boids lab
A free web demo — play it in your browser, no install. Craig Reynolds' boids in one file — three rules, seven sliders, a spatial-hash toggle with a live cost counter, and fully sourced provenance docs
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Open the live demo Source on GitHubFrom the README
**A flock of birds for every screen in the house — and a laboratory for every question you ask it.**
Craig Reynolds' three rules — separation, alignment, cohesion — running as single-file web pages with zero dependencies, no build step, and no accounts. Fly it on your TV. Steer it from your tablet. Rewind it, branch it, and measure the butterfly effect from the couch.
and 500 birds in one page.
just the flock, no controls. Full-screen it and let it run.
model.html in one tab and tablet.html in another.
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