private void OnPause()
 {
     GuiManager.ShowWindow("UI_PAUSE");
 }
 private void OnSettings()
 {
     GuiManager.ShowWindow("UI_SETTINGS_MENU");
 }
 private void OnMainMenu()
 {
     GuiManager.HideWindow("UI_MAIN_MENU");
     SceneManager.LoadScene("Init");
 }