小程序抽奖大转盘／九宫格抽奖

//index.js //获取应用实例 var app = getApp() Page({ data: { circleList: [], //圆点数组 awardList: [], //奖品数组 colorCircleFirst: '#FFDF2F', //圆点颜色1 colorCircleSecond: '#FE4D32', //圆点颜色2 colorAwardDefault: '#F5F0FC', //奖品默认颜色 colorAwardSelect: '#ffe400', //奖品选中颜色 indexSelect: 0, //被选中的奖品index isRunning: false, //是否正在抽奖 imageAward: [ '../../images/1.png', '../../images/2.png', '../../images/3.png', '../../images/4.png', '../../images/5.png', '../../images/6.png', '../../images/8.png', '../../images/10.png' ], //奖品图片数组 jifenNums: [ '1积分', '2积分', '3积分', '4积分', '5积分', '6积分', '7积分', '8积分', '0积分' ], //奖品图片数组 }, onLoad: function() { var _this = this; //圆点设置 var leftCircle = 7.5; var topCircle = 7.5; var circleList = []; for (var i = 0; i < 24; i++) { if (i == 0) { topCircle = 15; leftCircle = 15; } else if (i < 6) { topCircle = 7.5; leftCircle = leftCircle + 102.5; } else if (i == 6) { topCircle = 15 leftCircle = 620; } else if (i < 12) { topCircle = topCircle + 94; leftCircle = 620; } else if (i == 12) { topCircle = 565; leftCircle = 620; } else if (i < 18) { topCircle = 570; leftCircle = leftCircle - 102.5; } else if (i == 18) { topCircle = 565; leftCircle = 15; } else if (i < 24) { topCircle = topCircle - 94; leftCircle = 7.5; } else { return } circleList.push({ topCircle: topCircle, leftCircle: leftCircle }); } this.setData({ circleList: circleList }) //圆点闪烁 setInterval(function() { if (_this.data.colorCircleFirst == '#FFDF2F') { _this.setData({ colorCircleFirst: '#FE4D32', colorCircleSecond: '#FFDF2F', }) } else { _this.setData({ colorCircleFirst: '#FFDF2F', colorCircleSecond: '#FE4D32', }) } }, 500) //设置圆点闪烁的效果 //奖品item设置 var awardList = []; //间距,怎么顺眼怎么设置吧. var topAward = 25; var leftAward = 25; for (var j = 0; j < 8; j++) { if (j == 0) { topAward = 25; leftAward = 25; } else if (j < 3) { topAward = topAward; //166.6666是宽.15是间距.下同 leftAward = leftAward + 166.6666 + 15; } else if (j < 5) { leftAward = leftAward; //150是高,15是间距,下同 topAward = topAward + 150 + 15; } else if (j < 7) { leftAward = leftAward - 166.6666 - 15; topAward = topAward; } else if (j < 8) { leftAward = leftAward; topAward = topAward - 150 - 15; } var imageAward = this.data.imageAward[j]; awardList.push({ topAward: topAward, leftAward: leftAward, imageAward: imageAward }); } this.setData({ awardList: awardList }) }, //开始抽奖 startGame: function() { if (this.data.isRunning) return this.setData({ isRunning: true }) var _this = this; var indexSelect = 0 var i = 0; var timer = setInterval(function() { indexSelect++; //这里我只是简单粗暴用y=30*x+200函数做的处理.可根据自己的需求改变转盘速度 let randomNum = Math.floor(Math.random() * 10) * 10; //可均衡获取0到90的随机整数 i += randomNum; if (i > 300) { //去除循环 clearInterval(timer) //获奖提示 let jifen = 1; let selectNum = _this.data.indexSelect console.log("选号：" + selectNum ); if (selectNum===0) { jifen = 2; } else if (selectNum === 1) { jifen = 3; } else if (selectNum === 2) { jifen = 4; } else if (selectNum === 3) { jifen = 5; } else if(selectNum === 4) { jifen = 6; } else if(selectNum === 5) { jifen = 8; } else if (selectNum === 6) { jifen = 10; } wx.showModal({ title: '恭喜您', content: '获得了' + jifen + "积分", showCancel: false, //去掉取消按钮 success: function(res) { if (res.confirm) { _this.setData({ isRunning: false }) } } }) } indexSelect = indexSelect % 8; _this.setData({ indexSelect: indexSelect }) }, (200 + i)) } })