我怎么在暂停的libGDX与SpriteAnimation一个按钮，可以查看当前帧时暂停按钮pressed？ [英] how do I pause the SpriteAnimation in libGDX with a button to be able to view the current frame when pause button is pressed?

问题描述

我试图用一个暂停/恢复按钮暂停动画，这样做：

I was trying to pause the animation with a pause/resume button, by doing this :

public static int gameStatus = 1;
public int gamePaused = 0;
public int gameRunning = 0;
public void create(){
  gameRunning = 1;
  //.. code
}
public void render(){
   if(gameStatus == gameRunning){ 

//some code .. 

            pause.setClickListener( new ClickListener() {

                @Override
                public void click(Actor actor, float x, float y) {
                    System.out.println("pause is pressed");
                    //to stop the animation at a particular frame
                    spriteBatch.begin();
                    spriteBatch.draw(currentFrame, 100, 100);                        
                    spriteBatch.end();
                    if(gameStatus!=gamePaused)
                    {
                        gameStatus = gamePaused;
                    }
                    else
                    {
                        gameStatus = 1;
                    }

                }
            });
//rest of my render animation code .. 
   }
}

但是在桌面上，显示了当前帧的3/4和下一帧的1/4。知道为什么吗？而在Android的表现像整个图像是shivering.I'm也许不知道它，因为它再次调用并再次渲染（）。我不明白为什么会出现在Android上的输出中和桌面版本的差异。难道他们不应该是一样的吗？我认为这是两者之间的一些索引问题。任何机构都经历了同样的问题？任何建议或一种合适的方式来暂停动画或教程链接将是非常有益的。三江源。

But on the desktop it shows 3/4th of the current frame and 1/4th of the next frame. Any idea why? And in android it behaves like the entire image is shivering.I'm wondering maybe its because its calling render() again and again. I dont understand why there is a difference in the ouput in android and the desktop version. Aren't they supposed to be the same? I think there is some indexing issue between the two. Any body else experienced the same issue? Any suggestions or a proper way to pause the animation or a tutorial link would be really helpful. Thankyou.

推荐答案

我也没有任何问题，闪烁像我不得不通过简单地从暂停的方法去除spriteBatch.draw（）暂停执行，并通过使用一个布尔变量来知道何时渲染和何时不呈现序暂停动画。
这是我做的（以防人有同样的问题）：

I did the pause implementation without any flickering issues like I had by simply removing the spriteBatch.draw() from the pause method, and by using a boolean variable to know when to render and when not to render inorder to pause the animation. This is how I did it (in case anyone had the same issues):

private boolean isPlaying = true;

    @Override
    public void pause() { 
    Gdx.app.log("pause():", "pausing the app");
        if( isPlaying )
        {
            isPlaying = false;
        }
        else
        {
            isPlaying = true;
        }


    }

    @Override
    public void render() {      

    Gdx.app.log("123123", (!seekBar.isDragging())+"");
    if( isPlaying )
              // .. do the animation.. 
    }

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