/**
 * 设置按钮状态
 * 0 未聚焦
 * 1 聚焦
 * 2 未聚焦 + 附加(例如：已收藏)
 * 3 聚焦 + 附加(例如：已收藏)
 */
cc.Class({
    extends: cc.Component,

    properties: {
        renderTexture : {
            default : null,
            type : cc.Texture2D
        },
        renderRects : {
            default : [],
            type : [cc.Rect]
        },
        _iRenderRectIndex : 0,
    },

    onLoad:function() {
        this.setRenderRect(0);//默认加载先取第一张
    },
    setRenderTexture : function (texture) {
        this.renderTexture = texture;
    },
    setRenderRect : function (index) {
        this._iRenderRectIndex = index;
        let rectRender = this.renderRects[index];
        if(this.node.getComponent(cc.Sprite)&&rectRender){
            this.node.getComponent(cc.Sprite).spriteFrame = new cc.SpriteFrame(this.renderTexture,rectRender.clone());//原先的写法，有点啰嗦
            this.node.width = rectRender.width;
            this.node.height = rectRender.height;
        }
    },
    getRenderRectIndex : function () {
        return this._iRenderRectIndex;
    },
});