限制FPS在Libgdx游戏视频下载（）不工作 [英] Limit FPS in Libgdx game with Thread.sleep() doesn't work

问题描述

我正在开发一个小游戏为Android与libgdx并希望将FPS限制为30，以节省电池。的问题是，它无法工作。在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.

这里是code部分：（这是在渲染部分的结尾）

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

System.out.print("\nFPS: " + Gdx.graphics.getFramesPerSecond() + "\n");

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

和这里是输出：

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

在此先感谢...

推荐答案

使用可能会利用此

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

修改30值FPS你想要的。

change the value of 30 to FPS you want.

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