public static void AddLevel(string levelName, SceneRenderer scene)
{
if (!String.IsNullOrEmpty(levelName) &&
!_levels.ContainsKey(levelName))
{
if (_initialized)
{
_mutex.WaitOne();
_levels.Add(levelName, scene);
scene.Load();
_levelsLoaded++;
_mutex.ReleaseMutex();
}
}
}