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 faf60cc9c4a3bfd7c30b07bb1b3fbabaaffd1d6d..47369a5cdf37872fa91daf6425f7cfacbbdeec69 100644
--- a/src/main/java/net/minecraft/world/entity/Entity.java
+++ b/src/main/java/net/minecraft/world/entity/Entity.java
@@ -2805,6 +2805,7 @@ 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 fcc82ba0c632362285903bcdcc6c65069419f295..a8835f87a8961dd8c32dc9b17b8656ee12c23f96 100644
--- a/src/main/java/net/minecraft/world/entity/LivingEntity.java
+++ b/src/main/java/net/minecraft/world/entity/LivingEntity.java
@@ -834,6 +834,7 @@ public abstract class LivingEntity extends Entity implements Attackable {
         if (nbt.contains("Team", 8)) {
             String s = nbt.getString("Team");
             PlayerTeam scoreboardteam = this.level().getScoreboard().getPlayerTeam(s);
+            if (!this.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) {