// 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

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;
        //     }
        // },
    },

    // LIFE-CYCLE CALLBACKS:

    onLoad () {
        this.index = 0;
        this.count = 0;
        this.flora = null;    
    },
    /**
     * 加载精灵
     * @param {*} index 
     */
    loadSprite: function(index) {             
        var node = cc.instantiate(this.flora);           
        cc.log("------------index-----------: " , index);                     
        let self = this;
        var name = 'bg/bg' + index;           
        cc.loader.loadRes(name, cc.SpriteFrame, function(err, spFrame) {            
            // if (self.index == 3) {
            //     self.index = 0;
            //     ++index;
            // }
            
            if (self.count == 5) return;
            if (err) {
                cc.log(err.message || err);
                return;
            }
            let node = new cc.Node('newNode');
            const sprite = node.addComponent(cc.Sprite);
            sprite.spriteFrame = spFrame;
            node.anchorY = 0;
            node.anchorX = 0;
            node.x = 0;
            node.y = -self.node.getContentSize().height * self.count;                    
            self.node.addChild(node);
            // ++self.index;
            ++self.count;
            self.loadSprite(index);   
            var flora = cc.instantiate(self.flora);
            flora.x = (self.count % 2 == 0 ) ? 100 : 500;
            flora.y = 300;
            node.addChild(flora);
        });
    },   
    start () {

    },

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