birth: Voronoi Pulse Fields

2026-09-09 10:21:22 +00:00 · 2026-09-09 10:21:22 +00:00 · 4a3368fb07
commit 4a3368fb07
parent 5da93680bc
1 changed files with 181 additions and 0 deletions
--- a/index.html
+++ b/index.html
@ -0,0 +1,181 @@
+<!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: #0a0a1a;
+            font-family: 'Courier New', monospace;
+        }
+        canvas {
+            display: block;
+        }
+        #attribution {
+            position: fixed;
+            bottom: 10px;
+            right: 10px;
+            color: rgba(255, 255, 255, 0.3);
+            font-size: 10px;
+            pointer-events: none;
+        }
+    </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();
+
+        // Parameters
+        const params = {
+            motion: 0.5,
+            density: 0.5,
+            complexity: 0.5,
+            connectedness: 0.5,
+            lifespan: 0.5,
+            pulse: 1.08,
+            tone: {
+                anger: 0.00,
+                sadness: 0.00,
+                curiosity: 0.10,
+                dryness: 0.90,
+                playfulness: 0.00,
+                tension: 0.00
+            }
+        };
+
+        // Voronoi setup
+        const sites = [];
+        const colors = [];
+        const points = [];
+        const maxPoints = Math.floor(200 + params.density * 800);
+        const voronoi = { edges: [] };
+
+        // Initialize
+        function init() {
+            sites.length = 0;
+            points.length = 0;
+            voronoi.edges.length = 0;
+
+            // Generate sites
+            for (let i = 0; i < maxPoints; i++) {
+                const x = Math.random() * canvas.width;
+                const y = Math.random() * canvas.height;
+                sites.push({ x, y });
+                points.push({ x, y, vx: 0, vy: 0, lifetime: 0 });
+
+                // Colors: dryness = monochrome with slight teal
+                const base = 50 + Math.random() * 100;
+                const tealMix = Math.random() * 20;
+                colors.push(`rgb(${base + tealMix}, ${base + tealMix}, ${base + 100 + tealMix})`);
+            }
+        }
+
+        init();
+
+        // Physics
+        function updatePoints() {
+            const speed = 0.5 + params.motion * 2;
+            const connectedFactor = params.connectedness * 0.1;
+
+            for (let i = 0; i < points.length; i++) {
+                const p = points[i];
+                const targetX = sites[i].x;
+                const targetY = sites[i].y;
+
+                p.vx += (targetX - p.x) * 0.01 * speed;
+                p.vy += (targetY - p.y) * 0.01 * speed;
+
+                p.vx *= 0.92;
+                p.vy *= 0.92;
+
+                p.x += p.vx;
+                p.y += p.vy;
+
+                // Wrap around edges
+                if (p.x < 0) p.x = canvas.width;
+                if (p.x > canvas.width) p.x = 0;
+                if (p.y < 0) p.y = canvas.height;
+                if (p.y > canvas.height) p.y = 0;
+
+                p.lifetime += 0.001 + params.lifespan * 0.005;
+            }
+        }
+
+        // Voronoi calculation (simplified)
+        function calculateVoronoi() {
+            voronoi.edges.length = 0;
+
+            for (let i = 0; i < sites.length; i++) {
+                for (let j = i + 1; j < sites.length; j++) {
+                    const a = sites[i];
+                    const b = sites[j];
+                    const dist = Math.sqrt((a.x - b.x) ** 2 + (a.y - b.y) ** 2);
+
+                    if (dist < 50 + params.complexity * 100) {
+                        voronoi.edges.push({
+                            p1: a,
+                            p2: b,
+                            dist: dist
+                        });
+                    }
+                }
+            }
+        }
+
+        // Drawing
+        function draw() {
+            ctx.fillStyle = 'rgba(0, 0, 0, 0.05)';
+            ctx.fillRect(0, 0, canvas.width, canvas.height);
+
+            const lineWidth = 0.5 + params.complexity * 1.5;
+            const opacity = 0.3 + params.connectedness * 0.4;
+
+            // Draw voronoi edges
+            for (const edge of voronoi.edges) {
+                ctx.strokeStyle = `rgba(255, 255, 255, ${opacity * 0.7})`;
+                ctx.lineWidth = lineWidth * (1 - edge.dist / 100);
+                ctx.beginPath();
+                ctx.moveTo(edge.p1.x, edge.p1.y);
+                ctx.lineTo(edge.p2.x, edge.p2.y);
+                ctx.stroke();
+            }
+
+            // Draw points with trails
+            for (let i = 0; i < points.length; i++) {
+                const p = points[i];
+                const size = 1 + Math.sin(p.lifetime * 5) * params.motion * 1.5;
+                const alpha = 0.5 + Math.sin(p.lifetime * 3) * 0.3;
+
+                ctx.fillStyle = `rgba(${colors[i]}, ${alpha})`;
+                ctx.beginPath();
+                ctx.arc(p.x, p.y, size, 0, Math.PI * 2);
+                ctx.fill();
+            }
+        }
+
+        // Animation loop
+        function animate() {
+            updatePoints();
+            calculateVoronoi();
+            draw();
+            requestAnimationFrame(animate);
+        }
+
+        animate();
+    </script>
+</body>
+</html>