使用 Thread.sleep() 限制 Libgdx 游戏中的 FPS 不起作用

2022-01-12 00:00:00 limit android java libgdx frame-rate

我正在使用 libgdx 为 android 开发一个小游戏，并希望将 fps 限制为 30 以节省电池.问题是它不起作用.fps 刚刚从 60 下降到 56.

I am developing a little game for android with libgdx and want to limit the fps to 30 to save battery. The problem is that it doesn't work. The fps just drops from 60 to 56.

这是代码的一部分:(它在渲染部分的末尾)

Here is the part of the code: (it's at the end of the render part)

System.out.print("
FPS: " + Gdx.graphics.getFramesPerSecond() + "
");

    if(Gdx.graphics.getDeltaTime() < 1f/30f)
    {
        System.out.print("DeltaTime: " + Gdx.graphics.getDeltaTime() + " s
");
        float sleep = (1f/30f-Gdx.graphics.getDeltaTime())*1000;
        System.out.print("sleep: " + sleep + " ms
");
        try
        {
            Thread.sleep((long) sleep);
        }
        catch (InterruptedException e)
        {
            System.out.print("Error...");
            e.printStackTrace();
        }
    }

这是输出:

FPS: 56
DeltaTime: 0.014401722 s
sleep: 18.931612 ms

FPS: 56
DeltaTime: 0.023999143 s
sleep: 9.334191 ms

FPS: 56
DeltaTime: 0.010117603 s
sleep: 23.215733 ms

提前谢谢...

推荐答案

Use may use this

Use might use this

Thread.sleep((long)(1000/30-Gdx.graphics.getDeltaTime()));

将 30 的值更改为所需的 FPS.

change the value of 30 to FPS you want.

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