/// <summary>
    /// コース難易度をゲーム難易度から決定
    /// </summary>
    /// <param name="gameDifficulty"></param>
    /// <returns></returns>
    public RoadType StageSelect(GameManager.GameDifficulty gameDifficulty)
    {
        switch (gameDifficulty)
        {
        case GameManager.GameDifficulty.Easy:
            return(EasyType);

        case GameManager.GameDifficulty.Normal:
            return(NormalType);

        case GameManager.GameDifficulty.Hard:
            return(HardType);
        }

        return(EasyType);
    }
 void SetGameDiff(Button _button, GameManager.GameDifficulty _gameDiff)
 {
     _button.onClick.AddListener(() => GameManager.Instance.SetGameDifficulty(_gameDiff));
     _button.onClick.AddListener(() => SceneController.Instance.ChangeScene(SceneController.Scenes.Main));
 }