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script.js
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script.js
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const canvas = document.getElementById('canvas1')
const ctx = canvas.getContext('2d')
canvas.width = window.innerWidth
canvas.height = window.innerHeight
const particlesArray = []
let hue = 0
window.addEventListener('resize', function () {
canvas.width = window.innerWidth
canvas.height = window.innerHeight
})
const mouse = {
x: undefined,
y: undefined
}
canvas.addEventListener('click', function (event) {
mouse.x = event.x;
mouse.y = event.y;
for (let i = 0; i < 10; i++) {
particlesArray.push(new Particle());
}
})
canvas.addEventListener('mousemove', function (event) {
mouse.x = event.x;
mouse.y = event.y;
for (let i = 0; i < 5; i++) {
particlesArray.push(new Particle());
}
})
class Particle {
constructor() {
this.x = mouse.x;
this.y = mouse.y;
this.size = Math.random() * 15 + 1;
this.speedX = Math.random() * 3 - 1.5;
this.speedY = Math.random() * 3 - 1.5;
this.color = 'hsl(' + hue + ', 100%, 50%)';
}
update() {
this.x += this.speedX;
this.y += this.speedY;
if (this.size > 0.2) this.size -= 0.1;
}
draw() {
ctx.fillStyle = this.color
ctx.beginPath()
ctx.arc(this.x, this.y, this.size, 0, Math.PI * 2)
ctx.fill()
}
}
function handleParticles() {
for (let i = 0; i < particlesArray.length; i++) {
particlesArray[i].update();
particlesArray[i].draw();
for (let j = i; j < particlesArray.length; j++) {
const dx = particlesArray[i].x - particlesArray[j].x;
const dy = particlesArray[i].y - particlesArray[j].y;
const distance = Math.sqrt(dx * dx + dy * dy);
if (distance < 100) {
ctx.beginPath();
ctx.strokeStyle = particlesArray[i].color;
ctx.lineWidth = particlesArray[i].size / 50;
ctx.moveTo(particlesArray[i].x, particlesArray[i].y);
ctx.lineTo(particlesArray[j].x, particlesArray[j].y);
ctx.stroke();
ctx.closePath();
}
}
if (particlesArray[i].size <= 0.3) {
particlesArray.splice(i, 1);
i--;
}
}
}
function animate() {
ctx.clearRect(0, 0, canvas.width, canvas.height)
// ctx.fillStyle = 'rgba(0,0,0,0.02)'
// ctx.fillRect(0, 0, canvas.width, canvas.height)
handleParticles()
hue += 2
requestAnimationFrame(animate)
}
animate()