From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Shane Freeder <theboyetronic@gmail.com>
Date: Wed, 28 Sep 2022 05:09:11 +0100
Subject: [PATCH] Add WorldUnloadResult


diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
index 111f8276f26350a5c62a7b8577b4598978b5355d..8843c966eeeb8cc009df43cf04aae713466dbda0 100644
--- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
@@ -1269,30 +1269,41 @@ public final class CraftServer implements Server {
 
     @Override
     public boolean unloadWorld(World world, boolean save) {
+        // Paper start
+        return unloadWorld_(world, save).isSuccess();
+    }
+
+    public io.papermc.paper.world.WorldUnloadResult unloadWorld_(World world, boolean save) {
+        // paper end
         //Preconditions.checkState(!this.console.isIteratingOverLevels, "Cannot unload a world while worlds are being ticked"); // Paper - Cat - Temp disable. We'll see how this goes.
         if (world == null) {
-            return false;
+            return io.papermc.paper.world.WorldUnloadResult.NULL; // Just, why... // paper
         }
 
         ServerLevel handle = ((CraftWorld) world).getHandle();
 
         if (this.console.getLevel(handle.dimension()) == null) {
-            return false;
+            return io.papermc.paper.world.WorldUnloadResult.NOT_LOADED; // paper
         }
 
         if (handle.dimension() == net.minecraft.world.level.Level.OVERWORLD) {
-            return false;
+            return io.papermc.paper.world.WorldUnloadResult.UNSUPPORTED; // Paper
         }
 
-        if (handle.players().size() > 0 || handle.pendingLogin.size() > 0) { // Paper
-            return false;
+        // Paper start - replace return, and differentiante
+        if (handle.players().size() > 0) {
+            return io.papermc.paper.world.WorldUnloadResult.NOT_EMPTY;
+        }
+        if (handle.pendingLogin.size() > 0) {
+            return io.papermc.paper.world.WorldUnloadResult.PENDING_LOGIN;
         }
+        // Paper end
 
         WorldUnloadEvent e = new WorldUnloadEvent(handle.getWorld());
         this.pluginManager.callEvent(e);
 
         if (e.isCancelled()) {
-            return false;
+            return io.papermc.paper.world.WorldUnloadResult.PLUGIN;
         }
 
         try {
@@ -1309,7 +1320,7 @@ public final class CraftServer implements Server {
 
         this.worlds.remove(world.getName().toLowerCase(java.util.Locale.ENGLISH));
         this.console.removeLevel(handle);
-        return true;
+        return io.papermc.paper.world.WorldUnloadResult.SUCCESS;
     }
 
     public DedicatedServer getServer() {