微信小程序中石头剪刀布的实现

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'
 });
 }
})
　　

<view class="downView" >
 
 <text class="winNum">你已经获胜了<text style="color:red">{{winNum}}text>次text>
 <view class="showView">
 <image src="{{imageAiScr}}" class="gesturesImgL">image>
 <text class="winOrLost">{{gameOfPlay}}text>
 <image src="{{imageUserScr}}" class="gesturesImgR">image>
 view>
 
 
 
 <view class="chooseForUserView">
 <text class="winNum">出拳吧，少年~text>
 <view class="choose-V">
  <block wx:for="{{srcs}}">
  <view class="choose-view" bindtap="changeForChoose" id="{{index}}"> 
   <image class="choose-image" src="{{item}}" >image> 
  view> 
  block>
 view>
 
 <button class="againBtn" bindtap="again">再来!button> 
 
 view>
 
view>

/*底*/
.downView{
 width: 100%;
 height: 1250rpx;
 background: #FAE738;
 margin: 0rpx;
 text-align: center;
}
 
/*获胜次数*/
.winNum{
 padding-top: 40rpx;
 display: block;
 font-size: 30rpx; 
 color: #363527;
 font-weight:500;
}
 
/*展示出拳结果*/
.showView{
 display: flex; 
 width: 100%;
 margin-top:30rpx;
 height: 200rpx;
}
 
.gesturesImgL{
 height: 180rpx;
 width: 180rpx;
 margin-left:80rpx;
}
 
.gesturesImgR{
 height: 180rpx;
 width: 180rpx;
 margin-right:80rpx;
}
 
.winOrLost{
 color: orangered;
 flex:1;
 font-size: 30rpx;
 margin-top:75rpx;
}
 
/*用户出拳*/
.chooseForUserView{
 margin:40rpx;
 height: 800rpx;
 background: white;
 text-align: center;
}
 
.choose-V{
 display: flex;
 margin-top: 40rpx;
}
 
.choose-view{ 
 flex: 1;
 content:none !important;
 height: 140rpx;
 width: 140rpx;
 border:1px solid white;
} 
 
.choose-image{
 height: 160rpx;
 width: 160rpx;
 border-radius:80rpx;
}
 
/*再来*/
.againBtn{
 margin:80rpx;
 background: #FAE738;
}