Unity 持久单例SingletonMonoBehaviour

public abstract class SingletonMonoBehaviour<T> : MonoBehaviour where T : MonoBehaviour
{
    private static T instance;
    private bool isInit = false;

    public static T Instance
    {
        get => instance ??= new Lazy<GameObject>(new GameObject($"{typeof(T).Name}")).Value.AddComponent<T>();
    }

    protected virtual void Awake()
    {
        if (instance != null) Destroy(gameObject);
        else DontDestroyOnLoad(gameObject);
    }

    internal void Init() 
    {
        if(isInit == false)
        {
            InnerInit();
            isInit = true;
        }
    }

    protected virtual void InnerInit() { }
}