9238ce61c6
End-of-game scores are POSTed to a configurable backend URL; the main menu
gains a "Global Leaderboard" entry that fetches and renders the top N for
the current board. Default `global_leaderboard=0` ships the code dormant
until the backend at leaderboard_url is live.
Architecture:
- httpclient.h: thin async interface. http_post_json / http_get fire and
forget; the user callback runs from http_pump() (native) or the
Emscripten runtime (web). No blocking calls.
- httpclient_native.cpp: libcurl-multi, polled per frame.
- httpclient_web.cpp: emscripten_fetch (-sFETCH=1 link option).
- leaderboard.{h,cpp}: portable game-side module. Hand-rolled JSON
build/parse for the tiny fixed-shape wire format; no JSON dep.
Identity: player name + a player-typed "board name" (shared room code).
A per-install RFC-4122-v4 UUID `client_id` is auto-generated on first run
via SDL_rand_bits and stored in the config — server uses it for rate
limiting / dedup, not as a public identity.
Wire format (informational, server is out-of-tree):
POST /api/scores body: {board, name, client_id, score, skill,
gametype, end_scene, end_lives, end_health,
playtime, start_date, end_date}
resp: {rank, total}
GET /api/scores?board=&limit=50
resp: {board, total, scores:[{name,score,end_scene}]}
Hook points:
- manage.cpp game_start: populate hi.start_date; reset_submission().
- manage.cpp game_stop: populate hi.end_date and the profile name on hi,
then leaderboard::submit_score after scorefile.record.
- kobo.cpp main: http_init/http_shutdown around the run; generate
client_id on first run when empty.
- kobo.cpp kobo_gfxengine_t::frame: http_pump() before gsm.frame().
- states.cpp st_game_over post_render: renders "Submitting…" / "Rank #N of M"
/ "(offline)" under "GAME OVER".
- states.cpp main_menu: "Global Leaderboard" button (only when enabled
+ board name set).
- states.cpp st_global_leaderboard_t: new browser state listing top 16.
- options.cpp game_options: onoff toggle.
Out of scope for this commit (left as follow-ups):
- In-game text editor for board name / URL (form toolkit has no free-text
widget; users edit via config file or CLI flags for now).
- Retry queue across sessions.
- Server implementation. tools/mock-leaderboard.py is a 100-line Python
scratch server for local testing only.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
45 lines
1.2 KiB
C
45 lines
1.2 KiB
C
/*
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* httpclient.h — thin async HTTP client.
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*
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* Two impls share this header:
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* httpclient_native.cpp — libcurl-multi, polled from http_pump().
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* httpclient_web.cpp — emscripten_fetch; http_pump() is a no-op.
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*
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* Callbacks fire on the main thread: native impls dispatch from http_pump(),
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* web from the Emscripten runtime (which is already main-thread).
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*
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* The `body` pointer in http_response_t is only valid for the duration of
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* the callback — copy what you need.
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*/
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#ifndef KOBO_HTTPCLIENT_H
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#define KOBO_HTTPCLIENT_H
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#include <stddef.h>
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typedef struct http_response_t {
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int status; // HTTP status code; 0 = network/transport failure
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const char *body; // NUL-terminated; valid only during the callback
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size_t len;
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} http_response_t;
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typedef void (*http_callback_t)(const http_response_t *resp, void *user);
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#ifdef __cplusplus
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extern "C" {
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#endif
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void http_init(void);
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void http_shutdown(void);
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void http_post_json(const char *url, const char *body,
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http_callback_t cb, void *user);
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void http_get(const char *url, http_callback_t cb, void *user);
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void http_pump(void);
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#ifdef __cplusplus
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}
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#endif
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#endif /* KOBO_HTTPCLIENT_H */
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