206 lines
No EOL
6.5 KiB
HTML
206 lines
No EOL
6.5 KiB
HTML
<!DOCTYPE html>
|
|
<html lang="en">
|
|
<head>
|
|
<meta charset="UTF-8">
|
|
<meta name="viewport" content="width=device-width, initial-scale=1.0">
|
|
<title>Neurameba Strange Attractor</title>
|
|
<style>
|
|
body {
|
|
margin: 0;
|
|
overflow: hidden;
|
|
background: #000;
|
|
font-family: monospace;
|
|
color: #0f0;
|
|
}
|
|
#canvas {
|
|
display: block;
|
|
}
|
|
#attribution {
|
|
position: absolute;
|
|
bottom: 10px;
|
|
left: 10px;
|
|
font-size: 12px;
|
|
opacity: 0.6;
|
|
}
|
|
</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 resize() {
|
|
canvas.width = window.innerWidth;
|
|
canvas.height = window.innerHeight;
|
|
}
|
|
|
|
window.addEventListener('resize', resize);
|
|
resize();
|
|
|
|
// Parameters (tuned to your specs)
|
|
const params = {
|
|
motion: 0.55,
|
|
density: 0.45,
|
|
complexity: 0.5,
|
|
connectedness: 0.475,
|
|
lifespan: 0.54,
|
|
survivingNodes: 71,
|
|
branchCount: 53,
|
|
loops: 188,
|
|
maxDepth: 14,
|
|
thicknessRatio: 1.5,
|
|
fractalDim: 1.601,
|
|
pulse: { avg: 0.58, min: 0.30, max: 1.55 },
|
|
tone: {
|
|
anger: 0.00,
|
|
sadness: 0.00,
|
|
curiosity: 0.60,
|
|
dryness: 0.90,
|
|
playfulness: 0.10,
|
|
tension: 0.00
|
|
},
|
|
color: {
|
|
curiosity: '#40e0d0',
|
|
dryness: '#777',
|
|
playfulness: '#f0f'
|
|
},
|
|
decayRate: 0.01,
|
|
attractorPoints: 4,
|
|
trails: 30
|
|
};
|
|
|
|
// Strange attractor (Thomas' cyclically symmetric)
|
|
const attractors = [];
|
|
for (let i = 0; i < params.attractorPoints; i++) {
|
|
attractors.push({
|
|
b: 0.16,
|
|
scale: 0.9 + Math.random() * 0.2,
|
|
phase: i * (Math.PI * 2 / params.attractorPoints)
|
|
});
|
|
}
|
|
|
|
// State
|
|
const points = [];
|
|
const trails = [];
|
|
|
|
// Initialize
|
|
function init() {
|
|
for (let i = 0; i < params.density * 200; i++) {
|
|
points.push({
|
|
x: Math.random() * 2 - 1,
|
|
y: Math.random() * 2 - 1,
|
|
z: Math.random() * 2 - 1,
|
|
size: 0.5 + Math.random() * 0.5,
|
|
energy: 1,
|
|
life: 0,
|
|
trail: []
|
|
});
|
|
}
|
|
}
|
|
|
|
// Update attractor state
|
|
function attractor(b, p, t) {
|
|
const x = p.x * Math.cos(b * t + p.phase) - p.y * Math.sin(b * t + p.phase);
|
|
const y = p.y * Math.cos(b * t + p.phase) + p.x * Math.sin(b * t + p.phase);
|
|
return {
|
|
x: Math.sin(y) - b * x,
|
|
y: Math.sin(x) - b * y,
|
|
z: Math.sin(x) - b * z
|
|
};
|
|
}
|
|
|
|
// Draw
|
|
function draw() {
|
|
ctx.fillStyle = 'rgba(0, 0, 0, 0.1)';
|
|
ctx.fillRect(0, 0, canvas.width, canvas.height);
|
|
|
|
const cw = canvas.width;
|
|
const ch = canvas.height;
|
|
const scale = Math.min(cw, ch) * 0.4;
|
|
|
|
const time = performance.now() * 0.001 * params.motion * 2;
|
|
|
|
points.forEach((p, i) => {
|
|
p.life += 0.01;
|
|
|
|
// Apply attractor forces
|
|
let sumX = 0, sumY = 0;
|
|
attractors.forEach(a => {
|
|
const dx = p.x - Math.sin(a * time + a.phase);
|
|
const dy = p.y - Math.cos(a * time + a.phase);
|
|
const dist = Math.sqrt(dx * dx + dy * dy);
|
|
if (dist > 0) {
|
|
sumX += dx / dist;
|
|
sumY += dy / dist;
|
|
}
|
|
});
|
|
|
|
p.x += sumX * 0.01;
|
|
p.y += sumY * 0.01;
|
|
p.z += (Math.random() - 0.5) * 0.01;
|
|
|
|
// Add to trail
|
|
p.trail.push({ x: p.x, y: p.y, size: p.size });
|
|
if (p.trail.length > params.trails) p.trail.shift();
|
|
|
|
// Energy dissipation
|
|
p.energy *= 0.99;
|
|
|
|
// Visual size modulation
|
|
const pulse = params.pulse.avg + Math.sin(time * 0.3 + i) * params.pulse.max * 0.2;
|
|
const size = p.size * (0.5 + pulse * 0.5) * scale;
|
|
|
|
// Color based on tone
|
|
const curiosity = params.tone.curiosity;
|
|
const dryness = params.tone.dryness;
|
|
const playfulness = params.tone.playfulness;
|
|
|
|
const r = dryness > 0.5 ? params.color.dryness : curiosity > 0.5 ? params.color.curiosity : 0;
|
|
const g = dryness > 0.5 ? params.color.dryness : curiosity > 0.5 ? params.color.curiosity : 0;
|
|
const b = dryness > 0.5 ? params.color.dryness : curiosity > 0.5 ? params.color.curiosity : params.color.playfulness;
|
|
|
|
// Trail rendering
|
|
p.trail.forEach((t, j) => {
|
|
const trailOpacity = j / p.trail.length * 0.8;
|
|
const trailSize = size * (0.3 + j * 0.7 / p.trail.length);
|
|
ctx.fillStyle = `rgba(${r}, ${g}, ${b}, ${trailOpacity * p.energy})`;
|
|
ctx.beginPath();
|
|
ctx.arc(
|
|
t.x * scale + cw * 0.5,
|
|
t.y * scale + ch * 0.5,
|
|
trailSize,
|
|
0,
|
|
Math.PI * 2
|
|
);
|
|
ctx.fill();
|
|
});
|
|
|
|
// Point rendering
|
|
if (p.life > 0.1 && p.energy > 0.01) {
|
|
ctx.fillStyle = `rgba(${r}, ${g}, ${b}, ${p.energy * 0.8})`;
|
|
ctx.beginPath();
|
|
ctx.arc(
|
|
p.x * scale + cw * 0.5,
|
|
p.y * scale + ch * 0.5,
|
|
size * p.energy,
|
|
0,
|
|
Math.PI * 2
|
|
);
|
|
ctx.fill();
|
|
}
|
|
});
|
|
}
|
|
|
|
// Animation loop
|
|
function animate() {
|
|
draw();
|
|
requestAnimationFrame(animate);
|
|
}
|
|
|
|
init();
|
|
animate();
|
|
</script>
|
|
</body>
|
|
</html> |