From dd9186f3ff7054b05e2b5379badb7204718bc50d Mon Sep 17 00:00:00 2001
From: md_5 <git@md-5.net>
Date: Sun, 21 Sep 2014 18:11:43 -0700
Subject: [PATCH] Spigot Update - 20140921a


diff --git a/src/main/java/net/minecraft/server/EnchantmentManager.java b/src/main/java/net/minecraft/server/EnchantmentManager.java
new file mode 100644
index 0000000..deda472
--- /dev/null
+++ b/src/main/java/net/minecraft/server/EnchantmentManager.java
@@ -0,0 +1,364 @@
+package net.minecraft.server;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.LinkedHashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Random;
+
+public class EnchantmentManager {
+
+    private static final Random random = new Random();
+    private static final EnchantmentModifierProtection b = new EnchantmentModifierProtection((EmptyClass) null);
+    private static final EnchantmentModifierDamage c = new EnchantmentModifierDamage((EmptyClass) null);
+    private static final EnchantmentModifierThorns d = new EnchantmentModifierThorns((EmptyClass) null);
+    private static final EnchantmentModifierArthropods e = new EnchantmentModifierArthropods((EmptyClass) null);
+
+    public static int getEnchantmentLevel(int i, ItemStack itemstack) {
+        if (itemstack == null) {
+            return 0;
+        } else {
+            NBTTagList nbttaglist = itemstack.getEnchantments();
+
+            if (nbttaglist == null) {
+                return 0;
+            } else {
+                for (int j = 0; j < nbttaglist.size(); ++j) {
+                    short short1 = nbttaglist.get(j).getShort("id");
+                    short short2 = nbttaglist.get(j).getShort("lvl");
+
+                    if (short1 == i) {
+                        return short2;
+                    }
+                }
+
+                return 0;
+            }
+        }
+    }
+
+    public static Map a(ItemStack itemstack) {
+        LinkedHashMap linkedhashmap = new LinkedHashMap();
+        NBTTagList nbttaglist = itemstack.getItem() == Items.ENCHANTED_BOOK ? Items.ENCHANTED_BOOK.g(itemstack) : itemstack.getEnchantments();
+
+        if (nbttaglist != null) {
+            for (int i = 0; i < nbttaglist.size(); ++i) {
+                short short1 = nbttaglist.get(i).getShort("id");
+                short short2 = nbttaglist.get(i).getShort("lvl");
+
+                linkedhashmap.put(Integer.valueOf(short1), Integer.valueOf(short2));
+            }
+        }
+
+        return linkedhashmap;
+    }
+
+    public static void a(Map map, ItemStack itemstack) {
+        NBTTagList nbttaglist = new NBTTagList();
+        Iterator iterator = map.keySet().iterator();
+
+        while (iterator.hasNext()) {
+            int i = ((Integer) iterator.next()).intValue();
+            NBTTagCompound nbttagcompound = new NBTTagCompound();
+
+            nbttagcompound.setShort("id", (short) i);
+            nbttagcompound.setShort("lvl", (short) ((Integer) map.get(Integer.valueOf(i))).intValue());
+            nbttaglist.add(nbttagcompound);
+            if (itemstack.getItem() == Items.ENCHANTED_BOOK) {
+                Items.ENCHANTED_BOOK.a(itemstack, new EnchantmentInstance(i, ((Integer) map.get(Integer.valueOf(i))).intValue()));
+            }
+        }
+
+        if (nbttaglist.size() > 0) {
+            if (itemstack.getItem() != Items.ENCHANTED_BOOK) {
+                itemstack.a("ench", (NBTBase) nbttaglist);
+            }
+        } else if (itemstack.hasTag()) {
+            itemstack.getTag().remove("ench");
+        }
+    }
+
+    public static int getEnchantmentLevel(int i, ItemStack[] aitemstack) {
+        if (aitemstack == null) {
+            return 0;
+        } else {
+            int j = 0;
+            ItemStack[] aitemstack1 = aitemstack;
+            int k = aitemstack.length;
+
+            for (int l = 0; l < k; ++l) {
+                ItemStack itemstack = aitemstack1[l];
+                int i1 = getEnchantmentLevel(i, itemstack);
+
+                if (i1 > j) {
+                    j = i1;
+                }
+            }
+
+            return j;
+        }
+    }
+
+    private static void a(EnchantmentModifier enchantmentmodifier, ItemStack itemstack) {
+        if (itemstack != null) {
+            NBTTagList nbttaglist = itemstack.getEnchantments();
+
+            if (nbttaglist != null) {
+                for (int i = 0; i < nbttaglist.size(); ++i) {
+                    short short1 = nbttaglist.get(i).getShort("id");
+                    short short2 = nbttaglist.get(i).getShort("lvl");
+
+                    if (Enchantment.byId[short1] != null) {
+                        enchantmentmodifier.a(Enchantment.byId[short1], short2);
+                    }
+                }
+            }
+        }
+    }
+
+    private static void a(EnchantmentModifier enchantmentmodifier, ItemStack[] aitemstack) {
+        ItemStack[] aitemstack1 = aitemstack;
+        int i = aitemstack.length;
+
+        for (int j = 0; j < i; ++j) {
+            ItemStack itemstack = aitemstack1[j];
+
+            a(enchantmentmodifier, itemstack);
+        }
+    }
+
+    public static int a(ItemStack[] aitemstack, DamageSource damagesource) {
+        b.a = 0;
+        b.b = damagesource;
+        a((EnchantmentModifier) b, aitemstack);
+        if (b.a > 25) {
+            b.a = 25;
+        }
+
+        return (b.a + 1 >> 1) + random.nextInt((b.a >> 1) + 1);
+    }
+
+    public static float a(EntityLiving entityliving, EntityLiving entityliving1) {
+        return a(entityliving.be(), entityliving1.getMonsterType());
+    }
+
+    public static float a(ItemStack itemstack, EnumMonsterType enummonstertype) {
+        c.a = 0.0F;
+        c.b = enummonstertype;
+        a((EnchantmentModifier) c, itemstack);
+        return c.a;
+    }
+
+    public static void a(EntityLiving entityliving, Entity entity) {
+        d.b = entity;
+        d.a = entityliving;
+        a((EnchantmentModifier) d, entityliving.getEquipment());
+        if (entity instanceof EntityHuman) {
+            a((EnchantmentModifier) d, entityliving.be());
+        }
+        d.b = null;
+        d.a = null;
+    }
+
+    public static void b(EntityLiving entityliving, Entity entity) {
+        e.a = entityliving;
+        e.b = entity;
+        a((EnchantmentModifier) e, entityliving.getEquipment());
+        if (entityliving instanceof EntityHuman) {
+            a((EnchantmentModifier) e, entityliving.be());
+        }
+        e.a = null;
+        e.b = null;
+    }
+
+    public static int getKnockbackEnchantmentLevel(EntityLiving entityliving, EntityLiving entityliving1) {
+        return getEnchantmentLevel(Enchantment.KNOCKBACK.id, entityliving.be());
+    }
+
+    public static int getFireAspectEnchantmentLevel(EntityLiving entityliving) {
+        return getEnchantmentLevel(Enchantment.FIRE_ASPECT.id, entityliving.be());
+    }
+
+    public static int getOxygenEnchantmentLevel(EntityLiving entityliving) {
+        return getEnchantmentLevel(Enchantment.OXYGEN.id, entityliving.getEquipment());
+    }
+
+    public static int getDigSpeedEnchantmentLevel(EntityLiving entityliving) {
+        return getEnchantmentLevel(Enchantment.DIG_SPEED.id, entityliving.be());
+    }
+
+    public static boolean hasSilkTouchEnchantment(EntityLiving entityliving) {
+        return getEnchantmentLevel(Enchantment.SILK_TOUCH.id, entityliving.be()) > 0;
+    }
+
+    public static int getBonusBlockLootEnchantmentLevel(EntityLiving entityliving) {
+        return getEnchantmentLevel(Enchantment.LOOT_BONUS_BLOCKS.id, entityliving.be());
+    }
+
+    public static int getLuckEnchantmentLevel(EntityLiving entityliving) {
+        return getEnchantmentLevel(Enchantment.LUCK.id, entityliving.be());
+    }
+
+    public static int getLureEnchantmentLevel(EntityLiving entityliving) {
+        return getEnchantmentLevel(Enchantment.LURE.id, entityliving.be());
+    }
+
+    public static int getBonusMonsterLootEnchantmentLevel(EntityLiving entityliving) {
+        return getEnchantmentLevel(Enchantment.LOOT_BONUS_MOBS.id, entityliving.be());
+    }
+
+    public static boolean hasWaterWorkerEnchantment(EntityLiving entityliving) {
+        return getEnchantmentLevel(Enchantment.WATER_WORKER.id, entityliving.getEquipment()) > 0;
+    }
+
+    public static ItemStack a(Enchantment enchantment, EntityLiving entityliving) {
+        ItemStack[] aitemstack = entityliving.getEquipment();
+        int i = aitemstack.length;
+
+        for (int j = 0; j < i; ++j) {
+            ItemStack itemstack = aitemstack[j];
+
+            if (itemstack != null && getEnchantmentLevel(enchantment.id, itemstack) > 0) {
+                return itemstack;
+            }
+        }
+
+        return null;
+    }
+
+    public static int a(Random random, int i, int j, ItemStack itemstack) {
+        Item item = itemstack.getItem();
+        int k = item.c();
+
+        if (k <= 0) {
+            return 0;
+        } else {
+            if (j > 15) {
+                j = 15;
+            }
+
+            int l = random.nextInt(8) + 1 + (j >> 1) + random.nextInt(j + 1);
+
+            return i == 0 ? Math.max(l / 3, 1) : (i == 1 ? l * 2 / 3 + 1 : Math.max(l, j * 2));
+        }
+    }
+
+    public static ItemStack a(Random random, ItemStack itemstack, int i) {
+        List list = b(random, itemstack, i);
+        boolean flag = itemstack.getItem() == Items.BOOK;
+
+        if (flag) {
+            itemstack.setItem(Items.ENCHANTED_BOOK);
+        }
+
+        if (list != null) {
+            Iterator iterator = list.iterator();
+
+            while (iterator.hasNext()) {
+                EnchantmentInstance enchantmentinstance = (EnchantmentInstance) iterator.next();
+
+                if (flag) {
+                    Items.ENCHANTED_BOOK.a(itemstack, enchantmentinstance);
+                } else {
+                    itemstack.addEnchantment(enchantmentinstance.enchantment, enchantmentinstance.level);
+                }
+            }
+        }
+
+        return itemstack;
+    }
+
+    public static List b(Random random, ItemStack itemstack, int i) {
+        Item item = itemstack.getItem();
+        int j = item.c();
+
+        if (j <= 0) {
+            return null;
+        } else {
+            j /= 2;
+            j = 1 + random.nextInt((j >> 1) + 1) + random.nextInt((j >> 1) + 1);
+            int k = j + i;
+            float f = (random.nextFloat() + random.nextFloat() - 1.0F) * 0.15F;
+            int l = (int) ((float) k * (1.0F + f) + 0.5F);
+
+            if (l < 1) {
+                l = 1;
+            }
+
+            ArrayList arraylist = null;
+            Map map = b(l, itemstack);
+
+            if (map != null && !map.isEmpty()) {
+                EnchantmentInstance enchantmentinstance = (EnchantmentInstance) WeightedRandom.a(random, map.values());
+
+                if (enchantmentinstance != null) {
+                    arraylist = new ArrayList();
+                    arraylist.add(enchantmentinstance);
+
+                    for (int i1 = l; random.nextInt(50) <= i1; i1 >>= 1) {
+                        Iterator iterator = map.keySet().iterator();
+
+                        while (iterator.hasNext()) {
+                            Integer integer = (Integer) iterator.next();
+                            boolean flag = true;
+                            Iterator iterator1 = arraylist.iterator();
+
+                            while (true) {
+                                if (iterator1.hasNext()) {
+                                    EnchantmentInstance enchantmentinstance1 = (EnchantmentInstance) iterator1.next();
+
+                                    if (enchantmentinstance1.enchantment.a(Enchantment.byId[integer.intValue()])) {
+                                        continue;
+                                    }
+
+                                    flag = false;
+                                }
+
+                                if (!flag) {
+                                    iterator.remove();
+                                }
+                                break;
+                            }
+                        }
+
+                        if (!map.isEmpty()) {
+                            EnchantmentInstance enchantmentinstance2 = (EnchantmentInstance) WeightedRandom.a(random, map.values());
+
+                            arraylist.add(enchantmentinstance2);
+                        }
+                    }
+                }
+            }
+
+            return arraylist;
+        }
+    }
+
+    public static Map b(int i, ItemStack itemstack) {
+        Item item = itemstack.getItem();
+        HashMap hashmap = null;
+        boolean flag = itemstack.getItem() == Items.BOOK;
+        Enchantment[] aenchantment = Enchantment.byId;
+        int j = aenchantment.length;
+
+        for (int k = 0; k < j; ++k) {
+            Enchantment enchantment = aenchantment[k];
+
+            if (enchantment != null && (enchantment.slot.canEnchant(item) || flag)) {
+                for (int l = enchantment.getStartLevel(); l <= enchantment.getMaxLevel(); ++l) {
+                    if (i >= enchantment.a(l) && i <= enchantment.b(l)) {
+                        if (hashmap == null) {
+                            hashmap = new HashMap();
+                        }
+
+                        hashmap.put(Integer.valueOf(enchantment.id), new EnchantmentInstance(enchantment, l));
+                    }
+                }
+            }
+        }
+
+        return hashmap;
+    }
+}
diff --git a/src/main/java/net/minecraft/server/EnchantmentModifierArthropods.java b/src/main/java/net/minecraft/server/EnchantmentModifierArthropods.java
new file mode 100644
index 0000000..c8e11db
--- /dev/null
+++ b/src/main/java/net/minecraft/server/EnchantmentModifierArthropods.java
@@ -0,0 +1,17 @@
+package net.minecraft.server;
+
+final class EnchantmentModifierArthropods implements EnchantmentModifier {
+
+    public EntityLiving a;
+    public Entity b;
+
+    private EnchantmentModifierArthropods() {}
+
+    public void a(Enchantment enchantment, int i) {
+        enchantment.a(this.a, this.b, i);
+    }
+
+    EnchantmentModifierArthropods(EmptyClass emptyclass) {
+        this();
+    }
+}
diff --git a/src/main/java/net/minecraft/server/EnchantmentModifierDamage.java b/src/main/java/net/minecraft/server/EnchantmentModifierDamage.java
new file mode 100644
index 0000000..8610c7a
--- /dev/null
+++ b/src/main/java/net/minecraft/server/EnchantmentModifierDamage.java
@@ -0,0 +1,17 @@
+package net.minecraft.server;
+
+final class EnchantmentModifierDamage implements EnchantmentModifier {
+
+    public float a;
+    public EnumMonsterType b;
+
+    private EnchantmentModifierDamage() {}
+
+    public void a(Enchantment enchantment, int i) {
+        this.a += enchantment.a(i, this.b);
+    }
+
+    EnchantmentModifierDamage(EmptyClass emptyclass) {
+        this();
+    }
+}
diff --git a/src/main/java/net/minecraft/server/EnchantmentModifierProtection.java b/src/main/java/net/minecraft/server/EnchantmentModifierProtection.java
new file mode 100644
index 0000000..8c03320
--- /dev/null
+++ b/src/main/java/net/minecraft/server/EnchantmentModifierProtection.java
@@ -0,0 +1,17 @@
+package net.minecraft.server;
+
+final class EnchantmentModifierProtection implements EnchantmentModifier {
+
+    public int a;
+    public DamageSource b;
+
+    private EnchantmentModifierProtection() {}
+
+    public void a(Enchantment enchantment, int i) {
+        this.a += enchantment.a(i, this.b);
+    }
+
+    EnchantmentModifierProtection(EmptyClass emptyclass) {
+        this();
+    }
+}
diff --git a/src/main/java/net/minecraft/server/EnchantmentModifierThorns.java b/src/main/java/net/minecraft/server/EnchantmentModifierThorns.java
new file mode 100644
index 0000000..41993e0
--- /dev/null
+++ b/src/main/java/net/minecraft/server/EnchantmentModifierThorns.java
@@ -0,0 +1,17 @@
+package net.minecraft.server;
+
+final class EnchantmentModifierThorns implements EnchantmentModifier {
+
+    public EntityLiving a;
+    public Entity b;
+
+    private EnchantmentModifierThorns() {}
+
+    public void a(Enchantment enchantment, int i) {
+        enchantment.b(this.a, this.b, i);
+    }
+
+    EnchantmentModifierThorns(EmptyClass emptyclass) {
+        this();
+    }
+}
diff --git a/src/main/java/net/minecraft/server/EnchantmentThorns.java b/src/main/java/net/minecraft/server/EnchantmentThorns.java
new file mode 100644
index 0000000..6841259
--- /dev/null
+++ b/src/main/java/net/minecraft/server/EnchantmentThorns.java
@@ -0,0 +1,54 @@
+package net.minecraft.server;
+
+import java.util.Random;
+
+public class EnchantmentThorns extends Enchantment {
+
+    public EnchantmentThorns(int i, int j) {
+        super(i, j, EnchantmentSlotType.ARMOR_TORSO);
+        this.b("thorns");
+    }
+
+    public int a(int n) {
+        return 10 + 20 * (n - 1);
+    }
+
+    public int b(int i) {
+        return super.a(i) + 50;
+    }
+
+    public int getMaxLevel() {
+        return 3;
+    }
+
+    public boolean canEnchant(ItemStack itemstack) {
+        return itemstack.getItem() instanceof ItemArmor ? true : super.canEnchant(itemstack);
+    }
+
+    public void b(EntityLiving entityliving, Entity entity, int n) {
+        Random ai = entityliving.aI();
+        ItemStack a = EnchantmentManager.a(Enchantment.THORNS, entityliving);
+
+        if (a(n, ai)) {
+            entity.damageEntity(DamageSource.a(entityliving), b(n, ai));
+            entity.makeSound("damage.thorns", 0.5F, 1.0F);
+            if (a != null) {
+                a.damage(3, entityliving);
+            }
+        } else if (a != null) {
+            a.damage(1, entityliving);
+        }
+    }
+
+    public static boolean a(int n, Random random) {
+        return n > 0 && random.nextFloat() < 0.15f * n;
+    }
+
+    public static int b(int n, Random random) {
+        if (n > 10) {
+            return n - 10;
+        }
+
+        return 1 + random.nextInt(4);
+    }
+}
diff --git a/src/main/java/net/minecraft/server/EntityInsentient.java b/src/main/java/net/minecraft/server/EntityInsentient.java
index 617f7d4..cf0c38f 100644
--- a/src/main/java/net/minecraft/server/EntityInsentient.java
+++ b/src/main/java/net/minecraft/server/EntityInsentient.java
@@ -1,5 +1,6 @@
 package net.minecraft.server;
 
+import java.lang.ref.WeakReference;
 import java.util.Iterator;
 import java.util.List;
 import java.util.UUID;
@@ -21,7 +22,7 @@ public abstract class EntityInsentient extends EntityLiving {
     private Navigation navigation;
     protected final PathfinderGoalSelector goalSelector;
     protected final PathfinderGoalSelector targetSelector;
-    private EntityLiving goalTarget;
+    private WeakReference<EntityLiving> goalTarget = new WeakReference<EntityLiving>(null); // Spigot Update - 20140921a
     private EntitySenses bq;
     private ItemStack[] equipment = new ItemStack[5];
     public float[] dropChances = new float[5]; // CraftBukkit - protected -> public
@@ -76,11 +77,11 @@ public abstract class EntityInsentient extends EntityLiving {
     }
 
     public EntityLiving getGoalTarget() {
-        return this.goalTarget;
+        return this.goalTarget.get();
     }
 
     public void setGoalTarget(EntityLiving entityliving) {
-        this.goalTarget = entityliving;
+        this.goalTarget = new WeakReference<EntityLiving>(entityliving);
     }
 
     public boolean a(Class oclass) {
diff --git a/src/main/java/net/minecraft/server/ItemEnchantedBook.java b/src/main/java/net/minecraft/server/ItemEnchantedBook.java
new file mode 100644
index 0000000..0829e4c
--- /dev/null
+++ b/src/main/java/net/minecraft/server/ItemEnchantedBook.java
@@ -0,0 +1,72 @@
+package net.minecraft.server;
+
+import java.util.Random;
+
+public class ItemEnchantedBook extends Item {
+
+    public ItemEnchantedBook() {}
+
+    public boolean e_(ItemStack itemStack) {
+        return false;
+    }
+
+    public EnumItemRarity f(ItemStack itemstack) {
+        if (this.g(itemstack).size() > 0) {
+            return EnumItemRarity.UNCOMMON;
+        }
+        return super.f(itemstack);
+    }
+
+    public NBTTagList g(ItemStack itemStack) {
+        if (itemStack.tag == null || !itemStack.tag.hasKeyOfType("StoredEnchantments", 9)) {
+            return new NBTTagList();
+        }
+        return (NBTTagList)itemStack.tag.get("StoredEnchantments");
+    }
+
+    public void a(ItemStack itemStack, EnchantmentInstance enchantmentInstance) {
+        NBTTagList g = this.g(itemStack);
+        boolean b = true;
+        for (int i = 0; i < g.size(); ++i) {
+            NBTTagCompound value = g.get(i);
+            if (value.getShort("id") == enchantmentInstance.enchantment.id) {
+                if (value.getShort("lvl") < enchantmentInstance.level) {
+                    value.setShort("lvl", (short)enchantmentInstance.level);
+                }
+
+                b = false;
+                break;
+            }
+        }
+
+        if (b) {
+            NBTTagCompound nbtTagCompound = new NBTTagCompound();
+            nbtTagCompound.setShort("id", (short)enchantmentInstance.enchantment.id);
+            nbtTagCompound.setShort("lvl", (short)enchantmentInstance.level);
+            g.add(nbtTagCompound);
+        }
+
+        if (!itemStack.hasTag()) {
+            itemStack.setTag(new NBTTagCompound());
+        }
+
+        itemStack.getTag().set("StoredEnchantments", g);
+    }
+
+    public ItemStack a(EnchantmentInstance enchantmentInstance) {
+        ItemStack itemStack = new ItemStack(this);
+        this.a(itemStack, enchantmentInstance);
+        return itemStack;
+    }
+
+    public StructurePieceTreasure b(Random random) {
+        return this.a(random, 1, 1, 1);
+    }
+
+    public StructurePieceTreasure a(final Random random, final int n, final int n2, final int n3) {
+        ItemStack itemstack = new ItemStack(Items.BOOK, 1, 0);
+
+        EnchantmentManager.a(random, itemstack, 30);
+        return new StructurePieceTreasure(itemstack, n, n2, n3);
+    }
+}
diff --git a/src/main/java/net/minecraft/server/NetworkManager.java b/src/main/java/net/minecraft/server/NetworkManager.java
index 0cae021..76a5403 100644
--- a/src/main/java/net/minecraft/server/NetworkManager.java
+++ b/src/main/java/net/minecraft/server/NetworkManager.java
@@ -199,6 +199,8 @@ public class NetworkManager extends SimpleChannelInboundHandler {
     public void close(IChatBaseComponent ichatbasecomponent) {
         // Spigot Start
         this.preparing = false;
+        this.k.clear(); // Spigot Update - 20140921a
+        this.l.clear(); // Spigot Update - 20140921a
         // Spigot End
         if (this.m.isOpen()) {
             this.m.close();
diff --git a/src/main/java/net/minecraft/server/PathfinderGoalNearestAttackableTarget.java b/src/main/java/net/minecraft/server/PathfinderGoalNearestAttackableTarget.java
new file mode 100644
index 0000000..30a05c6
--- /dev/null
+++ b/src/main/java/net/minecraft/server/PathfinderGoalNearestAttackableTarget.java
@@ -0,0 +1,54 @@
+package net.minecraft.server;
+
+import java.lang.ref.WeakReference;
+import java.util.Collections;
+import java.util.List;
+
+public class PathfinderGoalNearestAttackableTarget extends PathfinderGoalTarget {
+
+    private final Class a;
+    private final int b;
+    private final DistanceComparator e;
+    private final IEntitySelector f;
+    private WeakReference<EntityLiving> g; // Spigot Update - 20140921a
+
+    public PathfinderGoalNearestAttackableTarget(EntityCreature entitycreature, Class oclass, int i, boolean flag) {
+        this(entitycreature, oclass, i, flag, false);
+    }
+
+    public PathfinderGoalNearestAttackableTarget(EntityCreature entitycreature, Class oclass, int i, boolean flag, boolean flag1) {
+        this(entitycreature, oclass, i, flag, flag1, (IEntitySelector) null);
+    }
+
+    public PathfinderGoalNearestAttackableTarget(EntityCreature entitycreature, Class oclass, int i, boolean flag, boolean flag1, IEntitySelector ientityselector) {
+        super(entitycreature, flag, flag1);
+        this.g = new WeakReference<EntityLiving>(null);
+        this.a = oclass;
+        this.b = i;
+        this.e = new DistanceComparator(entitycreature);
+        this.a(1);
+        this.f = new EntitySelectorNearestAttackableTarget(this, ientityselector);
+    }
+
+    public boolean a() {
+        if (this.b > 0 && this.c.aI().nextInt(this.b) != 0) {
+            return false;
+        } else {
+            double d0 = this.f();
+            List list = this.c.world.a(this.a, this.c.boundingBox.grow(d0, 4.0D, d0), this.f);
+
+            Collections.sort(list, this.e);
+            if (list.isEmpty()) {
+                return false;
+            } else {
+                this.g = new WeakReference<EntityLiving>((EntityLiving) list.get(0));
+                return true;
+            }
+        }
+    }
+
+    public void c() {
+        this.c.setGoalTarget(this.g.get());
+        super.c();
+    }
+}
diff --git a/src/main/java/net/minecraft/server/PathfinderGoalSwell.java b/src/main/java/net/minecraft/server/PathfinderGoalSwell.java
new file mode 100644
index 0000000..9a31d82
--- /dev/null
+++ b/src/main/java/net/minecraft/server/PathfinderGoalSwell.java
@@ -0,0 +1,36 @@
+package net.minecraft.server;
+
+public class PathfinderGoalSwell extends PathfinderGoal {
+
+    EntityCreeper a;
+
+    public PathfinderGoalSwell(EntityCreeper entitycreeper) {
+        this.a = entitycreeper;
+        this.a(1);
+    }
+
+    public boolean a() {
+        EntityLiving entityliving = this.a.getGoalTarget();
+
+        return this.a.cb() > 0 || entityliving != null && this.a.f(entityliving) < 9.0D;
+    }
+
+    public void c() {
+        this.a.getNavigation().h();
+    }
+
+    public void d() {}
+
+    public void e() {
+        EntityLiving b = this.a.getGoalTarget(); // Spigot Update - 20140921a
+        if (b == null) {
+            this.a.a(-1);
+        } else if (this.a.f(b) > 49.0D) {
+            this.a.a(-1);
+        } else if (!this.a.getEntitySenses().canSee(b)) {
+            this.a.a(-1);
+        } else {
+            this.a.a(1);
+        }
+    }
+}
diff --git a/src/main/java/org/bukkit/craftbukkit/util/LongHash.java b/src/main/java/org/bukkit/craftbukkit/util/LongHash.java
index 9d54472..1765c79 100644
--- a/src/main/java/org/bukkit/craftbukkit/util/LongHash.java
+++ b/src/main/java/org/bukkit/craftbukkit/util/LongHash.java
@@ -10,6 +10,6 @@ public class LongHash {
     }
 
     public static int lsw(long l) {
-        return (int) (l) + Integer.MIN_VALUE; // Spigot - remove redundant &
+        return (int) (l & -1L) + Integer.MIN_VALUE; // Spigot - remove redundant & // Spigot Update - 20140921a
     }
 }
diff --git a/src/main/java/org/bukkit/craftbukkit/util/LongHashSet.java b/src/main/java/org/bukkit/craftbukkit/util/LongHashSet.java
index 7f659b7..22c96c5 100644
--- a/src/main/java/org/bukkit/craftbukkit/util/LongHashSet.java
+++ b/src/main/java/org/bukkit/craftbukkit/util/LongHashSet.java
@@ -31,7 +31,6 @@ public class LongHashSet {
     private int elements;
     private long[] values;
     private int modCount;
-    private org.spigotmc.FlatMap<Boolean> flat = new org.spigotmc.FlatMap<Boolean>(); // Spigot
 
     public LongHashSet() {
         this(INITIAL_SIZE);
@@ -57,30 +56,10 @@ public class LongHashSet {
     }
 
     public boolean contains(int msw, int lsw) {
-        // Spigot start
-        if ( elements == 0 )
-        {
-            return false;
-        }
-        if ( flat.contains( msw, lsw ) )
-        {
-            return true;
-        }
-        // Spigot end
         return contains(LongHash.toLong(msw, lsw));
     }
 
     public boolean contains(long value) {
-        // Spigot start
-        if ( elements == 0 )
-        {
-            return false;
-        }
-        if ( flat.contains( value ) )
-        {
-            return true;
-        }
-        // Spigot end
         int hash = hash(value);
         int index = (hash & 0x7FFFFFFF) % values.length;
         int offset = 1;
@@ -103,7 +82,6 @@ public class LongHashSet {
     }
 
     public boolean add(long value) {
-        flat.put( value, Boolean.TRUE ); // Spigot
         int hash = hash(value);
         int index = (hash & 0x7FFFFFFF) % values.length;
         int offset = 1;
@@ -147,18 +125,10 @@ public class LongHashSet {
     }
 
     public void remove(int msw, int lsw) {
-        // Spigot start
-        flat.remove(msw, lsw);
-        remove0(LongHash.toLong(msw, lsw));
+        remove(LongHash.toLong(msw, lsw));
     }
 
     public boolean remove(long value) {
-        flat.remove(value);
-        return remove0(value);
-    }
-
-    private boolean remove0(long value) {
-        // Spigot end
         int hash = hash(value);
         int index = (hash & 0x7FFFFFFF) % values.length;
         int offset = 1;
@@ -191,7 +161,6 @@ public class LongHashSet {
 
         freeEntries = values.length;
         modCount++;
-        flat = new org.spigotmc.FlatMap<Boolean>();
     }
 
     public long[] toArray() {
diff --git a/src/main/java/org/bukkit/craftbukkit/util/LongObjectHashMap.java b/src/main/java/org/bukkit/craftbukkit/util/LongObjectHashMap.java
index 2e5b436..01861cc 100644
--- a/src/main/java/org/bukkit/craftbukkit/util/LongObjectHashMap.java
+++ b/src/main/java/org/bukkit/craftbukkit/util/LongObjectHashMap.java
@@ -28,7 +28,6 @@ public class LongObjectHashMap<V> implements Cloneable, Serializable {
     private transient V[][]    values;
     private transient int      modCount;
     private transient int      size;
-    private transient org.spigotmc.FlatMap<V> flat = new org.spigotmc.FlatMap<V>(); // Spigot
 
     public LongObjectHashMap() {
         initialize();
@@ -62,17 +61,6 @@ public class LongObjectHashMap<V> implements Cloneable, Serializable {
     }
 
     public V get(long key) {
-        // Spigot start
-        if ( size == 0 )
-        {
-            return null;
-        }
-        V val = flat.get( key );
-        if ( val != null )
-        {
-            return val;
-        }
-        // Spigot end
         int index = (int) (keyIndex(key) & (BUCKET_SIZE - 1));
         long[] inner = keys[index];
         if (inner == null) return null;
@@ -90,7 +78,6 @@ public class LongObjectHashMap<V> implements Cloneable, Serializable {
     }
 
     public V put(long key, V value) {
-        flat.put(key, value); // Spigot
         int index = (int) (keyIndex(key) & (BUCKET_SIZE - 1));
         long[] innerKeys = keys[index];
         V[] innerValues = values[index];
@@ -137,7 +124,6 @@ public class LongObjectHashMap<V> implements Cloneable, Serializable {
     }
 
     public V remove(long key) {
-        flat.remove(key); // Spigot
         int index = (int) (keyIndex(key) & (BUCKET_SIZE - 1));
         long[] inner = keys[index];
         if (inner == null) {
@@ -188,7 +174,6 @@ public class LongObjectHashMap<V> implements Cloneable, Serializable {
         size = 0;
         Arrays.fill(keys, null);
         Arrays.fill(values, null);
-        flat = new org.spigotmc.FlatMap<V>();
     }
 
     public Set<Long> keySet() {
diff --git a/src/main/java/org/spigotmc/FlatMap.java b/src/main/java/org/spigotmc/FlatMap.java
deleted file mode 100644
index 9416f6e..0000000
--- a/src/main/java/org/spigotmc/FlatMap.java
+++ /dev/null
@@ -1,64 +0,0 @@
-package org.spigotmc;
-
-import org.bukkit.craftbukkit.util.LongHash;
-
-public class FlatMap<V>
-{
-
-    private static final int FLAT_LOOKUP_SIZE = 512;
-    private final Object[][] flatLookup = new Object[ FLAT_LOOKUP_SIZE * 2 ][ FLAT_LOOKUP_SIZE * 2 ];
-
-    public void put(long msw, long lsw, V value)
-    {
-        long acx = Math.abs( msw );
-        long acz = Math.abs( lsw );
-        if ( acx < FLAT_LOOKUP_SIZE && acz < FLAT_LOOKUP_SIZE )
-        {
-            flatLookup[(int) ( msw + FLAT_LOOKUP_SIZE )][(int) ( lsw + FLAT_LOOKUP_SIZE )] = value;
-        }
-    }
-
-    public void put(long key, V value)
-    {
-        put( LongHash.msw( key ), LongHash.lsw( key ), value );
-
-    }
-
-    public void remove(long key)
-    {
-        put( key, null );
-    }
-
-    public void remove(long msw, long lsw)
-    {
-        put( msw, lsw, null );
-    }
-
-    public boolean contains(long msw, long lsw)
-    {
-        return get( msw, lsw ) != null;
-    }
-
-    public boolean contains(long key)
-    {
-        return get( key ) != null;
-    }
-
-    public V get(long msw, long lsw)
-    {
-        long acx = Math.abs( msw );
-        long acz = Math.abs( lsw );
-        if ( acx < FLAT_LOOKUP_SIZE && acz < FLAT_LOOKUP_SIZE )
-        {
-            return (V) flatLookup[(int) ( msw + FLAT_LOOKUP_SIZE )][(int) ( lsw + FLAT_LOOKUP_SIZE )];
-        } else
-        {
-            return null;
-        }
-    }
-
-    public V get(long key)
-    {
-        return get( LongHash.msw( key ), LongHash.lsw( key ) );
-    }
-}
-- 
1.9.4.msysgit.0