FPS Display Script

        float timeA;
public int fps;
public int lastFPS;
public GUIStyle textStyle;
// Use this for initialization
void Start () {
timeA = Time.timeSinceLevelLoad;
DontDestroyOnLoad (this);
}

// Update is called once per frame
void Update () {
//Debug.Log(Time.timeSinceLevelLoad+" "+timeA);
if(Time.timeSinceLevelLoad  - timeA <= 1)
{
fps++;
}
else
{
lastFPS = fps + 1;
timeA = Time.timeSinceLevelLoad;
fps = 0;
}
}
void OnGUI()
{
GUI.Label(new Rect( 450,5, 30,30),""+lastFPS,textStyle);
}