[alecu]

Summary

Ports the five concept games from the Ludum Dare 60 "Circular Arcade" prototype (https://tmtg.nl/ludumdare/ld60/) to the VS2 API, under games/ld60/:

Game	Port of
Spiral Tunnel	dive down a tunnel that winds round the disc, bombing UFOs
Catch the Robots	catch 20 wall-hugging robots in a random maze that wraps round the disc
Rim Runner	run and jump round the inside of the rim, collecting eggs and landing on birds
Dodge 'Em	five-lane circular track, eat the pills while red cars come the other way
Defender	fly over a planet in the middle, shooting the aliens

Each game has a title, a result screen with the time, a saved best time (vs2.saves), sounds and a menu icon of its own. They show up in a new "ld60" menu group; run one with ./vs-emu.sh --game ld60.<name>.

How they work

• The world is 32 tiles of 8 px on a TUNNEL layer, exactly one trip round the disc, and the camera turns with the player (the tilemap's x).
• Everything is created in build() and moved afterwards: tile cells are one shared bytearray, sprites are fixed lists, no allocation in update().
• Things near the middle of the disc are hard to read, so the games with a deep level scroll inward with the player and keep them toward the rim (Rim Runner about 8 LEDs in, Spiral Tunnel a quarter of the way in, Catch the Robots no deeper than halfway), following to the end of the level.
• Spiral Tunnel uses slanted edge tiles like the prototype, with collision along the same lines. The other walls are solid with a bright edge; Dodge 'Em's outer wall is a single LED on the rim.
• Art, menu icons and sound effects are generated by tools/ld60_assets/make_art.py and make_sounds.py.

Differences from the prototype

• Controls are the controller's, not WASD+L.
• Rim Runner's platforms are four tiles apart instead of five: a jump rises about 4.6 tiles, so the original's could not be reached from below.
• The tunnel and maze are shorter, and speeds and gravity are scaled from the prototype's 60 fps to the console's 33 ticks per second.
• Each game ends with its time and restarts on A.

Test plan

• tests/test_ld60_games.py (73 tests, headless director with a virtual clock): title and result flow, best-time saving, 1500-tick random-input run per game, and each game's rules; also registered in tests/run_tests.py.
• Full tests/run_tests.py passed (before the last few tuning commits; the LD60 tests and the mpy-cross check were re-run after them).
• Rendered frames of every game through the emulator's renderer; a lookahead bot flew Spiral Tunnel to the end (only UFOs killed it).
• Play each game in the desktop emulator and, ideally, on the disc: feel and difficulty are untested by a human, and so are the colours on the real LEDs.

🤖 Generated with Claude Code