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

    },
    //事件处理函数
    start: function() {
      let _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: function() { //点击确定后还原到0度
                let animation = wx.createAnimation({
                  duration: 100,
                  timingFunction: 'linear'
                });
                animation.rotate(0).step();
                _this.setData({
                  rotate: animation.export(),
                  turning: false
                });
                wx.redirectTo({
                  url:'/pages/pay/pay',
                })
              },
              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()
        var that=this
        db.collection("user")
        .where({
        "_openid":userid
        })
        .get({
            success: (res) => {
              console.log('请求成功',res);
              var o=res.data[0].cartlist.length-1
              console.log(o)
              var p=Math.round(Math.random()*o)
              console.log(p)
              that.setData({
                  list:res.data[0].cartlist[p].food_name
              })
          
              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)
            }
          })

    },
  
  
  })