PaperMC/nms-patches/EntitySheep.patch

--- a/net/minecraft/server/EntitySheep.java
+++ b/net/minecraft/server/EntitySheep.java
@@ -4,12 +4,25 @@
 import java.util.Map;
 import java.util.Random;
 
+// CraftBukkit start
+import org.bukkit.event.entity.SheepRegrowWoolEvent;
+import org.bukkit.event.player.PlayerShearEntityEvent;
+import org.bukkit.inventory.InventoryView;
+// CraftBukkit end
+
 public class EntitySheep extends EntityAnimal {
 
     private final InventoryCrafting bm = new InventoryCrafting(new Container() {
         public boolean a(EntityHuman entityhuman) {
             return false;
         }
+
+        // CraftBukkit start
+        @Override
+        public InventoryView getBukkitView() {
+            return null; // TODO: O.O
+        }
+        // CraftBukkit end
     }, 2, 1);
     private static final Map<EnumColor, float[]> bo = Maps.newEnumMap(EnumColor.class);
     private int bp;
@@ -34,6 +47,7 @@
         this.goalSelector.a(8, new PathfinderGoalRandomLookaround(this));
         this.bm.setItem(0, new ItemStack(Items.DYE, 1, 0));
         this.bm.setItem(1, new ItemStack(Items.DYE, 1, 0));
+        this.bm.resultInventory = new InventoryCraftResult(); // CraftBukkit - add result slot for event
     }
 
     protected void E() {
@@ -86,6 +100,15 @@
 
         if (itemstack != null && itemstack.getItem() == Items.SHEARS && !this.isSheared() && !this.isBaby()) {
             if (!this.world.isClientSide) {
+                // CraftBukkit start
+                PlayerShearEntityEvent event = new 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);
 
@@ -173,7 +196,14 @@
     }
 
     public void v() {
-        this.setSheared(false);
+        // CraftBukkit start
+        SheepRegrowWoolEvent event = new SheepRegrowWoolEvent((org.bukkit.entity.Sheep) this.getBukkitEntity());
+        this.world.getServer().getPluginManager().callEvent(event);
+
+        if (!event.isCancelled()) {
+            this.setSheared(false);
+        }
+        // CraftBukkit end
         if (this.isBaby()) {
             this.setAge(60);
         }