private void Awake()
 {
     SetUpSingleton();
     difficulty = SettingsPlayerPrefsManager.GetSavedDifficulty();
     mapSize    = SettingsPlayerPrefsManager.GetSavedMapSize();
 }
 public static void SaveMapSize(GameValuesController.MapSize mapSize)
 {
     PlayerPrefs.SetString(MAP_SIZE_PLAYERPREFS_KEY, mapSize.ToString());
 }