【Unity】簡易フェード制御コンポーネントについて考えてみる　SceneController

SceneController.cs

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

public class SceneController : MonoBehaviour
{
    private FadeController m_fade   = null;

    public static SceneController Instance
    {
        get;
        private set;
    }

    void Awake()
    {
        if( Instance != null )
        {
            Destroy( this );
            return;
        }

        DontDestroyOnLoad( gameObject );

        var obj = new GameObject();
        m_fade  = obj.AddComponent<FadeController>();
    }

    void OnDestroy()
    {
        if( Instance == this )
        {
            Instance = null;
        }
    }

    public void ChangeScene( string i_scene )
    {
        StartCoroutine( ChangeSceneProcess( i_scene ) );
    }

    private IEnumerator ChangeSceneProcess( string i_scene )
    {
        m_fade.FadeOut( 2.0f, Color.red );

        yield return new WaitWhile( () => m_fade.State == FadeController.EFadeState.Process );

        SceneManager.LoadScene( i_scene );

        m_fade.FadeIn();

        yield return new WaitWhile( () => m_fade.State == FadeController.EFadeState.Process );
    }

} // class SceneController