触摸事件没有在libgdx sprite上注册

Question

我正在使用libgdx进行纸牌游戏，但我遇到了僵局。

1. 未检测到精灵的触碰或点击。

2. 我的主板上有额外的空间，

   中没有

   平铺地图文件。 我做了一个简单的项目来说明我的问题。 这里有一个可编辑的项目，它在其肠道https://dl.dropboxusercontent.com/u/51343591/card.zip

   中显示代码

   public class Card extends ApplicationAdapter {
       SpriteBatch batch;
       TmxMapLoader tmxMapLoader;
       TiledMap tiledMap;
       OrthogonalTiledMapRenderer mapRenderer;
       OrthographicCamera camera;
       Viewport gamePort;
       Sprite cardSprite;
       Sprite dotSprite;
       Vector3 screenPointTouched;
   
   @Override
   public void create () {
       batch = new SpriteBatch();
       tmxMapLoader=new TmxMapLoader();
       tiledMap= tmxMapLoader.load("level1.tmx");
       mapRenderer=new OrthogonalTiledMapRenderer(tiledMap);
       float worldwidth=19*16;//19tiles*16pixelspertile. This is what its like on the level1.tmx file
       float worldheight=12*16;//12tiles*16pixelspertile. This is what its like on the level1.tmx file
       gamePort= new StretchViewport(worldwidth,worldheight,camera);//new StretchViewport(,
       camera= new OrthographicCamera(10,10*(Gdx.graphics.getWidth()/Gdx.graphics.getHeight()));
       camera.position.set(gamePort.getWorldWidth()/2,gamePort.getWorldHeight()/2,0);//center the camera
       cardSprite=new Sprite(new Texture("badlogic.jpg"));
       dotSprite=new Sprite(new Texture("dot.png"));
       screenPointTouched=new Vector3();
       positionCardSpriteFromFirstRectangle();
   }
   
   @Override
   public void render () {
       update();
       Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);
       mapRenderer.render();
       batch.begin();
       cardSprite.draw(batch);
       dotSprite.draw(batch);
       batch.end();
   }
   
   private void positionCardSpriteFromFirstRectangle() {
       MapObject mo=tiledMap.getLayers().get("cardlayer").getObjects().get(0);//get the firstone onlys
       Rectangle rect=((RectangleMapObject)mo).getRectangle();
       cardSprite.setBounds(rect.x,rect.y,rect.width,rect.height);
   }
   
   public void update() {
       camera.update();
       mapRenderer.setView(camera);
       if(Gdx.input.isTouched()){//handle touch event
           screenPointTouched.set(Gdx.input.getX(),Gdx.input.getY(),0);
           screenPointTouched=camera.unproject(screenPointTouched);
           if(cardSprite.getBoundingRectangle().contains(screenPointTouched.x,screenPointTouched.y)){
               System.out.println("being touched");
               dotSprite.setPosition(screenPointTouched.x,screenPointTouched.y);
           }
       }
   }
   

   }