c# – 如何在重新加载场景时让我的Singleton MonoBehaviour类的

我有一个’SingletonManager’类,带有’LevelManager’单例的实例(以及它的接口). ‘LevelManager’GameObject不应该在整个应用程序生命周期中持久存在,并且每次加载新级别时都应该用新实例替换.

在运行我当前的代码时,当第二次加载场景时,尽管游戏对象(附带脚本)在场景中,但“LevelManager”似乎丢失了.我意识到这可能是因为我仍在尝试访问旧的引用.

每次加载新级别时,确保我的’SingletonManager’保存’LevelManager’的新实例的最佳方法是什么？

我的代码(删除了无关紧要)：

SingletonManager：

public class SingletonManager
{
    private static LevelManager instance;
    public static ILevelManager Instance
    {
        get
        {
            if (this.levelManager == null)
            {
                this.levelManager = GameObject.FindObjectOfType(typeof(LevelManager)) as LevelManager;
            }
            return this.levelManager;
        }
    }
}

单身,不是持久的：

public class Singleton<Instance> : MonoBehaviour where Instance : Singleton<Instance> {
    public static Instance instance;
    public bool isPersistant;

    public virtual void Awake() {
        if(isPersistant) {
            if(!instance) {
                instance = this as Instance;
            }
            else {
                DestroyObject(gameObject);
            }
            DontDestroyOnLoad(gameObject);
        }
        else {
            instance = this as Instance;
        }
    }
}

class levelManager {
    private static readonly Dictionary<object,levelManager> _instances = new Dictionary<object,levelManager>();

    private levelManager() {
    }

    public static levelManager GetInstance(object key) { // unique key for your stage
        lock (_instances) {   
            levelManager instance;
            if (!_instances.TryGetValue(key,out instance)) {
                instance = new levelManager();
                _instances.Add(key,instance);
            }
            return instance;
        }
    }
}