From 9567aaa67ebbdbfc570e398ba6d9a5ee7676bb59 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Tue, 8 Mar 2016 23:25:45 -0500
Subject: [PATCH] Disable Scoreboards for non players by default

Entities collision is checking for scoreboards setting.
This is very heavy to do map lookups for every collision to check
this setting.

So avoid looking up scoreboards and short circuit to the "not on a team"
logic which is most likely to be true.

diff --git a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
index 034369a..308dfdd 100644
--- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
+++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
@@ -264,4 +264,9 @@ public class PaperWorldConfig {
     private void disableTeleportationSuffocationCheck() {
         disableTeleportationSuffocationCheck = getBoolean("disable-teleportation-suffocation-check", false);
     }
+
+    public boolean nonPlayerEntitiesOnScoreboards = false;
+    private void nonPlayerEntitiesOnScoreboards() {
+        nonPlayerEntitiesOnScoreboards = getBoolean("allow-non-player-entities-on-scoreboards", false);
+    }
 }
diff --git a/src/main/java/net/minecraft/server/CommandScoreboard.java b/src/main/java/net/minecraft/server/CommandScoreboard.java
index 5f579bc..8e5419d 100644
--- a/src/main/java/net/minecraft/server/CommandScoreboard.java
+++ b/src/main/java/net/minecraft/server/CommandScoreboard.java
@@ -491,6 +491,7 @@ public class CommandScoreboard extends CommandAbstract {
 
                     while (iterator.hasNext()) {
                         Entity entity = (Entity) iterator.next();
+                        if (!entity.world.paperConfig.nonPlayerEntitiesOnScoreboards && !(entity instanceof EntityHuman)) { continue; } // Paper
                         String s2 = e(minecraftserver, icommandlistener, entity.bf());
 
                         if (scoreboard.addPlayerToTeam(s2, s)) {
diff --git a/src/main/java/net/minecraft/server/Entity.java b/src/main/java/net/minecraft/server/Entity.java
index 2dfe212..f192fe5 100644
--- a/src/main/java/net/minecraft/server/Entity.java
+++ b/src/main/java/net/minecraft/server/Entity.java
@@ -1882,6 +1882,7 @@ public abstract class Entity implements ICommandListener {
 
     @Nullable
     public ScoreboardTeamBase aQ() {
+        if (!this.world.paperConfig.nonPlayerEntitiesOnScoreboards && !(this instanceof EntityHuman)) { return null; } // Paper
         return this.world.getScoreboard().getPlayerTeam(this.bf());
     }
 
-- 
2.8.3