[游戏开发]Unity常用的设计模式

????????总结学习的一些Unity常用的设计模式，还在不断学习补充中...

1. 单例模式

   ---

   using UnityEngine;
   
   public class Singleton : MonoBehaviour
   {
       protected static Singleton s_Instance;
       public static Singleton Instance => s_Instance;
   
       private void Awake()
       {
           if (!ReferenceEquals(s_Instance, null))
           {
               Destroy(gameObject);
           }
           else
           {
               s_Instance = this;
           }
       }
   
       private void OnDestroy()
       {
           if (s_Instance == this)
           {
               s_Instance = null;
           }
       }
   }

2. ---

   泛型单例模式

   ---

   using UnityEngine;
   
   public class Singleton<T> : MonoBehaviour where T : Singleton<T>
   {
       protected static T s_Instance;
   
       public static T Instance => s_Instance;
   
       protected virtual void Awake()
       {
           if (!ReferenceEquals(s_Instance, null))
           {
               Destroy(gameObject);
           }
           else
           {
               s_Instance = (T) this;
           }
       }
   
       protected virtual void OnDestroy()
       {
           if (s_Instance == this)
           {
               s_Instance = null;
           }
       }
   }

3. ---

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