diff --git a/sources/src/main/java/net/minecraft/server/WorldManager.java b/sources/src/main/java/net/minecraft/server/WorldManager.java
new file mode 100644
index 000000000..7d40e9c6e
--- /dev/null
+++ b/sources/src/main/java/net/minecraft/server/WorldManager.java
@@ -0,0 +1,101 @@
+package net.minecraft.server;
+
+import java.util.Iterator;
+import javax.annotation.Nullable;
+
+public class WorldManager implements IWorldAccess {
+
+    private final MinecraftServer a;
+    private final WorldServer world;
+
+    public WorldManager(MinecraftServer minecraftserver, WorldServer worldserver) {
+        this.a = minecraftserver;
+        this.world = worldserver;
+    }
+
+    public void a(int i, boolean flag, double d0, double d1, double d2, double d3, double d4, double d5, int... aint) {}
+
+    public void a(int i, boolean flag, boolean flag1, double d0, double d1, double d2, double d3, double d4, double d5, int... aint) {}
+
+    public void a(Entity entity) {
+        this.world.getTracker().track(entity);
+        if (entity instanceof EntityPlayer) {
+            this.world.worldProvider.a((EntityPlayer) entity);
+        }
+
+    }
+
+    public void b(Entity entity) {
+        this.world.getTracker().untrackEntity(entity);
+        this.world.getScoreboard().a(entity);
+        if (entity instanceof EntityPlayer) {
+            this.world.worldProvider.b((EntityPlayer) entity);
+        }
+
+    }
+
+    public void a(@Nullable EntityHuman entityhuman, SoundEffect soundeffect, SoundCategory soundcategory, double d0, double d1, double d2, float f, float f1) {
+        // CraftBukkit - this.world.dimension, // Paper - this.world.dimension -> this.world
+        this.a.getPlayerList().sendPacketNearby(entityhuman, d0, d1, d2, f > 1.0F ? (double) (16.0F * f) : 16.0D, this.world, new PacketPlayOutNamedSoundEffect(soundeffect, soundcategory, d0, d1, d2, f, f1));
+    }
+
+    public void a(int i, int j, int k, int l, int i1, int j1) {}
+
+    public void a(World world, BlockPosition blockposition, IBlockData iblockdata, IBlockData iblockdata1, int i) {
+        this.world.getPlayerChunkMap().flagDirty(blockposition);
+    }
+
+    public void a(BlockPosition blockposition) {}
+
+    public void a(SoundEffect soundeffect, BlockPosition blockposition) {}
+
+    public void a(EntityHuman entityhuman, int i, BlockPosition blockposition, int j) {
+        // CraftBukkit - this.world.dimension
+        this.a.getPlayerList().sendPacketNearby(entityhuman, (double) blockposition.getX(), (double) blockposition.getY(), (double) blockposition.getZ(), 64.0D, this.world, new PacketPlayOutWorldEvent(i, blockposition, j, false));
+    }
+
+    public void a(int i, BlockPosition blockposition, int j) {
+        this.a.getPlayerList().sendAll(new PacketPlayOutWorldEvent(i, blockposition, j, true));
+    }
+
+    public void b(int i, BlockPosition blockposition, int j) {
+        // Iterator iterator = this.a.getPlayerList().v().iterator(); // Paper
+
+        // CraftBukkit start
+        EntityHuman entityhuman = null;
+        Entity entity = world.getEntity(i);
+        if (entity instanceof EntityHuman) entityhuman = (EntityHuman) entity;
+        // CraftBukkit end
+
+        // Paper start
+        java.util.List<? extends EntityHuman> list = entity != null ? entity.world.players : this.a.getPlayerList().v();
+        Iterator<? extends EntityHuman> iterator = list.iterator();
+		PacketPlayOutBlockBreakAnimation packet = null; // NeonPaper - cache packet
+        while (iterator.hasNext()) {
+            EntityHuman human = iterator.next();
+            if (!(human instanceof EntityPlayer)) continue;
+            EntityPlayer entityplayer = (EntityPlayer) human;
+            // Paper end
+
+            if (entityplayer != null && entityplayer.world == this.world && entityplayer.getId() != i) {
+                double d0 = (double) blockposition.getX() - entityplayer.locX;
+                double d1 = (double) blockposition.getY() - entityplayer.locY;
+                double d2 = (double) blockposition.getZ() - entityplayer.locZ;
+
+                // CraftBukkit start
+                if (entityhuman != null && entityhuman instanceof EntityPlayer && !entityplayer.getBukkitEntity().canSee(((EntityPlayer) entityhuman).getBukkitEntity())) {
+                    continue;
+                }
+                // CraftBukkit end
+
+                if (d0 * d0 + d1 * d1 + d2 * d2 < 1024.0D) {
+                // NeonPaper start
+                if (packet == null) packet = new PacketPlayOutBlockBreakAnimation(i, blockposition, j);
+                    entityplayer.playerConnection.sendPacket(packet);
+                // NeonPaper end
+                }
+            }
+        }
+
+    }
+}