using UnityEngine;  
using System.Collections;  
using DG.Tweening;  
  
public class FPSTester : MonoBehaviour   
{  
    private float m_LastUpdateShowTime=0f;  //上一次更新帧率的时间;  
  
    private float m_UpdateShowDeltaTime=1f;//更新帧率的时间间隔;  
  
    private int m_FrameUpdate=0;//帧数;  
  
    private float m_FPS=0;  
  
    void Awake()  
    {  
        //Application.targetFrameRate=-1;  
    }  
  
    // Use this for initialization  
    void Start ()   
    {  
        m_LastUpdateShowTime=Time.realtimeSinceStartup;  
    }  
      
    // Update is called once per frame  
    void Update ()   
    {  
        m_FrameUpdate++;  
        if(Time.realtimeSinceStartup-m_LastUpdateShowTime>=m_UpdateShowDeltaTime)  
        {  
            m_FPS=m_FrameUpdate/(Time.realtimeSinceStartup-m_LastUpdateShowTime);  
            m_FrameUpdate=0;  
            m_LastUpdateShowTime=Time.realtimeSinceStartup;  
        }  
    }  
  
    void OnGUI()  
    {  
        GUIStyle labelFont = new GUIStyle();
        labelFont.normal.textColor = new Color(1, 0.6f, 0.6f); 
        labelFont.fontSize = Mathf.CeilToInt(Screen.height * 0.05f); 
        GUI.Label(new Rect(Screen.width/100,Screen.height/100,100,100),"FPS: "+m_FPS, labelFont);  
    }  
}