1 files changed, 84 insertions, 0 deletions
diff --git a/patches/server/0572-Expand-world-key-API.patch b/patches/server/0572-Expand-world-key-API.patch
new file mode 100644
index 0000000000..f86cd7dd43
--- /dev/null
+++ b/patches/server/0572-Expand-world-key-API.patch
@@ -0,0 +1,84 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Jake Potrebic <[email protected]>
+Date: Wed, 6 Jan 2021 00:34:04 -0800
+Subject: [PATCH] Expand world key API
+
+
+diff --git a/src/main/java/org/bukkit/craftbukkit/CraftRegionAccessor.java b/src/main/java/org/bukkit/craftbukkit/CraftRegionAccessor.java
+index 5f9c3c237b65986f8c425bbc691ac301f8fdebbc..cb7ceaaaf4e8deec78962660298fa5316f8c5a63 100644
+--- a/src/main/java/org/bukkit/craftbukkit/CraftRegionAccessor.java
++++ b/src/main/java/org/bukkit/craftbukkit/CraftRegionAccessor.java
+@@ -990,5 +990,10 @@ public abstract class CraftRegionAccessor implements RegionAccessor {
+     public io.papermc.paper.world.MoonPhase getMoonPhase() {
+         return io.papermc.paper.world.MoonPhase.getPhase(this.getHandle().dayTime() / 24000L);
+     }
++
++    @Override
++    public org.bukkit.NamespacedKey getKey() {
++        return org.bukkit.craftbukkit.util.CraftNamespacedKey.fromMinecraft(this.getHandle().getLevel().dimension().location());
++    }
+     // Paper end
+ }
+diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
+index faa073683fae16578aaa83eefc447cd2740a3491..8b9b433dd1e835abc78ca074dbfe688f834625a9 100644
+--- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
++++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
+@@ -1153,9 +1153,15 @@ public final class CraftServer implements Server {
+         File folder = new File(this.getWorldContainer(), name);
+         World world = this.getWorld(name);
+ 
+-        if (world != null) {
+-            return world;
++        // Paper start
++        World worldByKey = this.getWorld(creator.key());
++        if (world != null || worldByKey != null) {
++            if (world == worldByKey) {
++                return world;
++            }
++            throw new IllegalArgumentException("Cannot create a world with key " + creator.key() + " and name " + name + " one (or both) already match a world that exists");
+         }
++        // Paper end
+ 
+         if ((folder.exists()) && (!folder.isDirectory())) {
+             throw new IllegalArgumentException("File exists with the name '" + name + "' and isn't a folder");
+@@ -1244,7 +1250,7 @@ public final class CraftServer implements Server {
+         } else if (name.equals(levelName + "_the_end")) {
+             worldKey = net.minecraft.world.level.Level.END;
+         } else {
+-            worldKey = ResourceKey.create(Registries.DIMENSION, new ResourceLocation(name.toLowerCase(java.util.Locale.ENGLISH)));
++            worldKey = ResourceKey.create(Registries.DIMENSION, new net.minecraft.resources.ResourceLocation(creator.key().getNamespace().toLowerCase(java.util.Locale.ENGLISH), creator.key().getKey().toLowerCase(java.util.Locale.ENGLISH))); // Paper
+         }
+ 
+         ServerLevel internal = (ServerLevel) new ServerLevel(this.console, console.executor, worldSession, worlddata, worldKey, worlddimension, this.getServer().progressListenerFactory.create(11),
+@@ -1336,6 +1342,15 @@ public final class CraftServer implements Server {
+         return null;
+     }
+ 
++    // Paper start
++    @Override
++    public World getWorld(NamespacedKey worldKey) {
++        ServerLevel worldServer = console.getLevel(ResourceKey.create(net.minecraft.core.registries.Registries.DIMENSION, CraftNamespacedKey.toMinecraft(worldKey)));
++        if (worldServer == null) return null;
++        return worldServer.getWorld();
++    }
++    // Paper end
++
+     public void addWorld(World world) {
+         // Check if a World already exists with the UID.
+         if (this.getWorld(world.getUID()) != null) {
+diff --git a/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java b/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java
+index fbb674d355f30f34de6bb9608e628d5c49047be6..8e92454f435a43a78007ef607f15a94d2ac980ae 100644
+--- a/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java
++++ b/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java
+@@ -525,6 +525,11 @@ public final class CraftMagicNumbers implements UnsafeValues {
+     public int nextEntityId() {
+         return net.minecraft.world.entity.Entity.nextEntityId();
+     }
++
++    @Override
++    public String getMainLevelName() {
++        return ((net.minecraft.server.dedicated.DedicatedServer) net.minecraft.server.MinecraftServer.getServer()).getProperties().levelName;
++    }
+     // Paper end
+ 
+     /**