359 lines
7.3 KiB
Vue
359 lines
7.3 KiB
Vue
<template>
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<view>
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<view class="box-ly-zp" :style="style_box">
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<view :animation="animationData" class="cs-ct" :style="style_wh">
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<view class="cs-line">
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<view class="cs-litem" v-for="(item,index) in awardsList" :key="index" :style="[{transform:'rotate('+item.lineTurn+')'},{'background-color':themeColor},{left:(width/2) +'rpx'},{height:(height/2) +'rpx'},{'-webkit-transform-origin': '50% ' +(height/2) +'rpx'},{'transform-origin': '50% ' +(height/2) +'rpx'}]"></view>
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</view>
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<view class="cs-list">
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<view class="cs-item" :style="{color: themeColor }" v-for="(iteml,index2) in awardsList" :key="index2">
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<view class="cs-item-text" :style="[{transform:'rotate('+iteml.turn+')'},{'-webkit-transform-origin': '50% ' +(height/2) +'rpx'},{'transform-origin': '50% ' +(height/2) +'rpx'}]">
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<text class="txt">{{iteml.name}}</text>
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<image lazy-load="true" class="cs-item-text-img" :src="iteml.img" @tap="toDetailPage({index: index2})"></image>
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</view>
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</view>
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</view>
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</view>
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<view @tap="playReward" class="cs-btn" :style="[{left:((width/2)-40) +'rpx'},{top:((height/2)-40) +'rpx'}]" v-bind:class="btnDisabled">开始 </view>
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<view class="cs-btn-table" :style="[{left:((width/2)-50) +'rpx'},{top:((height/2)+50) +'rpx'},{color: themeColor }]">剩余{{chance_num}}次</view>
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</view>
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</view>
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</template>
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<script>
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export default {
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props: {
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list: {
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type: Array,
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default () {
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return []
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}
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},
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height: {
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type: Number,
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default: 700
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},
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width: {
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type: Number,
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default: 700
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},
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themeColor: {
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type: String,
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default: '#33CCCC',
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},
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chance_num_init :{
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type: Number,
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default: 5
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},
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//停留位置
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stay_index :{
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type: Number,
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default: 1
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},
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},
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data() {
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return {
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chance: true,
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awardsList: {},
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animationData: {},
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btnDisabled: '',
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chance_num: 5
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};
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},
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watch:{
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list(){
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this.init()
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},
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chance_num_init(e){
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this.chance_num = e ;
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},
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},
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created() {
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this.init();
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this.chance_num = this.chance_num_init ;
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},
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computed: {
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style_box() {
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let that = this;
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var height = parseInt(that.height);
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var width = parseInt(that.width);
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var style = '';
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if (height > 0) {
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style = `height:${height}rpx;`;
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}
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if (width > 0) {
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style += `width:${width}rpx;`;
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}
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style += `border: 8rpx solid ${that.themeColor};`;
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return style;
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},
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style_wh() {
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let that = this;
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var height = parseInt(that.height);
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var width = parseInt(that.width);
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var style = '';
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if (height > 0) {
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style = `height:${height}rpx;`;
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}
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if (width > 0) {
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style += `width:${width}rpx;`;
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}
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return style;
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},
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},
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methods: {
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//详情页
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toDetailPage(item) {
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let that = this ;
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let list = that.awardsList ;
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let index = item.index ;
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let data = {
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curIndex: index,
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item : list[index] ,
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list: list
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};
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this.$emit('toDetailPage', data);
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},
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//画抽奖圆盘
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init: function() {
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var awards = this.list;
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var awardsList = [];
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var turnNum = 1 / awards.length * 360; // 文字旋转 turn 值
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// 奖项列表
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for (var i = 0; i < awards.length; i++) {
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awardsList.push({
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turn: i * turnNum + 'deg',
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lineTurn: i * turnNum + turnNum / 2 + 'deg',
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name: awards[i].name,
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img : awards[i].img,
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});
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}
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this.btnDisabled = this.chance ? '' : 'disabled';
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this.awardsList = awardsList;
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},
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//发起抽奖
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playReward: function() {
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let that = this ;
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if (this.chance_num == 0) {
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uni.showToast({
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title: '次数已经用完',
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icon: 'none'
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})
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return
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}
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//中奖index
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var awardsNum = that.list;
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//var awardIndex = Math.round(Math.random() * (awardsNum.length - 1)); //随机数
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var awardIndex = that.stay_index ;
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var runNum = 8; //旋转8周
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var duration = 4000; //时长
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// 旋转角度
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this.runDeg = this.runDeg || 0;
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this.runDeg = this.runDeg + (360 - this.runDeg % 360) + (360 * runNum - awardIndex * (360 / awardsNum.length))
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//创建动画
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var animationRun = uni.createAnimation({
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duration: duration,
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timingFunction: 'ease'
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})
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animationRun.rotate(that.runDeg).step();
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that.animationData = animationRun.export();
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that.btnDisabled = 'disabled';
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// 中奖提示
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var isAward = that.list[awardIndex].isAward || false;
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that.chance_num = that.chance_num - 1;
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if (isAward) {
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setTimeout(function() {
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that.btnDisabled = '';
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}.bind(that), duration);
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} else {
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setTimeout(function() {
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uni.showModal({
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title: '很遗憾',
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content: '没中 ' + (that.list[awardIndex].name),
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showCancel: false
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});
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that.btnDisabled = '';
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}.bind(that), duration);
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}
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setTimeout(function() {
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let data = {
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curIndex: awardIndex,
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item: that.list[awardIndex],
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list: that.list,
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isAward : isAward ,
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};
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this.$emit('result', data);
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}.bind(that), duration);
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}
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}
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}
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</script>
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<style>
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.txt{
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padding-top: 10upx;
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padding-bottom: 10upx;
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}
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/* 转盘 */
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.box-ly-zp {
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margin: 0 auto;
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position: relative;
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border-radius: 50%;
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box-shadow: 0 10upx 30upx #333, 0 0 10upx #000;
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}
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.cs-ct {
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position: absolute;
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left: 0;
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top: 0;
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z-index: 1;
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display: block;
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border-radius: inherit;
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background-clip: padding-box;
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}
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.cs-element {
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position: relative;
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z-index: 1;
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width: inherit;
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height: inherit;
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border-radius: 50%;
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}
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.cs-list {
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position: absolute;
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left: 0;
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top: 0;
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width: inherit;
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height: inherit;
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z-index: 9999;
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}
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.cs-item {
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position: absolute;
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left: 0;
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top: 0;
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width: 100%;
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height: 100%;
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font-weight: bold;
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text-shadow: 0 1upx 1upx rgba(255, 255, 255, 0.6);
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}
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.cs-item-text {
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position: relative;
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display: block;
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padding-top: 20upx;
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margin: 0 auto;
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text-align: center;
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display: flex;
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flex-direction: column;
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align-items: center;
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}
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.cs-item-text text {
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font-size: 30upx;
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}
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.cs-item-text-img {
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width: 60upx;
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height: 60upx;
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border-radius: 50%;
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}
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/* 分隔线 */
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.cs-line {
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position: absolute;
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left: 0;
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top: 0;
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width: inherit;
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height: inherit;
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z-index: 99;
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}
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.cs-litem {
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position: absolute;
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top: 0;
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width: 3upx;
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overflow: hidden;
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}
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/**
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* 抽奖按钮
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*/
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.cs-btn {
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position: absolute;
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background-color: #e44025;
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z-index: 400;
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width: 80upx;
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height: 80upx;
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border-radius: 50%;
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color: #f4e9cc;
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line-height: 80upx;
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text-align: center;
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font-size: 26upx;
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text-shadow: 0 -1px 1px rgba(0, 0, 0, 0.6);
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box-shadow: 0 3px 5px rgba(0, 0, 0, 0.6);
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text-decoration: none;
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}
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.cs-btn::after {
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position: absolute;
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display: block;
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content: ' ';
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left: 12upx;
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top: -44upx;
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width: 0;
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height: 0;
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overflow: hidden;
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border-width: 30upx;
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border-style: solid;
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border-color: transparent;
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border-bottom-color: #e44025;
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}
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.cs-btn.disabled {
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pointer-events: none;
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background: #b07a7b;
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color: #ccc;
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}
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.cs-btn.disabled::after {
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border-bottom-color: #b07a7b;
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}
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.cs-btn-table {
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width: 120upx;
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text-align: center;
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position: absolute;
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font-size: 26upx;
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background-color: #FFFFFF;
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opacity: 0.9;
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}
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</style>
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