Fixed rare crash on ladders.

Added config file with reach, increased mining time and block outline settings.
Mirror size has been renamed to reach.
Mirror and array abide by the new reach settings.
Added reach counter to array UI (reach = count * max offset).
If reach is 0 (as can be set in config), the UI will be disabled.
Added the ability to show the white block outline on the block you place, in addition to blocks placed by mirror/array.
Added the ability to disable increased mining time and to change its percentage in the config.

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 = "0.1.1"
+version = "0.3.5"
 group = "nl.requios.effortlessbuilding" // http://maven.apache.org/guides/mini/guide-naming-conventions.html
 archivesBaseName = "effortlessbuilding"
 

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

@@ -1,21 +1,28 @@
 package nl.requios.effortlessbuilding;
 
+import net.minecraft.block.Block;
+import net.minecraft.block.state.IBlockState;
+import net.minecraft.entity.player.EntityPlayer;
+import net.minecraft.item.ItemStack;
+import net.minecraft.util.EnumFacing;
 import net.minecraft.util.EnumHand;
 import net.minecraft.util.math.BlockPos;
 import net.minecraft.util.math.Vec3i;
-import net.minecraftforge.common.util.BlockSnapshot;
+import net.minecraft.world.World;
+import net.minecraftforge.event.entity.player.PlayerEvent;
 import net.minecraftforge.event.world.BlockEvent;
+import net.minecraftforge.items.IItemHandler;
+import nl.requios.effortlessbuilding.helper.SurvivalHelper;
+import nl.requios.effortlessbuilding.item.ItemRandomizerBag;
 
 public class Array {
-    //TODO config file
-    public static final int MAX_COUNT = 100;
 
     public static class ArraySettings{
         public boolean enabled = false;
         public BlockPos offset = BlockPos.ORIGIN;
         public int count = 5;
 
-        public ArraySettings(){
+        public ArraySettings() {
         }
 
         public ArraySettings(boolean enabled, BlockPos offset, int count) {
@@ -23,38 +30,74 @@ public class Array {
             this.offset = offset;
             this.count = count;
         }
+
+        public int getReach() {
+            //find largest offset
+            int x = Math.abs(offset.getX());
+            int y = Math.abs(offset.getY());
+            int z = Math.abs(offset.getZ());
+            int largestOffset = Math.max(Math.max(x, y), z);
+
+            return largestOffset * count;
+        }
     }
 
     //Called from EventHandler
-    public static void onBlockPlaced(BlockEvent.PlaceEvent event) {
-        if (event.getWorld().isRemote) return;
+    public static boolean onBlockPlaced(BlockEvent.PlaceEvent event) {
+        if (event.getWorld().isRemote) return false;
 
         //find arraysettings for the player that placed the block
         ArraySettings a = BuildSettingsManager.getBuildSettings(event.getPlayer()).getArraySettings();
-        if (a == null || !a.enabled) return;
+        if (a == null || !a.enabled) return false;
 
-        if (a.offset.getX() == 0 && a.offset.getY() == 0 && a.offset.getZ() == 0) return;
+        if (a.offset.getX() == 0 && a.offset.getY() == 0 && a.offset.getZ() == 0) return false;
 
         BlockPos pos = event.getPos();
         Vec3i offset = new Vec3i(a.offset.getX(), a.offset.getY(), a.offset.getZ());
+
+        //Get itemstack
+        ItemStack itemStack = event.getPlayer().getHeldItem(event.getHand());
+
+        //Randomizer bag synergy
+        IItemHandler bagInventory = null;
+        if (!itemStack.isEmpty() && itemStack.getItem() instanceof ItemRandomizerBag) {
+            bagInventory = ItemRandomizerBag.getBagInventory(itemStack);
+        }
+
         for (int i = 0; i < a.count; i++) {
             pos = pos.add(offset);
             if (event.getWorld().isBlockLoaded(pos, true)) {
-                event.getWorld().setBlockState(pos, event.getPlacedBlock());
+                if (itemStack.isEmpty()) break;
 
-                //Mirror synergy
-                BlockSnapshot blockSnapshot = new BlockSnapshot(event.getWorld(), pos, event.getPlacedBlock());
-                BlockEvent.PlaceEvent placeEvent = new BlockEvent.PlaceEvent(blockSnapshot, event.getPlacedBlock(), event.getPlayer(), EnumHand.MAIN_HAND);
-                Mirror.onBlockPlaced(placeEvent);
+                IBlockState blockState = event.getPlacedBlock();
+
+                //Randomizer bag synergy
+                if (bagInventory != null) {
+                    itemStack = ItemRandomizerBag.pickRandomStack(bagInventory);
+                    if (itemStack.isEmpty()) continue;
+                    blockState = getBlockStateFromRandomizerBag(bagInventory, event.getWorld(), event.getPlayer(), event.getPos(), itemStack, event.getHand());
+                    if (blockState == null) continue;
+                }
+
+                //TODO check if can place (ItemBlock) and if can break replaced
+
+                SurvivalHelper.placeBlock(event.getWorld(), event.getPlayer(), pos, blockState, itemStack, EnumFacing.NORTH, true, false);
             }
         }
+
+        return true;
+    }
+
+    private static IBlockState getBlockStateFromRandomizerBag(IItemHandler bagInventory, World world, EntityPlayer player, BlockPos pos, ItemStack itemStack, EnumHand hand) {
+        //TODO get facing from getPlacedAgainst and getPlacedBlock
+        return Block.getBlockFromItem(itemStack.getItem()).getStateForPlacement(world, pos, EnumFacing.NORTH, 0, 0, 0, itemStack.getMetadata(), player, hand);
     }
 
     //Called from EventHandler
     public static void onBlockBroken(BlockEvent.BreakEvent event) {
         if (event.getWorld().isRemote) return;
 
-        //find arraysettings for the player that placed the block
+        //find arraysettings for the player that broke the block
         ArraySettings a = BuildSettingsManager.getBuildSettings(event.getPlayer()).getArraySettings();
         if (a == null || !a.enabled) return;
 
@@ -64,19 +107,27 @@ public class Array {
         Vec3i offset = new Vec3i(a.offset.getX(), a.offset.getY(), a.offset.getZ());
         for (int i = 0; i < a.count; i++) {
             pos = pos.add(offset);
-            if (event.getWorld().isBlockLoaded(pos, false)) {
-                event.getWorld().setBlockToAir(pos);
-
-                //Mirror synergy
-                BlockEvent.BreakEvent breakEvent = new BlockEvent.BreakEvent(event.getWorld(), pos, event.getState(), event.getPlayer());
-                Mirror.onBlockBroken(breakEvent);
-            }
+            SurvivalHelper.breakBlock(event.getWorld(), event.getPlayer(), pos);
         }
     }
 
-//    @SubscribeEvent
-//    @SideOnly(Side.CLIENT)
-//    public static void onRender(RenderWorldLastEvent event) {
-//
-//    }
+    //Called from EventHandler
+    public static float getTotalBlockHardness(World world, EntityPlayer player, BlockPos pos) {
+        float hardness = 0;
+
+        //find arraysettings for the player that broke the block
+        ArraySettings a = BuildSettingsManager.getBuildSettings(player).getArraySettings();
+        if (a == null || !a.enabled) return 0;
+
+        if (a.offset.getX() == 0 && a.offset.getY() == 0 && a.offset.getZ() == 0) return 0;
+
+        Vec3i offset = new Vec3i(a.offset.getX(), a.offset.getY(), a.offset.getZ());
+        for (int i = 0; i < a.count; i++) {
+            pos = pos.add(offset);
+            if (SurvivalHelper.canBreak(world, player, pos))
+                hardness += world.getBlockState(pos).getBlockHardness(world, pos);
+        }
+        return hardness;
+    }
+
 }

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

@@ -0,0 +1,54 @@
+package nl.requios.effortlessbuilding;
+
+import net.minecraftforge.common.config.Config;
+
+import static net.minecraftforge.common.config.Config.*;
+
+@Config(modid = EffortlessBuilding.MODID, name = "EffortlessBuilding", type = Type.INSTANCE, category = "")
+public class BuildConfig {
+
+    public static Reach reach = new Reach();
+    public static SurvivalBalancers survivalBalancers = new SurvivalBalancers();
+    public static Visuals visuals = new Visuals();
+
+    public static class Reach {
+        @Comment({"Reach: how far away the player can place blocks using mirror/array etc.",
+                 "Maximum reach in creative"})
+        public int maxReachCreative = 200;
+
+        @Comment({"Maximum reach in survival without upgrades",
+                 "Reach upgrades are craftable consumables that permanently increase reach.",
+                 "Set to 0 to disable Effortless Building until the player has consumed a reach upgrade."})
+        public int maxReachLevel0 = 10;
+
+        @Comment("Maximum reach in survival with one upgrade")
+        public int maxReachLevel1 = 20;
+
+        @Comment("Maximum reach in survival with two upgrades")
+        public int maxReachLevel2 = 50;
+
+        @Comment("Maximum reach in survival with three upgrades")
+        public int maxReachLevel3 = 200;
+    }
+
+    public static class SurvivalBalancers {
+
+        @Comment({"Increases the time to mine a block when breaking multiple at once.",
+                 "Mining time depends on how many blocks, what type of blocks, and the percentage below.",
+                 "Example: breaking 1 dirt + 1 obsidian takes the time of breaking 1 dirt + 1 obsidian."})
+        public boolean increasedMiningTime = true;
+
+        @Comment({"How much the mining time of each additional block counts towards an increased mining time.",
+                 "A percentage between 0% and 100%, where 0% is the same as disabling it,",
+                 "and 100% takes as much time as breaking each block individually.",
+                 "The block in front of you always counts as 100%."})
+        @RangeInt(min = 0, max = 100)
+        public int miningTimePercentage = 50;
+    }
+
+    public static class Visuals {
+        @Comment({"Shows a white block outline for the block you manually place,",
+                 "in addition to blocks placed by the mirror or array."})
+        public boolean showOutlineOnCurrentBlock = false;
+    }
+}

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

@@ -2,6 +2,7 @@ package nl.requios.effortlessbuilding;
 
 import net.minecraft.entity.player.EntityPlayer;
 import net.minecraft.entity.player.EntityPlayerMP;
+import net.minecraft.util.text.TextFormatting;
 import net.minecraftforge.fml.common.Mod;
 import net.minecraftforge.fml.common.eventhandler.SubscribeEvent;
 import net.minecraftforge.fml.common.gameevent.PlayerEvent;
@@ -11,18 +12,22 @@ import nl.requios.effortlessbuilding.network.BuildSettingsMessage;
 @Mod.EventBusSubscriber
 public class BuildSettingsManager {
 
+    //Retrieves the buildsettings of a player through the buildModifier capability
+    //Never returns null
     public static BuildSettings getBuildSettings(EntityPlayer player){
         if (player.hasCapability(BuildModifierCapability.buildModifier, null)) {
             BuildModifierCapability.IBuildModifier capability = player.getCapability(BuildModifierCapability.buildModifier, null);
+            if (capability.getBuildModifierData() == null) {
+                capability.setBuildModifierData(new BuildSettings());
+            }
             return capability.getBuildModifierData();
         }
-        EffortlessBuilding.log("buildsettings is null");
-        return null;
+        throw new IllegalArgumentException("Player does not have buildModifier capability");
     }
 
     public static void setBuildSettings(EntityPlayer player, BuildSettings buildSettings) {
         if (player == null) {
-            EffortlessBuilding.log("cannot set buildsettings, player is null");
+            EffortlessBuilding.log("Cannot set buildsettings, player is null");
             return;
         }
         if (player.hasCapability(BuildModifierCapability.buildModifier, null)) {
@@ -33,20 +38,74 @@ public class BuildSettingsManager {
         }
     }
 
+    public static String sanitize(BuildSettings buildSettings, EntityPlayer player) {
+        int maxReach = getMaxReach(player);
+        String error = "";
+
+        //Mirror settings
+        Mirror.MirrorSettings m = buildSettings.getMirrorSettings();
+        if (m.radius < 1) {
+            m.radius = 1;
+            error += "Mirror size is too small. Size has been reset to 1. ";
+        }
+        if (m.getReach() > maxReach) {
+            m.radius = maxReach / 2;
+            error += "Mirror exceeds your maximum reach. Reach has been reset to max. ";
+        }
+
+        //Array settings
+        Array.ArraySettings a = buildSettings.getArraySettings();
+        if (a.count < 0) {
+            a.count = 0;
+            error += "Array count cannot be negative. Count has been reset to 0. ";
+        }
+
+        if (a.getReach() > maxReach) {
+            a.count = 0;
+            error += "Array exceeds your maximum reach. Count has been reset to 0. ";
+        }
+
+        //Other
+        if (buildSettings.reachUpgrade < 0) {
+            buildSettings.reachUpgrade = 0;
+        }
+        if (buildSettings.reachUpgrade > 3) {
+            buildSettings.reachUpgrade = 3;
+        }
+
+        return error;
+    }
+
+    public static int getMaxReach(EntityPlayer player) {
+        if (player.isCreative()) return BuildConfig.reach.maxReachCreative;
+
+        //Check buildsettings for reachUpgrade
+        int reachUpgrade = getBuildSettings(player).getReachUpgrade();
+        switch (reachUpgrade) {
+            case 0: return BuildConfig.reach.maxReachLevel0;
+            case 1: return BuildConfig.reach.maxReachLevel1;
+            case 2: return BuildConfig.reach.maxReachLevel2;
+            case 3: return BuildConfig.reach.maxReachLevel3;
+        }
+        return BuildConfig.reach.maxReachLevel0;
+    }
+
     public static class BuildSettings {
         private Mirror.MirrorSettings mirrorSettings;
         private Array.ArraySettings arraySettings;
         private boolean quickReplace = false;
+        private int reachUpgrade = 0;
 
         public BuildSettings() {
             mirrorSettings = new Mirror.MirrorSettings();
             arraySettings = new Array.ArraySettings();
         }
 
-        public BuildSettings(Mirror.MirrorSettings mirrorSettings, Array.ArraySettings arraySettings, boolean quickReplace) {
+        public BuildSettings(Mirror.MirrorSettings mirrorSettings, Array.ArraySettings arraySettings, boolean quickReplace, int reachUpgrade) {
             this.mirrorSettings = mirrorSettings;
             this.arraySettings = arraySettings;
             this.quickReplace = quickReplace;
+            this.reachUpgrade = reachUpgrade;
         }
 
         public Mirror.MirrorSettings getMirrorSettings() {
@@ -72,6 +131,14 @@ public class BuildSettingsManager {
         public void setQuickReplace(boolean quickReplace) {
             this.quickReplace = quickReplace;
         }
+
+        public int getReachUpgrade() {
+            return reachUpgrade;
+        }
+
+        public void setReachUpgrade(int reachUpgrade) {
+            this.reachUpgrade = reachUpgrade;
+        }
     }
 
     @SubscribeEvent

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

@@ -5,6 +5,8 @@ import net.minecraft.entity.player.EntityPlayer;
 import net.minecraft.item.Item;
 import net.minecraft.util.text.TextComponentString;
 import net.minecraftforge.common.capabilities.CapabilityManager;
+import net.minecraftforge.common.config.Config;
+import net.minecraftforge.common.config.ConfigManager;
 import net.minecraftforge.fml.common.Mod;
 import net.minecraftforge.fml.common.Mod.EventHandler;
 import net.minecraftforge.fml.common.SidedProxy;
@@ -16,7 +18,7 @@ import net.minecraftforge.fml.common.network.NetworkRegistry;
 import net.minecraftforge.fml.common.network.simpleimpl.SimpleNetworkWrapper;
 import net.minecraftforge.fml.relauncher.Side;
 import nl.requios.effortlessbuilding.capability.*;
-import nl.requios.effortlessbuilding.inventory.RandomizerGuiHandler;
+import nl.requios.effortlessbuilding.gui.RandomizerBagGuiHandler;
 import nl.requios.effortlessbuilding.item.ItemRandomizerBag;
 import nl.requios.effortlessbuilding.network.BuildSettingsMessage;
 import nl.requios.effortlessbuilding.network.QuickReplaceMessage;
@@ -29,7 +31,7 @@ public class EffortlessBuilding
 {
     public static final String MODID = "effortlessbuilding";
     public static final String NAME = "Effortless Building";
-    public static final String VERSION = "0.1.2";
+    public static final String VERSION = "0.3.5";
 
     @Mod.Instance(EffortlessBuilding.MODID)
     public static EffortlessBuilding instance;
@@ -44,11 +46,13 @@ public class EffortlessBuilding
 
     public static final SimpleNetworkWrapper packetHandler = NetworkRegistry.INSTANCE.newSimpleChannel(EffortlessBuilding.MODID);
 
+    public static final ItemRandomizerBag ITEM_RANDOMIZER_BAG = new ItemRandomizerBag();
+
     public static final Block[] BLOCKS = {
     };
 
     public static final Item[] ITEMS = {
-            new ItemRandomizerBag()
+            ITEM_RANDOMIZER_BAG
     };
 
     public static final int RANDOMIZER_BAG_GUI = 0;
@@ -75,7 +79,8 @@ public class EffortlessBuilding
     // Register network handlers
     public void init(FMLInitializationEvent event)
     {
-        NetworkRegistry.INSTANCE.registerGuiHandler(EffortlessBuilding.instance, new RandomizerGuiHandler());
+        ConfigManager.sync(MODID, Config.Type.INSTANCE);
+        NetworkRegistry.INSTANCE.registerGuiHandler(EffortlessBuilding.instance, new RandomizerBagGuiHandler());
         proxy.init(event);
     }
 

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

@@ -1,21 +1,38 @@
 package nl.requios.effortlessbuilding;
 
 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.item.Item;
 import net.minecraft.item.ItemBlock;
+import net.minecraft.item.ItemStack;
+import net.minecraft.item.crafting.IRecipe;
+import net.minecraft.util.EnumFacing;
+import net.minecraft.util.EnumHand;
 import net.minecraft.util.ResourceLocation;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.world.World;
+import net.minecraftforge.common.ForgeHooks;
+import net.minecraftforge.common.config.Config;
+import net.minecraftforge.common.config.ConfigManager;
 import net.minecraftforge.event.AttachCapabilitiesEvent;
 import net.minecraftforge.event.RegistryEvent;
+import net.minecraftforge.event.entity.player.PlayerEvent;
+import net.minecraftforge.event.entity.player.PlayerInteractEvent;
 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 net.minecraftforge.fml.common.gameevent.TickEvent;
 import nl.requios.effortlessbuilding.capability.BuildModifierCapability;
 
 @Mod.EventBusSubscriber
 public class EventHandler
 {
+    private static boolean placedBlock = false;
+    private static BlockEvent.PlaceEvent placeEvent = null;
+
     @SubscribeEvent
     public static void registerBlocks(RegistryEvent.Register<Block> event)
     {
@@ -40,20 +57,69 @@ public class EventHandler
         }
     }
 
+    @SubscribeEvent
+    public void onConfigChangedEvent(ConfigChangedEvent.OnConfigChangedEvent event)
+    {
+        if (event.getModID().equals(EffortlessBuilding.MODID))
+        {
+            ConfigManager.sync(EffortlessBuilding.MODID, Config.Type.INSTANCE);
+        }
+    }
+
+    @SubscribeEvent
+    public static void onServerTick(TickEvent.ServerTickEvent event) {
+        if (placedBlock) {
+            placedBlock = false;
+
+            Mirror.onBlockPlaced(placeEvent);
+            Array.onBlockPlaced(placeEvent);
+        }
+    }
 
     @SubscribeEvent
     public static void onBlockPlaced(BlockEvent.PlaceEvent event) {
-        QuickReplace.onBlockPlaced(event);
-        if (event.isCanceled()) return;
-        Array.onBlockPlaced(event);
-        Mirror.onBlockPlaced(event);
-    }
+        if (QuickReplace.onBlockPlaced(event)) {
+            event.setCanceled(true);
+            return;
+        }
 
+        //Delay mirror and array by a tick so we can edit the held itemstack
+        //Otherwise the itemstack count would be overridden by ItemBlock#onItemUse
+        placedBlock = true;
+        placeEvent = event;
+    }
 
     @SubscribeEvent
     public static void onBlockBroken(BlockEvent.BreakEvent event) {
-        Array.onBlockBroken(event);
         Mirror.onBlockBroken(event);
+        Array.onBlockBroken(event);
     }
 
+    @SubscribeEvent
+    public static void breakSpeed(PlayerEvent.BreakSpeed event) {
+        //Disable if config says so
+        if (!BuildConfig.survivalBalancers.increasedMiningTime) return;
+
+        EntityPlayer player = event.getEntityPlayer();
+        World world = player.world;
+        BlockPos pos = event.getPos();
+
+        //EffortlessBuilding.log(player, String.valueOf(event.getNewSpeed()));
+
+        float originalBlockHardness = event.getState().getBlockHardness(world, pos);
+        float totalBlockHardness = 0;
+        totalBlockHardness += Mirror.getTotalBlockHardness(world, player, pos);
+        totalBlockHardness += Array.getTotalBlockHardness(world, player, pos);
+
+        //Grabbing percentage from config
+        float percentage = (float) BuildConfig.survivalBalancers.miningTimePercentage / 100;
+        totalBlockHardness *= percentage;
+        totalBlockHardness += originalBlockHardness;
+
+        float newSpeed = event.getOriginalSpeed() / totalBlockHardness * originalBlockHardness;
+        if (Float.isNaN(newSpeed) || newSpeed == 0f) newSpeed = 1f;
+        event.setNewSpeed(newSpeed);
+
+        //EffortlessBuilding.log(player, String.valueOf(event.getNewSpeed()));
+    }
 }

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

@@ -1,41 +1,23 @@
 package nl.requios.effortlessbuilding;
 
-import net.minecraft.block.BlockDirectional;
-import net.minecraft.block.BlockDispenser;
-import net.minecraft.block.BlockStairs;
+import net.minecraft.block.*;
 import net.minecraft.block.state.IBlockState;
-import net.minecraft.client.Minecraft;
-import net.minecraft.client.entity.EntityPlayerSP;
-import net.minecraft.client.renderer.BufferBuilder;
-import net.minecraft.client.renderer.Tessellator;
-import net.minecraft.client.renderer.vertex.DefaultVertexFormats;
+import net.minecraft.entity.player.EntityPlayer;
+import net.minecraft.item.ItemStack;
 import net.minecraft.util.EnumFacing;
+import net.minecraft.util.EnumHand;
 import net.minecraft.util.math.BlockPos;
 import net.minecraft.util.math.Vec3d;
+import net.minecraft.util.math.Vec3i;
 import net.minecraft.world.World;
-import net.minecraftforge.client.event.RenderWorldLastEvent;
+import net.minecraftforge.common.util.BlockSnapshot;
 import net.minecraftforge.event.world.BlockEvent;
-import net.minecraftforge.fml.common.Mod;
-import net.minecraftforge.fml.common.eventhandler.SubscribeEvent;
-import net.minecraftforge.fml.relauncher.Side;
-import net.minecraftforge.fml.relauncher.SideOnly;
-import org.lwjgl.opengl.GL11;
-import org.lwjgl.util.Color;
+import net.minecraftforge.items.IItemHandler;
+import nl.requios.effortlessbuilding.helper.SurvivalHelper;
+import nl.requios.effortlessbuilding.item.ItemRandomizerBag;
 
-@Mod.EventBusSubscriber
 public class Mirror {
 
-    //TODO config file
-    public static final int MAX_RADIUS = 200;
-
-    private static final Color colorX = new Color(255, 72, 52);
-    private static final Color colorY = new Color(67, 204, 51);
-    private static final Color colorZ = new Color(52, 247, 255);
-    private static final int lineAlpha = 200;
-    private static final int planeAlpha = 75;
-    private static final Vec3d epsilon = new Vec3d(0.001, 0.001, 0.001); //prevents z-fighting
-
-
     public static class MirrorSettings {
         public boolean enabled = false;
         public Vec3d position = new Vec3d(0.5, 64.5, 0.5);
@@ -56,81 +38,137 @@ public class Mirror {
             this.drawLines = drawLines;
             this.drawPlanes = drawPlanes;
         }
+
+        public int getReach() {
+            return radius * 2;
+        }
     }
 
     //Called from EventHandler
-    public static void onBlockPlaced(BlockEvent.PlaceEvent event) {
-        if (event.getWorld().isRemote) return;
+    public static boolean onBlockPlaced(BlockEvent.PlaceEvent event) {
+        if (event.getWorld().isRemote) return false;
 
         //find mirrorsettings for the player that placed the block
         MirrorSettings m = BuildSettingsManager.getBuildSettings(event.getPlayer()).getMirrorSettings();
-        if (m == null) return;
+        if (m == null) return false;
 
-        if (!m.enabled || (!m.mirrorX && !m.mirrorY && !m.mirrorZ)) return;
+        if (!m.enabled || (!m.mirrorX && !m.mirrorY && !m.mirrorZ)) return false;
 
         //if within mirror distance, mirror
         BlockPos oldBlockPos = event.getPos();
 
         if (oldBlockPos.getX() + 0.5 < m.position.x - m.radius || oldBlockPos.getX() + 0.5 > m.position.x + m.radius ||
                 oldBlockPos.getY() + 0.5 < m.position.y - m.radius || oldBlockPos.getY() + 0.5 > m.position.y + m.radius ||
-                oldBlockPos.getZ() + 0.5 < m.position.z - m.radius || oldBlockPos.getZ() + 0.5 > m.position.z+ m.radius)
-            return;
+                oldBlockPos.getZ() + 0.5 < m.position.z - m.radius || oldBlockPos.getZ() + 0.5 > m.position.z + m.radius)
+            return false;
+
+        //Get itemstack
+        ItemStack itemStack = event.getPlayer().getHeldItem(event.getHand());
+
+        //Randomizer bag synergy
+        IItemHandler bagInventory = null;
+        if (!itemStack.isEmpty() && itemStack.getItem() instanceof ItemRandomizerBag) {
+            bagInventory = ItemRandomizerBag.getBagInventory(itemStack);
+        }
 
         if (m.mirrorX) {
-            placeMirrorX(event.getWorld(), m, oldBlockPos, event.getPlacedBlock());
+            placeMirrorX(event.getWorld(), event.getPlayer(), m, event.getPos(), event.getPlacedBlock(), bagInventory, itemStack, event.getHand());
         }
 
         if (m.mirrorY) {
-            placeMirrorY(event.getWorld(), m, oldBlockPos, event.getPlacedBlock());
+            placeMirrorY(event.getWorld(), event.getPlayer(), m, oldBlockPos, event.getPlacedBlock(), bagInventory, itemStack, event.getHand());
         }
 
         if (m.mirrorZ) {
-            placeMirrorZ(event.getWorld(), m, oldBlockPos, event.getPlacedBlock());
+            placeMirrorZ(event.getWorld(), event.getPlayer(), m, oldBlockPos, event.getPlacedBlock(), bagInventory, itemStack, event.getHand());
         }
+
+        return true;
     }
 
-    private static void placeMirrorX(World world, MirrorSettings m, BlockPos oldBlockPos, IBlockState oldBlockState) {
+    private static void placeMirrorX(World world, EntityPlayer player, MirrorSettings m, BlockPos oldBlockPos, IBlockState oldBlockState,
+                                     IItemHandler bagInventory, ItemStack itemStack, EnumHand hand) {
         //find mirror position
         double x = m.position.x + (m.position.x - oldBlockPos.getX() - 0.5);
         BlockPos newBlockPos = new BlockPos(x, oldBlockPos.getY(), oldBlockPos.getZ());
-        IBlockState newBlockState = oldBlockState;
+
+        //Randomizer bag synergy
+        if (bagInventory != null) {
+            itemStack = ItemRandomizerBag.pickRandomStack(bagInventory);
+            if (itemStack.isEmpty()) return;
+            oldBlockState = getBlockStateFromRandomizerBag(bagInventory, world, player, oldBlockPos, itemStack, hand);
+            if (oldBlockState == null) return;
+        }
+
+        IBlockState newBlockState = oldBlockState.withMirror(net.minecraft.util.Mirror.FRONT_BACK);
         //place block
         if (world.isBlockLoaded(newBlockPos, true)) {
-            newBlockState = oldBlockState.withMirror(net.minecraft.util.Mirror.FRONT_BACK);
-
-            world.setBlockState(newBlockPos, newBlockState);
+            placeBlock(world, player, newBlockPos, newBlockState, itemStack, hand);
         }
-        if (m.mirrorY) placeMirrorY(world, m, newBlockPos, newBlockState);
-        if (m.mirrorZ) placeMirrorZ(world, m, newBlockPos, newBlockState);
+        if (m.mirrorY) placeMirrorY(world, player, m, newBlockPos, newBlockState, bagInventory, itemStack, hand);
+        if (m.mirrorZ) placeMirrorZ(world, player, m, newBlockPos, newBlockState, bagInventory, itemStack, hand);
     }
 
-    private static void placeMirrorY(World world, MirrorSettings m, BlockPos oldBlockPos, IBlockState oldBlockState) {
+    private static void placeMirrorY(World world, EntityPlayer player, MirrorSettings m, BlockPos oldBlockPos, IBlockState oldBlockState,
+                                     IItemHandler bagInventory, ItemStack itemStack, EnumHand hand) {
         //find mirror position
         double y = m.position.y + (m.position.y - oldBlockPos.getY() - 0.5);
         BlockPos newBlockPos = new BlockPos(oldBlockPos.getX(), y, oldBlockPos.getZ());
-        IBlockState newBlockState = oldBlockState;
+
+        //Randomizer bag synergy
+        if (bagInventory != null) {
+            itemStack = ItemRandomizerBag.pickRandomStack(bagInventory);
+            if (itemStack.isEmpty()) return;
+            oldBlockState = getBlockStateFromRandomizerBag(bagInventory, world, player, oldBlockPos, itemStack, hand);
+            if (oldBlockState == null) return;
+        }
+
+        IBlockState newBlockState = getVerticalMirror(oldBlockState);
         //place block
         if (world.isBlockLoaded(newBlockPos, true)) {
-            newBlockState = getVerticalMirror(oldBlockState);
-
-            world.setBlockState(newBlockPos, newBlockState);
+            placeBlock(world, player, newBlockPos, newBlockState, itemStack, hand);
         }
-        if (m.mirrorZ) placeMirrorZ(world, m, newBlockPos, newBlockState);
+        if (m.mirrorZ) placeMirrorZ(world, player, m, newBlockPos, newBlockState, bagInventory, itemStack, hand);
     }
 
-    private static void placeMirrorZ(World world, MirrorSettings m, BlockPos oldBlockPos, IBlockState oldBlockState) {
+    private static void placeMirrorZ(World world, EntityPlayer player, MirrorSettings m, BlockPos oldBlockPos, IBlockState oldBlockState,
+                                     IItemHandler bagInventory, ItemStack itemStack, EnumHand hand) {
         //find mirror position
         double z = m.position.z + (m.position.z - oldBlockPos.getZ() - 0.5);
         BlockPos newBlockPos = new BlockPos(oldBlockPos.getX(), oldBlockPos.getY(), z);
-        IBlockState newBlockState = oldBlockState;
+
+        //Randomizer bag synergy
+        if (bagInventory != null) {
+            itemStack = ItemRandomizerBag.pickRandomStack(bagInventory);
+            if (itemStack.isEmpty()) return;
+            oldBlockState = getBlockStateFromRandomizerBag(bagInventory, world, player, oldBlockPos, itemStack, hand);
+            if (oldBlockState == null) return;
+        }
+
+        IBlockState newBlockState = oldBlockState.withMirror(net.minecraft.util.Mirror.LEFT_RIGHT);
         //place block
         if (world.isBlockLoaded(newBlockPos, true)) {
-            newBlockState = oldBlockState.withMirror(net.minecraft.util.Mirror.LEFT_RIGHT);
-
-            world.setBlockState(newBlockPos, newBlockState);
+            placeBlock(world, player, newBlockPos, newBlockState, itemStack, hand);
         }
     }
 
+    private static IBlockState getBlockStateFromRandomizerBag(IItemHandler bagInventory, World world, EntityPlayer player, BlockPos pos, ItemStack itemStack, EnumHand hand) {
+        //TODO get facing from getPlacedAgainst and getPlacedBlock
+        return Block.getBlockFromItem(itemStack.getItem()).getStateForPlacement(world, pos, EnumFacing.NORTH, 0, 0, 0, itemStack.getMetadata(), player, hand);
+    }
+
+    private static void placeBlock(World world, EntityPlayer player, BlockPos newBlockPos, IBlockState newBlockState, ItemStack itemStack, EnumHand hand) {
+        //TODO check if can place
+        //TODO check if can break
+
+        SurvivalHelper.placeBlock(world, player, newBlockPos, newBlockState, itemStack, EnumFacing.NORTH, true, false);
+
+        //Array synergy
+        BlockSnapshot blockSnapshot = new BlockSnapshot(world, newBlockPos, newBlockState);
+        BlockEvent.PlaceEvent placeEvent = new BlockEvent.PlaceEvent(blockSnapshot, newBlockState, player, hand);
+        Array.onBlockPlaced(placeEvent);
+    }
+
     private static IBlockState getVerticalMirror(IBlockState blockState) {
         //Stairs
         if (blockState.getBlock() instanceof BlockStairs) {
@@ -141,6 +179,16 @@ public class Mirror {
             }
         }
 
+        //Slabs
+        if (blockState.getBlock() instanceof BlockSlab) {
+            if (((BlockSlab) blockState.getBlock()).isDouble()) return blockState;
+            if (blockState.getValue(BlockSlab.HALF) == BlockSlab.EnumBlockHalf.BOTTOM) {
+                return blockState.withProperty(BlockSlab.HALF, BlockSlab.EnumBlockHalf.TOP);
+            } else {
+                return blockState.withProperty(BlockSlab.HALF, BlockSlab.EnumBlockHalf.BOTTOM);
+            }
+        }
+
         //Buttons, endrod, observer, piston
         if (blockState.getBlock() instanceof BlockDirectional) {
             if (blockState.getValue(BlockDirectional.FACING) == EnumFacing.DOWN) {
@@ -177,7 +225,7 @@ public class Mirror {
 
         if (oldBlockPos.getX() + 0.5 < m.position.x - m.radius || oldBlockPos.getX() + 0.5 > m.position.x + m.radius ||
                 oldBlockPos.getY() + 0.5 < m.position.y - m.radius || oldBlockPos.getY() + 0.5 > m.position.y + m.radius ||
-                oldBlockPos.getZ() + 0.5 < m.position.z - m.radius || oldBlockPos.getZ() + 0.5 > m.position.z+ m.radius)
+                oldBlockPos.getZ() + 0.5 < m.position.z - m.radius || oldBlockPos.getZ() + 0.5 > m.position.z + m.radius)
             return;
 
         if (m.mirrorX) {
@@ -198,9 +246,7 @@ public class Mirror {
         double x = m.position.x + (m.position.x - oldBlockPos.getX() - 0.5);
         BlockPos newBlockPos = new BlockPos(x, oldBlockPos.getY(), oldBlockPos.getZ());
         //break block
-        if (event.getWorld().isBlockLoaded(newBlockPos, true)) {
-            event.getWorld().setBlockToAir(newBlockPos);
-        }
+        breakBlock(event, newBlockPos);
         if (m.mirrorY) breakMirrorY(event, m, newBlockPos);
         if (m.mirrorZ) breakMirrorZ(event, m, newBlockPos);
     }
@@ -209,10 +255,8 @@ public class Mirror {
         //find mirror position
         double y = m.position.y + (m.position.y - oldBlockPos.getY() - 0.5);
         BlockPos newBlockPos = new BlockPos(oldBlockPos.getX(), y, oldBlockPos.getZ());
-        //place block
-        if (event.getWorld().isBlockLoaded(newBlockPos, true)) {
-            event.getWorld().setBlockToAir(newBlockPos);
-        }
+        //break block
+        breakBlock(event, newBlockPos);
         if (m.mirrorZ) breakMirrorZ(event, m, newBlockPos);
     }
 
@@ -220,182 +264,92 @@ public class Mirror {
         //find mirror position
         double z = m.position.z + (m.position.z - oldBlockPos.getZ() - 0.5);
         BlockPos newBlockPos = new BlockPos(oldBlockPos.getX(), oldBlockPos.getY(), z);
-        //place block
-        if (event.getWorld().isBlockLoaded(newBlockPos, true)) {
-            event.getWorld().setBlockToAir(newBlockPos);
-        }
+        //break block
+        breakBlock(event, newBlockPos);
     }
 
-    @SubscribeEvent
-    @SideOnly(Side.CLIENT)
-    public static void onRender(RenderWorldLastEvent event) {
-        EntityPlayerSP player = Minecraft.getMinecraft().player;
-        BuildSettingsManager.BuildSettings buildSettings = BuildSettingsManager.getBuildSettings(player);
-        if (buildSettings == null) return;
-        MirrorSettings m = buildSettings.getMirrorSettings();
+    private static void breakBlock(BlockEvent.BreakEvent event, BlockPos newBlockPos) {
+        if (!event.getWorld().isBlockLoaded(newBlockPos, false)) return;
 
-        if (m == null || !m.enabled || (!m.mirrorX && !m.mirrorY && !m.mirrorZ)) return;
+        SurvivalHelper.breakBlock(event.getWorld(), event.getPlayer(), newBlockPos);
 
-        Vec3d playerPos = new Vec3d(player.posX, player.posY, player.posZ);
-        Vec3d pos = m.position.add(epsilon);
-        int radius = m.radius;
+        //Array synergy
+        BlockEvent.BreakEvent breakEvent = new BlockEvent.BreakEvent(event.getWorld(), newBlockPos, event.getWorld().getBlockState(newBlockPos), event.getPlayer());
+        Array.onBlockBroken(breakEvent);
+    }
+
+
+    //Called from EventHandler
+    public static float getTotalBlockHardness(World world, EntityPlayer player, BlockPos oldBlockPos) {
+        float hardness = 0;
+
+        //find mirrorsettings for the player that broke the block
+        MirrorSettings m = BuildSettingsManager.getBuildSettings(player).getMirrorSettings();
+        if (m == null) return 0;
+
+        if (!m.enabled || (!m.mirrorX && !m.mirrorY && !m.mirrorZ)) return 0;
+
+        //if within mirror distance, break mirror block
+        if (oldBlockPos.getX() + 0.5 < m.position.x - m.radius || oldBlockPos.getX() + 0.5 > m.position.x + m.radius ||
+                oldBlockPos.getY() + 0.5 < m.position.y - m.radius || oldBlockPos.getY() + 0.5 > m.position.y + m.radius ||
+                oldBlockPos.getZ() + 0.5 < m.position.z - m.radius || oldBlockPos.getZ() + 0.5 > m.position.z + m.radius)
+            return 0;
 
         if (m.mirrorX) {
-            Vec3d posA = new Vec3d(pos.x, pos.y - radius, pos.z - radius);
-            Vec3d posB = new Vec3d(pos.x, pos.y + radius, pos.z + radius);
-
-            drawMirrorPlane(playerPos, posA, posB, colorX, m.drawLines, m.drawPlanes);
+            hardness += getHardnessX(world, player, m, oldBlockPos);
         }
+
         if (m.mirrorY) {
-            Vec3d posA = new Vec3d(pos.x - radius, pos.y, pos.z - radius);
-            Vec3d posB = new Vec3d(pos.x + radius, pos.y, pos.z + radius);
-
-            drawMirrorPlaneY(playerPos, posA, posB, colorY, m.drawLines, m.drawPlanes);
+            hardness += getHardnessY(world, player, m, oldBlockPos);
         }
+
         if (m.mirrorZ) {
-            Vec3d posA = new Vec3d(pos.x - radius, pos.y - radius, pos.z);
-            Vec3d posB = new Vec3d(pos.x + radius, pos.y + radius, pos.z);
-
-            drawMirrorPlane(playerPos, posA, posB, colorZ, m.drawLines, m.drawPlanes);
-        }
-
-        //Draw axis coordinated colors if two or more axes are enabled
-        //(If only one is enabled the lines are that planes color)
-        if (m.drawLines && ((m.mirrorX && m.mirrorY) || (m.mirrorX && m.mirrorZ) || (m.mirrorY && m.mirrorZ))) {
-            drawMirrorLines(playerPos, m);
+            hardness += getHardnessZ(world, player, m, oldBlockPos);
         }
+        return hardness;
     }
 
-    @SideOnly(Side.CLIENT)
-    public static void drawMirrorPlane(Vec3d playerPos, Vec3d posA, Vec3d posB, Color c, boolean drawLines, boolean drawPlanes) {
+    private static float getHardnessX(World world, EntityPlayer player, MirrorSettings m, BlockPos oldBlockPos) {
+        float hardness = 0;
 
-        GL11.glPushAttrib(GL11.GL_ENABLE_BIT);
-        GL11.glPushMatrix();
-        GL11.glDisable(GL11.GL_CULL_FACE);
-        GL11.glDisable(GL11.GL_LIGHTING);
-        GL11.glDisable(GL11.GL_TEXTURE_2D);
+        //find mirror position
+        double x = m.position.x + (m.position.x - oldBlockPos.getX() - 0.5);
+        BlockPos newBlockPos = new BlockPos(x, oldBlockPos.getY(), oldBlockPos.getZ());
 
-        GL11.glEnable(GL11.GL_BLEND);
-        GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);
-        GL11.glTranslated(-playerPos.x, -playerPos.y, -playerPos.z);
+        if (SurvivalHelper.canBreak(world, player, newBlockPos))
+            hardness += world.getBlockState(newBlockPos).getBlockHardness(world, newBlockPos);
 
-        GL11.glColor4d(c.getRed(), c.getGreen(), c.getBlue(), planeAlpha);
-        GL11.glLineWidth(2);
-        GL11.glDepthMask(false);
-        Tessellator tessellator = Tessellator.getInstance();
-        BufferBuilder bufferBuilder = tessellator.getBuffer();
+        if (m.mirrorY) hardness += getHardnessY(world, player, m, newBlockPos);
+        if (m.mirrorZ) hardness += getHardnessZ(world, player, m, newBlockPos);
 
-        if (drawPlanes) {
-            bufferBuilder.begin(GL11.GL_TRIANGLE_STRIP, DefaultVertexFormats.POSITION_COLOR);
-
-            bufferBuilder.pos(posA.x, posA.y, posA.z).color(c.getRed(), c.getGreen(), c.getBlue(), planeAlpha).endVertex();
-            bufferBuilder.pos(posA.x, posB.y, posA.z).color(c.getRed(), c.getGreen(), c.getBlue(), planeAlpha).endVertex();
-            bufferBuilder.pos(posB.x, posA.y, posB.z).color(c.getRed(), c.getGreen(), c.getBlue(), planeAlpha).endVertex();
-            bufferBuilder.pos(posB.x, posB.y, posB.z).color(c.getRed(), c.getGreen(), c.getBlue(), planeAlpha).endVertex();
-
-            tessellator.draw();
-        }
-
-        if (drawLines) {
-            Vec3d middle = posA.add(posB).scale(0.5);
-            bufferBuilder.begin(GL11.GL_LINES, DefaultVertexFormats.POSITION_COLOR);
-
-            bufferBuilder.pos(posA.x, middle.y, posA.z).color(c.getRed(), c.getGreen(), c.getBlue(), lineAlpha).endVertex();
-            bufferBuilder.pos(posB.x, middle.y, posB.z).color(c.getRed(), c.getGreen(), c.getBlue(), lineAlpha).endVertex();
-            bufferBuilder.pos(middle.x, posA.y, middle.z).color(c.getRed(), c.getGreen(), c.getBlue(), lineAlpha).endVertex();
-            bufferBuilder.pos(middle.x, posB.y, middle.z).color(c.getRed(), c.getGreen(), c.getBlue(), lineAlpha).endVertex();
-
-            tessellator.draw();
-        }
-
-        GL11.glDepthMask(true);
-        GL11.glPopMatrix();
-        GL11.glPopAttrib();
+        return hardness;
     }
 
-    @SideOnly(Side.CLIENT)
-    public static void drawMirrorPlaneY(Vec3d playerPos, Vec3d posA, Vec3d posB, Color c, boolean drawLines, boolean drawPlanes) {
+    private static float getHardnessY(World world, EntityPlayer player, MirrorSettings m, BlockPos oldBlockPos) {
+        float hardness = 0;
 
-        GL11.glPushAttrib(GL11.GL_ENABLE_BIT);
-        GL11.glPushMatrix();
-        GL11.glDisable(GL11.GL_CULL_FACE);
-        GL11.glDisable(GL11.GL_LIGHTING);
-        GL11.glDisable(GL11.GL_TEXTURE_2D);
+        //find mirror position
+        double y = m.position.y + (m.position.y - oldBlockPos.getY() - 0.5);
+        BlockPos newBlockPos = new BlockPos(oldBlockPos.getX(), y, oldBlockPos.getZ());
 
-        GL11.glEnable(GL11.GL_BLEND);
-        GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);
-        GL11.glTranslated(-playerPos.x, -playerPos.y, -playerPos.z);
+        if (SurvivalHelper.canBreak(world, player, newBlockPos))
+            hardness += world.getBlockState(newBlockPos).getBlockHardness(world, newBlockPos);
 
-        GL11.glColor4d(c.getRed(), c.getGreen(), c.getBlue(), c.getAlpha());
-        GL11.glLineWidth(2);
-        GL11.glDepthMask(false);
-        Tessellator tessellator = Tessellator.getInstance();
-        BufferBuilder bufferBuilder = tessellator.getBuffer();
+        if (m.mirrorZ) hardness += getHardnessZ(world, player, m, newBlockPos);
 
-        if (drawPlanes) {
-            bufferBuilder.begin(GL11.GL_TRIANGLE_STRIP, DefaultVertexFormats.POSITION_COLOR);
-
-            bufferBuilder.pos(posA.x, posA.y, posA.z).color(c.getRed(), c.getGreen(), c.getBlue(), planeAlpha).endVertex();
-            bufferBuilder.pos(posA.x, posA.y, posB.z).color(c.getRed(), c.getGreen(), c.getBlue(), planeAlpha).endVertex();
-            bufferBuilder.pos(posB.x, posA.y, posA.z).color(c.getRed(), c.getGreen(), c.getBlue(), planeAlpha).endVertex();
-            bufferBuilder.pos(posB.x, posA.y, posB.z).color(c.getRed(), c.getGreen(), c.getBlue(), planeAlpha).endVertex();
-
-            tessellator.draw();
-        }
-
-        if (drawLines) {
-            Vec3d middle = posA.add(posB).scale(0.5);
-            bufferBuilder.begin(GL11.GL_LINES, DefaultVertexFormats.POSITION_COLOR);
-
-            bufferBuilder.pos(middle.x, middle.y, posA.z).color(c.getRed(), c.getGreen(), c.getBlue(), lineAlpha).endVertex();
-            bufferBuilder.pos(middle.x, middle.y, posB.z).color(c.getRed(), c.getGreen(), c.getBlue(), lineAlpha).endVertex();
-            bufferBuilder.pos(posA.x, middle.y, middle.z).color(c.getRed(), c.getGreen(), c.getBlue(), lineAlpha).endVertex();
-            bufferBuilder.pos(posB.x, middle.y, middle.z).color(c.getRed(), c.getGreen(), c.getBlue(), lineAlpha).endVertex();
-
-            tessellator.draw();
-        }
-
-        GL11.glDepthMask(true);
-        GL11.glPopMatrix();
-        GL11.glPopAttrib();
+        return hardness;
     }
 
-    @SideOnly(Side.CLIENT)
-    public static void drawMirrorLines(Vec3d playerPos, MirrorSettings m) {
+    private static float getHardnessZ(World world, EntityPlayer player, MirrorSettings m, BlockPos oldBlockPos) {
+        float hardness = 0;
 
-        Vec3d pos = m.position.add(epsilon);
+        //find mirror position
+        double z = m.position.z + (m.position.z - oldBlockPos.getZ() - 0.5);
+        BlockPos newBlockPos = new BlockPos(oldBlockPos.getX(), oldBlockPos.getY(), z);
 
-        GL11.glPushAttrib(GL11.GL_ENABLE_BIT);
-        GL11.glPushMatrix();
-        GL11.glDisable(GL11.GL_CULL_FACE);
-        GL11.glDisable(GL11.GL_LIGHTING);
-        GL11.glDisable(GL11.GL_TEXTURE_2D);
+        if (SurvivalHelper.canBreak(world, player, newBlockPos))
+            hardness += world.getBlockState(newBlockPos).getBlockHardness(world, newBlockPos);
 
-        GL11.glEnable(GL11.GL_BLEND);
-        GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);
-        GL11.glTranslated(-playerPos.x, -playerPos.y, -playerPos.z);
-
-        GL11.glColor4d(100, 100, 100, 255);
-        GL11.glLineWidth(2);
-        GL11.glDepthMask(false);
-        Tessellator tessellator = Tessellator.getInstance();
-        BufferBuilder bufferBuilder = tessellator.getBuffer();
-
-        bufferBuilder.begin(GL11.GL_LINES, DefaultVertexFormats.POSITION_COLOR);
-
-        bufferBuilder.pos(pos.x - m.radius, pos.y, pos.z).color(colorZ.getRed(), colorZ.getGreen(), colorZ.getBlue(), lineAlpha).endVertex();
-        bufferBuilder.pos(pos.x + m.radius, pos.y, pos.z).color(colorZ.getRed(), colorZ.getGreen(), colorZ.getBlue(), lineAlpha).endVertex();
-        bufferBuilder.pos(pos.x, pos.y - m.radius, pos.z).color(colorY.getRed(), colorY.getGreen(), colorY.getBlue(), lineAlpha).endVertex();
-        bufferBuilder.pos(pos.x, pos.y + m.radius, pos.z).color(colorY.getRed(), colorY.getGreen(), colorY.getBlue(), lineAlpha).endVertex();
-        bufferBuilder.pos(pos.x, pos.y, pos.z - m.radius).color(colorX.getRed(), colorX.getGreen(), colorX.getBlue(), lineAlpha).endVertex();
-        bufferBuilder.pos(pos.x, pos.y, pos.z + m.radius).color(colorX.getRed(), colorX.getGreen(), colorX.getBlue(), lineAlpha).endVertex();
-
-        tessellator.draw();
-
-        GL11.glDepthMask(true);
-        GL11.glPopMatrix();
-        GL11.glPopAttrib();
+        return hardness;
     }
-
-
 }

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

@@ -3,10 +3,12 @@ package nl.requios.effortlessbuilding;
 import net.minecraft.block.state.IBlockState;
 import net.minecraft.entity.player.EntityPlayer;
 import net.minecraft.entity.player.EntityPlayerMP;
+import net.minecraft.item.ItemStack;
 import net.minecraft.util.EnumHand;
 import net.minecraft.util.math.BlockPos;
 import net.minecraftforge.common.util.BlockSnapshot;
 import net.minecraftforge.event.world.BlockEvent;
+import nl.requios.effortlessbuilding.helper.SurvivalHelper;
 import nl.requios.effortlessbuilding.network.QuickReplaceMessage;
 
 import java.util.Dictionary;
@@ -17,45 +19,56 @@ public class QuickReplace {
     //Dilemma in getting blockstate from event to when message is received:
     // 1) send via client. Then hacking makes it possible to place any block.
     // 2) save serverside. Messages may not be received chronologically so data could get switched.
-    //Solution for now: save blockstate per player. Messages from 1 player will rarely come unchronologically
+    //Solution for now: save data serverside and per player. Messages from 1 player will rarely come unchronologically
     //and players will rarely switch between blocks that quickly.
 
     private static Dictionary<UUID, IBlockState> blockStates = new Hashtable<>();
+    private static Dictionary<UUID, ItemStack> itemStacks = new Hashtable<>();
+    private static Dictionary<UUID, EnumHand> hands = new Hashtable<>();
 
-    public static void onBlockPlaced(BlockEvent.PlaceEvent event) {
-        if (event.getWorld().isRemote) return;
+    public static boolean onBlockPlaced(BlockEvent.PlaceEvent event) {
+        if (event.getWorld().isRemote) return true;
         //Only serverside
 
         BuildSettingsManager.BuildSettings buildSettings = BuildSettingsManager.getBuildSettings(event.getPlayer());
-        if (!buildSettings.doQuickReplace()) return;
+        if (!buildSettings.doQuickReplace()) return false;
 
         //TODO base on player facing instead, no more messages (or break block clientside)
 
         blockStates.put(event.getPlayer().getUniqueID(), event.getPlacedBlock());
+        itemStacks.put(event.getPlayer().getUniqueID(), event.getPlayer().getHeldItem(event.getHand()));
+        hands.put(event.getPlayer().getUniqueID(), event.getHand());
 
         //RayTraceResult result = event.getWorld().rayTraceBlocks(event.getPlayer().getPositionEyes(1f), event.getPlayer().getLookVec());
         EffortlessBuilding.packetHandler.sendTo(new QuickReplaceMessage(), (EntityPlayerMP) event.getPlayer());
 
-        event.setCanceled(true);
+        return true;
     }
 
     public static void onMessageReceived(EntityPlayer player, QuickReplaceMessage message) {
         BuildSettingsManager.BuildSettings buildSettings = BuildSettingsManager.getBuildSettings(player);
         if (!buildSettings.doQuickReplace()) return;
 
-        //TODO check for bedrock, end portal etc in survival
-
         if (!message.isBlockHit() || message.getBlockPos() == null) return;
 
         BlockPos placedAgainstBlockPos = message.getBlockPos();
-        //placedAgainstBlockPos = placedAgainstBlockPos.down();
+
+        //Get under tall grass and other replaceable blocks
+        if (player.world.getBlockState(placedAgainstBlockPos).getBlock().isReplaceable(player.world, placedAgainstBlockPos)) {
+            placedAgainstBlockPos = placedAgainstBlockPos.down();
+        }
+
         IBlockState blockState = blockStates.get(player.getUniqueID());
-        player.world.setBlockState(placedAgainstBlockPos, blockState);
+        ItemStack itemStack = itemStacks.get(player.getUniqueID());
+        EnumHand hand = hands.get(player.getUniqueID());
+
+        SurvivalHelper.placeBlock(player.world, player, placedAgainstBlockPos, blockState, itemStack, message.getSideHit(), true, false);
 
         //Mirror and Array synergy
+        blockState = player.world.getBlockState(placedAgainstBlockPos);
         BlockSnapshot blockSnapshot = new BlockSnapshot(player.world, placedAgainstBlockPos, blockState);
-        BlockEvent.PlaceEvent placeEvent = new BlockEvent.PlaceEvent(blockSnapshot, blockState, player, EnumHand.MAIN_HAND);
-        Array.onBlockPlaced(placeEvent);
+        BlockEvent.PlaceEvent placeEvent = new BlockEvent.PlaceEvent(blockSnapshot, blockState, player, hand);
         Mirror.onBlockPlaced(placeEvent);
+        Array.onBlockPlaced(placeEvent);
     }
 }

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

@@ -49,6 +49,7 @@ public class BuildModifierCapability {
         public NBTBase writeNBT(Capability<IBuildModifier> capability, IBuildModifier instance, EnumFacing side) {
             NBTTagCompound compound = new NBTTagCompound();
             BuildSettings buildSettings = instance.getBuildModifierData();
+            if (buildSettings == null) buildSettings = new BuildSettings();
 
             //MIRROR
             Mirror.MirrorSettings m = buildSettings.getMirrorSettings();
@@ -71,6 +72,8 @@ public class BuildModifierCapability {
             compound.setInteger("arrayOffsetZ", a.offset.getZ());
             compound.setInteger("arrayCount", a.count);
 
+            compound.setInteger("reachUpgrade", buildSettings.getReachUpgrade());
+
             //compound.setBoolean("quickReplace", buildSettings.doQuickReplace()); dont save quickreplace
             return compound;
         }
@@ -96,9 +99,11 @@ public class BuildModifierCapability {
             int arrayCount = compound.getInteger("arrayCount");
             Array.ArraySettings arraySettings = new Array.ArraySettings(arrayEnabled, arrayOffset, arrayCount);
 
+            int reachUpgrade = compound.getInteger("reachUpgrade");
+
             //boolean quickReplace = compound.getBoolean("quickReplace"); //dont load quickreplace
 
-            BuildSettings buildSettings = new BuildSettings(mirrorSettings, arraySettings, false);
+            BuildSettings buildSettings = new BuildSettings(mirrorSettings, arraySettings, false, reachUpgrade);
             instance.setBuildModifierData(buildSettings);
         }
     }

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

@@ -0,0 +1,42 @@
+package nl.requios.effortlessbuilding.capability;
+
+import net.minecraft.nbt.NBTTagCompound;
+import net.minecraft.util.EnumFacing;
+import net.minecraftforge.common.capabilities.Capability;
+import net.minecraftforge.common.capabilities.ICapabilitySerializable;
+import net.minecraftforge.items.CapabilityItemHandler;
+import net.minecraftforge.items.IItemHandler;
+import net.minecraftforge.items.ItemStackHandler;
+import nl.requios.effortlessbuilding.item.ItemRandomizerBag;
+
+import javax.annotation.Nonnull;
+import javax.annotation.Nullable;
+
+public class ItemHandlerCapabilityProvider implements ICapabilitySerializable<NBTTagCompound> {
+    IItemHandler itemHandler = new ItemStackHandler(ItemRandomizerBag.INV_SIZE);
+
+    @Override
+    public boolean hasCapability(@Nonnull Capability<?> capability, @Nullable EnumFacing facing) {
+        if (capability == CapabilityItemHandler.ITEM_HANDLER_CAPABILITY)
+            return true;
+        return false;
+    }
+
+    @Nullable
+    @Override
+    public <T> T getCapability(@Nonnull Capability<T> capability, @Nullable EnumFacing facing) {
+        if (capability == CapabilityItemHandler.ITEM_HANDLER_CAPABILITY)
+            return (T) itemHandler;
+        return null;
+    }
+
+    @Override
+    public NBTTagCompound serializeNBT() {
+        return ((ItemStackHandler) itemHandler).serializeNBT();
+    }
+
+    @Override
+    public void deserializeNBT(NBTTagCompound nbt) {
+        ((ItemStackHandler) itemHandler).deserializeNBT(nbt);
+    }
+}

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

@@ -0,0 +1,75 @@
+package nl.requios.effortlessbuilding.gui;
+
+import net.minecraft.client.Minecraft;
+import net.minecraft.client.gui.GuiButton;
+import net.minecraft.client.gui.GuiScreen;
+import net.minecraft.util.ResourceLocation;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
+public class GuiIconButton extends GuiButton {
+
+    private final ResourceLocation resourceLocation;
+    private final int iconX, iconY, iconWidth, iconHeight, iconAltX, iconAltY;
+    List<String> tooltip = new ArrayList<>();
+    private boolean useAltIcon = false;
+
+    public GuiIconButton(int buttonId, int x, int y, int iconX, int iconY, ResourceLocation resourceLocation) {
+        this(buttonId, x, y, 20, 20, iconX, iconY, 20, 20, 20, 0, resourceLocation);
+    }
+
+    public GuiIconButton(int buttonId, int x, int y, int width, int height, int iconX, int iconY, int iconWidth, int iconHeight, int iconAltX, int iconAltY, ResourceLocation resourceLocation) {
+        super(buttonId, x, y, width, height, "");
+        this.iconX = iconX;
+        this.iconY = iconY;
+        this.iconWidth = iconWidth;
+        this.iconHeight = iconHeight;
+        this.iconAltX = iconAltX;
+        this.iconAltY = iconAltY;
+        this.resourceLocation = resourceLocation;
+    }
+
+    public void setTooltip(String tooltip) {
+        setTooltip(Arrays.asList(tooltip));
+    }
+
+    public void setTooltip(List<String> tooltip) {
+        this.tooltip = tooltip;
+    }
+
+    public void setUseAlternateIcon(boolean useAlternateIcon) {
+        this.useAltIcon = useAlternateIcon;
+    }
+
+    @Override
+    public void drawButton(Minecraft mc, int mouseX, int mouseY, float partialTicks) {
+        super.drawButton(mc, mouseX, mouseY, partialTicks);
+        if (this.visible)
+        {
+            this.hovered = mouseX >= this.x && mouseY >= this.y && mouseX < this.x + this.width && mouseY < this.y + this.height;
+            mc.getTextureManager().bindTexture(this.resourceLocation);
+            int currentIconX = this.iconX;
+            int currentIconY = this.iconY;
+
+            if (useAltIcon)
+            {
+                currentIconX += iconAltX;
+                currentIconY += iconAltY;
+            }
+
+            this.drawTexturedModalRect(this.x, this.y, currentIconX, currentIconY, this.iconWidth, this.iconHeight);
+        }
+    }
+
+    public void drawTooltip(GuiScreen guiScreen, int mouseX, int mouseY) {
+        boolean flag = mouseX >= x && mouseX < x + width && mouseY >= y && mouseY < y + height;
+
+        if (flag) {
+            List<String> textLines = new ArrayList<>();
+            textLines.addAll(tooltip);
+            guiScreen.drawHoveringText(textLines, mouseX - 10, mouseY + 25);
+        }
+    }
+}

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

@@ -0,0 +1,149 @@
+package nl.requios.effortlessbuilding.gui;
+
+import net.minecraft.client.Minecraft;
+import net.minecraft.client.gui.*;
+import net.minecraft.util.text.TextFormatting;
+import nl.requios.effortlessbuilding.EffortlessBuilding;
+import org.lwjgl.input.Keyboard;
+import org.lwjgl.input.Mouse;
+
+import java.io.IOException;
+import java.text.DecimalFormat;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
+public class GuiNumberField extends Gui {
+
+    int x, y, width, height;
+    int buttonWidth = 10;
+
+    protected GuiTextField textField;
+    protected GuiButton minusButton, plusButton;
+
+    List<String> tooltip = new ArrayList<>();
+
+    public GuiNumberField(int id1, int id2, int id3, FontRenderer fontRenderer,
+                          List<GuiButton> buttonList, int x, int y, int width, int height) {
+        this.x = x;
+        this.y = y;
+        this.width = width;
+        this.height = height;
+
+        textField = new GuiTextField(id1, fontRenderer, x + buttonWidth + 1, y + 1, width - 2 * buttonWidth - 2, height - 2);
+        minusButton = new GuiButton(id2, x, y - 1, buttonWidth, height + 2, "-");
+        plusButton  = new GuiButton(id3, x + width - buttonWidth, y - 1, buttonWidth, height + 2, "+");
+
+        buttonList.add(minusButton);
+        buttonList.add(plusButton);
+    }
+
+    public void setNumber(double number) {
+        DecimalFormat format = new DecimalFormat("0.#");
+        textField.setText(format.format(number));
+    }
+
+    public double getNumber() {
+        if (textField.getText().isEmpty()) return 0;
+        return Double.parseDouble(textField.getText());
+    }
+
+    public void setTooltip(String tooltip) {
+        setTooltip(Arrays.asList(tooltip));
+    }
+
+    public void setTooltip(List<String> tooltip) {
+        this.tooltip = tooltip;
+    }
+
+    public boolean mouseClicked(int mouseX, int mouseY, int mouseButton) {
+        boolean result = textField.mouseClicked(mouseX, mouseY, mouseButton);
+
+        //Check if clicked inside textfield
+        boolean flag = mouseX >= x + buttonWidth && mouseX < x + width - buttonWidth && mouseY >= y && mouseY < y + height;
+
+        //Rightclicked inside textfield
+        if (flag && mouseButton == 1) {
+            textField.setText("");
+            textField.setFocused(true);
+            result = true;
+        }
+
+        return result;
+    }
+
+    public void drawNumberField(Minecraft mc, int mouseX, int mouseY, float partialTicks) {
+        textField.drawTextBox();
+        minusButton.drawButton(mc, mouseX, mouseY, partialTicks);
+        plusButton.drawButton(mc, mouseX, mouseY, partialTicks);
+    }
+
+    public void drawTooltip(GuiScreen guiScreen, int mouseX, int mouseY) {
+        boolean insideTextField = mouseX >= x + buttonWidth && mouseX < x + width - buttonWidth && mouseY >= y && mouseY < y + height;
+        boolean insideMinusButton = mouseX >= x && mouseX < x + buttonWidth && mouseY >= y && mouseY < y + height;
+        boolean insidePlusButton = mouseX >= x + width - buttonWidth && mouseX < x + width && mouseY >= y && mouseY < y + height;
+
+        List<String> textLines = new ArrayList<>();
+
+        if (insideTextField) {
+            if (!tooltip.isEmpty())
+                textLines.addAll(tooltip);
+//            textLines.add(TextFormatting.GRAY + "Tip: try scrolling.");
+        }
+
+        if (insideMinusButton) {
+            textLines.add("Hold " + TextFormatting.AQUA + "shift " + TextFormatting.RESET + "for " + TextFormatting.RED + "10");
+            textLines.add("Hold " + TextFormatting.AQUA + "ctrl " + TextFormatting.RESET + "for " + TextFormatting.RED + "5");
+        }
+
+        if (insidePlusButton) {
+            textLines.add("Hold " + TextFormatting.AQUA + "shift " + TextFormatting.RESET + "for " + TextFormatting.DARK_GREEN + "10");
+            textLines.add("Hold " + TextFormatting.AQUA + "ctrl " + TextFormatting.RESET + "for " + TextFormatting.DARK_GREEN + "5");
+        }
+
+        guiScreen.drawHoveringText(textLines, mouseX - 10, mouseY + 25);
+
+    }
+
+    protected void actionPerformed(GuiButton button) {
+        float valueChanged = 1f;
+        if (GuiScreen.isCtrlKeyDown()) valueChanged = 5f;
+        if (GuiScreen.isShiftKeyDown()) valueChanged = 10f;
+
+        if (button == minusButton) {
+            setNumber(getNumber() - valueChanged);
+        }
+        if (button == plusButton) {
+            setNumber(getNumber() + valueChanged);
+        }
+    }
+
+    public void update() {
+        textField.updateCursorCounter();
+    }
+
+    protected 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
+//            || keyCode == Keyboard.KEY_UP || keyCode == Keyboard.KEY_DOWN) {
+            textField.textboxKeyTyped(typedChar, keyCode);
+//        }
+    }
+
+    public void handleMouseInput(int mouseX, int mouseY) {
+        boolean insideTextField = mouseX >= x + buttonWidth && mouseX < x + width - buttonWidth && mouseY >= y && mouseY < y + height;
+
+        if (insideTextField)
+        {
+            int valueChanged = 0;
+            if (Mouse.getEventDWheel() > 0)
+                valueChanged = 1;
+            if (Mouse.getEventDWheel() < 0)
+                valueChanged = -1;
+
+            if (valueChanged != 0)
+                setNumber(getNumber() + valueChanged);
+        }
+    }
+}

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

@@ -0,0 +1,135 @@
+package nl.requios.effortlessbuilding.gui;
+
+import net.minecraft.entity.player.EntityPlayer;
+import net.minecraft.entity.player.InventoryPlayer;
+import net.minecraft.inventory.ClickType;
+import net.minecraft.inventory.Container;
+import net.minecraft.inventory.IInventory;
+import net.minecraft.inventory.Slot;
+import net.minecraft.item.ItemStack;
+import net.minecraft.util.EnumHand;
+import net.minecraftforge.items.IItemHandler;
+import net.minecraftforge.items.SlotItemHandler;
+import nl.requios.effortlessbuilding.item.ItemRandomizerBag;
+
+public class RandomizerBagContainer extends Container {
+
+    private final IItemHandler bagInventory;
+    private final int sizeInventory;
+
+    private static final int INV_START = ItemRandomizerBag.INV_SIZE, INV_END = INV_START + 26,
+            HOTBAR_START = INV_END + 1, HOTBAR_END = HOTBAR_START + 8;
+
+    public RandomizerBagContainer(InventoryPlayer parInventoryPlayer, IItemHandler parIInventory) {
+        bagInventory = parIInventory;
+        sizeInventory = bagInventory.getSlots();
+        for (int i = 0; i < sizeInventory; ++i) {
+            this.addSlotToContainer(new SlotItemHandler(bagInventory, i, 44 + (18 * i), 20));
+        }
+
+        // add player inventory slots
+        int i;
+        for (i = 0; i < 3; ++i) {
+            for (int j = 0; j < 9; ++j) {
+                addSlotToContainer(new Slot(parInventoryPlayer, j + i * 9 + 9, 8 + j * 18, 51 + i * 18));
+            }
+        }
+
+        // add hotbar slots
+        for (i = 0; i < 9; ++i) {
+            addSlotToContainer(new Slot(parInventoryPlayer, i, 8 + i * 18, 109));
+        }
+    }
+
+    @Override
+    public boolean canInteractWith(EntityPlayer playerIn) {
+        return true;
+    }
+
+    @Override
+    public Slot getSlot(int parSlotIndex)
+    {
+        if(parSlotIndex >= inventorySlots.size())
+            parSlotIndex = inventorySlots.size() - 1;
+        return super.getSlot(parSlotIndex);
+    }
+
+    @Override
+    public ItemStack transferStackInSlot(EntityPlayer playerIn, int slotIndex) {
+        ItemStack itemstack = ItemStack.EMPTY;
+        Slot slot = this.inventorySlots.get(slotIndex);
+
+        if (slot != null && slot.getHasStack()) {
+            ItemStack itemstack1 = slot.getStack();
+            itemstack = itemstack1.copy();
+
+            // If item is in our custom inventory
+            if (slotIndex < INV_START) {
+                // try to place in player inventory / action bar
+                if (!this.mergeItemStack(itemstack1, INV_START, HOTBAR_END + 1, true)) {
+                    return ItemStack.EMPTY;
+                }
+
+                slot.onSlotChange(itemstack1, itemstack);
+            }
+            // Item is in inventory / hotbar, try to place in custom inventory or armor slots
+            else {
+                /**
+                 * Implementation number 1: Shift-click into your custom inventory
+                 */
+                if (slotIndex >= INV_START) {
+                    // place in custom inventory
+                    if (!this.mergeItemStack(itemstack1, 0, INV_START, false)) {
+                        return ItemStack.EMPTY;
+                    }
+                }
+
+            }
+
+            if (itemstack1.getCount() == 0) {
+                slot.putStack(ItemStack.EMPTY);
+            } else {
+                slot.onSlotChanged();
+            }
+
+            if (itemstack1.getCount() == itemstack.getCount()) {
+                return ItemStack.EMPTY;
+            }
+
+            slot.onTake(playerIn, itemstack1);
+        }
+
+        return itemstack;
+    }
+
+    /**
+     * You should override this method to prevent the player from moving the stack that
+     * opened the inventory, otherwise if the player moves it, the inventory will not
+     * be able to save properly
+     */
+    @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)) {
+            return ItemStack.EMPTY;
+        }
+        return clickItemStack;
+    }
+
+    /**
+     * Callback for when the crafting gui is closed.
+     */
+//    @Override
+//    public void onContainerClosed(EntityPlayer player)
+//    {
+//        if(player.inventory.getItemStack() != null)
+//        {
+//            player.entityDropItem(player.inventory.getItemStack(), 0.5f);
+//        }
+//        if(!player.world.isRemote)
+//        {
+//            detectAndSendChanges();
+//        }
+//    }
+}

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

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

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

@@ -0,0 +1,42 @@
+package nl.requios.effortlessbuilding.gui;
+
+import net.minecraft.entity.player.EntityPlayer;
+import net.minecraft.util.EnumHand;
+import net.minecraft.world.World;
+import net.minecraftforge.fml.common.network.IGuiHandler;
+import net.minecraftforge.fml.relauncher.Side;
+import net.minecraftforge.fml.relauncher.SideOnly;
+import net.minecraftforge.items.CapabilityItemHandler;
+import net.minecraftforge.items.IItemHandler;
+import nl.requios.effortlessbuilding.EffortlessBuilding;
+
+import javax.annotation.Nullable;
+
+public class RandomizerBagGuiHandler implements IGuiHandler {
+    @Nullable
+    @Override
+    public Object getServerGuiElement(int ID, EntityPlayer player, World world, int x, int y, int z) {
+        if (ID == EffortlessBuilding.RANDOMIZER_BAG_GUI) {
+            // Use the player's held item to create the container
+            IItemHandler capability = player.getHeldItemMainhand().hasCapability(CapabilityItemHandler.ITEM_HANDLER_CAPABILITY, null) ?
+                    player.getHeldItemMainhand().getCapability(CapabilityItemHandler.ITEM_HANDLER_CAPABILITY, null) :
+                    player.getHeldItemOffhand().getCapability(CapabilityItemHandler.ITEM_HANDLER_CAPABILITY, null);
+            return new RandomizerBagContainer(player.inventory, capability);
+        }
+        return null;
+    }
+
+    @Nullable
+    @Override
+    @SideOnly(Side.CLIENT)
+    public Object getClientGuiElement(int ID, EntityPlayer player, World world, int x, int y, int z) {
+        if (ID == EffortlessBuilding.RANDOMIZER_BAG_GUI) {
+            // Use the player's held item to create the client-side gui container
+            IItemHandler capability = player.getHeldItemMainhand().hasCapability(CapabilityItemHandler.ITEM_HANDLER_CAPABILITY, null) ?
+                    player.getHeldItemMainhand().getCapability(CapabilityItemHandler.ITEM_HANDLER_CAPABILITY, null) :
+                    player.getHeldItemOffhand().getCapability(CapabilityItemHandler.ITEM_HANDLER_CAPABILITY, null);
+            return new RandomizerBagGuiContainer(player.inventory, capability);
+        }
+        return null;
+    }
+}

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

@@ -1,11 +1,11 @@
 package nl.requios.effortlessbuilding.gui;
 
-import net.minecraft.client.Minecraft;
 import net.minecraft.client.gui.GuiButton;
 import net.minecraft.client.gui.GuiScreen;
-import net.minecraft.client.gui.GuiTextField;
+import net.minecraft.util.ResourceLocation;
 import net.minecraft.util.math.BlockPos;
 import net.minecraft.util.math.Vec3d;
+import net.minecraft.util.text.TextFormatting;
 import net.minecraftforge.fml.client.config.GuiCheckBox;
 import nl.requios.effortlessbuilding.Array;
 import nl.requios.effortlessbuilding.BuildSettingsManager;
@@ -13,28 +13,32 @@ import nl.requios.effortlessbuilding.EffortlessBuilding;
 import nl.requios.effortlessbuilding.Mirror;
 import nl.requios.effortlessbuilding.network.BuildSettingsMessage;
 import nl.requios.effortlessbuilding.proxy.ClientProxy;
-import org.lwjgl.input.Keyboard;
+import org.lwjgl.input.Mouse;
 
 import java.io.IOException;
 import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.List;
 
 public class SettingsGui extends GuiScreen {
 
-    protected List<GuiTextField> textFieldList = new ArrayList<>();
+    protected static final ResourceLocation BUILDING_ICONS = new ResourceLocation(EffortlessBuilding.MODID, "textures/gui/building_icons.png");
+
+    protected List<GuiNumberField> numberFieldList = new ArrayList<>();
 
     protected List<GuiButton> mirrorButtonList = new ArrayList<>();
-    protected List<GuiTextField> mirrorTextFieldList = new ArrayList<>();
-    protected List<GuiTextField> arrayTextFieldList = new ArrayList<>();
+    protected List<GuiIconButton> mirrorIconButtonList = new ArrayList<>();
+    protected List<GuiNumberField> mirrorNumberFieldList = new ArrayList<>();
+    protected List<GuiNumberField> arrayNumberFieldList = new ArrayList<>();
 
-    private GuiTextField textMirrorPosX, textMirrorPosY, textMirrorPosZ, textMirrorRadius;
+    private GuiNumberField textMirrorPosX, textMirrorPosY, textMirrorPosZ, textMirrorRadius;
     private GuiCheckBox buttonMirrorEnabled, buttonMirrorX, buttonMirrorY, buttonMirrorZ;
-    private GuiButton buttonDrawPlanes, buttonDrawLines;
-    private boolean drawPlanes, drawLines;
-    private GuiButton buttonCurrentPosition, buttonClose;
+    private GuiIconButton buttonCurrentPosition, buttonToggleOdd, buttonDrawPlanes, buttonDrawLines;
+    private boolean drawPlanes, drawLines, toggleOdd;
+    private GuiButton buttonClose;
 
     private GuiCheckBox buttonArrayEnabled;
-    private GuiTextField textArrayOffsetX, textArrayOffsetY, textArrayOffsetZ, textArrayCount;
+    private GuiNumberField textArrayOffsetX, textArrayOffsetY, textArrayOffsetZ, textArrayCount;
 
     private int left, right, top, bottom;
 
@@ -53,17 +57,20 @@ public class SettingsGui extends GuiScreen {
         buttonList.add(buttonMirrorEnabled);
 
         y = top + 18;
-        textMirrorPosX = new GuiTextField(id++, fontRenderer, left + 70, y, 50, 18);
-        textMirrorPosX.setText("0.5");
-        mirrorTextFieldList.add(textMirrorPosX);
+        textMirrorPosX = new GuiNumberField(id++, id++, id++, fontRenderer, buttonList, left + 58, y, 62, 18);
+        textMirrorPosX.setNumber(0);
+        textMirrorPosX.setTooltip(Arrays.asList("The position of the mirror.", TextFormatting.GRAY + "For odd numbered builds add 0.5."));
+        mirrorNumberFieldList.add(textMirrorPosX);
 
-        textMirrorPosY = new GuiTextField(id++, fontRenderer, left + 140, y, 50, 18);
-        textMirrorPosY.setText("64.5");
-        mirrorTextFieldList.add(textMirrorPosY);
+        textMirrorPosY = new GuiNumberField(id++, id++, id++, fontRenderer, buttonList, left + 138, y, 62, 18);
+        textMirrorPosY.setNumber(64);
+        textMirrorPosY.setTooltip(Arrays.asList("The position of the mirror.", TextFormatting.GRAY + "For odd numbered builds add 0.5."));
+        mirrorNumberFieldList.add(textMirrorPosY);
 
-        textMirrorPosZ = new GuiTextField(id++, fontRenderer, left + 210, y, 50, 18);
-        textMirrorPosZ.setText("0.5");
-        mirrorTextFieldList.add(textMirrorPosZ);
+        textMirrorPosZ = new GuiNumberField(id++, id++, id++, fontRenderer, buttonList, left + 218, y, 62, 18);
+        textMirrorPosZ.setNumber(0);
+        textMirrorPosZ.setTooltip(Arrays.asList("The position of the mirror.", TextFormatting.GRAY + "For odd numbered builds add 0.5."));
+        mirrorNumberFieldList.add(textMirrorPosZ);
 
         y = top + 50;
         buttonMirrorX = new GuiCheckBox(id++, left + 60, y, " X", true);
@@ -76,19 +83,30 @@ public class SettingsGui extends GuiScreen {
         mirrorButtonList.add(buttonMirrorZ);
 
         y = top + 47;
-        textMirrorRadius = new GuiTextField(id++, fontRenderer, left + 220, y, 60, 18);
-        textMirrorRadius.setText("50");
-        mirrorTextFieldList.add(textMirrorRadius);
+        textMirrorRadius = new GuiNumberField(id++, id++, id++, fontRenderer, buttonList, left + 218, y, 62, 18);
+        textMirrorRadius.setNumber(50);
+        //TODO change to diameter (remove /2)
+        textMirrorRadius.setTooltip(Arrays.asList("How far the mirror reaches in any direction.",
+                TextFormatting.GRAY + "Max: " + TextFormatting.GOLD + BuildSettingsManager.getMaxReach(mc.player) / 2,
+                TextFormatting.GRAY + "Upgradeable in survival with reach upgrades."));
+        mirrorNumberFieldList.add(textMirrorRadius);
 
         y = top + 72;
-        buttonCurrentPosition = new GuiButton(id++, left + 5, y, 110, 20, "Set to current pos");
-        mirrorButtonList.add(buttonCurrentPosition);
+        buttonCurrentPosition = new GuiIconButton(id++, left + 5, y, 0, 0, BUILDING_ICONS);
+        buttonCurrentPosition.setTooltip("Set mirror position to current player position");
+        mirrorIconButtonList.add(buttonCurrentPosition);
 
-        buttonDrawLines = new GuiButton(id++, left + 127, y, 70, 20, "Show lines");
-        mirrorButtonList.add(buttonDrawLines);
+        buttonToggleOdd = new GuiIconButton(id++, left + 35, y, 0, 20, BUILDING_ICONS);
+        buttonToggleOdd.setTooltip(Arrays.asList("Set mirror position to middle of block", "for odd numbered builds"));
+        mirrorIconButtonList.add(buttonToggleOdd);
 
-        buttonDrawPlanes = new GuiButton(id++, left + 209, y, 75, 20, "Show area");
-        mirrorButtonList.add(buttonDrawPlanes);
+        buttonDrawLines = new GuiIconButton(id++, left + 65, y, 0, 40, BUILDING_ICONS);
+        buttonDrawLines.setTooltip("Show lines");
+        mirrorIconButtonList.add(buttonDrawLines);
+
+        buttonDrawPlanes = new GuiIconButton(id++, left + 95, y, 0, 60, BUILDING_ICONS);
+        buttonDrawPlanes.setTooltip("Show area");
+        mirrorIconButtonList.add(buttonDrawPlanes);
 
         //ARRAY
         y = top + 100;
@@ -96,22 +114,26 @@ public class SettingsGui extends GuiScreen {
         buttonList.add(buttonArrayEnabled);
 
         y = top + 120;
-        textArrayOffsetX = new GuiTextField(id++, fontRenderer, left + 70, y, 50, 18);
-        textArrayOffsetX.setText("0");
-        arrayTextFieldList.add(textArrayOffsetX);
+        textArrayOffsetX = new GuiNumberField(id++, id++, id++, fontRenderer, buttonList, left + 70, y, 50, 18);
+        textArrayOffsetX.setNumber(0);
+        textArrayOffsetX.setTooltip("How much each copy is shifted.");
+        arrayNumberFieldList.add(textArrayOffsetX);
 
-        textArrayOffsetY = new GuiTextField(id++, fontRenderer, left + 140, y, 50, 18);
-        textArrayOffsetY.setText("0");
-        arrayTextFieldList.add(textArrayOffsetY);
+        textArrayOffsetY = new GuiNumberField(id++, id++, id++, fontRenderer, buttonList, left + 140, y, 50, 18);
+        textArrayOffsetY.setNumber(0);
+        textArrayOffsetY.setTooltip("How much each copy is shifted.");
+        arrayNumberFieldList.add(textArrayOffsetY);
 
-        textArrayOffsetZ = new GuiTextField(id++, fontRenderer, left + 210, y, 50, 18);
-        textArrayOffsetZ.setText("0");
-        arrayTextFieldList.add(textArrayOffsetZ);
+        textArrayOffsetZ = new GuiNumberField(id++, id++, id++, fontRenderer, buttonList, left + 210, y, 50, 18);
+        textArrayOffsetZ.setNumber(0);
+        textArrayOffsetZ.setTooltip("How much each copy is shifted.");
+        arrayNumberFieldList.add(textArrayOffsetZ);
 
         y = top + 150;
-        textArrayCount = new GuiTextField(id++, fontRenderer, left + 55, y, 50, 18);
-        textArrayCount.setText("5");
-        arrayTextFieldList.add(textArrayCount);
+        textArrayCount = new GuiNumberField(id++, id++, id++, fontRenderer, buttonList, left + 55, y, 50, 18);
+        textArrayCount.setNumber(5);
+        textArrayCount.setTooltip("How many copies should be made.");
+        arrayNumberFieldList.add(textArrayCount);
 
         //CLOSE
         y = height - 40;
@@ -123,36 +145,47 @@ public class SettingsGui extends GuiScreen {
             //MIRROR
             Mirror.MirrorSettings m = buildSettings.getMirrorSettings();
             buttonMirrorEnabled.setIsChecked(m.enabled);
-            textMirrorPosX.setText(String.valueOf(m.position.x));
-            textMirrorPosY.setText(String.valueOf(m.position.y));
-            textMirrorPosZ.setText(String.valueOf(m.position.z));
+            textMirrorPosX.setNumber(m.position.x);
+            textMirrorPosY.setNumber(m.position.y);
+            textMirrorPosZ.setNumber(m.position.z);
             buttonMirrorX.setIsChecked(m.mirrorX);
             buttonMirrorY.setIsChecked(m.mirrorY);
             buttonMirrorZ.setIsChecked(m.mirrorZ);
-            textMirrorRadius.setText(String.valueOf(m.radius));
+            textMirrorRadius.setNumber(m.radius);
             drawLines = m.drawLines;
             drawPlanes = m.drawPlanes;
-            buttonDrawLines.displayString = drawLines ? "Hide lines" : "Show lines";
-            buttonDrawPlanes.displayString = drawPlanes ? "Hide area" : "Show area";
+            buttonDrawLines.setUseAlternateIcon(drawLines);
+            buttonDrawPlanes.setUseAlternateIcon(drawPlanes);
+            buttonDrawLines.setTooltip(drawLines ? "Hide lines" : "Show lines");
+            buttonDrawPlanes.setTooltip(drawPlanes ? "Hide area" : "Show area");
+            if (textMirrorPosX.getNumber() == Math.floor(textMirrorPosX.getNumber())) {
+                toggleOdd = false;
+                buttonToggleOdd.setTooltip(Arrays.asList("Set mirror position to middle of block", "for odd numbered builds"));
+            } else {
+                toggleOdd = true;
+                buttonToggleOdd.setTooltip(Arrays.asList("Set mirror position to corner of block", "for even numbered builds"));
+            }
+            buttonToggleOdd.setUseAlternateIcon(toggleOdd);
 
             //ARRAY
             Array.ArraySettings a = buildSettings.getArraySettings();
             buttonArrayEnabled.setIsChecked(a.enabled);
-            textArrayOffsetX.setText(String.valueOf(a.offset.getX()));
-            textArrayOffsetY.setText(String.valueOf(a.offset.getY()));
-            textArrayOffsetZ.setText(String.valueOf(a.offset.getZ()));
-            textArrayCount.setText(String.valueOf(a.count));
+            textArrayOffsetX.setNumber(a.offset.getX());
+            textArrayOffsetY.setNumber(a.offset.getY());
+            textArrayOffsetZ.setNumber(a.offset.getZ());
+            textArrayCount.setNumber(a.count);
         }
 
         buttonList.addAll(mirrorButtonList);
-        textFieldList.addAll(mirrorTextFieldList);
-        textFieldList.addAll(arrayTextFieldList);
+        buttonList.addAll(mirrorIconButtonList);
+        numberFieldList.addAll(mirrorNumberFieldList);
+        numberFieldList.addAll(arrayNumberFieldList);
     }
 
     @Override
     //Process general logic, i.e. hide buttons
     public void updateScreen() {
-        textFieldList.forEach(GuiTextField::updateCursorCounter);
+        numberFieldList.forEach(GuiNumberField::update);
     }
 
     @Override
@@ -170,16 +203,17 @@ public class SettingsGui extends GuiScreen {
 
             y = top + 18 + 5;
             fontRenderer.drawString("Position", left + offset, y, 0xFFFFFF, true);
-            fontRenderer.drawString("X", left + 50 + offset, y, 0xFFFFFF, true);
+            fontRenderer.drawString("X", left + 40 + offset, y, 0xFFFFFF, true);
             fontRenderer.drawString("Y", left + 120 + offset, y, 0xFFFFFF, true);
-            fontRenderer.drawString("Z", left + 190 + offset, y, 0xFFFFFF, true);
+            fontRenderer.drawString("Z", left + 200 + offset, y, 0xFFFFFF, true);
 
             y = top + 52;
             fontRenderer.drawString("Direction", left + offset, y, 0xFFFFFF, true);
-            fontRenderer.drawString("Size", left + 190, y, 0xFFFFFF, true);
+            fontRenderer.drawString("Reach", left + 176 + offset, y, 0xFFFFFF, true);
 
             mirrorButtonList.forEach(button -> button.drawButton(this.mc, mouseX, mouseY, partialTicks));
-            mirrorTextFieldList.forEach(textField -> textField.drawTextBox());
+            mirrorIconButtonList.forEach(button -> button.drawButton(this.mc, mouseX, mouseY, partialTicks));
+            mirrorNumberFieldList.forEach(numberField -> numberField.drawNumberField(this.mc, mouseX, mouseY, partialTicks));
         } else {
             fontRenderer.drawString("Mirror disabled", left + offset, y, 0x999999, true);
         }
@@ -198,33 +232,69 @@ public class SettingsGui extends GuiScreen {
             y = top + 150 + 5;
             fontRenderer.drawString("Count", left + offset, y, 0xFFFFFF, true);
 
-            arrayTextFieldList.forEach(textField -> textField.drawTextBox());
+            int currentReach = Math.max(-1, getArrayReach());
+            int maxReach = BuildSettingsManager.getMaxReach(mc.player);
+            TextFormatting reachColor = isCurrentReachValid(currentReach, maxReach) ? TextFormatting.GRAY : TextFormatting.RED;
+            String reachText = "Reach: " + reachColor + currentReach + TextFormatting.GRAY + "/" + TextFormatting.GRAY + maxReach;
+            fontRenderer.drawString(reachText, left + 176 + offset, y, 0xFFFFFF, true);
+
+            arrayNumberFieldList.forEach(numberField -> numberField.drawNumberField(this.mc, mouseX, mouseY, partialTicks));
         } else {
             fontRenderer.drawString("Array disabled", left + offset, y, 0x999999, true);
         }
 
         buttonClose.drawButton(this.mc, mouseX, mouseY, partialTicks);
+
+        //Draw tooltips last
+        if (buttonMirrorEnabled.isChecked())
+        {
+            mirrorIconButtonList.forEach(iconButton -> iconButton.drawTooltip(this, mouseX, mouseY));
+            mirrorNumberFieldList.forEach(numberField -> numberField.drawTooltip(this, mouseX, mouseY));
+        }
+        if (buttonArrayEnabled.isChecked())
+        {
+            arrayNumberFieldList.forEach(numberField -> numberField.drawTooltip(this, mouseX, mouseY));
+        }
     }
 
     @Override
     protected void keyTyped(char typedChar, int keyCode) throws IOException {
         super.keyTyped(typedChar, keyCode);
-        if (Character.isDigit(typedChar) || typedChar == '.' || typedChar == '-' || keyCode == Keyboard.KEY_BACK || keyCode == Keyboard.KEY_DELETE) {
-            for (GuiTextField textField : textFieldList) {
-                if (textField.isFocused()) {
-                    textField.textboxKeyTyped(typedChar, keyCode);
-                }
-            }
+        for (GuiNumberField numberField : numberFieldList) {
+            numberField.keyTyped(typedChar, keyCode);
         }
         if (keyCode == ClientProxy.keyBindings[0].getKeyCode()) {
-            Minecraft.getMinecraft().player.closeScreen();
+            mc.player.closeScreen();
         }
     }
 
     @Override
     protected void mouseClicked(int mouseX, int mouseY, int mouseButton) throws IOException {
         super.mouseClicked(mouseX, mouseY, mouseButton);
-        textFieldList.forEach(textField -> textField.mouseClicked(mouseX, mouseY, mouseButton));
+        numberFieldList.forEach(numberField -> numberField.mouseClicked(mouseX, mouseY, mouseButton));
+
+        boolean insideMirrorEnabledLabel = mouseX >= left && mouseX < right && mouseY >= top - 2 && mouseY < top + 10;
+        boolean insideArrayEnabledLabel = mouseX >= left && mouseX < right && mouseY >= top + 100 && mouseY < top + 112;
+
+        if (insideMirrorEnabledLabel) {
+            buttonMirrorEnabled.setIsChecked(!buttonMirrorEnabled.isChecked());
+            buttonMirrorEnabled.playPressSound(this.mc.getSoundHandler());
+            actionPerformed(buttonMirrorEnabled);
+        }
+
+        if (insideArrayEnabledLabel) {
+            buttonArrayEnabled.setIsChecked(!buttonArrayEnabled.isChecked());
+            buttonArrayEnabled.playPressSound(this.mc.getSoundHandler());
+            actionPerformed(buttonArrayEnabled);
+        }
+    }
+
+    @Override
+    public void handleMouseInput() throws IOException {
+        super.handleMouseInput();
+        int mouseX = Mouse.getEventX() * this.width / this.mc.displayWidth;
+        int mouseY = this.height - Mouse.getEventY() * this.height / this.mc.displayHeight - 1;
+        numberFieldList.forEach(numberField -> numberField.handleMouseInput(mouseX, mouseY));
     }
 
     @Override
@@ -235,18 +305,36 @@ public class SettingsGui extends GuiScreen {
         }
         if (button == buttonCurrentPosition) {
             Vec3d pos = new Vec3d(Math.floor(mc.player.posX) + 0.5, Math.floor(mc.player.posY) + 0.5, Math.floor(mc.player.posZ) + 0.5);
-            textMirrorPosX.setText(String.valueOf(pos.x));
-            textMirrorPosY.setText(String.valueOf(pos.y));
-            textMirrorPosZ.setText(String.valueOf(pos.z));
+            textMirrorPosX.setNumber(pos.x);
+            textMirrorPosY.setNumber(pos.y);
+            textMirrorPosZ.setNumber(pos.z);
+        }
+        if (button == buttonToggleOdd) {
+            toggleOdd = !toggleOdd;
+            buttonToggleOdd.setUseAlternateIcon(toggleOdd);
+            if (toggleOdd) {
+                buttonToggleOdd.setTooltip(Arrays.asList("Set mirror position to corner of block", "for even numbered builds"));
+                textMirrorPosX.setNumber(textMirrorPosX.getNumber() + 0.5);
+                textMirrorPosY.setNumber(textMirrorPosY.getNumber() + 0.5);
+                textMirrorPosZ.setNumber(textMirrorPosZ.getNumber() + 0.5);
+            } else {
+                buttonToggleOdd.setTooltip(Arrays.asList("Set mirror position to middle of block", "for odd numbered builds"));
+                textMirrorPosX.setNumber(Math.floor(textMirrorPosX.getNumber()));
+                textMirrorPosY.setNumber(Math.floor(textMirrorPosY.getNumber()));
+                textMirrorPosZ.setNumber(Math.floor(textMirrorPosZ.getNumber()));
+            }
         }
         if (button == buttonDrawLines) {
             drawLines = !drawLines;
-            buttonDrawLines.displayString = drawLines ? "Hide lines" : "Show lines";
+            buttonDrawLines.setUseAlternateIcon(drawLines);
+            buttonDrawLines.setTooltip(drawLines ? "Hide lines" : "Show lines");
         }
         if (button == buttonDrawPlanes) {
             drawPlanes = !drawPlanes;
-            buttonDrawPlanes.displayString = drawPlanes ? "Hide area" : "Show area";
+            buttonDrawPlanes.setUseAlternateIcon(drawPlanes);
+            buttonDrawPlanes.setTooltip(drawPlanes ? "Hide area" : "Show area");
         }
+        numberFieldList.forEach(numberField -> numberField.actionPerformed(button));
     }
 
     @Override
@@ -256,12 +344,11 @@ public class SettingsGui extends GuiScreen {
         //MIRROR
         boolean mirrorEnabled = buttonMirrorEnabled.isChecked();
 
-        Vec3d mirrorPos = new Vec3d(0.5, 64.5, 0.5);
+        Vec3d mirrorPos = new Vec3d(0, 64, 0);
         try {
-            mirrorPos = new Vec3d(Double.parseDouble(textMirrorPosX.getText()), Double.parseDouble(textMirrorPosY.getText()), Double.parseDouble(textMirrorPosZ.getText()));
+            mirrorPos = new Vec3d(textMirrorPosX.getNumber(), textMirrorPosY.getNumber(), textMirrorPosZ.getNumber());
         } catch (NumberFormatException | NullPointerException ex) {
-            EffortlessBuilding.log(Minecraft.getMinecraft().player, "Mirror position not valid.", true);
-            EffortlessBuilding.log("Mirror position not valid. Resetting to default.");
+            EffortlessBuilding.log(mc.player, "Mirror position not valid.");
         }
 
         boolean mirrorX = buttonMirrorX.isChecked();
@@ -270,13 +357,10 @@ public class SettingsGui extends GuiScreen {
 
         int mirrorRadius = 50;
         try {
-            mirrorRadius = Math.min(Integer.parseInt(textMirrorRadius.getText()), Mirror.MAX_RADIUS);
+            mirrorRadius = (int) textMirrorRadius.getNumber();
         } catch (NumberFormatException | NullPointerException ex) {
-            EffortlessBuilding.log(Minecraft.getMinecraft().player, "Mirror radius not valid.", true);
-            EffortlessBuilding.log("Mirror radius not valid. Resetting to default.");
+            EffortlessBuilding.log(mc.player, "Mirror radius not valid.");
         }
-        mirrorRadius = Math.max(1, mirrorRadius);
-        mirrorRadius = Math.min(Mirror.MAX_RADIUS, mirrorRadius);
 
         Mirror.MirrorSettings m = new Mirror.MirrorSettings(mirrorEnabled, mirrorPos, mirrorX, mirrorY, mirrorZ, mirrorRadius, drawLines, drawPlanes);
 
@@ -284,21 +368,17 @@ public class SettingsGui extends GuiScreen {
         boolean arrayEnabled = buttonArrayEnabled.isChecked();
         BlockPos arrayOffset = new BlockPos(0, 0, 0);
         try {
-            arrayOffset = new BlockPos(Integer.parseInt(textArrayOffsetX.getText()), Integer.parseInt(textArrayOffsetY.getText()), Integer.parseInt(textArrayOffsetZ.getText()));
+            arrayOffset = new BlockPos(textArrayOffsetX.getNumber(), textArrayOffsetY.getNumber(), textArrayOffsetZ.getNumber());
         } catch (NumberFormatException | NullPointerException ex) {
-            EffortlessBuilding.log(Minecraft.getMinecraft().player, "Array offset not valid.", true);
-            EffortlessBuilding.log("Array offset not valid. Resetting to default.");
+            EffortlessBuilding.log(mc.player, "Array offset not valid.");
         }
 
         int arrayCount = 5;
         try {
-            arrayCount = Integer.parseInt(textArrayCount.getText());
+            arrayCount = (int) textArrayCount.getNumber();
         } catch (NumberFormatException | NullPointerException ex) {
-            EffortlessBuilding.log(Minecraft.getMinecraft().player, "Array count not valid.", true);
-            EffortlessBuilding.log("Array count not valid. Resetting to default.");
+            EffortlessBuilding.log(mc.player, "Array count not valid.");
         }
-        arrayCount = Math.max(1, arrayCount);
-        arrayCount = Math.min(Array.MAX_COUNT, arrayCount);
 
         Array.ArraySettings a = new Array.ArraySettings(arrayEnabled, arrayOffset, arrayCount);
 
@@ -306,9 +386,32 @@ public class SettingsGui extends GuiScreen {
         if (buildSettings == null) buildSettings = new BuildSettingsManager.BuildSettings();
         buildSettings.setMirrorSettings(m);
         buildSettings.setArraySettings(a);
+
+        //Sanitize
+        String error = BuildSettingsManager.sanitize(buildSettings, mc.player);
+        if (!error.isEmpty()) EffortlessBuilding.log(mc.player, error);
+
         BuildSettingsManager.setBuildSettings(mc.player, buildSettings);
 
         //Send to server
         EffortlessBuilding.packetHandler.sendToServer(new BuildSettingsMessage(buildSettings));
     }
+
+    private int getArrayReach() {
+        try
+        {
+            //find largest offset
+            double x = Math.abs(textArrayOffsetX.getNumber());
+            double y = Math.abs(textArrayOffsetY.getNumber());
+            double z = Math.abs(textArrayOffsetZ.getNumber());
+            double largestOffset = Math.max(Math.max(x, y), z);
+            return (int) (largestOffset * textArrayCount.getNumber());
+        } catch (NumberFormatException | NullPointerException ex) {
+            return -1;
+        }
+    }
+
+    private boolean isCurrentReachValid(int currentReach, int maxReach) {
+        return currentReach <= maxReach && currentReach > -1;
+    }
 }

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

@@ -0,0 +1,307 @@
+package nl.requios.effortlessbuilding.helper;
+
+import net.minecraft.client.Minecraft;
+import net.minecraft.client.renderer.BufferBuilder;
+import net.minecraft.client.renderer.RenderGlobal;
+import net.minecraft.client.renderer.Tessellator;
+import net.minecraft.client.renderer.vertex.DefaultVertexFormats;
+import net.minecraft.entity.player.EntityPlayer;
+import net.minecraft.item.ItemStack;
+import net.minecraft.item.ItemTool;
+import net.minecraft.util.math.*;
+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 org.lwjgl.opengl.GL11;
+import org.lwjgl.util.Color;
+
+@Mod.EventBusSubscriber(Side.CLIENT)
+public class RenderHelper {
+
+    private static final Color colorX = new Color(255, 72, 52);
+    private static final Color colorY = new Color(67, 204, 51);
+    private static final Color colorZ = new Color(52, 247, 255);
+    private static final int lineAlpha = 200;
+    private static final int planeAlpha = 75;
+    private static final Vec3d epsilon = new Vec3d(0.001, 0.001, 0.001); //prevents z-fighting
+
+    public static 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.glPushAttrib(GL11.GL_ENABLE_BIT);
+        GL11.glPushMatrix();
+        GL11.glDisable(GL11.GL_CULL_FACE);
+        GL11.glDisable(GL11.GL_LIGHTING);
+        GL11.glDisable(GL11.GL_TEXTURE_2D);
+
+        GL11.glEnable(GL11.GL_BLEND);
+        GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);
+
+        GL11.glTranslated(-playerPos.x, -playerPos.y, -playerPos.z);
+
+        GL11.glLineWidth(2);
+        GL11.glDepthMask(false);
+    }
+
+    public static void end() {
+        GL11.glDepthMask(true);
+        GL11.glPopMatrix();
+        GL11.glPopAttrib();
+    }
+
+    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, 1f, 1f, 1f, 0.6f);
+    }
+
+    @SubscribeEvent
+    public static void onRender(RenderWorldLastEvent event) {
+        EntityPlayer player = Minecraft.getMinecraft().player;
+        BuildSettingsManager.BuildSettings buildSettings = BuildSettingsManager.getBuildSettings(player);
+        if (buildSettings == null) return;
+        Mirror.MirrorSettings m = buildSettings.getMirrorSettings();
+        Array.ArraySettings a = buildSettings.getArraySettings();
+
+        begin(event.getPartialTicks());
+
+        //Mirror
+        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);
+            }
+            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);
+            }
+
+            //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);
+            }
+
+        }
+
+        //Render block outlines
+        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 && objectMouseOver.typeOfHit == RayTraceResult.Type.BLOCK)
+        {
+            BlockPos blockPos = objectMouseOver.getBlockPos();
+
+            //Check if tool (or none) in hand
+            ItemStack mainhand = player.getHeldItemMainhand();
+            //ItemStack offhand = player.getHeldItemOffhand();
+            //boolean noneInHand = mainhand.isEmpty() && (offhand.isEmpty() || offhand.getItem() instanceof ItemTool);
+            boolean toolInHand = !mainhand.isEmpty() && mainhand.getItem() instanceof ItemTool;
+            if (!buildSettings.doQuickReplace() && !toolInHand) {
+                blockPos = blockPos.offset(objectMouseOver.sideHit);
+            }
+
+            if (buildSettings.doQuickReplace() && !toolInHand) {
+                //Get under tall grass and other replaceable blocks
+                if (player.world.getBlockState(blockPos).getBlock().isReplaceable(player.world, blockPos)) {
+                    blockPos = blockPos.down();
+                }
+            }
+
+            //Render current block outline based on config, or when QuickReplace is enabled
+            if (buildSettings.doQuickReplace() || BuildConfig.visuals.showOutlineOnCurrentBlock) {
+                RenderHelper.renderBlockOutline(blockPos);
+            }
+
+            //Mirror
+            if (m != null && m.enabled && (m.mirrorX || m.mirrorY || m.mirrorZ) &&
+                    !(blockPos.getX() + 0.5 < m.position.x - m.radius) && !(blockPos.getX() + 0.5 > m.position.x + m.radius) &&
+                    !(blockPos.getY() + 0.5 < m.position.y - m.radius) && !(blockPos.getY() + 0.5 > m.position.y + m.radius) &&
+                    !(blockPos.getZ() + 0.5 < m.position.z - m.radius) && !(blockPos.getZ() + 0.5 > m.position.z + m.radius))
+            {
+                if (m.mirrorX) drawMirrorBlockOutlineX(buildSettings, blockPos);
+                if (m.mirrorY) drawMirrorBlockOutlineY(buildSettings, blockPos);
+                if (m.mirrorZ) drawMirrorBlockOutlineZ(buildSettings, blockPos);
+            }
+
+            //Array
+            if (a != null && a.enabled && (a.offset.getX() != 0 || a.offset.getY() != 0 || a.offset.getZ() != 0)) {
+                drawArrayBlockOutlines(a, blockPos);
+            }
+        }
+
+        end();
+    }
+
+
+    //----Mirror----
+
+    public static void drawMirrorPlane(Vec3d posA, Vec3d posB, Color c, boolean drawLines, boolean drawPlanes) {
+
+        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();
+            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();
+    }
+
+    public static void drawMirrorBlockOutlineX(BuildSettingsManager.BuildSettings buildSettings, BlockPos oldBlockPos) {
+        Mirror.MirrorSettings m = buildSettings.getMirrorSettings();
+        //find mirror position
+        double x = m.position.x + (m.position.x - oldBlockPos.getX() - 0.5);
+        BlockPos newBlockPos = new BlockPos(x, oldBlockPos.getY(), oldBlockPos.getZ());
+
+        RenderHelper.renderBlockOutline(newBlockPos);
+
+        //Array synergy
+        drawArrayBlockOutlines(buildSettings.getArraySettings(), newBlockPos);
+
+        if (m.mirrorY) drawMirrorBlockOutlineY(buildSettings, newBlockPos);
+        if (m.mirrorZ) drawMirrorBlockOutlineZ(buildSettings, newBlockPos);
+    }
+
+    public static void drawMirrorBlockOutlineY(BuildSettingsManager.BuildSettings buildSettings, BlockPos oldBlockPos) {
+        Mirror.MirrorSettings m = buildSettings.getMirrorSettings();
+        //find mirror position
+        double y = m.position.y + (m.position.y - oldBlockPos.getY() - 0.5);
+        BlockPos newBlockPos = new BlockPos(oldBlockPos.getX(), y, oldBlockPos.getZ());
+
+        RenderHelper.renderBlockOutline(newBlockPos);
+
+        //Array synergy
+        drawArrayBlockOutlines(buildSettings.getArraySettings(), newBlockPos);
+
+        if (m.mirrorZ) drawMirrorBlockOutlineZ(buildSettings, newBlockPos);
+    }
+
+    public static void drawMirrorBlockOutlineZ(BuildSettingsManager.BuildSettings buildSettings, BlockPos oldBlockPos) {
+        Mirror.MirrorSettings m = buildSettings.getMirrorSettings();
+        //find mirror position
+        double z = m.position.z + (m.position.z - oldBlockPos.getZ() - 0.5);
+        BlockPos newBlockPos = new BlockPos(oldBlockPos.getX(), oldBlockPos.getY(), z);
+
+        RenderHelper.renderBlockOutline(newBlockPos);
+
+        //Array synergy
+        drawArrayBlockOutlines(buildSettings.getArraySettings(), newBlockPos);
+    }
+
+
+    //----Array----
+
+    public static void drawArrayBlockOutlines(Array.ArraySettings a, BlockPos pos) {
+        if (a == null || !a.enabled || (a.offset.getX() == 0 && a.offset.getY() == 0 && a.offset.getZ() == 0)) return;
+
+        Vec3i offset = new Vec3i(a.offset.getX(), a.offset.getY(), a.offset.getZ());
+
+        //RenderHelper.renderBlockOutline(blockPos);
+        for (int i = 0; i < a.count; i++)
+        {
+            pos = pos.add(offset);
+            RenderHelper.renderBlockOutline(pos);
+        }
+    }
+
+}

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

@@ -0,0 +1,212 @@
+package nl.requios.effortlessbuilding.helper;
+
+import net.minecraft.block.Block;
+import net.minecraft.block.SoundType;
+import net.minecraft.block.material.Material;
+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.ItemStack;
+import net.minecraft.util.EnumFacing;
+import net.minecraft.util.SoundCategory;
+import net.minecraft.util.math.AxisAlignedBB;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.world.IBlockAccess;
+import net.minecraft.world.World;
+import net.minecraftforge.items.IItemHandler;
+import net.minecraftforge.items.ItemHandlerHelper;
+import nl.requios.effortlessbuilding.EffortlessBuilding;
+import nl.requios.effortlessbuilding.item.ItemRandomizerBag;
+
+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, boolean skipCollisionCheck, boolean playSound) {
+        if (!world.isBlockLoaded(pos, true)) return false;
+
+        //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()));
+        }
+
+        //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());
+            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))
+        {
+            //Drop existing block
+            //TODO check if can replace
+            dropBlock(world, player, pos);
+
+            //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);
+            }
+
+            if (playSound) {
+                SoundType soundtype = state.getBlock().getSoundType(state, 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);
+            }
+
+            return true;
+        }
+        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) {
+        if (!world.isBlockLoaded(pos, false)) return false;
+
+        //Check if can break
+        if (canBreak(world, player, pos))
+        {
+            //Drop existing block
+            dropBlock(world, player, pos);
+
+            //Damage tool
+            player.getHeldItemMainhand().onBlockDestroyed(world, world.getBlockState(pos), pos, player);
+
+            world.setBlockToAir(pos);
+            return true;
+        }
+        return false;
+    }
+
+    //Can break using held tool? (or in creative)
+    public static boolean canBreak(World world, EntityPlayer player, BlockPos pos) {
+        if (player.isCreative()) return true;
+
+        IBlockState blockState = world.getBlockState(pos);
+        return canHarvestBlock(blockState.getBlock(), player, world, pos);
+
+    }
+
+    //From ForgeHooks#canHarvestBlock
+    public static boolean canHarvestBlock(@Nonnull Block block, @Nonnull EntityPlayer player, @Nonnull IBlockAccess world, @Nonnull BlockPos pos)
+    {
+        IBlockState state = world.getBlockState(pos);
+        state = state.getBlock().getActualState(state, world, pos);
+        if (state.getMaterial().isToolNotRequired())
+        {
+            return true;
+        }
+
+        ItemStack stack = player.getHeldItemMainhand();
+        String tool = block.getHarvestTool(state);
+        if (stack.isEmpty() || tool == null)
+        {
+            return player.canHarvestBlock(state);
+        }
+
+        if (stack.getItemDamage() >= stack.getMaxDamage()) return false;
+
+        int toolLevel = stack.getItem().getHarvestLevel(stack, tool, player, state);
+        if (toolLevel < 0)
+        {
+            return player.canHarvestBlock(state);
+        }
+
+        return toolLevel >= block.getHarvestLevel(state);
+    }
+
+    //Can be harvested with hand? (or in creative)
+    public 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);
+        if (state.getMaterial().isToolNotRequired()) return true;
+
+        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);
+
+        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
+    private static boolean canPlayerEdit(EntityPlayer player, World world, BlockPos pos, ItemStack stack)
+    {
+        if (player.capabilities.allowEdit)
+        {
+            return true;
+        }
+        else
+        {
+            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 ? null : blockIn.getDefaultState().getCollisionBoundingBox(world, pos);
+
+        if (axisalignedbb != Block.NULL_AABB && !world.checkNoEntityCollision(axisalignedbb.offset(pos), placer))
+        {
+            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)
+        {
+            return true;
+        }
+
+        //TODO check config for allow to replace
+        return true;
+        //TODO fix check canPlaceBlockOnSide
+        //return /*iblockstate1.getBlock().isReplaceable(world, pos) &&*/ blockIn.canPlaceBlockOnSide(world, pos, sidePlacedOn);
+    }
+}

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

@@ -1,11 +0,0 @@
-package nl.requios.effortlessbuilding.inventory;
-
-import net.minecraft.entity.player.EntityPlayer;
-import net.minecraft.inventory.Container;
-
-public class RandomizerBagContainer extends Container {
-    @Override
-    public boolean canInteractWith(EntityPlayer playerIn) {
-        return false;
-    }
-}

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

@@ -1,15 +0,0 @@
-package nl.requios.effortlessbuilding.inventory;
-
-import net.minecraft.client.gui.inventory.GuiContainer;
-import net.minecraft.inventory.Container;
-
-public class RandomizerBagGuiContainer extends GuiContainer {
-    public RandomizerBagGuiContainer(Container inventorySlotsIn) {
-        super(inventorySlotsIn);
-    }
-
-    @Override
-    protected void drawGuiContainerBackgroundLayer(float partialTicks, int mouseX, int mouseY) {
-
-    }
-}

src/main/java/nl/requios/effortlessbuilding/inventory/RandomizerBagInventory.java

@@ -1,144 +0,0 @@
-package nl.requios.effortlessbuilding.inventory;
-
-import net.minecraft.item.ItemStack;
-import net.minecraft.nbt.NBTTagCompound;
-import net.minecraft.nbt.NBTTagList;
-import net.minecraftforge.items.IItemHandler;
-
-import javax.annotation.Nonnull;
-
-public class RandomizerBagInventory implements IItemHandler {
-
-    //Reference to NBT data
-    private final ItemStack invItem;
-
-    public static final int INV_SIZE = 5;
-
-    private ItemStack[] inventory = new ItemStack[INV_SIZE];
-
-    public RandomizerBagInventory(ItemStack invItem) {
-        this.invItem = invItem;
-
-        if (!invItem.hasTagCompound()) {
-            invItem.setTagCompound(new NBTTagCompound());
-        }
-
-        readFromNBT(invItem.getTagCompound());
-    }
-
-    @Override
-    public int getSlots() {
-        return INV_SIZE;
-    }
-
-    @Nonnull
-    @Override
-    public ItemStack getStackInSlot(int slot) {
-        return inventory[slot];
-    }
-
-    @Nonnull
-    @Override
-    public ItemStack insertItem(int slot, @Nonnull ItemStack stack, boolean simulate) {
-        ItemStack slotStack = getStackInSlot(slot);
-        if (slotStack.getCount() == 0) {
-            setInventorySlotContents(slot, stack);
-            return null;
-        }
-        if (getSlotLimit(slot) - slotStack.getCount() < stack.getCount()) {
-            //Not enough place remaining, split stack
-            slotStack.setCount(getSlotLimit(slot));
-            onInventoryChanged();
-            stack.copy().shrink(getSlotLimit(slot) - slotStack.getCount());
-            //TODO make proper
-            return stack;
-        } else {
-            slotStack.grow(stack.getCount());
-            onInventoryChanged();
-            return null;
-        }
-    }
-
-    @Nonnull
-    @Override
-    public ItemStack extractItem(int slot, int amount, boolean simulate) {
-        ItemStack stack = getStackInSlot(slot);
-        if (stack == null) return stack;
-
-        if (stack.getCount() > amount) {
-            stack = stack.splitStack(amount);
-            onInventoryChanged();
-        } else {
-            setInventorySlotContents(slot, null);
-        }
-        return stack;
-    }
-
-    @Override
-    public int getSlotLimit(int slot) {
-        return 64;
-    }
-
-    public void onInventoryChanged() {
-        for (int i = 0; i < getSlotLimit(0); ++i) {
-            if (getStackInSlot(i) != null && getStackInSlot(i).getCount() == 0) {
-                inventory[i] = null;
-            }
-        }
-
-        writeToNBT(invItem.getTagCompound());
-    }
-
-    public void setInventorySlotContents(int slot, ItemStack stack) {
-        inventory[slot] = stack;
-
-        if (stack != null && stack.getCount() > getSlotLimit(slot)) {
-            stack.setCount(getSlotLimit(slot));
-        }
-
-        // Don't forget this line or your inventory will not be saved!
-        onInventoryChanged();
-    }
-
-    public void readFromNBT(NBTTagCompound compound) {
-        // Gets the custom taglist we wrote to this compound, if any
-        // 1.7.2+ change to compound.getTagList("ItemInventory", Constants.NBT.TAG_COMPOUND);
-        NBTTagList items = compound.getTagList("ItemInventory", 0);
-
-        for (int i = 0; i < items.tagCount(); ++i) {
-            // 1.7.2+ change to items.getCompoundTagAt(i)
-            NBTTagCompound item = items.getCompoundTagAt(i);
-            int slot = item.getInteger("Slot");
-
-            // Just double-checking that the saved slot index is within our inventory array bounds
-            if (slot >= 0 && slot < getSlots()) {
-                inventory[slot] = new ItemStack(item);
-            }
-        }
-    }
-
-    /**
-     * A custom method to write our inventory to an ItemStack's NBT compound
-     */
-    public void writeToNBT(NBTTagCompound tagcompound) {
-        // Create a new NBT Tag List to store itemstacks as NBT Tags
-        NBTTagList items = new NBTTagList();
-
-        for (int i = 0; i < getSlots(); ++i) {
-            // Only write stacks that contain items
-            if (getStackInSlot(i) != null) {
-                // Make a new NBT Tag Compound to write the itemstack and slot index to
-                NBTTagCompound item = new NBTTagCompound();
-                item.setInteger("Slot", i);
-                // Writes the itemstack in slot(i) to the Tag Compound we just made
-                getStackInSlot(i).writeToNBT(item);
-
-                // add the tag compound to our tag list
-                items.appendTag(item);
-            }
-        }
-        // Add the TagList to the ItemStack's Tag Compound with the name "ItemInventory"
-        tagcompound.setTag("ItemInventory", items);
-    }
-
-}

src/main/java/nl/requios/effortlessbuilding/inventory/RandomizerGuiHandler.java

@@ -1,32 +0,0 @@
-package nl.requios.effortlessbuilding.inventory;
-
-import net.minecraft.entity.player.EntityPlayer;
-import net.minecraft.world.World;
-import net.minecraftforge.fml.common.network.IGuiHandler;
-import nl.requios.effortlessbuilding.EffortlessBuilding;
-import nl.requios.effortlessbuilding.inventory.RandomizerBagContainer;
-
-import javax.annotation.Nullable;
-
-public class RandomizerGuiHandler implements IGuiHandler {
-    @Nullable
-    @Override
-    public Object getServerGuiElement(int ID, EntityPlayer player, World world, int x, int y, int z) {
-        if (ID == EffortlessBuilding.RANDOMIZER_BAG_GUI) {
-            // Use the player's held item to create the inventory
-            return new RandomizerBagContainer();
-        }
-        return null;
-    }
-
-    @Nullable
-    @Override
-    public Object getClientGuiElement(int ID, EntityPlayer player, World world, int x, int y, int z) {
-        if (ID == EffortlessBuilding.RANDOMIZER_BAG_GUI) {
-            // We have to cast the new container as our custom class
-            // and pass in currently held item for the inventory
-            return new RandomizerBagGuiContainer(new RandomizerBagContainer());
-        }
-        return null;
-    }
-}

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

@@ -1,56 +1,185 @@
 package nl.requios.effortlessbuilding.item;
 
+import net.minecraft.block.Block;
+import net.minecraft.block.state.IBlockState;
+import net.minecraft.client.util.ITooltipFlag;
 import net.minecraft.creativetab.CreativeTabs;
 import net.minecraft.entity.player.EntityPlayer;
 import net.minecraft.item.Item;
 import net.minecraft.item.ItemStack;
+import net.minecraft.nbt.NBTTagCompound;
 import net.minecraft.util.ActionResult;
 import net.minecraft.util.EnumActionResult;
 import net.minecraft.util.EnumFacing;
 import net.minecraft.util.EnumHand;
 import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.text.TextFormatting;
 import net.minecraft.world.World;
+import net.minecraftforge.common.capabilities.ICapabilityProvider;
+import net.minecraftforge.items.CapabilityItemHandler;
+import net.minecraftforge.items.IItemHandler;
 import nl.requios.effortlessbuilding.EffortlessBuilding;
+import nl.requios.effortlessbuilding.capability.ItemHandlerCapabilityProvider;
+import nl.requios.effortlessbuilding.helper.SurvivalHelper;
+
+import javax.annotation.Nullable;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Random;
 
 public class ItemRandomizerBag extends Item {
+    public static final int INV_SIZE = 5;
 
-    public ItemRandomizerBag(){
+    private static Random rand = new Random(1337);
+
+    public ItemRandomizerBag() {
         this.setRegistryName(EffortlessBuilding.MODID, "randomizer_bag");
         this.setUnlocalizedName(this.getRegistryName().toString());
 
         this.maxStackSize = 1;
-        this.setCreativeTab(CreativeTabs.DECORATIONS);
+        this.setCreativeTab(CreativeTabs.TOOLS);
     }
 
     @Override
-    public EnumActionResult onItemUse(EntityPlayer player, World worldIn, BlockPos pos, EnumHand hand, EnumFacing facing, float hitX, float hitY, float hitZ) {
+    public EnumActionResult onItemUse(EntityPlayer player, World world, BlockPos pos, EnumHand hand, EnumFacing facing, float hitX, float hitY, float hitZ) {
 
-        if (worldIn.isRemote) return EnumActionResult.PASS;
-        EffortlessBuilding.log(player, "onItemUse");
-
-        if (player.isSneaking()){
+        if (player.isSneaking()) {
+            if (world.isRemote) return EnumActionResult.SUCCESS;
             //Open inventory
-            player.openGui(EffortlessBuilding.instance, EffortlessBuilding.RANDOMIZER_BAG_GUI, worldIn, 0, 0, 0);
+            player.openGui(EffortlessBuilding.instance, EffortlessBuilding.RANDOMIZER_BAG_GUI, world, 0, 0, 0);
         } else {
-            //Place block
+            if (world.isRemote) return EnumActionResult.SUCCESS;
+            //Use item
+            //Get bag inventory
+            ItemStack bag = player.getHeldItem(hand);
+            IItemHandler bagInventory = getBagInventory(bag);
+            if (bagInventory == null)
+                return EnumActionResult.FAIL;
 
+            ItemStack toPlace = pickRandomStack(bagInventory);
+            if (toPlace.isEmpty()) return EnumActionResult.FAIL;
+
+            //Previously: use onItemUse to place block (no synergy)
+            //bag.setItemDamage(toPlace.getMetadata());
+            //toPlace.onItemUse(player, world, pos, hand, facing, hitX, hitY, hitZ);
+
+            if (!world.getBlockState(pos).getBlock().isReplaceable(world, pos)) {
+                pos = pos.offset(facing);
+            }
+
+            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, 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.PASS;
+        return EnumActionResult.SUCCESS;
     }
 
     @Override
-    public ActionResult<ItemStack> onItemRightClick(World worldIn, EntityPlayer playerIn, EnumHand handIn) {
-        if (worldIn.isRemote) return new ActionResult<>(EnumActionResult.PASS, playerIn.getHeldItem(handIn));
-        EffortlessBuilding.log(playerIn, "onItemRightClick");
+    public ActionResult<ItemStack> onItemRightClick(World world, EntityPlayer player, EnumHand hand) {
+        ItemStack bag = player.getHeldItem(hand);
 
-        //Open inventory
-        playerIn.openGui(EffortlessBuilding.instance, EffortlessBuilding.RANDOMIZER_BAG_GUI, worldIn, 0, 0, 0);
+        if (player.isSneaking()) {
+            if (world.isRemote) return new ActionResult<>(EnumActionResult.SUCCESS, bag);
+            //Open inventory
+            player.openGui(EffortlessBuilding.instance, EffortlessBuilding.RANDOMIZER_BAG_GUI, world, 0, 0, 0);
+        } else {
+            //Use item
+            //Get bag inventory
+            IItemHandler bagInventory = getBagInventory(bag);
+            if (bagInventory == null)
+                return new ActionResult<>(EnumActionResult.FAIL, bag);
 
-        return new ActionResult<>(EnumActionResult.PASS, playerIn.getHeldItem(handIn));
+            ItemStack toUse = pickRandomStack(bagInventory);
+            if (toUse.isEmpty()) return new ActionResult<>(EnumActionResult.FAIL, bag);
+
+            return toUse.useItemRightClick(world, player, hand);
+        }
+        return new ActionResult<>(EnumActionResult.PASS, bag);
+    }
+
+    /**
+     * Get the inventory of a randomizer bag by checking the capability.
+     *
+     * @param bag
+     * @return
+     */
+    public static IItemHandler getBagInventory(ItemStack bag) {
+        if (!bag.hasCapability(CapabilityItemHandler.ITEM_HANDLER_CAPABILITY, null)) return null;
+        return bag.getCapability(CapabilityItemHandler.ITEM_HANDLER_CAPABILITY, null);
+    }
+
+    /**
+     * Pick a random slot from the bag. Empty slots will never get chosen.
+     *
+     * @param bagInventory
+     * @return
+     */
+    public static ItemStack pickRandomStack(IItemHandler bagInventory) {
+        //Find how many stacks are non-empty, and save them in a list
+        int nonempty = 0;
+        List<ItemStack> nonEmptyStacks = new ArrayList<>(INV_SIZE);
+        List<Integer> originalSlots = new ArrayList<>(INV_SIZE);
+        for (int i = 0; i < bagInventory.getSlots(); i++) {
+            ItemStack stack = bagInventory.getStackInSlot(i);
+            if (!stack.isEmpty()) {
+                nonempty++;
+                nonEmptyStacks.add(stack);
+                originalSlots.add(i);
+            }
+        }
+
+        if (nonEmptyStacks.size() != originalSlots.size())
+            throw new Error("NonEmptyStacks and OriginalSlots not same size");
+
+        if (nonempty == 0) return ItemStack.EMPTY;
+
+        //Pick random slot
+        int randomSlot = rand.nextInt(nonempty);
+        if (randomSlot < 0 || randomSlot > bagInventory.getSlots()) return ItemStack.EMPTY;
+
+        int originalSlot = originalSlots.get(randomSlot);
+        if (originalSlot < 0 || originalSlot > bagInventory.getSlots()) return ItemStack.EMPTY;
+
+        return bagInventory.getStackInSlot(originalSlot);
+    }
+
+    public static ItemStack findStack(IItemHandler bagInventory, Item item) {
+        for (int i = 0; i < bagInventory.getSlots(); i++) {
+            ItemStack stack = bagInventory.getStackInSlot(i);
+            if (!stack.isEmpty() && stack.getItem() == item) {
+                return stack;
+            }
+        }
+        return ItemStack.EMPTY;
     }
 
     @Override
     public int getMaxItemUseDuration(ItemStack stack) {
         return 1;
     }
+
+    @Nullable
+    @Override
+    public ICapabilityProvider initCapabilities(ItemStack stack, @Nullable NBTTagCompound nbt) {
+        return new ItemHandlerCapabilityProvider();
+    }
+
+    @Override
+    public void addInformation(ItemStack stack, @Nullable World world, List<String> tooltip, ITooltipFlag flag) {
+        tooltip.add(TextFormatting.BLUE + "Rightclick" + TextFormatting.GRAY + " to place a random block");
+        tooltip.add(TextFormatting.BLUE + "Sneak + rightclick" + TextFormatting.GRAY + " to open inventory");
+    }
+
+    @Override
+    public String getUnlocalizedName() {
+        return super.getUnlocalizedName();
+    }
 }

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

@@ -1,9 +1,7 @@
 package nl.requios.effortlessbuilding.network;
 
 import io.netty.buffer.ByteBuf;
-import net.minecraft.client.Minecraft;
 import net.minecraft.entity.player.EntityPlayer;
-import net.minecraft.entity.player.EntityPlayerMP;
 import net.minecraft.util.IThreadListener;
 import net.minecraft.util.math.BlockPos;
 import net.minecraft.util.math.Vec3d;
@@ -13,6 +11,7 @@ import net.minecraftforge.fml.common.network.simpleimpl.MessageContext;
 import nl.requios.effortlessbuilding.Array;
 import nl.requios.effortlessbuilding.BuildSettingsManager;
 import nl.requios.effortlessbuilding.BuildSettingsManager.BuildSettings;
+import nl.requios.effortlessbuilding.EffortlessBuilding;
 import nl.requios.effortlessbuilding.Mirror;
 
 public class BuildSettingsMessage implements IMessage {
@@ -50,6 +49,8 @@ public class BuildSettingsMessage implements IMessage {
         buf.writeInt(a.count);
 
         buf.writeBoolean(buildSettings.doQuickReplace());
+
+        buf.writeInt(buildSettings.getReachUpgrade());
     }
 
     @Override
@@ -72,7 +73,10 @@ public class BuildSettingsMessage implements IMessage {
         Array.ArraySettings a = new Array.ArraySettings(arrayEnabled, arrayOffset, arrayCount);
 
         boolean quickReplace = buf.readBoolean();
-        buildSettings = new BuildSettings(m, a, quickReplace);
+
+        int reachUpgrade = buf.readInt();
+
+        buildSettings = new BuildSettings(m, a, quickReplace, reachUpgrade);
     }
 
     // The params of the IMessageHandler are <REQ, REPLY>
@@ -84,23 +88,17 @@ public class BuildSettingsMessage implements IMessage {
             //EffortlessBuilding.log("message received on " + ctx.side + " side");
 
             // This is the player the packet was sent to the server from
-            EntityPlayer player = (ctx.side.isClient() ? Minecraft.getMinecraft().player : ctx.getServerHandler().player);
+            EntityPlayer player = EffortlessBuilding.proxy.getPlayerEntityFromContext(ctx);
             // The value that was sent
             BuildSettings buildSettings = message.buildSettings;
-            Mirror.MirrorSettings m = buildSettings.getMirrorSettings();
-            Array.ArraySettings a = buildSettings.getArraySettings();
 
             // Sanitize
-            m.radius = Math.min(m.radius, Mirror.MAX_RADIUS);
-            m.radius = Math.max(1, m.radius);
-
-            a.count = Math.min(a.count, Array.MAX_COUNT);
-            a.count = Math.max(0, a.count);
+            BuildSettingsManager.sanitize(buildSettings, player);
 
             // Execute the action on the main server thread by adding it as a scheduled task
-            IThreadListener threadListener = (ctx.side.isClient() ? Minecraft.getMinecraft() : ((EntityPlayerMP) player).getServerWorld());
+            IThreadListener threadListener = EffortlessBuilding.proxy.getThreadListenerFromContext(ctx);
             threadListener.addScheduledTask(() -> {
-                EntityPlayer p = (ctx.side.isClient() ? Minecraft.getMinecraft().player : ctx.getServerHandler().player);
+                EntityPlayer p = EffortlessBuilding.proxy.getPlayerEntityFromContext(ctx);
                 BuildSettingsManager.setBuildSettings(p, buildSettings);
             });
             // No response packet

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

@@ -8,6 +8,7 @@ import net.minecraftforge.fml.common.network.simpleimpl.IMessage;
 import net.minecraftforge.fml.common.network.simpleimpl.IMessageHandler;
 import net.minecraftforge.fml.common.network.simpleimpl.MessageContext;
 import net.minecraftforge.fml.relauncher.Side;
+import nl.requios.effortlessbuilding.EffortlessBuilding;
 import nl.requios.effortlessbuilding.QuickReplace;
 import nl.requios.effortlessbuilding.proxy.ClientProxy;
 
@@ -77,7 +78,7 @@ public class QuickReplaceMessage implements IMessage {
 
             } else {
                 //Received serverside
-                ctx.getServerHandler().player.getServerWorld().addScheduledTask(() -> {
+                EffortlessBuilding.proxy.getThreadListenerFromContext(ctx).addScheduledTask(() -> {
                     QuickReplace.onMessageReceived(ctx.getServerHandler().player, message);
                 });
             }

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

@@ -1,12 +1,15 @@
 package nl.requios.effortlessbuilding.proxy;
 
 import net.minecraft.block.Block;
+import net.minecraft.block.SoundType;
 import net.minecraft.client.Minecraft;
 import net.minecraft.client.entity.EntityPlayerSP;
 import net.minecraft.client.renderer.block.model.ModelResourceLocation;
 import net.minecraft.client.settings.KeyBinding;
 import net.minecraft.entity.player.EntityPlayer;
+import net.minecraft.entity.player.EntityPlayerMP;
 import net.minecraft.item.Item;
+import net.minecraft.util.IThreadListener;
 import net.minecraft.util.math.RayTraceResult;
 import net.minecraft.util.text.TextFormatting;
 import net.minecraftforge.client.event.ModelRegistryEvent;
@@ -39,11 +42,12 @@ public class ClientProxy implements IProxy {
     @Override
     public void init(FMLInitializationEvent event) {
         // register key bindings
-        keyBindings = new KeyBinding[2];
+        keyBindings = new KeyBinding[3];
 
         // instantiate the key bindings
-        keyBindings[0] = new KeyBinding("key.hud.desc", Keyboard.KEY_NUMPAD0, "key.effortlessbuilding.category");
-        keyBindings[1] = new KeyBinding("key.replace.desc", Keyboard.KEY_NUMPAD1, "key.effortlessbuilding.category");
+        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");
 
         // register all the key bindings
         for (int i = 0; i < keyBindings.length; ++i) {
@@ -58,7 +62,12 @@ public class ClientProxy implements IProxy {
 
     @Override
     public EntityPlayer getPlayerEntityFromContext(MessageContext ctx) {
-        return (ctx.side.isClient() ? Minecraft.getMinecraft().player : EffortlessBuilding.proxy.getPlayerEntityFromContext(ctx));
+        return (ctx.side.isClient() ? Minecraft.getMinecraft().player : ctx.getServerHandler().player);
+    }
+
+    @Override
+    public IThreadListener getThreadListenerFromContext(MessageContext ctx) {
+        return (ctx.side.isClient() ? Minecraft.getMinecraft() : ((EntityPlayerMP) getPlayerEntityFromContext(ctx)).getServerWorld());
     }
 
     @Override
@@ -79,25 +88,39 @@ public class ClientProxy implements IProxy {
 
     @SubscribeEvent(priority = EventPriority.NORMAL, receiveCanceled = true)
     public static void onKeyPress(InputEvent.KeyInputEvent event) {
-        // check each enumerated key binding type for pressed and take appropriate action
         EntityPlayerSP player = Minecraft.getMinecraft().player;
+
+        //Remember to send packet to server if necessary
+        //Show HUD
         if (keyBindings[0].isPressed()) {
-            // do stuff for this key binding here
-            // remember you may need to send packet to server
-            if (Minecraft.getMinecraft().currentScreen == null) {
-                Minecraft.getMinecraft().displayGuiScreen(new SettingsGui());
+            //Disabled if max reach is 0, might be set in the config that way.
+            if (BuildSettingsManager.getMaxReach(player) == 0) {
+                EffortlessBuilding.log(player, "Effortless Building is disabled until your reach has increased. Increase your reach with craftable reach upgrades.");
             } else {
-                player.closeScreen();
+                if (Minecraft.getMinecraft().currentScreen == null) {
+                    Minecraft.getMinecraft().displayGuiScreen(new SettingsGui());
+                } else {
+                    player.closeScreen();
+                }
             }
         }
+
+        //QuickReplace toggle
         if (keyBindings[1].isPressed()) {
-            // do stuff for this key binding here
-            // remember you may need to send packet to server
             BuildSettingsManager.BuildSettings buildSettings = BuildSettingsManager.getBuildSettings(player);
             buildSettings.setQuickReplace(!buildSettings.doQuickReplace());
             EffortlessBuilding.log(player, "Set "+ TextFormatting.GOLD + "Quick Replace " + TextFormatting.RESET + (buildSettings.doQuickReplace() ? "on" : "off"));
             EffortlessBuilding.packetHandler.sendToServer(new BuildSettingsMessage(buildSettings));
         }
+
+        //Creative/survival mode toggle
+        if (keyBindings[2].isPressed()) {
+            if (player.isCreative()) {
+                player.sendChatMessage("/gamemode 0");
+            } else {
+                player.sendChatMessage("/gamemode 1");
+            }
+        }
     }
 
     @SubscribeEvent
@@ -105,6 +128,7 @@ public class ClientProxy implements IProxy {
         if (event.phase != TickEvent.Phase.START) return;
 
         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;
 
         if (currentLookAt == null) {

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

@@ -1,6 +1,7 @@
 package nl.requios.effortlessbuilding.proxy;
 
 import net.minecraft.entity.player.EntityPlayer;
+import net.minecraft.util.IThreadListener;
 import net.minecraftforge.fml.common.event.FMLInitializationEvent;
 import net.minecraftforge.fml.common.event.FMLPostInitializationEvent;
 import net.minecraftforge.fml.common.event.FMLPreInitializationEvent;
@@ -33,8 +34,10 @@ public interface IProxy
     /**
      * Returns a side-appropriate EntityPlayer for use during message handling.
      *
-     * @param parContext the context
+     * @param ctx the context
      * @return the player entity from context
      */
-    EntityPlayer getPlayerEntityFromContext(MessageContext parContext);
+    EntityPlayer getPlayerEntityFromContext(MessageContext ctx);
+
+    IThreadListener getThreadListenerFromContext(MessageContext ctx);
 }

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

@@ -1,14 +1,22 @@
 package nl.requios.effortlessbuilding.proxy;
 
+import net.minecraft.client.entity.AbstractClientPlayer;
 import net.minecraft.entity.player.EntityPlayer;
+import net.minecraft.entity.player.EntityPlayerMP;
+import net.minecraft.util.IThreadListener;
 import net.minecraftforge.fml.common.event.FMLInitializationEvent;
 import net.minecraftforge.fml.common.event.FMLPostInitializationEvent;
 import net.minecraftforge.fml.common.event.FMLPreInitializationEvent;
 import net.minecraftforge.fml.common.event.FMLServerStartingEvent;
 import net.minecraftforge.fml.common.network.simpleimpl.MessageContext;
+import net.minecraftforge.fml.relauncher.Side;
+import nl.requios.effortlessbuilding.EffortlessBuilding;
+import nl.requios.effortlessbuilding.network.BuildSettingsMessage;
+import nl.requios.effortlessbuilding.network.QuickReplaceMessage;
 
 public class ServerProxy implements IProxy
 {
+    //Only physical server! Singleplayer server is seen as clientproxy
     @Override
     public void preInit(FMLPreInitializationEvent event)
     {
@@ -35,4 +43,9 @@ public class ServerProxy implements IProxy
     {
         return ctx.getServerHandler().player;
     }
+
+    @Override
+    public IThreadListener getThreadListenerFromContext(MessageContext ctx) {
+        return ((EntityPlayerMP) getPlayerEntityFromContext(ctx)).getServerWorld();
+    }
 }

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

@@ -1,5 +1,6 @@
 key.effortlessbuilding.category=Effortless Building
-key.hud.desc=Open Settings
-key.replace.desc=Switch Replace Mode
+key.effortlessbuilding.hud.desc=Open Settings
+key.effortlessbuilding.replace.desc=Toggle QuickReplace
+key.effortlessbuilding.creative.desc=Toggle Survival/Creative Mode
 
 item.effortlessbuilding:randomizer_bag.name=Randomizer Bag

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

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

src/main/resources/assets/effortlessbuilding/recipes/randomizer_bag.json

@@ -0,0 +1,20 @@
+{
+    "type": "minecraft:crafting_shaped",
+    "pattern": [
+        " # ",
+        "#O#",
+        " # "
+    ],
+    "key": {
+        "#": {
+            "item": "minecraft:leather"
+        },
+		"O": {
+            "item": "minecraft:planks",
+			"data": 32767
+        }
+    },
+    "result": {
+        "item": "effortlessbuilding:randomizer_bag"
+    }
+}

src/main/resources/mcmod.info

@@ -2,10 +2,10 @@
 {
   "modid": "effortlessbuilding",
   "name": "Effortless Building",
-  "description": "Makes building easier by providing tools like mirrors, arrays, quickreplace and a block randomizer.",
+  "description": "Makes building easier by providing tools like mirrors, arrays, QuickReplace and a block randomizer. For survival and creative mode.",
   "version": "${version}",
   "mcversion": "${mcversion}",
-  "url": "https://requios.nl/",
+  "url": "https://minecraft.curseforge.com/projects/effortless-building",
   "updateUrl": "",
   "authorList": ["Requios"],
   "credits": "",