[Bleeding] Implement EntityShootBowEvent. Thanks Zeerix.

src/main/java/net/minecraft/server/EntitySkeleton.java

@@ -1,6 +1,8 @@
 package net.minecraft.server;
 
 // CraftBukkit start
+import org.bukkit.craftbukkit.event.CraftEventFactory;
+import org.bukkit.event.entity.EntityShootBowEvent;
 import org.bukkit.event.entity.EntityCombustEvent;
 import org.bukkit.event.entity.EntityDeathEvent;
 // CraftBukkit end
@@ -76,10 +78,22 @@ public class EntitySkeleton extends EntityMonster {
                 double d2 = entity.locY + (double) entity.y() - 0.699999988079071D - entityarrow.locY;
                 float f1 = MathHelper.sqrt(d0 * d0 + d1 * d1) * 0.2F;
 
-                this.world.makeSound(this, "random.bow", 1.0F, 1.0F / (this.random.nextFloat() * 0.4F + 0.8F));
-                this.world.addEntity(entityarrow);
+                this.world.makeSound(this, "random.bow", 1.0F, 1.0F / (this.random.nextFloat() * 0.4F + 0.8F)); // CraftBukkit - moved down
+                // this.world.addEntity(entityarrow); // CraftBukkit - moved down
                 entityarrow.shoot(d0, d2 + (double) f1, d1, 1.6F, 12.0F);
                 this.attackTicks = 60;
+
+                // CraftBukkit start
+                EntityShootBowEvent event = CraftEventFactory.callEntityShootBowEvent(this, null, entityarrow, 0.5F);
+                if (event.isCancelled()) {
+                    if (event.getProjectile() != null) {
+                        event.getProjectile().remove();
+                    }
+                } else if (event.getProjectile() == entityarrow.getBukkitEntity()) {
+                    world.addEntity(entityarrow);
+                }
+                this.world.makeSound(this, "random.bow", 1.0F, 1.0F / (this.random.nextFloat() * 0.4F + 0.8F));
+                // CraftBukkit end
             }
 
             this.yaw = (float) (Math.atan2(d1, d0) * 180.0D / 3.1415927410125732D) - 90.0F;

src/main/java/net/minecraft/server/ItemBow.java

@@ -0,0 +1,99 @@
+package net.minecraft.server;
+
+// CraftBukkit start
+import org.bukkit.craftbukkit.event.CraftEventFactory;
+import org.bukkit.event.entity.EntityShootBowEvent;
+// CraftBukkit end
+
+public class ItemBow extends Item {
+
+    public ItemBow(int i) {
+        super(i);
+        this.maxStackSize = 1;
+        this.setMaxDurability(384);
+    }
+
+    public void a(ItemStack itemstack, World world, EntityHuman entityhuman, int i) {
+        boolean flag = entityhuman.abilities.canInstantlyBuild || EnchantmentManager.getEnchantmentLevel(Enchantment.ARROW_INFINITE.id, itemstack) > 0;
+
+        if (flag || entityhuman.inventory.c(Item.ARROW.id)) {
+            int j = this.c(itemstack) - i;
+            float f = (float) j / 20.0F;
+
+            f = (f * f + f * 2.0F) / 3.0F;
+            if ((double) f < 0.1D) {
+                return;
+            }
+
+            if (f > 1.0F) {
+                f = 1.0F;
+            }
+
+            EntityArrow entityarrow = new EntityArrow(world, entityhuman, f * 2.0F);
+
+            if (f == 1.0F) {
+                entityarrow.d = true;
+            }
+
+            int k = EnchantmentManager.getEnchantmentLevel(Enchantment.ARROW_DAMAGE.id, itemstack);
+
+            if (k > 0) {
+                entityarrow.a(entityarrow.j() + (double) k * 0.5D + 0.5D);
+            }
+
+            int l = EnchantmentManager.getEnchantmentLevel(Enchantment.ARROW_KNOCKBACK.id, itemstack);
+
+            if (l > 0) {
+                entityarrow.b(l);
+            }
+
+            if (EnchantmentManager.getEnchantmentLevel(Enchantment.ARROW_FIRE.id, itemstack) > 0) {
+                entityarrow.setOnFire(100);
+            }
+
+            // CraftBukkit start
+            EntityShootBowEvent event = CraftEventFactory.callEntityShootBowEvent(entityhuman, itemstack, entityarrow, f);
+            if (event.isCancelled()) {
+                event.getProjectile().remove();
+                return;
+            }
+
+            if (event.getProjectile() == entityarrow.getBukkitEntity()) {
+                world.addEntity(entityarrow);
+            }
+            // CraftBukkit end
+
+            itemstack.damage(1, entityhuman);
+            world.makeSound(entityhuman, "random.bow", 1.0F, 1.0F / (c.nextFloat() * 0.4F + 1.2F) + f * 0.5F);
+            if (!flag) {
+                entityhuman.inventory.b(Item.ARROW.id);
+            } else {
+                entityarrow.fromPlayer = false;
+            }
+        }
+    }
+
+    public ItemStack b(ItemStack itemstack, World world, EntityHuman entityhuman) {
+        return itemstack;
+    }
+
+    public int c(ItemStack itemstack) {
+        return 72000;
+    }
+
+    public EnumAnimation d(ItemStack itemstack) {
+        return EnumAnimation.e;
+    }
+
+    public ItemStack a(ItemStack itemstack, World world, EntityHuman entityhuman) {
+        if (entityhuman.abilities.canInstantlyBuild || entityhuman.inventory.c(Item.ARROW.id)) {
+            entityhuman.a(itemstack, this.c(itemstack));
+        }
+
+        return itemstack;
+    }
+
+    public int c() {
+        return 1;
+    }
+}

src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java

@@ -5,6 +5,7 @@ import java.util.List;
 
 import net.minecraft.server.ChunkCoordinates;
 import net.minecraft.server.Entity;
+import net.minecraft.server.EntityArrow;
 import net.minecraft.server.EntityBlaze;
 import net.minecraft.server.EntityCaveSpider;
 import net.minecraft.server.EntityChicken;
@@ -51,7 +52,9 @@ import org.bukkit.craftbukkit.entity.CraftLivingEntity;
 import org.bukkit.craftbukkit.entity.CraftPlayer;
 import org.bukkit.craftbukkit.inventory.CraftItemStack;
 import org.bukkit.entity.AnimalTamer;
+import org.bukkit.entity.Arrow;
 import org.bukkit.entity.CreatureType;
+import org.bukkit.entity.LivingEntity;
 import org.bukkit.entity.Player;
 import org.bukkit.event.Event.Type;
 import org.bukkit.event.block.*;
@@ -182,6 +185,24 @@ public class CraftEventFactory {
         return event;
     }
 
+    /**
+     * EntityShootBowEvent
+     */
+    public static EntityShootBowEvent callEntityShootBowEvent(EntityLiving who, ItemStack itemstack, EntityArrow entityArrow, float force) {
+        LivingEntity shooter = (LivingEntity) who.getBukkitEntity();
+        CraftItemStack itemInHand = new CraftItemStack(itemstack);
+        Arrow arrow = (Arrow) entityArrow.getBukkitEntity();
+
+        if (itemInHand != null && (itemInHand.getType() == Material.AIR || itemInHand.getAmount() == 0)) {
+            itemInHand = null;
+        }
+
+        EntityShootBowEvent event = new EntityShootBowEvent(shooter, itemInHand, arrow, force);
+        Bukkit.getPluginManager().callEvent(event);
+
+        return event;
+    }
+
     /**
      * BlockDamageEvent
      */