canvas气泡粒子发射散开动画效果代码-html代码-BFW代码库

canvas气泡粒子发射散开动画效果代码

代码语言：html

所属分类：粒子

代码描述：canvas气泡粒子发射散开动画效果代码适合浏览器端大文件上传。

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;
  overflow: hidden;
}
</style>
</head>
<body>

  <script >

var Bubbles = (function () {
    function Bubbles() {
        this.canvas = document.createElement('canvas');
        this.ctx = this.canvas.getContext('2d');
        this.particles = [];
      	this.counter = 0;
    } 
    Bubbles.prototype.init = function () {
        this.createElement();
        this.loop();
    };
    Bubbles.prototype.createElement = function () {
        var scale = 1;
        this.canvas.width = window.innerWidth;
        this.canvas.height = window.innerHeight;
        this.canvas.style.background = 'rgb(56, 115, 152)';
        this.canvas.style.width = '100%';
        this.ctx.transform(scale, 0, 0, -scale, this.canvas.width / 2, this.canvas.height / 2);
        document.body.appendChild(this.canvas);
      	for(var i = 0; i < 400; i++) {
          	this.createParticle();
        }
    };
    Bubbles.prototype.createParticle = function () {
        this.particles.push({
            color: Math.random() > 0.5 ? "rgba(255, 255, 255, 0.9)" : "rgba(255, 255, 255, 0.4)",
            radius: Math.random() * 16,
            x: (Math.random() - 0.5) * 25,
            y: - this.canvas.height / 2,
            xVel: (Math..........完整代码请登录后点击上方下载按钮下载查看