get's a map by its mxid

application/core/Maps/MapManager.php

@@ -470,6 +470,21 @@ class MapManager implements CallbackListener {
 		return null;
 	}
 
+	/**
+	 * Get's a Map by it's Mania-Exchange Id
+	 *
+	 * @param $mxId
+	 * @return Map
+	 */
+	public function getMapByMxId($mxId) {
+		foreach ($this->maps as $map) {
+			if ($map->mx->id == $mxId) {
+				return $map;
+			}
+		}
+		return null;
+	}
+
 	/**
 	 * Updates the full Map list, needed on Init, addMap and on ShuffleMaps
 	 */