45 lines
1.4 KiB
C#
45 lines
1.4 KiB
C#
|
using UnityEngine;
|
|||
|
|
|
|||
|
|
/// <summary>
|
|||
|
|
/// 这是一个已经封装好的泛型Mono单例,之后可以在其他地方复用它,免去很多麻烦的写法
|
|||
|
|
/// </summary>
|
|||
|
|
public class Singleton<T> : MonoBehaviour where T : MonoBehaviour
|
|||
|
|
{
|
|||
|
|
private static T instance;
|
|||
|
|
public static T Instance
|
|||
|
|
{
|
|||
|
|
get
|
|||
|
|
{
|
|||
|
|
if (instance == null)
|
|||
|
|
{
|
|||
|
|
// 在场景中查找是否已存在该类型的实例
|
|||
|
|
instance = FindObjectOfType<T>();
|
|||
|
|
// 如果场景中不存在该类型的实例，则创建一个新的GameObject并添加该组件
|
|||
|
|
if (instance == null)
|
|||
|
|
{
|
|||
|
|
GameObject singletonObject = new GameObject(typeof(T).Name + "_Singleton");
|
|||
|
|
instance = singletonObject.AddComponent<T>();
|
|||
|
|
DontDestroyOnLoad(singletonObject); // 保留在场景切换时不被销毁
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
return instance;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
//使用virtual虚函数，子类继承可能还需要用Awake()
|
|||
|
|
protected virtual void Awake()
|
|||
|
|
{
|
|||
|
|
// 确保在场景切换时不会销毁该实例
|
|||
|
|
DontDestroyOnLoad(gameObject);
|
|||
|
|
// 检查是否存在重复的实例
|
|||
|
|
if (instance == null)
|
|||
|
|
{
|
|||
|
|
instance = this as T;
|
|||
|
|
}
|
|||
|
|
else
|
|||
|
|
{
|
|||
|
|
Debug.LogWarning("存在重复的单例" + typeof(T).Name + "删除");
|
|||
|
|
Destroy(gameObject);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|