claude
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Identity is shaped like Steamworks so swapping to it is one subclass and no schema change: the client presents an opaque ticket, the server validates it into a stable 64-bit account id, and nothing downstream sees anything else. LocalAuthProvider takes any ticket at face value -- insecure on purpose, and labelled as such everywhere, because the point is the shape rather than the security. Do not ship it. Characters persist as JSON keyed by account. Account ids are written as decimal strings because they are 64-bit and JSON numbers are doubles, which would silently round them. A corrupt store aborts the server rather than starting empty: starting empty looks like it worked and then saves over every character on the first level-up. Levels 1-15, +10 max health each, level DERIVED from lifetime experience rather than stored beside it, so a hand-edited save cannot produce a level 12 character with a level 3's experience. Experience is shared undivided across everyone alive in the instance -- splitting it would make bringing a friend cost you progress. A level-up heals by what it added, so gaining one mid-fight is relief rather than a bar that moved further from full. Death is permanent and unbinds the character entirely: no "return to the hub as the character who just died", because the run is over. The record is retired, never deleted. The five-character cap counts LIVING characters only -- counting the dead would lock a player out of their own account after five deaths. Verified by tools/diag_progression.tscn, which drives the real server through kill -> xp -> level -> health and death -> retire -> roster. The bot smoke test cannot cover that: bots are poor shots and rarely kill anything. Writing it caught two real ordering bugs -- the death event was dispatched before the payload that tells the player they died, and the dead character stayed bound to the peer. Also added --account and --store so several clients and test runs can coexist on one machine. The smoke test now uses a scratch store; without it a rerun resumed the previous run's characters and "a character was created" quietly stopped being true. 193 tests. check.sh, test.sh, smoke.sh, diag_progression and diag_prediction all pass.
Transcience
Top-down twin-stick bullet-hell with a dedicated, server-authoritative backend. Godot 4.7, GDScript, no external runtime dependencies.
Play
tools/server.sh # dedicated server on :27015
tools/client.sh --join --name ada # connect a client
Or run one client and press Host and play for a listen server.
Controls — WASD move, mouse aim, LMB fire, E on the ring in the hub to enter a dungeon, hold F for three seconds to escape back to the hub.
Develop
tools/check.sh # parse-check every script ~5s
tools/test.sh # GUT suite, headless ~2s
tools/smoke.sh # server + 2 bot clients, ENet ~35s
godot --headless --path . --script tools/bench.gd
Read CLAUDE.md first — it is short, and the Godot CLI gotchas in it will otherwise cost an afternoon.
What is here
| Twin-stick bullet hell | Server-simulated bullet field, ~350 concurrent bullets at 0.24 ms/tick. |
| Authoritative multiplayer | Clients send input only. Hits, damage, death and instance transfers are server decisions. Prediction + reconciliation for the local player. |
| Enemies | Four readable behaviours (static, drift, orbit, approach, strafe) composed with bullet emitters. |
| Boss | The Warden of the Fold: stationary, four phases, each adding one idea. Defined entirely as data. |
| Lobby hub | Shared persistent instance with a portal into dungeon runs. |
| Emergency escape | Three-second channel back to the hub, cancelled by damage. |
Docs
- docs/ROADMAP.md — what is built, what is next, where each feature lives
- docs/DECISIONS.md — settled design decisions and their reasoning
- CREDITS.md — third-party asset attribution
- CLAUDE.md — commands, invariants, Godot CLI gotchas
- docs/WORKFLOW.md — agent-assisted Godot development, and why the setup looks like this
- docs/ARCHITECTURE.md — code map and the node-free simulation
- docs/NETCODE.md — replication model, hit validation, known gaps
- docs/ROADMAP.md — what is built and what is next