Refactored shader code to use GL20 instead of ARB.

Fixed issue #36: Having issues with some features with a Sponge Forge Server.
Messed with shader to try and fix some issues.

build.gradle

@@ -11,7 +11,7 @@ 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.
 
 
-version = "1.0.3"
+version = "1.12.2-2.10"
 group = "nl.requios.effortlessbuilding" // http://maven.apache.org/guides/mini/guide-naming-conventions.html
 archivesBaseName = "effortlessbuilding"
 
@@ -21,7 +21,7 @@ compileJava {
 }
 
 minecraft {
-    version = "1.12.2-14.23.5.2768"
+    version = "1.12.2-14.23.5.2825"
     runDir = "run"
     
     // the mappings can be changed at any time, and must be in the following format.
@@ -33,6 +33,10 @@ minecraft {
     // makeObfSourceJar = false // an Srg named sources jar is made by default. uncomment this to disable.
 }
 
+repositories {
+	flatDir { dirs 'libs' }
+}
+
 dependencies {
     // you may put jars on which you depend on in ./libs
     // or you may define them like so..
@@ -50,6 +54,7 @@ dependencies {
     // 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'
+	provided 'mod.chiselsandbits:chiselsandbits:14.30'
 
     // for more info...
     // http://www.gradle.org/docs/current/userguide/artifact_dependencies_tutorial.html

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

@@ -50,13 +50,40 @@ public class BuildConfig {
                  "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%."})
-        @RangeInt(min = 0, max = 100)
+        @RangeInt(min = 0, max = 200)
         public int miningTimePercentage = 50;
+
+        @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 oref 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",
+                 })
+        @RangeInt(min = -1, max = 3)
+        public int quickReplaceMiningLevel = -1;
+
+        @Comment({"How many placements are remembered for the undo functionality."})
+        @RequiresMcRestart
+        public int undoStackSize = 10;
     }
 
     public static class Visuals {
-        @Comment({"Show a block preview if you have a block in hand,",
-                 "even when mirror and array are off."})
+        @Comment({"Show a block preview if you have a block in hand on build mode NORMAL"})
         public boolean alwaysShowBlockPreview = false;
+
+        @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"})
+        public double dissolveTimeMultiplier = 1.0;
+
+        @Comment({"Switch to using the simple performance shader when placing more than this many blocks."})
+        public int shaderTreshold = 1500;
+
+        @Comment({"Use fancy shaders while placing blocks"})
+        public boolean useShaders = true;
+
     }
 }

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

@@ -1,216 +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.ItemBlock;
-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.event.world.BlockEvent;
-import nl.requios.effortlessbuilding.helper.ReachHelper;
-import nl.requios.effortlessbuilding.helper.SurvivalHelper;
-import nl.requios.effortlessbuilding.item.ItemRandomizerBag;
-import nl.requios.effortlessbuilding.network.BlockBrokenMessage;
-import nl.requios.effortlessbuilding.network.BlockPlacedMessage;
-
-import java.util.ArrayList;
-import java.util.List;
-
-public class BuildModifiers {
-
-    //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(EntityPlayer player, BlockPlacedMessage message) {
-        if (!message.isBlockHit() || message.getBlockPos() == null) return;
-
-        World world = player.world;
-        ItemRandomizerBag.renewRandomness();
-
-        BlockPos startPos = message.getBlockPos();
-
-        //Offset in direction of sidehit if not quickreplace and not replaceable
-        BuildSettingsManager.BuildSettings buildSettings = BuildSettingsManager.getBuildSettings(player);
-        boolean replaceable = world.getBlockState(startPos).getBlock().isReplaceable(player.world, startPos);
-        if (!buildSettings.doQuickReplace() && !replaceable) {
-            startPos = startPos.offset(message.getSideHit());
-        }
-
-        //Get under tall grass and other replaceable blocks
-        if (buildSettings.doQuickReplace() && replaceable) {
-            startPos = startPos.down();
-        }
-
-        //Check if player reach does not exceed startpos
-        int maxReach = ReachHelper.getMaxReach(player);
-        if (player.getPosition().distanceSq(startPos) > maxReach * maxReach) {
-            EffortlessBuilding.log(player, "Placement exceeds your reach.");
-            return;
-        }
-
-        //Format hitvec to 0.x
-        Vec3d hitVec = message.getHitVec();
-        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, startPos);
-        List<ItemStack> itemStacks = new ArrayList<>();
-        List<IBlockState> blockStates = findBlockStates(player, startPos, hitVec, message.getSideHit(), itemStacks);
-
-        //check if valid blockstates
-        if (blockStates.size() == 0 || coordinates.size() != blockStates.size()) return;
-
-        //place blocks
-        for (int i = 0; i < coordinates.size(); i++) {
-            BlockPos blockPos = coordinates.get(i);
-            IBlockState blockState = blockStates.get(i);
-            ItemStack itemStack = itemStacks.get(i);
-
-            if (world.isBlockLoaded(blockPos, true)) {
-                //check itemstack empty
-                if (itemStack.isEmpty()) continue;
-                SurvivalHelper.placeBlock(world, player, blockPos, blockState, itemStack, EnumFacing.UP, hitVec, false, false);
-            }
-        }
-    }
-
-    public static void onBlockPlaced(BlockEvent.PlaceEvent event) {
-        if (event.getWorld().isRemote) return;
-
-        BuildSettingsManager.BuildSettings buildSettings = BuildSettingsManager.getBuildSettings(event.getPlayer());
-        //Only use own place event if anything is enabled
-        if (isEnabled(buildSettings, event.getPos())) {
-            //EffortlessBuilding.packetHandler.sendTo(new BlockPlacedMessage(), (EntityPlayerMP) event.getPlayer());
-            event.setCanceled(true);
-        }
-
-    }
-
-    //Use a network message to break blocks in the distance using clientside mouse input
-    public static void onBlockBrokenMessage(EntityPlayer player, BlockBrokenMessage message) {
-        BlockPos blockPos = message.getBlockPos();
-        if (ReachHelper.canBreakFar(player) && message.isBlockHit()) {
-            BlockEvent.BreakEvent event = new BlockEvent.BreakEvent(player.world, blockPos, player.world.getBlockState(blockPos), player);
-            onBlockBroken(event);
-        }
-    }
-
-    public static void onBlockBroken(BlockEvent.BreakEvent event) {
-        World world = event.getWorld();
-        BlockPos pos = event.getPos();
-
-        if (world.isRemote) return;
-
-        BuildSettingsManager.BuildSettings buildSettings = BuildSettingsManager.getBuildSettings(event.getPlayer());
-        //Only use own break event if anything is enabled
-        if (isEnabled(buildSettings, pos)) {
-            //get coordinates
-            List<BlockPos> coordinates = findCoordinates(event.getPlayer(), pos);
-
-            //If the player is going to instabreak grass or a plant, only break other instabreaking things
-            boolean onlyInstaBreaking = world.getBlockState(pos).getBlockHardness(
-                    world, pos) == 0f;
-
-            //break all those blocks
-            for (BlockPos coordinate : coordinates) {
-                if (world.isBlockLoaded(coordinate, false)) {
-                    if (!onlyInstaBreaking || world.getBlockState(coordinate).getBlockHardness(world, coordinate) == 0f) {
-                        SurvivalHelper.breakBlock(world, event.getPlayer(), coordinate);
-                    }
-                }
-            }
-        }
-    }
-
-    public static List<BlockPos> findCoordinates(EntityPlayer player, BlockPos startPos) {
-        List<BlockPos> coordinates = new ArrayList<>();
-        //Add current block being placed too
-        coordinates.add(startPos);
-
-        List<BlockPos> arrayCoordinates = Array.findCoordinates(player, startPos);
-        coordinates.addAll(arrayCoordinates);
-        coordinates.addAll(Mirror.findCoordinates(player, startPos));
-        coordinates.addAll(RadialMirror.findCoordinates(player, startPos));
-        //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<IBlockState> findBlockStates(EntityPlayer player, BlockPos startPos, Vec3d hitVec, EnumFacing facing, List<ItemStack> itemStacks) {
-        List<IBlockState> blockStates = new ArrayList<>();
-        itemStacks.clear();
-
-        //Get itemstack
-        ItemStack itemStack = player.getHeldItem(EnumHand.MAIN_HAND);
-        if (itemStack.isEmpty() || !(itemStack.getItem() instanceof ItemBlock || itemStack.getItem() instanceof ItemRandomizerBag)) {
-            itemStack = player.getHeldItem(EnumHand.OFF_HAND);
-        }
-        if (itemStack.isEmpty() || !(itemStack.getItem() instanceof ItemBlock || itemStack.getItem() instanceof ItemRandomizerBag)) {
-            return blockStates;
-        }
-
-        //Get ItemBlock stack
-        ItemStack itemBlock = ItemStack.EMPTY;
-        if (itemStack.getItem() instanceof ItemBlock) itemBlock = itemStack;
-        ItemRandomizerBag.resetRandomness();
-        if (itemStack.getItem() instanceof ItemRandomizerBag) itemBlock = ItemRandomizerBag.pickRandomStack(ItemRandomizerBag.getBagInventory(itemStack));
-
-        IBlockState blockState = getBlockStateFromItem(itemBlock, player, startPos, facing, hitVec, EnumHand.MAIN_HAND);
-        //Add current block being placed too
-        blockStates.add(blockState);
-        itemStacks.add(itemStack);
-
-        List<IBlockState> arrayBlockStates = Array.findBlockStates(player, startPos, blockState, itemStack, itemStacks);
-        blockStates.addAll(arrayBlockStates);
-        blockStates.addAll(Mirror.findBlockStates(player, startPos, blockState, itemStack, itemStacks));
-        blockStates.addAll(RadialMirror.findBlockStates(player, startPos, blockState, itemStack, itemStacks));
-        //add mirror for each array coordinate
-        List<BlockPos> arrayCoordinates = Array.findCoordinates(player, startPos);
-        for (int i = 0; i < arrayCoordinates.size(); i++) {
-            BlockPos coordinate = arrayCoordinates.get(i);
-            IBlockState 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(BuildSettingsManager.BuildSettings buildSettings, BlockPos startPos) {
-        return Mirror.isEnabled(buildSettings.getMirrorSettings(), startPos) ||
-               Array.isEnabled(buildSettings.getArraySettings()) ||
-               RadialMirror.isEnabled(buildSettings.getRadialMirrorSettings(), startPos) ||
-               buildSettings.doQuickReplace();
-    }
-
-    public static IBlockState getBlockStateFromItem(ItemStack itemStack, EntityPlayer player, BlockPos blockPos, EnumFacing facing, Vec3d hitVec, EnumHand hand) {
-        return Block.getBlockFromItem(itemStack.getItem()).getStateForPlacement(player.world, blockPos, facing,
-                ((float) hitVec.x), ((float) hitVec.y), ((float) hitVec.z), itemStack.getMetadata(), player, hand);
-    }
-
-    //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;
-
-        return coordinates1.equals(coordinates2);
-    }
-}

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

@@ -3,6 +3,8 @@ package nl.requios.effortlessbuilding;
 import net.minecraft.block.Block;
 import net.minecraft.entity.player.EntityPlayer;
 import net.minecraft.item.Item;
+import net.minecraft.util.ResourceLocation;
+import net.minecraft.util.SoundEvent;
 import net.minecraft.util.text.TextComponentString;
 import net.minecraftforge.common.capabilities.CapabilityManager;
 import net.minecraftforge.common.config.Config;
@@ -17,16 +19,17 @@ 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.BuildModifierCapabilityManager;
+import nl.requios.effortlessbuilding.buildmode.BuildModes;
+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.RandomizerBagGuiHandler;
 import nl.requios.effortlessbuilding.item.ItemRandomizerBag;
 import nl.requios.effortlessbuilding.item.ItemReachUpgrade1;
 import nl.requios.effortlessbuilding.item.ItemReachUpgrade2;
 import nl.requios.effortlessbuilding.item.ItemReachUpgrade3;
-import nl.requios.effortlessbuilding.network.BlockBrokenMessage;
-import nl.requios.effortlessbuilding.network.BlockPlacedMessage;
-import nl.requios.effortlessbuilding.network.BuildSettingsMessage;
+import nl.requios.effortlessbuilding.network.*;
 import nl.requios.effortlessbuilding.proxy.IProxy;
 import org.apache.logging.log4j.Logger;
 
@@ -36,7 +39,7 @@ public class EffortlessBuilding
 {
     public static final String MODID = "effortlessbuilding";
     public static final String NAME = "Effortless Building";
-    public static final String VERSION = "1.0.3";
+    public static final String VERSION = "1.12.2-2.10";
 
     @Mod.Instance(EffortlessBuilding.MODID)
     public static EffortlessBuilding instance;
@@ -74,16 +77,26 @@ public class EffortlessBuilding
     {
         logger = event.getModLog();
 
-        CapabilityManager.INSTANCE.register(
-                BuildModifierCapabilityManager.IBuildModifierCapability.class, new BuildModifierCapabilityManager.Storage(), BuildModifierCapabilityManager.BuildModifierCapability.class);
+        CapabilityManager.INSTANCE.register(ModifierCapabilityManager.IModifierCapability.class, new ModifierCapabilityManager.Storage(), ModifierCapabilityManager.ModifierCapability.class);
+        CapabilityManager.INSTANCE.register(ModeCapabilityManager.IModeCapability.class, new ModeCapabilityManager.Storage(), ModeCapabilityManager.ModeCapability.class);
 
-        EffortlessBuilding.packetHandler.registerMessage(BuildSettingsMessage.MessageHandler.class, BuildSettingsMessage.class, 0, Side.SERVER);
-        EffortlessBuilding.packetHandler.registerMessage(BuildSettingsMessage.MessageHandler.class, BuildSettingsMessage.class, 0, Side.CLIENT);
+        EffortlessBuilding.packetHandler.registerMessage(ModifierSettingsMessage.MessageHandler.class, ModifierSettingsMessage.class, 0, Side.SERVER);
+        EffortlessBuilding.packetHandler.registerMessage(ModifierSettingsMessage.MessageHandler.class, ModifierSettingsMessage.class, 0, Side.CLIENT);
 
-        EffortlessBuilding.packetHandler.registerMessage(BlockPlacedMessage.MessageHandler.class, BlockPlacedMessage.class, 1, Side.SERVER);
-        EffortlessBuilding.packetHandler.registerMessage(BlockPlacedMessage.MessageHandler.class, BlockPlacedMessage.class, 1, Side.CLIENT);
+        EffortlessBuilding.packetHandler.registerMessage(ModeSettingsMessage.MessageHandler.class, ModeSettingsMessage.class, 1, Side.SERVER);
+        EffortlessBuilding.packetHandler.registerMessage(ModeSettingsMessage.MessageHandler.class, ModeSettingsMessage.class, 1, Side.CLIENT);
 
-        EffortlessBuilding.packetHandler.registerMessage(BlockBrokenMessage.MessageHandler.class, BlockBrokenMessage.class, 2, Side.SERVER);
+        EffortlessBuilding.packetHandler.registerMessage(ModeActionMessage.MessageHandler.class, ModeActionMessage.class, 2, Side.SERVER);
+        EffortlessBuilding.packetHandler.registerMessage(ModeActionMessage.MessageHandler.class, ModeActionMessage.class, 2, Side.CLIENT);
+
+        EffortlessBuilding.packetHandler.registerMessage(BlockPlacedMessage.MessageHandler.class, BlockPlacedMessage.class, 3, Side.SERVER);
+        EffortlessBuilding.packetHandler.registerMessage(BlockPlacedMessage.MessageHandler.class, BlockPlacedMessage.class, 3, Side.CLIENT);
+
+        EffortlessBuilding.packetHandler.registerMessage(BlockBrokenMessage.MessageHandler.class, BlockBrokenMessage.class, 4, Side.SERVER);
+
+        EffortlessBuilding.packetHandler.registerMessage(CancelModeMessage.MessageHandler.class, CancelModeMessage.class, 5, Side.SERVER);
+
+        EffortlessBuilding.packetHandler.registerMessage(RequestLookAtMessage.MessageHandler.class, RequestLookAtMessage.class, 6, Side.CLIENT);
 
         proxy.preInit(event);
     }
@@ -104,6 +117,7 @@ public class EffortlessBuilding
     public void postInit(FMLPostInitializationEvent event)
     {
         proxy.postInit(event);
+        CompatHelper.postInit();
     }
 
     @EventHandler

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

@@ -4,10 +4,12 @@ import net.minecraft.block.Block;
 import net.minecraft.block.state.IBlockState;
 import net.minecraft.entity.Entity;
 import net.minecraft.entity.player.EntityPlayer;
+import net.minecraft.entity.player.EntityPlayerMP;
 import net.minecraft.item.Item;
 import net.minecraft.item.ItemBlock;
 import net.minecraft.util.ResourceLocation;
 import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.math.Vec3d;
 import net.minecraft.world.World;
 import net.minecraftforge.common.config.Config;
 import net.minecraftforge.common.config.ConfigManager;
@@ -18,11 +20,24 @@ import net.minecraftforge.event.world.BlockEvent;
 import net.minecraftforge.fml.client.event.ConfigChangedEvent;
 import net.minecraftforge.fml.common.Mod;
 import net.minecraftforge.fml.common.eventhandler.SubscribeEvent;
-import nl.requios.effortlessbuilding.capability.BuildModifierCapabilityManager;
+import nl.requios.effortlessbuilding.buildmode.BuildModes;
+import nl.requios.effortlessbuilding.buildmode.ModeSettingsManager;
+import nl.requios.effortlessbuilding.buildmodifier.BlockSet;
+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.RequestLookAtMessage;
+import scala.actors.threadpool.Arrays;
 
+import java.util.ArrayList;
 import java.util.List;
 
+import static net.minecraftforge.fml.common.gameevent.PlayerEvent.*;
+
 @Mod.EventBusSubscriber
 public class EventHandler
 {
@@ -47,7 +62,8 @@ public class EventHandler
     @SubscribeEvent
     public static void attachCapabilities(AttachCapabilitiesEvent<Entity> event) {
         if (event.getObject() instanceof EntityPlayer) {
-            event.addCapability(new ResourceLocation(EffortlessBuilding.MODID, "BuildModifier"), new BuildModifierCapabilityManager.Provider());
+            event.addCapability(new ResourceLocation(EffortlessBuilding.MODID, "BuildModifier"), new ModifierCapabilityManager.Provider());
+            event.addCapability(new ResourceLocation(EffortlessBuilding.MODID, "BuildMode"), new ModeCapabilityManager.Provider());
         }
     }
 
@@ -66,14 +82,41 @@ public class EventHandler
 //    }
 
     @SubscribeEvent
+    //Only called serverside (except with lilypads...)
     public static void onBlockPlaced(BlockEvent.PlaceEvent event) {
-        //Still call it to cancel event
-        BuildModifiers.onBlockPlaced(event);
+        if (event.getWorld().isRemote) return;
+
+        //Cancel event if necessary
+        EntityPlayer player = event.getPlayer();
+        BuildModes.BuildModeEnum buildMode = ModeSettingsManager.getModeSettings(player).getBuildMode();
+        ModifierSettingsManager.ModifierSettings modifierSettings = ModifierSettingsManager.getModifierSettings(player);
+
+        if (buildMode != BuildModes.BuildModeEnum.NORMAL || modifierSettings.doQuickReplace()) {
+            event.setCanceled(true);
+        } else {
+            //NORMAL mode, let vanilla handle block placing
+            //But modifiers and QuickReplace should still work
+
+            //Send message to client, which sends message back with raytrace info
+            EffortlessBuilding.packetHandler.sendTo(new RequestLookAtMessage(event.getPos(), event.getBlockSnapshot().getReplacedBlock(), event.getState()), (EntityPlayerMP) player);
+        }
     }
 
     @SubscribeEvent
     public static void onBlockBroken(BlockEvent.BreakEvent event) {
-        BuildModifiers.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);
+        }
     }
 
     @SubscribeEvent
@@ -112,4 +155,34 @@ public class EventHandler
 
         //EffortlessBuilding.log(player, String.valueOf(event.getNewSpeed()));
     }
+
+    @SubscribeEvent
+    public static void onPlayerLoggedIn(PlayerLoggedInEvent event) {
+        EntityPlayer player = event.player;
+        ModifierSettingsManager.handleNewPlayer(player);
+        ModeSettingsManager.handleNewPlayer(player);
+    }
+
+    @SubscribeEvent
+    public static void onPlayerLoggedOut(PlayerLoggedOutEvent event) {
+        UndoRedo.clear(event.player);
+        //TODO call clientside
+    }
+
+    @SubscribeEvent
+    public static void onPlayerRespawn(PlayerRespawnEvent event) {
+        EntityPlayer player = event.player;
+        ModifierSettingsManager.handleNewPlayer(player);
+        ModeSettingsManager.handleNewPlayer(player);
+    }
+
+    @SubscribeEvent
+    public static void onPlayerChangedDimension(PlayerChangedDimensionEvent event) {
+        EntityPlayer player = event.player;
+        ModifierSettingsManager.handleNewPlayer(player);
+        ModeSettingsManager.handleNewPlayer(player);
+
+        UndoRedo.clear(event.player);
+        //TODO call clientside
+    }
 }

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

@@ -0,0 +1,223 @@
+package nl.requios.effortlessbuilding.buildmode;
+
+import net.minecraft.entity.player.EntityPlayer;
+import net.minecraft.util.EnumFacing;
+import net.minecraft.util.EnumHand;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.math.Vec3d;
+import nl.requios.effortlessbuilding.EffortlessBuilding;
+import nl.requios.effortlessbuilding.buildmode.ModeOptions.ActionEnum;
+import nl.requios.effortlessbuilding.buildmodifier.*;
+import nl.requios.effortlessbuilding.compatibility.CompatHelper;
+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;
+
+public class BuildModes {
+
+    //Static variables are shared between client and server in singleplayer
+    //We need them separate
+    public static Dictionary<EntityPlayer, Boolean> currentlyBreakingClient = new Hashtable<>();
+    public static Dictionary<EntityPlayer, Boolean> currentlyBreakingServer = new Hashtable<>();
+
+    public enum BuildModeEnum {
+        NORMAL("effortlessbuilding.mode.normal", new Normal(), new ActionEnum[]{}),
+        NORMAL_PLUS("effortlessbuilding.mode.normal_plus", new NormalPlus(), new ActionEnum[]{ActionEnum.NORMAL_SPEED, ActionEnum.FAST_SPEED}),
+        LINE("effortlessbuilding.mode.line", new Line(), new ActionEnum[]{/*ActionEnum.THICKNESS_1, ActionEnum.THICKNESS_3, ActionEnum.THICKNESS_5*/}),
+        WALL("effortlessbuilding.mode.wall", new Wall(), new ActionEnum[]{ActionEnum.FULL, ActionEnum.HOLLOW}),
+        FLOOR("effortlessbuilding.mode.floor", new Floor(), new ActionEnum[]{ActionEnum.FULL, ActionEnum.HOLLOW}),
+        DIAGONAL_LINE("effortlessbuilding.mode.diagonal_line", new DiagonalLine(), new ActionEnum[]{/*ActionEnum.THICKNESS_1, ActionEnum.THICKNESS_3, ActionEnum.THICKNESS_5*/}),
+        DIAGONAL_WALL("effortlessbuilding.mode.diagonal_wall", new DiagonalWall(), new ActionEnum[]{/*ActionEnum.FULL, ActionEnum.HOLLOW*/}),
+        SLOPE_FLOOR("effortlessbuilding.mode.slope_floor", new SlopeFloor(), new ActionEnum[]{ActionEnum.SHORT_EDGE, ActionEnum.LONG_EDGE}),
+        CUBE("effortlessbuilding.mode.cube", new Cube(), new ActionEnum[]{ActionEnum.CUBE_FULL, ActionEnum.CUBE_HOLLOW, ActionEnum.CUBE_SKELETON});
+
+        public String name;
+        public IBuildMode instance;
+        public ActionEnum[] options;
+
+        BuildModeEnum(String name, IBuildMode instance, ActionEnum[] 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(EntityPlayer player, BlockPlacedMessage message) {
+
+        //Check if not in the middle of breaking
+        Dictionary<EntityPlayer, 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
+            boolean replaceable = player.world.getBlockState(startPos).getBlock().isReplaceable(player.world, startPos);
+            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);
+        }
+
+        EnumFacing 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(EntityPlayer player, BlockBrokenMessage message) {
+        BlockPos startPos = message.isBlockHit() ? message.getBlockPos() : null;
+        onBlockBroken(player, startPos, true);
+    }
+
+    public static void onBlockBroken(EntityPlayer player, BlockPos startPos, boolean breakStartPos) {
+
+        //Check if not in the middle of placing
+        Dictionary<EntityPlayer, Boolean> currentlyBreaking = player.world.isRemote ? currentlyBreakingClient : currentlyBreakingServer;
+        if (currentlyBreaking.get(player) != null && !currentlyBreaking.get(player)) {
+            //Cancel placing
+            initializeMode(player);
+            return;
+        }
+
+        if (!ReachHelper.canBreakFar(player)) return;
+
+        //If first click
+        if (currentlyBreaking.get(player) == null) {
+            //If startpos is null, dont do anything
+            if (startPos == null) return;
+        }
+
+        //Get coordinates
+        ModeSettingsManager.ModeSettings modeSettings = ModeSettingsManager.getModeSettings(player);
+        BuildModeEnum buildMode = modeSettings.getBuildMode();
+        List<BlockPos> coordinates = buildMode.instance.onRightClick(player, startPos, EnumFacing.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(EntityPlayer 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(EntityPlayer player) {
+        //Resetting mode, so not placing or breaking
+        Dictionary<EntityPlayer, Boolean> currentlyBreaking = player.world.isRemote ? currentlyBreakingClient : currentlyBreakingServer;
+        currentlyBreaking.remove(player);
+
+        ModeSettingsManager.getModeSettings(player).getBuildMode().instance.initialize(player);
+    }
+
+    public static boolean isCurrentlyPlacing(EntityPlayer player) {
+        Dictionary<EntityPlayer, Boolean> currentlyBreaking = player.world.isRemote ? currentlyBreakingClient : currentlyBreakingServer;
+        return currentlyBreaking.get(player) != null && !currentlyBreaking.get(player);
+    }
+
+    public static boolean isCurrentlyBreaking(EntityPlayer player) {
+        Dictionary<EntityPlayer, Boolean> currentlyBreaking = player.world.isRemote ? currentlyBreakingClient : currentlyBreakingServer;
+        return currentlyBreaking.get(player) != null && currentlyBreaking.get(player);
+    }
+
+    //Either placing or breaking
+    public static boolean isActive(EntityPlayer player) {
+        Dictionary<EntityPlayer, Boolean> currentlyBreaking = player.world.isRemote ? currentlyBreakingClient : currentlyBreakingServer;
+        return currentlyBreaking.get(player) != null;
+    }
+
+
+    //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);
+    }
+
+}

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

@@ -0,0 +1,208 @@
+package nl.requios.effortlessbuilding.buildmode;
+
+import net.minecraft.entity.player.EntityPlayer;
+import net.minecraft.util.EnumFacing;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.math.Vec3d;
+import nl.requios.effortlessbuilding.helper.ReachHelper;
+
+import java.util.*;
+
+public class Cube 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
+    private Dictionary<UUID, Integer> rightClickClientTable = new Hashtable<>();
+    private Dictionary<UUID, Integer> rightClickServerTable = new Hashtable<>();
+    private Dictionary<UUID, BlockPos> firstPosTable = new Hashtable<>();
+    private Dictionary<UUID, BlockPos> secondPosTable = new Hashtable<>();
+    private Dictionary<UUID, EnumFacing> sideHitTable = new Hashtable<>();
+    private Dictionary<UUID, Vec3d> hitVecTable = new Hashtable<>();
+
+    @Override
+    public void initialize(EntityPlayer player) {
+        rightClickClientTable.put(player.getUniqueID(), 0);
+        rightClickServerTable.put(player.getUniqueID(), 0);
+        firstPosTable.put(player.getUniqueID(), BlockPos.ORIGIN);
+        sideHitTable.put(player.getUniqueID(), EnumFacing.UP);
+        hitVecTable.put(player.getUniqueID(), Vec3d.ZERO);
+    }
+
+    @Override
+    public List<BlockPos> onRightClick(EntityPlayer player, BlockPos blockPos, EnumFacing 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 = Floor.findFloor(player, firstPos, skipRaytrace);
+
+            if (secondPos == null) {
+                rightClickTable.put(player.getUniqueID(), 1);
+                return list;
+            }
+
+            secondPosTable.put(player.getUniqueID(), secondPos);
+
+        } else {
+            //Third click, place cube with height
+            list = findCoordinates(player, blockPos, skipRaytrace);
+            rightClickTable.put(player.getUniqueID(), 0);
+        }
+
+        return list;
+    }
+
+    @Override
+    public List<BlockPos> findCoordinates(EntityPlayer 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 = Floor.findFloor(player, firstPos, skipRaytrace);
+            if (secondPos == null) return list;
+
+            //Add whole floor
+            //Limit amount of blocks you can place per row
+            int axisLimit = ReachHelper.getMaxBlocksPerAxis(player);
+
+            int x1 = firstPos.getX(), x2 = secondPos.getX();
+            int y = firstPos.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 (z2 - z1 >= axisLimit) z2 = z1 + axisLimit - 1;
+            if (z1 - z2 >= axisLimit) z2 = z1 - axisLimit + 1;
+
+            if (ModeOptions.getCubeFill() == ModeOptions.ActionEnum.CUBE_SKELETON) {
+                //Hollow floor
+                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);
+            } else {
+                //Filled floor
+                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));
+                    }
+                }
+            }
+
+        } else {
+            BlockPos firstPos = firstPosTable.get(player.getUniqueID());
+            BlockPos secondPos = secondPosTable.get(player.getUniqueID());
+
+            BlockPos thirdPos = DiagonalLine.findHeight(player, secondPos, skipRaytrace);
+            if (thirdPos == null) return list;
+
+            //Add whole cube
+            //Limit amount of blocks you can place per row
+            int axisLimit = ReachHelper.getMaxBlocksPerAxis(player);
+
+            int x1 = firstPos.getX(), x2 = thirdPos.getX();
+            int y1 = firstPos.getY(), y2 = thirdPos.getY();
+            int z1 = firstPos.getZ(), z2 = 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;
+
+            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);
+    }
+
+    @Override
+    public EnumFacing getSideHit(EntityPlayer player) {
+        return sideHitTable.get(player.getUniqueID());
+    }
+
+    @Override
+    public Vec3d getHitVec(EntityPlayer player) {
+        return hitVecTable.get(player.getUniqueID());
+    }
+
+}

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

@@ -0,0 +1,228 @@
+package nl.requios.effortlessbuilding.buildmode;
+
+import net.minecraft.entity.player.EntityPlayer;
+import net.minecraft.util.EnumFacing;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.math.RayTraceResult;
+import net.minecraft.util.math.Vec3d;
+import nl.requios.effortlessbuilding.helper.ReachHelper;
+
+import java.util.*;
+
+public class DiagonalLine 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
+    private Dictionary<UUID, Integer> rightClickClientTable = new Hashtable<>();
+    private Dictionary<UUID, Integer> rightClickServerTable = new Hashtable<>();
+    private Dictionary<UUID, BlockPos> firstPosTable = new Hashtable<>();
+    private Dictionary<UUID, BlockPos> secondPosTable = new Hashtable<>();
+    private Dictionary<UUID, EnumFacing> sideHitTable = new Hashtable<>();
+    private Dictionary<UUID, Vec3d> hitVecTable = 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, EntityPlayer player, boolean skipRaytrace) {
+
+            boolean intersects = false;
+            if (!skipRaytrace) {
+                //collision within a 1 block radius to selected is fine
+                RayTraceResult rayTraceResult = player.world.rayTraceBlocks(start, lineBound, false, true, false);
+                intersects = rayTraceResult != null && rayTraceResult.typeOfHit == RayTraceResult.Type.BLOCK &&
+                             planeBound.subtract(rayTraceResult.hitVec).lengthSquared() > 4;
+            }
+
+            return planeBound.subtract(start).dotProduct(look) > 0 &&
+                   distToPlayerSq > 2 && distToPlayerSq < reach * reach &&
+                   !intersects;
+        }
+    }
+    
+    @Override
+    public void initialize(EntityPlayer player) {
+        rightClickClientTable.put(player.getUniqueID(), 0);
+        rightClickServerTable.put(player.getUniqueID(), 0);
+        firstPosTable.put(player.getUniqueID(), BlockPos.ORIGIN);
+        sideHitTable.put(player.getUniqueID(), EnumFacing.UP);
+        hitVecTable.put(player.getUniqueID(), Vec3d.ZERO);
+    }
+
+    @Override
+    public List<BlockPos> onRightClick(EntityPlayer player, BlockPos blockPos, EnumFacing 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 = Floor.findFloor(player, firstPos, true);
+
+            if (secondPos == null) {
+                rightClickTable.put(player.getUniqueID(), 1);
+                return list;
+            }
+
+            secondPosTable.put(player.getUniqueID(), secondPos);
+
+        } else {
+            //Third click, place diagonal line with height
+            list = findCoordinates(player, blockPos, skipRaytrace);
+            rightClickTable.put(player.getUniqueID(), 0);
+        }
+
+        return list;
+    }
+
+    @Override
+    public List<BlockPos> findCoordinates(EntityPlayer 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 = Floor.findFloor(player, firstPos, true);
+            if (secondPos == null) return list;
+
+            //Add diagonal line from first to second
+            list.addAll(getDiagonalLineBlocks(player , firstPos, secondPos, 10));
+
+        } else {
+            BlockPos firstPos = firstPosTable.get(player.getUniqueID());
+            BlockPos secondPos = secondPosTable.get(player.getUniqueID());
+
+            BlockPos thirdPos = findHeight(player, secondPos, skipRaytrace);
+            if (thirdPos == null) return list;
+
+            //Add diagonal line from first to third
+            list.addAll(getDiagonalLineBlocks(player , firstPos, thirdPos, 10));
+        }
+
+        return list;
+    }
+    
+    //Finds height after floor has been chosen in buildmodes with 3 clicks
+    public static BlockPos findHeight(EntityPlayer player, BlockPos secondPos, boolean skipRaytrace) {
+        Vec3d look = player.getLookVec();
+        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);
+    }
+
+    //Add diagonal line from first to second
+    public static List<BlockPos> getDiagonalLineBlocks(EntityPlayer player, BlockPos firstPos, BlockPos secondPos, float sampleMultiplier) {
+        List<BlockPos> list = new ArrayList<>();
+
+        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;
+
+        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;
+    }
+
+    @Override
+    public EnumFacing getSideHit(EntityPlayer player) {
+        return sideHitTable.get(player.getUniqueID());
+    }
+
+    @Override
+    public Vec3d getHitVec(EntityPlayer player) {
+        return hitVecTable.get(player.getUniqueID());
+    }
+}

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

@@ -0,0 +1,138 @@
+package nl.requios.effortlessbuilding.buildmode;
+
+import net.minecraft.entity.player.EntityPlayer;
+import net.minecraft.util.EnumFacing;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.math.Vec3d;
+import nl.requios.effortlessbuilding.helper.ReachHelper;
+
+import java.util.*;
+
+public class DiagonalWall 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
+    private Dictionary<UUID, Integer> rightClickClientTable = new Hashtable<>();
+    private Dictionary<UUID, Integer> rightClickServerTable = new Hashtable<>();
+    private Dictionary<UUID, BlockPos> firstPosTable = new Hashtable<>();
+    private Dictionary<UUID, BlockPos> secondPosTable = new Hashtable<>();
+    private Dictionary<UUID, EnumFacing> sideHitTable = new Hashtable<>();
+    private Dictionary<UUID, Vec3d> hitVecTable = new Hashtable<>();
+
+    @Override
+    public void initialize(EntityPlayer player) {
+        rightClickClientTable.put(player.getUniqueID(), 0);
+        rightClickServerTable.put(player.getUniqueID(), 0);
+        firstPosTable.put(player.getUniqueID(), BlockPos.ORIGIN);
+        sideHitTable.put(player.getUniqueID(), EnumFacing.UP);
+        hitVecTable.put(player.getUniqueID(), Vec3d.ZERO);
+    }
+
+    @Override
+    public List<BlockPos> onRightClick(EntityPlayer player, BlockPos blockPos, EnumFacing 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 = Floor.findFloor(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(EntityPlayer 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 = Floor.findFloor(player, firstPos, true);
+            if (secondPos == null) return list;
+
+            //Add diagonal line
+            list.addAll(DiagonalLine.getDiagonalLineBlocks(player, firstPos, secondPos, 1));
+
+        } else {
+            BlockPos firstPos = firstPosTable.get(player.getUniqueID());
+            BlockPos secondPos = secondPosTable.get(player.getUniqueID());
+
+            BlockPos thirdPos = DiagonalLine.findHeight(player, secondPos, skipRaytrace);
+            if (thirdPos == null) return list;
+
+            //Add diagonal wall
+            list.addAll(getDiagonalWallBlocks(player, firstPos, secondPos, thirdPos));
+        }
+
+        return list;
+    }
+
+    //Add diagonal wall from first to second
+    public static List<BlockPos> getDiagonalWallBlocks(EntityPlayer player, BlockPos firstPos, BlockPos secondPos, BlockPos thirdPos) {
+        List<BlockPos> list = new ArrayList<>();
+
+        int axisLimit = ReachHelper.getMaxBlocksPerAxis(player);
+
+        //Get diagonal line blocks
+        List<BlockPos> diagonalLineBlocks = DiagonalLine.getDiagonalLineBlocks(player, firstPos, secondPos, 1);
+
+        //Limit amount of blocks we can place
+        int lowest = Math.min(firstPos.getY(), thirdPos.getY());
+        int highest = Math.max(firstPos.getY(), thirdPos.getY());
+
+        if (highest - lowest >= axisLimit) highest = lowest + axisLimit - 1;
+
+        //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;
+    }
+
+    @Override
+    public EnumFacing getSideHit(EntityPlayer player) {
+        return sideHitTable.get(player.getUniqueID());
+    }
+
+    @Override
+    public Vec3d getHitVec(EntityPlayer player) {
+        return hitVecTable.get(player.getUniqueID());
+    }
+}

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

@@ -0,0 +1,183 @@
+package nl.requios.effortlessbuilding.buildmode;
+
+import net.minecraft.entity.player.EntityPlayer;
+import net.minecraft.util.EnumFacing;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.math.RayTraceResult;
+import net.minecraft.util.math.Vec3d;
+import nl.requios.effortlessbuilding.helper.ReachHelper;
+
+import java.util.*;
+
+public class Floor 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
+    private Dictionary<UUID, Integer> rightClickClientTable = new Hashtable<>();
+    private Dictionary<UUID, Integer> rightClickServerTable = new Hashtable<>();
+    private Dictionary<UUID, BlockPos> firstPosTable = new Hashtable<>();
+    private Dictionary<UUID, EnumFacing> sideHitTable = new Hashtable<>();
+    private Dictionary<UUID, Vec3d> hitVecTable = new Hashtable<>();
+
+    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, EntityPlayer player, boolean skipRaytrace) {
+
+            boolean intersects = false;
+            if (!skipRaytrace) {
+                //collision within a 1 block radius to selected is fine
+                RayTraceResult rayTraceResult = player.world.rayTraceBlocks(start, planeBound, false, true, false);
+                intersects = rayTraceResult != null && rayTraceResult.typeOfHit == RayTraceResult.Type.BLOCK &&
+                    planeBound.subtract(rayTraceResult.hitVec).lengthSquared() > 4;
+            }
+
+            return planeBound.subtract(start).dotProduct(look) > 0 &&
+                   distToPlayerSq > 2 && distToPlayerSq < reach * reach &&
+                   !intersects;
+        }
+    }
+
+    @Override
+    public void initialize(EntityPlayer player) {
+        rightClickClientTable.put(player.getUniqueID(), 0);
+        rightClickServerTable.put(player.getUniqueID(), 0);
+        firstPosTable.put(player.getUniqueID(), BlockPos.ORIGIN);
+        sideHitTable.put(player.getUniqueID(), EnumFacing.UP);
+        hitVecTable.put(player.getUniqueID(), Vec3d.ZERO);
+    }
+
+    @Override
+    public List<BlockPos> onRightClick(EntityPlayer player, BlockPos blockPos, EnumFacing 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 wall
+
+            list = findCoordinates(player, blockPos, skipRaytrace);
+            rightClickTable.put(player.getUniqueID(), 0);
+        }
+
+        return list;
+    }
+
+    @Override
+    public List<BlockPos> findCoordinates(EntityPlayer 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 = findFloor(player, firstPos, skipRaytrace);
+            if (secondPos == null) return list;
+
+            //Add whole floor
+            list.addAll(getFloorBlocks(player, firstPos, secondPos));
+        }
+
+        return list;
+    }
+
+    public static BlockPos findFloor(EntityPlayer player, BlockPos firstPos, boolean skipRaytrace) {
+        Vec3d look = player.getLookVec();
+        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);
+    }
+
+    public static List<BlockPos> getFloorBlocks(EntityPlayer player, BlockPos firstPos, BlockPos secondPos) {
+        List<BlockPos> list = new ArrayList<>();
+
+        //Limit amount of blocks you can place per row
+        int axisLimit = ReachHelper.getMaxBlocksPerAxis(player);
+
+        int x1 = firstPos.getX(), x2 = secondPos.getX();
+        int y = firstPos.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 (z2 - z1 >= axisLimit) z2 = z1 + axisLimit - 1;
+        if (z1 - z2 >= axisLimit) z2 = z1 - axisLimit + 1;
+
+        if (ModeOptions.getFill() == ModeOptions.ActionEnum.FULL)
+            addFloorBlocks(list, x1, x2, y, z1, z2);
+        else
+            addHollowFloorBlocks(list, x1, x2, y, 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);
+    }
+
+    @Override
+    public EnumFacing getSideHit(EntityPlayer player) {
+        return sideHitTable.get(player.getUniqueID());
+    }
+
+    @Override
+    public Vec3d getHitVec(EntityPlayer player) {
+        return hitVecTable.get(player.getUniqueID());
+    }
+}

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

@@ -0,0 +1,25 @@
+package nl.requios.effortlessbuilding.buildmode;
+
+import net.minecraft.entity.player.EntityPlayer;
+import net.minecraft.util.EnumFacing;
+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(EntityPlayer player);
+
+    //Fired when a block would be placed
+    //Return a list of coordinates where you want to place blocks
+    List<BlockPos> onRightClick(EntityPlayer player, BlockPos blockPos, EnumFacing sideHit, Vec3d hitVec, boolean skipRaytrace);
+
+    //Fired continuously for visualization purposes
+    List<BlockPos> findCoordinates(EntityPlayer player, BlockPos blockPos, boolean skipRaytrace);
+
+    EnumFacing getSideHit(EntityPlayer player);
+
+    Vec3d getHitVec(EntityPlayer player);
+}

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

@@ -0,0 +1,239 @@
+package nl.requios.effortlessbuilding.buildmode;
+
+import net.minecraft.entity.player.EntityPlayer;
+import net.minecraft.util.EnumFacing;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.math.RayTraceResult;
+import net.minecraft.util.math.Vec3d;
+import nl.requios.effortlessbuilding.helper.ReachHelper;
+
+import java.util.*;
+
+public class Line 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
+    private Dictionary<UUID, Integer> rightClickClientTable = new Hashtable<>();
+    private Dictionary<UUID, Integer> rightClickServerTable = new Hashtable<>();
+    private Dictionary<UUID, BlockPos> firstPosTable = new Hashtable<>();
+    private Dictionary<UUID, EnumFacing> sideHitTable = new Hashtable<>();
+    private Dictionary<UUID, Vec3d> hitVecTable = new Hashtable<>();
+
+    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, EntityPlayer player, boolean skipRaytrace) {
+
+            boolean intersects = false;
+            if (!skipRaytrace) {
+                //collision within a 1 block radius to selected is fine
+                RayTraceResult rayTraceResult = player.world.rayTraceBlocks(start, lineBound, false, true, false);
+                intersects = rayTraceResult != null && rayTraceResult.typeOfHit == RayTraceResult.Type.BLOCK &&
+                             planeBound.subtract(rayTraceResult.hitVec).lengthSquared() > 4;
+            }
+
+            return planeBound.subtract(start).dotProduct(look) > 0 &&
+                   distToPlayerSq > 2 && distToPlayerSq < reach * reach &&
+                   !intersects;
+        }
+    }
+
+    @Override
+    public void initialize(EntityPlayer player) {
+        rightClickClientTable.put(player.getUniqueID(), 0);
+        rightClickServerTable.put(player.getUniqueID(), 0);
+        firstPosTable.put(player.getUniqueID(), BlockPos.ORIGIN);
+        sideHitTable.put(player.getUniqueID(), EnumFacing.UP);
+        hitVecTable.put(player.getUniqueID(), Vec3d.ZERO);
+    }
+
+    @Override
+    public List<BlockPos> onRightClick(EntityPlayer player, BlockPos blockPos, EnumFacing 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 wall
+
+            list = findCoordinates(player, blockPos, skipRaytrace);
+            rightClickTable.put(player.getUniqueID(), 0);
+        }
+
+        return list;
+    }
+
+    @Override
+    public List<BlockPos> findCoordinates(EntityPlayer 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 = findLine(player, firstPos, skipRaytrace);
+            if (secondPos == null) return list;
+
+            list.addAll(getLineBlocks(player, firstPos, secondPos));
+        }
+
+        return list;
+    }
+
+    public static BlockPos findLine(EntityPlayer player, BlockPos firstPos, boolean skipRaytrace) {
+        Vec3d look = player.getLookVec();
+        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);
+    }
+
+    public static List<BlockPos> getLineBlocks(EntityPlayer player, BlockPos firstPos, BlockPos secondPos) {
+        List<BlockPos> list = new ArrayList<>();
+
+        //Limit amount of blocks we can place
+        int axisLimit = ReachHelper.getMaxBlocksPerAxis(player);
+
+        //Add whole line
+        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;
+
+        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));
+        }
+    }
+
+    @Override
+    public EnumFacing getSideHit(EntityPlayer player) {
+        return sideHitTable.get(player.getUniqueID());
+    }
+
+    @Override
+    public Vec3d getHitVec(EntityPlayer player) {
+        return hitVecTable.get(player.getUniqueID());
+    }
+
+}

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

@@ -0,0 +1,132 @@
+package nl.requios.effortlessbuilding.buildmode;
+
+import net.minecraft.entity.player.EntityPlayer;
+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");
+
+        public String name;
+
+        ActionEnum(String name) {
+            this.name = name;
+        }
+    }
+
+    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;
+
+    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;
+    }
+
+    //Called on both client and server
+    public static void performAction(EntityPlayer 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;
+        }
+
+        if (player.world.isRemote && action != ActionEnum.REPLACE && action != ActionEnum.OPEN_MODIFIER_SETTINGS) {
+            ClientProxy.logTranslate(action.name);
+        }
+    }
+}

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

@@ -0,0 +1,86 @@
+package nl.requios.effortlessbuilding.buildmode;
+
+import net.minecraft.entity.player.EntityPlayer;
+import net.minecraft.entity.player.EntityPlayerMP;
+import net.minecraftforge.fml.common.Mod;
+import nl.requios.effortlessbuilding.EffortlessBuilding;
+import nl.requios.effortlessbuilding.capability.ModeCapabilityManager;
+import nl.requios.effortlessbuilding.helper.ReachHelper;
+import nl.requios.effortlessbuilding.network.ModeSettingsMessage;
+
+@Mod.EventBusSubscriber
+public class ModeSettingsManager {
+
+    //Retrieves the buildsettings of a player through the modifierCapability capability
+    //Never returns null
+    public static ModeSettings getModeSettings(EntityPlayer player) {
+        if (player.hasCapability(ModeCapabilityManager.modeCapability, null)) {
+            ModeCapabilityManager.IModeCapability capability = player.getCapability(
+                    ModeCapabilityManager.modeCapability, null);
+            if (capability.getModeData() == null) {
+                capability.setModeData(new ModeSettings());
+            }
+            return capability.getModeData();
+        }
+        throw new IllegalArgumentException("Player does not have modeCapability capability");
+    }
+
+    public static void setModeSettings(EntityPlayer player, ModeSettings modeSettings) {
+        if (player == null) {
+            EffortlessBuilding.log("Cannot set buildsettings, player is null");
+            return;
+        }
+        if (player.hasCapability(ModeCapabilityManager.modeCapability, null)) {
+            ModeCapabilityManager.IModeCapability capability = player.getCapability(
+                    ModeCapabilityManager.modeCapability, null);
+
+            capability.setModeData(modeSettings);
+
+            //Initialize new mode
+            BuildModes.initializeMode(player);
+        } else {
+            EffortlessBuilding.log(player, "Saving buildsettings failed.");
+        }
+    }
+
+    public static String sanitize(ModeSettings modeSettings, EntityPlayer 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(EntityPlayer player){
+        if (getModeSettings(player) == null) {
+            setModeSettings(player, new ModeSettings());
+        }
+
+        //Only on server
+        if (!player.world.isRemote) {
+            //Send to client
+            ModeSettingsMessage msg = new ModeSettingsMessage(getModeSettings(player));
+            EffortlessBuilding.packetHandler.sendTo(msg, (EntityPlayerMP) player);
+        }
+    }
+}

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

@@ -0,0 +1,40 @@
+package nl.requios.effortlessbuilding.buildmode;
+
+import net.minecraft.entity.player.EntityPlayer;
+import net.minecraft.util.EnumFacing;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.math.Vec3d;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class Normal implements IBuildMode {
+    @Override
+    public void initialize(EntityPlayer player) {
+
+    }
+
+    @Override
+    public List<BlockPos> onRightClick(EntityPlayer player, BlockPos blockPos, EnumFacing sideHit, Vec3d hitVec, boolean skipRaytrace) {
+        List<BlockPos> list = new ArrayList<>();
+        if (blockPos != null) list.add(blockPos);
+        return list;
+    }
+
+    @Override
+    public List<BlockPos> findCoordinates(EntityPlayer player, BlockPos blockPos, boolean skipRaytrace) {
+        List<BlockPos> list = new ArrayList<>();
+        if (blockPos != null) list.add(blockPos);
+        return list;
+    }
+
+    @Override
+    public EnumFacing getSideHit(EntityPlayer player) {
+        return null;
+    }
+
+    @Override
+    public Vec3d getHitVec(EntityPlayer player) {
+        return null;
+    }
+}

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

@@ -0,0 +1,40 @@
+package nl.requios.effortlessbuilding.buildmode;
+
+import net.minecraft.entity.player.EntityPlayer;
+import net.minecraft.util.EnumFacing;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.math.Vec3d;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class NormalPlus implements IBuildMode {
+    @Override
+    public void initialize(EntityPlayer player) {
+
+    }
+
+    @Override
+    public List<BlockPos> onRightClick(EntityPlayer player, BlockPos blockPos, EnumFacing sideHit, Vec3d hitVec, boolean skipRaytrace) {
+        List<BlockPos> list = new ArrayList<>();
+        if (blockPos != null) list.add(blockPos);
+        return list;
+    }
+
+    @Override
+    public List<BlockPos> findCoordinates(EntityPlayer player, BlockPos blockPos, boolean skipRaytrace) {
+        List<BlockPos> list = new ArrayList<>();
+        if (blockPos != null) list.add(blockPos);
+        return list;
+    }
+
+    @Override
+    public EnumFacing getSideHit(EntityPlayer player) {
+        return null;
+    }
+
+    @Override
+    public Vec3d getHitVec(EntityPlayer player) {
+        return null;
+    }
+}

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

@@ -0,0 +1,178 @@
+package nl.requios.effortlessbuilding.buildmode;
+
+import net.minecraft.entity.player.EntityPlayer;
+import net.minecraft.util.EnumFacing;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.math.Vec3d;
+import nl.requios.effortlessbuilding.helper.ReachHelper;
+
+import java.util.*;
+
+public class SlopeFloor 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
+    private Dictionary<UUID, Integer> rightClickClientTable = new Hashtable<>();
+    private Dictionary<UUID, Integer> rightClickServerTable = new Hashtable<>();
+    private Dictionary<UUID, BlockPos> firstPosTable = new Hashtable<>();
+    private Dictionary<UUID, BlockPos> secondPosTable = new Hashtable<>();
+    private Dictionary<UUID, EnumFacing> sideHitTable = new Hashtable<>();
+    private Dictionary<UUID, Vec3d> hitVecTable = new Hashtable<>();
+
+    @Override
+    public void initialize(EntityPlayer player) {
+        rightClickClientTable.put(player.getUniqueID(), 0);
+        rightClickServerTable.put(player.getUniqueID(), 0);
+        firstPosTable.put(player.getUniqueID(), BlockPos.ORIGIN);
+        sideHitTable.put(player.getUniqueID(), EnumFacing.UP);
+        hitVecTable.put(player.getUniqueID(), Vec3d.ZERO);
+    }
+
+    @Override
+    public List<BlockPos> onRightClick(EntityPlayer player, BlockPos blockPos, EnumFacing 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 = Floor.findFloor(player, firstPos, true);
+
+            if (secondPos == null) {
+                rightClickTable.put(player.getUniqueID(), 1);
+                return list;
+            }
+
+            secondPosTable.put(player.getUniqueID(), secondPos);
+
+        } else {
+            //Third click, place slope floor with height
+            list = findCoordinates(player, blockPos, skipRaytrace);
+            rightClickTable.put(player.getUniqueID(), 0);
+        }
+
+        return list;
+    }
+
+    @Override
+    public List<BlockPos> findCoordinates(EntityPlayer 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 = Floor.findFloor(player, firstPos, true);
+            if (secondPos == null) return list;
+
+            //Add whole floor
+            list.addAll(Floor.getFloorBlocks(player, firstPos, secondPos));
+
+        } else {
+            BlockPos firstPos = firstPosTable.get(player.getUniqueID());
+            BlockPos secondPos = secondPosTable.get(player.getUniqueID());
+
+            BlockPos thirdPos = DiagonalLine.findHeight(player, secondPos, skipRaytrace);
+            if (thirdPos == null) return list;
+
+            //Add slope floor blocks
+            list.addAll(getSlopeFloorBlocks(player, firstPos, secondPos, thirdPos));
+        }
+
+        return list;
+    }
+
+    //Add slope floor from first to second
+    public static List<BlockPos> getSlopeFloorBlocks(EntityPlayer player, BlockPos firstPos, BlockPos secondPos, BlockPos thirdPos) {
+        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(secondPos.getX() - firstPos.getX());
+        int zLength = Math.abs(secondPos.getZ() - firstPos.getZ());
+
+        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
+            BlockPos linePoint = new BlockPos(secondPos.getX(), thirdPos.getY(), firstPos.getZ());
+            List<BlockPos> diagonalLineBlocks = DiagonalLine.getDiagonalLineBlocks(player, firstPos, linePoint, 1f);
+
+            //Limit amount of blocks we can place
+            int lowest = Math.min(firstPos.getZ(), secondPos.getZ());
+            int highest = Math.max(firstPos.getZ(), secondPos.getZ());
+
+            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
+            BlockPos linePoint = new BlockPos(firstPos.getX(), thirdPos.getY(), secondPos.getZ());
+            List<BlockPos> diagonalLineBlocks = DiagonalLine.getDiagonalLineBlocks(player, firstPos, linePoint, 1f);
+
+            //Limit amount of blocks we can place
+            int lowest = Math.min(firstPos.getX(), secondPos.getX());
+            int highest = Math.max(firstPos.getX(), secondPos.getX());
+
+            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;
+    }
+
+    @Override
+    public EnumFacing getSideHit(EntityPlayer player) {
+        return sideHitTable.get(player.getUniqueID());
+    }
+
+    @Override
+    public Vec3d getHitVec(EntityPlayer player) {
+        return hitVecTable.get(player.getUniqueID());
+    }
+}

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

@@ -0,0 +1,226 @@
+package nl.requios.effortlessbuilding.buildmode;
+
+import net.minecraft.entity.player.EntityPlayer;
+import net.minecraft.util.EnumFacing;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.math.RayTraceResult;
+import net.minecraft.util.math.Vec3d;
+import nl.requios.effortlessbuilding.helper.ReachHelper;
+
+import java.util.*;
+
+public class Wall 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
+    private Dictionary<UUID, Integer> rightClickClientTable = new Hashtable<>();
+    private Dictionary<UUID, Integer> rightClickServerTable = new Hashtable<>();
+    private Dictionary<UUID, BlockPos> firstPosTable = new Hashtable<>();
+    private Dictionary<UUID, EnumFacing> sideHitTable = new Hashtable<>();
+    private Dictionary<UUID, Vec3d> hitVecTable = new Hashtable<>();
+
+    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, EntityPlayer player, boolean skipRaytrace) {
+
+            boolean intersects = false;
+            if (!skipRaytrace) {
+                //collision within a 1 block radius to selected is fine
+                RayTraceResult rayTraceResult = player.world.rayTraceBlocks(start, planeBound, false, true, false);
+                intersects = rayTraceResult != null && rayTraceResult.typeOfHit == RayTraceResult.Type.BLOCK &&
+                             planeBound.subtract(rayTraceResult.hitVec).lengthSquared() > 4;
+            }
+
+            return planeBound.subtract(start).dotProduct(look) > 0 &&
+                   distToPlayerSq > 2 && distToPlayerSq < reach * reach &&
+                   !intersects;
+        }
+    }
+
+    @Override
+    public void initialize(EntityPlayer player) {
+        rightClickClientTable.put(player.getUniqueID(), 0);
+        rightClickServerTable.put(player.getUniqueID(), 0);
+        firstPosTable.put(player.getUniqueID(), BlockPos.ORIGIN);
+        sideHitTable.put(player.getUniqueID(), EnumFacing.UP);
+        hitVecTable.put(player.getUniqueID(), Vec3d.ZERO);
+    }
+
+    @Override
+    public List<BlockPos> onRightClick(EntityPlayer player, BlockPos blockPos, EnumFacing 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 wall
+
+            list = findCoordinates(player, blockPos, skipRaytrace);
+            rightClickTable.put(player.getUniqueID(), 0);
+        }
+
+        return list;
+    }
+
+    @Override
+    public List<BlockPos> findCoordinates(EntityPlayer 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 = findWall(player, firstPos, skipRaytrace);
+            if (secondPos == null) return list;
+
+            //Add whole wall
+            list.addAll(getWallBlocks(player, firstPos, secondPos));
+        }
+
+        return list;
+    }
+
+    public static BlockPos findWall(EntityPlayer player, BlockPos firstPos, boolean skipRaytrace) {
+        Vec3d look = player.getLookVec();
+        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);
+    }
+
+    public static List<BlockPos> getWallBlocks(EntityPlayer player, BlockPos firstPos, BlockPos secondPos) {
+        List<BlockPos> list = new ArrayList<>();
+
+        //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;
+
+        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);
+    }
+
+    @Override
+    public EnumFacing getSideHit(EntityPlayer player) {
+        return sideHitTable.get(player.getUniqueID());
+    }
+
+    @Override
+    public Vec3d getHitVec(EntityPlayer player) {
+        return hitVecTable.get(player.getUniqueID());
+    }
+}

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

@@ -1,4 +1,4 @@
-package nl.requios.effortlessbuilding;
+package nl.requios.effortlessbuilding.buildmodifier;
 
 import net.minecraft.block.state.IBlockState;
 import net.minecraft.entity.player.EntityPlayer;
@@ -45,7 +45,7 @@ public class Array {
         List<BlockPos> coordinates = new ArrayList<>();
 
         //find arraysettings for the player
-        ArraySettings a = BuildSettingsManager.getBuildSettings(player).getArraySettings();
+        ArraySettings a = ModifierSettingsManager.getModifierSettings(player).getArraySettings();
         if (!isEnabled(a)) return coordinates;
 
         BlockPos pos = startPos;
@@ -63,7 +63,7 @@ public class Array {
         List<IBlockState> blockStates = new ArrayList<>();
 
         //find arraysettings for the player that placed the block
-        ArraySettings a = BuildSettingsManager.getBuildSettings(player).getArraySettings();
+        ArraySettings a = ModifierSettingsManager.getModifierSettings(player).getArraySettings();
         if (!isEnabled(a)) return blockStates;
 
         BlockPos pos = startPos;
@@ -81,7 +81,8 @@ public class Array {
             //Randomizer bag synergy
             if (bagInventory != null) {
                 itemStack = ItemRandomizerBag.pickRandomStack(bagInventory);
-                blockState = BuildModifiers.getBlockStateFromItem(itemStack, player, startPos, EnumFacing.UP, new Vec3d(0, 0, 0), EnumHand.MAIN_HAND);
+                blockState = BuildModifiers
+                        .getBlockStateFromItem(itemStack, player, startPos, EnumFacing.UP, new Vec3d(0, 0, 0), EnumHand.MAIN_HAND);
             }
 
             //blockState = blockState.getBlock().getStateForPlacement(player.world, pos, )

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

@@ -0,0 +1,50 @@
+package nl.requios.effortlessbuilding.buildmodifier;
+
+import net.minecraft.block.state.IBlockState;
+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<IBlockState> previousBlockStates;
+    private List<IBlockState> newBlockStates;
+    private Vec3d hitVec;
+    private BlockPos firstPos;
+    private BlockPos secondPos;
+
+    public BlockSet(List<BlockPos> coordinates, List<IBlockState> previousBlockStates,  List<IBlockState> 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<IBlockState> getPreviousBlockStates() {
+        return previousBlockStates;
+    }
+
+    public List<IBlockState> 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 +1,236 @@
+package nl.requios.effortlessbuilding.buildmodifier;
+
+import net.minecraft.block.Block;
+import net.minecraft.block.state.IBlockState;
+import net.minecraft.entity.player.EntityPlayer;
+import net.minecraft.item.ItemBlock;
+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 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(EntityPlayer player, List<BlockPos> startCoordinates, EnumFacing 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<IBlockState> 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<IBlockState> previousBlockStates = new ArrayList<>(coordinates.size());
+        List<IBlockState> 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);
+                IBlockState blockState = blockStates.get(i);
+                ItemStack itemStack = itemStacks.get(i);
+
+                if (world.isBlockLoaded(blockPos, true)) {
+                    //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, EnumFacing.UP, hitVec, false, false, false);
+                }
+            }
+
+            //find actual new blockstates for undo
+            for (BlockPos coordinate : coordinates) {
+                newBlockStates.add(world.getBlockState(coordinate));
+            }
+        }
+
+        //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(EntityPlayer 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<IBlockState> previousBlockStates = new ArrayList<>(coordinates.size());
+        List<IBlockState> newBlockStates = new ArrayList<>(coordinates.size());
+        for (BlockPos coordinate : coordinates) {
+            previousBlockStates.add(world.getBlockState(coordinate));
+        }
+
+        if (world.isRemote) {
+            BlockPreviewRenderer.onBlocksBroken();
+
+            //list of air blockstates
+            for (BlockPos coordinate : coordinates) {
+                newBlockStates.add(Block.getBlockById(0).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.isBlockLoaded(coordinate, false)) {
+                    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));
+            }
+        }
+
+        //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(EntityPlayer 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(EntityPlayer player, BlockPos blockPos) {
+        return findCoordinates(player, new ArrayList<>(Arrays.asList(blockPos)));
+    }
+
+    public static List<IBlockState> findBlockStates(EntityPlayer player, List<BlockPos> posList, Vec3d hitVec, EnumFacing facing, List<ItemStack> itemStacks) {
+        List<IBlockState> blockStates = new ArrayList<>();
+        itemStacks.clear();
+
+        //Get itemstack
+        ItemStack itemStack = player.getHeldItem(EnumHand.MAIN_HAND);
+        if (itemStack.isEmpty() || !CompatHelper.isItemBlockProxy(itemStack)) {
+            itemStack = player.getHeldItem(EnumHand.OFF_HAND);
+        }
+        if (itemStack.isEmpty() || !CompatHelper.isItemBlockProxy(itemStack)) {
+            return blockStates;
+        }
+
+        //Get ItemBlock stack
+        ItemStack itemBlock = ItemStack.EMPTY;
+        if (itemStack.getItem() instanceof ItemBlock) itemBlock = itemStack;
+        else itemBlock = CompatHelper.getItemBlockFromStack(itemStack);
+        ItemRandomizerBag.resetRandomness();
+
+        //Add blocks in posList first
+        for (BlockPos blockPos : posList) {
+            if (!(itemStack.getItem() instanceof ItemBlock)) itemBlock = CompatHelper.getItemBlockFromStack(itemStack);
+            IBlockState blockState = getBlockStateFromItem(itemBlock, player, blockPos, facing, hitVec, EnumHand.MAIN_HAND);
+            blockStates.add(blockState);
+            itemStacks.add(itemBlock);
+        }
+
+        for (BlockPos blockPos : posList) {
+            IBlockState blockState = getBlockStateFromItem(itemBlock, player, blockPos, facing, hitVec, EnumHand.MAIN_HAND);
+
+            List<IBlockState> 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);
+                IBlockState 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 IBlockState getBlockStateFromItem(ItemStack itemStack, EntityPlayer player, BlockPos blockPos, EnumFacing facing, Vec3d hitVec, EnumHand hand) {
+        return Block.getBlockFromItem(itemStack.getItem()).getStateForPlacement(player.world, blockPos, facing,
+                ((float) hitVec.x), ((float) hitVec.y), ((float) hitVec.z), itemStack.getMetadata(), player, hand);
+    }
+
+    //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;
+
+        return coordinates1.equals(coordinates2);
+    }
+}

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

@@ -1,4 +1,4 @@
-package nl.requios.effortlessbuilding;
+package nl.requios.effortlessbuilding.buildmodifier;
 
 import net.minecraft.block.BlockDirectional;
 import net.minecraft.block.BlockDispenser;
@@ -23,7 +23,7 @@ public class Mirror {
         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 int radius = 10;
         public boolean drawLines = true, drawPlanes = true;
 
         public MirrorSettings() {
@@ -41,7 +41,7 @@ public class Mirror {
         }
 
         public int getReach() {
-            return radius * 2;
+            return radius * 2; //Change ModifierSettings#setReachUpgrade too
         }
     }
     
@@ -49,7 +49,7 @@ public class Mirror {
         List<BlockPos> coordinates = new ArrayList<>();
 
         //find mirrorsettings for the player
-        MirrorSettings m = BuildSettingsManager.getBuildSettings(player).getMirrorSettings();
+        MirrorSettings m = ModifierSettingsManager.getModifierSettings(player).getMirrorSettings();
         if (!isEnabled(m, startPos)) return coordinates;
 
         if (m.mirrorX) coordinateMirrorX(m, startPos, coordinates);
@@ -89,7 +89,7 @@ public class Mirror {
         List<IBlockState> blockStates = new ArrayList<>();
 
         //find mirrorsettings for the player
-        MirrorSettings m = BuildSettingsManager.getBuildSettings(player).getMirrorSettings();
+        MirrorSettings m = ModifierSettingsManager.getModifierSettings(player).getMirrorSettings();
         if (!isEnabled(m, startPos)) return blockStates;
 
         //Randomizer bag synergy

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

@@ -1,51 +1,51 @@
-package nl.requios.effortlessbuilding;
+package nl.requios.effortlessbuilding.buildmodifier;
 
 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.BuildModifierCapabilityManager;
+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.BuildSettingsMessage;
+import nl.requios.effortlessbuilding.network.ModifierSettingsMessage;
 
 @Mod.EventBusSubscriber
-public class BuildSettingsManager {
+public class ModifierSettingsManager {
 
-    //Retrieves the buildsettings of a player through the buildModifierCapability capability
+    //Retrieves the buildsettings of a player through the modifierCapability capability
     //Never returns null
-    public static BuildSettings getBuildSettings(EntityPlayer player){
-        if (player.hasCapability(BuildModifierCapabilityManager.buildModifierCapability, null)) {
-            BuildModifierCapabilityManager.IBuildModifierCapability capability = player.getCapability(
-                    BuildModifierCapabilityManager.buildModifierCapability, null);
-            if (capability.getBuildModifierData() == null) {
-                capability.setBuildModifierData(new BuildSettings());
+    public static ModifierSettings getModifierSettings(EntityPlayer player){
+        if (player.hasCapability(ModifierCapabilityManager.modifierCapability, null)) {
+            ModifierCapabilityManager.IModifierCapability capability = player.getCapability(
+                    ModifierCapabilityManager.modifierCapability, null);
+            if (capability.getModifierData() == null) {
+                capability.setModifierData(new ModifierSettings());
             }
-            return capability.getBuildModifierData();
+            return capability.getModifierData();
         }
-        throw new IllegalArgumentException("Player does not have buildModifierCapability capability");
+        throw new IllegalArgumentException("Player does not have modifierCapability capability");
     }
 
-    public static void setBuildSettings(EntityPlayer player, BuildSettings buildSettings) {
+    public static void setModifierSettings(EntityPlayer player, ModifierSettings modifierSettings) {
         if (player == null) {
             EffortlessBuilding.log("Cannot set buildsettings, player is null");
             return;
         }
-        if (player.hasCapability(BuildModifierCapabilityManager.buildModifierCapability, null)) {
-            BuildModifierCapabilityManager.IBuildModifierCapability capability = player.getCapability(
-                    BuildModifierCapabilityManager.buildModifierCapability, null);
-            capability.setBuildModifierData(buildSettings);
+        if (player.hasCapability(ModifierCapabilityManager.modifierCapability, null)) {
+            ModifierCapabilityManager.IModifierCapability capability = player.getCapability(
+                    ModifierCapabilityManager.modifierCapability, null);
+            capability.setModifierData(modifierSettings);
         } else {
             EffortlessBuilding.log(player, "Saving buildsettings failed.");
         }
     }
 
-    public static String sanitize(BuildSettings buildSettings, EntityPlayer player) {
+    public static String sanitize(ModifierSettings modifierSettings, EntityPlayer player) {
         int maxReach = ReachHelper.getMaxReach(player);
         String error = "";
 
         //Mirror settings
-        Mirror.MirrorSettings m = buildSettings.getMirrorSettings();
+        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. ";
@@ -56,7 +56,7 @@ public class BuildSettingsManager {
         }
 
         //Array settings
-        Array.ArraySettings a = buildSettings.getArraySettings();
+        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.";
@@ -68,7 +68,7 @@ public class BuildSettingsManager {
         }
 
         //Radial mirror settings
-        RadialMirror.RadialMirrorSettings r = buildSettings.getRadialMirrorSettings();
+        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.";
@@ -84,30 +84,30 @@ public class BuildSettingsManager {
         }
 
         //Other
-        if (buildSettings.reachUpgrade < 0) {
-            buildSettings.reachUpgrade = 0;
+        if (modifierSettings.reachUpgrade < 0) {
+            modifierSettings.reachUpgrade = 0;
         }
-        if (buildSettings.reachUpgrade > 3) {
-            buildSettings.reachUpgrade = 3;
+        if (modifierSettings.reachUpgrade > 3) {
+            modifierSettings.reachUpgrade = 3;
         }
 
         return error;
     }
 
-    public static class BuildSettings {
+    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 BuildSettings() {
+        public ModifierSettings() {
             mirrorSettings = new Mirror.MirrorSettings();
             arraySettings = new Array.ArraySettings();
             radialMirrorSettings = new RadialMirror.RadialMirrorSettings();
         }
 
-        public BuildSettings(Mirror.MirrorSettings mirrorSettings, Array.ArraySettings arraySettings,
+        public ModifierSettings(Mirror.MirrorSettings mirrorSettings, Array.ArraySettings arraySettings,
                                 RadialMirror.RadialMirrorSettings radialMirrorSettings, boolean quickReplace, int reachUpgrade) {
             this.mirrorSettings = mirrorSettings;
             this.arraySettings = arraySettings;
@@ -160,36 +160,35 @@ public class BuildSettingsManager {
 
         public void setReachUpgrade(int reachUpgrade) {
             this.reachUpgrade = reachUpgrade;
+            //Set mirror radius to max
+            int reach = 10;
+            switch (reachUpgrade) {
+                case 0: reach = BuildConfig.reach.maxReachLevel0; break;
+                case 1: reach =  BuildConfig.reach.maxReachLevel1; break;
+                case 2: reach =  BuildConfig.reach.maxReachLevel2; break;
+                case 3: reach =  BuildConfig.reach.maxReachLevel3; break;
+            }
+
+            EffortlessBuilding.log("before "+this.mirrorSettings.radius);
+
+            if (this.mirrorSettings != null)
+                this.mirrorSettings.radius = reach / 2;
+            if (this.radialMirrorSettings != null)
+                this.radialMirrorSettings.radius = reach / 2;
+
+            EffortlessBuilding.log("after "+this.mirrorSettings.radius);
         }
     }
 
-    @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);
-    }
-
-    @SubscribeEvent
-    public static void onPlayerChangedDimension(PlayerEvent.PlayerChangedDimensionEvent event) {
-        EntityPlayer player = event.player;
-        handleNewPlayer(player);
-    }
-
-    private static void handleNewPlayer(EntityPlayer player){
-        if (getBuildSettings(player) == null) {
-            setBuildSettings(player, new BuildSettings());
+    public static void handleNewPlayer(EntityPlayer player){
+        if (getModifierSettings(player) == null) {
+            setModifierSettings(player, new ModifierSettings());
         }
 
         //Only on server
         if (!player.world.isRemote) {
             //Send to client
-            BuildSettingsMessage msg = new BuildSettingsMessage(getBuildSettings(player));
+            ModifierSettingsMessage msg = new ModifierSettingsMessage(getModifierSettings(player));
             EffortlessBuilding.packetHandler.sendTo(msg, (EntityPlayerMP) player);
         }
     }

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

@@ -1,4 +1,4 @@
-package nl.requios.effortlessbuilding;
+package nl.requios.effortlessbuilding.buildmodifier;
 
 import net.minecraft.block.state.IBlockState;
 import net.minecraft.entity.player.EntityPlayer;
@@ -48,7 +48,7 @@ public class RadialMirror {
         List<BlockPos> coordinates = new ArrayList<>();
 
         //find radial mirror settings for the player
-        RadialMirrorSettings r = BuildSettingsManager.getBuildSettings(player).getRadialMirrorSettings();
+        RadialMirrorSettings r = ModifierSettingsManager.getModifierSettings(player).getRadialMirrorSettings();
         if (!isEnabled(r, startPos)) return coordinates;
 
         //get angle between slices
@@ -82,7 +82,7 @@ public class RadialMirror {
         List<BlockPos> coordinates = new ArrayList<>(); //to keep track of duplicates
 
         //find radial mirror settings for the player that placed the block
-        RadialMirrorSettings r = BuildSettingsManager.getBuildSettings(player).getRadialMirrorSettings();
+        RadialMirrorSettings r = ModifierSettingsManager.getModifierSettings(player).getRadialMirrorSettings();
         if (!isEnabled(r, startPos)) return blockStates;
 
 
@@ -123,7 +123,8 @@ public class RadialMirror {
             //Randomizer bag synergy
             if (bagInventory != null) {
                 itemStack = ItemRandomizerBag.pickRandomStack(bagInventory);
-                newBlockState = BuildModifiers.getBlockStateFromItem(itemStack, player, startPos, EnumFacing.UP, new Vec3d(0, 0, 0), EnumHand.MAIN_HAND);
+                newBlockState = BuildModifiers
+                        .getBlockStateFromItem(itemStack, player, startPos, EnumFacing.UP, new Vec3d(0, 0, 0), EnumHand.MAIN_HAND);
 
                 newBlockState = rotateOriginalBlockState(startAngleToCenter, newBlockState);
             }

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

@@ -0,0 +1,193 @@
+package nl.requios.effortlessbuilding.buildmodifier;
+
+import net.minecraft.block.Block;
+import net.minecraft.block.state.IBlockState;
+import net.minecraft.entity.player.EntityPlayer;
+import net.minecraft.item.Item;
+import net.minecraft.item.ItemBlock;
+import net.minecraft.item.ItemStack;
+import net.minecraft.util.EnumFacing;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.math.Vec3d;
+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(EntityPlayer player, BlockSet blockSet) {
+        Map<UUID, FixedStack<BlockSet>> undoStacks = player.world.isRemote ? undoStacksClient : undoStacksServer;
+
+        //If no stack exists, make one
+        if (!undoStacks.containsKey(player.getUniqueID())) {
+            undoStacks.put(player.getUniqueID(), new FixedStack<>(new BlockSet[BuildConfig.survivalBalancers.undoStackSize]));
+        }
+
+        undoStacks.get(player.getUniqueID()).push(blockSet);
+    }
+
+    private static void addRedo(EntityPlayer player, BlockSet blockSet) {
+        Map<UUID, FixedStack<BlockSet>> redoStacks = player.world.isRemote ? redoStacksClient : redoStacksServer;
+
+        //If no stack exists, make one
+        if (!redoStacks.containsKey(player.getUniqueID())) {
+            redoStacks.put(player.getUniqueID(), new FixedStack<>(new BlockSet[BuildConfig.survivalBalancers.undoStackSize]));
+        }
+
+        redoStacks.get(player.getUniqueID()).push(blockSet);
+    }
+
+    public static boolean undo(EntityPlayer 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<IBlockState> previousBlockStates = blockSet.getPreviousBlockStates();
+        List<IBlockState> 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);
+
+                //get blockstate from itemstack
+                IBlockState previousBlockState = Block.getBlockById(0).getDefaultState();
+                if (itemStack.getItem() instanceof ItemBlock) {
+                    previousBlockState = ((ItemBlock) itemStack.getItem()).getBlock().getDefaultState();
+                }
+
+                if (player.world.isBlockLoaded(coordinate, true)) {
+                    //check itemstack empty
+                    if (itemStack.isEmpty()) {
+                        itemStack = findItemStackInInventory(player, previousBlockStates.get(i));
+                        //get blockstate from new itemstack
+                        if (!itemStack.isEmpty() && itemStack.getItem() instanceof ItemBlock) {
+                            previousBlockState = ((ItemBlock) itemStack.getItem()).getBlock().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, EnumFacing.UP, hitVec, true, false, false);
+                }
+            }
+        }
+
+        //add to redo
+        addRedo(player, blockSet);
+
+        return true;
+    }
+
+    public static boolean redo(EntityPlayer 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<IBlockState> 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);
+                IBlockState newBlockState = newBlockStates.get(i);
+                ItemStack itemStack = itemStacks.get(i);
+
+                if (player.world.isBlockLoaded(coordinate, true)) {
+                    //check itemstack empty
+                    if (itemStack.isEmpty()) {
+                        itemStack = findItemStackInInventory(player, newBlockStates.get(i));
+                        //get blockstate from new itemstack
+                        if (!itemStack.isEmpty() && itemStack.getItem() instanceof ItemBlock) {
+                            newBlockState = ((ItemBlock) itemStack.getItem()).getBlock().getDefaultState();
+                        }
+                    }
+                    if (itemStack.isEmpty()) SurvivalHelper.breakBlock(player.world, player, coordinate, true);
+                    SurvivalHelper.placeBlock(player.world, player, coordinate, newBlockState, itemStack, EnumFacing.UP, hitVec, true, false, false);
+                }
+            }
+        }
+
+        //add to undo
+        addUndo(player, blockSet);
+
+        return true;
+    }
+
+    public static void clear(EntityPlayer 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(EntityPlayer player, List<IBlockState> blockStates) {
+        List<ItemStack> itemStacks = new ArrayList<>(blockStates.size());
+        for (IBlockState blockState : blockStates) {
+            itemStacks.add(findItemStackInInventory(player, blockState));
+        }
+        return itemStacks;
+    }
+
+    private static ItemStack findItemStackInInventory(EntityPlayer player, IBlockState blockState) {
+        ItemStack itemStack = ItemStack.EMPTY;
+
+        //First try previousBlockStates
+        itemStack = InventoryHelper.findItemStackInInventory(player, blockState.getBlock());
+
+        //then anything it drops
+        if (itemStack.isEmpty()) {
+            Item itemDropped = blockState.getBlock().getItemDropped(blockState, player.world.rand, 10);
+            if (itemDropped instanceof ItemBlock) {
+                Block block = ((ItemBlock) itemDropped).getBlock();
+                itemStack = InventoryHelper.findItemStackInInventory(player, block);
+            }
+        }
+
+        //then air
+        //(already empty)
+
+        return itemStack;
+    }
+}

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

@@ -0,0 +1,104 @@
+package nl.requios.effortlessbuilding.capability;
+
+import net.minecraft.nbt.NBTBase;
+import net.minecraft.nbt.NBTTagCompound;
+import net.minecraft.util.EnumFacing;
+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.buildmode.BuildModes;
+
+import javax.annotation.Nonnull;
+import javax.annotation.Nullable;
+
+import static nl.requios.effortlessbuilding.buildmode.ModeSettingsManager.*;
+
+@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 NBTBase writeNBT(Capability<IModeCapability> capability, IModeCapability instance, EnumFacing side) {
+            NBTTagCompound compound = new NBTTagCompound();
+            ModeSettings modeSettings = instance.getModeData();
+            if (modeSettings == null) modeSettings = new ModeSettings();
+
+            //compound.setInteger("buildMode", modeSettings.getBuildMode().ordinal());
+
+            //TODO add mode settings
+
+            return compound;
+        }
+
+        @Override
+        public void readNBT(Capability<IModeCapability> capability, IModeCapability instance, EnumFacing side, NBTBase nbt) {
+            NBTTagCompound compound = (NBTTagCompound) 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<NBTBase> {
+        IModeCapability inst = modeCapability.getDefaultInstance();
+
+        @Override
+        public boolean hasCapability(@Nonnull Capability<?> capability, @Nullable EnumFacing facing) {
+            return capability == modeCapability;
+        }
+
+        @Override
+        public <T> T getCapability(@Nonnull Capability<T> capability, @Nullable EnumFacing facing) {
+            if (capability == modeCapability) return modeCapability.<T>cast(inst);
+            return null;
+        }
+
+        @Override
+        public NBTBase serializeNBT() {
+            return modeCapability.getStorage().writeNBT(modeCapability, inst, null);
+        }
+
+        @Override
+        public void deserializeNBT(NBTBase nbt) {
+            modeCapability.getStorage().readNBT(modeCapability, inst, null, nbt);
+        }
+    }
+
+    // Allows for the capability to persist after death.
+    @SubscribeEvent
+    public static void clonePlayer(PlayerEvent.Clone event) {
+        IModeCapability original = event.getOriginal().getCapability(modeCapability, null);
+        IModeCapability clone = event.getEntity().getCapability(modeCapability, null);
+        clone.setModeData(original.getModeData());
+    }
+}

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

@@ -11,49 +11,50 @@ 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 nl.requios.effortlessbuilding.RadialMirror;
+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 BuildModifierCapabilityManager {
+public class ModifierCapabilityManager {
 
-    @CapabilityInject(IBuildModifierCapability.class)
-    public final static Capability<IBuildModifierCapability> buildModifierCapability = null;
+    @CapabilityInject(IModifierCapability.class)
+    public final static Capability<IModifierCapability> modifierCapability = null;
 
-    public interface IBuildModifierCapability {
-        BuildSettings getBuildModifierData();
+    public interface IModifierCapability {
+        ModifierSettings getModifierData();
 
-        void setBuildModifierData(BuildSettings buildSettings);
+        void setModifierData(ModifierSettings modifierSettings);
     }
 
-    public static class BuildModifierCapability implements IBuildModifierCapability {
-        private BuildSettings buildSettings;
+    public static class ModifierCapability implements IModifierCapability {
+        private ModifierSettings modifierSettings;
 
         @Override
-        public BuildSettings getBuildModifierData() {
-            return buildSettings;
+        public ModifierSettings getModifierData() {
+            return modifierSettings;
         }
 
         @Override
-        public void setBuildModifierData(BuildSettings buildSettings) {
-            this.buildSettings = buildSettings;
+        public void setModifierData(ModifierSettings modifierSettings) {
+            this.modifierSettings = modifierSettings;
         }
     }
 
-    public static class Storage implements Capability.IStorage<IBuildModifierCapability> {
+    public static class Storage implements Capability.IStorage<IModifierCapability> {
         @Override
-        public NBTBase writeNBT(Capability<IBuildModifierCapability> capability, IBuildModifierCapability instance, EnumFacing side) {
+        public NBTBase writeNBT(Capability<IModifierCapability> capability, IModifierCapability instance, EnumFacing side) {
             NBTTagCompound compound = new NBTTagCompound();
-            BuildSettings buildSettings = instance.getBuildModifierData();
-            if (buildSettings == null) buildSettings = new BuildSettings();
+            ModifierSettings modifierSettings = instance.getModifierData();
+            if (modifierSettings == null) modifierSettings = new ModifierSettings();
 
             //MIRROR
-            Mirror.MirrorSettings m = buildSettings.getMirrorSettings();
+            Mirror.MirrorSettings m = modifierSettings.getMirrorSettings();
             if (m == null) m = new Mirror.MirrorSettings();
             compound.setBoolean("mirrorEnabled", m.enabled);
             compound.setDouble("mirrorPosX", m.position.x);
@@ -67,7 +68,7 @@ public class BuildModifierCapabilityManager {
             compound.setBoolean("mirrorDrawPlanes", m.drawPlanes);
 
             //ARRAY
-            Array.ArraySettings a = buildSettings.getArraySettings();
+            Array.ArraySettings a = modifierSettings.getArraySettings();
             if (a == null) a = new Array.ArraySettings();
             compound.setBoolean("arrayEnabled", a.enabled);
             compound.setInteger("arrayOffsetX", a.offset.getX());
@@ -75,12 +76,12 @@ public class BuildModifierCapabilityManager {
             compound.setInteger("arrayOffsetZ", a.offset.getZ());
             compound.setInteger("arrayCount", a.count);
 
-            compound.setInteger("reachUpgrade", buildSettings.getReachUpgrade());
+            compound.setInteger("reachUpgrade", modifierSettings.getReachUpgrade());
 
             //compound.setBoolean("quickReplace", buildSettings.doQuickReplace()); dont save quickreplace
 
             //RADIAL MIRROR
-            RadialMirror.RadialMirrorSettings r = buildSettings.getRadialMirrorSettings();
+            RadialMirror.RadialMirrorSettings r = modifierSettings.getRadialMirrorSettings();
             if (r == null) r = new RadialMirror.RadialMirrorSettings();
             compound.setBoolean("radialMirrorEnabled", r.enabled);
             compound.setDouble("radialMirrorPosX", r.position.x);
@@ -96,12 +97,15 @@ public class BuildModifierCapabilityManager {
         }
 
         @Override
-        public void readNBT(Capability<IBuildModifierCapability> capability, IBuildModifierCapability instance, EnumFacing side, NBTBase nbt) {
+        public void readNBT(Capability<IModifierCapability> capability, IModifierCapability 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"));
+            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");
@@ -112,7 +116,10 @@ public class BuildModifierCapabilityManager {
 
             //ARRAY
             boolean arrayEnabled = compound.getBoolean("arrayEnabled");
-            BlockPos arrayOffset = new BlockPos(compound.getInteger("arrayOffsetX"), compound.getInteger("arrayOffsetY"), compound.getInteger("arrayOffsetZ"));
+            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);
 
@@ -122,7 +129,10 @@ public class BuildModifierCapabilityManager {
 
             //RADIAL MIRROR
             boolean radialMirrorEnabled = compound.getBoolean("radialMirrorEnabled");
-            Vec3d radialMirrorPosition = new Vec3d(compound.getDouble("radialMirrorPosX"), compound.getDouble("radialMirrorPosY"), compound.getDouble("radialMirrorPosZ"));
+            Vec3d radialMirrorPosition = new Vec3d(
+                    compound.getDouble("radialMirrorPosX"),
+                    compound.getDouble("radialMirrorPosY"),
+                    compound.getDouble("radialMirrorPosZ"));
             int radialMirrorSlices = compound.getInteger("radialMirrorSlices");
             boolean radialMirrorAlternate = compound.getBoolean("radialMirrorAlternate");
             int radialMirrorRadius = compound.getInteger("radialMirrorRadius");
@@ -131,41 +141,41 @@ public class BuildModifierCapabilityManager {
             RadialMirror.RadialMirrorSettings radialMirrorSettings = new RadialMirror.RadialMirrorSettings(radialMirrorEnabled, radialMirrorPosition,
                     radialMirrorSlices, radialMirrorAlternate, radialMirrorRadius, radialMirrorDrawLines, radialMirrorDrawPlanes);
 
-            BuildSettings buildSettings = new BuildSettings(mirrorSettings, arraySettings, radialMirrorSettings, false, reachUpgrade);
-            instance.setBuildModifierData(buildSettings);
+            ModifierSettings modifierSettings = new ModifierSettings(mirrorSettings, arraySettings, radialMirrorSettings, false, reachUpgrade);
+            instance.setModifierData(modifierSettings);
         }
     }
 
     public static class Provider implements ICapabilitySerializable<NBTBase> {
-        IBuildModifierCapability inst = buildModifierCapability.getDefaultInstance();
+        IModifierCapability inst = modifierCapability.getDefaultInstance();
 
         @Override
         public boolean hasCapability(@Nonnull Capability<?> capability, @Nullable EnumFacing facing) {
-            return capability == buildModifierCapability;
+            return capability == modifierCapability;
         }
 
         @Override
         public <T> T getCapability(@Nonnull Capability<T> capability, @Nullable EnumFacing facing) {
-            if (capability == buildModifierCapability) return buildModifierCapability.<T>cast(inst);
+            if (capability == modifierCapability) return modifierCapability.<T>cast(inst);
             return null;
         }
 
         @Override
         public NBTBase serializeNBT() {
-            return buildModifierCapability.getStorage().writeNBT(buildModifierCapability, inst, null);
+            return modifierCapability.getStorage().writeNBT(modifierCapability, inst, null);
         }
 
         @Override
         public void deserializeNBT(NBTBase nbt) {
-            buildModifierCapability.getStorage().readNBT(buildModifierCapability, inst, null, nbt);
+            modifierCapability.getStorage().readNBT(modifierCapability, inst, null, nbt);
         }
     }
 
     // Allows for the capability to persist after death.
     @SubscribeEvent
     public static void clonePlayer(PlayerEvent.Clone event) {
-        IBuildModifierCapability original = event.getOriginal().getCapability(buildModifierCapability, null);
-        IBuildModifierCapability clone = event.getEntity().getCapability(buildModifierCapability, null);
-        clone.setBuildModifierData(original.getBuildModifierData());
+        IModifierCapability original = event.getOriginal().getCapability(modifierCapability, null);
+        IModifierCapability clone = event.getEntity().getCapability(modifierCapability, null);
+        clone.setModifierData(original.getModifierData());
     }
 }

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

@@ -7,9 +7,9 @@ import net.minecraft.command.WrongUsageException;
 import net.minecraft.entity.player.EntityPlayerMP;
 import net.minecraft.server.MinecraftServer;
 import net.minecraft.util.text.TextComponentString;
-import nl.requios.effortlessbuilding.BuildSettingsManager;
 import nl.requios.effortlessbuilding.EffortlessBuilding;
-import nl.requios.effortlessbuilding.network.BuildSettingsMessage;
+import nl.requios.effortlessbuilding.buildmodifier.ModifierSettingsManager;
+import nl.requios.effortlessbuilding.network.ModifierSettingsMessage;
 
 public class CommandReach extends CommandBase {
     @Override
@@ -24,20 +24,23 @@ public class CommandReach extends CommandBase {
 
     @Override
     public void execute(MinecraftServer server, ICommandSender sender, String[] args) throws CommandException {
+        EntityPlayerMP player = (EntityPlayerMP) sender;
         if (args.length != 1) {
+            int reachUpgrade = ModifierSettingsManager.getModifierSettings(player).getReachUpgrade();
+            EffortlessBuilding.log(player, "Current reach: level "+reachUpgrade);
             throw new WrongUsageException("commands.reach.usage");
         }
 
         if (sender instanceof EntityPlayerMP) {
-            EntityPlayerMP player = (EntityPlayerMP) sender;
             //Set reach level to args[0]
-            BuildSettingsManager.BuildSettings buildSettings = BuildSettingsManager.getBuildSettings(player);
-            buildSettings.setReachUpgrade(Integer.valueOf(args[0]));
-            BuildSettingsManager.setBuildSettings(player, buildSettings);
+            ModifierSettingsManager.ModifierSettings modifierSettings = ModifierSettingsManager.getModifierSettings(player);
+            modifierSettings.setReachUpgrade(Integer.valueOf(args[0]));
+            ModifierSettingsManager.setModifierSettings(player, modifierSettings);
             //Send to client
-            EffortlessBuilding.packetHandler.sendTo(new BuildSettingsMessage(buildSettings), player);
+            EffortlessBuilding.packetHandler.sendTo(new ModifierSettingsMessage(modifierSettings), player);
 
-            sender.sendMessage(new TextComponentString("Reach level of " + sender.getName() + " set to " + buildSettings.getReachUpgrade()));
+            sender.sendMessage(new TextComponentString("Reach level of " + sender.getName() + " set to " + modifierSettings
+                    .getReachUpgrade()));
         }
     }
 }

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

@@ -0,0 +1,13 @@
+package nl.requios.effortlessbuilding.compatibility;
+
+import mod.chiselsandbits.core.ClientSide;
+import mod.chiselsandbits.helpers.ChiselToolType;
+import net.minecraft.util.EnumHand;
+
+public class ActiveChiselsAndBitsProxy implements IChiselsAndBitsProxy {
+    @Override
+    public boolean isHoldingChiselTool(EnumHand hand) {
+        ChiselToolType toolType = ClientSide.instance.getHeldToolType(hand);
+        return toolType != null && toolType.hasMenu();
+    }
+}

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

@@ -0,0 +1,112 @@
+package nl.requios.effortlessbuilding.compatibility;
+
+import net.minecraft.block.state.IBlockState;
+import net.minecraft.item.Item;
+import net.minecraft.item.ItemBlock;
+import net.minecraft.item.ItemStack;
+import net.minecraftforge.fml.common.Loader;
+import net.minecraftforge.fml.common.registry.GameRegistry;
+import net.minecraftforge.items.CapabilityItemHandler;
+import net.minecraftforge.items.IItemHandler;
+import nl.requios.effortlessbuilding.item.ItemRandomizerBag;
+
+public class CompatHelper {
+    // 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 postInit() {
+        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 ItemBlock)
+            return true;
+        if ((item instanceof ItemRandomizerBag))
+            return true;
+        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 ItemBlock)
+            return proxy;
+
+        //Randomizer Bag
+        if (proxyItem instanceof ItemRandomizerBag) {
+            ItemStack itemStack = proxy;
+            while (!(itemStack.getItem() instanceof ItemBlock || itemStack.isEmpty())) {
+                if (itemStack.getItem() instanceof ItemRandomizerBag)
+                    itemStack = ItemRandomizerBag.pickRandomStack(ItemRandomizerBag.getBagInventory(itemStack));
+            }
+            return itemStack;
+        }
+
+        //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, IBlockState state) {
+        Item blockItem = Item.getItemFromBlock(state.getBlock());
+        if(stack.getItem() instanceof ItemBlock)
+            return stack;
+        else if(stack.getItem() instanceof ItemRandomizerBag) {
+            IItemHandler bagInventory = ItemRandomizerBag.getBagInventory(stack);
+            return ItemRandomizerBag.findStack(bagInventory, blockItem);
+        } 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) {
+        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) {
+        IItemHandler handler = stack.getCapability(CapabilityItemHandler.ITEM_HANDLER_CAPABILITY, null);
+        for(int i = 0; i < handler.getSlots(); i++) {
+            ItemStack ref = handler.getStackInSlot(i);
+            if(ref.getItem() instanceof ItemBlock)
+                if(ref.getItem() == blockItem)
+                    return i;
+        }
+        return -1;
+    }
+
+}

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

@@ -0,0 +1,10 @@
+package nl.requios.effortlessbuilding.compatibility;
+
+import net.minecraft.util.EnumHand;
+
+public class DummyChiselsAndBitsProxy implements IChiselsAndBitsProxy {
+    @Override
+    public boolean isHoldingChiselTool(EnumHand hand) {
+        return false;
+    }
+}

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

@@ -0,0 +1,7 @@
+package nl.requios.effortlessbuilding.compatibility;
+
+import net.minecraft.util.EnumHand;
+
+public interface IChiselsAndBitsProxy {
+    boolean isHoldingChiselTool(EnumHand hand);
+}

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

@@ -109,11 +109,10 @@ public class RandomizerBagContainer extends Container {
     @Override
     public ItemStack slotClick(int slot, int dragType, ClickType clickTypeIn, EntityPlayer player) {
         // this will prevent the player from interacting with the item that opened the inventory:
-        ItemStack clickItemStack = super.slotClick(slot, dragType, clickTypeIn, player);
-        if (slot >= 0 && getSlot(slot) != null && getSlot(slot).getStack() == player.getHeldItem(EnumHand.MAIN_HAND)) {
+        if (slot >= 0 && getSlot(slot) != null && getSlot(slot).getStack().equals(player.getHeldItem(EnumHand.MAIN_HAND))) {
             return ItemStack.EMPTY;
         }
-        return clickItemStack;
+        return super.slotClick(slot, dragType, clickTypeIn, player);
     }
 
     /**

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

@@ -12,7 +12,7 @@ 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");
+            new ResourceLocation(EffortlessBuilding.MODID, "textures/gui/container/randomizerbag.png");
     private final InventoryPlayer inventoryPlayer;
     private final IItemHandler inventoryBag;
 

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

@@ -0,0 +1,484 @@
+package nl.requios.effortlessbuilding.gui.buildmode;
+
+import java.util.ArrayList;
+import java.util.concurrent.TimeUnit;
+
+import net.minecraft.client.resources.I18n;
+import net.minecraft.client.settings.KeyBinding;
+import net.minecraft.util.text.TextFormatting;
+import nl.requios.effortlessbuilding.EffortlessBuilding;
+import nl.requios.effortlessbuilding.buildmode.ModeOptions;
+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.gui.GuiScreen;
+import net.minecraft.client.renderer.BufferBuilder;
+import net.minecraft.client.renderer.GlStateManager;
+import net.minecraft.client.renderer.Tessellator;
+import net.minecraft.client.renderer.texture.TextureAtlasSprite;
+import net.minecraft.client.renderer.vertex.DefaultVertexFormats;
+import net.minecraft.util.EnumFacing;
+import net.minecraftforge.client.model.ModelLoader;
+
+import static nl.requios.effortlessbuilding.buildmode.BuildModes.*;
+
+/**
+ * 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 GuiScreen {
+
+    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 ModeOptions.ActionEnum doAction = null;
+    public boolean actionUsed = false;
+
+    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 ) {
+        mc = Minecraft.getMinecraft();
+        fontRenderer = mc.fontRenderer;
+        width = scaledWidth;
+        height = scaledHeight;
+    }
+
+    private static class MenuButton {
+
+        public double x1, x2;
+        public double y1, y2;
+        public boolean highlighted;
+
+        public final ModeOptions.ActionEnum action;
+        public String name;
+        public EnumFacing textSide;
+
+        public MenuButton(final String name, final ModeOptions.ActionEnum action, final double x, final double y,
+                final EnumFacing 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 drawScreen(final int mouseX, final int mouseY, final float partialTicks) {
+        if (!isVisible()) return;
+
+        BuildModeEnum currentBuildMode = ModeSettingsManager.getModeSettings(Minecraft.getMinecraft().player).getBuildMode();
+
+        GlStateManager.pushMatrix();
+        GlStateManager.translate( 0.0F, 0.0F, 200.0F );
+
+        final int startColor = (int) ( visibility * 98 ) << 24;
+        final int endColor = (int) ( visibility * 128 ) << 24;
+
+        drawGradientRect(0, 0, width, height, startColor, endColor);
+
+        GlStateManager.disableTexture2D();
+        GlStateManager.enableBlend();
+        GlStateManager.disableAlpha();
+        GlStateManager.tryBlendFuncSeparate(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;
+
+        final double mouseXCenter = mouseX - middleX;
+        final double mouseYCenter = mouseY - middleY;
+        double mouseRadians = Math.atan2(mouseYCenter, mouseXCenter);
+
+        final double ringInnerEdge = 20;
+        final double ringOuterEdge = 50;
+        final double textDistance = 60;
+        final double buttonDistance = 90;
+        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(ModeOptions.ActionEnum.UNDO.name, ModeOptions.ActionEnum.UNDO, -buttonDistance - 26, -13, EnumFacing.UP));
+        buttons.add(new MenuButton(ModeOptions.ActionEnum.REDO.name, ModeOptions.ActionEnum.REDO, -buttonDistance, -13, EnumFacing.UP));
+        buttons.add(new MenuButton(ModeOptions.ActionEnum.OPEN_MODIFIER_SETTINGS.name, ModeOptions.ActionEnum.OPEN_MODIFIER_SETTINGS, -buttonDistance - 26, 13, EnumFacing.DOWN));
+        buttons.add(new MenuButton(ModeOptions.ActionEnum.REPLACE.name, ModeOptions.ActionEnum.REPLACE, -buttonDistance, 13, EnumFacing.DOWN));
+
+        //Add buildmode dependent options
+        ModeOptions.ActionEnum[] options = currentBuildMode.options;
+        for (int i = 0; i < options.length; i++) {
+            ModeOptions.ActionEnum action = options[i];
+            buttons.add(new MenuButton(action.name, action, buttonDistance + i * 26, -13, EnumFacing.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, zLevel).color(r, g, b, a).endVertex();
+                buffer.pos(middleX + x2m1, middleY + y2m1, zLevel).color(r, g, b, a).endVertex();
+                buffer.pos(middleX + x2m2, middleY + y2m2, zLevel).color(r, g, b, a).endVertex();
+                buffer.pos(middleX + x1m2, middleY + y1m2, zLevel).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 == ModeOptions.getBuildSpeed() ||
+                btn.action == ModeOptions.getFill() ||
+                btn.action == ModeOptions.getCubeFill() ||
+                btn.action == ModeOptions.getRaisedEdge() ||
+                btn.action == ModeOptions.getLineThickness()) {
+                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, zLevel).color(r, g, b, a).endVertex();
+            buffer.pos(middleX + btn.x1, middleY + btn.y2, zLevel).color(r, g, b, a).endVertex();
+            buffer.pos(middleX + btn.x2, middleY + btn.y2, zLevel).color(r, g, b, a).endVertex();
+            buffer.pos(middleX + btn.x2, middleY + btn.y1, zLevel).color(r, g, b, a).endVertex();
+        }
+
+        tessellator.draw();
+
+        GlStateManager.shadeModel(GL11.GL_FLAT);
+
+        GlStateManager.translate(0f, 0f, 5f);
+        GlStateManager.enableTexture2D();
+        GlStateManager.color(1f, 1f, 1f, 1f);
+        GlStateManager.disableBlend();
+        GlStateManager.enableAlpha();
+        GlStateManager.bindTexture(Minecraft.getMinecraft().getTextureMapBlocks().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 = ClientProxy.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, zLevel).tex(sprite.getInterpolatedU(u1), sprite.getInterpolatedV(v1)).color(f, f, f, a).endVertex();
+            buffer.pos(middleX + x1, middleY + y2, zLevel).tex(sprite.getInterpolatedU(u1), sprite.getInterpolatedV(v2)).color(f, f, f, a).endVertex();
+            buffer.pos(middleX + x2, middleY + y2, zLevel).tex(sprite.getInterpolatedU(u2), sprite.getInterpolatedV(v2)).color(f, f, f, a).endVertex();
+            buffer.pos(middleX + x2, middleY + y1, zLevel).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 = ClientProxy.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, zLevel).tex(sprite.getInterpolatedU(u1), sprite.getInterpolatedV(v1)).color(f, f, f, a).endVertex();
+            buffer.pos(middleX + btnx1, middleY + btny2, zLevel).tex(sprite.getInterpolatedU(u1), sprite.getInterpolatedV(v2)).color(f, f, f, a).endVertex();
+            buffer.pos(middleX + btnx2, middleY + btny2, zLevel).tex(sprite.getInterpolatedU(u2), sprite.getInterpolatedV(v2)).color(f, f, f, a).endVertex();
+            buffer.pos(middleX + btnx2, middleY + btny1, zLevel).tex(sprite.getInterpolatedU(u2), sprite.getInterpolatedV(v1)).color(f, f, f, a).endVertex();
+        }
+
+        tessellator.draw();
+
+        //Draw strings
+        //fontRenderer.drawStringWithShadow("Actions", (int) (middleX - buttonDistance - 13) - fontRenderer.getStringWidth("Actions") * 0.5f, (int) middleY - 38, 0xffffffff);
+        String title = "";
+        if (currentBuildMode.options.length > 0) {
+            switch (currentBuildMode.options[0]) {
+                case NORMAL_SPEED:
+                case FAST_SPEED:
+                    title = I18n.format("effortlessbuilding.action.build_speed");
+                    break;
+                case FULL:
+                case HOLLOW:
+                case CUBE_FULL:
+                case CUBE_HOLLOW:
+                case CUBE_SKELETON:
+                    title = I18n.format("effortlessbuilding.action.filling");
+                    break;
+                case SHORT_EDGE:
+                case LONG_EDGE:
+                    title = I18n.format("effortlessbuilding.action.raised_edge");
+                    break;
+                case THICKNESS_1:
+                case THICKNESS_3:
+                case THICKNESS_5:
+                    title = I18n.format("effortlessbuilding.action.thickness");
+                    break;
+            }
+        }
+        fontRenderer.drawStringWithShadow(title, (int) (middleX + buttonDistance - 9), (int) middleY - 37, 0xeeeeeeff);
+
+        String credits = "Effortless Building";
+        fontRenderer.drawStringWithShadow(credits, width - fontRenderer.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) - fontRenderer.FONT_HEIGHT / 2;
+                final String text = I18n.format(menuRegion.mode.name);
+
+                if ( x <= -0.2 ) {
+                    fixed_x -= fontRenderer.getStringWidth(text);
+                } else if ( -0.2 <= x && x <= 0.2 ) {
+                    fixed_x -= fontRenderer.getStringWidth(text) / 2;
+                }
+
+                fontRenderer.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 == ModeOptions.ActionEnum.UNDO) {
+                    keybind = ClientProxy.keyBindings[4].getDisplayName();
+                }
+                if (button.action == ModeOptions.ActionEnum.REDO) {
+                    keybind = ClientProxy.keyBindings[5].getDisplayName();
+                }
+                if (button.action == ModeOptions.ActionEnum.REPLACE) {
+                    keybind = ClientProxy.keyBindings[1].getDisplayName();
+                }
+                if (button.action == ModeOptions.ActionEnum.OPEN_MODIFIER_SETTINGS) {
+                    keybind = ClientProxy.keyBindings[0].getDisplayName();
+                }
+                if (!keybind.isEmpty()) keybindFormatted = TextFormatting.GRAY + "(" + WordUtils.capitalizeFully(keybind) + ")";
+
+                if (button.textSide == EnumFacing.WEST) {
+
+                    fontRenderer.drawSplitString( text, (int) (middleX + button.x1 - 8 ) - fontRenderer.getStringWidth(text),
+                            (int) (middleY + button.y1 + 6), wrap, 0xffffffff);
+
+                } else if (button.textSide == EnumFacing.EAST) {
+
+                    fontRenderer.drawSplitString(text, (int) (middleX + button.x2 + 8),
+                            (int) (middleY + button.y1 + 6 ), wrap, 0xffffffff);
+
+                } else if (button.textSide == EnumFacing.UP || button.textSide == EnumFacing.NORTH) {
+
+                    fontRenderer.drawSplitString( keybindFormatted, (int) (middleX + (button.x1 + button.x2) * 0.5 - fontRenderer.getStringWidth(keybindFormatted) * 0.5),
+                            (int) (middleY + button.y1 - 26), wrap,0xffffffff);
+
+                    fontRenderer.drawSplitString( text, (int) (middleX + (button.x1 + button.x2) * 0.5 - fontRenderer.getStringWidth(text) * 0.5),
+                            (int) (middleY + button.y1 - 14), wrap,0xffffffff);
+
+                } else if (button.textSide == EnumFacing.DOWN || button.textSide == EnumFacing.SOUTH) {
+
+                    fontRenderer.drawSplitString(text, (int) (middleX + (button.x1 + button.x2) * 0.5 - fontRenderer.getStringWidth(text) * 0.5),
+                            (int) (middleY + button.y1 + 26), wrap, 0xffffffff);
+
+                    fontRenderer.drawSplitString(keybindFormatted, (int) (middleX + (button.x1 + button.x2) * 0.5 - fontRenderer.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
+    protected void mouseClicked(int mouseX, int 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();
+//            }
+//        }
+    }
+}
+

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

@@ -1,13 +1,16 @@
-package nl.requios.effortlessbuilding.gui;
+package nl.requios.effortlessbuilding.gui.buildmodifier;
 
 import net.minecraft.client.gui.GuiButton;
 import net.minecraft.client.gui.GuiScreen;
 import net.minecraft.util.math.BlockPos;
 import net.minecraft.util.text.TextFormatting;
 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.buildmodifier.Array;
+import nl.requios.effortlessbuilding.buildmodifier.ModifierSettingsManager;
+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.io.IOException;
@@ -55,9 +58,9 @@ public class ArraySettingsGui extends GuiCollapsibleScrollEntry {
         textArrayCount.setTooltip("How many copies should be made.");
         arrayNumberFieldList.add(textArrayCount);
 
-        BuildSettingsManager.BuildSettings buildSettings = BuildSettingsManager.getBuildSettings(mc.player);
-        if (buildSettings != null) {
-            Array.ArraySettings a = buildSettings.getArraySettings();
+        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());

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

@@ -1,4 +1,4 @@
-package nl.requios.effortlessbuilding.gui;
+package nl.requios.effortlessbuilding.gui.buildmodifier;
 
 import net.minecraft.client.gui.GuiButton;
 import net.minecraft.client.gui.GuiScreen;
@@ -6,9 +6,13 @@ import net.minecraft.util.ResourceLocation;
 import net.minecraft.util.math.Vec3d;
 import net.minecraft.util.text.TextFormatting;
 import net.minecraftforge.fml.client.config.GuiCheckBox;
-import nl.requios.effortlessbuilding.BuildSettingsManager;
 import nl.requios.effortlessbuilding.EffortlessBuilding;
-import nl.requios.effortlessbuilding.Mirror;
+import nl.requios.effortlessbuilding.buildmodifier.Mirror;
+import nl.requios.effortlessbuilding.buildmodifier.ModifierSettingsManager;
+import nl.requios.effortlessbuilding.gui.elements.GuiCollapsibleScrollEntry;
+import nl.requios.effortlessbuilding.gui.elements.GuiIconButton;
+import nl.requios.effortlessbuilding.gui.elements.GuiNumberField;
+import nl.requios.effortlessbuilding.gui.elements.GuiScrollPane;
 import nl.requios.effortlessbuilding.helper.ReachHelper;
 
 import java.io.IOException;
@@ -94,9 +98,9 @@ public class MirrorSettingsGui extends GuiCollapsibleScrollEntry {
         buttonDrawPlanes.setTooltip("Show area");
         mirrorIconButtonList.add(buttonDrawPlanes);
 
-        BuildSettingsManager.BuildSettings buildSettings = BuildSettingsManager.getBuildSettings(mc.player);
-        if (buildSettings != null) {
-            Mirror.MirrorSettings m = buildSettings.getMirrorSettings();
+        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);

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

@@ -1,14 +1,19 @@
-package nl.requios.effortlessbuilding.gui;
+package nl.requios.effortlessbuilding.gui.buildmodifier;
 
 import net.minecraft.client.gui.GuiButton;
 import net.minecraft.client.gui.GuiScreen;
-import nl.requios.effortlessbuilding.*;
-import nl.requios.effortlessbuilding.network.BuildSettingsMessage;
+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.proxy.ClientProxy;
 
 import java.io.IOException;
 
-public class SettingsGui extends GuiScreen {
+public class ModifierSettingsGui extends GuiScreen {
 
     private GuiScrollPane scrollPane;
     private GuiButton buttonClose;
@@ -113,20 +118,20 @@ public class SettingsGui extends GuiScreen {
         Array.ArraySettings a = arraySettingsGui.getArraySettings();
         RadialMirror.RadialMirrorSettings r = radialMirrorSettingsGui.getRadialMirrorSettings();
 
-        BuildSettingsManager.BuildSettings buildSettings = BuildSettingsManager.getBuildSettings(mc.player);
-        if (buildSettings == null) buildSettings = new BuildSettingsManager.BuildSettings();
-        buildSettings.setMirrorSettings(m);
-        buildSettings.setArraySettings(a);
-        buildSettings.setRadialMirrorSettings(r);
+        ModifierSettingsManager.ModifierSettings modifierSettings = ModifierSettingsManager.getModifierSettings(mc.player);
+        if (modifierSettings == null) modifierSettings = new ModifierSettingsManager.ModifierSettings();
+        modifierSettings.setMirrorSettings(m);
+        modifierSettings.setArraySettings(a);
+        modifierSettings.setRadialMirrorSettings(r);
 
         //Sanitize
-        String error = BuildSettingsManager.sanitize(buildSettings, mc.player);
+        String error = ModifierSettingsManager.sanitize(modifierSettings, mc.player);
         if (!error.isEmpty()) EffortlessBuilding.log(mc.player, error);
 
-        BuildSettingsManager.setBuildSettings(mc.player, buildSettings);
+        ModifierSettingsManager.setModifierSettings(mc.player, modifierSettings);
 
         //Send to server
-        EffortlessBuilding.packetHandler.sendToServer(new BuildSettingsMessage(buildSettings));
+        EffortlessBuilding.packetHandler.sendToServer(new ModifierSettingsMessage(modifierSettings));
     }
 
 }

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

@@ -1,4 +1,4 @@
-package nl.requios.effortlessbuilding.gui;
+package nl.requios.effortlessbuilding.gui.buildmodifier;
 
 import net.minecraft.client.gui.GuiButton;
 import net.minecraft.client.gui.GuiScreen;
@@ -6,9 +6,13 @@ import net.minecraft.util.ResourceLocation;
 import net.minecraft.util.math.Vec3d;
 import net.minecraft.util.text.TextFormatting;
 import net.minecraftforge.fml.client.config.GuiCheckBox;
-import nl.requios.effortlessbuilding.BuildSettingsManager;
 import nl.requios.effortlessbuilding.EffortlessBuilding;
-import nl.requios.effortlessbuilding.RadialMirror;
+import nl.requios.effortlessbuilding.buildmodifier.ModifierSettingsManager;
+import nl.requios.effortlessbuilding.buildmodifier.RadialMirror;
+import nl.requios.effortlessbuilding.gui.elements.GuiCollapsibleScrollEntry;
+import nl.requios.effortlessbuilding.gui.elements.GuiIconButton;
+import nl.requios.effortlessbuilding.gui.elements.GuiNumberField;
+import nl.requios.effortlessbuilding.gui.elements.GuiScrollPane;
 import nl.requios.effortlessbuilding.helper.ReachHelper;
 
 import java.io.IOException;
@@ -94,9 +98,9 @@ public class RadialMirrorSettingsGui extends GuiCollapsibleScrollEntry {
         buttonRadialMirrorAlternate = new GuiCheckBox(id++, left + 140, y, " Alternate", false);
         radialMirrorButtonList.add(buttonRadialMirrorAlternate);
 
-        BuildSettingsManager.BuildSettings buildSettings = BuildSettingsManager.getBuildSettings(mc.player);
-        if (buildSettings != null) {
-            RadialMirror.RadialMirrorSettings r = buildSettings.getRadialMirrorSettings();
+        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);

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

@@ -1,4 +1,4 @@
-package nl.requios.effortlessbuilding.gui;
+package nl.requios.effortlessbuilding.gui.elements;
 
 import net.minecraft.client.Minecraft;
 import net.minecraft.client.gui.FontRenderer;

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

@@ -1,4 +1,4 @@
-package nl.requios.effortlessbuilding.gui;
+package nl.requios.effortlessbuilding.gui.elements;
 
 import net.minecraft.client.Minecraft;
 import net.minecraft.client.gui.GuiButton;

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

@@ -1,4 +1,4 @@
-package nl.requios.effortlessbuilding.gui;
+package nl.requios.effortlessbuilding.gui.elements;
 
 import net.minecraft.client.Minecraft;
 import net.minecraft.client.gui.*;
@@ -12,8 +12,8 @@ import java.util.List;
 
 public class GuiNumberField extends Gui {
 
-    int x, y, width, height;
-    int buttonWidth = 10;
+    public int x, y, width, height;
+    public int buttonWidth = 10;
 
     protected GuiTextField textField;
     protected GuiButton minusButton, plusButton;
@@ -106,7 +106,7 @@ public class GuiNumberField extends Gui {
 
     }
 
-    protected void actionPerformed(GuiButton button) {
+    public void actionPerformed(GuiButton button) {
         float valueChanged = 1f;
         if (GuiScreen.isCtrlKeyDown()) valueChanged = 5f;
         if (GuiScreen.isShiftKeyDown()) valueChanged = 10f;
@@ -123,7 +123,7 @@ public class GuiNumberField extends Gui {
         textField.updateCursorCounter();
     }
 
-    protected void keyTyped(char typedChar, int keyCode) throws IOException {
+    public void keyTyped(char typedChar, int keyCode) throws IOException {
         if (!textField.isFocused()) return;
 //        if (Character.isDigit(typedChar) || typedChar == '.' || typedChar == '-' || keyCode == Keyboard.KEY_BACK
 //            || keyCode == Keyboard.KEY_DELETE || keyCode == Keyboard.KEY_LEFT || keyCode == Keyboard.KEY_RIGHT

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

@@ -1,4 +1,4 @@
-package nl.requios.effortlessbuilding.gui;
+package nl.requios.effortlessbuilding.gui.elements;
 
 import net.minecraft.client.Minecraft;
 import net.minecraft.client.gui.FontRenderer;

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 +1,31 @@
+package nl.requios.effortlessbuilding.helper;
+
+import net.minecraft.block.Block;
+import net.minecraft.block.state.IBlockState;
+import net.minecraft.entity.player.EntityPlayer;
+import net.minecraft.item.ItemBlock;
+import net.minecraft.item.ItemStack;
+
+public class InventoryHelper {
+
+    public static ItemStack findItemStackInInventory(EntityPlayer player, Block block) {
+        for (ItemStack invStack : player.inventory.mainInventory) {
+            if (!invStack.isEmpty() && invStack.getItem() instanceof ItemBlock &&
+                ((ItemBlock) invStack.getItem()).getBlock().equals(block)) {
+                return invStack;
+            }
+        }
+        return ItemStack.EMPTY;
+    }
+
+    public static int findTotalBlocksInInventory(EntityPlayer player, Block block) {
+        int total = 0;
+        for (ItemStack invStack : player.inventory.mainInventory) {
+            if (!invStack.isEmpty() && invStack.getItem() instanceof ItemBlock &&
+                ((ItemBlock) invStack.getItem()).getBlock().equals(block)) {
+                total += invStack.getCount();
+            }
+        }
+        return total;
+    }
+}

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

@@ -1,8 +1,9 @@
 package nl.requios.effortlessbuilding.helper;
 
 import net.minecraft.entity.player.EntityPlayer;
+import net.minecraft.util.math.MathHelper;
 import nl.requios.effortlessbuilding.BuildConfig;
-import nl.requios.effortlessbuilding.BuildSettingsManager;
+import nl.requios.effortlessbuilding.buildmodifier.ModifierSettingsManager;
 
 public class ReachHelper {
     public static int getMaxReach(EntityPlayer player) {
@@ -11,7 +12,7 @@ public class ReachHelper {
         if (!BuildConfig.reach.enableReachUpgrades) return BuildConfig.reach.maxReachLevel3;
 
         //Check buildsettings for reachUpgrade
-        int reachUpgrade = BuildSettingsManager.getBuildSettings(player).getReachUpgrade();
+        int reachUpgrade = ModifierSettingsManager.getModifierSettings(player).getReachUpgrade();
         switch (reachUpgrade) {
             case 0: return BuildConfig.reach.maxReachLevel0;
             case 1: return BuildConfig.reach.maxReachLevel1;
@@ -21,6 +22,20 @@ public class ReachHelper {
         return BuildConfig.reach.maxReachLevel0;
     }
 
+    public static int getPlacementReach(EntityPlayer player) {
+        return getMaxReach(player) / 4;
+    }
+
+    public static int getMaxBlocksPlacedAtOnce(EntityPlayer player) {
+        if (player.isCreative()) return 1000000;
+        return getMaxReach(player) * 5;
+    }
+
+    public static int getMaxBlocksPerAxis(EntityPlayer player) {
+        if (player.isCreative()) return 2000;
+        return MathHelper.ceil(MathHelper.sqrt(getMaxReach(player)));
+    }
+
     public static boolean canBreakFar(EntityPlayer player) {
         return player.isCreative() || BuildConfig.survivalBalancers.breakFar;
     }

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

@@ -1,435 +0,0 @@
-package nl.requios.effortlessbuilding.helper;
-
-import net.minecraft.block.Block;
-import net.minecraft.block.state.IBlockState;
-import net.minecraft.client.Minecraft;
-import net.minecraft.client.renderer.*;
-import net.minecraft.client.renderer.texture.TextureMap;
-import net.minecraft.client.renderer.vertex.DefaultVertexFormats;
-import net.minecraft.entity.Entity;
-import net.minecraft.entity.player.EntityPlayer;
-import net.minecraft.item.ItemBlock;
-import net.minecraft.item.ItemStack;
-import net.minecraft.util.EnumFacing;
-import net.minecraft.util.SoundCategory;
-import net.minecraft.util.SoundEvent;
-import net.minecraft.util.math.*;
-import net.minecraft.world.IWorldEventListener;
-import net.minecraft.world.World;
-import net.minecraftforge.client.event.RenderWorldLastEvent;
-import net.minecraftforge.fml.common.Mod;
-import net.minecraftforge.fml.common.eventhandler.SubscribeEvent;
-import net.minecraftforge.fml.relauncher.Side;
-import nl.requios.effortlessbuilding.*;
-import nl.requios.effortlessbuilding.item.ItemRandomizerBag;
-import nl.requios.effortlessbuilding.proxy.ClientProxy;
-import org.lwjgl.opengl.GL11;
-import org.lwjgl.opengl.GL14;
-import org.lwjgl.util.Color;
-
-import javax.annotation.Nullable;
-import java.util.ArrayList;
-import java.util.List;
-
-@Mod.EventBusSubscriber(Side.CLIENT)
-public class RenderHelper implements IWorldEventListener {
-
-    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 Color colorRadial = 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
-
-    private static List<BlockPos> previousCoordinates;
-
-    private static void begin(float partialTicks) {
-        EntityPlayer player = Minecraft.getMinecraft().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);
-
-        GL11.glDepthMask(false);
-    }
-
-    private 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);
-    }
-
-    private static void endLines() {
-        GL11.glPopAttrib();
-    }
-
-    private 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);
-        GlStateManager.enableBlend();
-        GlStateManager.blendFunc(GL11.GL_CONSTANT_ALPHA, GL11.GL_ONE_MINUS_CONSTANT_ALPHA);
-        GL14.glBlendColor(1F, 1F, 1F, 0.8f);
-    }
-
-    private static void endBlockPreviews() {
-        GlStateManager.blendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);
-        GlStateManager.disableBlend();
-        GL11.glPopAttrib();
-    }
-
-    private static void end() {
-        GL11.glDepthMask(true);
-        GL11.glPopMatrix();
-    }
-
-    private static void renderBlockPreview(BlockRendererDispatcher dispatcher, BlockPos blockPos, IBlockState blockState) {
-        GlStateManager.pushMatrix();
-        GlStateManager.translate(blockPos.getX(), blockPos.getY(), blockPos.getZ());
-        GlStateManager.rotate(-90.0F, 0.0F, 1.0F, 0.0F);
-        GlStateManager.translate(-0.005f, -0.005f, 0.005f);
-        GlStateManager.scale(1.01f, 1.01f, 1.01f);
-        dispatcher.renderBlockBrightness(blockState, 0.85f);
-        GlStateManager.popMatrix();
-    }
-
-    public static void renderBlockOutline(BlockPos pos) {
-        renderBlockOutline(pos, pos);
-    }
-
-    //Renders outline. Pos1 has to be minimal x,y,z and pos2 maximal x,y,z
-    public static void renderBlockOutline(BlockPos pos1, BlockPos pos2) {
-        GL11.glLineWidth(2);
-
-        AxisAlignedBB aabb = new AxisAlignedBB(pos1, pos2.add(1, 1, 1)).grow(0.0020000000949949026);
-
-        RenderGlobal.drawSelectionBoundingBox(aabb, 0f, 0f, 0f, 0.4f);
-    }
-
-    @SubscribeEvent
-    public static void onRender(RenderWorldLastEvent event) {
-        EntityPlayer player = Minecraft.getMinecraft().player;
-        BuildSettingsManager.BuildSettings buildSettings = BuildSettingsManager.getBuildSettings(player);
-
-        begin(event.getPartialTicks());
-
-        beginLines();
-        //Mirror lines and areas
-        Mirror.MirrorSettings m = buildSettings.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 = buildSettings.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);
-            }
-        }
-        endLines();
-
-        //Render block previews
-        RayTraceResult lookingAt = ClientProxy.getLookingAt(player);
-        //Checking for null is necessary! Even in vanilla when looking down ladders it is occasionally null (instead of Type MISS)
-        if (lookingAt != null && lookingAt.typeOfHit == RayTraceResult.Type.BLOCK)
-        {
-            beginBlockPreviews();
-            BlockRendererDispatcher dispatcher = Minecraft.getMinecraft().getBlockRendererDispatcher();
-            BlockPos startPos = lookingAt.getBlockPos();
-
-            //Check if tool (or none) in hand
-            ItemStack mainhand = player.getHeldItemMainhand();
-            boolean toolInHand = !(!mainhand.isEmpty() && (mainhand.getItem() instanceof ItemBlock || mainhand.getItem() instanceof ItemRandomizerBag));
-            boolean replaceable =
-                    player.world.getBlockState(startPos).getBlock().isReplaceable(player.world, startPos);
-            if (!buildSettings.doQuickReplace() && !toolInHand && !replaceable) {
-                startPos = startPos.offset(lookingAt.sideHit);
-            }
-
-            //Get under tall grass and other replaceable blocks
-            if (buildSettings.doQuickReplace() && !toolInHand && replaceable) {
-                startPos = startPos.down();
-            }
-
-            if (BuildModifiers.isEnabled(buildSettings, startPos) || BuildConfig.visuals.alwaysShowBlockPreview) {
-                //get coordinates
-                List<BlockPos> newCoordinates = BuildModifiers.findCoordinates(player, startPos);
-
-                //check if they are different from previous
-                if (!BuildModifiers.compareCoordinates(previousCoordinates, newCoordinates)) {
-                    previousCoordinates = newCoordinates;
-                    //if so, renew randomness of randomizer bag
-                    ItemRandomizerBag.renewRandomness();
-                }
-
-                Vec3d hitVec = lookingAt.hitVec;
-                hitVec = new Vec3d(Math.abs(hitVec.x - ((int) hitVec.x)), Math.abs(hitVec.y - ((int) hitVec.y)),
-                        Math.abs(hitVec.z - ((int) hitVec.z)));
-                List<ItemStack> itemStacks = new ArrayList<>();
-                List<IBlockState> blockStates = BuildModifiers.findBlockStates(player, startPos, hitVec, lookingAt.sideHit, itemStacks);
-
-                //check if valid blockstates
-                if (blockStates.size() != 0 && newCoordinates.size() == blockStates.size()) {
-                    for (int i = newCoordinates.size() - 1; i >= 0; i--) {
-                        BlockPos blockPos = newCoordinates.get(i);
-                        IBlockState blockState = blockStates.get(i);
-                        ItemStack itemstack = itemStacks.get(i);
-                        //Check if can place
-                        if (!itemstack.isEmpty() && SurvivalHelper.canPlayerEdit(player, player.world, blockPos, itemstack) &&
-                            SurvivalHelper.mayPlace(player.world, Block.getBlockFromItem(itemstack.getItem()), blockState, blockPos, false, EnumFacing.UP, player) &&
-                            SurvivalHelper.canReplace(player.world, player, blockPos)) {
-                            renderBlockPreview(dispatcher, blockPos, blockState);
-                        }
-                    }
-                }
-            }
-            endBlockPreviews();
-
-            beginLines();
-            //Draw outlines if tool in hand
-            //Find proper raytrace: either normal range or increased range depending on canBreakFar
-            RayTraceResult objectMouseOver = Minecraft.getMinecraft().objectMouseOver;
-            RayTraceResult breakingRaytrace = ReachHelper.canBreakFar(player) ? lookingAt : objectMouseOver;
-            if (toolInHand && breakingRaytrace != null && breakingRaytrace.typeOfHit == RayTraceResult.Type.BLOCK) {
-                List<BlockPos> breakCoordinates = BuildModifiers.findCoordinates(player, breakingRaytrace.getBlockPos());
-
-                //Only render first outline if further than normal reach
-                boolean excludeFirst = objectMouseOver != null && objectMouseOver.typeOfHit == RayTraceResult.Type.BLOCK;
-                for (int i = excludeFirst ? 1 : 0; i < breakCoordinates.size(); i++) {
-                    BlockPos coordinate = breakCoordinates.get(i);
-
-                    IBlockState blockState = player.world.getBlockState(coordinate);
-                    if (!blockState.getBlock().isAir(blockState, player.world, coordinate)) {
-                        if (SurvivalHelper.canBreak(player.world, player, coordinate) || i == 0) {
-                            renderBlockOutline(coordinate);
-                        }
-                    }
-                }
-            }
-            endLines();
-        }
-
-        end();
-    }
-
-
-    //----Mirror----
-
-    public 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();
-        }
-    }
-
-    public 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();
-        }
-    }
-
-    public 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();
-    }
-
-    //IWORLDEVENTLISTENER IMPLEMENTATION
-    @Override
-    public void notifyBlockUpdate(World worldIn, BlockPos pos, IBlockState oldState, IBlockState newState, int flags) {
-
-    }
-
-    @Override
-    public void notifyLightSet(BlockPos pos) {
-
-    }
-
-    @Override
-    public void markBlockRangeForRenderUpdate(int x1, int y1, int z1, int x2, int y2, int z2) {
-
-    }
-
-    @Override
-    public void playSoundToAllNearExcept(@Nullable EntityPlayer player, SoundEvent soundIn, SoundCategory category,
-                                         double x, double y, double z, float volume, float pitch) {
-
-    }
-
-    @Override
-    public void playRecord(SoundEvent soundIn, BlockPos pos) {
-
-    }
-
-    @Override
-    public void spawnParticle(int particleID, boolean ignoreRange, double xCoord, double yCoord, double zCoord,
-                              double xSpeed, double ySpeed, double zSpeed, int... parameters) {
-
-    }
-
-    @Override
-    public void spawnParticle(int id, boolean ignoreRange, boolean p_190570_3_, double x, double y, double z,
-                              double xSpeed, double ySpeed, double zSpeed, int... parameters) {
-
-    }
-
-    @Override
-    public void onEntityAdded(Entity entityIn) {
-
-    }
-
-    @Override
-    public void onEntityRemoved(Entity entityIn) {
-
-    }
-
-    @Override
-    public void broadcastSound(int soundID, BlockPos pos, int data) {
-
-    }
-
-    @Override
-    public void playEvent(EntityPlayer player, int type, BlockPos blockPosIn, int data) {
-
-    }
-
-    //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.getMinecraft();
-
-        BuildSettingsManager.BuildSettings buildSettings = BuildSettingsManager.getBuildSettings(mc.player);
-        if (!BuildModifiers.isEnabled(buildSettings, 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/helper/SurvivalHelper.java

@@ -2,104 +2,117 @@ package nl.requios.effortlessbuilding.helper;
 
 import net.minecraft.block.Block;
 import net.minecraft.block.BlockLiquid;
+import net.minecraft.block.BlockSlab;
 import net.minecraft.block.SoundType;
 import net.minecraft.block.material.Material;
+import net.minecraft.block.properties.IProperty;
 import net.minecraft.block.state.IBlockState;
-import net.minecraft.enchantment.EnchantmentHelper;
 import net.minecraft.entity.Entity;
 import net.minecraft.entity.player.EntityPlayer;
 import net.minecraft.init.Blocks;
-import net.minecraft.init.Enchantments;
-import net.minecraft.item.Item;
 import net.minecraft.item.ItemBlock;
+import net.minecraft.item.ItemSlab;
 import net.minecraft.item.ItemStack;
-import net.minecraft.stats.StatList;
 import net.minecraft.util.EnumFacing;
+import net.minecraft.util.EnumHand;
 import net.minecraft.util.SoundCategory;
 import net.minecraft.util.math.AxisAlignedBB;
 import net.minecraft.util.math.BlockPos;
 import net.minecraft.util.math.Vec3d;
 import net.minecraft.world.IBlockAccess;
 import net.minecraft.world.World;
-import net.minecraftforge.items.IItemHandler;
-import net.minecraftforge.items.ItemHandlerHelper;
-import nl.requios.effortlessbuilding.BuildSettingsManager;
-import nl.requios.effortlessbuilding.EffortlessBuilding;
-import nl.requios.effortlessbuilding.item.ItemRandomizerBag;
+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;
-import java.util.List;
 
 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, EntityPlayer player, BlockPos pos, IBlockState blockState, ItemStack itemstack, EnumFacing facing, Vec3d hitVec, boolean skipCollisionCheck, boolean playSound) {
+    public static boolean placeBlock(World world, EntityPlayer player, BlockPos pos, IBlockState blockState,
+                                     ItemStack origstack, EnumFacing facing, Vec3d hitVec, boolean skipPlaceCheck,
+                                     boolean skipCollisionCheck, boolean playSound) {
         if (!world.isBlockLoaded(pos, true)) return false;
+        ItemStack itemstack = origstack;
 
-        //Randomizer bag synergy
-        //Find itemstack that belongs to the blockstate
-        if (itemstack.getItem() == EffortlessBuilding.ITEM_RANDOMIZER_BAG) {
-            IItemHandler bagInventory = ItemRandomizerBag.getBagInventory(itemstack);
-            itemstack = ItemRandomizerBag.findStack(bagInventory, Item.getItemFromBlock(blockState.getBlock()));
+        if (blockState.getBlock().isAir(blockState, world, pos) || itemstack.isEmpty()) {
+            dropBlock(world, player, pos);
+            world.setBlockToAir(pos);
+            return true;
         }
 
-        //Check if itemstack is correct
-        if (!(itemstack.getItem() instanceof ItemBlock) || Block.getBlockFromItem(itemstack.getItem()) != blockState.getBlock()) {
-            EffortlessBuilding.log(player, "Cannot (re)place block", true);
-            EffortlessBuilding.log("SurvivalHelper#placeBlock: itemstack " + itemstack.toString() + " does not match blockstate " + blockState.toString());
+        //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 ItemBlock))
             return false;
-        }
-
         Block block = ((ItemBlock) itemstack.getItem()).getBlock();
 
-        if (!itemstack.isEmpty() && canPlayerEdit(player, world, pos, itemstack) &&
-            mayPlace(world, block, blockState, pos, skipCollisionCheck, facing.getOpposite(), player) &&
-            canReplace(world, player, pos)) {
 
+        //More manual with ItemBlock#placeBlockAt
+        if (skipPlaceCheck || canPlace(world, player, pos, blockState, itemstack, skipCollisionCheck, facing.getOpposite())) {
             //Drop existing block
             dropBlock(world, player, pos);
 
             boolean placed = ((ItemBlock) itemstack.getItem()).placeBlockAt(itemstack, player, world, pos, facing, (float) hitVec.x, (float) hitVec.y, (float) hitVec.z, blockState);
             if (!placed) return false;
 
-            //From ItemBlock#placeBlockAt
-//            if (!world.setBlockState(pos, blockState, 11)) return false;
-//
-            IBlockState state = world.getBlockState(pos);
-//            if (state.getBlock() == block)
-//            {
-//                ((ItemBlock) itemstack.getItem()).setTileEntityNBT(world, player, pos, itemstack);
-//                block.onBlockPlacedBy(world, pos, state, player, itemstack);
-//
-////                if (player instanceof EntityPlayerMP)
-////                    CriteriaTriggers.PLACED_BLOCK.trigger((EntityPlayerMP)player, pos, itemstack);
-//            }
+            IBlockState afterState = world.getBlockState(pos);
 
             if (playSound) {
-                SoundType soundtype = state.getBlock().getSoundType(state, world, pos, player);
+                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) {
-                itemstack.shrink(1);
+                CompatHelper.shrinkStack(origstack, itemstack);
             }
 
             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, EntityPlayer player, BlockPos pos) {
+    public static boolean breakBlock(World world, EntityPlayer player, BlockPos pos, boolean skipChecks) {
         if (!world.isBlockLoaded(pos, false)) return false;
 
         //Check if can break
-        if (canBreak(world, player, pos))
-        {
+        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);
 
@@ -112,6 +125,145 @@ public class SurvivalHelper {
         return false;
     }
 
+    //Gives items directly to player
+    public static void dropBlock(World world, EntityPlayer player, BlockPos pos){
+        if (player.isCreative()) return;
+
+        IBlockState 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, EntityPlayer player, BlockPos pos, IBlockState newBlockState, ItemStack itemStack, boolean skipCollisionCheck, EnumFacing sidePlacedOn) {
+
+        //Check if itemstack is correct
+        if (!(itemStack.getItem() instanceof ItemBlock) || 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 = ((ItemBlock) 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, EntityPlayer player, BlockPos pos){
+        if (player.isCreative()) return true;
+
+        IBlockState state = world.getBlockState(pos);
+        state = state.getBlock().getActualState(state, world, pos);
+
+        switch (BuildConfig.survivalBalancers.quickReplaceMiningLevel) {
+            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(EntityPlayer player, World world, BlockPos pos, ItemStack stack)
+    {
+        if (player.capabilities.allowEdit)
+        {
+            //True in creative and survival mode
+            return true;
+        }
+        else
+        {
+            //Adventure mode
+            Block block = world.getBlockState(pos).getBlock();
+            return stack.canPlaceOn(block) || stack.canEditBlocks();
+        }
+    }
+
+    //From World#mayPlace
+    private static boolean mayPlace(World world, Block blockIn, IBlockState newBlockState, BlockPos pos, boolean skipCollisionCheck, EnumFacing sidePlacedOn, @Nullable Entity placer)
+    {
+        IBlockState iblockstate1 = world.getBlockState(pos);
+        AxisAlignedBB axisalignedbb = skipCollisionCheck ? Block.NULL_AABB : blockIn.getDefaultState().getCollisionBoundingBox(world, pos);
+
+        if (axisalignedbb != Block.NULL_AABB && !world.checkNoEntityCollision(axisalignedbb.offset(pos)))
+        {
+            return false;
+        }
+
+        //Check if double slab
+        if (placer != null && doesBecomeDoubleSlab(((EntityPlayer) placer), pos, sidePlacedOn)) {
+            return true;
+        }
+
+        //Check if same block
+        //Necessary otherwise extra items will be dropped
+        if (iblockstate1 == newBlockState) {
+            return false;
+        }
+
+        if (iblockstate1.getMaterial() == Material.CIRCUITS && blockIn == Blocks.ANVIL)
+        {
+            return true;
+        }
+
+        //Check quickreplace
+        if (placer instanceof EntityPlayer && ModifierSettingsManager.getModifierSettings(((EntityPlayer) placer)).doQuickReplace()) {
+            return true;
+        }
+
+        return iblockstate1.getBlock().isReplaceable(world, pos) && blockIn.canPlaceBlockOnSide(world, pos, sidePlacedOn);
+    }
+
+
+
     //Can break using held tool? (or in creative)
     public static boolean canBreak(World world, EntityPlayer player, BlockPos pos) {
         IBlockState blockState = world.getBlockState(pos);
@@ -156,77 +308,28 @@ public class SurvivalHelper {
         return toolLevel >= block.getHarvestLevel(state);
     }
 
-    //Can be harvested with hand? (or in creative)
-    public static boolean canReplace(World world, EntityPlayer player, BlockPos pos){
-        if (player.isCreative()) return true;
+    public static boolean doesBecomeDoubleSlab(EntityPlayer player, BlockPos pos, EnumFacing facing) {
+        IBlockState placedBlockState = player.world.getBlockState(pos);
 
-        IBlockState state = world.getBlockState(pos);
-        state = state.getBlock().getActualState(state, world, pos);
-        if (state.getMaterial().isToolNotRequired()) return true;
+        ItemStack itemstack = player.getHeldItem(EnumHand.MAIN_HAND);
+        if (CompatHelper.isItemBlockProxy(itemstack))
+            itemstack = CompatHelper.getItemBlockFromStack(itemstack);
 
-        return false;
-    }
+        if (itemstack.isEmpty() || !(itemstack.getItem() instanceof ItemSlab)) return false;
+        BlockSlab heldSlab = (BlockSlab) ((ItemSlab) itemstack.getItem()).getBlock();
 
-    //Gives items directly to player
-    public static void dropBlock(World world, EntityPlayer player, BlockPos pos){
-        if (player.isCreative()) return;
+        if (placedBlockState.getBlock() == heldSlab) {
+            IProperty<?> variantProperty = heldSlab.getVariantProperty();
+            Comparable<?> placedVariant = placedBlockState.getValue(variantProperty);
+            BlockSlab.EnumBlockHalf placedHalf = placedBlockState.getValue(BlockSlab.HALF);
 
-        IBlockState blockState = world.getBlockState(pos);
-        Block block = blockState.getBlock();
+            Comparable<?> heldVariant = heldSlab.getTypeForItem(itemstack);
 
-        block.harvestBlock(world, player, pos, blockState, world.getTileEntity(pos), player.getHeldItemMainhand());
-
-//        int fortune = EnchantmentHelper.getEnchantmentLevel(Enchantments.FORTUNE, player.getHeldItemMainhand());
-//        List<ItemStack> drops = blockState.getBlock().getDrops(world, pos, blockState, fortune);
-//        for (ItemStack drop : drops)
-//        {
-//            ItemHandlerHelper.giveItemToPlayer(player, drop);
-//        }
-    }
-
-    //From EntityPlayer#canPlayerEdit
-    public static boolean canPlayerEdit(EntityPlayer player, World world, BlockPos pos, ItemStack stack)
-    {
-        if (player.capabilities.allowEdit)
-        {
-            //True in creative and survival mode
-            return true;
-        }
-        else
-        {
-            //Adventure mode
-            Block block = world.getBlockState(pos).getBlock();
-            return stack.canPlaceOn(block) || stack.canEditBlocks();
-        }
-    }
-
-    //From World#mayPlace
-    public static boolean mayPlace(World world, Block blockIn, IBlockState newBlockState, BlockPos pos, boolean skipCollisionCheck, EnumFacing sidePlacedOn, @Nullable Entity placer)
-    {
-        IBlockState iblockstate1 = world.getBlockState(pos);
-        AxisAlignedBB axisalignedbb = skipCollisionCheck ? Block.NULL_AABB : blockIn.getDefaultState().getCollisionBoundingBox(world, pos);
-
-        if (axisalignedbb != Block.NULL_AABB && !world.checkNoEntityCollision(axisalignedbb.offset(pos)))
-        {
-            return false;
-        }
-
-        //Check if same block
-        //Necessary otherwise extra items will be dropped
-        if (iblockstate1 == newBlockState) {
-            return false;
-        }
-
-        if (iblockstate1.getMaterial() == Material.CIRCUITS && blockIn == Blocks.ANVIL)
+            if ((facing == EnumFacing.UP && placedHalf == BlockSlab.EnumBlockHalf.BOTTOM || facing == EnumFacing.DOWN && placedHalf == BlockSlab.EnumBlockHalf.TOP) && placedVariant == heldVariant)
             {
                 return true;
             }
-
-        //Check quickreplace
-        if (placer instanceof EntityPlayer && BuildSettingsManager.getBuildSettings(((EntityPlayer) placer)).doQuickReplace()) {
-            return true;
         }
-
-        return iblockstate1.getBlock().isReplaceable(world, pos) && blockIn.canPlaceBlockOnSide(world, pos, sidePlacedOn);
+        return false;
     }
 }

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

@@ -73,8 +73,14 @@ public class ItemRandomizerBag extends Item {
             IBlockState blockState = Block.getBlockFromItem(toPlace.getItem()).getStateForPlacement(world, pos, facing,
                     hitX, hitY, hitZ, toPlace.getMetadata(), player, hand);
 
-            SurvivalHelper.placeBlock(world, player, pos, blockState, toPlace, facing, new Vec3d(hitX, hitY, hitZ), false, true);
+            SurvivalHelper.placeBlock(world, player, pos, blockState, toPlace, facing, new Vec3d(hitX, hitY, hitZ), false, false, true);
 
+            //Synergy
+            //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;
     }

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

@@ -10,8 +10,8 @@ import net.minecraft.util.*;
 import net.minecraft.util.text.TextFormatting;
 import net.minecraft.world.World;
 import nl.requios.effortlessbuilding.BuildConfig;
-import nl.requios.effortlessbuilding.BuildSettingsManager;
 import nl.requios.effortlessbuilding.EffortlessBuilding;
+import nl.requios.effortlessbuilding.buildmodifier.ModifierSettingsManager;
 import nl.requios.effortlessbuilding.helper.ReachHelper;
 
 import javax.annotation.Nullable;
@@ -35,12 +35,12 @@ public class ItemReachUpgrade1 extends Item {
             return new ActionResult<>(EnumActionResult.PASS, player.getHeldItem(hand));
         }
 
-        BuildSettingsManager.BuildSettings buildSettings = BuildSettingsManager.getBuildSettings(player);
-        int currentLevel = buildSettings.getReachUpgrade();
+        ModifierSettingsManager.ModifierSettings modifierSettings = ModifierSettingsManager.getModifierSettings(player);
+        int currentLevel = modifierSettings.getReachUpgrade();
         if (currentLevel == 0) {
-            buildSettings.setReachUpgrade(1);
+            modifierSettings.setReachUpgrade(1);
 
-            if (world.isRemote) EffortlessBuilding.log(player, "Upgraded reach to level " + ReachHelper.getMaxReach(player));
+            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"));
@@ -55,12 +55,6 @@ public class ItemReachUpgrade1 extends Item {
         return new ActionResult<>(EnumActionResult.PASS, player.getHeldItem(hand));
     }
 
-    @Override
-    public ItemStack onItemUseFinish(ItemStack stack, World worldIn, EntityLivingBase entityLiving) {
-        EffortlessBuilding.log("used");
-        return ItemStack.EMPTY;
-    }
-
     @Override
     public void addInformation(ItemStack stack, @Nullable World world, List<String> tooltip, ITooltipFlag flag) {
         tooltip.add(TextFormatting.GRAY + "Consume to increase reach to " + TextFormatting.BLUE + BuildConfig.reach.maxReachLevel1);

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

@@ -9,8 +9,8 @@ import net.minecraft.util.*;
 import net.minecraft.util.text.TextFormatting;
 import net.minecraft.world.World;
 import nl.requios.effortlessbuilding.BuildConfig;
-import nl.requios.effortlessbuilding.BuildSettingsManager;
 import nl.requios.effortlessbuilding.EffortlessBuilding;
+import nl.requios.effortlessbuilding.buildmodifier.ModifierSettingsManager;
 import nl.requios.effortlessbuilding.helper.ReachHelper;
 
 import javax.annotation.Nullable;
@@ -34,11 +34,11 @@ public class ItemReachUpgrade2 extends Item {
             return new ActionResult<>(EnumActionResult.PASS, player.getHeldItem(hand));
         }
 
-        BuildSettingsManager.BuildSettings buildSettings = BuildSettingsManager.getBuildSettings(player);
-        int currentLevel = buildSettings.getReachUpgrade();
+        ModifierSettingsManager.ModifierSettings modifierSettings = ModifierSettingsManager.getModifierSettings(player);
+        int currentLevel = modifierSettings.getReachUpgrade();
         if (currentLevel == 1) {
-            buildSettings.setReachUpgrade(2);
-            if (world.isRemote) EffortlessBuilding.log(player, "Upgraded reach to level " + ReachHelper.getMaxReach(player));
+            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"));

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

@@ -9,8 +9,8 @@ import net.minecraft.util.*;
 import net.minecraft.util.text.TextFormatting;
 import net.minecraft.world.World;
 import nl.requios.effortlessbuilding.BuildConfig;
-import nl.requios.effortlessbuilding.BuildSettingsManager;
 import nl.requios.effortlessbuilding.EffortlessBuilding;
+import nl.requios.effortlessbuilding.buildmodifier.ModifierSettingsManager;
 import nl.requios.effortlessbuilding.helper.ReachHelper;
 
 import javax.annotation.Nullable;
@@ -34,11 +34,11 @@ public class ItemReachUpgrade3 extends Item {
             return new ActionResult<>(EnumActionResult.PASS, player.getHeldItem(hand));
         }
 
-        BuildSettingsManager.BuildSettings buildSettings = BuildSettingsManager.getBuildSettings(player);
-        int currentLevel = buildSettings.getReachUpgrade();
+        ModifierSettingsManager.ModifierSettings modifierSettings = ModifierSettingsManager.getModifierSettings(player);
+        int currentLevel = modifierSettings.getReachUpgrade();
         if (currentLevel == 2) {
-            buildSettings.setReachUpgrade(3);
-            if (world.isRemote) EffortlessBuilding.log(player, "Upgraded reach to level " + ReachHelper.getMaxReach(player));
+            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"));

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

@@ -9,9 +9,13 @@ 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.BuildModifiers;
 import nl.requios.effortlessbuilding.EffortlessBuilding;
+import nl.requios.effortlessbuilding.buildmode.BuildModes;
+import nl.requios.effortlessbuilding.buildmodifier.BuildModifiers;
 
+/***
+ * Sends a message to the server indicating that a player wants to break a block
+ */
 public class BlockBrokenMessage implements IMessage {
 
     private boolean blockHit;
@@ -80,7 +84,7 @@ public class BlockBrokenMessage implements IMessage {
             if (ctx.side == Side.SERVER) {
                 //Received serverside
                 EffortlessBuilding.proxy.getThreadListenerFromContext(ctx).addScheduledTask(() -> {
-                    BuildModifiers.onBlockBrokenMessage(ctx.getServerHandler().player, message);
+                    BuildModes.onBlockBrokenMessage(ctx.getServerHandler().player, message);
                 });
             }
             // No response packet

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

@@ -9,29 +9,38 @@ 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.BuildModifiers;
 import nl.requios.effortlessbuilding.EffortlessBuilding;
+import nl.requios.effortlessbuilding.buildmode.BuildModes;
+import nl.requios.effortlessbuilding.buildmodifier.BuildModifiers;
 import nl.requios.effortlessbuilding.proxy.ClientProxy;
+import nl.requios.effortlessbuilding.render.BlockPreviewRenderer;
 
+/***
+ * 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 implements IMessage {
 
     private boolean blockHit;
     private BlockPos blockPos;
     private EnumFacing sideHit;
     private Vec3d hitVec;
+    private boolean placeStartPos; //prevent double placing in normal mode
 
     public BlockPlacedMessage() {
         this.blockHit = false;
         this.blockPos = BlockPos.ORIGIN;
         this.sideHit = EnumFacing.UP;
         this.hitVec = new Vec3d(0, 0, 0);
+        this.placeStartPos = true;
     }
 
-    public BlockPlacedMessage(RayTraceResult result) {
+    public BlockPlacedMessage(RayTraceResult result, boolean placeStartPos) {
         this.blockHit = result.typeOfHit == RayTraceResult.Type.BLOCK;
         this.blockPos = result.getBlockPos();
         this.sideHit = result.sideHit;
         this.hitVec = result.hitVec;
+        this.placeStartPos = placeStartPos;
     }
 
     public boolean isBlockHit() {
@@ -50,6 +59,10 @@ public class BlockPlacedMessage implements IMessage {
         return hitVec;
     }
 
+    public boolean getPlaceStartPos() {
+        return placeStartPos;
+    }
+
     @Override
     public void toBytes(ByteBuf buf) {
         buf.writeBoolean(blockHit);
@@ -60,6 +73,7 @@ public class BlockPlacedMessage implements IMessage {
         buf.writeDouble(hitVec.x);
         buf.writeDouble(hitVec.y);
         buf.writeDouble(hitVec.z);
+        buf.writeBoolean(placeStartPos);
     }
 
     @Override
@@ -68,6 +82,7 @@ public class BlockPlacedMessage implements IMessage {
         blockPos = new BlockPos(buf.readInt(), buf.readInt(), buf.readInt());
         sideHit = EnumFacing.byIndex(buf.readInt());
         hitVec = new Vec3d(buf.readDouble(), buf.readDouble(), buf.readDouble());
+        placeStartPos = buf.readBoolean();
     }
 
     // The params of the IMessageHandler are <REQ, REPLY>
@@ -80,12 +95,15 @@ public class BlockPlacedMessage implements IMessage {
 
             if (ctx.side == Side.CLIENT){
                 //Received clientside
-                //Send back your info
-                return new BlockPlacedMessage(ClientProxy.previousLookAt);
+                EffortlessBuilding.proxy.getThreadListenerFromContext(ctx).addScheduledTask(() -> {
+                    //Nod RenderHandler to do the dissolve shader effect
+                    BlockPreviewRenderer.onBlocksPlaced();
+                });
+                return null;
             } else {
                 //Received serverside
                 EffortlessBuilding.proxy.getThreadListenerFromContext(ctx).addScheduledTask(() -> {
-                    BuildModifiers.onBlockPlacedMessage(ctx.getServerHandler().player, message);
+                    BuildModes.onBlockPlacedMessage(ctx.getServerHandler().player, message);
                 });
                 // No response packet
                 return null;

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

@@ -0,0 +1,45 @@
+package nl.requios.effortlessbuilding.network;
+
+import io.netty.buffer.ByteBuf;
+import net.minecraft.entity.player.EntityPlayer;
+import net.minecraft.util.IThreadListener;
+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.EffortlessBuilding;
+import nl.requios.effortlessbuilding.buildmode.BuildModes;
+
+/**
+ * Sends a message to the server indicating that a buildmode needs to be canceled for a player
+ */
+public class CancelModeMessage implements IMessage {
+
+    @Override
+    public void toBytes(ByteBuf buf) {
+
+    }
+
+    @Override
+    public void fromBytes(ByteBuf buf) {
+
+    }
+
+    // The params of the IMessageHandler are <REQ, REPLY>
+    public static class MessageHandler implements IMessageHandler<CancelModeMessage, IMessage> {
+        // Do note that the default constructor is required, but implicitly defined in this case
+
+        @Override
+        public IMessage onMessage(CancelModeMessage message, MessageContext ctx) {
+
+            // Execute the action on the main server thread by adding it as a scheduled task
+            IThreadListener threadListener = EffortlessBuilding.proxy.getThreadListenerFromContext(ctx);
+            threadListener.addScheduledTask(() -> {
+                EntityPlayer player = EffortlessBuilding.proxy.getPlayerEntityFromContext(ctx);
+
+                BuildModes.initializeMode(player);
+            });
+            // No response packet
+            return null;
+        }
+    }
+}

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

@@ -0,0 +1,62 @@
+package nl.requios.effortlessbuilding.network;
+
+import io.netty.buffer.ByteBuf;
+import net.minecraft.entity.player.EntityPlayer;
+import net.minecraft.util.IThreadListener;
+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.EffortlessBuilding;
+import nl.requios.effortlessbuilding.buildmode.BuildModes;
+import nl.requios.effortlessbuilding.buildmode.ModeOptions;
+import nl.requios.effortlessbuilding.buildmode.ModeSettingsManager;
+
+import static nl.requios.effortlessbuilding.buildmode.ModeSettingsManager.*;
+
+/**
+ * Shares mode settings (see ModeSettingsManager) between server and client
+ */
+public class ModeActionMessage implements IMessage {
+
+    private ModeOptions.ActionEnum action;
+
+    public ModeActionMessage() {
+    }
+
+    public ModeActionMessage(ModeOptions.ActionEnum action) {
+        this.action = action;
+    }
+
+    @Override
+    public void toBytes(ByteBuf buf) {
+        buf.writeInt(action.ordinal());
+    }
+
+    @Override
+    public void fromBytes(ByteBuf buf) {
+        action = ModeOptions.ActionEnum.values()[buf.readInt()];
+    }
+
+    // The params of the IMessageHandler are <REQ, REPLY>
+    public static class MessageHandler implements IMessageHandler<ModeActionMessage, IMessage> {
+        // Do note that the default constructor is required, but implicitly defined in this case
+
+        @Override
+        public IMessage onMessage(ModeActionMessage message, MessageContext ctx) {
+            //EffortlessBuilding.log("message received on " + ctx.side + " side");
+
+            // The value that was sent
+            ModeOptions.ActionEnum action = message.action;
+
+            // Execute the action on the main server thread by adding it as a scheduled task
+            IThreadListener threadListener = EffortlessBuilding.proxy.getThreadListenerFromContext(ctx);
+            threadListener.addScheduledTask(() -> {
+                EntityPlayer player = EffortlessBuilding.proxy.getPlayerEntityFromContext(ctx);
+
+                ModeOptions.performAction(player, action);
+            });
+            // No response packet
+            return null;
+        }
+    }
+}

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

@@ -0,0 +1,66 @@
+package nl.requios.effortlessbuilding.network;
+
+import io.netty.buffer.ByteBuf;
+import net.minecraft.entity.player.EntityPlayer;
+import net.minecraft.util.IThreadListener;
+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.EffortlessBuilding;
+import nl.requios.effortlessbuilding.buildmode.BuildModes;
+import nl.requios.effortlessbuilding.buildmode.ModeSettingsManager;
+
+import static nl.requios.effortlessbuilding.buildmode.ModeSettingsManager.*;
+
+/**
+ * Shares mode settings (see ModeSettingsManager) between server and client
+ */
+public class ModeSettingsMessage implements IMessage {
+
+    private ModeSettings modeSettings;
+
+    public ModeSettingsMessage() {
+    }
+
+    public ModeSettingsMessage(ModeSettings modeSettings) {
+        this.modeSettings = modeSettings;
+    }
+
+    @Override
+    public void toBytes(ByteBuf buf) {
+        buf.writeInt(modeSettings.getBuildMode().ordinal());
+    }
+
+    @Override
+    public void fromBytes(ByteBuf buf) {
+        BuildModes.BuildModeEnum buildMode = BuildModes.BuildModeEnum.values()[buf.readInt()];
+
+        modeSettings = new ModeSettings(buildMode);
+    }
+
+    // The params of the IMessageHandler are <REQ, REPLY>
+    public static class MessageHandler implements IMessageHandler<ModeSettingsMessage, IMessage> {
+        // Do note that the default constructor is required, but implicitly defined in this case
+
+        @Override
+        public IMessage onMessage(ModeSettingsMessage message, MessageContext ctx) {
+            //EffortlessBuilding.log("message received on " + ctx.side + " side");
+
+            // The value that was sent
+            ModeSettings modeSettings = message.modeSettings;
+
+            // Execute the action on the main server thread by adding it as a scheduled task
+            IThreadListener threadListener = EffortlessBuilding.proxy.getThreadListenerFromContext(ctx);
+            threadListener.addScheduledTask(() -> {
+                EntityPlayer player = EffortlessBuilding.proxy.getPlayerEntityFromContext(ctx);
+
+                // Sanitize
+                ModeSettingsManager.sanitize(modeSettings, player);
+
+                ModeSettingsManager.setModeSettings(player, modeSettings);
+            });
+            // No response packet
+            return null;
+        }
+    }
+}

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

@@ -8,24 +8,32 @@ 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.*;
-import nl.requios.effortlessbuilding.BuildSettingsManager.BuildSettings;
+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;
 
-public class BuildSettingsMessage implements IMessage {
+import static nl.requios.effortlessbuilding.buildmodifier.ModifierSettingsManager.*;
 
-    private BuildSettings buildSettings;
+/**
+ * Shares modifier settings (see ModifierSettingsManager) between server and client
+ */
+public class ModifierSettingsMessage implements IMessage {
 
-    public BuildSettingsMessage() {
+    private ModifierSettings modifierSettings;
+
+    public ModifierSettingsMessage() {
     }
 
-    public BuildSettingsMessage(BuildSettings buildSettings) {
-        this.buildSettings = buildSettings;
+    public ModifierSettingsMessage(ModifierSettings modifierSettings) {
+        this.modifierSettings = modifierSettings;
     }
 
     @Override
     public void toBytes(ByteBuf buf) {
         //MIRROR
-        Mirror.MirrorSettings m = buildSettings.getMirrorSettings();
+        Mirror.MirrorSettings m = modifierSettings.getMirrorSettings();
         buf.writeBoolean(m != null);
         if (m != null) {
             buf.writeBoolean(m.enabled);
@@ -41,7 +49,7 @@ public class BuildSettingsMessage implements IMessage {
         }
 
         //ARRAY
-        Array.ArraySettings a = buildSettings.getArraySettings();
+        Array.ArraySettings a = modifierSettings.getArraySettings();
         buf.writeBoolean(a != null);
         if (a != null) {
             buf.writeBoolean(a.enabled);
@@ -51,12 +59,12 @@ public class BuildSettingsMessage implements IMessage {
             buf.writeInt(a.count);
         }
 
-        buf.writeBoolean(buildSettings.doQuickReplace());
+        buf.writeBoolean(modifierSettings.doQuickReplace());
 
-        buf.writeInt(buildSettings.getReachUpgrade());
+        buf.writeInt(modifierSettings.getReachUpgrade());
 
         //RADIAL MIRROR
-        RadialMirror.RadialMirrorSettings r = buildSettings.getRadialMirrorSettings();
+        RadialMirror.RadialMirrorSettings r = modifierSettings.getRadialMirrorSettings();
         buf.writeBoolean(r != null);
         if (r != null) {
             buf.writeBoolean(r.enabled);
@@ -115,19 +123,19 @@ public class BuildSettingsMessage implements IMessage {
                             radialMirrorAlternate, radialMirrorRadius, radialMirrorDrawLines, radialMirrorDrawPlanes);
         }
 
-        buildSettings = new BuildSettings(m, a, r, quickReplace, reachUpgrade);
+        modifierSettings = new ModifierSettings(m, a, r, quickReplace, reachUpgrade);
     }
 
     // The params of the IMessageHandler are <REQ, REPLY>
-    public static class MessageHandler implements IMessageHandler<BuildSettingsMessage, IMessage> {
+    public static class MessageHandler implements IMessageHandler<ModifierSettingsMessage, IMessage> {
         // Do note that the default constructor is required, but implicitly defined in this case
 
         @Override
-        public IMessage onMessage(BuildSettingsMessage message, MessageContext ctx) {
+        public IMessage onMessage(ModifierSettingsMessage message, MessageContext ctx) {
             //EffortlessBuilding.log("message received on " + ctx.side + " side");
 
             // The value that was sent
-            BuildSettings buildSettings = message.buildSettings;
+            ModifierSettings modifierSettings = message.modifierSettings;
 
             // Execute the action on the main server thread by adding it as a scheduled task
             IThreadListener threadListener = EffortlessBuilding.proxy.getThreadListenerFromContext(ctx);
@@ -135,9 +143,9 @@ public class BuildSettingsMessage implements IMessage {
                 EntityPlayer player = EffortlessBuilding.proxy.getPlayerEntityFromContext(ctx);
 
                 // Sanitize
-                BuildSettingsManager.sanitize(buildSettings, player);
+                ModifierSettingsManager.sanitize(modifierSettings, player);
 
-                BuildSettingsManager.setBuildSettings(player, buildSettings);
+                ModifierSettingsManager.setModifierSettings(player, modifierSettings);
             });
             // No response packet
             return null;

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

@@ -0,0 +1,99 @@
+package nl.requios.effortlessbuilding.network;
+
+import io.netty.buffer.ByteBuf;
+import net.minecraft.block.Block;
+import net.minecraft.block.state.IBlockState;
+import net.minecraft.entity.player.EntityPlayer;
+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 net.minecraftforge.fml.relauncher.Side;
+import nl.requios.effortlessbuilding.EffortlessBuilding;
+import nl.requios.effortlessbuilding.buildmodifier.BlockSet;
+import nl.requios.effortlessbuilding.buildmodifier.UndoRedo;
+import nl.requios.effortlessbuilding.proxy.ClientProxy;
+
+import java.util.ArrayList;
+
+/***
+ * Sends a message to the client asking for its lookat (objectmouseover) data.
+ * This is then sent back with a BlockPlacedMessage.
+ */
+public class RequestLookAtMessage implements IMessage {
+    private BlockPos coordinate;
+    private IBlockState previousBlockState;
+    private IBlockState newBlockState;
+
+    public RequestLookAtMessage() {
+        coordinate = BlockPos.ORIGIN;
+        previousBlockState = null;
+        newBlockState = null;
+    }
+
+    public RequestLookAtMessage(BlockPos coordinate, IBlockState previousBlockState, IBlockState newBlockState) {
+        this.coordinate = coordinate;
+        this.previousBlockState = previousBlockState;
+        this.newBlockState = newBlockState;
+    }
+
+    public BlockPos getCoordinate() {
+        return coordinate;
+    }
+
+    public IBlockState getPreviousBlockState() {
+        return previousBlockState;
+    }
+
+    public IBlockState getNewBlockState() {
+        return newBlockState;
+    }
+
+    @Override
+    public void toBytes(ByteBuf buf) {
+        buf.writeInt(this.coordinate.getX());
+        buf.writeInt(this.coordinate.getY());
+        buf.writeInt(this.coordinate.getZ());
+        buf.writeInt(Block.getStateId(this.previousBlockState));
+        buf.writeInt(Block.getStateId(this.newBlockState));
+    }
+
+    @Override
+    public void fromBytes(ByteBuf buf) {
+        coordinate = new BlockPos(buf.readInt(), buf.readInt(), buf.readInt());
+        previousBlockState = Block.getStateById(buf.readInt());
+        newBlockState = Block.getStateById(buf.readInt());
+    }
+
+    // The params of the IMessageHandler are <REQ, REPLY>
+    public static class MessageHandler implements IMessageHandler<RequestLookAtMessage, IMessage> {
+        // Do note that the default constructor is required, but implicitly defined in this case
+
+        @Override
+        public IMessage onMessage(RequestLookAtMessage message, MessageContext ctx) {
+            //EffortlessBuilding.log("message received on " + ctx.side + " side");
+
+            if (ctx.side == Side.CLIENT){
+                //Received clientside
+                //Send back your info
+
+                EffortlessBuilding.proxy.getThreadListenerFromContext(ctx).addScheduledTask(() -> {
+                    EntityPlayer player = EffortlessBuilding.proxy.getPlayerEntityFromContext(ctx);
+
+                    //Add to undo stack clientside
+                    UndoRedo.addUndo(player, new BlockSet(
+                            new ArrayList<BlockPos>() {{add(message.getCoordinate());}},
+                            new ArrayList<IBlockState>() {{add(message.getPreviousBlockState());}},
+                            new ArrayList<IBlockState>() {{add(message.getNewBlockState());}},
+                            new Vec3d(0,0,0),
+                            message.getCoordinate(), message.getCoordinate()));
+                });
+
+                //Prevent double placing in normal mode with placeStartPos false
+                return new BlockPlacedMessage(ClientProxy.previousLookAt, false);
+            }
+            return null;
+        }
+    }
+}

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

@@ -5,7 +5,11 @@ import net.minecraft.block.SoundType;
 import net.minecraft.block.state.IBlockState;
 import net.minecraft.client.Minecraft;
 import net.minecraft.client.entity.EntityPlayerSP;
+import net.minecraft.client.gui.GuiScreen;
 import net.minecraft.client.renderer.block.model.ModelResourceLocation;
+import net.minecraft.client.renderer.texture.TextureAtlasSprite;
+import net.minecraft.client.renderer.texture.TextureMap;
+import net.minecraft.client.resources.I18n;
 import net.minecraft.client.settings.KeyBinding;
 import net.minecraft.entity.player.EntityPlayer;
 import net.minecraft.entity.player.EntityPlayerMP;
@@ -14,12 +18,18 @@ import net.minecraft.item.ItemBlock;
 import net.minecraft.item.ItemStack;
 import net.minecraft.util.EnumHand;
 import net.minecraft.util.IThreadListener;
+import net.minecraft.util.ResourceLocation;
 import net.minecraft.util.SoundCategory;
 import net.minecraft.util.math.BlockPos;
 import net.minecraft.util.math.RayTraceResult;
 import net.minecraft.util.text.TextFormatting;
+import net.minecraftforge.client.event.GuiOpenEvent;
 import net.minecraftforge.client.event.ModelRegistryEvent;
+import net.minecraftforge.client.event.TextureStitchEvent;
 import net.minecraftforge.client.model.ModelLoader;
+import net.minecraftforge.client.settings.IKeyConflictContext;
+import net.minecraftforge.client.settings.KeyConflictContext;
+import net.minecraftforge.client.settings.KeyModifier;
 import net.minecraftforge.event.entity.EntityJoinWorldEvent;
 import net.minecraftforge.fml.client.registry.ClientRegistry;
 import net.minecraftforge.fml.common.Mod;
@@ -27,45 +37,67 @@ 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.eventhandler.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.BuildModifiers;
-import nl.requios.effortlessbuilding.BuildSettingsManager;
 import nl.requios.effortlessbuilding.EffortlessBuilding;
-import nl.requios.effortlessbuilding.gui.SettingsGui;
+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.gui.buildmode.RadialMenu;
+import nl.requios.effortlessbuilding.gui.buildmodifier.ModifierSettingsGui;
+import nl.requios.effortlessbuilding.compatibility.CompatHelper;
 import nl.requios.effortlessbuilding.helper.ReachHelper;
-import nl.requios.effortlessbuilding.helper.RenderHelper;
-import nl.requios.effortlessbuilding.item.ItemRandomizerBag;
-import nl.requios.effortlessbuilding.network.BlockBrokenMessage;
-import nl.requios.effortlessbuilding.network.BlockPlacedMessage;
-import nl.requios.effortlessbuilding.network.BuildSettingsMessage;
+import nl.requios.effortlessbuilding.render.RenderHandler;
+import nl.requios.effortlessbuilding.render.ShaderHandler;
+import nl.requios.effortlessbuilding.network.*;
 import org.lwjgl.input.Keyboard;
 
+import javax.annotation.Nullable;
+import java.util.HashMap;
+
 @Mod.EventBusSubscriber(Side.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;
 
+    public static int ticksInGame = 0;
+
+    private static final HashMap<BuildModes.BuildModeEnum, TextureAtlasSprite> buildModeIcons = new HashMap<>();
+    private static final HashMap<ModeOptions.ActionEnum, TextureAtlasSprite> modeOptionIcons = new HashMap<>();
+
     @Override
     public void preInit(FMLPreInitializationEvent event) {
+        ShaderHandler.init();
     }
 
     @Override
     public void init(FMLInitializationEvent event) {
         // register key bindings
-        keyBindings = new KeyBinding[3];
+        keyBindings = new KeyBinding[7];
 
         // instantiate the key bindings
-        keyBindings[0] = new KeyBinding("key.effortlessbuilding.hud.desc", Keyboard.KEY_ADD, "key.effortlessbuilding.category");
-        keyBindings[1] = new KeyBinding("key.effortlessbuilding.replace.desc", Keyboard.KEY_SUBTRACT, "key.effortlessbuilding.category");
-        keyBindings[2] = new KeyBinding("key.effortlessbuilding.creative.desc", Keyboard.KEY_F4, "key.effortlessbuilding.category");
+        keyBindings[0] = new KeyBinding("key.effortlessbuilding.hud.desc", KeyConflictContext.UNIVERSAL, Keyboard.KEY_ADD, "key.effortlessbuilding.category");
+        keyBindings[1] = new KeyBinding("key.effortlessbuilding.replace.desc", KeyConflictContext.IN_GAME, Keyboard.KEY_SUBTRACT, "key.effortlessbuilding.category");
+        keyBindings[2] = new KeyBinding("key.effortlessbuilding.creative.desc", KeyConflictContext.IN_GAME, Keyboard.KEY_NONE, "key.effortlessbuilding.category");
+        keyBindings[3] = new KeyBinding("key.effortlessbuilding.mode.desc", KeyConflictContext.IN_GAME, Keyboard.KEY_LMENU, "key.effortlessbuilding.category") {
+            @Override
+            public boolean conflicts(KeyBinding other) {
+                //Does not conflict with Chisels and Bits radial menu
+                if (other.getKeyCode() == 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, Keyboard.KEY_Z, "key.effortlessbuilding.category");
+        keyBindings[5] = new KeyBinding("key.effortlessbuilding.redo.desc", KeyConflictContext.IN_GAME, KeyModifier.CONTROL, Keyboard.KEY_Y, "key.effortlessbuilding.category");
+        keyBindings[6] = new KeyBinding("Reload shaders", Keyboard.KEY_TAB, "key.effortlessbuilding.category");
 
         // register all the key bindings
         for (int i = 0; i < keyBindings.length; ++i) {
@@ -107,111 +139,43 @@ public class ClientProxy implements IProxy {
     @SubscribeEvent
     public static void onEntityJoinWorld(EntityJoinWorldEvent event) {
         if (event.getEntity() == Minecraft.getMinecraft().player) {
-            event.getWorld().addEventListener(new RenderHelper());
+            event.getWorld().addEventListener(new RenderHandler());
         }
     }
 
     @SubscribeEvent
-    public static void onMouseInput(InputEvent.MouseInputEvent event) {
-        Minecraft mc = Minecraft.getMinecraft();
-        EntityPlayerSP player = mc.player;
+    public static void onTextureStitch(final TextureStitchEvent.Pre event) {
+        //register icon textures
+        final TextureMap map = event.getMap();
 
-        if (!BuildModifiers.isEnabled(BuildSettingsManager.getBuildSettings(player), player.getPosition())) return;
-
-        if (mc.gameSettings.keyBindUseItem.isPressed()) {
-            //KeyBinding.setKeyBindState(mc.gameSettings.keyBindUseItem.getKeyCode(), false);
-
-            ItemStack currentItemStack = player.getHeldItem(EnumHand.MAIN_HAND);
-            if (currentItemStack.getItem() instanceof ItemBlock ||
-                (currentItemStack.getItem() instanceof ItemRandomizerBag && !player.isSneaking())) {
-                //find position in distance
-                RayTraceResult lookingAt = getLookingAt(player);
-                if (lookingAt != null && lookingAt.typeOfHit == RayTraceResult.Type.BLOCK) {
-                    EffortlessBuilding.packetHandler.sendToServer(new BlockPlacedMessage(lookingAt));
-
-                    //play sound if further than normal
-                    if ((lookingAt.hitVec.subtract(player.getPositionEyes(1f))).lengthSquared() > 25f) {
-                        BlockPos blockPos = lookingAt.getBlockPos();
-                        IBlockState state = player.world.getBlockState(blockPos);
-                        SoundType soundtype = state.getBlock().getSoundType(state, player.world, blockPos, player);
-                        player.world.playSound(player, blockPos, soundtype.getPlaceSound(), SoundCategory.BLOCKS,
-                                (soundtype.getVolume() + 1.0F) / 2.0F, soundtype.getPitch() * 0.8F);
-                        player.swingArm(EnumHand.MAIN_HAND);
-                    }
+        for ( final BuildModes.BuildModeEnum mode : BuildModes.BuildModeEnum.values() )
+        {
+            final ResourceLocation sprite = new ResourceLocation("effortlessbuilding", "icons/" + mode.name().toLowerCase());
+            buildModeIcons.put( mode, map.registerSprite(sprite));
         }
+
+        for ( final ModeOptions.ActionEnum action : ModeOptions.ActionEnum.values() )
+        {
+            final ResourceLocation sprite = new ResourceLocation("effortlessbuilding", "icons/" + action.name().toLowerCase());
+            modeOptionIcons.put( action, map.registerSprite(sprite));
         }
     }
 
-        if (mc.gameSettings.keyBindAttack.isKeyDown()) {
-            //KeyBinding.setKeyBindState(mc.gameSettings.keyBindAttack.getKeyCode(), false);
-
-            //Break block in distance in creative (or survival if enabled in config)
-            if (ReachHelper.canBreakFar(player)) {
-                if (breakCooldown <= 0) {
-                    breakCooldown = 6;
-                    RayTraceResult lookingAt = getLookingAt(player);
-                    if (lookingAt != null && lookingAt.typeOfHit == RayTraceResult.Type.BLOCK) {
-                        EffortlessBuilding.packetHandler.sendToServer(new BlockBrokenMessage(lookingAt));
-
-                        //play sound
-                        BlockPos blockPos = lookingAt.getBlockPos();
-                        IBlockState state = player.world.getBlockState(blockPos);
-                        SoundType soundtype = state.getBlock().getSoundType(state, player.world, blockPos, player);
-                        player.world.playSound(player, blockPos, soundtype.getBreakSound(), SoundCategory.BLOCKS,
-                                (soundtype.getVolume() + 1.0F) / 2.0F, soundtype.getPitch() * 0.8F);
-                        player.swingArm(EnumHand.MAIN_HAND);
-                    }
-                } else {
-                    breakCooldown--;
-                }
-            }
-        } else {
-            breakCooldown = 0;
-        }
-        event.setResult(Event.Result.ALLOW);
+    public static TextureAtlasSprite getBuildModeIcon(BuildModes.BuildModeEnum mode) {
+        return buildModeIcons.get(mode);
     }
 
-    @SubscribeEvent(priority = EventPriority.NORMAL, receiveCanceled = true)
-    public static void onKeyPress(InputEvent.KeyInputEvent event) {
-        EntityPlayerSP player = Minecraft.getMinecraft().player;
-
-        //Remember to send packet to server if necessary
-        //Show HUD
-        if (keyBindings[0].isPressed()) {
-            //Disabled if max reach is 0, might be set in the config that way.
-            if (ReachHelper.getMaxReach(player) == 0) {
-                EffortlessBuilding.log(player, "Effortless Building is disabled until your reach has increased. Increase your reach with craftable reach upgrades.");
-            } else {
-                if (Minecraft.getMinecraft().currentScreen == null) {
-                    Minecraft.getMinecraft().displayGuiScreen(new SettingsGui());
-                } else {
-                    player.closeScreen();
-                }
-            }
-        }
-
-        //QuickReplace toggle
-        if (keyBindings[1].isPressed()) {
-            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));
-        }
-
-        //Creative/survival mode toggle
-        if (keyBindings[2].isPressed()) {
-            if (player.isCreative()) {
-                player.sendChatMessage("/gamemode 0");
-            } else {
-                player.sendChatMessage("/gamemode 1");
-            }
-        }
+    public static TextureAtlasSprite getModeOptionIcon(ModeOptions.ActionEnum action) {
+        return modeOptionIcons.get(action);
     }
 
     @SubscribeEvent
     public static void onClientTick(TickEvent.ClientTickEvent event) {
-        if (event.phase != TickEvent.Phase.START) return;
 
+        if (event.phase == TickEvent.Phase.START) {
+            onMouseInput();
+
+            //Update previousLookAt
             RayTraceResult objectMouseOver = Minecraft.getMinecraft().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;
@@ -227,19 +191,192 @@ public class ClientProxy implements IProxy {
                     currentLookAt = objectMouseOver;
                     previousLookAt = objectMouseOver;
                 } else {
-                if (currentLookAt.getBlockPos() != objectMouseOver.getBlockPos()){
+                    if (currentLookAt.getBlockPos() != objectMouseOver.getBlockPos()) {
                         previousLookAt = currentLookAt;
                         currentLookAt = objectMouseOver;
                     }
                 }
             }
+        } else if (event.phase == TickEvent.Phase.END){
+            GuiScreen gui = Minecraft.getMinecraft().currentScreen;
+            if(gui == null || !gui.doesGuiPauseGame()) {
+                ticksInGame++;
+            }
         }
 
+    }
+
+    private static void onMouseInput() {
+        Minecraft mc = Minecraft.getMinecraft();
+        EntityPlayerSP player = mc.player;
+        if (player == null) return;
+        BuildModes.BuildModeEnum buildMode = ModeSettingsManager.getModeSettings(player).getBuildMode();
+
+        if (Minecraft.getMinecraft().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(EnumHand.MAIN_HAND);
+                if (currentItemStack.getItem() instanceof ItemBlock ||
+                    (CompatHelper.isItemBlockProxy(currentItemStack) && !player.isSneaking())) {
+
+                    ItemStack itemStack = CompatHelper.getItemBlockFromStack(currentItemStack);
+
+                    //find position in distance
+                    RayTraceResult lookingAt = getLookingAt(player);
+                    BuildModes.onBlockPlacedMessage(player, lookingAt == null ? new BlockPlacedMessage() : new BlockPlacedMessage(lookingAt, true));
+                    EffortlessBuilding.packetHandler.sendToServer(lookingAt == null ? new BlockPlacedMessage() : new BlockPlacedMessage(lookingAt, true));
+
+                    //play sound if further than normal
+                    if (lookingAt != null && lookingAt.typeOfHit == RayTraceResult.Type.BLOCK &&
+                        (lookingAt.hitVec.subtract(player.getPositionEyes(1f))).lengthSquared() > 25f &&
+                        itemStack.getItem() instanceof ItemBlock) {
+
+                        IBlockState state = ((ItemBlock) itemStack.getItem()).getBlock().getDefaultState();
+                        BlockPos blockPos = lookingAt.getBlockPos();
+                        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(EnumHand.MAIN_HAND);
+                    }
+                }
+            } 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;
+                RayTraceResult lookingAt = getLookingAt(player);
+
+                BuildModes.onBlockBrokenMessage(player, lookingAt == null ? new BlockBrokenMessage() : new BlockBrokenMessage(lookingAt));
+                EffortlessBuilding.packetHandler.sendToServer(lookingAt == null ? new BlockBrokenMessage() : new BlockBrokenMessage(lookingAt));
+
+                //play sound if further than normal
+                if (lookingAt != null && lookingAt.typeOfHit == RayTraceResult.Type.BLOCK &&
+                    (lookingAt.hitVec.subtract(player.getPositionEyes(1f))).lengthSquared() > 25f) {
+
+                    BlockPos blockPos = lookingAt.getBlockPos();
+                    IBlockState 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(EnumHand.MAIN_HAND);
+                }
+            } 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;
+        }
+
+        if (mc.gameSettings.keyBindAttack.isPressed()) {
+            if (RadialMenu.instance.isVisible()) {
+                EffortlessBuilding.log(player, "mouse click");
+            }
+        }
+
+    }
+
+    @SubscribeEvent(priority = EventPriority.NORMAL, receiveCanceled = true)
+    public static void onKeyPress(InputEvent.KeyInputEvent event) {
+        EntityPlayerSP player = Minecraft.getMinecraft().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"));
+            EffortlessBuilding.packetHandler.sendToServer(new ModifierSettingsMessage(modifierSettings));
+        }
+
+        //Creative/survival mode toggle
+        if (keyBindings[2].isPressed()) {
+            if (player.isCreative()) {
+                player.sendChatMessage("/gamemode 0");
+            } else {
+                player.sendChatMessage("/gamemode 1");
+            }
+        }
+
+        //Undo (Ctrl+Z)
+        if (keyBindings[4].isPressed()) {
+            ModeOptions.ActionEnum action = ModeOptions.ActionEnum.UNDO;
+            ModeOptions.performAction(player, action);
+            EffortlessBuilding.packetHandler.sendToServer(new ModeActionMessage(action));
+        }
+
+        //Redo (Ctrl+Y)
+        if (keyBindings[5].isPressed()) {
+            ModeOptions.ActionEnum action = ModeOptions.ActionEnum.REDO;
+            ModeOptions.performAction(player, action);
+            EffortlessBuilding.packetHandler.sendToServer(new ModeActionMessage(action));
+        }
+
+        //For shader development
+        if (keyBindings.length >= 7 && keyBindings[6].isPressed()) {
+            ShaderHandler.init();
+            EffortlessBuilding.log(player, "Reloaded shaders");
+        }
+
+    }
+
+    public static void openModifierSettings() {
+        EntityPlayerSP player = Minecraft.getMinecraft().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 (Minecraft.getMinecraft().currentScreen == null) {
+                Minecraft.getMinecraft().displayGuiScreen(new ModifierSettingsGui());
+            } else {
+                player.closeScreen();
+            }
+        }
+    }
+
+    @SubscribeEvent
+    public static void onGuiOpen(GuiOpenEvent event) {
+        EntityPlayer player = Minecraft.getMinecraft().player;
+        if (player != null) {
+            BuildModes.initializeMode(player);
+        }
+    }
+
+    @Nullable
     public static RayTraceResult getLookingAt(EntityPlayer player) {
 //        World world = player.world;
 
         //base distance off of player ability (config)
-        float raytraceRange = ReachHelper.getMaxReach(player) / 4f;
+        float raytraceRange = ReachHelper.getPlacementReach(player);
 
 //        Vec3d look = player.getLookVec();
 //        Vec3d start = new Vec3d(player.posX, player.posY + player.getEyeHeight(), player.posZ);
@@ -247,4 +384,8 @@ public class ClientProxy implements IProxy {
         return player.rayTrace(raytraceRange, 1f);
 //        return world.rayTraceBlocks(start, end, false, false, false);
     }
+
+    public static void logTranslate(String key) {
+        EffortlessBuilding.log(Minecraft.getMinecraft().player, I18n.format(key), true);
+    }
 }

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

@@ -0,0 +1,420 @@
+package nl.requios.effortlessbuilding.render;
+
+import net.minecraft.block.SoundType;
+import net.minecraft.block.state.IBlockState;
+import net.minecraft.client.Minecraft;
+import net.minecraft.client.entity.EntityPlayerSP;
+import net.minecraft.client.renderer.BlockRendererDispatcher;
+import net.minecraft.client.renderer.OpenGlHelper;
+import net.minecraft.client.renderer.texture.TextureMap;
+import net.minecraft.entity.player.EntityPlayer;
+import net.minecraft.item.ItemStack;
+import net.minecraft.util.EnumFacing;
+import net.minecraft.util.SoundCategory;
+import net.minecraft.util.math.*;
+import net.minecraftforge.fml.relauncher.Side;
+import net.minecraftforge.fml.relauncher.SideOnly;
+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.ARBMultitexture;
+import org.lwjgl.opengl.GL11;
+import org.lwjgl.opengl.GL20;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+import java.util.function.Consumer;
+
+@SideOnly(Side.CLIENT)
+public class BlockPreviewRenderer {
+    private static List<BlockPos> previousCoordinates;
+    private static List<IBlockState> 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<IBlockState> blockStates;
+        List<ItemStack> itemStacks;
+        BlockPos firstPos;
+        BlockPos secondPos;
+        boolean breaking;
+
+        public PlacedData(float time, List<BlockPos> coordinates, List<IBlockState> 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 = 1;
+
+    public static void render(EntityPlayer player, ModifierSettings modifierSettings, ModeSettings modeSettings) {
+
+        //Render placed blocks with dissolve effect
+        //Use fancy shader if config allows, otherwise no dissolve
+        if (BuildConfig.visuals.useShaders) {
+            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;
+                    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;
+            return placed.time + totalTime < ClientProxy.ticksInGame;
+        });
+
+        //Render block previews
+        RayTraceResult lookingAt = ClientProxy.getLookingAt(player);
+        if (modeSettings.getBuildMode() == BuildModes.BuildModeEnum.NORMAL) lookingAt = Minecraft.getMinecraft().objectMouseOver;
+
+        ItemStack mainhand = player.getHeldItemMainhand();
+        boolean toolInHand = !(!mainhand.isEmpty() && CompatHelper.isItemBlockProxy(mainhand));
+
+        BlockPos startPos = null;
+        EnumFacing 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.typeOfHit == RayTraceResult.Type.BLOCK) {
+            startPos = lookingAt.getBlockPos();
+
+            //Check if tool (or none) in hand
+            boolean replaceable = player.world.getBlockState(startPos).getBlock().isReplaceable(player.world, startPos);
+            boolean becomesDoubleSlab = SurvivalHelper.doesBecomeDoubleSlab(player, startPos, lookingAt.sideHit);
+            if (!modifierSettings.doQuickReplace() && !toolInHand && !replaceable && !becomesDoubleSlab) {
+                startPos = startPos.offset(lookingAt.sideHit);
+            }
+
+            //Get under tall grass and other replaceable blocks
+            if (modifierSettings.doQuickReplace() && !toolInHand && replaceable) {
+                startPos = startPos.down();
+            }
+
+            sideHit = lookingAt.sideHit;
+            hitVec = lookingAt.hitVec;
+        }
+
+        //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());
+
+                BlockPos firstPos = BlockPos.ORIGIN, secondPos = BlockPos.ORIGIN;
+                //Remember first and last pos for the shader
+                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<IBlockState> 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 (startCoordinates.size() > 1 && blockStates.size() > 1 && soundTime < ClientProxy.ticksInGame - 0) {
+                        soundTime = ClientProxy.ticksInGame;
+
+                        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 && newCoordinates.size() < BuildConfig.visuals.shaderTreshold) {
+
+                        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--) {
+                            AxisAlignedBB boundingBox = blockStates.get(i).getBoundingBox(player.world, newCoordinates.get(i));
+                            RenderHandler.renderBlockOutline(newCoordinates.get(i), boundingBox, color);
+                        }
+
+                        RenderHandler.endLines();
+
+                        blockCount = newCoordinates.size();
+                    }
+
+                    //Display block count and dimensions in actionbar
+                    if (BuildModes.isActive(player)) {
+                        BlockPos dim = secondPos.subtract(firstPos);
+                        dim = new BlockPos(Math.abs(dim.getX()) + 1, Math.abs(dim.getY()) + 1, Math.abs(dim.getZ()) + 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.getMinecraft().objectMouseOver;
+            RayTraceResult breakingRaytrace = ReachHelper.canBreakFar(player) ? lookingAt : objectMouseOver;
+            if (toolInHand && breakingRaytrace != null && breakingRaytrace.typeOfHit == RayTraceResult.Type.BLOCK) {
+                List<BlockPos> breakCoordinates = BuildModifiers.findCoordinates(player, breakingRaytrace.getBlockPos());
+
+                //Only render first outline if further than normal reach
+                boolean excludeFirst = objectMouseOver != null && objectMouseOver.typeOfHit == RayTraceResult.Type.BLOCK;
+                for (int i = excludeFirst ? 1 : 0; i < breakCoordinates.size(); i++) {
+                    BlockPos coordinate = breakCoordinates.get(i);
+
+                    IBlockState blockState = player.world.getBlockState(coordinate);
+                    if (!blockState.getBlock().isAir(blockState, player.world, coordinate)) {
+                        if (SurvivalHelper.canBreak(player.world, player, coordinate) || i == 0) {
+                            AxisAlignedBB boundingBox = blockState.getBoundingBox(player.world, coordinate);
+                            RenderHandler.renderBlockOutline(coordinate, boundingBox, 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;
+    }
+
+    protected static int renderBlockPreviews(List<BlockPos> coordinates, List<IBlockState> blockStates,
+                                              List<ItemStack> itemStacks, float dissolve, BlockPos firstPos,
+                                              BlockPos secondPos, boolean checkCanPlace, boolean red) {
+        EntityPlayer player = Minecraft.getMinecraft().player;
+        ModifierSettings modifierSettings = ModifierSettingsManager.getModifierSettings(player);
+        BlockRendererDispatcher dispatcher = Minecraft.getMinecraft().getBlockRendererDispatcher();
+        int blocksValid = 0;
+
+        if (coordinates.isEmpty()) return blocksValid;
+
+        for (int i = coordinates.size() - 1; i >= 0; i--) {
+            BlockPos blockPos = coordinates.get(i);
+            IBlockState 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(), EnumFacing.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<IBlockState> blockStates,
+                                      BlockPos firstPos, BlockPos secondPos) {
+        EntityPlayerSP player = Minecraft.getMinecraft().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) {
+
+                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<IBlockState> blockStates,
+                                      BlockPos firstPos, BlockPos secondPos) {
+        EntityPlayerSP player = Minecraft.getMinecraft().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) {
+
+                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.getMinecraft();
+        return (Integer shader) -> {
+            int percentileUniform = GL20.glGetUniformLocation(shader, "dissolve");
+            int highlightUniform = GL20.glGetUniformLocation(shader, "highlight");
+            int redUniform = GL20.glGetUniformLocation(shader, "red");
+            int blockposUniform = GL20.glGetUniformLocation(shader, "blockpos");
+            int firstposUniform = GL20.glGetUniformLocation(shader, "firstpos");
+            int secondposUniform = GL20.glGetUniformLocation(shader, "secondpos");
+            int imageUniform = GL20.glGetUniformLocation(shader, "image");
+            int maskUniform = GL20.glGetUniformLocation(shader, "mask");
+
+            //image
+            GL20.glUniform1i(imageUniform, primaryTextureUnit);
+            OpenGlHelper.setActiveTexture(ARBMultitexture.GL_TEXTURE0_ARB + primaryTextureUnit);
+
+            GL11.glBindTexture(GL11.GL_TEXTURE_2D, mc.renderEngine.getTexture(TextureMap.LOCATION_BLOCKS_TEXTURE).getGlTextureId());
+
+//            GlStateManager.enableTexture2D();
+//            GL11.glGetInteger(GL11.GL_TEXTURE_BINDING_2D);
+
+            //mask
+            GL20.glUniform1i(maskUniform, secondaryTextureUnit);
+            OpenGlHelper.setActiveTexture(ARBMultitexture.GL_TEXTURE0_ARB + secondaryTextureUnit);
+            GL11.glBindTexture(GL11.GL_TEXTURE_2D, mc.renderEngine.getTexture(ShaderHandler.shaderMaskTextureLocation).getGlTextureId());
+
+            //blockpos
+            GL20.glUniform3f(blockposUniform, (float) blockpos.x, (float) blockpos.y, (float) blockpos.z);
+            GL20.glUniform3f(firstposUniform, (float) firstpos.x, (float) firstpos.y, (float) firstpos.z);
+            GL20.glUniform3f(secondposUniform, (float) secondpos.x, (float) secondpos.y, (float) secondpos.z);
+
+            //dissolve
+            GL20.glUniform1f(percentileUniform, dissolve);
+            //highlight
+            GL20.glUniform1i(highlightUniform, highlight ? 1 : 0);
+            //red
+            GL20.glUniform1i(redUniform, red ? 1 : 0);
+        };
+    }
+
+    private static void sortOnDistanceToPlayer(List<BlockPos> coordinates, EntityPlayer player) {
+
+        Collections.sort(coordinates, (lhs, rhs) -> {
+            // -1 - less than, 1 - greater than, 0 - equal
+            double lhsDistanceToPlayer = new Vec3d(lhs).subtract(player.getPositionEyes(1f)).lengthSquared();
+            double rhsDistanceToPlayer = new Vec3d(rhs).subtract(player.getPositionEyes(1f)).lengthSquared();
+            return (int) Math.signum(lhsDistanceToPlayer - rhsDistanceToPlayer);
+        });
+
+    }
+}

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

@@ -0,0 +1,175 @@
+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.fml.relauncher.Side;
+import net.minecraftforge.fml.relauncher.SideOnly;
+import nl.requios.effortlessbuilding.buildmodifier.Mirror;
+import nl.requios.effortlessbuilding.buildmodifier.ModifierSettingsManager;
+import nl.requios.effortlessbuilding.buildmodifier.RadialMirror;
+import org.lwjgl.opengl.GL11;
+import org.lwjgl.util.Color;
+
+@SideOnly(Side.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 +1,334 @@
+package nl.requios.effortlessbuilding.render;
+
+import net.minecraft.block.state.IBlockState;
+import net.minecraft.client.Minecraft;
+import net.minecraft.client.audio.PositionedSoundRecord;
+import net.minecraft.client.entity.EntityPlayerSP;
+import net.minecraft.client.gui.ScaledResolution;
+import net.minecraft.client.renderer.BlockRendererDispatcher;
+import net.minecraft.client.renderer.GlStateManager;
+import net.minecraft.client.renderer.RenderGlobal;
+import net.minecraft.client.renderer.texture.TextureMap;
+import net.minecraft.client.resources.I18n;
+import net.minecraft.client.settings.KeyBinding;
+import net.minecraft.entity.Entity;
+import net.minecraft.entity.player.EntityPlayer;
+import net.minecraft.init.SoundEvents;
+import net.minecraft.util.EnumHand;
+import net.minecraft.util.ResourceLocation;
+import net.minecraft.util.SoundCategory;
+import net.minecraft.util.SoundEvent;
+import net.minecraft.util.math.AxisAlignedBB;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.math.Vec3d;
+import net.minecraft.world.IWorldEventListener;
+import net.minecraft.world.World;
+import net.minecraftforge.client.event.RenderGameOverlayEvent;
+import net.minecraftforge.client.event.RenderWorldLastEvent;
+import net.minecraftforge.fml.common.Mod;
+import net.minecraftforge.fml.common.eventhandler.SubscribeEvent;
+import net.minecraftforge.fml.relauncher.Side;
+import nl.requios.effortlessbuilding.EffortlessBuilding;
+import nl.requios.effortlessbuilding.buildmode.ModeOptions;
+import nl.requios.effortlessbuilding.buildmode.ModeSettingsManager;
+import nl.requios.effortlessbuilding.buildmodifier.BuildModifiers;
+import nl.requios.effortlessbuilding.buildmodifier.ModifierSettingsManager;
+import nl.requios.effortlessbuilding.gui.buildmode.RadialMenu;
+import nl.requios.effortlessbuilding.compatibility.CompatHelper;
+import nl.requios.effortlessbuilding.helper.ReachHelper;
+import nl.requios.effortlessbuilding.helper.SurvivalHelper;
+import nl.requios.effortlessbuilding.network.ModeActionMessage;
+import nl.requios.effortlessbuilding.network.ModeSettingsMessage;
+import nl.requios.effortlessbuilding.proxy.ClientProxy;
+import org.lwjgl.input.Mouse;
+import org.lwjgl.opengl.GL11;
+import org.lwjgl.opengl.GL14;
+
+import javax.annotation.Nullable;
+import java.util.List;
+
+/***
+ * Main render class for Effortless Building
+ */
+@Mod.EventBusSubscriber(Side.CLIENT)
+public class RenderHandler implements IWorldEventListener {
+
+    @SubscribeEvent
+    public static void onRender(RenderWorldLastEvent event) {
+        EntityPlayer player = Minecraft.getMinecraft().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.getMinecraft();
+        EntityPlayerSP 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();
+        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);
+                        EffortlessBuilding.packetHandler.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);
+                        EffortlessBuilding.packetHandler.sendToServer(new ModeActionMessage(action));
+                    }
+
+                    playRadialMenuSound();
+                }
+
+                RadialMenu.instance.actionUsed = true;
+                RadialMenu.instance.decreaseVisibility();
+            }
+
+            if (RadialMenu.instance.isVisible()) {
+
+                final ScaledResolution res = event.getResolution();
+                RadialMenu.instance.configure(res.getScaledWidth(), res.getScaledHeight());
+
+                if (!wasVisible) {
+                    mc.inGameHasFocus = false;
+                    mc.mouseHelper.ungrabMouseCursor();
+                }
+
+                if (mc.inGameHasFocus) {
+                    KeyBinding.unPressAllKeys();
+                }
+
+                final int mouseX = Mouse.getX() * res.getScaledWidth() / mc.displayWidth;
+                final int mouseY = res.getScaledHeight() - Mouse.getY() * res.getScaledHeight() / mc.displayHeight - 1;
+
+                net.minecraftforge.client.ForgeHooksClient.drawScreen(RadialMenu.instance, mouseX, mouseY, event.getPartialTicks());
+            } else {
+                if (wasVisible && RadialMenu.instance.doAction != ModeOptions.ActionEnum.OPEN_MODIFIER_SETTINGS) {
+                    mc.setIngameFocus();
+                }
+            }
+        }
+    }
+
+    public static void playRadialMenuSound() {
+        final float volume = 0.1f;
+        if (volume >= 0.0001f) {
+            final PositionedSoundRecord psr = new PositionedSoundRecord(SoundEvents.UI_BUTTON_CLICK, SoundCategory.MASTER,
+                    volume, 1.0f, Minecraft.getMinecraft().player.getPosition());
+            Minecraft.getMinecraft().getSoundHandler().playSound(psr);
+        }
+    }
+
+    private static void begin(float partialTicks) {
+        EntityPlayer player = Minecraft.getMinecraft().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);
+
+        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.getMinecraft().renderEngine.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, IBlockState blockState) {
+        GlStateManager.pushMatrix();
+        GlStateManager.translate(blockPos.getX(), blockPos.getY(), blockPos.getZ());
+        GlStateManager.rotate(-90.0F, 0.0F, 1.0F, 0.0F);
+        GlStateManager.translate(-0.01f, -0.01f, 0.01f);
+        GlStateManager.scale(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);
+
+        RenderGlobal.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, AxisAlignedBB boundingBox, Vec3d color) {
+        GL11.glLineWidth(2);
+
+        AxisAlignedBB aabb = boundingBox.offset(pos).grow(0.0020000000949949026);
+
+        RenderGlobal.drawSelectionBoundingBox(aabb, (float) color.x, (float) color.y, (float) color.z, 0.4f);
+    }
+
+
+
+    //IWORLDEVENTLISTENER IMPLEMENTATION
+    @Override
+    public void notifyBlockUpdate(World worldIn, BlockPos pos, IBlockState oldState, IBlockState newState, int flags) {
+
+    }
+
+    @Override
+    public void notifyLightSet(BlockPos pos) {
+
+    }
+
+    @Override
+    public void markBlockRangeForRenderUpdate(int x1, int y1, int z1, int x2, int y2, int z2) {
+
+    }
+
+    @Override
+    public void playSoundToAllNearExcept(@Nullable EntityPlayer player, SoundEvent soundIn, SoundCategory category,
+                                         double x, double y, double z, float volume, float pitch) {
+
+    }
+
+    @Override
+    public void playRecord(SoundEvent soundIn, BlockPos pos) {
+
+    }
+
+    @Override
+    public void spawnParticle(int particleID, boolean ignoreRange, double xCoord, double yCoord, double zCoord,
+                              double xSpeed, double ySpeed, double zSpeed, int... parameters) {
+
+    }
+
+    @Override
+    public void spawnParticle(int id, boolean ignoreRange, boolean p_190570_3_, double x, double y, double z,
+                              double xSpeed, double ySpeed, double zSpeed, int... parameters) {
+
+    }
+
+    @Override
+    public void onEntityAdded(Entity entityIn) {
+
+    }
+
+    @Override
+    public void onEntityRemoved(Entity entityIn) {
+
+    }
+
+    @Override
+    public void broadcastSound(int soundID, BlockPos pos, int data) {
+
+    }
+
+    @Override
+    public void playEvent(EntityPlayer player, int type, BlockPos blockPosIn, int data) {
+
+    }
+
+    //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.getMinecraft();
+
+        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 +1,200 @@
+/**
+ * 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.client.renderer.OpenGlHelper;
+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 = GL20.GL_VERTEX_SHADER;
+    private static final int FRAG_ST = GL20.GL_FRAGMENT_SHADER;
+
+    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;
+
+        GL20.glUseProgram(shader);
+
+        if(shader != 0) {
+            int time = GL20.glGetUniformLocation(shader, "time");
+            GL20.glUniform1i(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() {
+        return BuildConfig.visuals.useShaders && OpenGlHelper.shadersSupported && OpenGlHelper.openGL21; //Only GL2.1 shaders
+    }
+
+    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 = GL20.glCreateProgram();
+        if(program == 0)
+            return 0;
+
+        if(vert != null)
+            GL20.glAttachShader(program, vertId);
+        if(frag != null)
+            GL20.glAttachShader(program, fragId);
+
+        GL20.glLinkProgram(program);
+        if(GL20.glGetProgrami(program, GL20.GL_LINK_STATUS) == GL11.GL_FALSE) {
+            EffortlessBuilding.logger.log(Level.ERROR, getProgramLogInfo(program));
+            return 0;
+        }
+
+        GL20.glValidateProgram(program);
+        if (GL20.glGetProgrami(program, GL20.GL_VALIDATE_STATUS) == GL11.GL_FALSE) {
+            EffortlessBuilding.logger.log(Level.ERROR, getProgramLogInfo(program));
+            return 0;
+        }
+
+        return program;
+    }
+
+    private static int createShader(String filename, int shaderType){
+        int shader = 0;
+        try {
+            shader = GL20.glCreateShader(shaderType);
+
+            if(shader == 0)
+                return 0;
+
+            GL20.glShaderSource(shader, readFileAsString(filename));
+            GL20.glCompileShader(shader);
+
+            if (GL20.glGetShaderi(shader, GL20.GL_COMPILE_STATUS) == GL11.GL_FALSE)
+                throw new RuntimeException("Error creating shader: " + getShaderLogInfo(shader));
+
+            return shader;
+        }
+        catch(Exception e) {
+            GL20.glDeleteShader(shader);
+            e.printStackTrace();
+            return -1;
+        }
+    }
+
+    private static String getProgramLogInfo(int program) {
+        return GL20.glGetProgramInfoLog(program, GL20.glGetProgrami(program, GL20.GL_INFO_LOG_LENGTH));
+    }
+
+    private static String getShaderLogInfo(int shader) {
+        return GL20.glGetShaderInfoLog(shader, GL20.glGetShaderi(shader, GL20.GL_INFO_LOG_LENGTH));
+    }
+
+    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/assets/effortlessbuilding/lang/en_us.lang

@@ -1,11 +1,45 @@
 key.effortlessbuilding.category=Effortless Building
-key.effortlessbuilding.hud.desc=Open Settings
+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 (C&B compatible)
+key.effortlessbuilding.undo.desc=Undo
+key.effortlessbuilding.redo.desc=Redo
 
 item.effortlessbuilding:randomizer_bag.name=Randomizer Bag
 item.effortlessbuilding:reach_upgrade1.name=Reach Upgrade 1
 item.effortlessbuilding:reach_upgrade2.name=Reach Upgrade 2
 item.effortlessbuilding:reach_upgrade3.name=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.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.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
+
 commands.reach.usage=/reach <level>

src/main/resources/assets/effortlessbuilding/shaders/dissolve.frag

@@ -0,0 +1,106 @@
+#version 120
+
+uniform int time; // Passed in, see ShaderHelper.java
+
+uniform float dissolve; // Passed in via Callback
+uniform int highlight;
+uniform int red;
+uniform vec3 blockpos;
+uniform vec3 firstpos;
+uniform vec3 secondpos;
+uniform sampler2D image;
+uniform sampler2D mask;
+
+varying vec4 position;
+varying vec3 normal;
+
+void main() {
+
+    vec3 pixelposition = floor(position.xyz * 8.0) / 8.0;
+    vec3 worldpos = blockpos + pixelposition.xyz;
+    vec2 texcoord = vec2(gl_TexCoord[0]);
+    vec4 texcolor = texture2D(image, texcoord);
+    vec4 color = texcolor;
+    vec3 firstposc = firstpos + 0.51; //center in block
+    vec3 secondposc = secondpos + 0.5;
+
+    //find place in between first and second pos
+    float firstToSecond = length(secondposc - firstposc);
+    float place = 0.0;
+    if (firstToSecond > 0.5) {
+        float placeFromFirst = length(worldpos - firstposc) / firstToSecond;
+        float placeFromSecond = length(worldpos - secondposc) / firstToSecond;
+        place = (placeFromFirst + (1.0 - placeFromSecond)) / 2.0;
+    } else {
+        //only one block
+    }
+
+    //find 2d texture coordinate for noise texture based on world position
+    vec2 maskcoord = vec2(worldpos.y, worldpos.z);
+    if (abs(normal.y) > 0.5)
+        maskcoord = vec2(worldpos.x, worldpos.z);
+    if (abs(normal.z) > 0.5)
+        maskcoord = vec2(worldpos.x, worldpos.y);
+
+    maskcoord /= 20.0;
+    vec4 maskColor = texture2D(mask, maskcoord);
+    float maskgs = maskColor.r;
+
+    color.rgb *= gl_Color.rgb;
+
+    //desaturate
+    color.rgb *= vec3(0.8);
+
+    //add blueish hue
+    color.rgb += vec3(-0.1, 0.0, 0.2);
+
+    //add pulsing blue
+    float pulse = (sin(time / 5.0) + 1.0) / 2.0;
+    color.rgb += 0.4 * vec3(-0.5, 0.2, 0.6) * pulse;
+
+    //add diagonal highlights
+    float diagTime = mod(time / 40.0, 1.4) - 0.2;
+    float diag = smoothstep(diagTime - 0.2, diagTime, place) - smoothstep(diagTime, diagTime + 0.2, place);
+    color.rgb += 0.2 * diag * vec3(0.0, 0.2, 0.4);
+
+    float diagTime2 = mod(time / 70.0, 1.4) - 0.2;
+    float diag2 = smoothstep(diagTime2 - 0.2, diagTime2, place) - smoothstep(diagTime2, diagTime2 + 0.2, place);
+    color.rgb += 0.2 * diag2 * vec3(0.0, 0.4, 0.8);
+
+    //add edge shading
+//    vec3 p1;
+//    //if (firstpos.x < secondpos.x)
+//
+//    vec3 wmf = worldpos - firstposc;
+//    vec3 wms = worldpos - (secondposc + vec3(0.0, 1.0, 1.0));
+//    float distToEdge1 = min(length(wmf.xy), length(wmf.xz));
+//    float distToEdge2 = min(length(wmf.yz), length(wms.xy));
+//    float distToEdge3 = min(length(wms.xz), length(wms.yz));
+//    float distToEdge = min(min(distToEdge1, distToEdge2), distToEdge3);
+//    color.rgb += vec3(0.5 - smoothstep(0, 0.5, distToEdge)) * 0.5;
+
+    //add flat shading
+    if (abs(normal.x) > 0.5)
+        color.rgb -= 0.0;
+    if (abs(normal.y) > 0.5)
+        color.rgb += 0.05;
+    if (abs(normal.z) > 0.5)
+        color.rgb -= 0.05;
+
+
+    if (highlight == 1 && dissolve == 0.0) {
+        color.rgb += vec3(0.0, 0.1, -0.2);
+    }
+
+    if (red == 1) {
+        color.rgb += vec3(0.4, -0.3, -0.5);
+    }
+
+    color.r = max(0, min(1, color.r));
+    color.g = max(0, min(1, color.g));
+    color.b = max(0, min(1, color.b));
+
+    if (maskgs * 0.3 + place * 0.7 <= dissolve)
+    	gl_FragColor = vec4(texcolor.rgb, 0.0);
+    else gl_FragColor = color;
+}

src/main/resources/assets/effortlessbuilding/shaders/dissolve.vert

@@ -0,0 +1,14 @@
+#version 120
+
+varying vec4 position;
+varying vec3 normal;
+
+void main() {
+    gl_Position = ftransform();//gl_ProjectionMatrix * gl_ModelViewMatrix * gl_Vertex;
+    gl_TexCoord[0]  = gl_TextureMatrix[0] * gl_MultiTexCoord0;
+    gl_FrontColor = gl_Color;
+    //gl_BackColor = gl_Color;
+
+    position = gl_Vertex;
+    normal = gl_Normal;
+}

src/main/resources/assets/effortlessbuilding/shaders/raw_color.frag

@@ -0,0 +1,15 @@
+#version 120
+
+uniform sampler2D bgl_RenderedTexture;
+
+void main() {
+    vec2 texcoord = vec2(gl_TexCoord[0]);
+    vec4 color = texture2D(bgl_RenderedTexture, texcoord);
+
+    float r = color.b * gl_Color.r;
+    float g = color.g * gl_Color.g;
+    float b = color.r * gl_Color.b;
+    float a = color.a * gl_Color.a;
+
+    gl_FragColor = vec4(r, g, b, a);
+}