using UnityEngine;

public abstract class SingletonMonoBehavior<T> : MonoBehaviour where T : SingletonMonoBehavior<T>
{
    private static T _instance;

    public static T Instance
    {
        get
        {
            if (_instance == null)
            {
                _instance = FindFirstObjectByType<T>();
                if (_instance == null)
                {
                    var go = new GameObject(typeof(T).Name);
                    _instance = go.AddComponent<T>();
                }
            }
            return _instance;
        }
    }

    protected virtual void Awake()
    {
        if (_instance != null && _instance != this)
        {
            Destroy(gameObject);
            return;
        }

        _instance = (T)this;
        DontDestroyOnLoad(gameObject);
    }
}