export default class ObjectPool { private static clsArr = []; static pop(cls: any) { let idx = this.clsArr.indexOf(cls); if (idx < 0) { idx = this.clsArr.length; this.clsArr.push(cls); } let key = 'poolKey' + idx; let item = Laya.Pool.getItemByClass(key, cls); item.poolKey = key; return item; } static push(item) { Laya.Pool.recover(item.poolKey, item); } }