63 lines
1.8 KiB
C#
63 lines
1.8 KiB
C#
using UnityEngine;
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namespace A2W
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{
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public class Singleton<T> : MonoBehaviour where T : MonoBehaviour
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{
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private static T _instance;
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private static object _lock = new object();
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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 (applicationIsQuitting)
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{
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return null;
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}
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if (_instance == null)
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{
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lock (_lock)
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{
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if (_instance == null)
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{
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var objs = FindObjectsByType<T>(FindObjectsSortMode.None);
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if (objs.Length > 0)
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{
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_instance = objs[0];
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if (objs.Length > 1)
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{
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for (var i = 1; i < objs.Length; i++)
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{
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Destroy(objs[i].gameObject);
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}
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}
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}
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if (_instance == null)
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{
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var singleton = new GameObject();
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_instance = singleton.AddComponent<T>();
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singleton.name = "(singleton)" + typeof(T).ToString();
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DontDestroyOnLoad(singleton);
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}
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}
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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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private static bool applicationIsQuitting = false;
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public void OnDestroy()
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{
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applicationIsQuitting = true;
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}
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}
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}
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