using UnityEngine;
using System.Collections;

namespace Engine.Component
{
	/// <summary>统计帧频</summary>
	public class FPSComponent : BaseComponent 
	{

		/// <summary>当前帧数</summary>
		private int nFrameCt = 60;
		/// <summary>统计时间</summary>
		private int nStartTime = 0;
		/// <summary>统计中的值</summary>
		private int nFrameIng = 0;

		/// <summary>渲染帧函数</summary>
		void Update()
		{
			if (CStaticMethod.SystemAfterTime () - nStartTime >= 1000) 
			{
				nFrameCt = nFrameIng;
				nStartTime = CStaticMethod.SystemAfterTime ();
				nFrameIng = 0;
			}
			else
			{
				nFrameIng++;
			}
		}

        void OnGUI()
        {
            GUIStyle testStyle = new GUIStyle();
            testStyle.normal.background = null;

            if (nFrameCt >= 40)
            {
                testStyle.normal.textColor = Color.white;
            }
            else if (nFrameCt >= 30)
            {
                testStyle.normal.textColor = Color.green;
            }
            else {
                testStyle.normal.textColor = Color.red;
            }

            testStyle.fontSize = 30;

            GUI.Label(new Rect(10, 10, 200, 60), "frame:" + nFrameCt, testStyle);
        
        }

	}
}