<link href="//maxcdn.bootstrapcdn.com/bootstrap/3.3.0/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css">
<script src="//maxcdn.bootstrapcdn.com/bootstrap/3.3.0/js/bootstrap.min.js"></script>
<script src="//cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<!------ Include the above in your HEAD tag ---------->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
<div class="cursor">
<div class="cursor__inner cursor__inner--circle"></div>
<div class="cursor__inner cursor__inner--dot"></div>
</div>
.cursor__inner {
z-index: 9999;
pointer-events: none;
position: absolute;
top: 0;
left: 0;
mix-blend-mode: difference;
border-radius: 50%;
}
.cursor__inner--dot {
width: 6px;
height: 6px;
background: #000;
}
.cursor__inner--circle {
width: 20px;
height: 20px;
border: 1px solid #000;
}
{
const lerp = (a, b, n) => (1 - n) * a + n * b;
const getMousePos = (e) => {
let posx = 0;
let posy = 0;
if (!e) e = window.event;
if (e.pageX || e.pageY) {
posx = e.pageX;
posy = e.pageY;
} else if (e.clientX || e.clientY) {
posx = e.clientX + body.scrollLeft + document.documentElement.scrollLeft;
posy = e.clientY + body.scrollTop + document.documentElement.scrollTop;
}
return {
x: posx,
y: posy
}
}
// Custom mouse cursor.
class CursorFx {
constructor(el) {
this.DOM = {
el: el
};
this.DOM.dot = this.DOM.el.querySelector('.cursor__inner--dot');
this.DOM.circle = this.DOM.el.querySelector('.cursor__inner--circle');
this.bounds = {
dot: this.DOM.dot.getBoundingClientRect(),
circle: this.DOM.circle.getBoundingClientRect()
};
this.scale = 1;
this.opacity = 1;
this.mousePos = {
x: 0,
y: 0
};
this.lastMousePos = {
dot: {
x: 0,
y: 0
},
circle: {
x: 0,
y: 0
}
};
this.lastScale = 1;
this.lastOpacity = 1;
this.initEvents();
requestAnimationFrame(() => this.render());
}
initEvents() {
window.addEventListener('mousemove', ev => this.mousePos = getMousePos(ev));
}
render() {
this.lastMousePos.dot.x = lerp(this.lastMousePos.dot.x, this.mousePos.x - this.bounds.dot.width / 2, 1);
this.lastMousePos.dot.y = lerp(this.lastMousePos.dot.y, this.mousePos.y - this.bounds.dot.height / 2, 1);
this.lastMousePos.circle.x = lerp(this.lastMousePos.circle.x, this.mousePos.x - this.bounds.circle.width / 2, 0.15);
this.lastMousePos.circle.y = lerp(this.lastMousePos.circle.y, this.mousePos.y - this.bounds.circle.height / 2, 0.15);
this.lastScale = lerp(this.lastScale, this.scale, 0.15);
this.lastOpacity = lerp(this.lastOpacity, this.opacity, 0.1);
this.DOM.dot.style.transform = `translateX(${(this.lastMousePos.dot.x)}px) translateY(${this.lastMousePos.dot.y}px)`;
this.DOM.circle.style.transform = `translateX(${(this.lastMousePos.circle.x)}px) translateY(${this.lastMousePos.circle.y}px) scale(${this.lastScale})`;
this.DOM.circle.style.opacity = this.lastOpacity
requestAnimationFrame(() => this.render());
}
enter() {
cursor.scale = 2.7;
}
leave() {
cursor.scale = 1;
}
click() {
this.lastScale = 1;
this.lastOpacity = 0;
}
}
const cursor = new CursorFx(document.querySelector('.cursor'));
}
