilding.buildmode.ModeSettingsManager;
+import nl.requios.effortlessbuilding.buildmodifier.ModifierSettingsManager;
+import nl.requios.effortlessbuilding.compatibility.CompatHelper;
+import nl.requios.effortlessbuilding.gui.RandomizerBagScreen;
+import nl.requios.effortlessbuilding.gui.buildmode.RadialMenu;
+import nl.requios.effortlessbuilding.gui.buildmodifier.ModifierSettingsGui;
+import nl.requios.effortlessbuilding.helper.ReachHelper;
+import nl.requios.effortlessbuilding.network.*;
+import nl.requios.effortlessbuilding.render.ShaderHandler;
+import org.lwjgl.glfw.GLFW;
 
-@Mod.EventBusSubscriber(Side.CLIENT)
+import javax.annotation.Nullable;
+import java.util.HashMap;
+import java.util.function.Supplier;
+
+@Mod.EventBusSubscriber(value = {Dist.CLIENT})
 public class ClientProxy implements IProxy {
     public static KeyBinding[] keyBindings;
     public static RayTraceResult previousLookAt;
     public static RayTraceResult currentLookAt;
+    private static int placeCooldown = 0;
+    private static int breakCooldown = 0;
+    private static boolean shadersInitialized = false;
+
+    public static int ticksInGame = 0;
 
     @Override
-    public void preInit(FMLPreInitializationEvent event) {
-    }
+    public void setup(FMLCommonSetupEvent event) {}
 
     @Override
-    public void init(FMLInitializationEvent event) {
+    public void clientSetup(FMLClientSetupEvent event) {
+        //Crashes in 1.13, do it elsewhere
+//        ShaderHandler.init();
+
         // register key bindings
-        keyBindings = new KeyBinding[2];
+        keyBindings = new KeyBinding[7];
 
         // instantiate the key bindings
-        keyBindings[0] = new KeyBinding("key.hud.desc", Keyboard.KEY_ADD, "key.effortlessbuilding.category");
-        keyBindings[1] = new KeyBinding("key.replace.desc", Keyboard.KEY_SUBTRACT, "key.effortlessbuilding.category");
+        keyBindings[0] = new KeyBinding("key.effortlessbuilding.hud.desc", KeyConflictContext.UNIVERSAL, InputMappings.getInputByCode(GLFW.GLFW_KEY_KP_ADD, 0), "key.effortlessbuilding.category");
+        keyBindings[1] = new KeyBinding("key.effortlessbuilding.replace.desc", KeyConflictContext.IN_GAME, InputMappings.getInputByCode(GLFW.GLFW_KEY_KP_SUBTRACT, 0), "key.effortlessbuilding.category");
+        keyBindings[2] = new KeyBinding("key.effortlessbuilding.creative.desc", KeyConflictContext.IN_GAME, InputMappings.getInputByCode(GLFW.GLFW_KEY_F4, 0), "key.effortlessbuilding.category");
+        keyBindings[3] = new KeyBinding("key.effortlessbuilding.mode.desc", KeyConflictContext.IN_GAME, InputMappings.getInputByCode(GLFW.GLFW_KEY_LEFT_ALT, 0), "key.effortlessbuilding.category") {
+            @Override
+            public boolean conflicts(KeyBinding other) {
+                //Does not conflict with Chisels and Bits radial menu
+                if (other.getKey().getKeyCode() == getKey().getKeyCode() && other.getKeyDescription().equals("mod.chiselsandbits.other.mode")) return false;
+                return super.conflicts(other);
+            }
+        };
+        keyBindings[4] = new KeyBinding("key.effortlessbuilding.undo.desc", KeyConflictContext.IN_GAME, KeyModifier.CONTROL, InputMappings.getInputByCode(GLFW.GLFW_KEY_Z, 0), "key.effortlessbuilding.category");
+        keyBindings[5] = new KeyBinding("key.effortlessbuilding.redo.desc", KeyConflictContext.IN_GAME, KeyModifier.CONTROL, InputMappings.getInputByCode(GLFW.GLFW_KEY_Y, 0), "key.effortlessbuilding.category");
+        keyBindings[6] = new KeyBinding("key.effortlessbuilding.altplacement.desc", KeyConflictContext.IN_GAME, InputMappings.getInputByCode(GLFW.GLFW_KEY_LEFT_CONTROL, 0), "key.effortlessbuilding.category");
+        //keyBindings[7] = new KeyBinding("Reload shaders", KeyConflictContext.UNIVERSAL, InputMappings.getInputByCode(GLFW.GLFW_KEY_TAB, 0), "key.effortlessbuilding.category");
 
         // register all the key bindings
         for (int i = 0; i < keyBindings.length; ++i) {
             ClientRegistry.registerKeyBinding(keyBindings[i]);
         }
+
+        DeferredWorkQueue.runLater( () -> ScreenManager.registerFactory(EffortlessBuilding.RANDOMIZER_BAG_CONTAINER, RandomizerBagScreen::new));
     }
 
-    @Override
-    public void postInit(FMLPostInitializationEvent event) {
-
-    }
-
-    @Override
-    public EntityPlayer getPlayerEntityFromContext(MessageContext ctx) {
-        return (ctx.side.isClient() ? Minecraft.getMinecraft().player : ctx.getServerHandler().player);
-    }
-
-    @Override
-    public IThreadListener getThreadListenerFromContext(MessageContext ctx) {
-        return (ctx.side.isClient() ? Minecraft.getMinecraft() : ((EntityPlayerMP) getPlayerEntityFromContext(ctx)).getServerWorld());
-    }
-
-    @Override
-    public void serverStarting(FMLServerStartingEvent event) {
-        // This will never get called on client side
-    }
-
-    @SubscribeEvent
-    public static void registerModels(ModelRegistryEvent event) {
-        for (Block block : EffortlessBuilding.BLOCKS) {
-            ModelLoader.setCustomModelResourceLocation(Item.getItemFromBlock(block), 0, new ModelResourceLocation(block.getRegistryName(), "inventory"));
-        }
-
-        for (Item item : EffortlessBuilding.ITEMS) {
-            ModelLoader.setCustomModelResourceLocation(item, 0, new ModelResourceLocation(item.getRegistryName(), "inventory"));
-        }
-    }
-
-    @SubscribeEvent(priority = EventPriority.NORMAL, receiveCanceled = true)
-    public static void onKeyPress(InputEvent.KeyInputEvent event) {
-        // check each enumerated key binding type for pressed and take appropriate action
-        EntityPlayerSP player = Minecraft.getMinecraft().player;
-        if (keyBindings[0].isPressed()) {
-            // do stuff for this key binding here
-            // remember you may need to send packet to server
-            if (Minecraft.getMinecraft().currentScreen == null) {
-                Minecraft.getMinecraft().displayGuiScreen(new SettingsGui());
-            } else {
-                player.closeScreen();
-            }
-        }
-        if (keyBindings[1].isPressed()) {
-            // do stuff for this key binding here
-            // remember you may need to send packet to server
-            BuildSettingsManager.BuildSettings buildSettings = BuildSettingsManager.getBuildSettings(player);
-            buildSettings.setQuickReplace(!buildSettings.doQuickReplace());
-            EffortlessBuilding.log(player, "Set "+ TextFormatting.GOLD + "Quick Replace " + TextFormatting.RESET + (buildSettings.doQuickReplace() ? "on" : "off"));
-            EffortlessBuilding.packetHandler.sendToServer(new BuildSettingsMessage(buildSettings));
-        }
+    public PlayerEntity getPlayerEntityFromContext(Supplier<NetworkEvent.Context> ctx){
+        return (ctx.get().getDirection().getReceptionSide() == LogicalSide.CLIENT ? Minecraft.getInstance().player : ctx.get().getSender());
     }
 
     @SubscribeEvent
     public static void onClientTick(TickEvent.ClientTickEvent event) {
-        if (event.phase != TickEvent.Phase.START) return;
 
-        RayTraceResult objectMouseOver = Minecraft.getMinecraft().objectMouseOver;
+        if (event.phase == TickEvent.Phase.START) {
+            onMouseInput();
+
+            //Update previousLookAt
+            RayTraceResult objectMouseOver = Minecraft.getInstance().objectMouseOver;
+            //Checking for null is necessary! Even in vanilla when looking down ladders it is occasionally null (instead of Type MISS)
             if (objectMouseOver == null) return;
 
             if (currentLookAt == null) {
@@ -120,18 +120,248 @@ public class ClientProxy implements IProxy {
                 return;
             }
 
-        if (objectMouseOver.typeOfHit == RayTraceResult.Type.BLOCK) {
-            if (currentLookAt.typeOfHit != RayTraceResult.Type.BLOCK) {
+            if (objectMouseOver.getType() == RayTraceResult.Type.BLOCK) {
+                if (currentLookAt.getType() != RayTraceResult.Type.BLOCK) {
                     currentLookAt = objectMouseOver;
                     previousLookAt = objectMouseOver;
                 } else {
-                if (currentLookAt.getBlockPos() != objectMouseOver.getBlockPos()){
+                    if (((BlockRayTraceResult) currentLookAt).getPos() != ((BlockRayTraceResult) objectMouseOver).getPos()) {
                         previousLookAt = currentLookAt;
                         currentLookAt = objectMouseOver;
                     }
                 }
             }
 
+        } else if (event.phase == TickEvent.Phase.END){
+            Screen gui = Minecraft.getInstance().currentScreen;
+            if(gui == null || !gui.isPauseScreen()) {
+                ticksInGame++;
+            }
+
+            //Init shaders in the first tick. Doing it anywhere before this seems to crash the game.
+            if (!shadersInitialized) {
+                ShaderHandler.init();
+                shadersInitialized = true;
+            }
+        }
 
     }
+
+    private static void onMouseInput() {
+        Minecraft mc = Minecraft.getInstance();
+        ClientPlayerEntity player = mc.player;
+        if (player == null) return;
+        BuildModes.BuildModeEnum buildMode = ModeSettingsManager.getModeSettings(player).getBuildMode();
+
+        if (Minecraft.getInstance().currentScreen != null ||
+            buildMode == BuildModes.BuildModeEnum.NORMAL ||
+            RadialMenu.instance.isVisible()) {
+            return;
+        }
+
+        if (mc.gameSettings.keyBindUseItem.isKeyDown()) {
+
+            //KeyBinding.setKeyBindState(mc.gameSettings.keyBindUseItem.getKeyCode(), false);
+
+            if (placeCooldown <= 0) {
+                placeCooldown = 4;
+
+                ItemStack currentItemStack = player.getHeldItem(Hand.MAIN_HAND);
+                if (currentItemStack.getItem() instanceof BlockItem ||
+                    (CompatHelper.isItemBlockProxy(currentItemStack) && !player.isSneaking())) {
+
+                    ItemStack itemStack = CompatHelper.getItemBlockFromStack(currentItemStack);
+
+                    //find position in distance
+                    RayTraceResult lookingAt = getLookingAt(player);
+                    if (lookingAt != null && lookingAt.getType() == RayTraceResult.Type.BLOCK) {
+                        BlockRayTraceResult blockLookingAt = (BlockRayTraceResult) lookingAt;
+
+                        BuildModes.onBlockPlacedMessage(player, new BlockPlacedMessage(blockLookingAt, true));
+                        PacketHandler.INSTANCE.sendToServer(new BlockPlacedMessage(blockLookingAt, true));
+
+                        //play sound if further than normal
+                        if ((blockLookingAt.getHitVec().subtract(player.getEyePosition(1f))).lengthSquared() > 25f &&
+                            itemStack.getItem() instanceof BlockItem) {
+
+                            BlockState state = ((BlockItem) itemStack.getItem()).getBlock().getDefaultState();
+                            BlockPos blockPos = blockLookingAt.getPos();
+                            SoundType soundType = state.getBlock().getSoundType(state, player.world, blockPos, player);
+                            player.world.playSound(player, player.getPosition(), soundType.getPlaceSound(), SoundCategory.BLOCKS,
+                                    0.4f, soundType.getPitch() * 1f);
+                            player.swingArm(Hand.MAIN_HAND);
+                        }
+                    } else {
+                        BuildModes.onBlockPlacedMessage(player, new BlockPlacedMessage());
+                        PacketHandler.INSTANCE.sendToServer(new BlockPlacedMessage());
+                    }
+                }
+            }
+            else if (buildMode == BuildModes.BuildModeEnum.NORMAL_PLUS) {
+                placeCooldown--;
+                if (ModeOptions.getBuildSpeed() == ModeOptions.ActionEnum.FAST_SPEED) placeCooldown = 0;
+            }
+        } else {
+            placeCooldown = 0;
+        }
+
+        if (mc.gameSettings.keyBindAttack.isKeyDown()) {
+
+            //Break block in distance in creative (or survival if enabled in config)
+            if (breakCooldown <= 0) {
+                breakCooldown = 4;
+
+                //Early out if cant break far, coming from own mouse event (not block broken event)
+                //To make breaking blocks in survival possible like array
+                //TODO this causes not being able to cancel placement in survival
+                //  moving it to after buildmodes fixes that, but introduces this bug
+                if (!ReachHelper.canBreakFar(player)) return;
+
+                RayTraceResult lookingAt = getLookingAt(player);
+                if (lookingAt != null && lookingAt.getType() == RayTraceResult.Type.BLOCK) {
+                    BlockRayTraceResult blockLookingAt = (BlockRayTraceResult) lookingAt;
+
+                    BuildModes.onBlockBrokenMessage(player, new BlockBrokenMessage(blockLookingAt));
+                    PacketHandler.INSTANCE.sendToServer(new BlockBrokenMessage(blockLookingAt));
+
+                    //play sound if further than normal
+                    if ((blockLookingAt.getHitVec().subtract(player.getEyePosition(1f))).lengthSquared() > 25f) {
+
+                        BlockPos blockPos = blockLookingAt.getPos();
+                        BlockState state = player.world.getBlockState(blockPos);
+                        SoundType soundtype = state.getBlock().getSoundType(state, player.world, blockPos, player);
+                        player.world.playSound(player, player.getPosition(), soundtype.getBreakSound(), SoundCategory.BLOCKS,
+                                0.4f, soundtype.getPitch() * 1f);
+                        player.swingArm(Hand.MAIN_HAND);
+                    }
+                } else {
+                    BuildModes.onBlockBrokenMessage(player, new BlockBrokenMessage());
+                    PacketHandler.INSTANCE.sendToServer(new BlockBrokenMessage());
+                }
+            }
+            else if (buildMode == BuildModes.BuildModeEnum.NORMAL_PLUS) {
+                breakCooldown--;
+                if (ModeOptions.getBuildSpeed() == ModeOptions.ActionEnum.FAST_SPEED) breakCooldown = 0;
+            }
+
+            //EffortlessBuilding.packetHandler.sendToServer(new CancelModeMessage());
+
+        } else {
+            breakCooldown = 0;
+        }
+    }
+
+    @SubscribeEvent(receiveCanceled = true)
+    public static void onKeyPress(InputEvent.KeyInputEvent event) {
+        ClientPlayerEntity player = Minecraft.getInstance().player;
+
+        //Remember to send packet to server if necessary
+        //Show Modifier Settings GUI
+        if (keyBindings[0].isPressed()) {
+            openModifierSettings();
+        }
+
+        //QuickReplace toggle
+        if (keyBindings[1].isPressed()) {
+            ModifierSettingsManager.ModifierSettings modifierSettings = ModifierSettingsManager.getModifierSettings(player);
+            modifierSettings.setQuickReplace(!modifierSettings.doQuickReplace());
+            EffortlessBuilding.log(player, "Set " + TextFormatting.GOLD + "Quick Replace " + TextFormatting.RESET + (
+                    modifierSettings.doQuickReplace() ? "on" : "off"));
+            PacketHandler.INSTANCE.sendToServer(new ModifierSettingsMessage(modifierSettings));
+        }
+
+        //Creative/survival mode toggle
+        if (keyBindings[2].isPressed()) {
+            if (player.isCreative()) {
+                player.sendChatMessage("/gamemode survival");
+            } else {
+                player.sendChatMessage("/gamemode creative");
+            }
+        }
+
+        //Undo (Ctrl+Z)
+        if (keyBindings[4].isPressed()) {
+            ModeOptions.ActionEnum action = ModeOptions.ActionEnum.UNDO;
+            ModeOptions.performAction(player, action);
+            PacketHandler.INSTANCE.sendToServer(new ModeActionMessage(action));
+        }
+
+        //Redo (Ctrl+Y)
+        if (keyBindings[5].isPressed()) {
+            ModeOptions.ActionEnum action = ModeOptions.ActionEnum.REDO;
+            ModeOptions.performAction(player, action);
+            PacketHandler.INSTANCE.sendToServer(new ModeActionMessage(action));
+        }
+
+        //Change placement mode
+        if (keyBindings[6].isPressed()) {
+            //Toggle between first two actions of the first option of the current build mode
+            BuildModes.BuildModeEnum currentBuildMode = ModeSettingsManager.getModeSettings(player).getBuildMode();
+            if (currentBuildMode.options.length > 0) {
+                ModeOptions.OptionEnum option = currentBuildMode.options[0];
+                if (option.actions.length >= 2) {
+                    if (ModeOptions.getOptionSetting(option) == option.actions[0]) {
+                        ModeOptions.performAction(player, option.actions[1]);
+                        PacketHandler.INSTANCE.sendToServer(new ModeActionMessage(option.actions[1]));
+                    } else {
+                        ModeOptions.performAction(player, option.actions[0]);
+                        PacketHandler.INSTANCE.sendToServer(new ModeActionMessage(option.actions[0]));
+                    }
+                }
+            }
+        }
+
+        //For shader development
+        if (keyBindings.length >= 8 && keyBindings[7].isPressed()) {
+            ShaderHandler.init();
+            EffortlessBuilding.log(player, "Reloaded shaders");
+        }
+
+    }
+
+    public static void openModifierSettings() {
+        Minecraft mc = Minecraft.getInstance();
+        ClientPlayerEntity player = mc.player;
+
+        RadialMenu.instance.setVisibility(0f);
+
+        //Disabled if max reach is 0, might be set in the config that way.
+        if (ReachHelper.getMaxReach(player) == 0) {
+            EffortlessBuilding.log(player, "Build modifiers are disabled until your reach has increased. Increase your reach with craftable reach upgrades.");
+        } else {
+            if (mc.currentScreen == null) {
+                mc.displayGuiScreen(new ModifierSettingsGui());
+            } else {
+                player.closeScreen();
+            }
+        }
+    }
+
+    @SubscribeEvent
+    public static void onGuiOpen(GuiOpenEvent event) {
+        PlayerEntity player = Minecraft.getInstance().player;
+        if (player != null) {
+            BuildModes.initializeMode(player);
+        }
+    }
+
+    @Nullable
+    public static RayTraceResult getLookingAt(PlayerEntity player) {
+        World world = player.world;
+
+        //base distance off of player ability (config)
+        float raytraceRange = ReachHelper.getPlacementReach(player);
+
+        Vec3d look = player.getLookVec();
+        Vec3d start = new Vec3d(player.posX, player.posY + player.getEyeHeight(), player.posZ);
+        Vec3d end = new Vec3d(player.posX + look.x * raytraceRange, player.posY + player.getEyeHeight() + look.y * raytraceRange, player.posZ + look.z * raytraceRange);
+//        return player.rayTrace(raytraceRange, 1f, RayTraceFluidMode.NEVER);
+        //TODO 1.14 check if correct
+        return world.rayTraceBlocks(new RayTraceContext(start, end, RayTraceContext.BlockMode.COLLIDER, RayTraceContext.FluidMode.NONE, player));
+    }
+
+    @Override
+    public void logTranslate(PlayerEntity player, String prefix, String translationKey, String suffix, boolean actionBar) {
+        EffortlessBuilding.log(Minecraft.getInstance().player, prefix + I18n.format(translationKey) + suffix, actionBar);
+    }
 }

src/main/java/nl/requios/effortlessbuilding/proxy/IProxy.java

@@ -1,43 +1,18 @@
 package nl.requios.effortlessbuilding.proxy;
 
-import net.minecraft.entity.player.EntityPlayer;
-import net.minecraft.util.IThreadListener;
-import net.minecraftforge.fml.common.event.FMLInitializationEvent;
-import net.minecraftforge.fml.common.event.FMLPostInitializationEvent;
-import net.minecraftforge.fml.common.event.FMLPreInitializationEvent;
-import net.minecraftforge.fml.common.event.FMLServerStartingEvent;
-import net.minecraftforge.fml.common.network.simpleimpl.MessageContext;
+import net.minecraft.entity.player.PlayerEntity;
+import net.minecraftforge.fml.event.lifecycle.FMLClientSetupEvent;
+import net.minecraftforge.fml.event.lifecycle.FMLCommonSetupEvent;
+import net.minecraftforge.fml.network.NetworkEvent;
 
-public interface IProxy
-{
-    /**
-     * Register entities and networking.
-     */
-    void preInit(FMLPreInitializationEvent event);
+import java.util.function.Supplier;
 
-    /**
-     * Register event listeners, recipes and advancements.
-     */
-    void init(FMLInitializationEvent event);
+public interface IProxy {
+    void setup(final FMLCommonSetupEvent event);
 
-    /**
-     * For doing inter-mod stuff like checking which mods are loaded or if you want a complete view of things across
-     * mods like having a list of all registered items to aid random item generation.
-     */
-    void postInit(FMLPostInitializationEvent event);
+    void clientSetup(final FMLClientSetupEvent event);
 
-    /**
-     * Server commands should be registered here.
-     */
-    void serverStarting(FMLServerStartingEvent event);
+    PlayerEntity getPlayerEntityFromContext(Supplier<NetworkEvent.Context> ctx);
 
-    /**
-     * Returns a side-appropriate EntityPlayer for use during message handling.
-     *
-     * @param ctx the context
-     * @return the player entity from context
-     */
-    EntityPlayer getPlayerEntityFromContext(MessageContext ctx);
-
-    IThreadListener getThreadListenerFromContext(MessageContext ctx);
+    void logTranslate(PlayerEntity player, String prefix, String translationKey, String suffix, boolean actionBar);
 }

src/main/java/nl/requios/effortlessbuilding/proxy/ServerProxy.java

@@ -1,51 +1,32 @@
 package nl.requios.effortlessbuilding.proxy;
 
-import net.minecraft.client.entity.AbstractClientPlayer;
-import net.minecraft.entity.player.EntityPlayer;
-import net.minecraft.entity.player.EntityPlayerMP;
-import net.minecraft.util.IThreadListener;
-import net.minecraftforge.fml.common.event.FMLInitializationEvent;
-import net.minecraftforge.fml.common.event.FMLPostInitializationEvent;
-import net.minecraftforge.fml.common.event.FMLPreInitializationEvent;
-import net.minecraftforge.fml.common.event.FMLServerStartingEvent;
-import net.minecraftforge.fml.common.network.simpleimpl.MessageContext;
-import net.minecraftforge.fml.relauncher.Side;
-import nl.requios.effortlessbuilding.EffortlessBuilding;
-import nl.requios.effortlessbuilding.network.BuildSettingsMessage;
-import nl.requios.effortlessbuilding.network.QuickReplaceMessage;
+import net.minecraft.entity.player.PlayerEntity;
+import net.minecraft.entity.player.ServerPlayerEntity;
+import net.minecraftforge.fml.event.lifecycle.FMLClientSetupEvent;
+import net.minecraftforge.fml.event.lifecycle.FMLCommonSetupEvent;
+import net.minecraftforge.fml.network.NetworkEvent;
+import net.minecraftforge.fml.network.PacketDistributor;
+import nl.requios.effortlessbuilding.network.PacketHandler;
+import nl.requios.effortlessbuilding.network.TranslatedLogMessage;
 
-public class ServerProxy implements IProxy
-{
+import java.util.function.Supplier;
+
+public class ServerProxy implements IProxy {
     //Only physical server! Singleplayer server is seen as clientproxy
     @Override
-    public void preInit(FMLPreInitializationEvent event)
-    {
+    public void setup(FMLCommonSetupEvent event) {
+
     }
 
     @Override
-    public void init(FMLInitializationEvent event)
-    {
+    public void clientSetup(FMLClientSetupEvent event) {}
+
+    public PlayerEntity getPlayerEntityFromContext(Supplier<NetworkEvent.Context> ctx){
+        return ctx.get().getSender();
     }
 
     @Override
-    public void postInit(FMLPostInitializationEvent event)
-    {
-    }
-
-    @Override
-    public void serverStarting(FMLServerStartingEvent event)
-    {
-        //event.registerServerCommand(new CommandStructureCapture());
-    }
-
-    @Override
-    public EntityPlayer getPlayerEntityFromContext(MessageContext ctx)
-    {
-        return ctx.getServerHandler().player;
-    }
-
-    @Override
-    public IThreadListener getThreadListenerFromContext(MessageContext ctx) {
-        return ((EntityPlayerMP) getPlayerEntityFromContext(ctx)).getServerWorld();
+    public void logTranslate(PlayerEntity player, String prefix, String translationKey, String suffix, boolean actionBar) {
+        PacketHandler.INSTANCE.send(PacketDistributor.PLAYER.with(() -> (ServerPlayerEntity) player), new TranslatedLogMessage(prefix, translationKey, suffix, actionBar));
     }
 }

src/main/java/nl/requios/effortlessbuilding/render/BlockPreviewRenderer.java

@@ -0,0 +1,444 @@
+package nl.requios.effortlessbuilding.render;
+
+import com.mojang.blaze3d.platform.GlStateManager;
+import net.minecraft.block.BlockState;
+import net.minecraft.block.SoundType;
+import net.minecraft.client.Minecraft;
+import net.minecraft.client.entity.player.ClientPlayerEntity;
+import net.minecraft.client.renderer.BlockRendererDispatcher;
+import net.minecraft.client.renderer.texture.AtlasTexture;
+import net.minecraft.entity.player.PlayerEntity;
+import net.minecraft.item.ItemStack;
+import net.minecraft.util.Direction;
+import net.minecraft.util.SoundCategory;
+import net.minecraft.util.math.*;
+import net.minecraft.util.math.shapes.VoxelShape;
+import net.minecraftforge.api.distmarker.Dist;
+import net.minecraftforge.api.distmarker.OnlyIn;
+import nl.requios.effortlessbuilding.BuildConfig;
+import nl.requios.effortlessbuilding.EffortlessBuilding;
+import nl.requios.effortlessbuilding.buildmode.BuildModes;
+import nl.requios.effortlessbuilding.buildmode.IBuildMode;
+import nl.requios.effortlessbuilding.buildmode.ModeSettingsManager;
+import nl.requios.effortlessbuilding.buildmode.ModeSettingsManager.ModeSettings;
+import nl.requios.effortlessbuilding.buildmodifier.BuildModifiers;
+import nl.requios.effortlessbuilding.buildmodifier.ModifierSettingsManager;
+import nl.requios.effortlessbuilding.buildmodifier.ModifierSettingsManager.ModifierSettings;
+import nl.requios.effortlessbuilding.compatibility.CompatHelper;
+import nl.requios.effortlessbuilding.helper.ReachHelper;
+import nl.requios.effortlessbuilding.helper.SurvivalHelper;
+import nl.requios.effortlessbuilding.item.ItemRandomizerBag;
+import nl.requios.effortlessbuilding.proxy.ClientProxy;
+import org.lwjgl.opengl.*;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+import java.util.function.Consumer;
+
+@OnlyIn(Dist.CLIENT)
+public class BlockPreviewRenderer {
+    private static List<BlockPos> previousCoordinates;
+    private static List<BlockState> previousBlockStates;
+    private static List<ItemStack> previousItemStacks;
+    private static BlockPos previousFirstPos;
+    private static BlockPos previousSecondPos;
+    private static int soundTime = 0;
+
+    static class PlacedData {
+        float time;
+        List<BlockPos> coordinates;
+        List<BlockState> blockStates;
+        List<ItemStack> itemStacks;
+        BlockPos firstPos;
+        BlockPos secondPos;
+        boolean breaking;
+
+        public PlacedData(float time, List<BlockPos> coordinates, List<BlockState> blockStates,
+                          List<ItemStack> itemStacks, BlockPos firstPos, BlockPos secondPos, boolean breaking) {
+            this.time = time;
+            this.coordinates = coordinates;
+            this.blockStates = blockStates;
+            this.itemStacks = itemStacks;
+            this.firstPos = firstPos;
+            this.secondPos = secondPos;
+            this.breaking = breaking;
+        }
+    }
+
+    private static List<PlacedData> placedDataList = new ArrayList<>();
+
+    private static final int primaryTextureUnit = 0;
+    private static final int secondaryTextureUnit = 2;
+
+    public static void render(PlayerEntity player, ModifierSettings modifierSettings, ModeSettings modeSettings) {
+
+        //Render placed blocks with dissolve effect
+        //Use fancy shader if config allows, otherwise no dissolve
+        if (BuildConfig.visuals.useShaders.get()) {
+            RenderHandler.beginBlockPreviews();
+            for (int i = 0; i < placedDataList.size(); i++) {
+                PlacedData placed = placedDataList.get(i);
+                if (placed.coordinates != null && !placed.coordinates.isEmpty()) {
+
+                    double totalTime = MathHelper.clampedLerp(30, 60, placed.firstPos.distanceSq(placed.secondPos) / 100.0) * BuildConfig.visuals.dissolveTimeMultiplier.get();
+                    float dissolve = (ClientProxy.ticksInGame - placed.time) / (float) totalTime;
+                    renderBlockPreviews(placed.coordinates, placed.blockStates, placed.itemStacks, dissolve, placed.firstPos, placed.secondPos, false, placed.breaking);
+                }
+            }
+            RenderHandler.endBlockPreviews();
+        }
+        //Expire
+        placedDataList.removeIf(placed -> {
+            double totalTime = MathHelper.clampedLerp(30, 60, placed.firstPos.distanceSq(placed.secondPos) / 100.0) * BuildConfig.visuals.dissolveTimeMultiplier.get();
+            return placed.time + totalTime < ClientProxy.ticksInGame;
+        });
+
+        //Render block previews
+        RayTraceResult lookingAt = ClientProxy.getLookingAt(player);
+        if (modeSettings.getBuildMode() == BuildModes.BuildModeEnum.NORMAL) lookingAt = Minecraft.getInstance().objectMouseOver;
+
+        ItemStack mainhand = player.getHeldItemMainhand();
+        boolean toolInHand = !(!mainhand.isEmpty() && CompatHelper.isItemBlockProxy(mainhand));
+
+        BlockPos startPos = null;
+        Direction sideHit = null;
+        Vec3d hitVec = null;
+
+        //Checking for null is necessary! Even in vanilla when looking down ladders it is occasionally null (instead of Type MISS)
+        if (lookingAt != null && lookingAt.getType() == RayTraceResult.Type.BLOCK) {
+            BlockRayTraceResult blockLookingAt = (BlockRayTraceResult) lookingAt;
+            startPos = blockLookingAt.getPos();
+
+            //Check if tool (or none) in hand
+            //TODO 1.13 replaceable
+            boolean replaceable = player.world.getBlockState(startPos).getBlock().getMaterial(player.world.getBlockState(startPos)).isReplaceable();
+            boolean becomesDoubleSlab = SurvivalHelper.doesBecomeDoubleSlab(player, startPos, blockLookingAt.getFace());
+            if (!modifierSettings.doQuickReplace() && !toolInHand && !replaceable && !becomesDoubleSlab) {
+                startPos = startPos.offset(blockLookingAt.getFace());
+            }
+
+            //Get under tall grass and other replaceable blocks
+            if (modifierSettings.doQuickReplace() && !toolInHand && replaceable) {
+                startPos = startPos.down();
+            }
+
+            sideHit = blockLookingAt.getFace();
+            hitVec = blockLookingAt.getHitVec();
+        }
+
+        //Dont render if in normal mode and modifiers are disabled
+        //Unless alwaysShowBlockPreview is true in config
+        if (doRenderBlockPreviews(modifierSettings, modeSettings, startPos)) {
+
+            //Keep blockstate the same for every block in the buildmode
+            //So dont rotate blocks when in the middle of placing wall etc.
+            if (BuildModes.isActive(player)) {
+                IBuildMode buildModeInstance = modeSettings.getBuildMode().instance;
+                if (buildModeInstance.getSideHit(player) != null) sideHit = buildModeInstance.getSideHit(player);
+                if (buildModeInstance.getHitVec(player) != null) hitVec = buildModeInstance.getHitVec(player);
+            }
+
+            if (sideHit != null) {
+
+                //Should be red?
+                boolean breaking = BuildModes.currentlyBreakingClient.get(player) != null && BuildModes.currentlyBreakingClient.get(player);
+
+                //get coordinates
+                List<BlockPos> startCoordinates = BuildModes.findCoordinates(player, startPos, breaking || modifierSettings.doQuickReplace());
+
+                //Remember first and last point for the shader
+                BlockPos firstPos = BlockPos.ZERO, secondPos = BlockPos.ZERO;
+                if (!startCoordinates.isEmpty()) {
+                    firstPos = startCoordinates.get(0);
+                    secondPos = startCoordinates.get(startCoordinates.size() - 1);
+                }
+
+                //Limit number of blocks you can place
+                int limit = ReachHelper.getMaxBlocksPlacedAtOnce(player);
+                if (startCoordinates.size() > limit) {
+                    startCoordinates = startCoordinates.subList(0, limit);
+                }
+
+                List<BlockPos> newCoordinates = BuildModifiers.findCoordinates(player, startCoordinates);
+
+                sortOnDistanceToPlayer(newCoordinates, player);
+
+                hitVec = new Vec3d(Math.abs(hitVec.x - ((int) hitVec.x)), Math.abs(hitVec.y - ((int) hitVec.y)),
+                        Math.abs(hitVec.z - ((int) hitVec.z)));
+
+                //Get blockstates
+                List<ItemStack> itemStacks = new ArrayList<>();
+                List<BlockState> blockStates = new ArrayList<>();
+                if (breaking) {
+                    //Find blockstate of world
+                    for (BlockPos coordinate : newCoordinates) {
+                        blockStates.add(player.world.getBlockState(coordinate));
+                    }
+                } else {
+                    blockStates = BuildModifiers.findBlockStates(player, startCoordinates, hitVec, sideHit, itemStacks);
+                }
+
+
+                //Check if they are different from previous
+                //TODO fix triggering when moving player
+                if (!BuildModifiers.compareCoordinates(previousCoordinates, newCoordinates)) {
+                    previousCoordinates = newCoordinates;
+                    //remember the rest for placed blocks
+                    previousBlockStates = blockStates;
+                    previousItemStacks = itemStacks;
+                    previousFirstPos = firstPos;
+                    previousSecondPos = secondPos;
+
+                    //if so, renew randomness of randomizer bag
+                    ItemRandomizerBag.renewRandomness();
+                    //and play sound (max once every tick)
+                    if (newCoordinates.size() > 1 && blockStates.size() > 1 && soundTime < ClientProxy.ticksInGame - 0) {
+                        soundTime = ClientProxy.ticksInGame;
+
+                        if (blockStates.get(0) != null) {
+                            SoundType soundType = blockStates.get(0).getBlock().getSoundType(blockStates.get(0), player.world,
+                                    newCoordinates.get(0), player);
+                            player.world.playSound(player, player.getPosition(), breaking ? soundType.getBreakSound() : soundType.getPlaceSound(),
+                                    SoundCategory.BLOCKS, 0.3f, 0.8f);
+                        }
+                    }
+                }
+
+                //Render block previews
+                if (blockStates.size() != 0 && newCoordinates.size() == blockStates.size()) {
+                    int blockCount;
+
+                    //Use fancy shader if config allows, otherwise outlines
+                    if (BuildConfig.visuals.useShaders.get() && newCoordinates.size() < BuildConfig.visuals.shaderTreshold.get()) {
+
+                        RenderHandler.beginBlockPreviews();
+
+                        blockCount = renderBlockPreviews(newCoordinates, blockStates, itemStacks, 0f, firstPos, secondPos, !breaking, breaking);
+
+                        RenderHandler.endBlockPreviews();
+                    } else {
+
+                        RenderHandler.beginLines();
+
+                        Vec3d color = new Vec3d(1f, 1f, 1f);
+                        if (breaking) color = new Vec3d(1f, 0f, 0f);
+
+                        for (int i = newCoordinates.size() - 1; i >= 0; i--) {
+                            VoxelShape collisionShape = blockStates.get(i).getCollisionShape(player.world, newCoordinates.get(i));
+                            RenderHandler.renderBlockOutline(newCoordinates.get(i), collisionShape, color);
+                        }
+
+                        RenderHandler.endLines();
+
+                        blockCount = newCoordinates.size();
+                    }
+
+                    //Display block count and dimensions in actionbar
+                    if (BuildModes.isActive(player)) {
+
+                        //Find min and max values (not simply firstPos and secondPos because that doesn't work with circles)
+                        int minX = Integer.MAX_VALUE, maxX = Integer.MIN_VALUE;
+                        int minY = Integer.MAX_VALUE, maxY = Integer.MIN_VALUE;
+                        int minZ = Integer.MAX_VALUE, maxZ = Integer.MIN_VALUE;
+                        for (BlockPos pos : startCoordinates) {
+                            if (pos.getX() < minX) minX = pos.getX();
+                            if (pos.getX() > maxX) maxX = pos.getX();
+                            if (pos.getY() < minY) minY = pos.getY();
+                            if (pos.getY() > maxY) maxY = pos.getY();
+                            if (pos.getZ() < minZ) minZ = pos.getZ();
+                            if (pos.getZ() > maxZ) maxZ = pos.getZ();
+                        }
+                        BlockPos dim = new BlockPos(maxX - minX + 1, maxY - minY + 1, maxZ - minZ + 1);
+
+                        String dimensions = "(";
+                        if (dim.getX() > 1) dimensions += dim.getX() + "x";
+                        if (dim.getZ() > 1) dimensions += dim.getZ() + "x";
+                        if (dim.getY() > 1) dimensions += dim.getY() + "x";
+                        dimensions = dimensions.substring(0, dimensions.length() - 1);
+                        if (dimensions.length() > 1) dimensions += ")";
+
+                        EffortlessBuilding.log(player, blockCount + " blocks " + dimensions, true);
+                    }
+                }
+
+
+            }
+
+            RenderHandler.beginLines();
+            //Draw outlines if tool in hand
+            //Find proper raytrace: either normal range or increased range depending on canBreakFar
+            RayTraceResult objectMouseOver = Minecraft.getInstance().objectMouseOver;
+            RayTraceResult breakingRaytrace = ReachHelper.canBreakFar(player) ? lookingAt : objectMouseOver;
+            if (toolInHand && breakingRaytrace != null && breakingRaytrace.getType() == RayTraceResult.Type.BLOCK) {
+                BlockRayTraceResult blockBreakingRaytrace = (BlockRayTraceResult) breakingRaytrace;
+                List<BlockPos> breakCoordinates = BuildModifiers.findCoordinates(player, blockBreakingRaytrace.getPos());
+
+                //Only render first outline if further than normal reach
+                boolean excludeFirst = objectMouseOver != null && objectMouseOver.getType() == RayTraceResult.Type.BLOCK;
+                for (int i = excludeFirst ? 1 : 0; i < breakCoordinates.size(); i++) {
+                    BlockPos coordinate = breakCoordinates.get(i);
+
+                    BlockState blockState = player.world.getBlockState(coordinate);
+                    if (!blockState.getBlock().isAir(blockState, player.world, coordinate)) {
+                        if (SurvivalHelper.canBreak(player.world, player, coordinate) || i == 0) {
+                            VoxelShape collisionShape = blockState.getCollisionShape(player.world, coordinate);
+                            RenderHandler.renderBlockOutline(coordinate, collisionShape, new Vec3d(0f, 0f, 0f));
+                        }
+                    }
+                }
+            }
+            RenderHandler.endLines();
+        }
+    }
+
+    //Whether to draw any block previews or outlines
+    public static boolean doRenderBlockPreviews(ModifierSettings modifierSettings, ModeSettings modeSettings, BlockPos startPos) {
+        return modeSettings.getBuildMode() != BuildModes.BuildModeEnum.NORMAL ||
+               (startPos != null && BuildModifiers.isEnabled(modifierSettings, startPos)) ||
+               BuildConfig.visuals.alwaysShowBlockPreview.get();
+    }
+
+    protected static int renderBlockPreviews(List<BlockPos> coordinates, List<BlockState> blockStates,
+                                              List<ItemStack> itemStacks, float dissolve, BlockPos firstPos,
+                                              BlockPos secondPos, boolean checkCanPlace, boolean red) {
+        PlayerEntity player = Minecraft.getInstance().player;
+        ModifierSettings modifierSettings = ModifierSettingsManager.getModifierSettings(player);
+        BlockRendererDispatcher dispatcher = Minecraft.getInstance().getBlockRendererDispatcher();
+        int blocksValid = 0;
+
+        if (coordinates.isEmpty()) return blocksValid;
+
+        for (int i = coordinates.size() - 1; i >= 0; i--) {
+            BlockPos blockPos = coordinates.get(i);
+            BlockState blockState = blockStates.get(i);
+            ItemStack itemstack = itemStacks.isEmpty() ? ItemStack.EMPTY : itemStacks.get(i);
+            if (CompatHelper.isItemBlockProxy(itemstack))
+                itemstack = CompatHelper.getItemBlockByState(itemstack, blockState);
+
+            //Check if can place
+            //If check is turned off, check if blockstate is the same (for dissolve effect)
+            if ((!checkCanPlace /*&& player.world.getNewBlockState(blockPos) == blockState*/) || //TODO enable (breaks breaking shader)
+                SurvivalHelper.canPlace(player.world, player, blockPos, blockState, itemstack, modifierSettings.doQuickReplace(), Direction.UP)) {
+
+                ShaderHandler.useShader(ShaderHandler.dissolve, generateShaderCallback(dissolve,
+                        new Vec3d(blockPos), new Vec3d(firstPos), new Vec3d(secondPos),
+                        blockPos == secondPos, red));
+                RenderHandler.renderBlockPreview(dispatcher, blockPos, blockState);
+                blocksValid++;
+            }
+        }
+        return blocksValid;
+    }
+
+    public static void onBlocksPlaced() {
+        onBlocksPlaced(previousCoordinates, previousItemStacks, previousBlockStates, previousFirstPos, previousSecondPos);
+    }
+
+    public static void onBlocksPlaced(List<BlockPos> coordinates, List<ItemStack> itemStacks, List<BlockState> blockStates,
+                                      BlockPos firstPos, BlockPos secondPos) {
+        ClientPlayerEntity player = Minecraft.getInstance().player;
+        ModifierSettings modifierSettings = ModifierSettingsManager.getModifierSettings(player);
+        ModeSettings modeSettings = ModeSettingsManager.getModeSettings(player);
+
+        //Check if block previews are enabled
+        if (doRenderBlockPreviews(modifierSettings, modeSettings, firstPos)) {
+
+            //Save current coordinates, blockstates and itemstacks
+            if (!coordinates.isEmpty() && blockStates.size() == coordinates.size() &&
+                coordinates.size() > 1 && coordinates.size() < BuildConfig.visuals.shaderTreshold.get()) {
+
+                placedDataList.add(new PlacedData(ClientProxy.ticksInGame, coordinates, blockStates,
+                        itemStacks, firstPos, secondPos, false));
+            }
+        }
+
+    }
+
+    public static void onBlocksBroken() {
+        onBlocksBroken(previousCoordinates, previousItemStacks, previousBlockStates, previousFirstPos, previousSecondPos);
+    }
+
+    public static void onBlocksBroken(List<BlockPos> coordinates, List<ItemStack> itemStacks, List<BlockState> blockStates,
+                                      BlockPos firstPos, BlockPos secondPos) {
+        ClientPlayerEntity player = Minecraft.getInstance().player;
+        ModifierSettings modifierSettings = ModifierSettingsManager.getModifierSettings(player);
+        ModeSettings modeSettings = ModeSettingsManager.getModeSettings(player);
+
+        //Check if block previews are enabled
+        if (doRenderBlockPreviews(modifierSettings, modeSettings, firstPos)) {
+
+            //Save current coordinates, blockstates and itemstacks
+            if (!coordinates.isEmpty() && blockStates.size() == coordinates.size() &&
+                coordinates.size() > 1 && coordinates.size() < BuildConfig.visuals.shaderTreshold.get()) {
+
+                sortOnDistanceToPlayer(coordinates, player);
+
+                placedDataList.add(new PlacedData(ClientProxy.ticksInGame, coordinates, blockStates,
+                        itemStacks, firstPos, secondPos, true));
+            }
+        }
+
+    }
+
+    private static Consumer<Integer> generateShaderCallback(final float dissolve, final Vec3d blockpos,
+                                                            final Vec3d firstpos, final Vec3d secondpos,
+                                                            final boolean highlight, final boolean red) {
+        Minecraft mc = Minecraft.getInstance();
+        return (Integer shader) -> {
+            int percentileUniform = ARBShaderObjects.glGetUniformLocationARB(shader, "dissolve");
+            int highlightUniform = ARBShaderObjects.glGetUniformLocationARB(shader, "highlight");
+            int redUniform = ARBShaderObjects.glGetUniformLocationARB(shader, "red");
+            int blockposUniform = ARBShaderObjects.glGetUniformLocationARB(shader, "blockpos");
+            int firstposUniform = ARBShaderObjects.glGetUniformLocationARB(shader, "firstpos");
+            int secondposUniform = ARBShaderObjects.glGetUniformLocationARB(shader, "secondpos");
+            int imageUniform = ARBShaderObjects.glGetUniformLocationARB(shader, "image");
+            int maskUniform = ARBShaderObjects.glGetUniformLocationARB(shader, "mask");
+
+            GlStateManager.enableTexture();
+            GL11.glGetInteger(GL11.GL_TEXTURE_BINDING_2D);
+
+            //mask
+            ARBShaderObjects.glUniform1iARB(maskUniform, secondaryTextureUnit);
+            glActiveTexture(ARBMultitexture.GL_TEXTURE0_ARB + secondaryTextureUnit);
+            GL11.glBindTexture(GL11.GL_TEXTURE_2D, mc.getTextureManager().getTexture(ShaderHandler.shaderMaskTextureLocation).getGlTextureId());
+
+            //image
+            ARBShaderObjects.glUniform1iARB(imageUniform, primaryTextureUnit);
+            glActiveTexture(ARBMultitexture.GL_TEXTURE0_ARB + primaryTextureUnit);
+            GL11.glBindTexture(GL11.GL_TEXTURE_2D, mc.getTextureManager().getTexture(AtlasTexture.LOCATION_BLOCKS_TEXTURE).getGlTextureId());
+
+            //blockpos
+            ARBShaderObjects.glUniform3fARB(blockposUniform, (float) blockpos.x, (float) blockpos.y, (float) blockpos.z);
+            ARBShaderObjects.glUniform3fARB(firstposUniform, (float) firstpos.x, (float) firstpos.y, (float) firstpos.z);
+            ARBShaderObjects.glUniform3fARB(secondposUniform, (float) secondpos.x, (float) secondpos.y, (float) secondpos.z);
+
+            //dissolve
+            ARBShaderObjects.glUniform1fARB(percentileUniform, dissolve);
+            //highlight
+            ARBShaderObjects.glUniform1iARB(highlightUniform, highlight ? 1 : 0);
+            //red
+            ARBShaderObjects.glUniform1iARB(redUniform, red ? 1 : 0);
+        };
+    }
+
+    public static void glActiveTexture(int texture) {
+        if (GL.getCapabilities().GL_ARB_multitexture && !GL.getCapabilities().OpenGL13) {
+            ARBMultitexture.glActiveTextureARB(texture);
+        } else {
+            GL13.glActiveTexture(texture);
+        }
+
+    }
+
+    private static void sortOnDistanceToPlayer(List<BlockPos> coordinates, PlayerEntity player) {
+
+        Collections.sort(coordinates, (lhs, rhs) -> {
+            // -1 - less than, 1 - greater than, 0 - equal
+            double lhsDistanceToPlayer = new Vec3d(lhs).subtract(player.getEyePosition(1f)).lengthSquared();
+            double rhsDistanceToPlayer = new Vec3d(rhs).subtract(player.getEyePosition(1f)).lengthSquared();
+            return (int) Math.signum(lhsDistanceToPlayer - rhsDistanceToPlayer);
+        });
+
+    }
+}

src/main/java/nl/requios/effortlessbuilding/render/ModifierRenderer.java

@@ -0,0 +1,176 @@
+package nl.requios.effortlessbuilding.render;
+
+import net.minecraft.client.renderer.BufferBuilder;
+import net.minecraft.client.renderer.Tessellator;
+import net.minecraft.client.renderer.vertex.DefaultVertexFormats;
+import net.minecraft.util.math.Vec3d;
+import net.minecraftforge.api.distmarker.Dist;
+import net.minecraftforge.api.distmarker.OnlyIn;
+import nl.requios.effortlessbuilding.buildmodifier.Mirror;
+import nl.requios.effortlessbuilding.buildmodifier.ModifierSettingsManager;
+import nl.requios.effortlessbuilding.buildmodifier.RadialMirror;
+import org.lwjgl.opengl.GL11;
+
+import java.awt.*;
+
+@OnlyIn(Dist.CLIENT)
+public class ModifierRenderer {
+
+    protected static final Color colorX = new Color(255, 72, 52);
+    protected static final Color colorY = new Color(67, 204, 51);
+    protected static final Color colorZ = new Color(52, 247, 255);
+    protected static final Color colorRadial = new Color(52, 247, 255);
+    protected static final int lineAlpha = 200;
+    protected static final int planeAlpha = 75;
+    protected static final Vec3d epsilon = new Vec3d(0.001, 0.001, 0.001); //prevents z-fighting
+
+    public static void render(ModifierSettingsManager.ModifierSettings modifierSettings) {
+        RenderHandler.beginLines();
+
+        //Mirror lines and areas
+        Mirror.MirrorSettings m = modifierSettings.getMirrorSettings();
+        if (m != null && m.enabled && (m.mirrorX || m.mirrorY || m.mirrorZ))
+        {
+            Vec3d pos = m.position.add(epsilon);
+            int radius = m.radius;
+
+            if (m.mirrorX)
+            {
+                Vec3d posA = new Vec3d(pos.x, pos.y - radius, pos.z - radius);
+                Vec3d posB = new Vec3d(pos.x, pos.y + radius, pos.z + radius);
+
+                drawMirrorPlane(posA, posB, colorX, m.drawLines, m.drawPlanes, true);
+            }
+            if (m.mirrorY)
+            {
+                Vec3d posA = new Vec3d(pos.x - radius, pos.y, pos.z - radius);
+                Vec3d posB = new Vec3d(pos.x + radius, pos.y, pos.z + radius);
+
+                drawMirrorPlaneY(posA, posB, colorY, m.drawLines, m.drawPlanes);
+            }
+            if (m.mirrorZ)
+            {
+                Vec3d posA = new Vec3d(pos.x - radius, pos.y - radius, pos.z);
+                Vec3d posB = new Vec3d(pos.x + radius, pos.y + radius, pos.z);
+
+                drawMirrorPlane(posA, posB, colorZ, m.drawLines, m.drawPlanes, true);
+            }
+
+            //Draw axis coordinated colors if two or more axes are enabled
+            //(If only one is enabled the lines are that planes color)
+            if (m.drawLines && ((m.mirrorX && m.mirrorY) || (m.mirrorX && m.mirrorZ) || (m.mirrorY && m.mirrorZ)))
+            {
+                drawMirrorLines(m);
+            }
+        }
+
+        //Radial mirror lines and areas
+        RadialMirror.RadialMirrorSettings r = modifierSettings.getRadialMirrorSettings();
+        if (r != null && r.enabled)
+        {
+            Vec3d pos = r.position.add(epsilon);
+            int radius = r.radius;
+
+            float angle = 2f * ((float) Math.PI) / r.slices;
+            Vec3d relStartVec = new Vec3d(radius, 0, 0);
+            if (r.slices%4 == 2) relStartVec = relStartVec.rotateYaw(angle / 2f);
+
+            for (int i = 0; i < r.slices; i++) {
+                Vec3d relNewVec = relStartVec.rotateYaw(angle * i);
+                Vec3d newVec = pos.add(relNewVec);
+
+                Vec3d posA = new Vec3d(pos.x, pos.y - radius, pos.z);
+                Vec3d posB = new Vec3d(newVec.x, pos.y + radius, newVec.z);
+                drawMirrorPlane(posA, posB, colorRadial, r.drawLines, r.drawPlanes, false);
+            }
+        }
+
+        RenderHandler.endLines();
+    }
+
+
+    //----Mirror----
+
+    protected static void drawMirrorPlane(Vec3d posA, Vec3d posB, Color c, boolean drawLines, boolean drawPlanes, boolean drawVerticalLines) {
+
+        GL11.glColor4d(c.getRed(), c.getGreen(), c.getBlue(), planeAlpha);
+        Tessellator tessellator = Tessellator.getInstance();
+        BufferBuilder bufferBuilder = tessellator.getBuffer();
+
+        if (drawPlanes) {
+            bufferBuilder.begin(GL11.GL_TRIANGLE_STRIP, DefaultVertexFormats.POSITION_COLOR);
+
+            bufferBuilder.pos(posA.x, posA.y, posA.z).color(c.getRed(), c.getGreen(), c.getBlue(), planeAlpha).endVertex();
+            bufferBuilder.pos(posA.x, posB.y, posA.z).color(c.getRed(), c.getGreen(), c.getBlue(), planeAlpha).endVertex();
+            bufferBuilder.pos(posB.x, posA.y, posB.z).color(c.getRed(), c.getGreen(), c.getBlue(), planeAlpha).endVertex();
+            bufferBuilder.pos(posB.x, posB.y, posB.z).color(c.getRed(), c.getGreen(), c.getBlue(), planeAlpha).endVertex();
+
+            tessellator.draw();
+        }
+
+        if (drawLines) {
+            Vec3d middle = posA.add(posB).scale(0.5);
+            bufferBuilder.begin(GL11.GL_LINES, DefaultVertexFormats.POSITION_COLOR);
+
+            bufferBuilder.pos(posA.x, middle.y, posA.z).color(c.getRed(), c.getGreen(), c.getBlue(), lineAlpha).endVertex();
+            bufferBuilder.pos(posB.x, middle.y, posB.z).color(c.getRed(), c.getGreen(), c.getBlue(), lineAlpha).endVertex();
+            if (drawVerticalLines) {
+                bufferBuilder.pos(middle.x, posA.y, middle.z).color(c.getRed(), c.getGreen(), c.getBlue(), lineAlpha).endVertex();
+                bufferBuilder.pos(middle.x, posB.y, middle.z).color(c.getRed(), c.getGreen(), c.getBlue(), lineAlpha).endVertex();
+            }
+
+            tessellator.draw();
+        }
+    }
+
+    protected static void drawMirrorPlaneY(Vec3d posA, Vec3d posB, Color c, boolean drawLines, boolean drawPlanes) {
+
+        GL11.glColor4d(c.getRed(), c.getGreen(), c.getBlue(), c.getAlpha());
+        Tessellator tessellator = Tessellator.getInstance();
+        BufferBuilder bufferBuilder = tessellator.getBuffer();
+
+        if (drawPlanes) {
+            bufferBuilder.begin(GL11.GL_TRIANGLE_STRIP, DefaultVertexFormats.POSITION_COLOR);
+
+            bufferBuilder.pos(posA.x, posA.y, posA.z).color(c.getRed(), c.getGreen(), c.getBlue(), planeAlpha).endVertex();
+            bufferBuilder.pos(posA.x, posA.y, posB.z).color(c.getRed(), c.getGreen(), c.getBlue(), planeAlpha).endVertex();
+            bufferBuilder.pos(posB.x, posA.y, posA.z).color(c.getRed(), c.getGreen(), c.getBlue(), planeAlpha).endVertex();
+            bufferBuilder.pos(posB.x, posA.y, posB.z).color(c.getRed(), c.getGreen(), c.getBlue(), planeAlpha).endVertex();
+
+            tessellator.draw();
+        }
+
+        if (drawLines) {
+            Vec3d middle = posA.add(posB).scale(0.5);
+            bufferBuilder.begin(GL11.GL_LINES, DefaultVertexFormats.POSITION_COLOR);
+
+            bufferBuilder.pos(middle.x, middle.y, posA.z).color(c.getRed(), c.getGreen(), c.getBlue(), lineAlpha).endVertex();
+            bufferBuilder.pos(middle.x, middle.y, posB.z).color(c.getRed(), c.getGreen(), c.getBlue(), lineAlpha).endVertex();
+            bufferBuilder.pos(posA.x, middle.y, middle.z).color(c.getRed(), c.getGreen(), c.getBlue(), lineAlpha).endVertex();
+            bufferBuilder.pos(posB.x, middle.y, middle.z).color(c.getRed(), c.getGreen(), c.getBlue(), lineAlpha).endVertex();
+
+            tessellator.draw();
+        }
+    }
+
+    protected static void drawMirrorLines(Mirror.MirrorSettings m) {
+
+        Vec3d pos = m.position.add(epsilon);
+
+        GL11.glColor4d(100, 100, 100, 255);
+        GL11.glLineWidth(2);
+        Tessellator tessellator = Tessellator.getInstance();
+        BufferBuilder bufferBuilder = tessellator.getBuffer();
+
+        bufferBuilder.begin(GL11.GL_LINES, DefaultVertexFormats.POSITION_COLOR);
+
+        bufferBuilder.pos(pos.x - m.radius, pos.y, pos.z).color(colorX.getRed(), colorX.getGreen(), colorX.getBlue(), lineAlpha).endVertex();
+        bufferBuilder.pos(pos.x + m.radius, pos.y, pos.z).color(colorX.getRed(), colorX.getGreen(), colorX.getBlue(), lineAlpha).endVertex();
+        bufferBuilder.pos(pos.x, pos.y - m.radius, pos.z).color(colorY.getRed(), colorY.getGreen(), colorY.getBlue(), lineAlpha).endVertex();
+        bufferBuilder.pos(pos.x, pos.y + m.radius, pos.z).color(colorY.getRed(), colorY.getGreen(), colorY.getBlue(), lineAlpha).endVertex();
+        bufferBuilder.pos(pos.x, pos.y, pos.z - m.radius).color(colorZ.getRed(), colorZ.getGreen(), colorZ.getBlue(), lineAlpha).endVertex();
+        bufferBuilder.pos(pos.x, pos.y, pos.z + m.radius).color(colorZ.getRed(), colorZ.getGreen(), colorZ.getBlue(), lineAlpha).endVertex();
+
+        tessellator.draw();
+    }
+}

src/main/java/nl/requios/effortlessbuilding/render/RenderHandler.java

@@ -0,0 +1,267 @@
+package nl.requios.effortlessbuilding.render;
+
+import com.mojang.blaze3d.platform.GlStateManager;
+import net.minecraft.block.BlockState;
+import net.minecraft.client.Minecraft;
+import net.minecraft.client.audio.SimpleSound;
+import net.minecraft.client.entity.player.ClientPlayerEntity;
+import net.minecraft.client.renderer.BlockRendererDispatcher;
+import net.minecraft.client.renderer.WorldRenderer;
+import net.minecraft.client.renderer.tileentity.TileEntityRendererDispatcher;
+import net.minecraft.client.resources.I18n;
+import net.minecraft.client.settings.KeyBinding;
+import net.minecraft.entity.player.PlayerEntity;
+import net.minecraft.util.SoundCategory;
+import net.minecraft.util.SoundEvents;
+import net.minecraft.util.math.AxisAlignedBB;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.math.Vec3d;
+import net.minecraft.util.math.shapes.VoxelShape;
+import net.minecraftforge.api.distmarker.Dist;
+import net.minecraftforge.client.event.RenderGameOverlayEvent;
+import net.minecraftforge.client.event.RenderWorldLastEvent;
+import net.minecraftforge.eventbus.api.SubscribeEvent;
+import net.minecraftforge.fml.common.Mod;
+import nl.requios.effortlessbuilding.EffortlessBuilding;
+import nl.requios.effortlessbuilding.buildmode.ModeOptions;
+import nl.requios.effortlessbuilding.buildmode.ModeSettingsManager;
+import nl.requios.effortlessbuilding.buildmodifier.ModifierSettingsManager;
+import nl.requios.effortlessbuilding.gui.buildmode.RadialMenu;
+import nl.requios.effortlessbuilding.helper.ReachHelper;
+import nl.requios.effortlessbuilding.network.ModeActionMessage;
+import nl.requios.effortlessbuilding.network.ModeSettingsMessage;
+import nl.requios.effortlessbuilding.network.PacketHandler;
+import nl.requios.effortlessbuilding.proxy.ClientProxy;
+import org.lwjgl.opengl.GL11;
+import org.lwjgl.opengl.GL14;
+
+/***
+ * Main render class for Effortless Building
+ */
+@Mod.EventBusSubscriber(value = Dist.CLIENT)
+public class RenderHandler {
+
+    @SubscribeEvent
+    public static void onRender(RenderWorldLastEvent event) {
+        PlayerEntity player = Minecraft.getInstance().player;
+        ModeSettingsManager.ModeSettings modeSettings = ModeSettingsManager.getModeSettings(player);
+        ModifierSettingsManager.ModifierSettings modifierSettings = ModifierSettingsManager.getModifierSettings(player);
+
+        begin(event.getPartialTicks());
+
+        //Mirror and radial mirror lines and areas
+        ModifierRenderer.render(modifierSettings);
+
+        //Render block previews
+        BlockPreviewRenderer.render(player, modifierSettings, modeSettings);
+
+        end();
+    }
+
+    @SubscribeEvent
+    //Display Radial Menu
+    public static void onRenderGameOverlay(final RenderGameOverlayEvent.Post event) {
+        Minecraft mc = Minecraft.getInstance();
+        ClientPlayerEntity player = mc.player;
+
+        //check if chisel and bits tool in hand (and has menu)
+//        final boolean hasChiselInHand = CompatHelper.chiselsAndBitsProxy.isHoldingChiselTool(EnumHand.MAIN_HAND);
+
+        final RenderGameOverlayEvent.ElementType type = event.getType();
+        //TODO 1.13 compatibility
+        if (type == RenderGameOverlayEvent.ElementType.ALL /*&& !hasChiselInHand*/) {
+            final boolean wasVisible = RadialMenu.instance.isVisible();
+
+            if (ClientProxy.keyBindings[3].isKeyDown()) {
+                if (ReachHelper.getMaxReach(player) > 0) {
+                    RadialMenu.instance.actionUsed = false;
+                    RadialMenu.instance.raiseVisibility();
+                } else if (ClientProxy.keyBindings[3].isPressed()) {
+                    EffortlessBuilding.log(player, "Build modes are disabled until your reach has increased. Increase your reach with craftable reach upgrades.");
+                }
+            } else {
+                if (!RadialMenu.instance.actionUsed) {
+                    ModeSettingsManager.ModeSettings modeSettings = ModeSettingsManager.getModeSettings(player);
+
+                    if (RadialMenu.instance.switchTo != null) {
+                        playRadialMenuSound();
+                        modeSettings.setBuildMode(RadialMenu.instance.switchTo);
+                        ModeSettingsManager.setModeSettings(player, modeSettings);
+                        PacketHandler.INSTANCE.sendToServer(new ModeSettingsMessage(modeSettings));
+
+                        EffortlessBuilding.log(player, I18n.format(modeSettings.getBuildMode().name), true);
+                    }
+
+                    //Perform button action
+                    ModeOptions.ActionEnum action = RadialMenu.instance.doAction;
+                    if (action != null) {
+                        ModeOptions.performAction(player, action);
+                        PacketHandler.INSTANCE.sendToServer(new ModeActionMessage(action));
+                    }
+
+                    playRadialMenuSound();
+                }
+
+                RadialMenu.instance.actionUsed = true;
+                RadialMenu.instance.decreaseVisibility();
+            }
+
+            if (RadialMenu.instance.isVisible()) {
+
+                int scaledWidth = mc.mainWindow.getScaledWidth();
+                int scaledHeight = mc.mainWindow.getScaledHeight();
+                RadialMenu.instance.configure(scaledWidth, scaledHeight);
+
+                if (!wasVisible) {
+                    mc.mouseHelper.ungrabMouse();
+                }
+
+                if (mc.mouseHelper.isMouseGrabbed()) {
+                    KeyBinding.unPressAllKeys();
+                }
+
+                final int mouseX = ((int) mc.mouseHelper.getMouseX()) * scaledWidth / mc.mainWindow.getFramebufferWidth();
+                final int mouseY = scaledHeight - ((int) mc.mouseHelper.getMouseY()) * scaledHeight / mc.mainWindow.getFramebufferHeight() - 1;
+
+                net.minecraftforge.client.ForgeHooksClient.drawScreen(RadialMenu.instance, mouseX, mouseY, event.getPartialTicks());
+            } else {
+                if (wasVisible && RadialMenu.instance.doAction != ModeOptions.ActionEnum.OPEN_MODIFIER_SETTINGS) {
+                    mc.mouseHelper.grabMouse();
+                }
+            }
+        }
+    }
+
+    public static void playRadialMenuSound() {
+        final float volume = 0.1f;
+        if (volume >= 0.0001f) {
+            SimpleSound sound = new SimpleSound(SoundEvents.UI_BUTTON_CLICK, SoundCategory.MASTER, volume, 1.0f, Minecraft.getInstance().player.getPosition());
+            Minecraft.getInstance().getSoundHandler().play(sound);
+        }
+    }
+
+    private static void begin(float partialTicks) {
+//        PlayerEntity player = Minecraft.getInstance().player;
+//        double playerX = player.prevPosX + (player.posX - player.prevPosX) * partialTicks;
+//        double playerY = player.prevPosY + (player.posY - player.prevPosY) * partialTicks;
+//        double playerZ = player.prevPosZ + (player.posZ - player.prevPosZ) * partialTicks;
+//        Vec3d playerPos = new Vec3d(playerX, playerY, playerZ);
+
+        GL11.glPushMatrix();
+//        GL11.glTranslated(-playerPos.x, -playerPos.y, -playerPos.z);
+        GlStateManager.translated(-TileEntityRendererDispatcher.staticPlayerX, -TileEntityRendererDispatcher.staticPlayerY, -TileEntityRendererDispatcher.staticPlayerZ);
+
+        GL11.glDepthMask(false);
+    }
+
+    protected static void beginLines() {
+        GL11.glPushAttrib(GL11.GL_ENABLE_BIT);
+        GL11.glDisable(GL11.GL_CULL_FACE);
+        GL11.glDisable(GL11.GL_LIGHTING);
+        GL11.glDisable(GL11.GL_TEXTURE_2D);
+
+        GL11.glEnable(GL11.GL_BLEND);
+        GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);
+
+        GL11.glLineWidth(2);
+    }
+
+    protected static void endLines() {
+        GL11.glPopAttrib();
+    }
+
+    protected static void beginBlockPreviews() {
+        GL11.glPushAttrib(GL11.GL_ENABLE_BIT);
+        GL11.glEnable(GL11.GL_CULL_FACE);
+        GL11.glEnable(GL11.GL_TEXTURE_2D);
+//        Minecraft.getMinecraft().renderEngine.bindTexture(TextureMap.LOCATION_BLOCKS_TEXTURE);
+        Minecraft.getInstance().textureManager.bindTexture(ShaderHandler.shaderMaskTextureLocation);
+
+        GlStateManager.enableBlend();
+        GlStateManager.blendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);
+        GL14.glBlendColor(1F, 1F, 1F, 0.8f);
+    }
+
+    protected static void endBlockPreviews() {
+        ShaderHandler.releaseShader();
+        GlStateManager.disableBlend();
+
+        GL11.glPopAttrib();
+    }
+
+    private static void end() {
+        GL11.glDepthMask(true);
+        GL11.glPopMatrix();
+    }
+
+    protected static void renderBlockPreview(BlockRendererDispatcher dispatcher, BlockPos blockPos, BlockState blockState) {
+        if (blockState == null) return;
+
+        GlStateManager.pushMatrix();
+        GlStateManager.translatef(blockPos.getX(), blockPos.getY(), blockPos.getZ());
+        GlStateManager.rotatef(-90.0F, 0.0F, 1.0F, 0.0F);
+        GlStateManager.translatef(-0.01f, -0.01f, 0.01f);
+        GlStateManager.scalef(1.02f, 1.02f, 1.02f);
+
+        try {
+            dispatcher.renderBlockBrightness(blockState, 0.85f);
+        } catch (NullPointerException e) {
+            EffortlessBuilding.logger.warn("RenderHandler::renderBlockPreview cannot render " + blockState.getBlock().toString());
+
+            //Render outline as backup
+            GlStateManager.popMatrix();
+//            ShaderHandler.releaseShader();
+            GL11.glDisable(GL11.GL_LIGHTING);
+            renderBlockOutline(blockPos, new Vec3d(1f, 1f, 1f));
+            GL11.glEnable(GL11.GL_LIGHTING);
+            GlStateManager.pushMatrix();
+        }
+
+        GlStateManager.popMatrix();
+    }
+
+    protected static void renderBlockOutline(BlockPos pos, Vec3d color) {
+        renderBlockOutline(pos, pos, color);
+    }
+
+    //Renders outline. Pos1 has to be minimal x,y,z and pos2 maximal x,y,z
+    protected static void renderBlockOutline(BlockPos pos1, BlockPos pos2, Vec3d color) {
+        GL11.glLineWidth(2);
+
+        AxisAlignedBB aabb = new AxisAlignedBB(pos1, pos2.add(1, 1, 1)).grow(0.0020000000949949026);
+
+        WorldRenderer.drawSelectionBoundingBox(aabb, (float) color.x, (float) color.y, (float) color.z, 0.4f);
+    }
+
+    //Renders outline with given bounding box
+    protected static void renderBlockOutline(BlockPos pos, VoxelShape collisionShape, Vec3d color) {
+        GL11.glLineWidth(2);
+
+//        AxisAlignedBB aabb = boundingBox.offset(pos).grow(0.0020000000949949026);
+//        VoxelShape voxelShape = collisionShape.withOffset(pos.getX(), pos.getY(), pos.getZ());
+
+//        WorldRenderer.drawSelectionBoundingBox(aabb, (float) color.x, (float) color.y, (float) color.z, 0.4f);
+        WorldRenderer.drawShape(collisionShape, pos.getX(), pos.getY(), pos.getZ(), (float) color.x, (float) color.y, (float) color.z, 0.4f);
+    }
+
+    //TODO 1.14
+    //Sends breaking progress for all coordinates to renderglobal, so all blocks get visually broken
+//    @Override
+//    public void sendBlockBreakProgress(int breakerId, BlockPos pos, int progress) {
+//        Minecraft mc = Minecraft.getInstance();
+//
+//        ModifierSettingsManager.ModifierSettings modifierSettings = ModifierSettingsManager.getModifierSettings(mc.player);
+//        if (!BuildModifiers.isEnabled(modifierSettings, pos)) return;
+//
+//        List<BlockPos> coordinates = BuildModifiers.findCoordinates(mc.player, pos);
+//        for (int i = 1; i < coordinates.size(); i++) {
+//            BlockPos coordinate = coordinates.get(i);
+//            if (SurvivalHelper.canBreak(mc.world, mc.player, coordinate)) {
+//                //Send i as entity id because only one block can be broken per id
+//                //Unless i happens to be the player id, then take something else
+//                int fakeId = mc.player.getEntityId() != i ? i : coordinates.size();
+//                mc.renderGlobal.sendBlockBreakProgress(fakeId, coordinate, progress);
+//            }
+//        }
+//    }
+}

src/main/java/nl/requios/effortlessbuilding/render/ShaderHandler.java

@@ -0,0 +1,202 @@
+/**
+ * This class was created by <Vazkii>. It's distributed as
+ * part of the Botania Mod. Get the Source Code in github:
+ * https://github.com/Vazkii/Botania
+ *
+ * Modified by Requios
+ *
+ * Botania is Open Source and distributed under the
+ * Botania License: http://botaniamod.net/license.php
+ *
+ * File Created @ [Apr 9, 2014, 11:20:26 PM (GMT)]
+ */
+package nl.requios.effortlessbuilding.render;
+
+import net.minecraft.util.ResourceLocation;
+import nl.requios.effortlessbuilding.BuildConfig;
+import nl.requios.effortlessbuilding.EffortlessBuilding;
+import nl.requios.effortlessbuilding.proxy.ClientProxy;
+import org.apache.logging.log4j.Level;
+import org.lwjgl.opengl.*;
+
+import java.io.BufferedReader;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.nio.charset.StandardCharsets;
+import java.util.function.Consumer;
+
+public final class ShaderHandler {
+
+    private static final int VERT_ST = ARBVertexShader.GL_VERTEX_SHADER_ARB;
+    private static final int FRAG_ST = ARBFragmentShader.GL_FRAGMENT_SHADER_ARB;
+
+    private static final int VERT = 1;
+    private static final int FRAG = 2;
+
+    private static final String VERT_EXTENSION = ".vert";
+    private static final String FRAG_EXTENSION = ".frag";
+
+    public static int rawColor;
+    public static int dissolve;
+
+    public static ResourceLocation shaderMaskTextureLocation = new ResourceLocation(EffortlessBuilding.MODID, "textures/shader_mask.png");
+
+    public static void init() {
+        if(!doUseShaders())
+            return;
+
+//        rawColor = createProgram("/assets/effortlessbuilding/shaders/raw_color", FRAG);
+        dissolve = createProgram("/assets/effortlessbuilding/shaders/dissolve", VERT + FRAG);
+    }
+
+    public static void useShader(int shader, Consumer<Integer> callback) {
+        if(!doUseShaders())
+            return;
+
+        ARBShaderObjects.glUseProgramObjectARB(shader);
+
+        if(shader != 0) {
+            int time = ARBShaderObjects.glGetUniformLocationARB(shader, "time");
+            ARBShaderObjects.glUniform1iARB(time, ClientProxy.ticksInGame);
+
+            if(callback != null)
+                callback.accept(shader);
+        }
+    }
+
+    public static void useShader(int shader) {
+        useShader(shader, null);
+    }
+
+    public static void releaseShader() {
+        useShader(0);
+    }
+
+    public static boolean doUseShaders() {
+        //Extracted from OpenGLHelper in 1.13 and earlier
+        //Can probably be simplified
+        GLCapabilities glcapabilities = GL.getCapabilities();
+        boolean openGL14 = glcapabilities.OpenGL14 || glcapabilities.GL_EXT_blend_func_separate;
+        boolean openGL21 = glcapabilities.OpenGL21;
+        boolean framebufferSupported = openGL14 && (glcapabilities.GL_ARB_framebuffer_object || glcapabilities.GL_EXT_framebuffer_object || glcapabilities.OpenGL30);
+        boolean shadersAvailable = openGL21 || glcapabilities.GL_ARB_vertex_shader && glcapabilities.GL_ARB_fragment_shader && glcapabilities.GL_ARB_shader_objects;
+        boolean shadersSupported = framebufferSupported && shadersAvailable;
+        return BuildConfig.visuals.useShaders.get() && shadersSupported;
+    }
+
+    private static int createProgram(String s, int sides) {
+        boolean vert = (sides & VERT) != 0;
+        boolean frag = (sides & FRAG) != 0;
+
+        return createProgram(vert ? s + VERT_EXTENSION : null, frag ? s + FRAG_EXTENSION : null);
+    }
+
+    // Most of the code taken from the LWJGL wiki
+    // http://lwjgl.org/wiki/index.php?title=GLSL_Shaders_with_LWJGL
+
+    private static int createProgram(String vert, String frag) {
+        int vertId = 0, fragId = 0, program;
+        if(vert != null)
+            vertId = createShader(vert, VERT_ST);
+        if(frag != null)
+            fragId = createShader(frag, FRAG_ST);
+
+        program = ARBShaderObjects.glCreateProgramObjectARB();
+        if(program == 0)
+            return 0;
+
+        if(vert != null)
+            ARBShaderObjects.glAttachObjectARB(program, vertId);
+        if(frag != null)
+            ARBShaderObjects.glAttachObjectARB(program, fragId);
+
+        ARBShaderObjects.glLinkProgramARB(program);
+        if(ARBShaderObjects.glGetObjectParameteriARB(program, ARBShaderObjects.GL_OBJECT_LINK_STATUS_ARB) == GL11.GL_FALSE) {
+            EffortlessBuilding.logger.log(Level.ERROR, getLogInfo(program));
+            return 0;
+        }
+
+        ARBShaderObjects.glValidateProgramARB(program);
+        if (ARBShaderObjects.glGetObjectParameteriARB(program, ARBShaderObjects.GL_OBJECT_VALIDATE_STATUS_ARB) == GL11.GL_FALSE) {
+            EffortlessBuilding.logger.log(Level.ERROR, getLogInfo(program));
+            return 0;
+        }
+
+        return program;
+    }
+
+    private static int createShader(String filename, int shaderType){
+        int shader = 0;
+        try {
+            shader = ARBShaderObjects.glCreateShaderObjectARB(shaderType);
+
+            if(shader == 0)
+                return 0;
+
+            ARBShaderObjects.glShaderSourceARB(shader, readFileAsString(filename));
+            ARBShaderObjects.glCompileShaderARB(shader);
+
+            if (ARBShaderObjects.glGetObjectParameteriARB(shader, ARBShaderObjects.GL_OBJECT_COMPILE_STATUS_ARB) == GL11.GL_FALSE)
+                throw new RuntimeException("Error creating shader: " + getLogInfo(shader));
+
+            return shader;
+        }
+        catch(Exception e) {
+            ARBShaderObjects.glDeleteObjectARB(shader);
+            e.printStackTrace();
+            return -1;
+        }
+    }
+
+    private static String getLogInfo(int obj) {
+        return ARBShaderObjects.glGetInfoLogARB(obj, ARBShaderObjects.glGetObjectParameteriARB(obj, ARBShaderObjects.GL_OBJECT_INFO_LOG_LENGTH_ARB));
+    }
+
+    private static String readFileAsString(String filename) throws Exception {
+        StringBuilder source = new StringBuilder();
+        InputStream in = ShaderHandler.class.getResourceAsStream(filename);
+        Exception exception = null;
+        BufferedReader reader;
+
+        if(in == null)
+            return "";
+
+        try {
+            reader = new BufferedReader(new InputStreamReader(in, StandardCharsets.UTF_8));
+
+            Exception innerExc= null;
+            try {
+                String line;
+                while((line = reader.readLine()) != null)
+                    source.append(line).append('\n');
+            } catch(Exception exc) {
+                exception = exc;
+            } finally {
+                try {
+                    reader.close();
+                } catch(Exception exc) {
+                    innerExc = exc;
+                }
+            }
+
+            if(innerExc != null)
+                throw innerExc;
+        } catch(Exception exc) {
+            exception = exc;
+        } finally {
+            try {
+                in.close();
+            } catch(Exception exc) {
+                if(exception == null)
+                    exception = exc;
+                else exc.printStackTrace();
+            }
+
+            if(exception != null)
+                throw exception;
+        }
+
+        return source.toString();
+    }
+
+}

src/main/resources/META-INF/mods.toml

@@ -0,0 +1,52 @@
+# This is an example mods.toml file. It contains the data relating to the loading mods.
+# There are several mandatory fields (#mandatory), and many more that are optional (#optional).
+# The overall format is standard TOML format, v0.5.0.
+# Note that there are a couple of TOML lists in this file.
+# Find more information on toml format here:  https://github.com/toml-lang/toml
+# The name of the mod loader type to load - for regular FML @Mod mods it should be javafml
+modLoader="javafml" #mandatory
+# A version range to match for said mod loader - for regular FML @Mod it will be the forge version
+loaderVersion="[25,)" #mandatory (24 is current forge version)
+# A URL to refer people to when problems occur with this mod
+issueTrackerURL="https://bitbucket.org/Requios/effortless-building/issues?status=new&status=open" #optional
+# A list of mods - how many allowed here is determined by the individual mod loader
+[[mods]] #mandatory
+# The modid of the mod
+modId="effortlessbuilding" #mandatory
+# The version number of the mod - there's a few well known ${} variables useable here or just hardcode it
+version="${file.jarVersion}" #mandatory
+ # A display name for the mod
+displayName="Effortless Building" #mandatory
+# A URL to query for updates for this mod. See the JSON update specification <here>
+#updateJSONURL="example.com" #optional
+# A URL for the "homepage" for this mod, displayed in the mod UI
+displayURL="https://minecraft.curseforge.com/projects/effortless-building" #optional
+# A file name (in the root of the mod JAR) containing a logo for display
+logoFile="logo.png" #optional
+# A text field displayed in the mod UI
+credits="" #optional
+# A text field displayed in the mod UI
+authors="Requios" #optional
+# The description text for the mod (multi line!) (#mandatory)
+description='''
+Makes building easier by providing tools like mirrors, arrays, QuickReplace and a block randomizer. For survival and creative mode.
+'''
+# A dependency - use the . to indicate dependency for a specific modid. Dependencies are optional.
+#[[dependencies.examplemod]] #optional
+#    # the modid of the dependency
+#    modId="forge" #mandatory
+#    # Does this dependency have to exist - if not, ordering below must be specified
+#    mandatory=true #mandatory
+#    # The version range of the dependency
+#    versionRange="[25,)" #mandatory
+#    # An ordering relationship for the dependency - BEFORE or AFTER required if the relationship is not mandatory
+#    ordering="NONE"
+#    # Side this dependency is applied on - BOTH, CLIENT or SERVER
+#    side="BOTH"
+## Here's another dependency
+#[[dependencies.examplemod]]
+#    modId="minecraft"
+#    mandatory=true
+#    versionRange="[1.13.2]"
+#    ordering="NONE"
+#    side="BOTH"

src/main/resources/assets/effortlessbuilding/lang/en_us.json

@@ -0,0 +1,58 @@
+{
+	"effortlessbuilding.screen.modifier_settings": "Modifier Settings",
+	"effortlessbuilding.screen.radial_menu": "Build Modes",
+	"effortlessbuilding.screen.randomizer_bag": "Randomizer Bag",
+
+    "key.effortlessbuilding.category": "Effortless Building",
+    "key.effortlessbuilding.hud.desc": "Modifier Menu",
+    "key.effortlessbuilding.replace.desc": "Toggle QuickReplace",
+    "key.effortlessbuilding.creative.desc": "Toggle Survival/Creative Mode",
+    "key.effortlessbuilding.mode.desc": "Radial Menu",
+    "key.effortlessbuilding.undo.desc": "Undo",
+    "key.effortlessbuilding.redo.desc": "Redo",
+    "key.effortlessbuilding.altplacement.desc": "Alternative placement",
+
+    "effortlessbuilding:randomizer_bag": "Randomizer Bag",
+    "effortlessbuilding:reach_upgrade1": "Reach Upgrade 1",
+    "effortlessbuilding:reach_upgrade2": "Reach Upgrade 2",
+    "effortlessbuilding:reach_upgrade3": "Reach Upgrade 3",
+
+    "effortlessbuilding.mode.normal": "Normal",
+    "effortlessbuilding.mode.normal_plus": "Normal+",
+    "effortlessbuilding.mode.line": "Line",
+    "effortlessbuilding.mode.wall": "Wall",
+    "effortlessbuilding.mode.floor": "Floor",
+    "effortlessbuilding.mode.diagonal_line": "Diagonal Line",
+    "effortlessbuilding.mode.diagonal_wall": "Diagonal Wall",
+    "effortlessbuilding.mode.slope_floor": "Slope Floor",
+    "effortlessbuilding.mode.cube": "Cube",
+    "effortlessbuilding.mode.circle": "Circle",
+    "effortlessbuilding.mode.cylinder": "Cylinder",
+    "effortlessbuilding.mode.sphere": "Sphere",
+
+    "effortlessbuilding.action.undo": "Undo",
+    "effortlessbuilding.action.redo": "Redo",
+    "effortlessbuilding.action.replace": "Replace",
+    "effortlessbuilding.action.open_modifier_settings": "Open Modifier Settings",
+	
+    "effortlessbuilding.action.build_speed": "Build Speed",
+    "effortlessbuilding.action.filling": "Filling",
+    "effortlessbuilding.action.raised_edge": "Raised Edge",
+    "effortlessbuilding.action.thickness": "Line Thickness",
+    "effortlessbuilding.action.circle_start": "Start Point",
+
+    "effortlessbuilding.action.normal_speed": "Normal",
+    "effortlessbuilding.action.fast_speed": "Fast",
+    "effortlessbuilding.action.full": "Filled",
+    "effortlessbuilding.action.hollow": "Hollow",
+    "effortlessbuilding.action.skeleton": "Skeleton",
+    "effortlessbuilding.action.short_edge": "Short Edge",
+    "effortlessbuilding.action.long_edge": "Long Edge",
+    "effortlessbuilding.action.thickness_1": "1 Block Thick",
+    "effortlessbuilding.action.thickness_3": "3 Blocks Thick",
+    "effortlessbuilding.action.thickness_5": "5 Blocks Thick",
+    "effortlessbuilding.action.start_center": "Middle",
+    "effortlessbuilding.action.start_corner": "Corner",
+
+    "commands.reach.usage": "/reach <level>"
+}

src/main/resources/assets/effortlessbuilding/lang/en_us.lang

@@ -1,5 +0,0 @@
-key.effortlessbuilding.category=Effortless Building
-key.hud.desc=Open Settings
-key.replace.desc=Switch Replace Mode
-
-item.effortlessbuilding:randomizer_bag.name=Randomizer Bag

src/main/resources/assets/effortlessbuilding/models/item/reach_upgrade1.json

@@ -0,0 +1,6 @@
+{
+    "parent": "item/generated",
+    "textures": {
+        "layer0": "effortlessbuilding:items/reachupgrade1"
+    }
+}