5-5. 7조 SceneChanger(Fade in, Fade out), Obstacle - Arrow

1. SceneChanger(Fade in, Fade out)

씬이 전환될 때 효과를 주어 부드럽게 넘어가도록 효과 추가

• SceneChanger 오브젝트의 자식으로 FadePanel 추가
• SceneChanger 오브젝트의 SceneChanger 컴포넌트 fadeImage에 FadePanel 추가

      //public SceneAsset scene;
      public Image fadeImage;
      public float fadeDuration = 1.5f;
  
      private static SceneChanger instance;
  
      private void Awake()
      {
          if (instance == null)
          {
              instance = this;
              DontDestroyOnLoad(gameObject);
          }
          else
          {
              Destroy(gameObject);
          }
      }
  
      public void StartButton()
      {
          //if (scene != null)
          //{
          //SceneManager.LoadScene("stage1");
          LoadSceneWithFade("stage1");
          //}
      }
  
      public void LoadGame()
      {
          string savedStage = PlayerPrefs.GetString("SavedStage", "Stage1");
          //SceneManager.LoadScene(savedStage);
          LoadSceneWithFade(savedStage);
      }
  
      public void GoToTitle()
      {
          SaveGame();
          //SceneManager.LoadScene("TitleScene");
          LoadSceneWithFade("TitleScene");
      }
  
      private void SaveGame()
      {
          string currentScene = SceneManager.GetActiveScene().name;
          PlayerPrefs.SetString("SavedStage", currentScene);
          PlayerPrefs.Save();
      }
  
      public void NextStage()
      {
          string currentScene = SceneManager.GetActiveScene().name;
          string nextScene = "";
  
          if (currentScene == "Stage1") nextScene = "Stage2";
          else if (currentScene == "Stage2") nextScene = "Stage3";
          else if (currentScene == "Stage3") nextScene = "TitleScene";
  
          //SceneManager.LoadScene(nextScene);
          LoadSceneWithFade(nextScene);
      }
  
      public void LoadSceneWithFade(string scene)
      {
          StartCoroutine(FadeOutAndLoadScene(scene));
      }
  
      private IEnumerator FadeOutAndLoadScene(string sceneName)
      {
          float elapsedTime = 0f;
          Color color = fadeImage.color;
  
          // 페이드 아웃 효과
          while (elapsedTime < fadeDuration)
          {
              elapsedTime += Time.deltaTime;
              color.a = Mathf.Lerp(0, 1, elapsedTime / fadeDuration);
              fadeImage.color = color;
              yield return null;
          }
  
          SceneManager.LoadScene(sceneName);
  
          // 페이드 인 효과 (Optional)
          elapsedTime = 0f;
          while (elapsedTime < fadeDuration)
          {
              elapsedTime += Time.deltaTime;
              color.a = Mathf.Lerp(1, 0, elapsedTime / fadeDuration);
              fadeImage.color = color;
              yield return null;
          }
      }
  
      public void Exit()
      {
  #if UNITY_EDITOR
          UnityEditor.EditorApplication.isPlaying = false;
  #else
              Application.Quit();
  #endif
      }

2. Obstacle - Arrow

• 플레이어가 일정거리 안에 감지가 되면 화살이 일정거리를 arrowSpeed의 속도로 이동
• 플레이어에게 닿았을 경우: 플레이어에게 데미지를 주고 오브젝트 파괴
• 플레이어에게 닿지 않았을 경우: 일정거리를 이동한 후 오브젝트 파괴

  public float playerRange = 5f;
  public float arrowSpeed = 5f;
  public float maxDistance = 15f;
  public float damage = 20f;
  
  private GameObject player;
  private bool isFlying = false;
  private Vector3 startPosition;
  
  void Start()
  {
      player = GameObject.FindGameObjectWithTag("Player");
      startPosition = transform.position;
  }
  
  void Update()
  {
      DetectAndShoot();
      HandleArrowMovement();
  }
  
  private void DetectAndShoot()
  {
      if (!isFlying && player != null)
      {
          float distanceToPlayer = Mathf.Abs(player.transform.position.x - transform.position.x);
          if (distanceToPlayer <= playerRange)
          {
              isFlying = true;
          }
      }
  }
  
  private void HandleArrowMovement()
  {
      if (isFlying)
      {
          transform.Translate(Vector3.right * arrowSpeed * Time.deltaTime);
  
          if (Vector3.Distance(startPosition, transform.position) >= maxDistance)
          {
              Destroy(gameObject);
          }
      }
  }
  
  private void OnTriggerEnter2D(Collider2D collision)
  {
      // 플레이어와 충돌 처리
      if (collision.CompareTag("Player"))
      {
          // 플레이어에게 데미지를 준다
          PlayerInfo playerInfo = player.GetComponent<PlayerInfo>();
          if (playerInfo != null)
          {
              playerInfo.health -= damage;
          }
  
          // 화살 파괴
          Destroy(gameObject);
      }
  }