"use strict";var t=require("../../bt/factory"),r=require("../../bt/base"),e=r.Status,i=r.createBehavior;module.exports=i({constructor:function(t){this.children=t||[],this.current=-1},start:function(){if(0===this.children.length)return!1;this.current=Math.round(Math.random()*(this.children.length-1));var t=this.children[this.current].start();return this.current=t?this.current:-1,t},stop:function(){-1!==this.current&&this.current<this.children.length&&(this.children[this.current].stop(),this.current=-1)},update:function(){var t=this.children[this.current].update();return t===e.PAUSED?e.IN_PROGRESS:t}}),t.addBehavior(module);