ScreenFader.Fade C# (CSharp) Method

    public static void Fade(Action fadeStart, Action fadeMiddle, Action fadeEnd)
    {
        if (ScreenFaderPrefab != null)
        {
            GameObject screenFaderObject = Instantiate(ScreenFaderPrefab);
            if (screenFaderObject != null)
            {
                ScreenFader screenFader = screenFaderObject.GetComponent<ScreenFader>();
                if (screenFader != null)
                {
                    screenFader.fadeStart = fadeStart;
                    screenFader.fadeMiddle = fadeMiddle;
                    screenFader.fadeEnd = fadeEnd;
                }
            }
        }
    }

    private IEnumerator WaitLoadGame()
    {
        _screenFader.Fade(1);
        yield return(new WaitForSeconds(_wait));

        GameManager.GetInstance().LoadGame();
    }