IEnumerator StartStage2()
    {
        stageState = STAGESTATE.INSTAGE;
        yield return(new WaitForSeconds(1f));

        stage2.SetActive(true);
        yield break;
    }
    private void Start()
    {
        bgmDirector = FindObjectOfType <BGMDirector>();

        stageState = STAGESTATE.INSTAGE;
    }