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

namespace BF
{
    public class ShowFPS : MonoBehaviour {

        public float f_UpdateInterval = 0.5f;

        private float f_LastInterval;

        private int i_Frames = 0;

        private float f_Fps;

        void Start()
        {
            f_LastInterval = Time.realtimeSinceStartup;

            i_Frames = 0;
        }

        void OnGUI()
        {
            GUIStyle bb = new GUIStyle();
            bb.normal.textColor = new Color(255, 0, 0);
            bb.fontSize = 40;
            GUI.Label(new Rect(0, 0, 200, 200), "FPS:" + f_Fps.ToString("f2"), bb);
        }

        void Update()
        {
            ++i_Frames;

            if (Time.realtimeSinceStartup > f_LastInterval + f_UpdateInterval)
            {
                f_Fps = i_Frames / (Time.realtimeSinceStartup - f_LastInterval);

                i_Frames = 0;

                f_LastInterval = Time.realtimeSinceStartup;
            }
        }
    }
}