canvas绘制彩色旋涡效果

代码语言:html

所属分类:布局界面

代码描述:canvas绘制彩色旋涡效果

代码标签: 旋涡 效果

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 {
  margin: 0;
}

canvas {
  display: block;
  cursor: pointer;
}
</style>

</head>
<body translate="no">
<canvas id="canvas"></canvas>

<script>
/*
  Johan Karlsson, 2020
  https://twitter.com/DonKarlssonSan
  MIT License, see Details View
*/
let canvas;
let ctx;
let w, h;

function setup() {
  canvas = document.querySelector("#canvas");
  ctx = canvas.getContext("2d");
  reset();
  window.addEventListener("resize", () => {
    reset();
    draw();
  });
  canvas.addEventListener("click", draw);
}

function reset() {
  w = canvas.width = window.innerWidth;
  h = canvas.height = window.innerHeight;
  ctx.lineWidth = 4;
}

function draw() {
  let hueOffset.........完整代码请登录后点击上方下载按钮下载查看

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