claude
d9a59fff03
The lobby connect menu and three pieces of the HUD (hit-flash overlay, boss bar centering, death-message centering, hint label) were all silently broken by the same Godot gotcha: set_anchors_preset(preset) with the default keep_offsets=false does NOT zero the offsets to the preset's margins -- it recomputes them to preserve the control's *current* rect, which for a freshly constructed Control is (0,0). Anchors end up correct; the actual rect stays pinned to the top-left corner regardless. Fixed by switching to set_anchors_and_offsets_preset() everywhere a Control is built in code, and by using offset_left/offset_top (anchor-relative) instead of .position (absolute) for the HUD hint label. Documented as gotcha #5 in CLAUDE.md. Also split PLAYER_RADIUS into two constants: PLAYER_RADIUS (6.0, the authoritative hitbox used by SimWorld) and PLAYER_VISUAL_RADIUS (13.0, view-only, used by world_view.gd). The client renders every ship a little late relative to the server -- interpolation delay, reconciliation smoothing -- so a hitbox that matched the sprite would let bullets connect against a ship the player watched dodge clear of them. A smaller hitbox means the occasional bullet visibly clips the sprite without a hit, which reads as more forgiving of latency than the reverse. Verified headlessly: a throwaway scene instantiating MainMenu/HUD under a real 1280x720 viewport, asserting the panel is centered and _canvas.size / hint position resolve correctly, before and after each fix. check.sh, test.sh (78/78) and smoke.sh 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
- 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