From 634501d0bd202dd5df459b6f2e688c2c98c10bf3 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 50837d767..898068a81 100644
--- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
+++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
@@ -195,4 +195,9 @@ 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/Entity.java b/src/main/java/net/minecraft/server/Entity.java
index f57c5b6a4..dfb7d544f 100644
--- a/src/main/java/net/minecraft/server/Entity.java
+++ b/src/main/java/net/minecraft/server/Entity.java
@@ -2245,6 +2245,7 @@ public abstract class Entity implements INamableTileEntity, ICommandListener, Ke
 
     @Nullable
     public ScoreboardTeamBase getScoreboardTeam() {
+        if (!this.world.paperConfig.nonPlayerEntitiesOnScoreboards && !(this instanceof EntityHuman)) { return null; } // Paper
         return this.world.getScoreboard().getPlayerTeam(this.getName());
     }
 
diff --git a/src/main/java/net/minecraft/server/EntityLiving.java b/src/main/java/net/minecraft/server/EntityLiving.java
index 25982848a..8b8805017 100644
--- a/src/main/java/net/minecraft/server/EntityLiving.java
+++ b/src/main/java/net/minecraft/server/EntityLiving.java
@@ -538,6 +538,7 @@ public abstract class EntityLiving extends Entity {
         if (nbttagcompound.hasKeyOfType("Team", 8)) {
             String s = nbttagcompound.getString("Team");
             ScoreboardTeam scoreboardteam = this.world.getScoreboard().getTeam(s);
+            if (!world.paperConfig.nonPlayerEntitiesOnScoreboards && !(this instanceof EntityHuman)) { scoreboardteam = null; } // Paper
             boolean flag = scoreboardteam != null && this.world.getScoreboard().addPlayerToTeam(this.bu(), scoreboardteam);
 
             if (!flag) {
-- 
2.20.1