css+js实现圆圈圆环琴弦波动弹奏声音动画效果代码-html代码-BFW代码库

代码语言：html

所属分类：动画

代码描述：css+js实现圆圈圆环琴弦波动弹奏声音动画效果代码，点击任意地方波动琴弦。

下面为部分代码预览，完整代码请点击下载或在bfwstudio webide中打开

<!DOCTYPE html>
<html lang="en" >

<head>
  <meta charset="UTF-8">
  

<link href="https://fonts.googleapis.com/css2?family=Noto+Sans:ital,wght@0,400;0,500;0,700;0,900;1,400;1,500;1,700;1,900&display=swap" rel="stylesheet">
  
  
  
<style>
html, body {
  height: 100vh;
  background-color: black;
  overflow: hidden;
  font-family: "Noto Sans", sans-serif;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

canvas {
  height: 100vh;
  width: 100vw;
  position: relative;
  z-index: 9;
}

#logo {
  position: fixed;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  z-index: 4;
  opacity: 0.08;
  white-space: nowrap;
  pointer-events: none;
}

#logo > img {
  height: 3.2vmin;
}

#background-image,
#background-filter {
  height: 100%;
  width: 100%;
  position: fixed;
  top: 0px;
  left: 0px;
}
  
#background-image {
  z-index: 1;
  background-image: url("//repo.bfw.wiki/bfwrepo/image/6462b7138ecf4.png");
  background-size: cover;
  background-position: center;
  opacity: 0.6;
  filter: blur(4px) grayscale(30%);
}

#background-filter {
  z-index: 2;
  background: radial-gradient(rgb(0 0 0 / 60%) 50%, transparent);
}

#control-bar-wrapper {
  width: 100%;
  display: flex;
  justify-content: center;
  position: fixed;
  top: 0px;
  left: 0px;
  z-index: 10;
  padding: 0.5rem;
}

.toggle {
  background-color: rgb(255 255 255 / 10%);
  backdrop-filter: blur(5px);
  padding: 0.5rem;
  border-radius: 0.25rem;
  height: 2rem;
  border: none;
  outline: none;
  cursor: pointer;
}

.toggle:is(:hover, :focus-visible) {
  background-color: rgb(255 255 255 / 15%);
}

.toggle > i {
  color: white;
  display: none;
  height: 1rem;
  width: 1rem;
  font-size: 0.6rem;
  line-height: 1rem;
  text-align: center;
}

.toggle[data-toggled="true"] > i.on {
  display: block;
}

.toggle[data-toggled="false"] > i.off {
  display: block;
}

#sound-message {
  position: fixed;
  top: 36%;
  left: 50%;
  translate: -50% -50%;
  z-index: 3;
  padding: 0.75rem;
  background-color: rgb(255 255 255 / 5%);
  border-radius: 0.4rem;
  transition: opacity 1000ms;
  pointer-events: none;
}

body:has(#sound-toggle[data-toggled="true"]) #sound-message {
  opacity: 0;
}

#sound-message > p {
  color: white;
  font-size: 0.9rem;
  white-space: nowrap;
}
</style>


  
  
</head>

<body >
  <div id="control-bar-wrapper">
  <div id="control-bar">
    <button id="sound-toggle" class="toggle" type="button" data-toggled="false" onClick="handleSoundToggle()" title="Toggle Pulse">
      <i class="fa-solid fa-music-slash off"></i>
      <i class="fa-solid fa-music on"></i>
    </button>
  </div>
</div>

<div id="background-image"></div>

<div id="background-filter"></div>

<div id="logo">
  <img src="//repo.bfw.wiki/bfwrepo/icon/60b2c443baaca.png" alt="" />
</div>

<div id="sound-message">
  <p>Click anywhere to toggle sound</p>
</div>

<canvas id="paper"></canvas>

      <script>

const paper = document.getElementById("paper"),
pen = paper.getContext("2d");

const get = selector => document.querySelector(selector);

const toggles = {
  sound: get("#sound-toggle") };


const colors = Array(21).fill("#A6C48A");

const settings = {
  startTime: new Date().getTime(), // This can be in the future
  duration: 900, // Total time for all dots to realign at the starting point
  maxCycles: Math.max(colors.length, 100), // Must be above colors.length or else...
  soundEnabled: false, // User still must interact with screen first
  pulseEnabled: true, // Pulse will only show if sound is enabled as well
  instrument: "vibraphone" // "default" | "wave" | "vibraphone"
};

const getFileName = index => {
  if (settings.instrument === "default") return `key-${index}`;

  return `${settings.instrument}-key-${index}`;
};

const getUrl = index => `//repo.bfw.wiki/bfwrepo/sound/tone/${getFileName(index)}.wav`;

const handleSoundToggle = (enabled = !settings.soundEnabled) => {
  settings.soundEnabled = enabled;
  toggles.sound.dataset.toggled = enabled;
};

document.onvisibilitychange =.........完整代码请登录后点击上方下载按钮下载查看