public UnityTutorialEngine(UnityInstructionPresenterViewModel instructionPresenter)
    {
        _tutorialController = new TutorialController();

        // Set up presenters
        _tutorialController.AddPresenter(instructionPresenter);
        _tutorialController.AddPresenter(new UnityFileSystemPresenter());
    }
 public UnityTutorialEngineEditorWindow()
 {
     _viewModel = new UnityInstructionPresenterViewModel();
     _engine    = new UnityTutorialEngine(_viewModel);
 }