birth: Pulsing Gray Membranes
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index.html
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237
index.html
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<!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>Neurameba Cellular Organism</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: #0a0a0a;
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font-family: 'Courier New', monospace;
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color: #fff;
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display: flex;
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justify-content: center;
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align-items: center;
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height: 100vh;
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}
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#attribution {
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position: fixed;
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bottom: 10px;
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right: 10px;
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font-size: 10px;
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opacity: 0.5;
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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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// System parameters
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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: {
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avg: 1.11,
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min: 1.0,
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max: 1.2
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},
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tone: {
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anger: 0.0,
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sadness: 0.0,
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curiosity: 0.0,
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dryness: 0.9,
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playfulness: 0.0,
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tension: 0.0
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}
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};
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// Cell automaton state
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const grid = [];
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const cellSize = 8;
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const cols = Math.floor(canvas.width / cellSize);
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const rows = Math.floor(canvas.height / cellSize);
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// Initialize grid
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for (let y = 0; y < rows; y++) {
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grid[y] = [];
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for (let x = 0; x < cols; x++) {
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// Base state with some initial randomness
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grid[y][x] = {
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state: Math.random() > 0.5 ? 1 : 0,
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nextState: 0,
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energy: 0,
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lifespan: params.lifespan * 100 + 50,
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pulse: params.pulse.avg
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};
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}
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}
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// Cellular automaton rules (Life-like with variations)
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function updateGrid() {
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const neighborOffsets = [
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[-1,-1], [-1,0], [-1,1],
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[0,-1], [0,1],
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[1,-1], [1,0], [1,1]
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];
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for (let y = 0; y < rows; y++) {
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for (let x = 0; x < cols; x++) {
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const cell = grid[y][x];
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let liveNeighbors = 0;
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// Count live neighbors
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for (const [ox, oy] of neighborOffsets) {
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const nx = x + ox;
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const ny = y + oy;
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if (nx >= 0 && nx < cols && ny >= 0 && ny < rows) {
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if (grid[ny][nx].state > 0.5) {
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liveNeighbors++;
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}
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}
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}
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// Determine next state based on params
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const birth = params.connectedness > 0.7 ? 3 : 2;
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const survive = params.connectedness > 0.7 ? [2,3] : [1,2,3];
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const birthProb = params.complexity * 0.5 + 0.3;
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const deathProb = 1 - params.lifespan * 0.7;
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cell.nextState = cell.state;
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if (cell.state > 0.5) {
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// Survival
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if (survive.includes(liveNeighbors)) {
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cell.nextState = 1;
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cell.energy += params.motion * 0.05;
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} else {
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cell.energy *= deathProb;
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if (Math.random() < deathProb) {
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cell.nextState = 0;
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cell.energy = 0;
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}
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}
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} else {
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// Birth
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if (liveNeighbors >= birth && Math.random() < birthProb) {
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cell.nextState = 1;
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cell.energy = params.density * 0.5 + 0.3;
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}
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}
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// Energy decay
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cell.energy *= 0.98;
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// Pulse variation
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cell.pulse = params.pulse.avg +
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(params.pulse.max - params.pulse.avg) *
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Math.sin(Date.now() * 0.001) * 0.1;
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}
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}
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// Update states
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for (let y = 0; y < rows; y++) {
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for (let x = 0; x < cols; x++) {
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grid[y][x].state = grid[y][x].nextState;
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}
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}
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}
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// Drawing function
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function draw() {
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const time = Date.now() * 0.001;
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const hue = (Math.sin(time * 0.3) * 30 + 180) % 360;
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// Clear with semi-transparent overlay for trails
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ctx.fillStyle = 'rgba(10, 10, 10, 0.05)';
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ctx.fillRect(0, 0, canvas.width, canvas.height);
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let totalEnergy = 0;
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let liveCells = 0;
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for (let y = 0; y < rows; y++) {
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for (let x = 0; x < cols; x++) {
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const cell = grid[y][x];
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// Track statistics
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if (cell.state > 0.5) {
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liveCells++;
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totalEnergy += cell.energy;
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}
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if (cell.state > 0.5) {
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// Cell is alive
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const size = cellSize * (0.5 + cell.energy * 1.5);
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const alpha = 0.7 + cell.energy * 0.3;
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const adjustedHue = hue + (Math.sin(time + x * 0.1 + y * 0.05) * 10);
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ctx.fillStyle = `hsla(${adjustedHue}, 80%, 60%, ${alpha})`;
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ctx.beginPath();
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ctx.arc(
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x * cellSize + cellSize/2,
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y * cellSize + cellSize/2,
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size * cell.pulse,
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0,
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Math.PI * 2
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);
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ctx.fill();
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// Draw subtle connections to neighbors
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if (params.connectedness > 0.3) {
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ctx.strokeStyle = `hsla(${adjustedHue}, 30%, 40%, ${alpha * 0.3})`;
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ctx.lineWidth = 0.5 + cell.energy * 0.2;
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for (let oy = -1; oy <= 1; oy++) {
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for (let ox = -1; ox <= 1; ox++) {
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const nx = x + ox;
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const ny = y + oy;
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if (nx >= 0 && nx < cols && ny >= 0 && ny < rows &&
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grid[ny][nx].state > 0.5) {
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ctx.beginPath();
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ctx.moveTo(
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x * cellSize + cellSize/2,
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y * cellSize + cellSize/2
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);
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ctx.lineTo(
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nx * cellSize + cellSize/2,
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ny * cellSize + cellSize/2
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);
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ctx.stroke();
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}
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}
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}
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}
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}
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}
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}
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// Update grid
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updateGrid();
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}
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function animate() {
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draw();
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requestAnimationFrame(animate);
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}
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animate();
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</script>
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</body>
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</html>
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