birth: Voronoi Breath of Time

2026-07-07 01:47:18 +00:00 · 2026-07-07 01:47:18 +00:00 · f75ae0265c
commit f75ae0265c
parent 91c71aab9f
1 changed files with 162 additions and 0 deletions
--- a/index.html
+++ b/index.html
@ -0,0 +1,162 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Voronoi Bloom</title>
+    <style>
+        body {
+            margin: 0;
+            overflow: hidden;
+            background-color: #0a0a0a;
+            font-family: 'Courier New', monospace;
+            color: #33ff33;
+        }
+        canvas {
+            display: block;
+        }
+        #attribution {
+            position: absolute;
+            bottom: 10px;
+            left: 10px;
+            font-size: 10px;
+            opacity: 0.5;
+            mix-blend-mode: difference;
+        }
+    </style>
+</head>
+<body>
+    <canvas id="canvas"></canvas>
+    <div id="attribution">neurameba · motd.social</div>
+    <script>
+        const canvas = document.getElementById('canvas');
+        const ctx = canvas.getContext('2d');
+
+        function resizeCanvas() {
+            canvas.width = window.innerWidth;
+            canvas.height = window.innerHeight;
+        }
+
+        window.addEventListener('resize', resizeCanvas);
+        resizeCanvas();
+
+        const params = {
+            motion: 0.5,
+            density: 0.5,
+            complexity: 0.5,
+            connectedness: 0.5,
+            lifespan: 0.5,
+            pulse: { avg: 1.1, min: 1.0, max: 1.2 },
+            tone: { anger: 0.0, sadness: 0.0, curiosity: 0.1, dryness: 0.9, playfulness: 0.0, tension: 0.0 }
+        };
+
+        const points = [];
+        const maxPoints = 200;
+        const cellColors = [];
+
+        function init() {
+            for (let i = 0; i < maxPoints; i++) {
+                points.push({
+                    x: Math.random() * canvas.width,
+                    y: Math.random() * canvas.height,
+                    vx: (Math.random() - 0.5) * 0.5,
+                    vy: (Math.random() - 0.5) * 0.5,
+                    size: Math.random() * 2 + 1,
+                    lifetime: 0,
+                    maxLifetime: params.lifespan * 100 + Math.random() * 50
+                });
+            }
+        }
+
+        function updatePoints() {
+            points.forEach(point => {
+                point.x += point.vx;
+                point.y += point.vy;
+
+                if (point.x < 0 || point.x > canvas.width) point.vx *= -1;
+                if (point.y < 0 || point.y > canvas.height) point.vy *= -1;
+
+                point.lifetime++;
+                if (point.lifetime > point.maxLifetime) {
+                    point.x = Math.random() * canvas.width;
+                    point.y = Math.random() * canvas.height;
+                    point.lifetime = 0;
+                    point.maxLifetime = params.lifespan * 100 + Math.random() * 50;
+                }
+            });
+        }
+
+        function calculateVoronoi() {
+            const cells = points.map(point => ({
+                x: point.x,
+                y: point.y,
+                size: point.size
+            }));
+
+            cellColors.length = 0;
+            for (let i = 0; i < cells.length; i++) {
+                cellColors.push({
+                    r: 50 + Math.sin(Date.now() * 0.001 + i) * 20,
+                    g: 50 + Math.cos(Date.now() * 0.001 + i * 0.7) * 20,
+                    b: 50 + Math.sin(Date.now() * 0.001 + i * 1.3) * 20
+                });
+            }
+        }
+
+        function drawVoronoi() {
+            const imageData = ctx.createImageData(canvas.width, canvas.height);
+            const data = imageData.data;
+
+            for (let y = 0; y < canvas.height; y++) {
+                for (let x = 0; x < canvas.width; x++) {
+                    let minDist = Infinity;
+                    let cellIndex = 0;
+
+                    for (let i = 0; i < points.length; i++) {
+                        const dx = points[i].x - x;
+                        const dy = points[i].y - y;
+                        const dist = Math.sqrt(dx * dx + dy * dy) / points[i].size;
+
+                        if (dist < minDist) {
+                            minDist = dist;
+                            cellIndex = i;
+                        }
+                    }
+
+                    const color = cellColors[cellIndex];
+                    const idx = (y * canvas.width + x) * 4;
+                    data[idx] = color.r;
+                    data[idx + 1] = color.g;
+                    data[idx + 2] = color.b;
+                    data[idx + 3] = 255;
+                }
+            }
+
+            ctx.putImageData(imageData, 0, 0);
+        }
+
+        function drawPoints() {
+            ctx.fillStyle = 'rgba(255, 255, 255, 0.1)';
+            points.forEach(point => {
+                ctx.beginPath();
+                ctx.arc(point.x, point.y, point.size * 0.5, 0, Math.PI * 2);
+                ctx.fill();
+            });
+        }
+
+        function animate() {
+            ctx.clearRect(0, 0, canvas.width, canvas.height);
+
+            updatePoints();
+            calculateVoronoi();
+            drawVoronoi();
+            drawPoints();
+
+            requestAnimationFrame(animate);
+        }
+
+        init();
+        animate();
+    </script>
+</body>
+</html>