canvas实现星星下落动画效果代码

代码语言:html

所属分类:动画

代码描述:canvas实现星星下落动画效果代码

代码标签: canvas 星星 下落 动画

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>
html, body {
  background: #323232;
  margin: 0px;
  padding: 0px;
}

canvas {
  display: block;
}
</style>


  
  
</head>

<body translate="no">
  <canvas id="canvas" width="800" height="600"></canvas>
  
      <script >
let canvas = document.querySelector('#canvas'),
ctx = canvas.getContext('2d'),
w = 800,
h = 600;

const handleResize = () => {
  w = canvas.width = window.innerWidth;
  h = canvas.height = window.innerHeight;
};
window.onresize = () => handleResize();
handleResize();

let starConfigs = [];

const mapToRange = (number, inMin, inMax, outMin, outMax) => {return (number - inMin) * (outMax - outMin) / (inMax - inMin) .........完整代码请登录后点击上方下载按钮下载查看

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