编程 Javascript

利用原生JS实现欢乐水果机小游戏

Posted in Javascript onApril 23, 2020

简介：

玩家点击某个押注物品则在该物品上下注。点击开始则游戏开始，如果没有下注则不能开始游戏。
游戏中的物品有八中，分别为：苹果、西瓜、柠檬、橙子、铃铛、77、双星、BAR。
在放行游戏区左右方为押注区，每种物品下方有加减号按钮，每次点
击加号增加一个筹码注金，反之减号就减少一个筹码注金
开始：开始键
奖励：GOOD LUCK
由于这个时低配版的，我就没有按照原版的写进去，就是中了GOOD LUCK直接获得15分。
出于好耍，本人想起了小时候玩过的水果机，js也学了一会儿了，就想用它写一个简单的水果机玩玩，废话不多说，直接上代码，只有js有注释，html和css就没有注释了。
这是样式图

利用原生JS实现欢乐水果机小游戏

这里是html代码：

<!DOCTYPE html>
<html lang="en">
<head>
 <meta charset="UTF-8">
 <title>Fruit</title>
 <link rel="stylesheet" href="Fruit.css" rel="external nofollow" >
 <script src="Fruit.js"></script>
</head>
<body>
<div id="content">
 <h2>欢乐水果机</h2>
 <div class="box">
  <div class="top">
   <div><a href="javascript:;" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><img src="imgs/orange.png" alt=""></a></div>
   <div><a href="javascript:;" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><img src="imgs/ld.png" alt=""></a></div>
   <div><a href="javascript:;" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><img src="imgs/25.png" alt=""></a></div>
   <div><a href="javascript:;" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><img src="imgs/50.png" alt=""></a></div>
   <div><a href="javascript:;" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><img src="imgs/apple.png" alt=""></a></div>
   <div><a href="javascript:;" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><img src="imgs/apple2.png" alt=""></a></div>
  </div>
  <div class="right">
   <div><a href="javascript:;" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><img src="imgs/lemon.png" alt=""></a></div>
   <div><a href="javascript:;" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><img src="imgs/watermelon.png" alt=""></a></div>
   <div><a href="javascript:;" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><img src="imgs/watermelon2.png" alt=""></a></div>
   <div><a href="javascript:;" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><img src="imgs/right.png" alt=""></a></div>
   <div><a href="javascript:;" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><img src="imgs/apple.png" alt=""></a></div>
   <div><a href="javascript:;" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><img src="imgs/orange2.png" alt=""></a></div>
  </div>
  <div class="bottom">
   <div><a href="javascript:;" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><img src="imgs/orange.png" alt=""></a></div>
   <div><a href="javascript:;" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><img src="imgs/ld.png" alt=""></a></div>
   <div><a href="javascript:;" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><img src="imgs/seven2.png" alt=""></a></div>
   <div><a href="javascript:;" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><img src="imgs/seven.png" alt=""></a></div>
   <div><a href="javascript:;" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><img src="imgs/apple.png" alt=""></a></div>
   <div><a href="javascript:;" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><img src="imgs/lemon2.png" alt=""></a></div>
  </div>
  <div class="left">
   <div><a href="javascript:;" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><img src="imgs/lemon.png" alt=""></a></div>
   <div><a href="javascript:;" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><img src="imgs/star.png" alt=""></a></div>
   <div><a href="javascript:;" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><img src="imgs/star2.png" alt=""></a></div>
   <div><a href="javascript:;" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><img src="imgs/left.png" alt=""></a></div>
   <div><a href="javascript:;" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><img src="imgs/apple.png" alt=""></a></div>
   <div><a href="javascript:;" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><img src="imgs/ld2.png" alt=""></a></div>
  </div>
  <button class="begin">开始</button>
  <div class="stake">
   <div class="stake_left">
    <div>
     <img src="imgs/apple.png" alt="">
     <button class="minus">-</button>
     <span>0</span>
     <button class="add">+</button>
    </div>
    <div>
     <img src="imgs/orange.png" alt="">
     <button class="minus">-</button>
     <span>0</span>
     <button class="add">+</button>
    </div>
    <div>
     <img src="imgs/lemon.png" alt="">
     <button class="minus">-</button>
     <span>0</span>
     <button class="add">+</button>
    </div>
    <div>
     <img src="imgs/ld2.png" alt="">
     <button class="minus">-</button>
     <span>0</span>
     <button class="add">+</button>
    </div>
   </div>
   <div class="stake_right">
    <div>
     <img src="imgs/watermelon.png" alt="">
     <button class="minus">-</button>
     <span>0</span>
     <button class="add">+</button>
    </div>
    <div>
     <img src="imgs/star.png" alt="">
     <button class="minus">-</button>
     <span>0</span>
     <button class="add">+</button>
    </div>
    <div>
     <img src="imgs/seven.png" alt="">
     <button class="minus">-</button>
     <span>0</span>
     <button class="add">+</button>
    </div>
    <div>
     <img src="imgs/50.png" alt="">
     <button class="minus">-</button>
     <span>0</span>
     <button class="add">+</button>
    </div>
   </div>
  </div>
  <span id="move"></span>
  <span id="getScore">中将金额<p>0</p></span>
  <span id="allScore">当前余额<p>0</p></span>
  <button id="change">充值￥100</button>
 </div>
</div>
</body>
</html>

加上一点简单的css布局

* {
 margin: 0;
 padding: 0;
 list-style: none;
 text-decoration: none;
}

img {
 display: block;
}

#content {
 width: 1200px;
 height: 1200px;
 margin: 0 auto;
 text-align: center;
}

.box {
 width: 1000px;
 height: 100%;
 margin: 0 auto;
 background-color: blue;
 position: relative;
}
.top{
 width: 600px;
 height: 100px;
 display: flex;
 position: absolute;
 top: 50px;
 left: 150px;
}
.right{
 width: 100px;
 height: 600px;
 position: absolute;
 top: 50px;
 right: 150px;
}
.bottom{
 width: 600px;
 height: 100px;
 display: flex;
 flex-direction: row-reverse;
 position: absolute;
 top: 650px;
 right: 150px;
}
.left{
 width: 100px;
 height: 600px;
 display: flex;
 flex-flow: column-reverse;
 position: absolute;
 top: 150px;
 left: 150px;
}
.stake>div>div{
 width: 100px;
 height: 150px;
 font-size: 20px;
}
.stake>div>div>img{
 border: 1px solid black;
}
.stake>div>div>button{
 width: 30px;
 height: 30px;
 font-size: 25px;
 background-color: #fff3fc;
 border: 1px solid black;
}
.stake_left{
 position: absolute;
 top: 100px;
 left: 25px;
}
.stake_right{
 position: absolute;
 top: 100px;
 right: 25px;
}
#move{
 display: block;
 width: 98px;
 height: 98px;
 border: 2px solid purple;
 position: absolute;
 top: 50px;
 left: 150px;
}
#getScore{
 display: block;
 width: 200px;
 height: 50px;
 font-size: 35px;
 position: absolute;
 top: 200px;
 left: 290px;
}
#getScore>p{
 display: block;
 width: 200px;
 height: 50px;
 border: 2px solid yellow;
}
#allScore{
 display: block;
 width: 200px;
 height: 50px;
 font-size: 35px;
 position: absolute;
 top: 200px;
 right: 290px;
}
#allScore>p{
 display: block;
 width: 200px;
 height: 50px;
 border: 2px solid yellow;
}
.begin{
 width: 120px;
 height: 30px;
 position: absolute;
 top: 700px;
 right: 15px;
 background-color: pink;
}
#change{
 width: 120px;
 height: 30px;
 position: absolute;
 top: 25px;
 right: 15px;
}

最后是js部分

window.addEventListener('load', function (ev) {
 //获取使用元素
 var begin = document.querySelector('.begin');
 var move = document.querySelector('#move');
 var getScore = document.querySelector('#getScore>p');
 var allScore = document.querySelector('#allScore>p');
 var change = document.querySelector('#change');
 var pours = document.querySelectorAll('.stake span');
 var add = document.querySelectorAll('.stake .add');
 var minus = document.querySelectorAll('.stake .minus');
 var timer = null;  //定义两个空对象null
 var time = null;
 var flag = null;  //定义一个flag，以此来判断是否下注
 var Score = 0;   //Score为当前余额
 //开始按钮点击事件
 begin.addEventListener('click', function (evt) {
  //每次点击开始的时候都从第一个开始
  move.style.left = 150 + 'px';
  move.style.top = 50 + 'px';
  clickMove(Score); //调用开始按钮的点击事件函数
 });

 //开始按钮的点击事件函数
 function clickMove(score) {
  //判断flag的值，for循环判断每一个水果是否有下注，如果都为下注，flag为false；
  //反之有任意一个水果有下注，flag都为true；
  for (var i = 0; i < pours.length; i++) {
   //先判断flag的值，再调用函数判断每个水果是否下注
   if (flag) {
    break;
   }
   decide_pour(pours[i]);
  }
  //点击开始按钮的条件
  if (score === 0) {//先判断是否有余额
   alert('您的余额已不足，请充值后再开始！');
  } else if (!flag) {//再判断flag的值，flag为false执行当前代码。
   alert('您未下注，请下注后再开始！');
  } else {//如果上诉都满足了，则可以执行开始按钮
   clearInterval(timer); //定时器先清后设。
   var randNum = Math.ceil(Math.random() * 200) * 24; //定义一个0-4800的随机整数
   var scoreNum = Math.floor(randNum / 20 % 24 + 1); //利用上随机数来获得移动过后得到的水果的索引号
   timer = setInterval(function () {  //定时器使得可以让move盒子移动起来
    var moveLeft = move.offsetLeft;
    var moveTop = move.offsetTop;
    if (moveTop === 50 && moveLeft <= 650) {
     move.style.left = moveLeft + 100 + 'px';
    } else if (moveLeft >= 650 && moveTop >= 50 && moveTop <= 550) {
     move.style.top = moveTop + 100 + 'px';
    } else if (moveTop >= 650 && moveLeft <= 750 && moveLeft >= 250) {
     move.style.left = moveLeft - 100 + 'px';
    } else if (moveLeft <= 150 && moveTop <= 750 && moveTop > 50) {
     move.style.top = moveTop - 100 + 'px';
    }
   }, 20);
   begin.disabled = true;      //move盒子停止移动后才能再次点击开始按钮
   for (var i = 0; i < add.length; i++) {  //利用for循环使得每个下注按钮和取消下注按钮开始之后就不能被点击
    add[i].disabled = true;     // move盒子停止移动后才能再次点击下注和取消下注按钮
    minus[i].disabled = true;
   }
   time = setTimeout(function () {  //结束的判断
    clearInterval(timer);     //当到达指定的随机数时间后，清除定时器timer，move盒子停止运动
    setTimeout(function () {
     switch (scoreNum) {
      case 5:
      case 11:
      case 17:
      case 23:
       score = reward(1) * 5;
       getScore.innerText = score;
       sum(score);
       break;
      case 6:
       score = reward(1) * 10;
       getScore.innerText = score;
       sum(score);
       break;
      case 1:
      case 13:
       score = reward(2) * 10;
       getScore.innerText = score;
       sum(score);
       break;
      case 12:
       score = reward(2) * 20;
       getScore.innerText = score;
       sum(score);
       break;
      case 7:
      case 19:
       score = reward(3) * 10;
       getScore.innerText = score;
       sum(score);
       break;
      case 18:
       score = reward(3) * 20;
       getScore.innerText = score;
       sum(score);
       break;
      case 2:
      case 14:
       score = reward(4) * 10;
       getScore.innerText = score;
       sum(score);
       break;
      case 24:
       score = reward(4) * 20;
       getScore.innerText = score;
       sum(score);
       break;
      case 8:
       score = reward(5) * 20;
       getScore.innerText = score;
       sum(score);
       break;
      case 9:
       score = reward(5) * 40;
       getScore.innerText = score;
       sum(score);
       break;
      case 20:
       score = reward(6) * 20;
       getScore.innerText = score;
       sum(score);
       break;
      case 21:
       score = reward(6) * 40;
       getScore.innerText = score;
       sum(score);
       break;
      case 16:
       score = reward(7) * 20;
       getScore.innerText = score;
       sum(score);
       break;
      case 15:
       score = reward(7) * 40;
       getScore.innerText = score;
       sum(score);
       break;
      case 10:
      case 22:
       score = 15;
       sum(score);
       break;
      case 3:
       score = reward(8) * 25;
       getScore.innerText = score;
       sum(score);
       break;
      case 4:
       score = reward(8) * 50;
       getScore.innerText = score;
       sum(score);
       break;
     }    //当停止运动后，算出当前获得的分数，并加在当前余额上
     for (var i = 0; i < add.length; i++) { //利用for循环对上一次下注的清零，然后下注和取消下注停止禁用
      add[i].previousElementSibling.innerText = 0;
      add[i].disabled = false;
      minus[i].disabled = false;
     }
     begin.disabled = false;    //开始按钮停止禁用
     score = 0;       //获得的分数清零
    }, 500);       //当move盒子停止运动后，0.5s后执行定时器time里的定时器
    flag = false;        //当move盒子停止运动后，flag的值重新变为false
   }, randNum);         //利用上面定义的随机数来控制盒子的随机运动

  }
 }

 //充值按钮，每点击一次，当前余额增加100
 change.addEventListener('click', function (evt) {
  allScore.innerText = Score += 100;
  //console.log(Score);
  Score = allScore.innerText - 0;  //string强制转换为number
 });
 //下注按钮
 for (var i = 0; i < add.length; i++) {
  decide_minus();   //调用函数判断取消下注是否可以点击，每点击一次下注和取消下注都要判断取消下注按钮是否可以点击
  //给每个下注按钮绑定点击事件
  add[i].addEventListener('click', function (evt) {
   //判断有无余额
   if (Score <= 0) {
    alert('您的余额已不足，请充值后再下注');
   } else {
    this.previousElementSibling.innerText++;
    decide_minus();
    Score--;
    allScore.innerText = Score;
   }

  });
  minus[i].addEventListener('click', function (evt) {
   this.nextElementSibling.innerText--;
   decide_minus();
   Score++;
   allScore.innerText = Score;
  });
 }

 //判断是否下注函数
 function decide_pour(obj) {
  var nums = obj.innerText - 0;
  nums !== 0 ? flag = true : flag = false;
 }

 //判断是否可以点击取消下注按钮，当未下注时，不能点击取消下注按钮
 function decide_minus() {
  for (var i = 0; i < add.length; i++) {
   pours[i].innerText - 0 <= 0 ? pours[i].previousElementSibling.disabled = true : pours[i].previousElementSibling.disabled = false
  }
 }

 //返回当前move盒子停在的水果的下注次数
 function reward(number) {
  return pours[number-1].innerText - 0;
 }

 //获得的分数加在当前余额上
 function sum(score) {
  allScore.innerText = Score += score;
 }
});

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利用原生JS实现欢乐水果机小游戏

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RollinsLy

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