js实现canvas银河系行星旋转轨迹动画效果代码-html代码-BFW代码库

js实现canvas银河系行星旋转轨迹动画效果代码

代码语言：html

所属分类：动画

代码描述：js实现canvas银河系行星旋转轨迹动画效果代码

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 >
<head>
<meta charset="UTF-8">
<title></title>
  
<style>
body {

  overflow: hidden;
}
canvas {
  
  position: absolute;
  top: 0;
  left: 0;
  background-color: black;
}

a {
  
  width: 200px;
  height: 200px;
  position: absolute;
  left: calc( 100% - 200px );
  top: calc( 100% - 130px );
}
img {
  width: 200px;
}
</style>

</head>
<body>

<canvas id="c"></canvas>
<script type="text/javascript" src="//repo.bfw.wiki/bfwrepo/js/dat.gui-min.js"></script>
<script>
    var w = c.width = window.innerWidth,
    h = c.height = window.innerHeight,
    ctx = c.getContext( '2d' ),
    
    opts = {
      
      lineCount: 100,
      starCount: 30,
      
      radVel: .01,
      lineBaseVel: .1,
      lineAddedVel: .1,
      lineBaseLife: .4,
      lineAddedLife: .01,
      
      starBaseLife: 10,
      starAddedLife: 10,
      
      ellipseTilt: -.3,
      ellipseBaseRadiu.........完整代码请登录后点击上方下载按钮下载查看