void Awake()
{
instance = this;
progress_tracker_instance = ProgressTracker.instance;
race_manager = GameObject.Find("RaceManager");
fadeInLeft = GameObject.Find("Main Camera Left").GetComponent<ScreenFadeIn>();
fadeInRight = GameObject.Find("Main Camera Right").GetComponent<ScreenFadeIn>();
fadeOutLeft = GameObject.Find("Main Camera Left").GetComponent<ScreenFadeOut>();
fadeOutRight = GameObject.Find("Main Camera Right").GetComponent<ScreenFadeOut>();
}
