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Cops_inspiration.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Cops Inspiration</title>
<style>
* {
margin: 0;
padding: 0;
}
</style>
</head>
<body>
<canvas></canvas>
<button style="position: absolute; z-index: 2; top: 10px; left: 10px; user-select: none;" onclick="clearTheMess()">Clear the mess</button>
<script>
let canvas = document.querySelector("canvas");
let c = canvas.getContext("2d");
canvas.width = window.innerWidth;
canvas.height = window.innerHeight;
c.fillStyle = "#1c1e1e";
c.fillRect(0, 0, canvas.width, canvas.height);
let radii = [3, 2, 1];
let mouse = {
x: undefined,
y: undefined
}
window.addEventListener("mousemove", (event) => {
mouse.x = event.x;
mouse.y = event.y;
})
window.addEventListener("resize", () => {
canvas.width = window.innerWidth;
canvas.height = window.innerHeight;
init();
})
let dotcolor = 'white';
let noOfDots = Math.floor(window.innerWidth / 10);
let farDist = 120;
let speedFactor = 0.6;
let repelRadius = window.innerWidth / 8;
function Circle(x, y, r, dx, dy, quad) {
this.x = x;
this.y = y;
this.r = r;
this.dx = dx;
this.dy = dy;
this.circularPath = false;
this.draw = () => {
c.beginPath();
c.arc(this.x, this.y, this.r, 0, 2 * Math.PI, false);
c.strokeStyle = dotcolor;
c.fillStyle = dotcolor;
c.stroke();
c.fill();
};
this.update = () => {
if (this.x > innerWidth + 2 * r) {
this.x = innerWidth - r;
this.dx *= -1;
}
else if (this.x < -r) {
this.x = r;
this.dx *= -1;
}
if (this.y > innerHeight + 2 * r) {
this.y = innerHeight - r;
this.dy *= -1;
}
else if (this.y < -r) {
this.y = r;
this.dy *= -1;
}
if (quad == 0) {
this.x += speedFactor * this.dx;
this.y += speedFactor * this.dy;
}
else if (quad == 1) {
this.x -= speedFactor * this.dx;
this.y += speedFactor * this.dy;
}
else if (quad == 2) {
this.x += speedFactor * this.dx;
this.y -= speedFactor * this.dy;
}
else {
this.x -= speedFactor * this.dx;
this.y -= speedFactor * this.dy;
}
this.draw();
};
}
let dotArray = [];
for (let i = 0; i < noOfDots; i++) {
let r = radii[i % 3];
let x = (Math.random() * (innerWidth - 2 * r) + r);
let y = (Math.random() * (innerHeight - 2 * r) + r);
let dx = Math.random() * 2;
let dy = Math.random() * 2;
dotArray.push(new Circle(x, y, r, dx, dy, i % 4));
}
function init() {
for (let i = 0; i < noOfDots; i++) {
let r = radii[i % 3];
let x = (Math.random() * (innerWidth - 2 * r) + r);
let y = (Math.random() * (innerHeight - 2 * r) + r);
let dx = Math.random() * 2;
let dy = Math.random() * 2;
dotArray.push(new Circle(x, y, r, dx, dy, i % 4));
}
}
function clearTheMess() {
dotArray = [];
init();
}
function repel(arr, mousex, mousey) {
for (let i = 0; i < arr.length; i++) {
let dist = Math.sqrt((arr[i].x - mousex) * (arr[i].x - mousex) + (arr[i].y - mousey) * (arr[i].y - mousey));
if (dist < repelRadius) {
arr[i].y = mousey + (repelRadius * (arr[i].y - mousey)) / dist;
arr[i].x = mousex + (repelRadius * (arr[i].x - mousex)) / dist;
}
};
}
window.addEventListener("click", (event) => {
let r = radii[Math.floor(Math.random() * 3)]
let dx = Math.random() * 2;
let dy = Math.random() * 2;
dotArray.push(new Circle(event.x, event.y, r, dx, dy, 1 + Math.floor(Math.random() * 4)));
dotArray.push(new Circle(event.x, event.y, r, dx, dy, 1 + Math.floor(Math.random() * 4)));
dotArray.push(new Circle(event.x, event.y, r, dx, dy, 1 + Math.floor(Math.random() * 4)));
})
function join(arr) {
for (let i = 0; i < arr.length; i++) {
for (let j = 0; j < arr.length; j++) {
let dist = Math.sqrt((arr[i].x - arr[j].x) * (arr[i].x - arr[j].x) + (arr[i].y - arr[j].y) * (arr[i].y - arr[j].y))
if (dist <= farDist) {
let num = Math.floor(90 - dist / 2);
let rep = num.toString();
c.strokeStyle = `rgb(${rep},${rep},${rep})`;
c.beginPath();
c.moveTo(arr[i].x, arr[i].y);
c.lineTo(arr[j].x, arr[j].y);
c.stroke();
}
}
}
}
function animate() {
requestAnimationFrame(animate);
c.clearRect(0, 0, innerWidth, innerHeight);
c.fillStyle = "#1c1e1e";
c.fillRect(0, 0, canvas.width, canvas.height);
join(dotArray)
for (let i = 0; i < dotArray.length; i++) {
dotArray[i].update();
}
repel(dotArray, mouse.x, mouse.y);
// c.beginPath();
// c.arc(mouse.x, mouse.y, repelRadius,0,2*Math.PI,false);
// c.strokeStyle = '#505050';
// c.stroke()
}
animate();
</script>
</body>
</html>