Unity中的单例模板

MonoSingleton.cs

using UnityEngine;

namespace Utils
{
    public class MonoSingleton<T> : MonoBehaviour where T : MonoSingleton<T>
    {
        public static T Inst
        {
            get
            {
                CreateInst();
                return _inst;
            }
        }

        public static void CreateInst(string prefabPath = "")
        {
            if (null != _inst)
            {
                return;
            }

            if (string.IsNullOrEmpty(prefabPath))
            {
                var obj = new GameObject($"Singleton_{typeof(T).FullName}");
                DontDestroyOnLoad(obj);
                _inst = obj.AddComponent<T>();
            }
            else
            {
                var obj = Instantiate(Resources.Load<GameObject>(prefabPath));
                obj.name = $"Singleton_{typeof(T).FullName}";
                DontDestroyOnLoad(obj);
                _inst = obj.GetComponent<T>();
            }
        }

        public static void DestroyInst()
        {
            Destroy(_inst.gameObject);
        }

        private static T _inst;
    }
}