void Start()
    {
        // model
        model = new ShieldModel();

        //view
        view = new ShieldView();
        view.SetModel(model);
        view.SetUIText(textStrength, textIsRepairable);
        view.Refresh();

        //controller
        controller = new ShieldController();
        controller.SetModel(model);
        controller.SetView(view);
        controller.SetButtonOne(DamageOne);
        controller.SetButtonTen(DamageTen);
        controller.SetButtonTick(ButtonTick);
    }