我们如何在libGDX中删除背面纹理？

Question

private Texture  druidTexture;
private SpriteBatch batch;    
Sprite sprite;
@Override
public void create() {
druidTexture = new Texture(Gdx.files.internal("star-large.gif"));    
sprite = new Sprite(druidTexture);
batch = new SpriteBatch(); 
}
@Override
public void dispose() {

}

@Override
public void pause() {

}

@Override
public void render() {
    batch.begin();
    sprite.rotate(45);
    float x=sprite.getX();
    float y=sprite.getY(); 
    float newx=x+1;
    System.out.println(newx);
    float newy=y+1;
    sprite.setX(newx);
    sprite.draw(batch);
    batch.end();
}

@Override
public void resize(int arg0, int arg1) {

}

@Override
public void resume() {

}

}

我正在获取上述代码的输出

但是我需要移除后面的星星，对于每个星星，我该怎么做？

Answer 1

您需要在每个帧之前清除屏幕，如here所述：

    public void render () {
            Gdx.gl.glClear(GL10.GL_COLOR_BUFFER_BIT); // This cryptic line clears the screen.
            batch.begin();
            // Drawing goes here!
            batch.end();
    }

Answer 2

首先在功能render

中清除屏幕

@Override
public void render() {
    Gdx.gl.glClear(GL10.GL_COLOR_BUFFER_BIT);
         .....
}