/****************************************************
    文件：FPS.cs
    作者：陶长春
    邮箱：376248129@qq.com
    日期：2025年3月12日 6:03:14
    UnityVersion: 2021.3.13f1
    功能：FPS工具类
*****************************************************/
using TFramework;
using System.Collections.Generic;
using UnityEngine;

public class FPS 
{
    private float _lastTime = 0f;
    private int _fpsCount = 0;
    public TAction<float> onUpdateFPS;

    /// <summary>
    /// 当前帧率
    /// </summary>
    public float CurrentFPS { get; private set; }

    public FPS()
    {
        Main.Instance.onUpdate += Update;
    }

    private void Update()
    {
        float time = Time.realtimeSinceStartup - _lastTime;
        _fpsCount += 1;
        if (time > 1)
        {
            CurrentFPS = _fpsCount / time;
            _fpsCount = 0;
            _lastTime = Time.realtimeSinceStartup;
            onUpdateFPS?.Invoke(CurrentFPS);
        }
    }
}