簡潔

在游戲開發(fā)中會經(jīng)常使用到單例模式，什么時候會用到單例模式呢？有一些數(shù)據(jù)會在整個游戲(程序)生命中一直持續(xù)到游戲結(jié)束的數(shù)據(jù)。例如：玩家數(shù)據(jù)。

代碼

提供兩種單例：

C#中的單例。

Unity3D繼承MonoBehaviour的單例。

using UnityEngine;namespace Singleton {public abstract class Singleton<T> where T : new(){static object _lock = new object();private static T _instance;public static T Instance{get{if (_instance == null){lock (_lock){if (_instance == null){_instance = new T();}}}return _instance;}}public virtual void Release(){_instance = default(T);}}public class SingletonMono<T> : MonoBehaviour where T : Component{private static bool _isApplicationQuit = false;private static T _instance;public bool IsLive{get{if (_instance == null){return false;}return !_isApplicationQuit;}}public static T Instance{get{if (_instance == null && !_isApplicationQuit){_instance = FindObjectOfType(typeof(T)) as T;if (_instance == null){GameObject obj = new GameObject();obj.name = typeof(T).Name.ToString();_instance = (T)obj.AddComponent(typeof(T));}if (Application.isPlaying){GameObject.DontDestroyOnLoad(_instance);}}return _instance;}}protected virtual void OnApplicationQuit(){_isApplicationQuit = true;}protected virtual void OnDestory(){_isApplicationQuit = true;_instance = null;}} }

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