1 files changed, 84 insertions, 0 deletions
diff --git a/patches/server/0504-Expand-world-key-API.patch b/patches/server/0504-Expand-world-key-API.patch
new file mode 100644
index 0000000000..17d7ac06c4
--- /dev/null
+++ b/patches/server/0504-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 1963e826548c5a8859c50f57654784c3aef50e44..04a39cb6c13c26e2cb1d73a9da98df5d04df69bc 100644
+--- a/src/main/java/org/bukkit/craftbukkit/CraftRegionAccessor.java
++++ b/src/main/java/org/bukkit/craftbukkit/CraftRegionAccessor.java
+@@ -515,5 +515,10 @@ 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 24c8e9a43affa8ca99c03562aefc3d6402c23281..ec92033fef581e42fb3f36acaba626894b369f56 100644
+--- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
++++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
+@@ -1172,9 +1172,15 @@ 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()) {
+             Preconditions.checkArgument(folder.isDirectory(), "File (%s) exists and isn't a folder", name);
+@@ -1300,7 +1306,7 @@ 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, ResourceLocation.withDefaultNamespace(name.toLowerCase(Locale.ROOT)));
++            worldKey = ResourceKey.create(Registries.DIMENSION, ResourceLocation.fromNamespaceAndPath(creator.key().namespace(), creator.key().value()));
+         }
+ 
+         // If set to not keep spawn in memory (changed from default) then adjust rule accordingly
+@@ -1396,6 +1402,15 @@ 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 7427a81a779b82f96d34a3de228c9d59ee77fea7..7e538a5e742914aa496d76ffe5b450397367cf40 100644
+--- a/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java
++++ b/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java
+@@ -527,6 +527,11 @@ 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
+ 
+     @Override