UNITY计算fps时应忽略掉time.timescale的影响

using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;

public class AnalysisTool : MonoBehaviour
{
public Text fpsText; // 用于显示FPS的UI Text组件
public Text fps2Text; // 用于显示FPS的UI Text组件
public float updateInterval = 1f; // 更新FPS显示的间隔时间（秒）

private float accum = 0; // 累计时间
private int frames = 0; // 累计帧数
private float timeLeft; // 下一次更新FPS显示的时间
private float averageFPS = 0; // 平均FPS
private float minFPS = float.MaxValue; // 最低FPS
private float maxFPS = 0; // 最高FPS
private float deltaTime = 0.0f;

private void Awake()
{
    DontDestroyOnLoad(gameObject);
}

void Start()
{
    timeLeft = updateInterval;
}

void Update()
{
    // 计算当前帧的FPS       
    deltaTime += (Time.unscaledDeltaTime - deltaTime) * 0.1f;
    float currentFPS = 1.0f / deltaTime;     

    // 累计时间和帧数
    timeLeft -= Time.deltaTime;
    accum += currentFPS;
    frames++;

    // 如果达到更新间隔时间，计算平均FPS并更新UI
    if (timeLeft <= 0.0f)
    {
        // 计算平均FPS
        averageFPS = accum / frames;

        // 更新最低/最高FPS
        if (averageFPS < minFPS) 
            minFPS = averageFPS;

        if (averageFPS > maxFPS) 
            maxFPS = averageFPS;

        // 更新UI Text显示FPS信息
        fpsText.text = string.Format(
            "FPS: {0:0.}\nMin: {1:0.}\nMax: {2:0.}",
            averageFPS, minFPS, maxFPS
        );

        // 重置累计值和时间
        timeLeft = updateInterval;
        accum = 0;
        frames = 0;
    }
}

}