Paper/patches/server/0443-Spawn-player-in-correct-world-on-login.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Wyatt Childers <wchilders@nearce.com>
Date: Fri, 3 Jul 2020 14:57:05 -0400
Subject: [PATCH] Spawn player in correct world on login


diff --git a/src/main/java/net/minecraft/server/players/PlayerList.java b/src/main/java/net/minecraft/server/players/PlayerList.java
index 68701c1de6d7060f65648b1404209e8c9891fccc..75ff056a8e68a1286ef6bd7fec841721951e1344 100644
--- a/src/main/java/net/minecraft/server/players/PlayerList.java
+++ b/src/main/java/net/minecraft/server/players/PlayerList.java
@@ -202,7 +202,18 @@ public abstract class PlayerList {
         }
         // CraftBukkit end
 
-        if (nbttagcompound != null) {
+        // Paper start - move logic in Entity to here, to use bukkit supplied world UUID.
+        if (nbttagcompound != null && nbttagcompound.contains("WorldUUIDMost") && nbttagcompound.contains("WorldUUIDLeast")) {
+            UUID uid = new UUID(nbttagcompound.getLong("WorldUUIDMost"), nbttagcompound.getLong("WorldUUIDLeast"));
+            org.bukkit.World bWorld = org.bukkit.Bukkit.getServer().getWorld(uid);
+            if (bWorld != null) {
+                resourcekey = ((CraftWorld) bWorld).getHandle().dimension();
+            } else {
+                resourcekey = Level.OVERWORLD;
+            }
+        } else if (nbttagcompound != null) {
+            // Vanilla migration support
+            // Paper end
             DataResult<ResourceKey<Level>> dataresult = DimensionType.parseLegacy(new Dynamic(NbtOps.INSTANCE, nbttagcompound.get("Dimension"))); // CraftBukkit - decompile error
             Logger logger = PlayerList.LOGGER;