4-6) Updating and Saving The High Score

1. BestScoreTex추가

2. Playerprefs로 저장 및 불러오기

• GameManager

    [SerializeField] private TextMeshProUGUI bestScore_Tex;
    private int bestScore;
    
    private void Start()
    {
        bestScore = PlayerPrefs.GetInt("bestScore");
        bestScore_Tex.text = "Best Score : " + bestScore;
    }

    public void GameOver()
    {
        SaveBestScore();
    }

    private void SaveBestScore()
    {
        if (PlayerPrefs.HasKey("bestScore"))
        {
            // Already have bestscore
            if (score > PlayerPrefs.GetInt("bestScore"))
            {
                PlayerPrefs.SetInt("bestScore", score);
            }
        }
        else
        {
            // Playing for the first time
            PlayerPrefs.SetInt("bestScore", score);
        }
    }

3. GameOver시 점수 업데이트 안되도록

• GameManager

```cs
    public void GameOver()
    {
                StopCoroutine("UpdateScore");
    }