463877773c
Reverse-engineering + open reimplementation workspace for Eushully's AGE/SYS4 engine (first target: Himegari). The repo root is age-reimpl/; the original game install and the extracted ALF data are siblings outside the repo and are never tracked. build/ (derived corpora) is gitignored and regenerated by the tools. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
97 lines
6.9 KiB
Markdown
97 lines
6.9 KiB
Markdown
# Project Structure
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Layout for the *姫狩りダンジョンマイスター* (Himegari) → open AGE-engine reimplementation.
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The guiding rule is **source vs. derived vs. our work**: the shipped game is read-only
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input, the extracted archives and everything our tools generate are disposable/reproducible,
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and our code + docs live entirely apart from the game install. Nothing we produce is ever
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written back into the game folder.
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Workspace root: `S:\Game Hacking\Eushully\Himegari\`
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```
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S:\Game Hacking\Eushully\Himegari\ ← workspace root (three siblings)
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│
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├── 姫狩りダンジョンマイスター/ ← SOURCE — pristine game install (read-only)
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│ │ Never edit, move, or add to this folder. It holds ORIGINALS ONLY.
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│ ├── AGE.EXE, AGERC.DLL, *.dll shipped engine (packed). Stays intact and
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│ │ runnable in place — Frida launches it if needed.
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│ ├── DATA1-5.ALF, APPEND01.ALF/.AAI shipped archives (~2.3 GB).
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│ ├── *.BIN 52 loose patch-override scripts (v1.03) —
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│ │ AUTHORITATIVE over their DATA1 copies. Plus
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│ │ non-script indices (SYS4INI=S4IC, SYS4AB=S4AB).
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│ └── *.exe (uninstallers), SAS0099.OGG … other shipped files.
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│
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├── extracted/ ← DERIVED (game-side) — extracted ALF contents,
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│ │ ~3.9 GB, regenerable via age-reimpl/bin/BinExtractALF.
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│ └── DATA1/ … DATA5/ DATA1 = 481 .BIN scripts (the corpus we parse)
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│ + AGF/BMP/WAV in the others.
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│
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└── age-reimpl/ ← OUR WORK (everything we made lives here)
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│
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├── tools/ Python tooling (parser/disassembler + extractors + VM)
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│ ├── paths.py ★ central path anchor — the ONLY place that knows
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│ │ where the game / extracted / build dirs are. All
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│ │ tools import it; relocatable with no other edits.
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│ ├── sys4load.py loader + disassembler (opcode-decoding)
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│ ├── age_opcodes.py 548-entry AGE opcode/arg-type table (pristine)
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│ ├── age_opcodes_himegari.py inferred Himegari opcode-name overlay
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│ ├── vm0.py headless Python VM (Phase A0); `--test` = RECOVER unit test
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│ ├── extract_phase2.py batch: disasm + text + data extraction
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│ ├── extract_init.py, global_map.py … *INIT parsers, global-var map builder
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│ ├── validate_opcode_table*.py decode-coverage validators
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│ └── probe_*.py format reverse-engineering probes (historical)
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│
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├── bin/ 3rd-party binaries we use (not ours, not the game's)
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│ ├── BinExtractALF.exe ALF archive extractor → produces extracted/
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│ └── LzssCpp.dll its LZSS codec dependency
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│
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├── vm-map/ VM / reverse-engineering reference artifacts
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│ ├── opcodes-himegari.json validated opcode table (what this game uses)
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│ ├── kelebek1-age-shared.cpp / -disassembler.cpp upstream opcode-table source
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│ └── opcode-leads.json, small-script-listings.md, himegari-opcode-notes.md
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│
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├── docs/ all documentation
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│ ├── PROJECT-STRUCTURE.md this file
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│ ├── remake-architecture-and-roadmap.md THE direction doc (phases A–E)
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│ ├── phase-a-slice-plan.md the current slice (A0/A1/A2)
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│ ├── vm-mapping-plan.md the phased decode plan
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│ ├── himegari-port-reference.md master reference + engine background
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│ ├── name-resolution.md call-script + global-var name recovery
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│ ├── sys4-format-notes.md byte-level container format
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│ └── script-inventory.md what the 481 scripts are
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│
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├── build/ DERIVED (our-work-side) — generated by tools/; disposable
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│ ├── disasm/ <NAME>.asm — human-readable disassembly, one per script
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│ ├── text/ extracted text:
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│ │ ├── <NAME>.strings.txt all inline strings in a script
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│ │ ├── dialogue.jsonl show-text lines only (the translation corpus)
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│ │ └── strings.jsonl every string, tagged by source opcode
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│ ├── data/ parsed data tables (*INIT → JSON)
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│ ├── scripts-json/ machine-readable full dumps (on demand via --json)
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│ ├── global-var-map.{json,md} partial global-variable name map
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│ └── manifest.json, opcode-coverage.md
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│
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└── godot/ DELIVERABLE — the Godot/C# engine project (built in Phase A2+)
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```
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## Conventions
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- **Three-way separation.** `姫狩りダンジョンマイスター/` = untouched originals; `extracted/` =
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game-derived data (regenerable, game-side); `age-reimpl/` = everything we authored. The first two
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are consumed, never modified.
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- **Tools never hard-code paths.** `tools/paths.py` derives `GAME_DIR`, `EXTRACTED`, `DATA1`,
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`BUILD`, etc. from its own location. To point the tools at a different install, edit that one file.
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The whole tree can be relocated without touching any other tool.
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- **Path references in docs** are `age-reimpl/`-relative (e.g. `tools/sys4load.py`,
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`build/text/dialogue.jsonl`) unless they name a game/extracted path explicitly.
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- **Authoritative script copies:** where a script exists both as a loose `.BIN` in the game folder
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and under `extracted/DATA1/`, the game-folder copy (patch v1.03) wins. `paths.scripts()` resolves
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this automatically (overrides win).
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- **`build/` and `extracted/` are disposable.** `build/` regenerates via `tools/extract_phase2.py`
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(or `sys4load.py`); `extracted/` regenerates via `bin/BinExtractALF.exe` on the `.ALF` files.
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Safe to delete and rebuild; do not hand-edit.
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- **Encoding:** all generated text is UTF-8 (source strings are cp932/Shift-JIS, decoded on
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extraction). Run Python as `py -3.11 -X utf8`.
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- **The game install is a runnable unit** — do not relocate `AGE.EXE`/`*.ALF`/DLLs relative to each
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other, or the game (and any Frida work) breaks.
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