ForgePatch/patches/minecraft/net/minecraft/entity/item/EntityItem.java.patch

--- ../src_base/minecraft/net/minecraft/entity/item/EntityItem.java
+++ ../src_work/minecraft/net/minecraft/entity/item/EntityItem.java
@@ -1,6 +1,11 @@
 package net.minecraft.entity.item;
 
 import java.util.Iterator;
+
+import net.minecraftforge.common.MinecraftForge;
+import net.minecraftforge.event.Event.Result;
+import net.minecraftforge.event.entity.item.ItemExpireEvent;
+import net.minecraftforge.event.entity.player.EntityItemPickupEvent;
 
 import cpw.mods.fml.common.registry.GameRegistry;
 import net.minecraft.block.Block;
@@ -33,6 +38,11 @@
     /** The EntityItem's random initial float height. */
     public float hoverStart = (float)(Math.random() * Math.PI * 2.0D);
 
+    /**
+     * The maximum age of this EntityItem.  The item is expired once this is reached.
+     */
+    public int lifespan = 6000;
+
     public EntityItem(World par1World, double par2, double par4, double par6, ItemStack par8ItemStack)
     {
         super(par1World);
@@ -44,6 +54,7 @@
         this.motionX = (double)((float)(Math.random() * 0.20000000298023224D - 0.10000000149011612D));
         this.motionY = 0.20000000298023224D;
         this.motionZ = (double)((float)(Math.random() * 0.20000000298023224D - 0.10000000149011612D));
+        this.lifespan = (par8ItemStack.getItem() == null ? 6000 : par8ItemStack.getItem().getEntityLifespan(par8ItemStack, par1World));
     }
 
     /**
@@ -124,7 +135,20 @@
 
         ++this.age;
 
-        if (!this.worldObj.isRemote && this.age >= 6000)
+        if (!this.worldObj.isRemote && this.age >= lifespan)
+        {
+            ItemExpireEvent event = new ItemExpireEvent(this, (item.getItem() == null ? 6000 : item.getItem().getEntityLifespan(item, worldObj)));
+            if (MinecraftForge.EVENT_BUS.post(event))
+            {
+                lifespan += event.extraLife;
+            }
+            else
+            {
+                this.setDead();
+            }
+        }
+
+        if (this.item == null || this.item.stackSize <= 0)
         {
             this.setDead();
         }
@@ -240,6 +264,7 @@
     {
         par1NBTTagCompound.setShort("Health", (short)((byte)this.health));
         par1NBTTagCompound.setShort("Age", (short)this.age);
+        par1NBTTagCompound.setInteger("Lifespan", lifespan);
 
         if (this.item != null)
         {
@@ -257,10 +282,15 @@
         NBTTagCompound var2 = par1NBTTagCompound.getCompoundTag("Item");
         this.item = ItemStack.loadItemStackFromNBT(var2);
 
-        if (this.item == null)
+        if (this.item == null || this.item.stackSize <= 0)
         {
             this.setDead();
         }
+
+        if (par1NBTTagCompound.hasKey("Lifespan"))
+        {
+            lifespan = par1NBTTagCompound.getInteger("Lifespan");
+        }
     }
 
     /**
@@ -270,9 +300,21 @@
     {
         if (!this.worldObj.isRemote)
         {
+            if (this.delayBeforeCanPickup > 0)
+            {
+                return;
+            }
+
+            EntityItemPickupEvent event = new EntityItemPickupEvent(par1EntityPlayer, this);
+
+            if (MinecraftForge.EVENT_BUS.post(event))
+            {
+                return;
+            }
+
             int var2 = this.item.stackSize;
 
-            if (this.delayBeforeCanPickup == 0 && par1EntityPlayer.inventory.addItemStackToInventory(this.item))
+            if (this.delayBeforeCanPickup <= 0 && (event.getResult() == Result.ALLOW || var2 <= 0 || par1EntityPlayer.inventory.addItemStackToInventory(this.item)))
             {
                 if (this.item.itemID == Block.wood.blockID)
                 {