void Start()
    {
        appleData = SaveData.GetClass <AppleData>(SaveDataKeys.appleData + index.ToString(), new AppleData());
        SaveData.SetClass <AppleData>(SaveDataKeys.appleData + index.ToString(), appleData);
        SaveData.Save();

        updateDataManager = GameObject.Find("UpdateDataManager");
    }
    private void Harvest()
    {
        //ポイント更新
        int point = SaveData.GetInt(SaveDataKeys.possessedPoint);

        point += appleData.point;
        SaveData.SetInt(SaveDataKeys.possessedPoint, point);
        updateDataManager.GetComponent <UpdateDataManager>().UpdatePossessedPoint(point);


        //新しいりんごの生成
        appleData = new AppleData();
        SaveData.SetClass <AppleData>(SaveDataKeys.appleData + index.ToString(), appleData);
        SaveData.Save();

        canHarvest = false;
    }