Added LivingExperienceDropsEvent to change the amount of experience an entity drops

patches/minecraft/net/minecraft/entity/EntityLivingBase.java.patch

@@ -9,6 +9,15 @@
              {
                  this.func_70078_a((Entity)null);
              }
+@@ -316,7 +316,7 @@
+             if (!this.field_70170_p.field_72995_K && (this.field_70718_bc > 0 || this.func_70684_aJ()) && this.func_146066_aG() && this.field_70170_p.func_82736_K().func_82766_b("doMobLoot"))
+             {
+                 i = this.func_70693_a(this.field_70717_bb);
+-
++                i = net.minecraftforge.event.ForgeEventFactory.getExperienceDrop(this, this.field_70717_bb, i);
+                 while (i > 0)
+                 {
+                     int j = EntityXPOrb.func_70527_a(i);
 @@ -377,6 +377,7 @@
      {
          this.field_70755_b = p_70604_1_;

src/main/java/net/minecraftforge/event/ForgeEventFactory.java

@@ -43,6 +43,7 @@ import net.minecraftforge.event.entity.EntityMountEvent;
 import net.minecraftforge.event.entity.EntityStruckByLightningEvent;
 import net.minecraftforge.event.entity.PlaySoundAtEntityEvent;
 import net.minecraftforge.event.entity.item.ItemExpireEvent;
+import net.minecraftforge.event.entity.living.LivingExperienceDropEvent;
 import net.minecraftforge.event.entity.living.LivingHealEvent;
 import net.minecraftforge.event.entity.living.LivingPackSizeEvent;
 import net.minecraftforge.event.entity.living.LivingSpawnEvent;
@@ -143,6 +144,16 @@ public class ForgeEventFactory
         MinecraftForge.EVENT_BUS.post(event);
         return event.getResult();
     }
+    
+    public static int getExperienceDrop(EntityLivingBase entity, EntityPlayer attackingPlayer, int originalExperience)
+    {
+       LivingExperienceDropEvent event = new LivingExperienceDropEvent(entity, attackingPlayer, originalExperience);
+       if (MinecraftForge.EVENT_BUS.post(event))
+       {
+           return 0;
+       }
+       return event.getDroppedExperience();
+    }
 
     public static List<BiomeGenBase.SpawnListEntry> getPotentialSpawns(WorldServer world, EnumCreatureType type, BlockPos pos, List<BiomeGenBase.SpawnListEntry> oldList)
     {

src/main/java/net/minecraftforge/event/entity/living/LivingExperienceDropEvent.java

@@ -0,0 +1,47 @@
+package net.minecraftforge.event.entity.living;
+
+import net.minecraft.entity.EntityLivingBase;
+import net.minecraft.entity.player.EntityPlayer;
+import net.minecraftforge.fml.common.eventhandler.Cancelable;
+
+/**
+ * Event for when an entity drops experience on its death, can be used to change
+ * the amount of experience points dropped or completely prevent dropping of experience
+ * by canceling the event.
+ */
+@Cancelable
+public class LivingExperienceDropEvent extends LivingEvent 
+{
+    final EntityPlayer attackingPlayer;
+    final int originalExperiencePoints;
+
+    int droppedExperiencePoints;
+
+    public LivingExperienceDropEvent(EntityLivingBase entity, EntityPlayer attackingPlayer, int originalExperience)
+    {
+        super(entity);
+
+        this.attackingPlayer = attackingPlayer;
+        this.originalExperiencePoints = this.droppedExperiencePoints = originalExperience;
+    }
+
+    public int getDroppedExperience()
+    {
+        return droppedExperiencePoints;
+    }
+
+    public void setDroppedExperience(int droppedExperience)
+    {
+        this.droppedExperiencePoints = droppedExperience;
+    }
+
+    public EntityPlayer getAttackingPlayer()
+    {
+        return attackingPlayer;
+    }
+
+    public int getOriginalExperience()
+    {
+        return originalExperiencePoints;
+    }
+}