joshstroud.com/random.html at main · superaffectivejosh/joshstroud.com · GitHub

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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>Confetti Explosion</title>
    <style>
        body {
            margin: 0;
            overflow: hidden;
            background: black;
            cursor: pointer;
        }
        canvas {
            display: block;
        }
    </style>
</head>
<body>
    <canvas id="confettiExplosion"></canvas>
    <script>
        const canvas = document.getElementById("confettiExplosion");
        const ctx = canvas.getContext("2d");
        canvas.width = window.innerWidth;
        canvas.height = window.innerHeight;

        const particles = [];
        function createExplosion(x, y) {
            for (let i = 0; i < 100; i++) {
                particles.push({
                    x,
                    y,
                    angle: Math.random() * 2 * Math.PI,
                    speed: Math.random() * 5 + 2,
                    size: Math.random() * 5 + 2,
                    color: `hsl(${Math.random() * 360}, 70%, 50%)`,
                    life: Math.random() * 100 + 50
                });
            }
        }

        function updateParticles() {
            particles.forEach((p, i) => {
                p.x += Math.cos(p.angle) * p.speed;
                p.y += Math.sin(p.angle) * p.speed;
                p.life -= 1;
                if (p.life <= 0) particles.splice(i, 1);
            });
        }

        function drawParticles() {
            particles.forEach(p => {
                ctx.fillStyle = p.color;
                ctx.beginPath();
                ctx.arc(p.x, p.y, p.size, 0, Math.PI * 2);
                ctx.fill();
            });
        }

        function loop() {
            ctx.clearRect(0, 0, canvas.width, canvas.height);
            updateParticles();
            drawParticles();
            requestAnimationFrame(loop);
        }

        canvas.addEventListener("click", e => {
            createExplosion(e.clientX, e.clientY);
        });

        loop();
    </script>
</body>
</html>