// Use this for initialization
    void Start()
    {
        scoreText.text = "Score: 0";
        timeText.text = "Time: 0";
        stopWatch = new StopWatch ();//Default State is Zero.
        stopWatch.changeState ();//State: Zero to Play.

        //initialize of gotItemNumberList.
        this.gotItemNumberList = new Hashtable ();
        this.gotItemNumberList.Add ("yakisoba", 0);
        this.gotItemListString = "";
        this.gotItemListLabelString = "取得したアイテム\n\n";
        this.gotItemListString = this.gotItemListLabelString;
    }