public MainPage()
{
InitializeComponent();
SoundPlayer.FillDictionary(App.Current.Resources.MergedDictionaries[0]);
SoundPlayer.BackgroundMusic.FillBgDictionary(App.Current.Resources.MergedDictionaries[1]);
TextHandler.FillDictionary(App.Current.Resources.MergedDictionaries[2]);
this.GotFocus += MainPageGotFocus;
this.LostFocus += MainPageLostFocus;
_keyHandler = new KeyHandler(this);
_menuEngine = new MenuEngine(this.gameSurface);
_menuEngine.Updated += MenuEngineUpdated;
_levelEngine = new LevelEngine(new Canvas());
_levelEngine.Renewed += LevelEngineRenewed;
_hudEngine = new HudEngine(new Canvas());
_scoreEngine = new ScoreEngine(new Canvas(), 10);
Level.Player = Player = new Player();
_renderNotifier = new RenderNotifier(this);
_renderNotifier.AddObservedChild(this.gameSurface);
_renderNotifier.RenderComplete += RenderNotifierRenderComplete;
_mainLoop = new CompositionTargetGameLoop();
_mainLoop.Update += MainLoopUpdate;
}