GunfightShoot/assets/scripts/core/manager/Singleton.ts

/**
 * 单例基类
 */
export class Singleton {
   constructor() {}

   /**获取单例实例
    * @returns 单例实例
    */
   public static ins<T extends {}>(this: new () => T): T {
      if (!(<any>this)._ins) {
         ;(<any>this)._ins = new this()
      }
      return (<any>this)._ins
   }

   /**
    * 销毁单例实例
    */
   public static destroy<T extends {}>(this: new () => T): void {
      ;(<any>this)._ins = null
   }
}