Project Sylpheed stores its UI/story text in IXUD entries as UTF-16LE,
interleaved `text, key` (a prose string immediately followed by the
identifier that names it). TextIndex::build(pak) scans a language pak's
IXUD entries and indexes every pair — 8457 English keys from
GP_MAIN_GAME_E: objectives, hints, lose conditions, character names,
and cutscene dialogue.
This makes the whole game read in English: the 16-mission campaign
(Repel the surprise attack → Shoot down Margras → the Prometheus Driver
finale), each mission's briefing, and the named cast (Katana, Raymond,
Ellen, Crichton, …) all resolve. API: get / objectives / lose_conditions
/ hints / character_name. 3 tests.
Examples: campaign / dossier print the readable campaign + cast.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Decode Project Sylpheed's IDXD data model into plain, cloneable structs
(from GP_MAIN_GAME_E.pak; the D/F/I/J/S paks are localized dups):
- Weapon (121), CraftUnit (89, with the AI flight model in .fields),
Vessel (23, structural component counts), PlayerConfig (24) — the
full combat balance.
- Character (68 — faction + portrait set), Stage (29 missions:
location, phases, and the per-stage resource tables it wires up).
- Generic Record / load_records(schema) reads any of the 105 IDXD
schemas without a bespoke struct.
Each blob = one entity; token[0] names the table, fields are
value-before-key. Named Option<> fields for the common stats + a full
`fields` map; defaulted fields stay None (they're code-resident, not on
disc — honest blanks, never guessed). 8 tests against the real disc.
Examples: iso_map / deep_map census the ISO's formats and IDXD schemas;
dm_extract / dm_rows / dm_roster / mission_map dump the decoded data.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
The 13 manifest-unbound hokyu (resupply) cutscenes reuse 5 recordings
(VOICE_D_450..454). The category guess (ship LS/DS × source carrier/
tanker) was wrong for some. The real selector is the cutscene's subtitle
demo-id: 600→450, 601→451, 602→452, 603→453, 604→454 — derived from the
5 BOUND hokyu (each carries both a demo-id and a VOICETRACK), so it
self-validates. Fixes hokyu_LS_s11A/s15A (→451, were wrongly 450) and
hokyu_LS_s24A/s27A (→silent, no voice cue). User-confirmed all correct.
hokyu_voice_token() builds the demo→token map from the bound hokyu and
looks up the target movie's demo-id; replaces the category fallback.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Cracked how the game maps a movie to its voice track and reimplemented it,
fixing wrong/short voices for RT and hokyu cutscenes.
## Mechanism (RE'd from a Canary file-I/O trace, user-confirmed by ear)
The movie voices are ONE continuous XMA stream, physically chunked into
`<lang>\Movie\VOICE_*.slb` (and `\etc\VOICE_D_*.slb`) sound.pak TOC entries
whose boundaries do NOT align with the cutscene cues. A single cue routinely
spans two `.slb` chunks, so a `.slb` does not necessarily hold the track its
name claims (they are off-by-one vs the cues). Each cue ends at an inline
trailer descriptor `(sound_id:u32be, 0x11, …)` whose id repeats at +0x800.
Resolution chain (all derivable on-disc, no guest-code RE):
1. movie -> cue token (ADVERTISE_MOVIE manifest VOICETRACK)
2. cue token -> sound-id (master sound registry, tables.pak
a2c8c185=eng / b04238e0=jpn, schema 0x13cb84ba)
3. sound-id -> [start,end) scan the stream for trailer(id) and its
predecessor; cue audio = the bytes between,
read continuously across chunk boundaries.
Validated: decoded voice length matches each movie within ~0.4s, including
cross-boundary cues (ADV/RT01A/RT01B/RT01C/S00A/S01A + the 5 bound hokyu).
## Changes
- sylpheed-formats/src/movie_voice.rs (new): registry_voice_ids(),
find_descriptor(), find_descriptor_before() (gap-tolerant predecessor).
Unit-tested.
- viewer iso_loader.rs: resolve_movie_voice_region() + decode_voice_region()
(continuous read via existing read_segment_range + to_xma_riffs). Voice/
audio requests now region-first; a `\Movie\` token that fails region stays
SILENT (never plays the wrong off-by-one chunk). Removed the old
movie_is_demo_based suppress hack.
- Anchor tries subdirs Movie/etc/Voice so hokyu `\etc\VOICE_D_*` resolve too.
- Examples resolve_all/validate_cues/hokyu_final document + validate the pipeline.
## Status
- RT / S / ADV cutscene voices: CORRECT (user-confirmed).
- 5 manifest-bound hokyu (VOICE_D_450-454): CORRECT (user-confirmed).
## OPEN (handoff)
13 of 18 hokyu movies have NO manifest VOICETRACK; the game reuses the 5
recordings across stages via a code rule. `hokyu_fallback_token()` currently
guesses by category (ship LS/DS x source carrier-A/tanker-H: LS/A->450,
LS/H->453, DS/A->452, DS/H->454). USER REPORTS THIS IS SOMETIMES WRONG.
- LS/carrier has two takes (450 from s02A, 451 from s09A); the early-vs-late
split is unknown — unbound LS/A currently all default to 450.
- Definitive fix = Canary `--phase_a_fileio_only` file.read trace of an unbound
hokyu (e.g. hokyu_LS_s03A) to see which VOICE_D the game actually streams,
then encode the real rule. Same method that cracked the RT mapping.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
The movie manifest (tables.pak, schema 0x067025b9) is the game's authoritative mission -> phase -> cutscene table. Previously we only scraped VOICE_/SUBTITLE_/.wmv strings by prefix; now we decode the real two-array (slot-keys, then value-records) structure.
MovieEntry gains slot, kind (System/Intro/Phase/PhaseEnd/Supply), mission, phase, subtitle, and telop (the previously-ignored .prt on-screen text overlay). Valueless slots (stages with no resupply video) are recovered without decoding the binary node region, via the fully-derivable MS<NN><X> -> S<NN><X> anchors.
Backward compatible: movie/voice_token and resolve_voice_entry/voice_token/is_manifest are unchanged. Validated end-to-end on the real disc: 101 entries (104 slots - 3 gaps), typed System=6/Intro=27/Phase=32/PhaseEnd=18/Supply=18. examples/manifest_map.rs dumps the full map.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
