pick world automatically when only one is present

web/chunkymap.php

@@ -1519,22 +1519,48 @@ function check_world() {
 	global $world_name;
 	global $chunkymapdata_worlds_path;
 	global $auto_choose_enable;
+	$non_world_world_count = 0;
+	$world_count = 0;
+	$non_world_world_name = null;
+	$last_world_name = null;
 	
-	
-	if ($auto_choose_enable===true) {
 	if (!isset($world_name)) {
 		if ($handle = opendir($chunkymapdata_worlds_path)) {
 			while (false !== ($file_name = readdir($handle))) {
 				if (substr($file_name, 0, 1) != ".") {
 					$file_path = $chunkymapdata_worlds_path."/".$file_name;
 					if (is_dir($file_path)) {
+						//$world_name=$file_name;
+						//break;
+						if ($file_name!="world") {
+							$non_world_world_name = $file_name;
+							if ($auto_choose_enable===true) {
 								$world_name = $file_name;
-							break;
+							}
+							$non_world_world_count++;
+						}
+						$last_world_name = $file_name;
+						$world_count++;
 					}
 				}
 			}
 			closedir($handle);
 		}
+		if ($world_count==1) {
+			$world_name = $last_world_name;
+		}
+		//elseif ($non_world_world_count==1) { //assumes you want the one not called world (not a great assumption)
+		//	$world_name = $non_world_world_name;
+		//}
+		else {
+			if ($auto_choose_enable===true) {
+				if ($non_world_world_name==null) {
+					$world_name = $last_world_name;
+				}
+				else {
+					$world_name = $non_world_world_name;
+				}
+			}
 		}
 	}
 	if (isset($world_name)) {