using UnityEngine;
using System.Collections;
using UnityEngine.UI;

public class FPS : MonoBehaviour
{
    [SerializeField]
    Text m_Text;

    public float updateInterval = 0.5F;
    private float lastInterval;
    private int frames = 0;
    private float fps;

    void Start()
    {
        lastInterval = Time.realtimeSinceStartup;
        frames = 0;
    }

    void LateUpdate()
    {
        ++frames;
        float timeNow = Time.realtimeSinceStartup;

        if (timeNow > lastInterval + updateInterval)
        {
            fps = frames / (timeNow - lastInterval);
            frames = 0;
            lastInterval = timeNow;

            if (m_Text != null)
            {
                m_Text.text = fps.ToString("F1");
            }
        }

    }
}