利用原生JS写成小游戏——欢乐水果机
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
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">
<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:;"><img src="imgs/orange.png" alt=""></a></div>
<div><a href="javascript:;"><img src="imgs/ld.png" alt=""></a></div>
<div><a href="javascript:;"><img src="imgs/25.png" alt=""></a></div>
<div><a href="javascript:;"><img src="imgs/50.png" alt=""></a></div>
<div><a href="javascript:;"><img src="imgs/apple.png" alt=""></a></div>
<div><a href="javascript:;"><img src="imgs/apple2.png" alt=""></a></div>
</div>
<div class="right">
<div><a href="javascript:;"><img src="imgs/lemon.png" alt=""></a></div>
<div><a href="javascript:;"><img src="imgs/watermelon.png" alt=""></a></div>
<div><a href="javascript:;"><img src="imgs/watermelon2.png" alt=""></a></div>
<div><a href="javascript:;"><img src="imgs/right.png" alt=""></a></div>
<div><a href="javascript:;"><img src="imgs/apple.png" alt=""></a></div>
<div><a href="javascript:;"><img src="imgs/orange2.png" alt=""></a></div>
</div>
<div class="bottom">
<div><a href="javascript:;"><img src="imgs/orange.png" alt=""></a></div>
<div><a href="javascript:;"><img src="imgs/ld.png" alt=""></a></div>
<div><a href="javascript:;"><img src="imgs/seven2.png" alt=""></a></div>
<div><a href="javascript:;"><img src="imgs/seven.png" alt=""></a></div>
<div><a href="javascript:;"><img src="imgs/apple.png" alt=""></a></div>
<div><a href="javascript:;"><img src="imgs/lemon2.png" alt=""></a></div>
</div>
<div class="left">
<div><a href="javascript:;"><img src="imgs/lemon.png" alt=""></a></div>
<div><a href="javascript:;"><img src="imgs/star.png" alt=""></a></div>
<div><a href="javascript:;"><img src="imgs/star2.png" alt=""></a></div>
<div><a href="javascript:;"><img src="imgs/left.png" alt=""></a></div>
<div><a href="javascript:;"><img src="imgs/apple.png" alt=""></a></div>
<div><a href="javascript:;"><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;
}
});
到此结束，基本功能都能实现，如果有看不懂的地方或者游戏什么bug，都可以私信我或者评论；读者想要图片素材也可以直接私信我，把邮箱给我我打包发给你（我也是第一次写博客，有点激动233333）。