FPS计算New

using UnityEngine;

using System.Collections;

public class CarGUI : MonoBehaviour

{

    private const float FPS_UPDATE_INTERVAL = 0.5f;

    private float fpsAccum = ;

    private int fpsFrames = ;

    private float fpsTimeLeft = FPS_UPDATE_INTERVAL;

    private float fps = ;

    void Update()

    {

        fpsTimeLeft -= Time.deltaTime;

        fpsAccum += Time.timeScale / Time.deltaTime;

        fpsFrames++;

        if (fpsTimeLeft <= )

        {

            fps = fpsAccum / fpsFrames;

            fpsTimeLeft = FPS_UPDATE_INTERVAL;

            fpsAccum = ;

            fpsFrames = ;

        }

    }

    void OnGUI()

    {

        GUILayout.BeginArea(new Rect(, , , ));

        GUILayout.Label("Arrows: movement\nCtrl: flip car");

        GUILayout.Label("FPS: " + fps.ToString("f1"));

        GUILayout.EndArea();

    }

}