namespace GameConstants{
    static Qt::WindowFlags windows_styles=Qt::Window|Qt::WindowMinimizeButtonHint;
}

class MenuWidget:public QWidget{
    Q_OBJECT
public:
    MenuWidget(const QString& window_name = "", QWidget* parent = 0);
};

class GameWidget:public QWidget{
    Q_OBJECT
public:
    GameWidget(const QString& window_title = GameConstants::window_title, QWidget* parent = 0);
};

class Game:public QObject{
    Q_OBJECT
private:
    MenuWidget* menu_widget;
    GameWidget* game_widget;
public:
    Game(QObject* parent = 0);
};

Game::Game(QObject *parent):QObject(parent){
    menu_widget = new MenuWidget(GameConstants::window_title);
    game_widget = new GameWidget(GameConstants::window_title);

    menu_widget->setWindowFlags(GameConstants::windows_styles);
    game_widget->setWindowFlags(GameConstants::windows_styles);

}