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>
113 lines
4.5 KiB
Python
113 lines
4.5 KiB
Python
#!/usr/bin/env python3
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"""Phase 2 batch extraction: disassembly + text corpora from every SYS4 script.
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Outputs (all under build/, workspace-root relative):
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build/disasm/<NAME>.asm full disassembly listing (one per script)
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build/text/<NAME>.strings.txt all inline strings in that script
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build/text/dialogue.jsonl show-text (0x6E) lines only — the translation corpus
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build/text/strings.jsonl every inline string, tagged by the opcode that references it
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build/manifest.json per-script stats (instructions, strings, dialogue, decode-clean)
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Authoritative copies: a game-dir override shadows its extracted/DATA1 copy. Run:
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py -3.11 -X utf8 tools/extract_phase2.py
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"""
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from __future__ import annotations
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import json
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import os
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import sys
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from pathlib import Path
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HERE = Path(__file__).resolve().parent
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sys.path.insert(0, str(HERE))
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import paths
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import sys4load
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DATA1 = paths.DATA1
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BUILD = paths.BUILD
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DISASM = BUILD / "disasm"
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TEXT = BUILD / "text"
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SHOW_TEXT = 0x6E # dialogue opcode; type-2 arg = displayed line
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def authoritative_scripts() -> dict[str, Path]:
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"""name -> path, game-dir overrides winning over extracted/DATA1."""
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return paths.scripts()
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def opcode_for_string_ref(scr, value_dword_index: int) -> tuple[int | None, str | None]:
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"""Given the body index of a string's *value* operand, find the owning instruction."""
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for ins in scr.instructions:
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base = ins.offset + 1
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for a in range(len(ins.args)):
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if base + 2 * a + 1 == value_dword_index:
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return ins.opcode, ins.label
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return None, None
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def main() -> int:
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for d in (DISASM, TEXT, BUILD / "data", BUILD / "scripts-json"):
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d.mkdir(parents=True, exist_ok=True)
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files = authoritative_scripts()
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manifest = []
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n_dialogue = n_strings = 0
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skipped = []
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with (TEXT / "dialogue.jsonl").open("w", encoding="utf-8") as dlg, \
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(TEXT / "strings.jsonl").open("w", encoding="utf-8") as allstr:
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for name, p in sorted(files.items()):
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try:
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scr = sys4load.load(p)
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except sys4load.Sys4Error as e:
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skipped.append((name, str(e)))
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continue
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# 1) disassembly listing
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(DISASM / f"{Path(name).stem}.asm").write_text(
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sys4load.render_listing(scr), encoding="utf-8")
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# 2) per-script strings file
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if scr.strings:
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lines = [f"0x{off:05x}\t{txt}" for off, (txt, _) in sorted(scr.strings.items())]
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(TEXT / f"{Path(name).stem}.strings.txt").write_text(
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"\n".join(lines) + "\n", encoding="utf-8")
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# 3) combined corpora, tagged by referencing opcode
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for val_idx, off in sorted(scr.string_refs.items(), key=lambda kv: kv[1]):
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txt = scr.strings.get(off, (None,))[0]
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if txt is None:
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continue
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op, label = opcode_for_string_ref(scr, val_idx)
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rec = {"file": name, "off": f"0x{off:x}",
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"op": f"0x{op:x}" if op is not None else None,
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"label": label, "text": txt}
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allstr.write(json.dumps(rec, ensure_ascii=False) + "\n")
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n_strings += 1
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if op == SHOW_TEXT:
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dlg.write(json.dumps({"file": name, "off": f"0x{off:x}", "text": txt},
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ensure_ascii=False) + "\n")
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n_dialogue += 1
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n, unk, trunc, clean = sys4load.decode_stats(scr)
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manifest.append({"file": name, "instructions": n, "strings": len(scr.strings),
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"clean": clean, "unknown": unk, "truncated": trunc})
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(BUILD / "manifest.json").write_text(
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json.dumps({"scripts": len(manifest), "skipped": skipped,
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"total_dialogue_lines": n_dialogue, "total_strings": n_strings,
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"per_script": manifest}, ensure_ascii=False, indent=2), encoding="utf-8")
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clean = sum(1 for m in manifest if m["clean"])
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print(f"scripts processed: {len(manifest)} (decode-clean: {clean}/{len(manifest)})")
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print(f"skipped (non-script magic): {len(skipped)} -> {[s[0] for s in skipped]}")
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print(f"disasm listings: build/disasm/*.asm")
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print(f"dialogue lines (show-text): {n_dialogue} -> build/text/dialogue.jsonl")
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print(f"all inline strings: {n_strings} -> build/text/strings.jsonl")
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print(f"manifest: build/manifest.json")
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return 0
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if __name__ == "__main__":
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sys.exit(main())
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