🐦 2D Boids — Flocking on a Flat Canvas

🔬 What it demonstrates

Emergent flocking from three purely local rules — no boid knows about the flock as a whole, only about the handful of neighbours inside its own perception radius.

🎮 How to use

Drag the weight sliders to reshape the flock live, choose a hawk mode and click or drag the canvas to lure it with your cursor, and drag a tree or the pylon to force the flock to split and reform around it.

💡 Did you know?

Because the neighbour search uses a spatial hash grid instead of checking every pair, this simulation stays smooth well past 400 simultaneous agents in a plain 2D canvas.