带声音的烟花模拟绽放特效插件，先来看看效果：
部分核心的代码如下(全部代码在文章末尾)：
<!DOCTYPE html>
<html lang="en" >
<head>
<meta charset="UTF-8">
<title>Firework Simulator v2</title>
<meta name="viewport" content="width=device-width, initial-scale=1, user-scalable=no">
<meta name="mobile-web-app-capable" content="yes">
<meta name="apple-mobile-web-app-capable" content="yes">
<meta name="theme-color" content="#000000">
<link rel="shortcut icon" type="image/png" href="https://s3-us-west-2.amazonaws.com/s.cdpn.io/329180/firework-burst-icon-v2.png">
<link rel="icon" type="image/png" href="https://s3-us-west-2.amazonaws.com/s.cdpn.io/329180/firework-burst-icon-v2.png">
<link rel="apple-touch-icon-precomposed" href="https://s3-us-west-2.amazonaws.com/s.cdpn.io/329180/firework-burst-icon-v2.png">
<meta name="msapplication-TileColor" content="#000000">
<meta name="msapplication-TileImage" content="https://s3-us-west-2.amazonaws.com/s.cdpn.io/329180/firework-burst-icon-v2.png">
<link href="https://fonts.googleapis.com/css?family=Russo+One" rel="stylesheet"><link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/meyer-reset/2.0/reset.min.css">
<link rel="stylesheet" href="./src/style.css">
</head>
<body>
<!-- partial:index.partial.html -->
<!-- SVG Spritesheet -->
<div style="height: 0; width: 0; position: absolute; visibility: hidden;">
<svg xmlns="http://www.w3.org/2000/svg">
<symbol id="icon-play" viewBox="0 0 24 24">
<path d="M8 5v14l11-7z"/>
</symbol>
<symbol id="icon-pause" viewBox="0 0 24 24">
<path d="M6 19h4V5H6v14zm8-14v14h4V5h-4z"/>
</symbol>
<symbol id="icon-close" viewBox="0 0 24 24">
<path d="M19 6.41L17.59 5 12 10.59 6.41 5 5 6.41 10.59 12 5 17.59 6.41 19 12 13.41 17.59 19 19 17.59 13.41 12z"/>
</symbol>
<symbol id="icon-settings" viewBox="0 0 24 24">
<path d="M19.43 12.98c.04-.32.07-.64.07-.98s-.03-.66-.07-.98l2.11-1.65c.19-.15.24-.42.12-.64l-2-3.46c-.12-.22-.39-.3-.61-.22l-2.49 1c-.52-.4-1.08-.73-1.69-.98l-.38-2.65C14.46 2.18 14.25 2 14 2h-4c-.25 0-.46.18-.49.42l-.38 2.65c-.61.25-1.17.59-1.69.98l-2.49-1c-.23-.09-.49 0-.61.22l-2 3.46c-.13.22-.07.49.12.64l2.11 1.65c-.04.32-.07.65-.07.98s.03.66.07.98l-2.11 1.65c-.19.15-.24.42-.12.64l2 3.46c.12.22.39.3.61.22l2.49-1c.52.4 1.08.73 1.69.98l.38 2.65c.03.24.24.42.49.42h4c.25 0 .46-.18.49-.42l.38-2.65c.61-.25 1.17-.59 1.69-.98l2.49 1c.23.09.49 0 .61-.22l2-3.46c.12-.22.07-.49-.12-.64l-2.11-1.65zM12 15.5c-1.93 0-3.5-1.57-3.5-3.5s1.57-3.5 3.5-3.5 3.5 1.57 3.5 3.5-1.57 3.5-3.5 3.5z"/>
</symbol>
<symbol id="icon-sound-on" viewBox="0 0 24 24">
<path d="M3 9v6h4l5 5V4L7 9H3zm13.5 3c0-1.77-1.02-3.29-2.5-4.03v8.05c1.48-.73 2.5-2.25 2.5-4.02zM14 3.23v2.06c2.89.86 5 3.54 5 6.71s-2.11 5.85-5 6.71v2.06c4.01-.91 7-4.49 7-8.77s-2.99-7.86-7-8.77z"/>
</symbol>
<symbol id="icon-sound-off" viewBox="0 0 24 24">
<path d="M16.5 12c0-1.77-1.02-3.29-2.5-4.03v2.21l2.45 2.45c.03-.2.05-.41.05-.63zm2.5 0c0 .94-.2 1.82-.54 2.64l1.51 1.51C20.63 14.91 21 13.5 21 12c0-4.28-2.99-7.86-7-8.77v2.06c2.89.86 5 3.54 5 6.71zM4.27 3L3 4.27 7.73 9H3v6h4l5 5v-6.73l4.25 4.25c-.67.52-1.42.93-2.25 1.18v2.06c1.38-.31 2.63-.95 3.69-1.81L19.73 21 21 19.73l-9-9L4.27 3zM12 4L9.91 6.09 12 8.18V4z"/>
</symbol>
</svg>
</div>
<!-- App -->
<div class="container">
<div class="loading-init">
<div class="loading-init__header">Loading</div>
<div class="loading-init__status">Assembling Shells</div>
</div>
<div class="stage-container remove">
<div class="canvas-container">
<canvas id="trails-canvas"></canvas>
<canvas id="main-canvas"></canvas>
</div>
<div class="controls">
<div class="btn pause-btn">
<svg fill="white" width="24" height="24"><use href="#icon-pause" xlink:href="#icon-pause"></use></svg>
</div>
<div class="btn sound-btn">
<svg fill="white" width="24" height="24"><use href="#icon-sound-off" xlink:href="#icon-sound-off"></use></svg>
</div>
<div class="btn settings-btn">
<svg fill="white" width="24" height="24"><use href="#icon-settings" xlink:href="#icon-settings"></use></svg>
</div>
</div>
<div class="menu hide">
<div class="menu__inner-wrap">
<div class="btn btn--bright close-menu-btn">
<svg fill="white" width="24" height="24"><use href="#icon-close" xlink:href="#icon-close"></use></svg>
</div>
<div class="menu__header">Settings</div>
<div class="menu__subheader">For more info, click any label.</div>
<form>
<div class="form-option form-option--select">
<label class="shell-type-label">Shell Type</label>
<select class="shell-type"></select>
</div>
<div class="form-option form-option--select">
<label class="shell-size-label">Shell Size</label>
<select class="shell-size"></select>
</div>
<div class="form-option form-option--select">
<label class="quality-ui-label">Quality</label>
<select class="quality-ui"></select>
</div>
<div class="form-option form-option--select">
<label class="sky-lighting-label">Sky Lighting</label>
<select class="sky-lighting"></select>
</div>
<div class="form-option form-option--select">
<label class="scaleFactor-label">Scale</label>
<select class="scaleFactor"></select>
</div>
<div class="form-option form-option--checkbox">
<label class="auto-launch-label">Auto Fire</label>
<input class="auto-launch" type="checkbox" />
</div>
<div class="form-option form-option--checkbox form-option--finale-mode">
<label class="finale-mode-label">Finale Mode</label>
<input class="finale-mode" type="checkbox" />
</div>
<div class="form-option form-option--checkbox">
<label class="hide-controls-label">Hide Controls</label>
<input class="hide-controls" type="checkbox" />
</div>
<div class="form-option form-option--checkbox form-option--fullscreen">
<label class="fullscreen-label">Fullscreen</label>
<input class="fullscreen" type="checkbox" />
</div>
<div class="form-option form-option--checkbox">
<label class="long-exposure-label">Open Shutter</label>
<input class="long-exposure" type="checkbox" />
</div>
</form>
<div class="credits">
Passionately built by <a href="https://cmiller.tech/" target="_blank">Caleb Miller</a>.
</div>
</div>
</div>
</div>
<div class="help-modal">
<div class="help-modal__overlay"></div>
<div class="help-modal__dialog">
<div class="help-modal__header"></div>
<div class="help-modal__body"></div>
<button type="button" class="help-modal__close-btn">Close</button>
</div>
</div>
</div>
<!-- partial -->
<script src='https://s3-us-west-2.amazonaws.com/s.cdpn.io/329180/fscreen%401.0.1.js'></script>
<script src='https://s3-us-west-2.amazonaws.com/s.cdpn.io/329180/Stage%400.1.4.js'></script>
<script src='https://s3-us-west-2.amazonaws.com/s.cdpn.io/329180/MyMath.js'></script>
<script src="./src/script.js"></script>
</body>
</html>
全部代码：带声音的烟花模拟绽放特效插件
