From 0000000000000000000000000000000000000000 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/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
index 71d539341c2ae8c64befc54ef974daa06a859fa5..e28ccb5651a793775166d51859620882ee54b641 100644
--- a/src/main/java/net/minecraft/world/entity/Entity.java
+++ b/src/main/java/net/minecraft/world/entity/Entity.java
@@ -2641,6 +2641,7 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource {
 
     @Nullable
     public Team getTeam() {
+        if (!this.level.paperConfig().scoreboards.allowNonPlayerEntitiesOnScoreboards && !(this instanceof Player)) { return null; } // Paper
         return this.level.getScoreboard().getPlayersTeam(this.getScoreboardName());
     }
 
diff --git a/src/main/java/net/minecraft/world/entity/LivingEntity.java b/src/main/java/net/minecraft/world/entity/LivingEntity.java
index 87b8a9bb1493d4ff048f0283151cfc5c8ea7d7ef..4e192c98b7beb23ac75b7442883eba7bb98dc475 100644
--- a/src/main/java/net/minecraft/world/entity/LivingEntity.java
+++ b/src/main/java/net/minecraft/world/entity/LivingEntity.java
@@ -823,6 +823,7 @@ public abstract class LivingEntity extends Entity {
         if (nbt.contains("Team", 8)) {
             String s = nbt.getString("Team");
             PlayerTeam scoreboardteam = this.level.getScoreboard().getPlayerTeam(s);
+            if (!level.paperConfig().scoreboards.allowNonPlayerEntitiesOnScoreboards && !(this instanceof net.minecraft.world.entity.player.Player)) { scoreboardteam = null; } // Paper
             boolean flag = scoreboardteam != null && this.level.getScoreboard().addPlayerToTeam(this.getStringUUID(), scoreboardteam);
 
             if (!flag) {