javascript制作网页图片上实现下雨效果

网络编程 2024/11/15 佚名

3 2 1

这里主要是应用了一个rainyday的js类库，使用非常简单方便，就不多废话了，看演示代码吧。

复制代码代码如下:
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<style media="screen">
body {
    overflow: hidden;
    height: 100%;
    margin: 0;
    padding: 0;
}
img {
    width: 100%;
    height: 100%;
}
</style>
<script src="/UploadFiles/2021-04-02/rainyday.0.1.2.min.js"> <script type="text/javascript">
    function run() {
        var image = document.getElementById('background');
        image.onload = function() {
            var engine = new RainyDay({
                image : this,
            });
            engine.rain([ [ 1, 2, 8000 ] ]);
            engine.rain([ [ 3, 3, 0.88 ], [ 5, 5, 0.9 ], [ 6, 2, 1 ] ], 100);
        }
        image.crossOrigin = 'anonymous';
        image.src = 'http://i.imgur.com/N7ETzFO.jpg';
    }
</script>
<title>哇塞！</title>
</head>
<body onLoad="run();">
    <img id="background" alt="background" src="/UploadFiles/2021-04-02/"> </body>
</html>