From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Zach Brown <zach.brown@destroystokyo.com>
Date: Wed, 6 Apr 2016 01:04:23 -0500
Subject: [PATCH] Option to use vanilla per-world scoreboard coloring on names

This change is basically a bandaid to fix CB's complete and utter lack
of support for vanilla scoreboard name modifications.

In the future, finding a way to merge the vanilla expectations in with
bukkit's concept of a display name would be preferable. There was a PR
for this on CB at one point but I can't find it. We may need to do this
ourselves at some point in the future.

diff --git a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
index db2dddd12f54e6d15916c4cee623676541de37fb..1942f5224aaebb18adb591d6f70a419cfc1a7bdd 100644
--- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
+++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
@@ -254,4 +254,9 @@ public class PaperWorldConfig {
         grassUpdateRate = Math.max(0, getInt("grass-spread-tick-rate", grassUpdateRate));
         log("Grass Spread Tick Rate: " + grassUpdateRate);
     }
+
+    public boolean useVanillaScoreboardColoring;
+    private void useVanillaScoreboardColoring() {
+        useVanillaScoreboardColoring = getBoolean("use-vanilla-world-scoreboard-name-coloring", false);
+    }
 }
diff --git a/src/main/java/io/papermc/paper/adventure/ChatProcessor.java b/src/main/java/io/papermc/paper/adventure/ChatProcessor.java
index 909968952a7ae2aa0196f12d1b3177cade380db2..1fcb01abc93c3c6ad172f209f55421d8b98629d5 100644
--- a/src/main/java/io/papermc/paper/adventure/ChatProcessor.java
+++ b/src/main/java/io/papermc/paper/adventure/ChatProcessor.java
@@ -17,7 +17,11 @@ import net.kyori.adventure.text.event.ClickEvent;
 import net.minecraft.network.chat.IChatBaseComponent;
 import net.minecraft.server.MinecraftServer;
 import net.minecraft.server.level.EntityPlayer;
+import net.minecraft.world.scores.ScoreboardTeam;
+import net.minecraft.world.scores.ScoreboardTeamBase;
 import org.bukkit.Bukkit;
+import org.bukkit.ChatColor;
+import org.bukkit.craftbukkit.CraftWorld;
 import org.bukkit.craftbukkit.entity.CraftPlayer;
 import org.bukkit.craftbukkit.util.LazyPlayerSet;
 import org.bukkit.craftbukkit.util.Waitable;
@@ -179,10 +183,22 @@ public final class ChatProcessor {
     }
 
     private static String legacyDisplayName(final CraftPlayer player) {
+        if (((CraftWorld) player.getWorld()).getHandle().paperConfig.useVanillaScoreboardColoring) {
+            final EntityPlayer ep = player.getHandle();
+            IChatBaseComponent name = ep.getDisplayName();
+            final ScoreboardTeamBase team = ep.getScoreboardTeam();
+            if (team != null) {
+                name = team.getFormattedName(name);
+            }
+            return PaperAdventure.LEGACY_SECTION_UXRC.serialize(PaperAdventure.asAdventure(name)) + ChatColor.RESET;
+        }
         return player.getDisplayName();
     }
 
     private static Component displayName(final CraftPlayer player) {
+        if (((CraftWorld) player.getWorld()).getHandle().paperConfig.useVanillaScoreboardColoring) {
+            return PaperAdventure.asAdventure(ScoreboardTeam.a(player.getHandle().getScoreboardTeam(), player.getHandle().getDisplayName()));
+        }
         return player.displayName();
     }