本文实例为大家分享了JS实现简单随机3D骰子的具体代码，供大家参考，具体内容如下
描述：
JS——实现简单的随机3D骰子。
效果：
实现：
html文件：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
</head>
<link rel="stylesheet" href="css/T1.css" >
<body>
<div class="dice">
<div class="face">
<div class="item1"></div>
</div>
<div class="face">
<div class="item2"></div>
<div class="item2"></div>
</div>
<div class="face">
<div class="item3"></div>
<div class="item3"></div>
<div class="item3"></div>
</div>
<div class="face">
<div class="face_0">
<div class="item4"></div>
<div class="item4"></div>
</div>
<div class="face_0">
<div class="item4"></div>
<div class="item4"></div>
</div>
</div>
<div class="face">
<div class="face_0">
<div class="item5"></div>
<div class="item5"></div>
</div>
<div class="face_0">
<div class="item5"></div>
</div>
<div class="face_0">
<div class="item5"></div>
<div class="item5"></div>
</div>
</div>
<div class="face">
<div class="face_0">
<div class="item6"></div>
<div class="item6"></div>
</div>
<div class="face_0">
<div class="item6"></div>
<div class="item6"></div>
</div>
<div class="face_0">
<div class="item6"></div>
<div class="item6"></div>
</div>
</div>
</div>
<p class="view"></p>
<p>
<button id="play">PLAY</button>
</p>
</body>
<script src="/UploadFiles/2021-04-02/T1.js">
css文件：
@keyframes rotate {
to {
transform: rotateX(360deg) rotateY(360deg);
}
}
@keyframes domo{
20%{
transform: rotateX(20deg);
}
60%{
transform: rotateX(20deg) rotateY(200deg);
}
100%{
transform: rotateX(100deg) rotateY(1000deg) rotateZ(-100deg);
}
}
.dice {
width: 300px;
height: 300px;
margin: 100px auto 200px;
position: relative;
transform-style: preserve-3d;
/* animation: rotate 2s; */
animation-duration: 3s;
animation-timing-function: linear;
transition: all 1s;
}
.dice:hover{
animation: domo 5s linear 0s infinite alternate;
}
.dice .face {
width: 100%;
height: 100%;
display: flex;
position: absolute;
left: 0;
top: 0;
border: 1px solid #000;
background: rgb(253, 250, 250);
border-radius: 20px;
font-size: 100px;
color: #fff;
line-height: 300px;
text-align: center;
}
.item1{
width: 100px;
height: 100px;
background: red;
border-radius: 50%;
}
.item2{
width: 75px;
height: 75px;
background: blue;
border-radius: 50%;
}
.item3{
width: 75px;
height: 75px;
background: blue;
border-radius: 50%;
}
.item4{
width: 75px;
height: 75px;
background: rgb(240, 54, 54);
border-radius: 50%;
}
.item5{
width: 75px;
height: 75px;
background: blue;
border-radius: 50%;
}
.item6{
width: 75px;
height: 75px;
background: blue;
border-radius: 50%;
}
.face:nth-child(1) {
justify-content: center;
align-items: center;
transform: translateZ(150px);
}
.face:nth-child(2) {
justify-content: space-around;
align-items: center;
transform: rotateX(-90deg) translateZ(150px);
}
.face:nth-child(3) {
justify-content: space-around;
align-items: center;
flex-wrap: wrap;
transform: rotateY(90deg) translateZ(150px);
}
.face:nth-child(4) {
flex-wrap: wrap;
justify-content: center;
align-items: center;
transform: rotateY(-90deg) translateZ(150px);
}
.face:nth-child(4) .face_0{
width: 300px;
height: 75px;
display: flex;
justify-content: space-around;
}
.face:nth-child(5) {
flex-wrap: wrap;
justify-content: center;
align-items: center;
transform: rotateX(90deg) translateZ(150px);
}
.face:nth-child(5) .face_0{
width: 300px;
height: 75px;
display: flex;
justify-content: space-around;
}
.face:nth-child(6) {
flex-wrap: wrap;
justify-content: center;
align-items: center;
transform: translateZ(-150px);
}
.face:nth-child(6) .face_0{
width: 300px;
height: 75px;
display: flex;
justify-content: space-around;
}
p {
text-align: center;
}
js文件：
(function () {
let odice = document.querySelector('.dice')
let oview = document.querySelector('.view')
let oplay = document.querySelector('#play') // 按钮
oplay.onclick = playTheGame
// 当骰子动画执行后
odice.addEventListener('webkitAnimationEnd', () => {
odice.style.animationName = 'none' // 更改动画属性，以待下一次动画的正常执行
// 可能出现的情况集合
let _posible = [
{ value: 1, x: 0, y: 0 },
{ value: 6, x: 0, y: 180 },
{ value: 3, x: 0, y: -90 },
{ value: 4, x: 0, y: 90 },
{ value: 5, x: -90, y: 0 },
{ value: 2, x: 90, y: 0 },
]
// 准备抽取的随机数
let _random = Math.floor(Math.random() * 6)
// 抽取的随机结果
let _result = _posible[_random]
setTimeout(() => { // 浏览器反应不过来加过渡
// 让骰子旋转到正确的角度
odice.style.transform = `
rotateX(${ _result.x }deg) rotateY(${ _result.y }deg)
`
renderView(_result.value) // 渲染视图
}, 0);
})
function playTheGame() { // 游戏方法
// 骰子转起来
// 有的时候浏览器在连续使用js操作css的时候会出现问题（反应不过来），比如，效果不能正常显示，此时可以尝试利用setTimeout-0来将目标代码放入到异步队列中等待执行
// setTimeout(() => {
odice.style.animationName = 'rotate'
// }, 0);
}
function renderView(result) { // 渲染结果到页面视图
oview.innerHTML = '您此次的投掷结果为：' + result
}
})();
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。