WeChat 미니 프로그램에 가위바위보 구현

var numAi = 0
var timer
Page({
 data:{
 //控制按钮是否可点击
 btnState:false,
 //记录获胜次数
 winNum:0,
 //中间的话“Ho~ You Win”
 gameOfPlay:'',
 //用户选择的图片
 imageUserScr:'/pages/image/wenhao.png',
 //电脑随机的图片
 imageAiScr:'',
 //石头剪刀布图片数组
 srcs:[
 '/pages/image/shitou.png',
 '/pages/image/jiandao.png',
 '/pages/image/bu.png'
 ]
 },
 
 //生命周期，刚进来
 onLoad: function () {
 //获取本地缓存“已经获胜的次数”
 var oldWinNum = wx.getStorageSync('winNum');
 //如果有缓存，那么赋值，否则为0
 if(oldWinNum != null && oldWinNum !=''){
 this.data.winNum = oldWinNum;
 }
 this.timerGo();
 },
 
 //点击按钮
 changeForChoose(e){
 console.log();
 if(this.data.btnState == true){
 return;
 }
 
 //获取数组中用户的，石头剪刀布相应的图片。
 this.setData({
  imageUserScr:this.data.srcs[e.currentTarget.id]
 });
 //清除计时器
 clearInterval(timer);
 
 //获取数据源
 var user = this.data.imageUserScr;
 var ai = this.data.imageAiScr;
 var num = this.data.winNum;
 var str = '0.0~\nYou Lost!';
 
 //判断是否获胜
 if( user == "/pages/image/shitou.png" && ai == "/pages/image/jiandao.png"){
  //获胜后增加次数、改变文字内容、从新缓存获胜次数
  num++;
  str = 'Ho~\nYou Win!';
  wx.setStorageSync('winNum', num);
 };
 if(user == "/pages/image/jiandao.png" && ai == "/pages/image/bu.png"){
  num++;
  str = 'Ho~\nYou Win!';
  wx.setStorageSync('winNum', num);
 };
 if(user== "/pages/image/bu.png" && ai == "/pages/image/shitou.png"){
  num++;
  str = 'Ho~\nYou Win!';
  wx.setStorageSync('winNum', num);
 };
 
 //如果平局
 if(user == ai){
  str = 'Game Draw!';
 }
 
 //刷新数据
 this.setData({
  winNum:num,
  gameOfPlay:str,
  btnState:true
 });
 },
 
 //开启计时器
 timerGo(){
 timer = setInterval(this.move,100);
 },
 
 //ai滚动方法
 move(){
 //如果大于等于3，重置
 if(numAi>=3){
 numAi=0;
 }
 this.setData({
 //获取数组中Ai的，石头剪刀布相应的图片。
 imageAiScr: this.data.srcs[numAi],
 })
 numAi++;
 },
 
 again(){
 //控制按钮
 if(this.data.btnState == false){
 return;
 }
 //从新开始计时器
 this.timerGo();
 //刷新数据
 this.setData({
  btnState:false,
  gameOfPlay:'',
  imageUserScr:'/pages/image/wenhao.png'
 });
 }
})