yichael_diglett/assets/script/rankItems.js

// Learn cc.Class:
//  - [Chinese] http://docs.cocos.com/creator/manual/zh/scripting/class.html
//  - [English] http://www.cocos2d-x.org/docs/creator/en/scripting/class.html
// Learn Attribute:
//  - [Chinese] http://docs.cocos.com/creator/manual/zh/scripting/reference/attributes.html
//  - [English] http://www.cocos2d-x.org/docs/creator/en/scripting/reference/attributes.html
// Learn life-cycle callbacks:
//  - [Chinese] http://docs.cocos.com/creator/manual/zh/scripting/life-cycle-callbacks.html
//  - [English] http://www.cocos2d-x.org/docs/creator/en/scripting/life-cycle-callbacks.html
window.rankItems = {

}
cc.Class({
    extends: cc.Component,

    properties: {
        // foo: {
        //     // ATTRIBUTES:
        //     default: null,        // The default value will be used only when the component attaching
        //                           // to a node for the first time
        //     type: cc.SpriteFrame, // optional, default is typeof default
        //     serializable: true,   // optional, default is true
        // },
        // bar: {
        //     get () {
        //         return this._bar;
        //     },
        //     set (value) {
        //         this._bar = value;
        //     }
        // },
        item: cc.Prefab,
    },

    // LIFE-CYCLE CALLBACKS:

    onLoad () {
        this.pool = new cc.NodePool();
        rankItems = this;
        Log.info("走 ",this.pool,rankItems)
    },

    start () {


    },
    getItem(){
        let item = null;
        //c1、当前对象池中的可用对象数量
        if (this.pool.size > 0) {
            //_1、从对象池中获取对象
            item = this.pool.get();
        } else {
            //_2、若没有空闲的对象，也就是对象不够用时，就克隆节点
            item = cc.instantiate(this.item);
        }
        return item;
    },
    removeItem(item){
        Log.info("放进去了吗",item)
        this.pool.put(item);
    }

    // update (dt) {},
});