<template>
 <div class="game">
 <h2>打地鼠游戏</h2>
 <div class="wraper">
 <div class="item" v-for="n in TOTAL" :key="n">
 <div :style="{'visibility': random === n " @click="clickItem">{{n}}号地鼠</div>
 </div>
 </div>
 <div class="scoped">
 <div class="set">
 <p>设置参数</p>
 <p>
 速度： <input type="number" v-model="setSpeed">
 </p>
 <p>
 总数：<input type="number" v-model="setNum">
 </p>
 <p>
 <button @click="playGame">开始</button>
 </p>
 </div>
 <div class="count set">
 <h3>统计分数面板</h3>
 <h3>总数： {{TOTAL}}</h3>
 <h3>击中： {{clickNum}}</h3>
 <h3>击中率： {{level}}%</h3>
 </div>
 </div>
 </div>
</template>
 
<script>
 
export default {
 name: 'App',
 data () {
 return {
 clickFlag: true, // 单个地鼠只能点击一次
 setNum: 40, // 绑定设置地洞数量
 setSpeed: 1000, // 绑定设置地鼠出现速度
 speed: 2000, // 地鼠出现速度
 random: '', // 随机出现的地鼠位置
 TOTAL: 40, // 地鼠总数
 count: 0, // 统计总共出现了多少次地鼠同于判断不能大于总数
 clickNum: 0, // 点中地鼠统计
 timmerId: null
 };
 },
 computed: {
 // 统计打中的地鼠数量
 level: function () {
 let num = ((this.clickNum / this.TOTAL) * 100).toFixed(2) || 0;
 return num;
 }
 },
 created () {
 },
 mounted () {
 },
 methods: {
 // 开始游戏
 playGame () {
 this.random = '';
 this.speed = parseInt(this.setSpeed);
 this.TOTAL = parseInt(this.setNum);
 clearInterval(this.timmerId);
 this.timmerId = setInterval(() => {
 this.random = Math.floor(Math.random() * this.TOTAL + 1);
 this.clickFlag = true; // 开放点击
 this.count++;
 if (this.count >= this.TOTAL) {
 clearInterval(this.timmerId);
 }
 }, this.speed);
 },
 // 点击地鼠
 clickItem () {
 if (this.clickFlag) {
 (this.count < this.TOTAL) && this.clickNum++;
 this.clickFlag = false;
 }
 }
 }
};
</script>
<style lang="less" scoped>
.game {
 border: 1px solid #ccc;
 width: 1200px;
 padding: 10px;
 user-select: none;
 &::after {
 content: "";
 display: block;
 clear: both;
 }
 h2 {
 font-size: 16px;
 color: #eee;
 padding: 10px 0;
 margin-bottom: 20px;
 border-bottom: 1px solid #ccc;
 }
 .wraper {
 width: 900px;
 float: left;
 }
 .scoped {
 width: 260px;
 height: 540px;
 float: left;
 padding-left: 15px;
 border-left: 1px solid #ccc;
 h3 {
 font-size: 16px;
 color: #fff;
 }
 .set {
 height: 200px;
 width: 100%;
 border: 1px solid #ccc;
 p {
 padding: 10px;
 text-align: center;
 color: #fff;
 font-size: 16px;
 button {
 width: 90%;
 }
 }
 }
 .count {
 .set;
 margin-top: 20px;
 padding-top: 25px;
 text-align: center;
 line-height: 40px;
 h3 {
 font-weight:normal;
 }
 }
 }
 .item {
 display: inline-block;
 height: 100px;
 width: 100px;
 border-radius: 50px;
 margin: 0 10px 10px 0;
 text-align: center;
 line-height: 100px;
 font-size: 20px;
 border: 1px solid #ccc;
 div {
 height: 100%;
 background: #eee;
 border-radius: 50px;
 }
 }
}
</style>