Chapter-by-chapter companion code for the book. Each code/chNN/ directory is the complete game as it stands at the end of that chapter: build it, run it, diff it against its neighbors.

• Odin nightly dev-2026-07 or later (odin on your PATH). raylib ships with Odin as vendor:raylib; there is nothing else to install.

cd code/ch01
./build.sh        # odin build src -out:crypt
./crypt

Run from the chapter directory: the game loads assets/ relative to where you start it.

• code/chNN/src/ — the game (package crypt)
• code/chNN/assets/ — the art pack (0x72 Dungeon Tileset II v1.7, CC0, by 0x72: https://0x72.itch.io/dungeontileset-ii)
• from ch08: code/chNN/tests/ — headless tests (odin test tests)
• from ch15: code/chNN/shaders/
• ch17 adds the web build (build_web.sh)