Boids

Boids flocking simulation in the terminal, in C.

A small, self-contained demo written in pure C — no external libraries, just the standard library and POSIX. Part of the Corg-Labs collection of single-file C programs.

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How It Works

1. Each agent looks at neighbours within a radius
2. Three rules apply: separation, alignment and cohesion
3. Speed is clamped so the flock moves coherently
4. Direction is drawn as an arrow glyph

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Build

gcc boids.c -o boids -lm

Run

./boids

Controls

Press Ctrl-C to quit.