[Unity 3D] AppleCatch : 씬전환, 싱글턴 패턴

 

 

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https://ko.wikipedia.org/wiki/%EC%8B%B1%EA%B8%80%ED%84%B4_%ED%8C%A8%ED%84%B4

싱글턴 패턴 - 위키백과, 우리 모두의 백과사전

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싱글턴 패턴(Singleton pattern)을 따르는 클래스는, 생성자가 여러 차례 호출되더라도 실제로 생성되는 객체는 하나이고 최초 생성 이후에 호출된 생성자는 최초의 생성자가 생성한 객체를 리턴한다.

 

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class GameManager
{
    private static GameManager instance;
    public bool isGameOver = false;

    private GameManager()
    {
    }

    public static GameManager GetInstance()
    {
        if (GameManager.instance == null)
        {
            GameManager.instance = new GameManager();
        }

        return GameManager.instance;
    }
}

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씬전환시 오브젝트 유지하기

 

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.SceneManagement;

public class App : MonoBehaviour
{
    private void Awake()
    {
        DontDestroyOnLoad(this.gameObject);
    }
    void Start()
    {
        SceneManager.LoadScene("LogoScene");
    }
}

씬전환시 오브젝트 유지하기 DontDestroyOnLoad(this.gameObject);

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유니티 액션을 이용한 이벤트 전달, 싱글턴 객체 리턴

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.Events;

public class GameDirector : MonoBehaviour
{
    public UnityAction onGameover;

    void Update()
    {
        if (GameManager.GetInstance().isGameOver) return;

        this.time -= Time.deltaTime;
        if (this.time <= 0)
        {
            GameManager.GetInstance().isGameOver = true;
            Debug.Log("------------ GAME OVER ------------");
            this.onGameover();
        }
    }
}

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class GameMain : MonoBehaviour
{
    public GameDirector gameDirector;
    public void Init(GameEnums.eItemType selectedItemType)
    {
        this.gameDirector.onGameover = () => {
            this.ShowPopupResult();
        };
    }
    private void ShowPopupResult()
    {
        this.uIPopupResult.Show();
    }
}

 

 

유니티 액션을 이용한 이벤트 전달 using UnityEngine.Events; public class GameDirector : MonoBehaviour {     public UnityAction onGameover;          void Update()     {         this.onGameover();     } } -------------------------------------------------- 이벤트 호출 public class GameMain : MonoBehaviour {     public GameDirector gameDirector;     public void Init()     {         this.gameDirector.onGameover = () => {             this.ShowPopupResult();         };     }     private void ShowPopupResult()     {         this.uIPopupResult.Show();     } }

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씬전환 효과 (페이드 인, 페이드 아웃 wiht DOTween)

 

코루틴 구현과 DOTween 구현

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using DG.Tweening;
using UnityEngine.SceneManagement;

public class LogoMain : MonoBehaviour
{
    public Image dimSprite;
    public AnimationCurve curve;
    public float duration = 1f;
    private float delta = 0;


    //Start는(만) StartCoroutine없이 실행할 수 있음
    IEnumerator Start()
    {
        //Test
        Show();

        yield return new WaitForSeconds(3);

        this.Hide();
    }
    public void Show()
    {
        DOTween.ToAlpha(() => dimSprite.color, x => dimSprite.color = x, 0, 1)
            .SetEase(Ease.InQuad).OnComplete(() =>
            {
                Debug.Log("Show Complete");
            });

        //StartCoroutine(ShowRoutine());
    }

    //https://easings.net/ko
    //https://docs.unity3d.com/ScriptReference/AnimationCurve.Evaluate.html
    //https://m.blog.naver.com/dmknight/220662002178
    private IEnumerator ShowRoutine()
    {
        var color = this.dimSprite.color;
        while (true)
        {
            this.delta += Time.deltaTime;
            float alpha = Mathf.Lerp(1, 0, curve.Evaluate(this.delta / this.duration));
            color.a = alpha;
            this.dimSprite.color = color;
            Debug.Log(alpha);
            if (alpha <= 0)
            {
                break;
            }
            yield return null;
        }
        Debug.Log("Show Complete");
    }
    public void Hide()
    {
        DOTween.ToAlpha(() => dimSprite.color, x => dimSprite.color = x, 1, 1)
            .SetEase(Ease.InQuad).OnComplete(() =>
            {
                Debug.Log("show complete");

                SceneManager.LoadScene("TitleScene");
            });
    }
}

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씬전환시 데이터 전달

 

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using UnityEngine.SceneManagement;

public class LobbyMain : MonoBehaviour
{
    public Button[] btns;   //메뉴 버튼
    public Button btnStart;   //시작 버튼
    private GameEnums.eItemType selectedItemType = GameEnums.eItemType.None;

    void Start()
    {
        for (int i = 0; i < this.btns.Length; i++)
        {
            var btn = this.btns[i];
            var idx = i;
            btn.onClick.AddListener(() => {
                this.selectedItemType = (GameEnums.eItemType)idx;
            });
        }

        this.btnStart.onClick.AddListener(() => {
            Debug.LogFormat("Click: {0}", this.selectedItemType);
            //SceneManager.LoadScene("GameScene");
            AsyncOperation operation = SceneManager.LoadSceneAsync("GameScene");
            operation.completed += (AsyncOperation obj) => {
                var gameMain = GameObject.FindObjectOfType<GameMain>();
                gameMain.Init(this.selectedItemType);
            };
        });
    }
}

 

AsyncOperation operation = SceneManager.LoadSceneAsync("GameScene");             operation.completed += (AsyncOperation obj) => {                 var gameMain = GameObject.FindObjectOfType<GameMain>();                 gameMain.Init(this.selectedItemType);             }; SceneManager.LoadSceneAsync https://docs.unity3d.com/kr/530/ScriptReference/SceneManagement.SceneManager.LoadSceneAsync.html AsyncOperation https://docs.unity3d.com/kr/530/ScriptReference/AsyncOperation.html AsyncOperation .completed https://docs.unity3d.com/ScriptReference/AsyncOperation-completed.html

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1. 싱글톤 클래스를 만들 수 있는가?
2. 비동기 씬로드를 할 수 있는가?
3. 씬전환시 데이터를 전달할 수 있는가?
4. 대리자/이벤트를 사용할 수 있는가?