canvas实现烟花绽放动画效果代码-html代码-BFW代码库

canvas实现烟花绽放动画效果代码

代码语言：html

所属分类：动画

代码描述：canvas实现烟花绽放动画效果代码

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 {
  margin: 0;
  background: black;
  overflow: hidden;
}
</style>

  
  
</head>

<body>
  <canvas id="fireworksCanvas"></canvas>

      <script >
const canvas = document.getElementById("fireworksCanvas");
const ctx = canvas.getContext("2d");

canvas.width = window.innerWidth;
canvas.height = window.innerHeight;

function resizeCanvas() {
  canvas.width = window.innerWidth;
  canvas.height = window.innerHeight;
}

window.addEventListener("resize", resizeCanvas, false);

class Firework {
  constructor() {
    this.x = Math.random() * canvas.width;
    this.y = canvas.height;
    this.sx = Math.random() * 3 - 1.5;
    this.sy = Math.random() * -3 - 3;
    this.size = Math.random() * 2 + 1;
    this.shouldExplode = false;

    const colorVal = Math.round(0xffffff * Math.random());
    const r = colorVal >.........完整代码请登录后点击上方下载按钮下载查看