birth: Teal Currents in Motion
This commit is contained in:
parent
7e9e640417
commit
fd47af717a
1 changed files with 163 additions and 0 deletions
163
index.html
Normal file
163
index.html
Normal file
|
|
@ -0,0 +1,163 @@
|
||||||
|
<!DOCTYPE html>
|
||||||
|
<html lang="en">
|
||||||
|
<head>
|
||||||
|
<meta charset="UTF-8">
|
||||||
|
<meta name="viewport" content="width=device-width, initial-scale=1.0">
|
||||||
|
<title>Flow Field Study</title>
|
||||||
|
<style>
|
||||||
|
body {
|
||||||
|
margin: 0;
|
||||||
|
overflow: hidden;
|
||||||
|
background: #0a0a0a;
|
||||||
|
font-family: 'Courier New', monospace;
|
||||||
|
}
|
||||||
|
canvas {
|
||||||
|
display: block;
|
||||||
|
}
|
||||||
|
#attribution {
|
||||||
|
position: fixed;
|
||||||
|
bottom: 10px;
|
||||||
|
right: 10px;
|
||||||
|
color: #444;
|
||||||
|
font-size: 10px;
|
||||||
|
z-index: 100;
|
||||||
|
}
|
||||||
|
</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();
|
||||||
|
|
||||||
|
// Flow field parameters
|
||||||
|
const particleCount = 150 * (0.5 + 0.5);
|
||||||
|
const particleSize = 1.5 * (0.5 + 0.5);
|
||||||
|
const motionStrength = 0.8 * (0.5 + 0.5);
|
||||||
|
const complexityFactor = 0.7;
|
||||||
|
const connectednessFactor = 0.6;
|
||||||
|
const baseSpeed = 0.5;
|
||||||
|
const maxSpeed = 2.0;
|
||||||
|
const trailLength = 5 * (1.1 - 0.5);
|
||||||
|
|
||||||
|
// Tone parameters
|
||||||
|
const dryness = 0.9;
|
||||||
|
const playfulness = 0.1;
|
||||||
|
const curiosity = 0.8;
|
||||||
|
|
||||||
|
// Color palette based on tone
|
||||||
|
const hue = (curiosity * 180) + 100; // Teal range
|
||||||
|
const saturation = 0.8 - (dryness * 0.5);
|
||||||
|
const brightness = 0.7 - (playfulness * 0.2);
|
||||||
|
|
||||||
|
// Flow field grid
|
||||||
|
const gridSize = 30;
|
||||||
|
const cols = Math.floor(canvas.width / gridSize) + 1;
|
||||||
|
const rows = Math.floor(canvas.height / gridSize) + 1;
|
||||||
|
|
||||||
|
// Precompute flow field
|
||||||
|
const flowField = [];
|
||||||
|
for (let y = 0; y < rows; y++) {
|
||||||
|
for (let x = 0; x < cols; x++) {
|
||||||
|
const angle = Math.sin(x * complexityFactor) * Math.cos(y * complexityFactor) * Math.PI * 2;
|
||||||
|
const vx = Math.cos(angle) * motionStrength;
|
||||||
|
const vy = Math.sin(angle) * motionStrength;
|
||||||
|
flowField.push({ x: x * gridSize, y: y * gridSize, vx, vy });
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Particles
|
||||||
|
class Particle {
|
||||||
|
constructor() {
|
||||||
|
this.reset();
|
||||||
|
}
|
||||||
|
|
||||||
|
reset() {
|
||||||
|
this.x = Math.random() * canvas.width;
|
||||||
|
this.y = Math.random() * canvas.height;
|
||||||
|
this.speed = baseSpeed + Math.random() * (maxSpeed - baseSpeed);
|
||||||
|
this.direction = Math.random() * Math.PI * 2;
|
||||||
|
this.velocity = { x: 0, y: 0 };
|
||||||
|
this.history = [];
|
||||||
|
}
|
||||||
|
|
||||||
|
update() {
|
||||||
|
// Find nearest flow field point
|
||||||
|
const col = Math.floor(this.x / gridSize);
|
||||||
|
const row = Math.floor(this.y / gridSize);
|
||||||
|
const index = row * cols + col;
|
||||||
|
if (index >= 0 && index < flowField.length) {
|
||||||
|
const field = flowField[index];
|
||||||
|
this.direction += (Math.atan2(field.vy, field.vx) - this.direction) * 0.1;
|
||||||
|
}
|
||||||
|
|
||||||
|
// Update velocity
|
||||||
|
this.velocity.x = Math.cos(this.direction) * this.speed;
|
||||||
|
this.velocity.y = Math.sin(this.direction) * this.speed;
|
||||||
|
|
||||||
|
// Apply motion
|
||||||
|
this.x += this.velocity.x;
|
||||||
|
this.y += this.velocity.y;
|
||||||
|
|
||||||
|
// Boundary check
|
||||||
|
if (this.x < 0) this.x = canvas.width;
|
||||||
|
if (this.x > canvas.width) this.x = 0;
|
||||||
|
if (this.y < 0) this.y = canvas.height;
|
||||||
|
if (this.y > canvas.height) this.y = 0;
|
||||||
|
|
||||||
|
// Add to history
|
||||||
|
this.history.push({ x: this.x, y: this.y });
|
||||||
|
if (this.history.length > trailLength) {
|
||||||
|
this.history.shift();
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
draw() {
|
||||||
|
ctx.strokeStyle = `hsla(${hue}, ${saturation * 100}%, ${brightness * 100}%, 0.8)`;
|
||||||
|
ctx.lineWidth = particleSize * (0.5 + 0.5);
|
||||||
|
|
||||||
|
ctx.beginPath();
|
||||||
|
for (let i = 0; i < this.history.length; i++) {
|
||||||
|
const point = this.history[i];
|
||||||
|
const alpha = i / this.history.length;
|
||||||
|
ctx.globalAlpha = alpha * 0.7;
|
||||||
|
if (i === 0) {
|
||||||
|
ctx.moveTo(point.x, point.y);
|
||||||
|
} else {
|
||||||
|
ctx.lineTo(point.x, point.y);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
ctx.stroke();
|
||||||
|
ctx.globalAlpha = 1.0;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
const particles = Array.from({ length: particleCount }, () => new Particle());
|
||||||
|
|
||||||
|
function animate() {
|
||||||
|
// Fade background slightly
|
||||||
|
ctx.fillStyle = 'rgba(10, 10, 10, 0.05)';
|
||||||
|
ctx.fillRect(0, 0, canvas.width, canvas.height);
|
||||||
|
|
||||||
|
// Update and draw all particles
|
||||||
|
particles.forEach(particle => {
|
||||||
|
particle.update();
|
||||||
|
particle.draw();
|
||||||
|
});
|
||||||
|
|
||||||
|
requestAnimationFrame(animate);
|
||||||
|
}
|
||||||
|
|
||||||
|
animate();
|
||||||
|
</script>
|
||||||
|
</body>
|
||||||
|
</html>
|
||||||
Loading…
Add table
Reference in a new issue