示例#1
0
 private void redrawNowOrLater(Image image) {
   if (image == null || image.isReady()) {
     redraw();
   } else {
     image.addCallback(this);
   }
 }
  @Override
  public void init() {
    // create and add background image layer
    Image backgroundImage = assetManager().getImage("images/background.png");

    backgroundImage.addCallback(
        new ResourceCallback<Image>() {
          @Override
          public void done(Image image) {
            graphics().setSize(image.width(), image.height());
          }

          @Override
          public void error(Throwable err) {
            log().error("Error loading image!", err);
          }
        });

    ImageLayer backgroundLayer = graphics().createImageLayer(backgroundImage);
    graphics().rootLayer().add(backgroundLayer);

    // create a group layer to hold the peas
    peaLayer = graphics().createGroupLayer();
    graphics().rootLayer().add(peaLayer);

    // preload the pea image into the asset manager cache
    assetManager().getImage(Pea.IMAGE);

    // add a listener for pointer (mouse, touch) input
    pointer()
        .setListener(
            new AbstractPointerListener() {
              @Override
              public void onPointerEnd(float x, float y) {
                Pea pea = new Pea(peaLayer, x, y);
                peas.add(pea);
              }
            });
  }