Unity中的单例模式基类
发表于2018-05-08
在unity中有两种单例类型，一种是普通单例，即普通c#类，另一种是继承了MonoBehaviour的单例。
普通单例：
public abstract class CSharpSingletion<T> where T : new() ｛
private static T instance;
public static T Instance
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get
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if (instance == null)
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instance = new T();
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return instance;
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继承了MonoBehaviour的单例：
using UnityEngine;
using System.Collections;
public abstract class MonoSingletion<T> : MonoBehaviour where T : MonoBehaviour ｛
private static string rootName = "MonoSingletionRoot";
private static GameObject monoSingletionRoot;
private static T instance;
public static T Instance
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get
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if (monoSingletionRoot == null)
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monoSingletionRoot = GameObject.Find(rootName);
if (monoSingletionRoot == null) Debug.Log("please create a gameobject named " + rootName);
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if (instance == null)
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instance = monoSingletionRoot.GetComponent<T>();
if (instance == null) instance = monoSingletionRoot.AddComponent<T>();
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return instance;
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第二种需要在场景中创建一个名为MonoSingletionRoot的空物体，才能使用。