using System.Collections;
using System.Collections.Generic;
using UnityEngine;
namespace Polyart
{
    public class FPS_Counter : MonoBehaviour
    {
        /* Assign this script to any object in the Scene to display frames per second */

        public float updateInterval = 0.5f; //How often should the number update

        float accum = 0.0f;
        int frames = 0;
        float timeleft;
        float fps;

        GUIStyle textStyle = new GUIStyle();

        // Use this for initialization
        void Start()
        {
            timeleft = updateInterval;

            textStyle.fontStyle = FontStyle.Bold;
            textStyle.normal.textColor = Color.white;
        }

        // Update is called once per frame
        void Update()
        {
            timeleft -= Time.deltaTime;
            accum += Time.timeScale / Time.deltaTime;
            ++frames;

            // Interval ended - update GUI text and start new interval
            if (timeleft <= 0.0)
            {
                // display two fractional digits (f2 format)
                fps = (accum / frames);
                timeleft = updateInterval;
                accum = 0.0f;
                frames = 0;
            }
        }

        void OnGUI()
        {
            //Display the fps and round to 2 decimals
            GUI.Label(new Rect(50, 50, 1000, 250), fps.ToString("F2") + "FPS", textStyle);
        }
    }
}