js实现按住键盘w指针转动汽车引擎发动机加速音效代码-html代码-BFW代码库

js实现按住键盘w指针转动汽车引擎发动机加速音效代码

代码语言：html

所属分类：多媒体

代码描述：js实现按住键盘w指针转动汽车引擎发动机加速音效代码

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">
  

  
  
<style>
body,html{
  height: 100%;
  width: 100%;
  padding: 0;
  margin: 0;
  background-color: #141417;
  color: white; 
  font-family: monospace;
}
body{
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 20px;
}
.speedometer-wrap{
  display: flex;
  width: 300px;
  height: 50px;
  border: 2px solid #ddd;
  border-radius: 28px; 
  padding: 8px;
  box-sizing: border-box;
  position: relative;
}
.speedometer-wrap > #rpm-canvas{
  position: absolute;
  background-color: #fff1;
  opacity: 0.2; 
  left: -8px;
  top: -120px; 
  border-radius: 10px;
}
.speedometer-wrap > .arrow{
  position: absolute;
  background-color: #fff;
  height: 4px;
  width: 150px;
  left: -8px; 
  top: -20px; 
  transform-origin: 150px center;
}
.speedometer-wrap > div{
  border-radius: 20px;
  background-color: #fff1;
  overflow: hidden; 
  width: 100%;
  height: 100%;
  display: flex;
}
#speedometer{
  height: 100%;
  background-color: #fff;
}
button{
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background-color: #fff1;
  border-radius: 20px;
  width: 200px;
  height: 40px;
  color: #fff;
  font-family: monospace;
  font-size: 20px;
  outline: none;
  border: none;
  cursor: pointer;
}
button:hover{
  background-color: #fff2; 
}
</style>


  
</head>

<body >
  <div class="speedometer-wrap">
  <canvas id="rpm-canvas" width="300" height="100"></canvas>
  <div class="arrow"></div>
  <div>
    <div id="speedometer"></div>
  </div>
</div>
<h2>Press W to accelerate</h2>
<button id="toggle-sound">Unmute sound</button>
  
      <script  >
const AudioContext = window.AudioContext || window.webkitAudioContext;
const audioCtx = new AudioContext();
let audioSrc = null;

let speed = 0;
let enginePitch = 1;
let frames = 0;
let maxSpeed = 100;
let keys = {};

addEventListener("DOMContentLoaded", () => {
  const speedometer = document.getElementById("speedomete.........完整代码请登录后点击上方下载按钮下载查看