Revert "Upstream mixin"

sources/pom.xml

@@ -136,41 +136,16 @@
         </dependency>
 
         <!-- Akarin -->
-        <dependency>
-            <groupId>org.ow2.asm</groupId>
-            <artifactId>asm</artifactId>
-            <version>9.2</version>
-        </dependency>
-        <dependency>
-            <groupId>org.ow2.asm</groupId>
-            <artifactId>asm-tree</artifactId>
-            <version>9.2</version>
-        </dependency>
-        <dependency>
-            <groupId>org.ow2.asm</groupId>
-            <artifactId>asm-analysis</artifactId>
-            <version>9.2</version>
-        </dependency>
-        <dependency>
-            <groupId>org.ow2.asm</groupId>
-            <artifactId>asm-util</artifactId>
-            <version>9.2</version>
-        </dependency>
-        <dependency>
-            <groupId>org.ow2.asm</groupId>
-            <artifactId>asm-commons</artifactId>
-            <version>9.2</version>
-        </dependency>
-        <dependency>
-            <groupId>io.akarin</groupId>
-            <artifactId>mixin</artifactId>
-            <version>0.8.5</version>
-        </dependency>
         <dependency>
             <groupId>io.akarin</groupId>
             <artifactId>legacylauncher</artifactId>
             <version>1.26</version>
         </dependency>
+        <dependency>
+            <groupId>org.spongepowered</groupId>
+            <artifactId>mixin</artifactId>
+            <version>0.7.11-SNAPSHOT</version>
+        </dependency>
         <dependency>
             <groupId>com.googlecode.concurrent-locks</groupId>
             <artifactId>concurrent-locks</artifactId>
@@ -312,18 +287,6 @@
                                         <exclude>org/apache/logging/log4j/**</exclude>
                                     </excludes>
                                 </filter>
-                                <filter>
-                                    <artifact>io.akarin:legacylauncher:**</artifact>
-                                    <excludes>
-                                        <exclude>org/objectweb/**</exclude>
-                                    </excludes>
-                                </filter>
-                                <filter>
-                                    <artifact>com.destroystokyo.paper:paper-api:**</artifact>
-                                    <excludes>
-                                        <exclude>org/objectweb/**</exclude>
-                                    </excludes>
-                                </filter>
                                 <filter>
                                     <artifact>*:*</artifact>
                                     <excludes>

sources/src/main/java/io/akarin/server/mixin/optimization/MixinBlockChest.java

@@ -1,46 +0,0 @@
-package io.akarin.server.mixin.optimization;
-
-import java.util.Iterator;
-
-import org.spongepowered.asm.mixin.Mixin;
-import org.spongepowered.asm.mixin.Overwrite;
-import org.spongepowered.asm.mixin.Shadow;
-
-import net.minecraft.server.Block;
-import net.minecraft.server.BlockChest;
-import net.minecraft.server.BlockPosition;
-import net.minecraft.server.EnumDirection;
-import net.minecraft.server.IBlockData;
-import net.minecraft.server.Material;
-import net.minecraft.server.World;
-
-@Mixin(value = BlockChest.class, remap = false)
-public abstract class MixinBlockChest extends Block {
-	protected MixinBlockChest(Material material) {
-		super(material);
-	}
-	@Shadow public abstract IBlockData e(World world, BlockPosition blockposition, IBlockData iblockdata);
-	@Overwrite
-	public void onPlace(World world, BlockPosition blockposition, IBlockData iblockdata) {
-		//((BlockChest)(Object)this).e(world, blockposition, iblockdata);
-		e(world, blockposition, iblockdata);
-        Iterator<EnumDirection> iterator = EnumDirection.EnumDirectionLimit.HORIZONTAL.iterator();
-
-        while (iterator.hasNext()) {
-            EnumDirection enumdirection = iterator.next();
-            BlockPosition blockposition1 = blockposition.shift(enumdirection);
-            // NeonPaper start - Dont load chunks for chests
-            final IBlockData iblockdata1 = world.isLoaded(blockposition1) ? world.getType(blockposition1) : null;
-            if (iblockdata1 ==  null) {
-                continue;
-            }
-            // NeonPaper end
-
-            if (iblockdata1.getBlock() == this) {
-            	//((BlockChest)(Object)this).e(world, blockposition1, iblockdata1);
-            	e(world, blockposition1, iblockdata1);
-            }
-        }
-
-    }
-}

sources/src/main/java/io/akarin/server/mixin/optimization/MixinBlockStationary.java

@@ -1,30 +0,0 @@
-package io.akarin.server.mixin.optimization;
-
-import org.spongepowered.asm.mixin.Mixin;
-import org.spongepowered.asm.mixin.Overwrite;
-
-import net.minecraft.server.BlockFluids;
-import net.minecraft.server.BlockPosition;
-import net.minecraft.server.BlockStationary;
-import net.minecraft.server.IBlockData;
-import net.minecraft.server.Material;
-import net.minecraft.server.World;
-
-@Mixin(value = BlockStationary.class, remap = false)
-public abstract class MixinBlockStationary extends BlockFluids {
-    protected MixinBlockStationary(Material material) {
-		super(material);
-	}
-    @Overwrite
-	private boolean d(World world, BlockPosition blockposition) {
-        if (blockposition.getY() >= 0 && blockposition.getY() < 256) {
-            IBlockData blockData = world.getTypeIfLoaded(blockposition);
-
-            if (blockData != null) {
-                return blockData.getMaterial().isBurnable();
-            }
-        }
-
-        return false;
-    }
-}

sources/src/main/java/io/akarin/server/mixin/optimization/MixinContainerHorse.java

@@ -1,23 +0,0 @@
-package io.akarin.server.mixin.optimization;
-
-import org.spongepowered.asm.mixin.Mixin;
-import org.spongepowered.asm.mixin.Overwrite;
-import org.spongepowered.asm.mixin.Shadow;
-
-import net.minecraft.server.Container;
-import net.minecraft.server.ContainerHorse;
-import net.minecraft.server.Entity;
-import net.minecraft.server.EntityHorseAbstract;
-import net.minecraft.server.EntityHuman;
-import net.minecraft.server.IInventory;
-
-@Mixin(value = ContainerHorse.class, remap = false)
-public abstract class MixinContainerHorse extends Container {
-	@Shadow private IInventory a;
-	@Shadow private EntityHorseAbstract f;
-	
-	@Overwrite
-    public boolean canUse(EntityHuman entityhuman) {
-		return this.a.a(entityhuman) && this.f.isAlive() && this.f.valid && this.f.g((Entity) entityhuman) < 8.0F; // NeonPaper! - Fix MC-161754
-    }
-}

sources/src/main/java/io/akarin/server/mixin/optimization/MixinEntity.java

@@ -7,7 +7,6 @@ import org.spongepowered.asm.mixin.Shadow;
 import net.minecraft.server.AxisAlignedBB;
 import net.minecraft.server.Entity;
 import net.minecraft.server.Material;
-import net.minecraft.server.MathHelper;
 import net.minecraft.server.MinecraftServer;
 import net.minecraft.server.World;
 
@@ -16,14 +15,6 @@ public abstract class MixinEntity {
     @Shadow public World world;
     @Shadow public abstract AxisAlignedBB getBoundingBox();
     
-    @Shadow public boolean noclip;
-    @Shadow public float R;
-    @Shadow public double locX;
-    @Shadow public double locZ;
-    @Shadow public abstract boolean x(Entity entity);
-    @Shadow public abstract boolean isVehicle();
-    @Shadow public abstract void f(double d0, double d1, double d2);
-    
     private boolean isInLava;
     private int lastLavaCheck = Integer.MIN_VALUE;
     
@@ -40,36 +31,4 @@ public abstract class MixinEntity {
         }
         return this.isInLava;
     }
-    @Overwrite 
-    public void collide(Entity entity) {
-		if (entity.noclip || this.noclip || this.x(entity)) return; // NeonPaper - Test this earlier
-        double d0 = entity.locX - this.locX;
-        double d1 = entity.locZ - this.locZ;
-        double d2 = MathHelper.a(d0, d1);
-
-        if (d2 >= 0.009999999776482582D) {
-            d2 = (double) MathHelper.sqrt(d2);
-            d0 /= d2;
-            d1 /= d2;
-            double d3 = 1.0D / d2;
-
-            if (d3 > 1.0D) {
-                d3 = 1.0D;
-            }
-
-            d0 *= d3;
-            d1 *= d3;
-            d0 *= 0.05000000074505806D;
-            d1 *= 0.05000000074505806D;
-            d0 *= (double) (1.0F - this.R);
-            d1 *= (double) (1.0F - this.R);
-            if (!this.isVehicle()) {
-                this.f(-d0, 0.0D, -d1);
-            }
-
-            if (!entity.isVehicle()) {
-                entity.f(d0, 0.0D, d1);
-            }
-        }
-    }
 }

sources/src/main/java/io/akarin/server/mixin/optimization/MixinMathHelper.java

@@ -1,51 +0,0 @@
-package io.akarin.server.mixin.optimization;
-
-import org.spongepowered.asm.mixin.Mixin;
-import org.spongepowered.asm.mixin.Overwrite;
-
-import net.minecraft.server.MathHelper;
-
-@Mixin(value = MathHelper.class, remap = false)
-public abstract class MixinMathHelper {
-	private static final int[] SINE_TABLE_INT = new int[16384 + 1];
-	private static final float SINE_TABLE_MIDPOINT;
-	@Overwrite
-	public static float sin(float f) {
-        return lookup((int) (f * 10430.38) & 0xFFFF);
-    }
-	@Overwrite
-    public static float cos(float f) {
-        return lookup((int) (f * 10430.38 + 16384.0) & 0xFFFF);
-    }
-	private static float lookup(int index) {
-        if (index == 32768) {
-            return SINE_TABLE_MIDPOINT;
-        }
-        int neg = (index & 0x8000) << 16;
-        int mask = (index << 17) >> 31;
-        int pos = (0x8001 & mask) + (index ^ mask);
-        pos &= 0x7fff;
-        return Float.intBitsToFloat(SINE_TABLE_INT[pos] ^ neg);
-    }
-	static {
-		int i;
-		
-		final float[] SINE_TABLE = new float[65536];
-		for (i = 0; i < 65536; ++i) {
-            SINE_TABLE[i] = (float) Math.sin((double) i * 3.141592653589793D * 2.0D / 65536.0D);
-        }
-        for (i = 0; i < SINE_TABLE_INT.length; i++) {
-            SINE_TABLE_INT[i] = Float.floatToRawIntBits(SINE_TABLE[i]);
-        }
-
-        SINE_TABLE_MIDPOINT = SINE_TABLE[SINE_TABLE.length / 2];
-        for (i = 0; i < SINE_TABLE.length; i++) {
-            float expected = SINE_TABLE[i];
-            float value = lookup(i);
-
-            if (expected != value) {
-                throw new IllegalArgumentException(String.format("LUT error at index %d (expected: %s, found: %s)", i, expected, value));
-            }
-        }
-	}
-}

sources/src/main/java/net/minecraft/server/BlockChest.java

@@ -0,0 +1,479 @@
+package net.minecraft.server;
+
+import java.util.Iterator;
+import javax.annotation.Nullable;
+
+public class BlockChest extends BlockTileEntity {
+
+    public static final BlockStateDirection FACING = BlockFacingHorizontal.FACING;
+    protected static final AxisAlignedBB b = new AxisAlignedBB(0.0625D, 0.0D, 0.0D, 0.9375D, 0.875D, 0.9375D);
+    protected static final AxisAlignedBB c = new AxisAlignedBB(0.0625D, 0.0D, 0.0625D, 0.9375D, 0.875D, 1.0D);
+    protected static final AxisAlignedBB d = new AxisAlignedBB(0.0D, 0.0D, 0.0625D, 0.9375D, 0.875D, 0.9375D);
+    protected static final AxisAlignedBB e = new AxisAlignedBB(0.0625D, 0.0D, 0.0625D, 1.0D, 0.875D, 0.9375D);
+    protected static final AxisAlignedBB f = new AxisAlignedBB(0.0625D, 0.0D, 0.0625D, 0.9375D, 0.875D, 0.9375D);
+    public final BlockChest.Type g;
+
+    protected BlockChest(BlockChest.Type blockchest_type) {
+        super(Material.WOOD);
+        this.w(this.blockStateList.getBlockData().set(BlockChest.FACING, EnumDirection.NORTH));
+        this.g = blockchest_type;
+        this.a(blockchest_type == BlockChest.Type.TRAP ? CreativeModeTab.d : CreativeModeTab.c);
+    }
+
+    public boolean b(IBlockData iblockdata) {
+        return false;
+    }
+
+    public boolean c(IBlockData iblockdata) {
+        return false;
+    }
+
+    public EnumRenderType a(IBlockData iblockdata) {
+        return EnumRenderType.ENTITYBLOCK_ANIMATED;
+    }
+
+    public AxisAlignedBB b(IBlockData iblockdata, IBlockAccess iblockaccess, BlockPosition blockposition) {
+        return iblockaccess.getType(blockposition.north()).getBlock() == this ? BlockChest.b : (iblockaccess.getType(blockposition.south()).getBlock() == this ? BlockChest.c : (iblockaccess.getType(blockposition.west()).getBlock() == this ? BlockChest.d : (iblockaccess.getType(blockposition.east()).getBlock() == this ? BlockChest.e : BlockChest.f)));
+    }
+
+    public void onPlace(World world, BlockPosition blockposition, IBlockData iblockdata) {
+        this.e(world, blockposition, iblockdata);
+        Iterator iterator = EnumDirection.EnumDirectionLimit.HORIZONTAL.iterator();
+
+        while (iterator.hasNext()) {
+            EnumDirection enumdirection = (EnumDirection) iterator.next();
+            BlockPosition blockposition1 = blockposition.shift(enumdirection);
+            // NeonPaper start - Dont load chunks for chests
+            final IBlockData iblockdata1 = world.isLoaded(blockposition1) ? world.getType(blockposition1) : null;
+            if (iblockdata1 ==  null) {
+                continue;
+            }
+            // NeonPaper end
+
+            if (iblockdata1.getBlock() == this) {
+                this.e(world, blockposition1, iblockdata1);
+            }
+        }
+
+    }
+
+    public IBlockData getPlacedState(World world, BlockPosition blockposition, EnumDirection enumdirection, float f, float f1, float f2, int i, EntityLiving entityliving) {
+        return this.getBlockData().set(BlockChest.FACING, entityliving.getDirection());
+    }
+
+    public void postPlace(World world, BlockPosition blockposition, IBlockData iblockdata, EntityLiving entityliving, ItemStack itemstack) {
+        EnumDirection enumdirection = EnumDirection.fromType2(MathHelper.floor((double) (entityliving.yaw * 4.0F / 360.0F) + 0.5D) & 3).opposite();
+
+        iblockdata = iblockdata.set(BlockChest.FACING, enumdirection);
+        BlockPosition blockposition1 = blockposition.north();
+        BlockPosition blockposition2 = blockposition.south();
+        BlockPosition blockposition3 = blockposition.west();
+        BlockPosition blockposition4 = blockposition.east();
+        boolean flag = this == world.getType(blockposition1).getBlock();
+        boolean flag1 = this == world.getType(blockposition2).getBlock();
+        boolean flag2 = this == world.getType(blockposition3).getBlock();
+        boolean flag3 = this == world.getType(blockposition4).getBlock();
+
+        if (!flag && !flag1 && !flag2 && !flag3) {
+            world.setTypeAndData(blockposition, iblockdata, 3);
+        } else if (enumdirection.k() == EnumDirection.EnumAxis.X && (flag || flag1)) {
+            if (flag) {
+                world.setTypeAndData(blockposition1, iblockdata, 3);
+            } else {
+                world.setTypeAndData(blockposition2, iblockdata, 3);
+            }
+
+            world.setTypeAndData(blockposition, iblockdata, 3);
+        } else if (enumdirection.k() == EnumDirection.EnumAxis.Z && (flag2 || flag3)) {
+            if (flag2) {
+                world.setTypeAndData(blockposition3, iblockdata, 3);
+            } else {
+                world.setTypeAndData(blockposition4, iblockdata, 3);
+            }
+
+            world.setTypeAndData(blockposition, iblockdata, 3);
+        }
+
+        if (itemstack.hasName()) {
+            TileEntity tileentity = world.getTileEntity(blockposition);
+
+            if (tileentity instanceof TileEntityChest) {
+                ((TileEntityChest) tileentity).setCustomName(itemstack.getName());
+            }
+        }
+
+    }
+
+    public IBlockData e(World world, BlockPosition blockposition, IBlockData iblockdata) {
+        if (world.isClientSide) {
+            return iblockdata;
+        } else {
+            IBlockData iblockdata1 = world.getType(blockposition.north());
+            IBlockData iblockdata2 = world.getType(blockposition.south());
+            IBlockData iblockdata3 = world.getType(blockposition.west());
+            IBlockData iblockdata4 = world.getType(blockposition.east());
+            EnumDirection enumdirection = (EnumDirection) iblockdata.get(BlockChest.FACING);
+
+            if (iblockdata1.getBlock() != this && iblockdata2.getBlock() != this) {
+                boolean flag = iblockdata1.b();
+                boolean flag1 = iblockdata2.b();
+
+                if (iblockdata3.getBlock() == this || iblockdata4.getBlock() == this) {
+                    BlockPosition blockposition1 = iblockdata3.getBlock() == this ? blockposition.west() : blockposition.east();
+                    IBlockData iblockdata5 = world.getType(blockposition1.north());
+                    IBlockData iblockdata6 = world.getType(blockposition1.south());
+
+                    enumdirection = EnumDirection.SOUTH;
+                    EnumDirection enumdirection1;
+
+                    if (iblockdata3.getBlock() == this) {
+                        enumdirection1 = (EnumDirection) iblockdata3.get(BlockChest.FACING);
+                    } else {
+                        enumdirection1 = (EnumDirection) iblockdata4.get(BlockChest.FACING);
+                    }
+
+                    if (enumdirection1 == EnumDirection.NORTH) {
+                        enumdirection = EnumDirection.NORTH;
+                    }
+
+                    if ((flag || iblockdata5.b()) && !flag1 && !iblockdata6.b()) {
+                        enumdirection = EnumDirection.SOUTH;
+                    }
+
+                    if ((flag1 || iblockdata6.b()) && !flag && !iblockdata5.b()) {
+                        enumdirection = EnumDirection.NORTH;
+                    }
+                }
+            } else {
+                BlockPosition blockposition2 = iblockdata1.getBlock() == this ? blockposition.north() : blockposition.south();
+                IBlockData iblockdata7 = world.getType(blockposition2.west());
+                IBlockData iblockdata8 = world.getType(blockposition2.east());
+
+                enumdirection = EnumDirection.EAST;
+                EnumDirection enumdirection2;
+
+                if (iblockdata1.getBlock() == this) {
+                    enumdirection2 = (EnumDirection) iblockdata1.get(BlockChest.FACING);
+                } else {
+                    enumdirection2 = (EnumDirection) iblockdata2.get(BlockChest.FACING);
+                }
+
+                if (enumdirection2 == EnumDirection.WEST) {
+                    enumdirection = EnumDirection.WEST;
+                }
+
+                if ((iblockdata3.b() || iblockdata7.b()) && !iblockdata4.b() && !iblockdata8.b()) {
+                    enumdirection = EnumDirection.EAST;
+                }
+
+                if ((iblockdata4.b() || iblockdata8.b()) && !iblockdata3.b() && !iblockdata7.b()) {
+                    enumdirection = EnumDirection.WEST;
+                }
+            }
+
+            iblockdata = iblockdata.set(BlockChest.FACING, enumdirection);
+            world.setTypeAndData(blockposition, iblockdata, 3);
+            return iblockdata;
+        }
+    }
+
+    public IBlockData f(World world, BlockPosition blockposition, IBlockData iblockdata) {
+        EnumDirection enumdirection = null;
+        Iterator iterator = EnumDirection.EnumDirectionLimit.HORIZONTAL.iterator();
+
+        while (iterator.hasNext()) {
+            EnumDirection enumdirection1 = (EnumDirection) iterator.next();
+            IBlockData iblockdata1 = world.getType(blockposition.shift(enumdirection1));
+
+            if (iblockdata1.getBlock() == this) {
+                return iblockdata;
+            }
+
+            if (iblockdata1.b()) {
+                if (enumdirection != null) {
+                    enumdirection = null;
+                    break;
+                }
+
+                enumdirection = enumdirection1;
+            }
+        }
+
+        if (enumdirection != null) {
+            return iblockdata.set(BlockChest.FACING, enumdirection.opposite());
+        } else {
+            EnumDirection enumdirection2 = (EnumDirection) iblockdata.get(BlockChest.FACING);
+
+            if (world.getType(blockposition.shift(enumdirection2)).b()) {
+                enumdirection2 = enumdirection2.opposite();
+            }
+
+            if (world.getType(blockposition.shift(enumdirection2)).b()) {
+                enumdirection2 = enumdirection2.e();
+            }
+
+            if (world.getType(blockposition.shift(enumdirection2)).b()) {
+                enumdirection2 = enumdirection2.opposite();
+            }
+
+            return iblockdata.set(BlockChest.FACING, enumdirection2);
+        }
+    }
+
+    public boolean canPlace(World world, BlockPosition blockposition) {
+        int i = 0;
+        BlockPosition blockposition1 = blockposition.west();
+        BlockPosition blockposition2 = blockposition.east();
+        BlockPosition blockposition3 = blockposition.north();
+        BlockPosition blockposition4 = blockposition.south();
+
+        if (world.getType(blockposition1).getBlock() == this) {
+            if (this.d(world, blockposition1)) {
+                return false;
+            }
+
+            ++i;
+        }
+
+        if (world.getType(blockposition2).getBlock() == this) {
+            if (this.d(world, blockposition2)) {
+                return false;
+            }
+
+            ++i;
+        }
+
+        if (world.getType(blockposition3).getBlock() == this) {
+            if (this.d(world, blockposition3)) {
+                return false;
+            }
+
+            ++i;
+        }
+
+        if (world.getType(blockposition4).getBlock() == this) {
+            if (this.d(world, blockposition4)) {
+                return false;
+            }
+
+            ++i;
+        }
+
+        return i <= 1;
+    }
+
+    private boolean d(World world, BlockPosition blockposition) {
+        if (world.getType(blockposition).getBlock() != this) {
+            return false;
+        } else {
+            Iterator iterator = EnumDirection.EnumDirectionLimit.HORIZONTAL.iterator();
+
+            EnumDirection enumdirection;
+
+            do {
+                if (!iterator.hasNext()) {
+                    return false;
+                }
+
+                enumdirection = (EnumDirection) iterator.next();
+            } while (world.getType(blockposition.shift(enumdirection)).getBlock() != this);
+
+            return true;
+        }
+    }
+
+    public void a(IBlockData iblockdata, World world, BlockPosition blockposition, Block block, BlockPosition blockposition1) {
+        super.a(iblockdata, world, blockposition, block, blockposition1);
+        TileEntity tileentity = world.getTileEntity(blockposition);
+
+        if (tileentity instanceof TileEntityChest) {
+            tileentity.invalidateBlockCache();
+        }
+
+    }
+
+    public void remove(World world, BlockPosition blockposition, IBlockData iblockdata) {
+        TileEntity tileentity = world.getTileEntity(blockposition);
+
+        if (tileentity instanceof IInventory) {
+            InventoryUtils.dropInventory(world, blockposition, (IInventory) tileentity);
+            world.updateAdjacentComparators(blockposition, this);
+        }
+
+        super.remove(world, blockposition, iblockdata);
+    }
+
+    public boolean interact(World world, BlockPosition blockposition, IBlockData iblockdata, EntityHuman entityhuman, EnumHand enumhand, EnumDirection enumdirection, float f, float f1, float f2) {
+        if (world.isClientSide) {
+            return true;
+        } else {
+            ITileInventory itileinventory = this.getInventory(world, blockposition);
+
+            if (itileinventory != null) {
+                entityhuman.openContainer(itileinventory);
+                if (this.g == BlockChest.Type.BASIC) {
+                    entityhuman.b(StatisticList.aa);
+                } else if (this.g == BlockChest.Type.TRAP) {
+                    entityhuman.b(StatisticList.U);
+                }
+            }
+
+            return true;
+        }
+    }
+
+    @Nullable
+    public ITileInventory getInventory(World world, BlockPosition blockposition) {
+        return this.a(world, blockposition, false);
+    }
+
+    @Nullable
+    public ITileInventory a(World world, BlockPosition blockposition, boolean flag) {
+        TileEntity tileentity = world.getTileEntity(blockposition);
+
+        if (!(tileentity instanceof TileEntityChest)) {
+            return null;
+        } else {
+            Object object = (TileEntityChest) tileentity;
+
+            if (!flag && this.e(world, blockposition)) {
+                return null;
+            } else {
+                Iterator iterator = EnumDirection.EnumDirectionLimit.HORIZONTAL.iterator();
+
+                while (iterator.hasNext()) {
+                    EnumDirection enumdirection = (EnumDirection) iterator.next();
+                    BlockPosition blockposition1 = blockposition.shift(enumdirection);
+                    // Paper start - don't load chunks if the other side of the chest is in unloaded chunk
+                    final IBlockData type = world.getTypeIfLoaded(blockposition1); // Paper
+                    if (type ==  null) {
+                        continue;
+                    }
+                    Block block = type.getBlock();
+                    // Paper end
+
+                    if (block == this) {
+                        if (!flag && this.e(world, blockposition1)) { // Paper - check for allowBlocked flag - MC-99321
+                            return null;
+                        }
+
+                        TileEntity tileentity1 = world.getTileEntity(blockposition1);
+
+                        if (tileentity1 instanceof TileEntityChest) {
+                            if (enumdirection != EnumDirection.WEST && enumdirection != EnumDirection.NORTH) {
+                                object = new InventoryLargeChest("container.chestDouble", (ITileInventory) object, (TileEntityChest) tileentity1);
+                            } else {
+                                object = new InventoryLargeChest("container.chestDouble", (TileEntityChest) tileentity1, (ITileInventory) object);
+                            }
+                        }
+                    }
+                }
+
+                return (ITileInventory) object;
+            }
+        }
+    }
+
+    public TileEntity a(World world, int i) {
+        return new TileEntityChest();
+    }
+
+    public boolean isPowerSource(IBlockData iblockdata) {
+        return this.g == BlockChest.Type.TRAP;
+    }
+
+    public int b(IBlockData iblockdata, IBlockAccess iblockaccess, BlockPosition blockposition, EnumDirection enumdirection) {
+        if (!iblockdata.m()) {
+            return 0;
+        } else {
+            int i = 0;
+            TileEntity tileentity = iblockaccess.getTileEntity(blockposition);
+
+            if (tileentity instanceof TileEntityChest) {
+                i = ((TileEntityChest) tileentity).l;
+            }
+
+            return MathHelper.clamp(i, 0, 15);
+        }
+    }
+
+    public int c(IBlockData iblockdata, IBlockAccess iblockaccess, BlockPosition blockposition, EnumDirection enumdirection) {
+        return enumdirection == EnumDirection.UP ? iblockdata.a(iblockaccess, blockposition, enumdirection) : 0;
+    }
+
+    private boolean e(World world, BlockPosition blockposition) {
+        return this.i(world, blockposition) || this.j(world, blockposition);
+    }
+
+    private boolean i(World world, BlockPosition blockposition) {
+        return world.getType(blockposition.up()).l();
+    }
+
+    private boolean j(World world, BlockPosition blockposition) {
+        // Paper start - Option ti dsiable chest cat detection
+        if (world.paperConfig.disableChestCatDetection) {
+            return false;
+        }
+        // Paper end
+        Iterator iterator = world.a(EntityOcelot.class, new AxisAlignedBB((double) blockposition.getX(), (double) (blockposition.getY() + 1), (double) blockposition.getZ(), (double) (blockposition.getX() + 1), (double) (blockposition.getY() + 2), (double) (blockposition.getZ() + 1))).iterator();
+
+        EntityOcelot entityocelot;
+
+        do {
+            if (!iterator.hasNext()) {
+                return false;
+            }
+
+            Entity entity = (Entity) iterator.next();
+
+            entityocelot = (EntityOcelot) entity;
+        } while (!entityocelot.isSitting());
+
+        return true;
+    }
+
+    public boolean isComplexRedstone(IBlockData iblockdata) {
+        return true;
+    }
+
+    public int c(IBlockData iblockdata, World world, BlockPosition blockposition) {
+        return Container.b((IInventory) this.getInventory(world, blockposition));
+    }
+
+    public IBlockData fromLegacyData(int i) {
+        EnumDirection enumdirection = EnumDirection.fromType1(i);
+
+        if (enumdirection.k() == EnumDirection.EnumAxis.Y) {
+            enumdirection = EnumDirection.NORTH;
+        }
+
+        return this.getBlockData().set(BlockChest.FACING, enumdirection);
+    }
+
+    public int toLegacyData(IBlockData iblockdata) {
+        return ((EnumDirection) iblockdata.get(BlockChest.FACING)).a();
+    }
+
+    public IBlockData a(IBlockData iblockdata, EnumBlockRotation enumblockrotation) {
+        return iblockdata.set(BlockChest.FACING, enumblockrotation.a((EnumDirection) iblockdata.get(BlockChest.FACING)));
+    }
+
+    public IBlockData a(IBlockData iblockdata, EnumBlockMirror enumblockmirror) {
+        return iblockdata.a(enumblockmirror.a((EnumDirection) iblockdata.get(BlockChest.FACING)));
+    }
+
+    protected BlockStateList getStateList() {
+        return new BlockStateList(this, new IBlockState[] { BlockChest.FACING});
+    }
+
+    public EnumBlockFaceShape a(IBlockAccess iblockaccess, IBlockData iblockdata, BlockPosition blockposition, EnumDirection enumdirection) {
+        return EnumBlockFaceShape.UNDEFINED;
+    }
+
+    public static enum Type {
+
+        BASIC, TRAP;
+
+        private Type() {}
+    }
+}

sources/src/main/java/net/minecraft/server/BlockStationary.java

@@ -0,0 +1,118 @@
+package net.minecraft.server;
+
+import java.util.Random;
+
+import org.bukkit.craftbukkit.event.CraftEventFactory;  // CraftBukkit
+
+public class BlockStationary extends BlockFluids {
+
+    protected BlockStationary(Material material) {
+        super(material);
+        this.a(false);
+        if (material == Material.LAVA) {
+            this.a(true);
+        }
+
+    }
+
+    public void a(IBlockData iblockdata, World world, BlockPosition blockposition, Block block, BlockPosition blockposition1) {
+        if (!this.e(world, blockposition, iblockdata)) {
+            this.f(world, blockposition, iblockdata);
+        }
+
+    }
+
+    private void f(World world, BlockPosition blockposition, IBlockData iblockdata) {
+        BlockFlowing blockflowing = a(this.material);
+
+        world.setTypeAndData(blockposition, blockflowing.getBlockData().set(BlockStationary.LEVEL, iblockdata.get(BlockStationary.LEVEL)), 2);
+        world.a(blockposition, (Block) blockflowing, this.a(world));
+    }
+
+    public void b(World world, BlockPosition blockposition, IBlockData iblockdata, Random random) {
+        if (this.material == Material.LAVA) {
+            if (world.getGameRules().getBoolean("doFireTick")) {
+                int i = random.nextInt(3);
+
+                if (i > 0) {
+                    BlockPosition blockposition1 = blockposition;
+
+                    for (int j = 0; j < i; ++j) {
+                        blockposition1 = blockposition1.a(random.nextInt(3) - 1, 1, random.nextInt(3) - 1);
+                        if (blockposition1.getY() >= 0 && blockposition1.getY() < 256 && !world.isLoaded(blockposition1)) {
+                            return;
+                        }
+
+                        Block block = world.getType(blockposition1).getBlock();
+
+                        if (block.material == Material.AIR) {
+                            if (this.c(world, blockposition1)) {
+                                 // CraftBukkit start - Prevent lava putting something on fire
+                                if (world.getType(blockposition1) != Blocks.FIRE) {
+                                    if (CraftEventFactory.callBlockIgniteEvent(world, blockposition1.getX(), blockposition1.getY(), blockposition1.getZ(), blockposition.getX(), blockposition.getY(), blockposition.getZ()).isCancelled()) {
+                                        continue;
+                                    }
+                                }
+                                // CraftBukkit end
+                                world.setTypeUpdate(blockposition1, Blocks.FIRE.getBlockData());
+                                return;
+                            }
+                        } else if (block.material.isSolid()) {
+                            return;
+                        }
+                    }
+                } else {
+                    for (int k = 0; k < 3; ++k) {
+                        BlockPosition blockposition2 = blockposition.a(random.nextInt(3) - 1, 0, random.nextInt(3) - 1);
+
+                        if (blockposition2.getY() >= 0 && blockposition2.getY() < 256 && !world.isLoaded(blockposition2)) {
+                            return;
+                        }
+
+                        if (world.isEmpty(blockposition2.up()) && this.d(world, blockposition2)) {
+                            // CraftBukkit start - Prevent lava putting something on fire
+                            BlockPosition up = blockposition2.up();
+                            if (world.getType(up) != Blocks.FIRE) {
+                                if (CraftEventFactory.callBlockIgniteEvent(world, up.getX(), up.getY(), up.getZ(), blockposition.getX(), blockposition.getY(), blockposition.getZ()).isCancelled()) {
+                                    continue;
+                                }
+                            }
+                            // CraftBukkit end
+                            world.setTypeUpdate(blockposition2.up(), Blocks.FIRE.getBlockData());
+                        }
+                    }
+                }
+
+            }
+        }
+    }
+
+    protected boolean c(World world, BlockPosition blockposition) {
+        EnumDirection[] aenumdirection = EnumDirection.values();
+        int i = aenumdirection.length;
+
+        for (int j = 0; j < i; ++j) {
+            EnumDirection enumdirection = aenumdirection[j];
+
+            if (this.d(world, blockposition.shift(enumdirection))) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    private boolean d(World world, BlockPosition blockposition) {
+        // Dionysus start - improve fire spread checks
+        if (blockposition.getY() >= 0 && blockposition.getY() < 256) {
+            IBlockData blockData = world.getTypeIfLoaded(blockposition);
+
+            if (blockData != null) {
+                return blockData.getMaterial().isBurnable();
+            }
+        }
+
+        return false;
+        // Dionysus end
+    }
+}

sources/src/main/java/net/minecraft/server/ContainerHorse.java

@@ -0,0 +1,115 @@
+package net.minecraft.server;
+
+// CraftBukkit start
+import org.bukkit.craftbukkit.inventory.CraftInventoryView;
+import org.bukkit.inventory.InventoryView;
+// CraftBukkit end
+
+public class ContainerHorse extends Container {
+
+    private final IInventory a;
+    private final EntityHorseAbstract f;
+
+    // CraftBukkit start
+    org.bukkit.craftbukkit.inventory.CraftInventoryView bukkitEntity;
+    PlayerInventory player;
+
+    @Override
+    public InventoryView getBukkitView() {
+        if (bukkitEntity != null) {
+            return bukkitEntity;
+        }
+
+        return bukkitEntity = new CraftInventoryView(player.player.getBukkitEntity(), a.getOwner().getInventory(), this);
+    }
+
+    public ContainerHorse(IInventory iinventory, final IInventory iinventory1, final EntityHorseAbstract entityhorseabstract, EntityHuman entityhuman) {
+        player = (PlayerInventory) iinventory;
+        // CraftBukkit end
+        this.a = iinventory1;
+        this.f = entityhorseabstract;
+        boolean flag = true;
+
+        iinventory1.startOpen(entityhuman);
+        boolean flag1 = true;
+
+        this.a(new Slot(iinventory1, 0, 8, 18) {
+            public boolean isAllowed(ItemStack itemstack) {
+                return itemstack.getItem() == Items.SADDLE && !this.hasItem() && entityhorseabstract.dF();
+            }
+        });
+        this.a(new Slot(iinventory1, 1, 8, 36) {
+            public boolean isAllowed(ItemStack itemstack) {
+                return entityhorseabstract.f(itemstack);
+            }
+
+            public int getMaxStackSize() {
+                return 1;
+            }
+        });
+        int i;
+        int j;
+
+        if (entityhorseabstract instanceof EntityHorseChestedAbstract && ((EntityHorseChestedAbstract) entityhorseabstract).isCarryingChest()) {
+            for (i = 0; i < 3; ++i) {
+                for (j = 0; j < ((EntityHorseChestedAbstract) entityhorseabstract).dt(); ++j) {
+                    this.a(new Slot(iinventory1, 2 + j + i * ((EntityHorseChestedAbstract) entityhorseabstract).dt(), 80 + j * 18, 18 + i * 18));
+                }
+            }
+        }
+
+        for (i = 0; i < 3; ++i) {
+            for (j = 0; j < 9; ++j) {
+                this.a(new Slot(iinventory, j + i * 9 + 9, 8 + j * 18, 102 + i * 18 + -18));
+            }
+        }
+
+        for (i = 0; i < 9; ++i) {
+            this.a(new Slot(iinventory, i, 8 + i * 18, 142));
+        }
+
+    }
+
+    public boolean canUse(EntityHuman entityhuman) {
+		return this.a.a(entityhuman) && this.f.isAlive() && this.f.valid && this.f.g((Entity) entityhuman) < 8.0F; // NeonPaper! - Fix MC-161754
+    }
+
+    public ItemStack shiftClick(EntityHuman entityhuman, int i) {
+        ItemStack itemstack = ItemStack.a;
+        Slot slot = (Slot) this.slots.get(i);
+
+        if (slot != null && slot.hasItem()) {
+            ItemStack itemstack1 = slot.getItem();
+
+            itemstack = itemstack1.cloneItemStack();
+            if (i < this.a.getSize()) {
+                if (!this.a(itemstack1, this.a.getSize(), this.slots.size(), true)) {
+                    return ItemStack.a;
+                }
+            } else if (this.getSlot(1).isAllowed(itemstack1) && !this.getSlot(1).hasItem()) {
+                if (!this.a(itemstack1, 1, 2, false)) {
+                    return ItemStack.a;
+                }
+            } else if (this.getSlot(0).isAllowed(itemstack1)) {
+                if (!this.a(itemstack1, 0, 1, false)) {
+                    return ItemStack.a;
+                }
+            } else if (this.a.getSize() <= 2 || !this.a(itemstack1, 2, this.a.getSize(), false)) {
+                return ItemStack.a;
+            }
+
+            if (itemstack1.isEmpty()) {
+                slot.set(ItemStack.a);
+            } else {
+                slot.f();
+            }
+        }
+
+        return itemstack;
+    }
+
+    public void b(EntityHuman entityhuman) {
+        super.b(entityhuman);
+        this.a.closeContainer(entityhuman);
+    }
+}

sources/src/main/java/net/minecraft/server/Entity.java

@@ -1387,8 +1387,7 @@ public abstract class Entity implements ICommandListener, KeyedObject { // Paper
     public void d(EntityHuman entityhuman) {}
 
     public void collide(Entity entity) {
-        if (!this.x(entity)) {
+		if (entity.noclip || this.noclip || this.x(entity)) return; // NeonPaper - Test this earlier
-            if (!entity.noclip && !this.noclip) {
         double d0 = entity.locX - this.locX;
         double d1 = entity.locZ - this.locZ;
         double d2 = MathHelper.a(d0, d1);
@@ -1417,9 +1416,6 @@ public abstract class Entity implements ICommandListener, KeyedObject { // Paper
                 entity.f(d0, 0.0D, d1);
             }
         }
-
-            }
-        }
     }
 
     public void f(double d0, double d1, double d2) {

sources/src/main/java/net/minecraft/server/EntityMushroomCow.java

@@ -1,29 +1,20 @@
-package io.akarin.server.mixin.optimization;
+package net.minecraft.server;
 
-import org.bukkit.event.player.PlayerShearEntityEvent;
+import javax.annotation.Nullable;
-import org.spongepowered.asm.mixin.Mixin;
+import org.bukkit.event.player.PlayerShearEntityEvent; // CraftBukkit
-import org.spongepowered.asm.mixin.Overwrite;
 
-import net.minecraft.server.Blocks;
+public class EntityMushroomCow extends EntityCow {
-import net.minecraft.server.EntityCow;
-import net.minecraft.server.EntityHuman;
-import net.minecraft.server.EntityItem;
-import net.minecraft.server.EntityMushroomCow;
-import net.minecraft.server.EnumHand;
-import net.minecraft.server.EnumParticle;
-import net.minecraft.server.ItemStack;
-import net.minecraft.server.Items;
-import net.minecraft.server.SoundEffects;
-import net.minecraft.server.World;
 
-@Mixin(value = EntityMushroomCow.class, remap = false)
+    public EntityMushroomCow(World world) {
-public abstract class MixinEntityMushroomCow extends EntityCow {
-
-	public MixinEntityMushroomCow(World world) {
         super(world);
+        this.setSize(0.9F, 1.4F);
+        this.bA = Blocks.MYCELIUM;
+    }
+
+    public static void c(DataConverterManager dataconvertermanager) {
+        EntityInsentient.a(dataconvertermanager, EntityMushroomCow.class);
     }
 
-	@Overwrite
     public boolean a(EntityHuman entityhuman, EnumHand enumhand) {
         ItemStack itemstack = entityhuman.b(enumhand);
 
@@ -74,4 +65,20 @@ public abstract class MixinEntityMushroomCow extends EntityCow {
         }
     }
 
+    public EntityMushroomCow c(EntityAgeable entityageable) {
+        return new EntityMushroomCow(this.world);
+    }
+
+    @Nullable
+    protected MinecraftKey J() {
+        return LootTables.M;
+    }
+
+    public EntityCow b(EntityAgeable entityageable) {
+        return this.c(entityageable);
+    }
+
+    public EntityAgeable createChild(EntityAgeable entityageable) {
+        return this.c(entityageable);
+    }
 }

sources/src/main/java/net/minecraft/server/Explosion.java

@@ -1,68 +1,58 @@
-package io.akarin.server.mixin.optimization;
+package net.minecraft.server;
-
-import java.util.ArrayList;
-import java.util.Iterator;
-import java.util.List;
-import java.util.Map;
-import java.util.Optional;
-import java.util.Random;
-
-import org.bukkit.Location;
-import org.bukkit.craftbukkit.event.CraftEventFactory;
-import org.bukkit.event.block.BlockExplodeEvent;
-import org.bukkit.event.entity.EntityExplodeEvent;
-import org.spongepowered.asm.mixin.Mixin;
-import org.spongepowered.asm.mixin.Overwrite;
-import org.spongepowered.asm.mixin.Shadow;
 
 import com.google.common.collect.Lists;
-
+import com.google.common.collect.Maps;
 import it.unimi.dsi.fastutil.longs.LongOpenHashSet;
-import net.minecraft.server.AxisAlignedBB;
-import net.minecraft.server.Block;
-import net.minecraft.server.BlockPosition;
-import net.minecraft.server.Blocks;
-import net.minecraft.server.Chunk;
-import net.minecraft.server.ChunkSection;
-import net.minecraft.server.DamageSource;
-import net.minecraft.server.EnchantmentProtection;
-import net.minecraft.server.Entity;
-import net.minecraft.server.EntityFallingBlock;
-import net.minecraft.server.EntityHuman;
-import net.minecraft.server.EntityLiving;
-import net.minecraft.server.EntityTNTPrimed;
-import net.minecraft.server.EnumParticle;
-import net.minecraft.server.Explosion;
-import net.minecraft.server.IBlockData;
-import net.minecraft.server.Material;
-import net.minecraft.server.MathHelper;
-import net.minecraft.server.SoundCategory;
-import net.minecraft.server.SoundEffects;
-import net.minecraft.server.Vec3D;
-import net.minecraft.server.World;
-import net.minecraft.server.IEntitySelector;
 
-@Mixin(value = Explosion.class, remap = false)
+import javax.annotation.Nullable;
-public abstract class MixinExplosion {
+import java.util.*;
-	@Shadow private boolean a;
+import java.util.function.Predicate;
-	@Shadow private boolean b;
+
-	@Shadow private Random c = new Random();
+// CraftBukkit start
-	@Shadow private World world;
+import org.bukkit.craftbukkit.event.CraftEventFactory;
-	@Shadow private double posX;
+import org.bukkit.event.entity.EntityExplodeEvent;
-	@Shadow private double posY;
+import org.bukkit.Location;
-	@Shadow private double posZ;
+import org.bukkit.event.block.BlockExplodeEvent;
-	@Shadow public Entity source;
+// CraftBukkit end
-	@Shadow private float size;
+
-	@Shadow private Map<EntityHuman, Vec3D> k;
+public class Explosion {
-	@Shadow public boolean wasCanceled = false; // CraftBukkit - add field
+
-	@Shadow private List<BlockPosition> blocks;
+    private final boolean a;
+    private final boolean b;
+    private final Random c = new Random();
+    private final World world;
+    private final double posX;
+    private final double posY;
+    private final double posZ;
+    public final Entity source;
+    private final float size;
+    private final ArrayList<BlockPosition> blocks = Lists.newArrayList();
+    private final Map<EntityHuman, Vec3D> k = Maps.newHashMap();
+    public boolean wasCanceled = false; // CraftBukkit - add field
+	
+    // Dionysus start
     private final BlockPosition.MutableBlockPosition cachedPos = new BlockPosition.MutableBlockPosition();
+    // The chunk coordinate of the most recently stepped through block.
     private int prevChunkX = Integer.MIN_VALUE;
     private int prevChunkZ = Integer.MIN_VALUE;
-    private Chunk prevChunk;
-    private static final com.google.common.base.Predicate<Entity> hitPredicate = entity -> IEntitySelector.d.apply(entity) && !entity.dead; // Dionysus - Paper - don't hit dead entities
 
-    @Overwrite
+    // The chunk belonging to prevChunkPos.
+    private Chunk prevChunk;
+
+    private static final com.google.common.base.Predicate<Entity> hitPredicate = entity -> IEntitySelector.d.apply(entity) && !entity.dead; // Dionysus - Paper - don't hit dead entities
+    // Dionysus end
+
+    public Explosion(World world, Entity entity, double d0, double d1, double d2, float f, boolean flag, boolean flag1) {
+        this.world = world;
+        this.source = entity;
+        this.size = (float) Math.max(f, 0.0); // CraftBukkit - clamp bad values
+        this.posX = d0;
+        this.posY = d1;
+        this.posZ = d2;
+        this.a = flag;
+        this.b = flag1;
+    }
+
     public void a() {
         // CraftBukkit start
         if (this.size < 0.1F) {
@@ -104,9 +94,9 @@ public abstract class MixinExplosion {
         // We can now iterate back over the set of positions we modified and re-build BlockPos objects from them
         // This will only allocate as many objects as there are in the set, where otherwise we would allocate them
         // each step of a every ray.
-        ((ArrayList<BlockPosition>)this.blocks).ensureCapacity(touched.size());
+        blocks.ensureCapacity(touched.size());
         for (Long longPos : touched) {
-        	this.blocks.add(BlockPosition.fromLong(longPos));
+            blocks.add(BlockPosition.fromLong(longPos));
         }
         float f3 = this.size * 2.0F;
 
@@ -143,7 +133,7 @@ public abstract class MixinExplosion {
                         // entity.damageEntity(DamageSource.explosion(this), (float) ((int) ((d13 * d13 + d13) / 2.0D * 7.0D * (double) f3 + 1.0D)));
                         CraftEventFactory.entityDamage = source;
                         entity.forceExplosionKnockback = false;
-                        boolean wasDamaged = entity.damageEntity(DamageSource.explosion((Explosion)(Object)this), (float) ((int) ((d13 * d13 + d13) / 2.0D * 7.0D * (double) f3 + 1.0D)));
+                        boolean wasDamaged = entity.damageEntity(DamageSource.explosion(this), (float) ((int) ((d13 * d13 + d13) / 2.0D * 7.0D * (double) f3 + 1.0D)));
                         CraftEventFactory.entityDamage = null;
                         if (!wasDamaged && !(entity instanceof EntityTNTPrimed || entity instanceof EntityFallingBlock) && !entity.forceExplosionKnockback) {
                             continue;
@@ -171,6 +161,7 @@ public abstract class MixinExplosion {
         }
 
     }
+	
     private void performRayCast(Random random, double vecX, double vecY, double vecZ, LongOpenHashSet touched) {
         double dist = Math.sqrt((vecX * vecX) + (vecY * vecY) + (vecZ * vecZ));
 
@@ -223,6 +214,7 @@ public abstract class MixinExplosion {
             stepZ += normZ;
         }
     }
+
     /**
      * Called for every step made by a ray being cast by an explosion.
      *
@@ -239,7 +231,7 @@ public abstract class MixinExplosion {
         // Early-exit if the y-coordinate is out of bounds.
         if (cachedPos.isInvalidYLocation()) {
             if (iblockdata.getMaterial() != Material.AIR) {
-                float blastResistance = this.source != null ? this.source.a((Explosion)(Object)this, this.world, cachedPos, iblockdata) : iblockdata.getBlock().a((Entity) null);
+                float blastResistance = this.source != null ? this.source.a(this, this.world, cachedPos, iblockdata) : iblockdata.getBlock().a((Entity) null);
                 return (blastResistance + 0.3F) * 0.3F;
             }
             return 0.0F;
@@ -276,7 +268,7 @@ public abstract class MixinExplosion {
                 // If the block state is air, it cannot have fluid or any kind of resistance, so just leave
                 if (blockState.getBlock() != Blocks.AIR) {
                     // Get the explosion resistance like vanilla
-                    blastResistance = Optional.of(this.source != null ? this.source.a((Explosion)(Object)this, this.world, cachedPos, iblockdata) : iblockdata.getBlock().a((Entity) null));
+                    blastResistance = Optional.of(this.source != null ? this.source.a(this, this.world, cachedPos, iblockdata) : iblockdata.getBlock().a((Entity) null));
                 }
             }
         }
@@ -290,14 +282,16 @@ public abstract class MixinExplosion {
         // of positions to destroy
         float reducedStrength = strength - totalResistance;
         if (reducedStrength > 0.0F && (this.a || iblockdata.getMaterial() != Material.AIR)) {
-            if ((this.source == null || this.source.a((Explosion)(Object)this, this.world, cachedPos, iblockdata, reducedStrength)) && cachedPos.getY() < 256 && cachedPos.getY() >= 0) {
+            if ((this.source == null || this.source.a(this, this.world, cachedPos, iblockdata, reducedStrength)) && cachedPos.getY() < 256 && cachedPos.getY() >= 0) {
                 touched.add(cachedPos.asLong());
             }
         }
 
         return totalResistance;
     }
-    @Overwrite
+    // Dionysus end
+
+
     public void a(boolean flag) {
         this.world.a((EntityHuman) null, this.posX, this.posY, this.posZ, SoundEffects.bV, SoundCategory.BLOCKS, 4.0F, (1.0F + (this.world.random.nextFloat() - this.world.random.nextFloat()) * 0.2F) * 0.7F);
         if (this.size >= 2.0F && this.b) {
@@ -306,7 +300,7 @@ public abstract class MixinExplosion {
             this.world.addParticle(EnumParticle.EXPLOSION_LARGE, this.posX, this.posY, this.posZ, 1.0D, 0.0D, 0.0D);
         }
 
-        Iterator<BlockPosition> iterator;
+        Iterator iterator;
         BlockPosition blockposition;
 
         if (this.b) {
@@ -344,7 +338,7 @@ public abstract class MixinExplosion {
 
             this.blocks.clear();
 
-            ((ArrayList<BlockPosition>)this.blocks).ensureCapacity(bukkitBlocks.size());
+            this.blocks.ensureCapacity(bukkitBlocks.size());
             for (org.bukkit.block.Block bblock : bukkitBlocks) {
                 BlockPosition coords = new BlockPosition(bblock.getX(), bblock.getY(), bblock.getZ());
                 blocks.add(coords);
@@ -386,13 +380,13 @@ public abstract class MixinExplosion {
                 }
 
                 if (iblockdata.getMaterial() != Material.AIR) {
-                    if (block.a((Explosion)(Object)this)) {
+                    if (block.a(this)) {
                         // CraftBukkit - add yield
                         block.dropNaturally(this.world, blockposition, this.world.getType(blockposition), yield, 0);
                     }
 
                     this.world.setTypeAndData(blockposition, Blocks.AIR.getBlockData(), 3);
-                    block.wasExploded(this.world, blockposition, (Explosion)(Object)this);
+                    block.wasExploded(this.world, blockposition, this);
                 }
             }
         }
@@ -404,7 +398,7 @@ public abstract class MixinExplosion {
                 blockposition = (BlockPosition) iterator.next();
                 if (this.world.getType(blockposition).getMaterial() == Material.AIR && this.world.getType(blockposition.down()).b() && this.c.nextInt(3) == 0) {
                     // CraftBukkit start - Ignition by explosion
-                    if (!CraftEventFactory.callBlockIgniteEvent(this.world, blockposition.getX(), blockposition.getY(), blockposition.getZ(), (Explosion)(Object)this).isCancelled()) {
+                    if (!CraftEventFactory.callBlockIgniteEvent(this.world, blockposition.getX(), blockposition.getY(), blockposition.getZ(), this).isCancelled()) {
                         this.world.setTypeUpdate(blockposition, Blocks.FIRE.getBlockData());
                     }
                     // CraftBukkit end
@@ -413,14 +407,98 @@ public abstract class MixinExplosion {
         }
 
     }
-    @Shadow protected abstract float getBlockDensity(Vec3D vec3d, AxisAlignedBB aabb);
+
-    //private float getBlockDensity(Vec3D vec3d, AxisAlignedBB aabb) {
+    public Map<EntityHuman, Vec3D> b() {
-        //if (!this.world.paperConfig.optimizeExplosions) {
+        return this.k;
-        //    return this.world.a(vec3d, aabb);
+    }
-        //}
+
-        //CacheKey key = new CacheKey((Explosion)(Object)this, aabb);
+    @Nullable
-        //return this.world.explosionDensityCache.computeIfAbsent(key, k1 -> this.world.a(vec3d, aabb));
+    public EntityLiving getSource() {
-    //}
+        // CraftBukkit start - obtain Fireball shooter for explosion tracking
+        return this.source == null ? null : (this.source instanceof EntityTNTPrimed ? ((EntityTNTPrimed) this.source).getSource() : (this.source instanceof EntityLiving ? (EntityLiving) this.source : (this.source instanceof EntityFireball ? ((EntityFireball) this.source).shooter : null)));
+        // CraftBukkit end
+    }
+
+    public void clearBlocks() {
+        this.blocks.clear();
+    }
+
+    public List<BlockPosition> getBlocks() {
+        return this.blocks;
+    }
+
+    // Paper start - Optimize explosions
+    private float getBlockDensity(Vec3D vec3d, AxisAlignedBB aabb) {
+        if (!this.world.paperConfig.optimizeExplosions) {
+            return this.world.a(vec3d, aabb);
+        }
+        CacheKey key = new CacheKey(this, aabb);
+        return this.world.explosionDensityCache.computeIfAbsent(key, k1 -> this.world.a(vec3d, aabb));
+    }
+
+    static class CacheKey {
+        private final World world;
+        private final double posX, posY, posZ;
+        private final double minX, minY, minZ;
+        private final double maxX, maxY, maxZ;
+
+        public CacheKey(Explosion explosion, AxisAlignedBB aabb) {
+            this.world = explosion.world;
+            this.posX = explosion.posX;
+            this.posY = explosion.posY;
+            this.posZ = explosion.posZ;
+            this.minX = aabb.a;
+            this.minY = aabb.b;
+            this.minZ = aabb.c;
+            this.maxX = aabb.d;
+            this.maxY = aabb.e;
+            this.maxZ = aabb.f;
+        }
+
+        @Override
+        public boolean equals(Object o) {
+            if (this == o) return true;
+            if (o == null || getClass() != o.getClass()) return false;
+
+            CacheKey cacheKey = (CacheKey) o;
+
+            if (Double.compare(cacheKey.posX, posX) != 0) return false;
+            if (Double.compare(cacheKey.posY, posY) != 0) return false;
+            if (Double.compare(cacheKey.posZ, posZ) != 0) return false;
+            if (Double.compare(cacheKey.minX, minX) != 0) return false;
+            if (Double.compare(cacheKey.minY, minY) != 0) return false;
+            if (Double.compare(cacheKey.minZ, minZ) != 0) return false;
+            if (Double.compare(cacheKey.maxX, maxX) != 0) return false;
+            if (Double.compare(cacheKey.maxY, maxY) != 0) return false;
+            if (Double.compare(cacheKey.maxZ, maxZ) != 0) return false;
+            return world.equals(cacheKey.world);
+        }
+
+        @Override
+        public int hashCode() {
+            int result;
+            long temp;
+            result = world.hashCode();
+            temp = Double.doubleToLongBits(posX);
+            result = 31 * result + (int) (temp ^ (temp >>> 32));
+            temp = Double.doubleToLongBits(posY);
+            result = 31 * result + (int) (temp ^ (temp >>> 32));
+            temp = Double.doubleToLongBits(posZ);
+            result = 31 * result + (int) (temp ^ (temp >>> 32));
+            temp = Double.doubleToLongBits(minX);
+            result = 31 * result + (int) (temp ^ (temp >>> 32));
+            temp = Double.doubleToLongBits(minY);
+            result = 31 * result + (int) (temp ^ (temp >>> 32));
+            temp = Double.doubleToLongBits(minZ);
+            result = 31 * result + (int) (temp ^ (temp >>> 32));
+            temp = Double.doubleToLongBits(maxX);
+            result = 31 * result + (int) (temp ^ (temp >>> 32));
+            temp = Double.doubleToLongBits(maxY);
+            result = 31 * result + (int) (temp ^ (temp >>> 32));
+            temp = Double.doubleToLongBits(maxZ);
+            result = 31 * result + (int) (temp ^ (temp >>> 32));
+            return result;
+        }
+    }
     // Paper end
-    // Dionysus end
 }

sources/src/main/java/net/minecraft/server/MathHelper.java

@@ -0,0 +1,370 @@
+package net.minecraft.server;
+
+import java.util.Random;
+import java.util.UUID;
+
+public class MathHelper {
+	
+    public static final float a = c(2.0F);
+    private static final int[] SINE_TABLE_INT = new int[16384 + 1];
+    private static final float SINE_TABLE_MIDPOINT;
+    private static final Random c = new Random();
+    private static final int[] d;
+    private static final double e;
+    private static final double[] f;
+    private static final double[] g;
+	
+    public static float sin(float f) {
+        return lookup((int) (f * 10430.38) & 0xFFFF);
+    }
+	
+    public static float cos(float f) {
+        return lookup((int) (f * 10430.38 + 16384.0) & 0xFFFF);
+    }
+	
+	private static float lookup(int index) {
+        if (index == 32768) {
+            return SINE_TABLE_MIDPOINT;
+        }
+        int neg = (index & 0x8000) << 16;
+        int mask = (index << 17) >> 31;
+        int pos = (0x8001 & mask) + (index ^ mask);
+        pos &= 0x7fff;
+        return Float.intBitsToFloat(SINE_TABLE_INT[pos] ^ neg);
+    }
+
+    public static float c(float f) {
+        return (float) Math.sqrt((double) f);
+    }
+
+    public static float sqrt(double d0) {
+        return (float) Math.sqrt(d0);
+    }
+
+    public static int d(float f) {
+        int i = (int) f;
+
+        return f < (float) i ? i - 1 : i;
+    }
+
+    public static int floor(double d0) {
+        int i = (int) d0;
+
+        return d0 < (double) i ? i - 1 : i;
+    }
+
+    public static long d(double d0) {
+        long i = (long) d0;
+
+        return d0 < (double) i ? i - 1L : i;
+    }
+
+    public static float e(float f) {
+        return f >= 0.0F ? f : -f;
+    }
+
+    public static int a(int i) {
+        return i >= 0 ? i : -i;
+    }
+
+    public static int f(float f) {
+        int i = (int) f;
+
+        return f > (float) i ? i + 1 : i;
+    }
+
+    public static int f(double d0) {
+        int i = (int) d0;
+
+        return d0 > (double) i ? i + 1 : i;
+    }
+
+    public static int clamp(int i, int j, int k) {
+        return i < j ? j : (i > k ? k : i);
+    }
+
+    public static float a(float f, float f1, float f2) {
+        return f < f1 ? f1 : (f > f2 ? f2 : f);
+    }
+
+    public static double a(double d0, double d1, double d2) {
+        return d0 < d1 ? d1 : (d0 > d2 ? d2 : d0);
+    }
+
+    public static double b(double d0, double d1, double d2) {
+        return d2 < 0.0D ? d0 : (d2 > 1.0D ? d1 : d0 + (d1 - d0) * d2);
+    }
+
+    public static double a(double d0, double d1) {
+        if (d0 < 0.0D) {
+            d0 = -d0;
+        }
+
+        if (d1 < 0.0D) {
+            d1 = -d1;
+        }
+
+        return d0 > d1 ? d0 : d1;
+    }
+
+    public static int nextInt(Random random, int i, int j) {
+        return i >= j ? i : random.nextInt(j - i + 1) + i;
+    }
+
+    public static float a(Random random, float f, float f1) {
+        return f >= f1 ? f : random.nextFloat() * (f1 - f) + f;
+    }
+
+    public static double a(Random random, double d0, double d1) {
+        return d0 >= d1 ? d0 : random.nextDouble() * (d1 - d0) + d0;
+    }
+
+    public static double a(long[] along) {
+        long i = 0L;
+        long[] along1 = along;
+        int j = along.length;
+
+        for (int k = 0; k < j; ++k) {
+            long l = along1[k];
+
+            i += l;
+        }
+
+        return (double) i / (double) along.length;
+    }
+
+    public static float g(float f) {
+        f %= 360.0F;
+        if (f >= 180.0F) {
+            f -= 360.0F;
+        }
+
+        if (f < -180.0F) {
+            f += 360.0F;
+        }
+
+        return f;
+    }
+
+    public static double g(double d0) {
+        d0 %= 360.0D;
+        if (d0 >= 180.0D) {
+            d0 -= 360.0D;
+        }
+
+        if (d0 < -180.0D) {
+            d0 += 360.0D;
+        }
+
+        return d0;
+    }
+
+    public static int b(int i) {
+        i %= 360;
+        if (i >= 180) {
+            i -= 360;
+        }
+
+        if (i < -180) {
+            i += 360;
+        }
+
+        return i;
+    }
+
+    public static int a(String s, int i) {
+        try {
+            return Integer.parseInt(s);
+        } catch (Throwable throwable) {
+            return i;
+        }
+    }
+
+    public static int a(String s, int i, int j) {
+        return Math.max(j, a(s, i));
+    }
+
+    public static double a(String s, double d0) {
+        try {
+            return Double.parseDouble(s);
+        } catch (Throwable throwable) {
+            return d0;
+        }
+    }
+
+    public static double a(String s, double d0, double d1) {
+        return Math.max(d1, a(s, d0));
+    }
+
+    public static int c(int i) {
+        int j = i - 1;
+
+        j |= j >> 1;
+        j |= j >> 2;
+        j |= j >> 4;
+        j |= j >> 8;
+        j |= j >> 16;
+        return j + 1;
+    }
+
+    private static boolean g(int i) {
+        return i != 0 && (i & i - 1) == 0;
+    }
+
+    public static int d(int i) {
+        i = g(i) ? i : c(i);
+        return MathHelper.d[(int) ((long) i * 125613361L >> 27) & 31];
+    }
+
+    public static int e(int i) {
+        return d(i) - (g(i) ? 0 : 1);
+    }
+
+    public static int c(int i, int j) {
+        if (j == 0) {
+            return 0;
+        } else if (i == 0) {
+            return j;
+        } else {
+            if (i < 0) {
+                j *= -1;
+            }
+
+            int k = i % j;
+
+            return k == 0 ? i : i + j - k;
+        }
+    }
+
+    public static long c(int i, int j, int k) {
+        long l = (long) (i * 3129871) ^ (long) k * 116129781L ^ (long) j;
+
+        l = l * l * 42317861L + l * 11L;
+        return l;
+    }
+
+    public static UUID a(Random random) {
+        long i = random.nextLong() & -61441L | 16384L;
+        long j = random.nextLong() & 4611686018427387903L | Long.MIN_VALUE;
+
+        return new UUID(i, j);
+    }
+
+    public static UUID a() {
+        return a(MathHelper.c);
+    }
+
+    public static double c(double d0, double d1, double d2) {
+        return (d0 - d1) / (d2 - d1);
+    }
+
+    public static double c(double d0, double d1) {
+        double d2 = d1 * d1 + d0 * d0;
+
+        if (Double.isNaN(d2)) {
+            return Double.NaN;
+        } else {
+            boolean flag = d0 < 0.0D;
+
+            if (flag) {
+                d0 = -d0;
+            }
+
+            boolean flag1 = d1 < 0.0D;
+
+            if (flag1) {
+                d1 = -d1;
+            }
+
+            boolean flag2 = d0 > d1;
+            double d3;
+
+            if (flag2) {
+                d3 = d1;
+                d1 = d0;
+                d0 = d3;
+            }
+
+            d3 = i(d2);
+            d1 *= d3;
+            d0 *= d3;
+            double d4 = MathHelper.e + d0;
+            int i = (int) Double.doubleToRawLongBits(d4);
+            double d5 = MathHelper.f[i];
+            double d6 = MathHelper.g[i];
+            double d7 = d4 - MathHelper.e;
+            double d8 = d0 * d6 - d1 * d7;
+            double d9 = (6.0D + d8 * d8) * d8 * 0.16666666666666666D;
+            double d10 = d5 + d9;
+
+            if (flag2) {
+                d10 = 1.5707963267948966D - d10;
+            }
+
+            if (flag1) {
+                d10 = 3.141592653589793D - d10;
+            }
+
+            if (flag) {
+                d10 = -d10;
+            }
+
+            return d10;
+        }
+    }
+
+    public static double i(double d0) {
+        double d1 = 0.5D * d0;
+        long i = Double.doubleToRawLongBits(d0);
+
+        i = 6910469410427058090L - (i >> 1);
+        d0 = Double.longBitsToDouble(i);
+        d0 *= 1.5D - d1 * d0 * d0;
+        return d0;
+    }
+
+    public static int f(int i) {
+        i ^= i >>> 16;
+        i *= -2048144789;
+        i ^= i >>> 13;
+        i *= -1028477387;
+        i ^= i >>> 16;
+        return i;
+    }
+
+    static {
+        int i;
+		
+		final float[] SINE_TABLE = new float[65536];
+		for (i = 0; i < 65536; ++i) {
+            SINE_TABLE[i] = (float) Math.sin((double) i * 3.141592653589793D * 2.0D / 65536.0D);
+        }
+        for (i = 0; i < SINE_TABLE_INT.length; i++) {
+            SINE_TABLE_INT[i] = Float.floatToRawIntBits(SINE_TABLE[i]);
+        }
+
+        SINE_TABLE_MIDPOINT = SINE_TABLE[SINE_TABLE.length / 2];
+        for (i = 0; i < SINE_TABLE.length; i++) {
+            float expected = SINE_TABLE[i];
+            float value = lookup(i);
+
+            if (expected != value) {
+                throw new IllegalArgumentException(String.format("LUT error at index %d (expected: %s, found: %s)", i, expected, value));
+            }
+        }
+
+        d = new int[] { 0, 1, 28, 2, 29, 14, 24, 3, 30, 22, 20, 15, 25, 17, 4, 8, 31, 27, 13, 23, 21, 19, 16, 7, 26, 12, 18, 6, 11, 5, 10, 9};
+        e = Double.longBitsToDouble(4805340802404319232L);
+        f = new double[257];
+        g = new double[257];
+
+        for (i = 0; i < 257; ++i) {
+            double d0 = (double) i / 256.0D;
+            double d1 = Math.asin(d0);
+
+            MathHelper.g[i] = Math.cos(d1);
+            MathHelper.f[i] = d1;
+        }
+
+    }
+}

sources/src/main/resources/mixins.akarin.core.json

@@ -38,12 +38,6 @@
         "optimization.MixinEntityHorseAbstract",
         "optimization.MixinEntityTameableAnimal",
         "optimization.MixinPersistentCollection",
-        "optimization.MixinTileEntityEnchantTable",
+        "optimization.MixinTileEntityEnchantTable"
-        "optimization.MixinBlockChest",
-        "optimization.MixinEntityMushroomCow",
-        "optimization.MixinContainerHorse",
-        "optimization.MixinExplosion",
-        "optimization.MixinMathHelper",
-        "optimization.MixinBlockStationary"
     ]
 }