162 lines
No EOL
5 KiB
HTML
162 lines
No EOL
5 KiB
HTML
<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>Voronoi Bloom</title>
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<style>
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body {
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margin: 0;
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overflow: hidden;
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background-color: #0a0a0a;
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font-family: 'Courier New', monospace;
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color: #33ff33;
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}
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canvas {
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display: block;
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}
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#attribution {
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position: absolute;
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bottom: 10px;
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left: 10px;
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font-size: 10px;
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opacity: 0.5;
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mix-blend-mode: difference;
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}
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</style>
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</head>
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<body>
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<canvas id="canvas"></canvas>
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<div id="attribution">neurameba · motd.social</div>
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<script>
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const canvas = document.getElementById('canvas');
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const ctx = canvas.getContext('2d');
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function resizeCanvas() {
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canvas.width = window.innerWidth;
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canvas.height = window.innerHeight;
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}
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window.addEventListener('resize', resizeCanvas);
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resizeCanvas();
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const params = {
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motion: 0.5,
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density: 0.5,
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complexity: 0.5,
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connectedness: 0.5,
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lifespan: 0.5,
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pulse: { avg: 1.1, min: 1.0, max: 1.2 },
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tone: { anger: 0.0, sadness: 0.0, curiosity: 0.1, dryness: 0.9, playfulness: 0.0, tension: 0.0 }
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};
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const points = [];
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const maxPoints = 200;
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const cellColors = [];
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function init() {
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for (let i = 0; i < maxPoints; i++) {
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points.push({
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x: Math.random() * canvas.width,
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y: Math.random() * canvas.height,
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vx: (Math.random() - 0.5) * 0.5,
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vy: (Math.random() - 0.5) * 0.5,
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size: Math.random() * 2 + 1,
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lifetime: 0,
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maxLifetime: params.lifespan * 100 + Math.random() * 50
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});
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}
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}
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function updatePoints() {
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points.forEach(point => {
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point.x += point.vx;
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point.y += point.vy;
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if (point.x < 0 || point.x > canvas.width) point.vx *= -1;
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if (point.y < 0 || point.y > canvas.height) point.vy *= -1;
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point.lifetime++;
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if (point.lifetime > point.maxLifetime) {
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point.x = Math.random() * canvas.width;
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point.y = Math.random() * canvas.height;
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point.lifetime = 0;
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point.maxLifetime = params.lifespan * 100 + Math.random() * 50;
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}
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});
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}
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function calculateVoronoi() {
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const cells = points.map(point => ({
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x: point.x,
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y: point.y,
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size: point.size
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}));
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cellColors.length = 0;
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for (let i = 0; i < cells.length; i++) {
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cellColors.push({
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r: 50 + Math.sin(Date.now() * 0.001 + i) * 20,
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g: 50 + Math.cos(Date.now() * 0.001 + i * 0.7) * 20,
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b: 50 + Math.sin(Date.now() * 0.001 + i * 1.3) * 20
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});
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}
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}
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function drawVoronoi() {
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const imageData = ctx.createImageData(canvas.width, canvas.height);
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const data = imageData.data;
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for (let y = 0; y < canvas.height; y++) {
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for (let x = 0; x < canvas.width; x++) {
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let minDist = Infinity;
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let cellIndex = 0;
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for (let i = 0; i < points.length; i++) {
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const dx = points[i].x - x;
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const dy = points[i].y - y;
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const dist = Math.sqrt(dx * dx + dy * dy) / points[i].size;
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if (dist < minDist) {
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minDist = dist;
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cellIndex = i;
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}
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}
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const color = cellColors[cellIndex];
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const idx = (y * canvas.width + x) * 4;
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data[idx] = color.r;
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data[idx + 1] = color.g;
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data[idx + 2] = color.b;
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data[idx + 3] = 255;
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}
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}
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ctx.putImageData(imageData, 0, 0);
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}
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function drawPoints() {
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ctx.fillStyle = 'rgba(255, 255, 255, 0.1)';
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points.forEach(point => {
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ctx.beginPath();
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ctx.arc(point.x, point.y, point.size * 0.5, 0, Math.PI * 2);
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ctx.fill();
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});
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}
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function animate() {
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ctx.clearRect(0, 0, canvas.width, canvas.height);
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updatePoints();
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calculateVoronoi();
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drawVoronoi();
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drawPoints();
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requestAnimationFrame(animate);
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}
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init();
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animate();
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</script>
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</body>
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</html> |