From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Hugo Manrique <hugmanrique@gmail.com>
Date: Mon, 23 Jul 2018 12:57:39 +0200
Subject: [PATCH] Option to prevent armor stands from doing entity lookups


diff --git a/src/main/java/net/minecraft/world/entity/decoration/ArmorStand.java b/src/main/java/net/minecraft/world/entity/decoration/ArmorStand.java
index c9c773cce59e795ed0d8449a6e70b4b968a4e5e8..eb4f8d3a0012f5732a2faa53d0b886da593ed43a 100644
--- a/src/main/java/net/minecraft/world/entity/decoration/ArmorStand.java
+++ b/src/main/java/net/minecraft/world/entity/decoration/ArmorStand.java
@@ -337,6 +337,7 @@ public class ArmorStand extends LivingEntity {
 
     @Override
     protected void pushEntities() {
+        if (!this.level().paperConfig().entities.armorStands.doCollisionEntityLookups) return; // Paper
         List<Entity> list = this.level().getEntities((Entity) this, this.getBoundingBox(), ArmorStand.RIDABLE_MINECARTS);
         Iterator iterator = list.iterator();
 
diff --git a/src/main/java/net/minecraft/world/level/Level.java b/src/main/java/net/minecraft/world/level/Level.java
index 82cd225802ecc518c34426c010525192ef544f34..0dce77c1e773d2dd9c3471b2a71ba6aaa76f9054 100644
--- a/src/main/java/net/minecraft/world/level/Level.java
+++ b/src/main/java/net/minecraft/world/level/Level.java
@@ -860,6 +860,13 @@ public abstract class Level implements LevelAccessor, AutoCloseable {
             // Paper end
         }
     }
+    // Paper start - Prevent armor stands from doing entity lookups
+    @Override
+    public boolean noCollision(@Nullable Entity entity, AABB box) {
+        if (entity instanceof net.minecraft.world.entity.decoration.ArmorStand && !entity.level().paperConfig().entities.armorStands.doCollisionEntityLookups) return false;
+        return LevelAccessor.super.noCollision(entity, box);
+    }
+    // Paper end
 
     public boolean shouldTickDeath(Entity entity) {
         return true;