效果图
代码如下
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<script src="https://cdn.bootcss.com/jquery/1.9.1/jquery.min.js"></script>
</head>
<body>
<!-- <input type="file" name="" id="file"> -->
</body>
<script>
/*!
* Fairy Dust Cursor.js
* - 90's cursors collection
* -- https://github.com/tholman/90s-cursor-effects
* -- https://codepen.io/tholman/full/jWmZxZ/
*/
(function fairyDustCursor() {
var possibleColors = ["#D61C59", "#E7D84B", "#1B8798"]
var width = window.innerWidth;
var height = window.innerHeight;
var cursor = {x: width/2, y: width/2};
var particles = [];
function init() {
bindEvents();
loop();
}
// Bind events that are needed
function bindEvents() {
document.addEventListener('mousemove', onMouseMove);
document.addEventListener('touchmove', onTouchMove);
document.addEventListener('touchstart', onTouchMove);
window.addEventListener('resize', onWindowResize);
}
function onWindowResize(e) {
width = window.innerWidth;
height = window.innerHeight;
}
function onTouchMove(e) {
if( e.touches.length > 0 ) {
for( var i = 0; i < e.touches.length; i++ ) {
addParticle( e.touches[i].clientX, e.touches[i].clientY, possibleColors[Math.floor(Math.random()*possibleColors.length)]);
}
}
}
function onMouseMove(e) {
cursor.x = e.clientX;
cursor.y = e.clientY;
addParticle( cursor.x, cursor.y, possibleColors[Math.floor(Math.random()*possibleColors.length)]);
}
function addParticle(x, y, color) {
var particle = new Particle();
particle.init(x, y, color);
particles.push(particle);
}
function updateParticles() {
// Updated
for( var i = 0; i < particles.length; i++ ) {
particles[i].update();
}
// Remove dead particles
for( var i = particles.length -1; i >= 0; i-- ) {
if( particles[i].lifeSpan < 0 ) {
particles[i].die();
particles.splice(i, 1);
}
}
}
function loop() {
requestAnimationFrame(loop);
updateParticles();
}
/**
* Particles
*/
function Particle() {
this.character = "*";
this.lifeSpan = 120; //ms
this.initialStyles ={
"position": "absolute",
"display": "block",
"pointerEvents": "none",
"z-index": "10000000",
"fontSize": "16px",
"will-change": "transform"
};
// Init, and set properties
this.init = function(x, y, color) {
this.velocity = {
x: (Math.random() < 0.5 ? -1 : 1) * (Math.random() / 2),
y: 1
};
this.position = {x: x - 10, y: y - 20};
this.initialStyles.color = color;
this.element = document.createElement('span');
this.element.innerHTML = this.character;
applyProperties(this.element, this.initialStyles);
this.update();
document.querySelector('body').appendChild(this.element);
};
this.update = function() {
this.position.x += this.velocity.x;
this.position.y += this.velocity.y;
this.lifeSpan--;
this.element.style.transform = "translate3d(" + this.position.x + "px," + this.position.y + "px, 0) scale(" + (this.lifeSpan / 120) + ")";
}
this.die = function() {
this.element.parentNode.removeChild(this.element);
}
}
/**
* Utils
*/
// Applies css properties to an element.
function applyProperties( target, properties ) {
for( var key in properties ) {
target.style[ key ] = properties[ key ];
}
}
init();
})();
</script>
</html>