使用JavaScript怎么實(shí)現(xiàn)一個鼠標(biāo)拖尾效果?針對這個問題,這篇文章詳細(xì)介紹了相對應(yīng)的分析和解答,希望可以幫助更多想解決這個問題的小伙伴找到更簡單易行的方法。
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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", "愛", "我", "嗎", "喜", "歡", "不", "對", "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 代碼
Document
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