// 堆垛机当前运行状态对象
function CrnTask(crnData) {
    let that = this;

    // 访问公有属性，需要在变量名前加上this.
    that.crnNo = 0;
    that.run = false;
    // 上一数据
    that.preBay = 1 ;
    that.preLev = 1 ;
    that.preX = 0;
    that.preY = 0;
    that.preZ = 0;
    that.preForkPos = -1;    // -1, "不在定位" 0, "货叉原位" 1, "货叉在左侧远" 2, "货叉在左侧" 3, "货叉在右侧"  4, "货叉在右侧远"
    // 当前数据
    that.bay = 1 ;
    that.lev = 1 ;
    that.x = 0;
    that.y = 0;
    that.z = 0;
    that.forkPos = -1;

    // 构造函数
    let init = function () {
        that.crnNo = crnData.crnNo;
        that.bay = crnData.bay;
        that.lev = crnData.lev;
        that.x = crnData.position.x;
        that.y = crnData.position.y;
        that.z = crnData.position.z;
        that.forkPos = crnData.forkPos;
    };
    init();

    // 对外函数
    that.modify = function (crnData) {
        if (that.run || that.crnNo === 0) {
            console.error(that.crnNo + "号堆垛机更新失败");
        } else {
            // 上一次
            that.preBay = that.bay;
            that.preLev = that.lev;
            that.preX = that.x;
            that.preY = that.y;
            that.preY = that.y;
            that.preForkPos = that.forkPos;
            // 当前
            that.bay = crnData.bay;
            that.lev = crnData.lev;
            that.x = crnData.position.x;
            that.y = crnData.position.y;
            that.z = crnData.position.z;
            that.forkPos = crnData.forkPos;
            // create Route ------------------------------------------------
            //  new Route();    // body
            // new Route();    // load
            that.run = true;
            console.log(that);
        }
    }

}