1、项目依赖

项目比较简单，依赖不多，目前除了基本的之外，只引入了有赞的移动端UI框架vant

# Vue 2 项目，安装 Vant 2：
npm i vant -S

# Vue 3 项目，安装 Vant 3：
npm i vant@next -S

2、收集资源

在网上收集关于看图猜成语的图片资源，推荐汉辞网

若侵权请联系作者删除

在src->assets目录下新建一个词条文件word.json
因为木有搭后台，直接就将词条信息写死在word.json文件了,下面简单列一下

[
    {
        "id": 1,
        "word": "鱼贯而入",
        "picture": "http://www.hydcd.com/cy/fkccy/images/CF91100-50.png",
        "mean": "象游鱼一样一个跟着一个地接连着走。形容一个接一个地依次序进入。",
        "story": "东晋集团苟安江南，南昌守将庾翼率军向北挺进，准备收复北方，统一中国，驻守襄阳一带。他手下官吏范汪向晋成帝上书说当前任务是练兵，积蓄粮草，待时机成熟再兴兵北伐。他说：“沔汉干涸，皆当鱼贯而行，推排而进”，反对北伐"
    },
    {
        "id": 2,
        "word": "四通八达",
        "picture": "http://www.hydcd.com/cy/fkccy/images/CF91100-51.png",
        "mean": "四面八方都有路可通。形容交通极便利。也形容通向各方。"
    }
]

3、编写vue模板

下面引入了两个媒体文件，一个是背景音乐，一个是错误提示音，将他们都隐藏，只在后台播放

<template>
  <div class="container">
    <van-nav-bar
      style="background-color:#643D12"
    >
    <span slot="title" style="color:#fff">第{{id}} / {{array.length}}关</span>
    <span slot="right" style="color:#C1A06D">{{score}}</span>
    </van-nav-bar>
  <div class="picture">
    <van-image :src="obj.picture" class="img" />
  </div>
  <div class="tips">
    <van-button type="warning" size="small" @click="jumpLevel(id-1)" :disabled="!showPrev">上一关</van-button>
    <van-button type="warning" size="small" @click="checkLevel" style="margin: 0 10px 0 20px">选 关</van-button>
    <span>{{time+1}}</span>
    <van-button type="warning" size="small" @click="handlePrompt" style="margin: 0 20px 0 10px">提 示</van-button>
    <van-button type="warning" size="small" @click="jumpLevel(id+1)" :disabled="!showNext">下一关</van-button>
  </div>
  <div class="result">
    <div v-for="(item,i) in choiced" :key="i">
      <span @click="handleCancel(i)" class="choiced-text">{{item}}</span>
    </div>
  </div>
  <div class="choice">
    <div v-for="(item,i) in choices.slice(0,8)" :key="i">
      <span @click="handleChoice(item,i)" class="choice-text">{{item}}</span>
    </div>
  </div>
  <div class="choice">
    <div v-for="(item,i) in choices.slice(8,16)" :key="i">
      <span @click="handleChoice(item,i+8)" class="choice-text">{{item}}</span>
    </div>
  </div>
  <div class="choice">
    <div v-for="(item,i) in choices.slice(16,24)" :key="i">
      <span @click="handleChoice(item,i+16)" class="choice-text">{{item}}</span>
    </div>
  </div>
  <div style="width:100%;text-align:center">
    <van-button type="warning" size="small" style="margin: 20px auto" @click="clearGame">重置记录</van-button>
    <p style="color:#666;font-size:12px">copyright: <a href="https://www.52fansite.com" target="_blank">凡繁烦</a></p>
  </div>
  <van-popup v-model="showLevel" position="bottom" style="height:40%">
    <div class="levels">
      <div v-for="(item,i) in array" :key="i" :class="['level-item',id==item.id ? 'active':'',item.played?'played':'']" @click="handleClickLevel(item)">
        <p>第{{i+1}}关</p>
        <p>
          <van-rate :value="item.star" count="3" size="16px" color="#FFD21E" readonly/>
        </p>
      </div>
    </div>
  </van-popup>
  <div :class="['music-btn',isPlay == '0'? 'bgm':'']" @click="handleClickBgm()" ref="playbtn">
    <van-icon name="music-o" size="36px"/>
    <div v-if="isPlay=='1'" class="stop-play"></div>
  </div>
  <audio src="../assets/music/bgm.mp3" controls="true" ref="bgm" style="display:none" loop="loop"></audio>
  <audio src="../assets/music/error.wav" controls="true" ref="error" style="display:none" ></audio>
  </div>
</template>

4、编写js逻辑

4.1引入vant弹框组件和轻提示组件

import { Dialog,Toast } from 'vant';

components: {
    [Dialog.Component.name]: Dialog.Component,
    [Toast.Component]: Toast.Component
},

4.2data变量声明

data(){
    return {
      id: null,
      score: 100,
      data: require('../assets/word'),
      array: [],
      obj: {},
      choices: [],
      choiced: [],
      showPrev: false,
      showNext: false,
      showLevel: false,
      star: 0,
      time: 1,
      timer: null,
      prompt: 0,
      isPlay: "0",
    }
  },

4.3监听部分变量值变化

这里使用vue的watch钩子监听,不了解的同学可以看一下vue watch的文档

监听关卡变化，我这里直接将id当成关卡处理了，如果真的要接后台的话，要自行增加关卡字段

id(val) {
    if(val <= 10){
      this.step = 2;
    }else if(val > 10 && val < 20){
      this.step = 5;
    }
    localStorage.setItem('level',val);
    if(val >=2){
      this.showPrev = true;
    }else{
      this.showPrev = false;
    }
    let playedArr = this.array.filter(it=>{
      return it.id>this.id && it.played
    })
    if(playedArr.length > 0 || this.obj.played){
      this.showNext = true;
    }else{
      this.showNext = false;
    }
}

监听分数变化,将当前的分数存储到localStorage，避免刷新后重置

score(val){
  localStorage.setItem('score',val);
}

监听已选汉字,处理错误逻辑

choiced(val){
      if(val.join('').length == 4){
        let wordArr = this.obj.word.split('');
        let doms = document.getElementsByClassName('choiced-text');
        let count = 0;
        wordArr.map((a,i) =>{
          if(a != val[i]){
            doms[i].style.color='red';
            count = count+1;
          }else{
            doms[i].style.color='#E3D479'
          }
        })
        if(count>0){
          this.$refs.error.play();
          if(this.isPlay=='0'){
            this.$refs.bgm.pause();
            this.$refs.error.addEventListener('ended',()=>{
              this.$refs.bgm.play();
            })
          }
        }
      }
    }