Web前端--HTML+Canvas+Js实现3D魔方小游戏
一、案列效果
二、案例思路
1、先将平面上的6个DIV拼接在一起。形成一张类似于3d立方体图形展开的平面图。
2、我们需要将每一个面旋转到相应的位置上，每一个面的旋转轴都是不一样的。上下，左右，分别对应的旋转轴,以及旋转角度分别是：bottom(90deg),top(-90deg),right(90deg),left(-90deg)。同时要注意在旋转后面的时候，旋转轴为Z轴，并不是上下，左右边。浏览器上面的坐标系是这样的：Z轴是屏幕里外两个方向（向外为正，向里为负），X轴的水平方向（向右为正，向左为负）；
3、接下来还有一个关键的步骤，就是当变换导致元素在 3D 空间中旋转时，指定当元素背面朝向观察者时不可见；
4、接下来我们要做的就是设置一下所处环境，我们要设置成3D的环境，具体的语法形式如下：transform-style: preserve-3d;
5、然后我们为了让立方体旋转起来，以便更好的实现3D效果。首先找到旋转中心，在3D魔方中，旋转中心就是立方体的几何中心。
三、案列目录
四、代码实现
<html lang="en" style="font-size: 2.21333px;">
<head>
<meta charset="UTF-8">
<title>HTML5 3D魔方小游戏</title>
<meta name="viewport"
content="width=device-width,height=device-height,user-scalable=no,initial-scale=1.0,maximum-scale=1.0,minimum-scale=1.0">
<link rel="stylesheet" href="css/style.css">
</head>
<body>
<div class="ui">
<div class="ui__background" style="background: rgb(209, 213, 219);"></div>
<div class="ui__game">
<!-- <canvas width="2880" height="664" style="width: 1440px; height: 332px;"></canvas> -->
</div>
<div class="ui__texts">
<h1 class="text text--title" style="opacity: 1;">
<span><i style="opacity: 1; transform: rotate3d(0, 1, 0, 0deg);">T</i><i
style="opacity: 1; transform: rotate3d(0, 1, 0, 0deg);">H</i><i
style="opacity: 1; transform: rotate3d(0, 1, 0, 0deg);">E</i></span>
<span><i style="opacity: 1; transform: rotate3d(0, 1, 0, 0deg);">C</i><i
style="opacity: 1; transform: rotate3d(0, 1, 0, 0deg);">U</i><i
style="opacity: 1; transform: rotate3d(0, 1, 0, 0deg);">B</i><i
style="opacity: 1; transform: rotate3d(0, 1, 0, 0deg);">E</i></span>
</h1>
<div class="text text--note" style="opacity: 0.999789;">
双击魔方即可开始
</div>
<div class="text text--timer">
0:00
</div>
<div class="text text--complete">
<span>Complete!</span>
</div>
<div class="text text--best-time">
<svg class="icon" viewBox="0 0 576 512" style="width: 1.125em; height: 1em;">
<path fill="currentColor"
d="M552 64H448V24c0-13.3-10.7-24-24-24H152c-13.3 0-24 10.7-24 24v40H24C10.7 64 0 74.7 0 88v56c0 66.5 77.9 131.7 171.9 142.4C203.3 338.5 240 360 240 360v72h-48c-35.3 0-64 20.7-64 56v12c0 6.6 5.4 12 12 12h296c6.6 0 12-5.4 12-12v-12c0-35.3-28.7-56-64-56h-48v-72s36.7-21.5 68.1-73.6C498.4 275.6 576 210.3 576 144V88c0-13.3-10.7-24-24-24zM64 144v-16h64.2c1 32.6 5.8 61.2 12.8 86.2-47.5-16.4-77-49.9-77-70.2zm448 0c0 20.2-29.4 53.8-77 70.2 7-25 11.8-53.6 12.8-86.2H512v16zm-127.3 4.7l-39.6 38.6 9.4 54.6c1.7 9.8-8.7 17.2-17.4 12.6l-49-25.8-49 25.8c-8.8 4.6-19.1-2.9-17.4-12.6l9.4-54.6-39.6-38.6c-7.1-6.9-3.2-19 6.7-20.5l54.8-8 24.5-49.6c4.4-8.9 17.1-8.9 21.5 0l24.5 49.6 54.8 8c9.6 1.5 13.5 13.6 6.4 20.5z"
class=""></path>
</svg>
<span>Best Time!</span>
</div>
</div>
<div class="ui__prefs">
<div class="range" name="flip">
<div class="range__label">Flip Type</div>
<div class="range__track">
<div class="range__track-line"></div>
<div class="range__handle" style="left: 0%;">
<div style="background: rgb(65, 170, 200);"></div>
</div>
</div>
<div class="range__list">
<div>Swift </div>
<div>Smooth</div>
<div>Bounce</div>
</div>
</div>
<div class="range" name="scramble">
<div class="range__label">Scramble Length</div>
<div class="range__track">
<div class="range__track-line"></div>
<div class="range__handle" style="left: 0%;">
<div style="background: rgb(65, 170, 200);"></div>
</div>
</div>
<div class="range__list">
<div>20</div>
<div>25</div>
<div>30</div>
</div>
</div>
<div class="range" name="fov">
<div class="range__label">Camera Angle</div>
<div class="range__track">
<div class="range__track-line"></div>
<div class="range__handle" style="left: 18.6047%;">
<div style="background: rgb(65, 170, 200);"></div>
</div>
</div>
<div class="range__list">
<div>Ortographic</div>
<div>Perspective</div>
</div>
</div>
<div class="range" name="theme">
<div class="range__label">Color Scheme</div>
<div class="range__track">
<div class="range__track-line"></div>
<div class="range__handle" style="left: 0%;">
<div style="background: rgb(65, 170, 200);"></div>
</div>
</div>
<div class="range__list">
<div>Cube</div>
<div>Erno</div>
<div>Dust</div>
<div>Camo</div>
<div>Rain</div>
</div>
</div>
</div>
<div class="ui__stats">
<div class="stats" name="total-solves">
<i>Total solves:</i><b>-</b>
</div>
<div class="stats" name="best-time">
<i>Best time:</i><b>-</b>
</div>
<div class="stats" name="worst-time">
<i>Worst time:</i><b>-</b>
</div>
<div class="stats" name="average-5">
<i>Average of 5:</i><b>-</b>
</div>
<div class="stats" name="average-12">
<i>Average of 12:</i><b>-</b>
</div>
<div class="stats" name="average-25">
<i>Average of 25:</i><b>-</b>
</div>
</div>
<div class="ui__buttons">
<button class="btn btn--bl btn--stats">
<svg class="icon" viewBox="0 0 576 512" style="width: 1.125em; height: 1em;">
<path fill="currentColor"
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class=""></path>
</svg>
</button>
<button class="btn btn--bl btn--prefs"
style="transform: translate3d(0px, 0em, 0px); opacity: 0.998656; pointer-events: all;">
<svg class="icon" viewBox="0 0 512 512" style="width: 1em; height: 1em;">
<path fill="currentColor"
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class=""></path>
</svg>
</button>
<button class="btn btn--bl btn--back">
<svg class="icon" viewBox="0 0 512 512" style="width: 1em; height: 1em;">
<path transform="translate(512, 0) scale(-1,1)" fill="currentColor"
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class=""></path>
</svg>
</button>
<button class="btn btn--br btn--pwa"
style="color: rgb(65, 170, 200); transform: translate3d(0px, 0em, 0px); opacity: 0.998656; pointer-events: all;">
</button>
</div>
</div>
<script src="js/three.min.js"></script>
<script src="js/index.js"></script>
</body>
</html>
