public XGameAppStateLeaveCurrScene(XGameApp app) : base(app) { }
public XGameAppStateChangeScene(XGameApp app) : base(app) { }
public XGameAppStateEnterNextScene(XGameApp app) : base(app) { }
public XGameAppState(XGameApp app) { m_app = app; }
public XGameAppStateHandleAssets(XGameApp app) : base(app) { }