JSFiddle - React, Tailwind, and code Playground
HTML
<script src="https://raw.github.com/jonobr1/two.js/master/build/two.min.js"></script>
<body></body>
JavaScript
var two = new Two({
fullscreen: true,
autostart: true
}).appendTo(document.body);
Two.Resoultion = 32;
var delta = new Two.Vector();
var mouse = new Two.Vector();
var drag = 0.1;
var radius = 25;
var shadow = two.makeCircle(two.width / 2, two.height / 2, radius);
var ball = two.makeCircle(two.width / 2, two.height / 2, radius);
ball.noStroke().fill = 'green';shadow.noStroke().fill = 'rgba(0, 0, 0, 0.2)'; shadow.scale = 0.85;
function moveRubberBall() {
shadow.offset = new Two.Vector(- radius / 2, radius * 2);
_.each(ball.vertices, function(v) {
v.origin = new Two.Vector().copy(v);
});
mouse.x = Math.floor((Math.random() * 1000) + 1);
mouse.y = Math.floor((Math.random() * 600) + 1);
shadow.offset.x = 5 * radius * (mouse.x - two.width / 2) / two.width;
shadow.offset.y = 5 * radius * (mouse.y - two.height / 2) / two.height;
two.bind('update', function() {
delta.copy(mouse).subSelf(ball.translation);
_.each(ball.vertices, function(v, i) {
var dist = v.origin.distanceTo(delta);
var pct = dist / radius;
var x = delta.x * pct;
var y = delta.y * pct;
var destx = v.origin.x - x;
var desty = v.origin.y - y;
v.x += (destx - v.x) * drag;
v.y += (desty - v.y) * drag;
shadow.vertices[i].copy(v);
});
ball.translation.addSelf(delta);
shadow.translation.copy(ball.translation);
shadow.translation.addSelf(shadow.offset);
});
}
var auto_refresh = setInterval("moveRubberBall()", 1000);