55 lines
1.5 KiB
C#
55 lines
1.5 KiB
C#
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using UnityEngine;
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namespace Roy
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{
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public class SingletonMonoBehaviour<T> : MonoBehaviour where T : MonoBehaviour
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{
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private static T _instance;
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public static T Instance
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{
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get
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{
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if (_instance == null)
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{
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// 尝试找到已存在的实例
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_instance = FindObjectOfType<T>();
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// 如果没有找到，则创建一个新的实例
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if (_instance == null)
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{
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GameObject singletonObject = new GameObject(typeof(T).Name);
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_instance = singletonObject.AddComponent<T>();
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DontDestroyOnLoad(singletonObject); // 不在场景切换时销毁
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}
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}
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return _instance;
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}
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}
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// 确保在场景中只存在一个实例
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protected virtual void Awake()
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{
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if (_instance == null)
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{
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_instance = this as T;
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}
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else if (_instance != this)
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{
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Debug.LogWarning($"An instance of {typeof(T)} already exists! Destroying this instance.");
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Destroy(gameObject); // 如果有其他实例，销毁当前对象
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}
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}
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protected virtual void OnDestroy()
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{
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if (_instance == this)
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{
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_instance = null; // 清除引用
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}
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}
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}
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}
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