From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jake Potrebic <jake.m.potrebic@gmail.com>
Date: Sat, 12 Nov 2022 10:08:58 -0800
Subject: [PATCH] ensure reset EnderDragon boss event name

Fix MC-257487

diff --git a/src/main/java/net/minecraft/world/level/dimension/end/EndDragonFight.java b/src/main/java/net/minecraft/world/level/dimension/end/EndDragonFight.java
index 44f799d595d7150f00dfdfa2f85c87386f896607..390542c42fe957e8e2d21c879c1c8908c8970b44 100644
--- a/src/main/java/net/minecraft/world/level/dimension/end/EndDragonFight.java
+++ b/src/main/java/net/minecraft/world/level/dimension/end/EndDragonFight.java
@@ -73,6 +73,7 @@ public class EndDragonFight {
     private static final int GATEWAY_DISTANCE = 96;
     public static final int DRAGON_SPAWN_Y = 128;
     private final Predicate<Entity> validPlayer;
+    private static final Component DEFAULT_BOSS_EVENT_NAME = Component.translatable("entity.minecraft.ender_dragon"); // Paper
     public final ServerBossEvent dragonEvent;
     public final ServerLevel level;
     private final BlockPos origin;
@@ -101,7 +102,7 @@ public class EndDragonFight {
     }
 
     public EndDragonFight(ServerLevel world, long gatewaysSeed, EndDragonFight.Data data, BlockPos origin) {
-        this.dragonEvent = (ServerBossEvent) (new ServerBossEvent(Component.translatable("entity.minecraft.ender_dragon"), BossEvent.BossBarColor.PINK, BossEvent.BossBarOverlay.PROGRESS)).setPlayBossMusic(true).setCreateWorldFog(true);
+        this.dragonEvent = (ServerBossEvent) (new ServerBossEvent(DEFAULT_BOSS_EVENT_NAME, BossEvent.BossBarColor.PINK, BossEvent.BossBarOverlay.PROGRESS)).setPlayBossMusic(true).setCreateWorldFog(true); // Paper
         this.gateways = new ObjectArrayList();
         this.ticksSinceLastPlayerScan = 21;
         this.skipArenaLoadedCheck = false;
@@ -503,6 +504,10 @@ public class EndDragonFight {
             this.ticksSinceDragonSeen = 0;
             if (dragon.hasCustomName()) {
                 this.dragonEvent.setName(dragon.getDisplayName());
+                // Paper start - reset to default name
+            } else {
+                this.dragonEvent.setName(DEFAULT_BOSS_EVENT_NAME);
+                // Paper end
             }
         }