<template>
 <div class="game">
 <h3>打地鼠游戲</h3>
 <div class="wraper">
  <div class="item" v-for="n in TOTAL" :key="n">
  <div : @click="clickItem">{{n}}號地鼠</div>
  </div>
 </div>
 <div class="scoped">
  <div class="set">
  <p>設置參數</p>
  <p>
   速度： <input type="number" v-model="setSpeed">
  </p>
  <p>
   總數：<input type="number" v-model="setNum">
  </p>
  <p>
   <button @click="playGame">開始</button>
  </p>
  </div>
  <div class="count set">
  <h4>統計分數面板</h4>
  <h4>總數： {{TOTAL}}</h4>
  <h4>擊中： {{clickNum}}</h4>
  <h4>擊中率： {{level}}%</h4>
  </div>
 </div>
 </div>
</template>
 
<script>
 
export default {
 name: 'App',
 data () {
 return {
  clickFlag: true, // 單個地鼠只能點擊一次
  setNum: 40, // 綁定設置地洞數量
  setSpeed: 1000, // 綁定設置地鼠出現速度
  speed: 2000, // 地鼠出現速度
  random: '', // 隨機出現的地鼠位置
  TOTAL: 40, // 地鼠總數
  count: 0, // 統計總共出現了多少次地鼠同于判斷不能大于總數
  clickNum: 0, // 點中地鼠統計
  timmerId: null
 };
 },
 computed: {
 // 統計打中的地鼠數量
 level: function () {
  let num = ((this.clickNum / this.TOTAL) * 100).toFixed(2) || 0;
  return num;
 }
 },
 created () {
 },
 mounted () {
 },
 methods: {
 // 開始游戲
 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; // 開放點擊
  this.count++;
  if (this.count >= this.TOTAL) {
   clearInterval(this.timmerId);
  }
  }, this.speed);
 },
 // 點擊地鼠
 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;
 }
 h3 {
 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;
 h4 {
  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;
  h4 {
  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>