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/com/destroystokyo/paper/PaperWorldConfig.java b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
index 6352051ab937d4d365e823a7112e76dc3ec34225..92ddf96f7db08a2b390ef3f49b0643f9d90bbea4 100644
--- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
+++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
@@ -372,4 +372,9 @@ public class PaperWorldConfig {
     private void scanForLegacyEnderDragon() {
         scanForLegacyEnderDragon = getBoolean("game-mechanics.scan-for-legacy-ender-dragon", true);
     }
+
+    public boolean armorStandEntityLookups = true;
+    private void armorStandEntityLookups() {
+        armorStandEntityLookups = getBoolean("armor-stands-do-collision-entity-lookups", true);
+    }
 }
diff --git a/src/main/java/net/minecraft/server/EntityArmorStand.java b/src/main/java/net/minecraft/server/EntityArmorStand.java
index f2938b115aa34158e76da9f974f5746ed43630e1..0330bdf46a3baba169dd226261094a18a6aecf54 100644
--- a/src/main/java/net/minecraft/server/EntityArmorStand.java
+++ b/src/main/java/net/minecraft/server/EntityArmorStand.java
@@ -314,6 +314,7 @@ public class EntityArmorStand extends EntityLiving {
 
     @Override
     protected void collideNearby() {
+        if (!world.paperConfig.armorStandEntityLookups) return; // Paper
         List<Entity> list = this.world.getEntities(this, this.getBoundingBox(), EntityArmorStand.br);
 
         for (int i = 0; i < list.size(); ++i) {
diff --git a/src/main/java/net/minecraft/server/World.java b/src/main/java/net/minecraft/server/World.java
index 6ebf3884a289d0be081d43d012ac10796740cc1e..909e01e458d729f277797bf1dca564f927318460 100644
--- a/src/main/java/net/minecraft/server/World.java
+++ b/src/main/java/net/minecraft/server/World.java
@@ -801,6 +801,13 @@ public abstract class World implements GeneratorAccess, AutoCloseable {
             // Paper end
         }
     }
+    // Paper start - Prevent armor stands from doing entity lookups
+    @Override
+    public boolean getCubes(@Nullable Entity entity, AxisAlignedBB axisAlignedBB) {
+        if (entity instanceof EntityArmorStand && !entity.world.paperConfig.armorStandEntityLookups) return false;
+        return GeneratorAccess.super.getCubes(entity, axisAlignedBB);
+    }
+    // Paper end
 
     public Explosion explode(@Nullable Entity entity, double d0, double d1, double d2, float f, Explosion.Effect explosion_effect) {
         return this.createExplosion(entity, (DamageSource) null, (ExplosionDamageCalculator) null, d0, d1, d2, f, false, explosion_effect);