git/scr/food/pages/turning/turning.js

//turning.js
//获取应用实例
let animation = wx.createAnimation({
  duration: 2000,
  timingFunction: 'linear'
})
const app=getApp()
const userid=app.globalData.openid
Page({
  data: {
    rotate: 0, //度数
    list:[],
    turning: false ,//是否点击
    detailObj:{},
    total:''

  },
  //事件处理函数
  start: function() {
    const _this = this;
    let cat = 60;
    if (!this.data.turning) {
      let rdm = 0; //随机度数
      rdm = Math.floor(Math.random() * 3600); //最大10圈
      //rdm = 1200;//直接确定转的度数
      animation.rotate(rdm).step();
      this.setData({
        rotate: animation.export(),
        turning: true
      });
      setTimeout(() => {
        this.setData({
          turning: false
        });
        let num = rdm % 360; //转了多少度
        //console.log(num);
        function showModal(str) {
          wx.showModal({
            title: '提示',
            content: str,
            success(res)  { //点击确定后还原到0度
              if (res.confirm) {
              let animation = wx.createAnimation({
                duration: 100,
                timingFunction: 'linear'
              });
              animation.rotate(0).step();
              _this.setData({
                rotate: animation.export(),
                turning: false
              })
            }
              var Selection=[]
              var detailObj=_this.data.detailObj
              var total=detailObj.price
                console.log(detailObj)
                console.log(total)
              Selection.push(detailObj)
               wx.redirectTo({
                url:'/pages/paying/paying?info='+JSON.stringify(Selection)+'&totalprice='+total,
              })
            },
            fail: function(res) {
              console.log(res)
            }
          })
        }
/*           if (num <= cat * 0.5 && num>=cat*0 || num>=cat*5.5 ) {
          showModal('今天就吃自选餐吧！不要再想了！GOGO');
        }else if (num <= cat * 1.5 && num >= cat * 0.5) {
          showModal('今天就吃麻辣烫吧！不要再想了！GOGO');
        } else if (num <= cat * 2.5 && num >= cat * 1.5) {
          showModal('今天就吃汉堡炸鸡吧！不要再想了！GOGO');
        } else if (num <= cat * 3.5 && num >= cat * 2.5) {
          showModal('今天就吃面食吧！不要再想了！GOGO');
        } else if (num <= cat * 4.5 && num >= cat * 3.5) {
          showModal('今天就吃烤盘饭吧！不要再想了！GOGO');
        } else if (num <= cat * 5.5 && num >= cat * 4.5) {
          showModal('今天就吃煎饼果子吧！不要再想了！GOGO');
        } */
        // console.log(num)
        var a= wx.getStorageSync('i')
        console.log(a)
        showModal('今天吃'+a)
      }, 2000)
    }

  },
  onLoad: function() {
      const db=wx.cloud.database()
      db.collection("user")
      .where({
      "_openid":userid
      })
      .get({
          success: (res) => {
            console.log('请求成功',res);
            //cartlist长度
            var o=res.data[0].cartlist.length-1
            //console.log(o)
            //随机在购物车里选择一件商品
            var p=Math.round(Math.random()*o)
            console.log(p)
            this.setData({
                list:res.data[0].cartlist[p].food_name,
                detailObj:res.data[0].cartlist[p]
            })
            var detailObj=this.data.detailObj
            console.log("cartlist内容：",detailObj)
           // console.log('请求成功2',res.data[0].cartlist[p].food_name);
            wx.setStorageSync('i', res.data[0].cartlist[p].food_name)
          },
          fail(err) {
            console.log("请求失败", err)
          }
        })

  },
})