JS实现鼠标移动拖尾

时间：2021-05-26

本文实例为大家分享了JS实现鼠标移动拖尾的具体代码，供大家参考，具体内容如下

JS 代码

function getMousePos(event) { var e = event || window.event; var mouseInfo = { mouseX : e.clientX, mouseY : e.clientY } return mouseInfo;} function getMouseArt() { this.artStyle = { position: "fixed", top: 0, left: 0, width: "50px", height: "50px", "font-size": 0, "color": 0, "text-transform": 0 }; this.init = function(obj) { var character = ["你", "真", "的", "爱", "我", "吗", "喜", "欢", "不", "对", "起", "彩", "色", "世", "界", "灰", "?"]; var font_trans = ["uppercase", "lowercase"]; this.Alpha = 1; this.element = document.createElement('div'); var text = document.createTextNode(character[Math.floor(Math.random() * character.length)]); this.element.appendChild(text); this.addStyle(this.element, this.artStyle); var offsetV = Math.floor(Math.random() * 60 - 30); // -30 ~ 30 this.element.style.left = obj.mouseX + offsetV +"px"; // x this.element.style.top = obj.mouseY + offsetV +"px"; // y this.element.style.fontSize = Math.floor(Math.random() * 20 + 10) + "px"; this.element.style.color = "hsla("+ Math.floor(Math.random() * 255) + ",100%,50%," + this.Alpha + ")"; this.element.style.textTransform = font_trans[Math.floor(Math.random() * 2)]; document.body.appendChild(this.element); } this.addStyle = function(ele, genuine) { for (var k in genuine) { ele.style[k] = genuine[k]; } } this.delElement = function() { document.body.removeChild(this.element); } this.reduceColor = function(win) { if (this.Alpha <= 1 && this.Alpha > 0) { this.Alpha = this.Alpha - 0.1; this.element.style.color = "hsla("+ Math.floor(Math.random() * 255) + ",100%,50%," + this.Alpha + ")"; console.log(this.Alpha); } else { clearInterval(win); this.delElement(); } }} document.onmousemove = function(event) { var obj = getMousePos(event); var art = new getMouseArt(); art.init(obj); var win = setInterval(function() { art.reduceColor(win); }, 30);}

HTML 代码

<!DOCTYPE html><html lang="en"><head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Document</title> <style> body { background: black; } </style></head><body> <script src="mouse.js" type="text/javascript"></script></body></html>

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