From 93bc8ecd93a9b495a8fbc76b8ccf589418a450f3 Mon Sep 17 00:00:00 2001
From: Aidan Matzko <amatzko48@gmail.com>
Date: Sat, 21 Jan 2012 21:28:32 -0500
Subject: [PATCH] [Bleeding] Implemented Sheep, Shear and EntityChangeBlock
 API. Thanks tips48! Closes BUKKIT-512

---
 .../net/minecraft/server/EntitySheep.java     | 58 ++++++++++++++++---
 .../java/net/minecraft/server/ItemDye.java    | 13 ++++-
 2 files changed, 63 insertions(+), 8 deletions(-)

diff --git a/src/main/java/net/minecraft/server/EntitySheep.java b/src/main/java/net/minecraft/server/EntitySheep.java
index b10dac1d96..28ac80704d 100644
--- a/src/main/java/net/minecraft/server/EntitySheep.java
+++ b/src/main/java/net/minecraft/server/EntitySheep.java
@@ -1,7 +1,12 @@
 package net.minecraft.server;
 
 import java.util.Random;
+
+// CraftBukkit start
+import org.bukkit.Material;
 import org.bukkit.craftbukkit.event.CraftEventFactory;
+import org.bukkit.event.entity.EntityChangeBlockEvent;
+// CraftBukkit end
 
 public class EntitySheep extends EntityAnimal {
 
@@ -73,17 +78,47 @@ public class EntitySheep extends EntityAnimal {
             boolean flag = false;
 
             if (this.world.getTypeId(i, j, k) == Block.LONG_GRASS.id) {
-                this.world.f(2001, i, j, k, Block.LONG_GRASS.id + 256);
-                this.world.setTypeId(i, j, k, 0);
-                flag = true;
+                // CraftBukkit start
+                org.bukkit.World bworld = this.world.getWorld();
+                org.bukkit.block.Block bblock = bworld.getBlockAt(i, j, k);
+
+                EntityChangeBlockEvent event = new EntityChangeBlockEvent(this.getBukkitEntity(), bblock, Material.AIR);
+                this.world.getServer().getPluginManager().callEvent(event);
+
+                if (!event.isCancelled()) {
+                    this.world.f(2001, i, j, k, Block.LONG_GRASS.id + 256);
+                    this.world.setTypeId(i, j, k, 0);
+                    flag = true;
+                }
+                // CraftBukkit end
             } else if (this.world.getTypeId(i, j - 1, k) == Block.GRASS.id) {
-                this.world.f(2001, i, j - 1, k, Block.GRASS.id);
-                this.world.setTypeId(i, j - 1, k, Block.DIRT.id);
-                flag = true;
+                // CraftBukkit start
+                org.bukkit.World bworld = this.world.getWorld();
+                org.bukkit.block.Block bblock = bworld.getBlockAt(i, j - 1, k);
+
+                EntityChangeBlockEvent event = new EntityChangeBlockEvent(this.getBukkitEntity(), bblock, Material.DIRT);
+                this.world.getServer().getPluginManager().callEvent(event);
+
+                if (!event.isCancelled()) {
+                    this.world.f(2001, i, j - 1, k, Block.GRASS.id);
+                    this.world.setTypeId(i, j - 1, k, Block.DIRT.id);
+                    flag = true;
+                }
+                // CraftBukkit end
             }
 
             if (flag) {
-                this.setSheared(false);
+               // CraftBukkit start
+                if (!this.isBaby()) {
+                    org.bukkit.event.entity.SheepRegrowWoolEvent event = new org.bukkit.event.entity.SheepRegrowWoolEvent(this.getBukkitEntity());
+                    this.world.getServer().getPluginManager().callEvent(event);
+
+                    if (!event.isCancelled()) {
+                        this.setSheared(false);
+                    }
+                }
+                // CraftBukkit end
+
                 if (this.isBaby()) {
                     int l = this.getAge() + 1200;
 
@@ -106,6 +141,15 @@ public class EntitySheep extends EntityAnimal {
 
         if (itemstack != null && itemstack.id == Item.SHEARS.id && !this.isSheared() && !this.isBaby()) {
             if (!this.world.isStatic) {
+                // CraftBukkit start
+                org.bukkit.event.player.PlayerShearEntityEvent event = new org.bukkit.event.player.PlayerShearEntityEvent((org.bukkit.entity.Player) entityhuman.getBukkitEntity(), this.getBukkitEntity());
+                this.world.getServer().getPluginManager().callEvent(event);
+
+                if (event.isCancelled()) {
+                    return false;
+                }
+                // CraftBukkit end
+
                 this.setSheared(true);
                 int i = 1 + this.random.nextInt(3);
 
diff --git a/src/main/java/net/minecraft/server/ItemDye.java b/src/main/java/net/minecraft/server/ItemDye.java
index 37ad55133a..1bb284b64d 100644
--- a/src/main/java/net/minecraft/server/ItemDye.java
+++ b/src/main/java/net/minecraft/server/ItemDye.java
@@ -113,7 +113,18 @@ public class ItemDye extends Item {
             int i = BlockCloth.d(itemstack.getData());
 
             if (!entitysheep.isSheared() && entitysheep.getColor() != i) {
-                entitysheep.setColor(i);
+                // CraftBukkit start
+                byte bColor = new Integer(i).byteValue();
+                org.bukkit.event.entity.SheepDyeWoolEvent event = new org.bukkit.event.entity.SheepDyeWoolEvent(entitysheep.getBukkitEntity(), org.bukkit.DyeColor.getByData(bColor));
+                entitysheep.world.getServer().getPluginManager().callEvent(event);
+
+                if (event.isCancelled()) {
+                    return;
+                }
+
+                int iColor = new Byte(event.getColor().getData()).intValue();
+                entitysheep.setColor(iColor);
+                // CraftBukkit end
                 --itemstack.count;
             }
         }