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 03d5ea7094223be15c96c223ca81bdb8685cc1e7..3bd230370a956a557e0646cc5f92a9a171664876 100644
--- a/src/main/java/net/minecraft/world/entity/Entity.java
+++ b/src/main/java/net/minecraft/world/entity/Entity.java
@@ -2795,6 +2795,7 @@ 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 5dda05f7bf08dec8b48fe0b87aa227c3e0392c6f..ddf083a54015f943e3e00ae6d5f73f8e127f6dc2 100644
--- a/src/main/java/net/minecraft/world/entity/LivingEntity.java
+++ b/src/main/java/net/minecraft/world/entity/LivingEntity.java
@@ -833,6 +833,7 @@ 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) {