vue uniapp turntable lottery effect
html code:
<view class="activity-con">
<view class="activity-bacg">
<!-- Enter the carousel content on the homepage -->
<view class="activity-bacg-zhuanpan">
<view class="activity-bacg-zhuanpan-bg">
<!-- Turntable outer ring -->
<image mode="widthFix" src="../../static/zp-quan.png"></image>
<!-- Bisector circle -->
<view id="circle0" :class="[isRotate?'rotate':'']"
:style="{transform: 'rotate(' + rotate + 'deg)'}">
<!-- The first half of the cycle bisects the circle -->
<view id="left">
<view class="circle-left" :id="'rotate-' + i + '-' + (360/count)*i" v-for="(v,i) in count"
v-if="(count/2>i)"
:style="{ transform: 'rotate(' + (360/count)*i + 'deg)', 'background': (i%2==0?'linear-gradient(#fee59c,#fbefcf)': 'linear-gradient(#ffffff,#fbefcf)')}">
<label>￥123*{<!-- -->{(i + 1)}}</label>
</view>
</view>
<!-- Half of the circle after the loop -->
<view id="right">
<view class="circle-right" :id="'rotate-' + i + '-' + (360/count)*(i + 1)"
v-for="(v,i) in count" v-if="((count/2)<=i)"
:style="{ transform: 'rotate(' + (360/count)*(i + 1) + 'deg)', 'background': (i%2==0?'linear-gradient(#fee59c,# fbefcf)':'linear-gradient(#fbefcf,#ffffff)'), 'z-index':(count-i) }">
<label>￥123*{<!-- -->{(i + 1)}}</label>
</view>
</view>
</view>
<!-- Turntable go button -->
<view class="activity-bacg-zhuanpan-btn" @click="subActivity">
<image src="../../static/zp-go.png"></image>
</view>
</view>
</view>
</view>
</view>
<!-- The result box that pops up after the lottery results -->
<view class="activity-result" v-if="showResult">
<view class="activity-result-con">
<image mode="widthFix" src="../../static/zp-result.png"></image>
<view class="activity-result-text">
<view>1230 yuan cash discount coupon</view>
<view>A total of 10 coupons with a face value of 123 yuan</view>
</view>
<view class="activity-result-btn">
<button class="medium" type="round" @click="goIndex">Use now</button>
</view>
</view>
</view>
js code
<script>
export default {<!-- -->
components: {<!-- -->
headers,
},
data() {<!-- -->
return {<!-- -->
count: 10, //How many parts should the circle be divided into? The length can be taken from the data list returned by the interface.
index: 2, //The coordinates of the current winning number
rotate: '', //The rotation angle of the turntable after winning the prize
isRotate: false,
num: 3, //The wheel rotates for 3 seconds before locating the winning position
showResult: false,
}
},
methods: {<!-- -->
subActivity() {<!-- -->
this.isRotate = true
this.getDjs();
},
getDjs() {<!-- -->
var that = this;
if (that.num > 0) {<!-- -->
setTimeout(() => {<!-- -->
that.num--;
that.getDjs();
}, 1000)
} else {<!-- -->
that.num = 3;
that.isRotate = false;
// Calculation of rotation and positioning of the first half of the data: 360 degrees - the deg of the current winning result - the extra deg
if (that.index < (that.count / 2)) {<!-- -->
that.rotate = 360 - ((360 / that.count) * (that.index)) - (360 / that.count / 2);
}
// Calculation of rotation and positioning of the second half of the data: 360 degrees - the deg of the current winning result + the extra deg
if (that.index >= (that.count / 2)) {<!-- -->
that.rotate = 360 - ((360 / that.count) * (that.index + 1)) + (360 / that.count / 2);
}
that.showResult = true;
}
}
}
}
</script>
<style>
.activity-index {<!-- -->
width: 100%;
margin-top: 80px;
}
.activity-con {<!-- -->
width: 100%;
}
.activity-bacg {<!-- -->
width: 100%;
position: relative;
}
.activity-bacg-img {<!-- -->
width: 100%;
}
.activity-bacg-zhuanpan {<!-- -->
width: 260px;
position: absolute;
top: 32%;
left: 50%;
transform: translate(-50%, 0);
}
.activity-bacg-zhuanpan-bg {<!-- -->
width: 100%;
position: relative;
}
.activity-bacg-zhuanpan-bg image {<!-- -->
width: 100%;
}
/* Bisector circle */
.circle-left {<!-- -->
width: 115px;
height: 230px;
border-radius: 0px 115px 115px 0px;
position: absolute;
right: 0;
transform-origin: 0 50%;
}
.circle-left label {<!-- -->
display: inline-block;
text-indent: 0;
margin-top: 36px;
font-size: 14px;
line-height: 12px;
transform: rotate(109deg);
color: #FF5722;
font-weight: 500;
}
.circle-right {<!-- -->
width: 115px;
height: 230px;
border-radius: 115px 0px 0px 115px;
position: absolute;
right: 0;
transform-origin: 100% 50%;
}
.circle-right label {<!-- -->
display: inline-block;
text-indent: 0;
margin-top: 36px;
font-size: 14px;
line-height: 12px;
transform: rotate(66deg);
color: #FF5722;
font-weight: 500;
margin-right: 0px;
}
#circle0 {<!-- -->
width: 230px;
height: 230px;
border-radius: 115px;
background-color: white;
position: absolute;
transform: rotate(-22.5deg);
left: 15px;
top: 15px;
transform: rotate(36deg);
}
#left {<!-- -->
clip: rect(0px 115px 230px 0px);
position: absolute;
right: 0px;
width: 115px;
height: 230px;
overflow: hidden;
text-indent: -2px;
}
#right {<!-- -->
clip: rect(0px 115px 230px 0px);
position: absolute;
left: 0px;
width: 115px;
height: 230px;
overflow: hidden;
text-align: right;
}
/* Turntable button */
.activity-bacg-zhuanpan-btn {<!-- -->
position: absolute;
width: 60px;
height: 80px;
top: 45%;
left: 50%;
transform: translate(-50%, -50%);
}
.activity-bacg-zhuanpan-btn image {<!-- -->
width: 100%;
height: 100%;
}
/* Animation */
@keyframes rotation {<!-- -->
from {<!-- -->
transform: rotate(0deg);
}
to {<!-- -->
transform: rotate(360deg);
}
}
.rotate {<!-- -->
animation: rotation .4s infinite linear;
}
/* Winning results */
.activity-result {<!-- -->
position: fixed;
width: 100%;
height: 100%;
background-color: #ffffff7a;
top: 0;
left: 0;
}
.activity-result-con {<!-- -->
position: absolute;
width: 70%;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
}
.activity-result-con image {<!-- -->
width: 100%;
}
.activity-result-text {<!-- -->
position: absolute;
top: 35%;
text-align: center;
width: 100%;
font-size: 12px;
color: #666;
}
.activity-result-text view:first-child {<!-- -->
color: #b4350d;
font-weight: 600;
font-size: 16px;
margin-bottom: 10px;
}
.activity-result-btn {<!-- -->
position: absolute;
bottom: 50px;
width: 100%;
text-align: center;
}
.activity-result-btn button {<!-- -->
background-color: #fdcc83;
border: 0;
color: #8f3c00;
}
/* cpd sharing form */
.activity-bacg-share {<!-- -->
width: 260px;
position: absolute;
top: 32%;
left: 50%;
transform: translate(-50%, 0);
}
.activity-bacg-share-title {<!-- -->
margin-bottom: 10px;
}
</style>