1.使用说明代码内图片引用的事本地图片,使用时请自行准备图片 ,注意引用路径
<template>
<div id="app">
<h1 class="title">VUE实现九宫格抽奖</h1>
<div class="lottery">
<div class="lottery-item">
<div class="lottery-start">
<div class="box gray" v-if="isStart===0">
<p>活动未开始</p>
</div>
<div class="box" @click="startLottery" v-if="isStart===1">
<p><b>抽奖</b></p>
<p>消耗{{score}}积分</p>
</div>
<div class="box gray" v-if="isStart===2">
<p>活动已过期</p>
</div>
</div>
<ul>
<li v-for="(item,i) in list" :class="i==index?'on':''">
<div class="box">
<p><img :src="item.img" alt=""></p>
<p>{{item.title}}</p>
</div>
</li>
</ul>
</div>
</div>
<!-- 中奖弹窗 -->
<div class="mask" v-if="showToast"></div>
<div class="lottery-alert" v-if="showToast">
<h1>恭喜您</h1>
<p><img src="./assets/j2.png" alt=""></p>
<h2>获得{{list[index].title}}</h2>
<div class="btnsave" @click="showToast=false">确定</div>
</div>
</div>
</template>
<script>
export default {
name: 'app',
data() {
return {
isStart: 1,
score: 10, //消耗积分
list: [{
img: require('./assets/j1.png'),
title: '谢谢参与'
},
{
img: require('./assets/j2.png'),
title: '美女一个'
},
{
img: require('./assets/j1.png'),
title: '宝马一辆'
},
{
img: require('./assets/j2.png'),
title: '单车一辆'
},
{
img: require('./assets/j1.png'),
title: '鸡蛋一蓝'
},
{
img: require('./assets/j2.png'),
title: '500红包'
},
{
img: require('./assets/j1.png'),
title: '靓号一个'
},
{
img: require('./assets/j2.png'),
title: '鲜花一蓝'
}
], //奖品1-9
index: 0, // 当前转动到哪个位置，起点位置
count: 8, // 总共有多少个位置
timer: 0, // 每次转动定时器
speed: 200, // 初始转动速度
times: 0, // 转动次数
cycle: 50, // 转动基本次数：即至少需要转动多少次再进入抽奖环节
prize: -1, // 中奖位置
click: true,//标识是否处于抽奖状态
showToast: false, //显示中奖弹窗
}
},
methods: {
//抽奖方法
startLottery() {
if (!this.click) {
return
}
this.startRoll();
},
// 开始转动
startRoll() {
this.times += 1 // 转动次数
this.oneRoll() // 转动过程调用的每一次转动方法，这里是第一次调用初始化
// 如果当前转动次数达到要求 && 目前转到的位置是中奖位置
if (this.times > this.cycle + 10 && this.prize === this.index) {
clearTimeout(this.timer) // 清除转动定时器，停止转动
this.prize = -1
this.times = 0
this.speed = 200
this.click = true;
var that = this;
setTimeout(res => {
that.showToast = true;
}, 500)
} else {
if (this.times < this.cycle) {
this.speed -= 10 // 加快转动速度
} else if (this.times === this.cycle) {
const index = parseInt(Math.random() * 10, 0) || 0; // 随机获得一个中奖位置
this.prize = index; //中奖位置,可由后台返回
if (this.prize > 7) {
this.prize = 7
}
} else if (this.times > this.cycle + 10 && ((this.prize === 0 && this.index === 7) || this.prize === this.index +
1)) {
this.speed += 110
} else {
this.speed += 20
}
if (this.speed < 40) {
this.speed = 40
}
this.timer = setTimeout(this.startRoll, this.speed)
}
},
// 每一次转动
oneRoll() {
let index = this.index // 当前转动到哪个位置
const count = this.count // 总共有多少个位置
index += 1
if (index > count - 1) {
index = 0
}
this.index = index
},
}
}
</script>
<style>
#app {
font-family: 'Avenir', Helvetica, Arial, sans-serif;
-webkit-font-smoothing: antialiased;
-moz-osx-font-smoothing: grayscale;
text-align: center;
color: #2c3e50;
margin-top: 60px;
}
* {
margin: 0px;
padding: 0px;
box-sizing: border-box;
}
body {
background: radial-gradient(49% 160%, #22b5ff 0, #3a72fa 100%);
font-size: 14px;
}
img {
border: 0px;
}
ul,
li {
list-style-type: none;
}
.lottery-box {
overflow: hidden;
}
.lottery-box .title {
text-align: center;
padding: 50px 0;
font-size: 18px;
color: #fff;
}
.lottery {
animation: changeBg .5s ease infinite;
overflow: hidden;
padding: 20px;
width: 400px;
margin: 0 auto;
background-repeat: no-repeat;
background-size: 100% 100%;
margin-top: 20px;
}
@keyframes changeBg {
0% {
background-image: url(./assets/k1.png);
}
100% {
background-image: url(./assets/k2.png);
}
}
.lottery .lottery-item {
height: 340px;
position: relative;
margin-top: 10px;
margin-left: 10px;
}
.lottery .lottery-item ul li {
width: 33.33333333%;
position: absolute;
padding-right: 10px;
}
.lottery .lottery-item ul li:nth-child(2) {
left: 33.33333333%;
}
.lottery .lottery-item ul li:nth-child(3) {
left: 66.66666666%;
}
.lottery .lottery-item ul li:nth-child(4) {
left: 66.66666666%;
top: 110px;
}
.lottery .lottery-item ul li:nth-child(5) {
left: 66.66666666%;
top: 220px;
}
.lottery .lottery-item ul li:nth-child(6) {
left: 33.33333333%;
top: 220px;
}
.lottery .lottery-item ul li:nth-child(7) {
left: 0;
top: 220px;
}
.lottery .lottery-item ul li:nth-child(8) {
left: 0;
top: 110px;
}
.lottery .lottery-item ul li .box {
height: 100px;
position: relative;
text-align: center;
overflow: hidden;
background: url(./assets/bg2.png) no-repeat center;
background-size: 100% 100%;
}
.lottery .lottery-item ul li .box img {
display: block;
height: 50px;
margin: 0 auto;
margin-top: 10px;
margin-bottom: 5px;
}
.lottery .lottery-item ul li .box p {
color: #708ABF;
white-space: nowrap;
overflow: hidden;
text-overflow: ellipsis;
font-size: 14px;
}
.lottery .lottery-item ul li.on .box {
background: url(./assets/bg1.png) no-repeat center;
background-size: 100% 100%;
}
.lottery .lottery-item ul li.on .box p {
color: #fff;
}
.lottery .lottery-item .lottery-start {
position: absolute;
left: 33.33333333%;
width: 33.33333333%;
top: 110px;
padding-right: 10px;
}
.lottery .lottery-item .lottery-start .box {
height: 100px;
font-size: 14px;
color: #fff;
cursor: pointer;
text-align: center;
overflow: hidden;
background: url(./assets/bg1.png) no-repeat center;
background-size: 100% 100%;
}
.lottery .lottery-item .lottery-start .box p b {
font-size: 40px;
margin-top: 16px;
margin-bottom: 15px;
line-height: 30px;
display: block;
}
.lottery .lottery-item .lottery-start .box:active {
opacity: 0.7;
}
.lottery .lottery-item .lottery-start .box.gray {
background: url(./assets/bg3.png) no-repeat center;
background-size: 100% 100%;
}
.lottery .lottery-item .lottery-start .box.gray p {
color: #708ABF;
font-weight: bold;
}
.mask {
width: 100%;
height: 100%;
background: rgba(0, 0, 0, 0.7);
position: fixed;
overflow: hidden;
z-index: 222;
top: 0;
left: 0;
}
.lottery-alert {
max-width: 400px;
text-align: center;
z-index: 10000;
border-radius: 10px;
background: #fff;
padding: 20px;
position: fixed;
left: 0;
right: 0;
margin: auto;
top: 50%;
transform: translateY(-50%);
}
.lottery-alert h1 {
font-size: 18px;
font-weight: bold;
color: #D92B2F;
}
.lottery-alert img {
display: block;
height: 120px;
margin: 0 auto;
}
.lottery-alert h2 {
font-weight: normal;
color: #D92B2F;
font-size: 15px;
padding-top: 15px;
}
.lottery-alert p {
color: #666;
font-size: 16px;
padding-top: 5px;
}
.lottery-alert .btnsave {
border-radius: 3px;
box-shadow: none;
height: 40px;
cursor: pointer;
line-height: 40px;
color: #fff;
margin-top: 12px;
background: linear-gradient(180deg, rgba(213, 60, 63, 1) 0%, rgba(201, 20, 24, 1) 100%);
font-size: 16px;
}
</style>
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