public void StopGame()
    {
        MovePlayerToSteadyPos();
        Destroy(keyboard);
        isPlaying = false;
        listEnemy.Clear();

        MH.OpenResultMenu(true);
        int score = player.GetComponent <PlayerController> ().score;

        if (PlayerPrefs.GetInt("HighScore") < score)
        {
            PlayerPrefs.SetInt("HighScore", score);
        }
        MH.ResultMenu.transform.GetChild(1).GetChild(0).GetComponent <UnityEngine.UI.Text> ().text = " Your Score : " + score.ToString();
        MH.ResultMenu.transform.GetChild(2).GetChild(0).GetComponent <UnityEngine.UI.Text> ().text = " High Score : " + PlayerPrefs.GetInt("HighScore").ToString();
        GetComponent <GameWaveManager> ().Waves = 0;
    }