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Singleton

Unity3D/Script / 2014.03.05 10:41

일반형 Singleton

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class MySingleton
{
    private static MySingleton instance;
 
    //
    private MySingleton()
    {
 
    }
 
    static MySingleton()
    {
        instance = new MySingleton();
    }
 
    public static MySingleton Instance
    {
        get
        {
            return instance;
        }
    }
};

Component용 Singleton

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using UnityEngine;
using System.Collections;
 
public class MySingleton : MonoBehaviour {
 
    private static MySingleton instance;
     
    //
    private MySingleton()
    {
    }
     
    //
    public static MySingleton Instance
    {
        get
        {
            if (instance == null)
            {
                instance =  FindObjectOfType(typeof (MySingleton)) as MySingleton;
             
                if (instance == null)
                {
                    GameObject obj = new GameObject("MySingleton");
                    instance = obj.AddComponent(typeof (MySingleton)) as MySingleton;
                    Debug.Log ("Could not locate an MySingleton object. MySingleton was Generated Automaticly.");
                }
            }
  
            return instance;
        }
    }
     
    void Awake()
    {
        DontDestroyOnLoad(this);
    }
     
    void OnApplicationQuit()
    {
        instance = null;
    }
}

제네릭 버전

일반형 Singleton

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public class  Singleton<T> where T : class, new()
{
    private static T instance;
         
    static Singleton()
    {
        instance = new T();
    }
     
    public static T Instance
    {
        get
        {
            return instance;
        }
    }
};

Component용 Singleton

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using UnityEngine;
using System.Collections;
  
public abstract class MonoSingleton<T> : MonoBehaviour where T : MonoSingleton<T>
{
    private static T instance;
     
    //
    public static T Instance
    {
        get
        {
            if (instance == null)
            {
                instance =  FindObjectOfType(typeof(T)) as T;
             
                if (instance == null)
                {
                    GameObject obj = new GameObject(typeof (T).ToString());
                    instance = obj.AddComponent(typeof (T)) as T;
                    instance.Init();
         
                    Debug.Log ("Could not locate an " + typeof (T).ToString() +" object. " + typeof (T).ToString() + " was Generated Automaticly.");
                }
            }
         
            return instance;
        }
    }
      
    void Awake()
    {
        if (instance == null)
        {
            instance = this as T;
            instance.Init();
        }
         
        DontDestroyOnLoad(this);
    }
      
    void OnApplicationQuit()
    {
        instance = null;
    }
     
    public virtual void Init()
    {
         
    }
}



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