From 0000000000000000000000000000000000000000 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/world/entity/Mob.java b/src/main/java/net/minecraft/world/entity/Mob.java
index 3500fd0045ad670de818dc170d9c68da643592e0..1f050f1c133e116e861e4e5f7e59875387543659 100644
--- a/src/main/java/net/minecraft/world/entity/Mob.java
+++ b/src/main/java/net/minecraft/world/entity/Mob.java
@@ -668,6 +668,11 @@ public abstract class Mob extends LivingEntity implements Targeting {
                 ItemEntity entityitem = (ItemEntity) iterator.next();
 
                 if (!entityitem.isRemoved() && !entityitem.getItem().isEmpty() && !entityitem.hasPickUpDelay() && this.wantsToPickUp(entityitem.getItem())) {
+                    // Paper Start
+                    if (!entityitem.canMobPickup) {
+                        continue;
+                    }
+                    // Paper End
                     this.pickUpItem(entityitem);
                 }
             }
diff --git a/src/main/java/net/minecraft/world/entity/item/ItemEntity.java b/src/main/java/net/minecraft/world/entity/item/ItemEntity.java
index 23c51152288d9616673ef544a09dd816dff44cf6..2d1b8d6e490e1dcde801feaae2518a59ed35e440 100644
--- a/src/main/java/net/minecraft/world/entity/item/ItemEntity.java
+++ b/src/main/java/net/minecraft/world/entity/item/ItemEntity.java
@@ -52,6 +52,7 @@ public class ItemEntity extends Entity implements TraceableEntity {
     public UUID target;
     public final float bobOffs;
     private int lastTick = MinecraftServer.currentTick - 1; // CraftBukkit
+    public boolean canMobPickup = true; // Paper
 
     public ItemEntity(EntityType<? extends ItemEntity> type, Level world) {
         super(type, world);
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftItem.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftItem.java
index 4fbbc3c76d49c31aadd957ad3a30d479f6c99c15..66e69cb13e2d82acc0a2398625766a49bc701a09 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftItem.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftItem.java
@@ -65,6 +65,18 @@ public class CraftItem extends CraftEntity implements Item {
         }
     }
 
+    // Paper Start
+    @Override
+    public boolean canMobPickup() {
+        return item.canMobPickup;
+    }
+
+    @Override
+    public void setCanMobPickup(boolean canMobPickup) {
+        item.canMobPickup = canMobPickup;
+    }
+    // Paper End
+
     @Override
     public void setOwner(UUID uuid) {
         this.item.setTarget(uuid);