Generic Based Singleton for MonoBehaviours完全版(？)

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using UnityEngine;   public abstract class MonoSingleton<T> : MonoBehaviour where T : MonoSingleton<T> {     static T m_Instance = null;       public static T instance     {         get         {             if( m_Instance != null )             {                 return m_Instance;             }               System.Type type = typeof(T);               T instance = GameObject.FindObjectOfType(type) as T;               if( instance == null )             {                 string typeName = type.ToString();                   GameObject gameObject = new GameObject( typeName, type );                 instance = gameObject.GetComponent<T>();                   if( instance == null )                 {                     Debug.LogError("Problem during the creation of " + typeName,gameObject );                 }             }             else             {                 Initialize(instance);             }             return m_Instance;         }     }       static void Initialize(T instance)     {         if( m_Instance == null )         {             m_Instance = instance;               m_Instance.OnInitialize();         }         else if( m_Instance != instance )         {             DestroyImmediate( instance.gameObject );         }     }       static void Destroyed(T instance)     {         if( m_Instance == instance )         {             m_Instance.OnFinalize();               m_Instance = null;         }     }       public virtual void OnInitialize() {}     public virtual void OnFinalize() {}       void Awake()     {         Initialize( this as T );     }       void OnDestroy()     {         Destroyed( this as T );     }       void OnApplicationQuit()     {         Destroyed( this as T );     } }

使い方は

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using UnityEngine; using System.Collections;   public class TestSingleton : MonoSingleton<TestSingleton> {     public override void OnInitialize()     {         Debug.Log ( "TestSingleton#OnInitialize" );     }       public override void OnFinalize()     {         Debug.Log ( "TestSingleton#OnFinalize" );     } }

출처 : http://caitsithware.com/wordpress/?p=118