一个炫酷的鼠标跟随、环绕特效，网页黑色背景

发布时间：2018-08-19 06:07:26 所属栏目：交互来源：站长网

导读：一个用 Java Script写的挺漂亮的鼠标跟随、环绕鼠标的圆形效果，其实严格来讲不是标准的鼠标跟随，过了年回来写的第一个效果，有点烟花的味道，也算是过了年有感而发吧，奉送给JS的各位达人们。演示： htmlheadtitlefollow mouse/titlestyle type=text/cs

　　一个用JavaScript写的挺漂亮的鼠标跟随、环绕鼠标的圆形效果，其实严格来讲不是标准的鼠标跟随，过了年回来写的第一个效果，有点烟花的味道，也算是过了年有感而发吧，奉送给JS的各位达人们。

　　演示：

<html> <head> <title>follow mouse</title> <style type="text/css"> html { overflow: hidden; } body { position: absolute; height: 100%; width: 100%; margin:0; padding:0; } #screen { background:#000; position: absolute; width: 100%; height: 100%; } #screen span { background: #fff; font-size: 0; overflow: hidden; width: 2px; height: 2px; } </style> <script type="text/javascript"> var Follow = function () { var $ = function (i) {return document.getElementById(i)}, addEvent = function (o, e, f) {o.addEventListener ? o.addEventListener(e, f, false) : o.attachEvent('on'+e, function(){f.call(o)})}, OBJ = [], sp, rs, N = 0, m; var init = function (id, config) { this.config = config || {}; this.obj = $(id); sp = this.config.speed || 4; rs = this.config.animR || 1; m = {x: $(id).offsetWidth * .5, y: $(id).offsetHeight * .5}; this.setXY(); this.start(); } init.prototype = { setXY : function () { var _this = this; addEvent(this.obj, 'mousemove', function (e) { e = e || window.event; m.x = e.clientX; m.y = e.clientY; }) }, start : function () { var k = 180 / Math.PI, OO, o, _this = this, fn = this.config.fn; OBJ[N++] = OO = new CObj(null, 0, 0); for(var i=0;i<360;i+=20){ var O = OO; for(var j=10; j<35; j+=1){ var x = fn(i, j).x, y = fn(i, j).y; OBJ[N++] = o = new CObj(O , x, y); O = o; } } setInterval(function() { for (var i = 0; i < N; i++) OBJ[i].run(); }, 16); } } // 源码来自：烈火下载 http://www.veryhuo.com/down var CObj = function (p, cx, cy) { var obj = document.createElement("span"); this.css = obj.style; this.css.position = "absolute"; this.css.left = "-1000px"; this.css.zIndex = 1000 - N; document.getElementById("screen").appendChild(obj); this.ddx = 0; this.ddy = 0; this.PX = 0; this.PY = 0; this.x = 0; this.y = 0; this.x0 = 0; this.y0 = 0; this.cx = cx; this.cy = cy; this.parent = p; } CObj.prototype.run = function () { if (!this.parent) { this.x0 = m.x; this.y0 = m.y; } else { this.x0 = this.parent.x; this.y0 = this.parent.y; } this.x = this.PX += (this.ddx += ((this.x0 - this.PX - this.ddx) + this.cx) / rs) / sp; this.y = this.PY += (this.ddy += ((this.y0 - this.PY - this.ddy) + this.cy) / rs) / sp; this.css.left = Math.round(this.x) + 'px'; this.css.top = Math.round(this.y) + 'px'; } return init; }(); </script></head> <body> <div id="screen"></div> <script type="text/javascript"> new Follow('screen', {speed: 4, animR : 2, fn : function (i, j) { return { x : j/4*Math.cos(i), y : j/4*Math.sin(i) } }}) </script></body> </html><br /><center>如不能显示效果，请按Ctrl+F5刷新本页，更多网页代码：<a href='http://www.veryhuo.com/' target='_blank'>http://www.veryhuo.com/</a></center>
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