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
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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