Singleton.cs
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
// 实现普通的单例模式
// where 限制模板的类型, new()指的是这个类型必须要能被实例化
public abstract class Singleton<T> where T : new() {
private static T _instance;
private static object mutex = new object();
public static T Instance {
get {
if (_instance == null) {
lock (mutex) { // 保证我们的单例,是线程安全的;
if (_instance == null) {
_instance = new T();
}
}
}
return _instance;
}
}
}
// Monobeavior: 声音, 网络
// Unity单例
public class UnitySingleton<T> : MonoBehaviour
where T : Component {
private static T _instance = null;
public static T Instance {
get {
if (_instance == null) {
_instance = FindObjectOfType(typeof(T)) as T;
if (_instance == null) {
GameObject obj = new GameObject();
_instance = (T)obj.AddComponent(typeof(T));
obj.hideFlags = HideFlags.DontSave;
// obj.hideFlags = HideFlags.HideAndDontSave;
obj.name = typeof(T).Name;
}
}
return _instance;
}
}
public virtual void Awake() {
DontDestroyOnLoad(this.gameObject);
if (_instance == null) {
_instance = this as T;
}
else {
GameObject.Destroy(this.gameObject);
}
}
}