From d59a01eaa5f962e8616dd5b2916f194ca8636432 Mon Sep 17 00:00:00 2001
From: BillyGalbreath <Blake.Galbreath@GMail.com>
Date: Fri, 5 May 2017 03:57:17 -0500
Subject: [PATCH] Item#canEntityPickup


diff --git a/src/main/java/net/minecraft/server/EntityInsentient.java b/src/main/java/net/minecraft/server/EntityInsentient.java
index 3723fd9770..14d122b22b 100644
--- a/src/main/java/net/minecraft/server/EntityInsentient.java
+++ b/src/main/java/net/minecraft/server/EntityInsentient.java
@@ -512,6 +512,11 @@ public abstract class EntityInsentient extends EntityLiving {
                 EntityItem entityitem = (EntityItem) iterator.next();
 
                 if (!entityitem.dead && !entityitem.getItemStack().isEmpty() && !entityitem.q()) {
+                    // Paper Start
+                    if (!entityitem.canMobPickup) {
+                        continue;
+                    }
+                    // Paper End
                     this.a(entityitem);
                 }
             }
diff --git a/src/main/java/net/minecraft/server/EntityItem.java b/src/main/java/net/minecraft/server/EntityItem.java
index 4af09f5cdb..f2a4476c5c 100644
--- a/src/main/java/net/minecraft/server/EntityItem.java
+++ b/src/main/java/net/minecraft/server/EntityItem.java
@@ -13,6 +13,7 @@ public class EntityItem extends Entity {
     private static final DataWatcherObject<ItemStack> b = DataWatcher.a(EntityItem.class, DataWatcherRegistry.g);
     private int age;
     public int pickupDelay;
+    public boolean canMobPickup = true; // Paper
     private int e;
     private UUID f;
     private UUID g;
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftItem.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftItem.java
index a17a537d69..1df17f09bb 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftItem.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftItem.java
@@ -37,6 +37,16 @@ public class CraftItem extends CraftEntity implements Item {
         item.pickupDelay = Math.min(delay, Short.MAX_VALUE);
     }
 
+    // Paper Start
+    public boolean canMobPickup() {
+        return item.canMobPickup;
+    }
+
+    public void setCanMobPickup(boolean canMobPickup) {
+        item.canMobPickup = canMobPickup;
+    }
+    // Paper End
+
     @Override
     public String toString() {
         return "CraftItem";
-- 
2.18.0