ba1d993676
Gameplay (legal moves, move application, pressure maps, PGN parsing) now runs entirely in the browser via a chess.js port of engine.py (static/engine.js + vendored chess.min.js). The app no longer calls the server during play, so it stays instant and works even when the backend is scaled to zero or offline. - engine.js: line-for-line port of engine.py; parity-verified identical output (pressure, FEN, status, SAN/UCI) across all 10 built-in games / 829 frames. - app.js: replace all /api fetches with local engine calls; graceful PGN parse errors; asset paths moved to root for static serving. - Save games to localStorage + load from the game dropdown; export any game as a .pgn file. Minimal additive UI in the existing export row. - games.json generated from games.py (scripts/export_games.py). - Production Dockerfile -> static-web-server (~9MB image, was ~150MB python). - make dev -> bun static server; add make games / make parity targets. - app.py kept as optional fallback (serves static app + /api routes). - parity/: automated JS-vs-python engine parity test. git diff stat: 16 files changed, 722 insertions(+), 128 deletions(-)
27 lines
633 B
Python
27 lines
633 B
Python
"""Dump python-chess engine output for every built-in game as JSON on stdout.
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Consumed by check.js to verify the JS engine produces identical results.
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Run from the package root: `uv run python parity/dump_python.py`.
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"""
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import json
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import sys
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from chess_pressure.engine import parse_pgn
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from chess_pressure.games import GAMES
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out = []
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for g in GAMES:
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parsed = parse_pgn(g["pgn"])
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out.append(
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{
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"id": g["id"],
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"pgn": g["pgn"],
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"moves": parsed["moves"],
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"frames": parsed["frames"],
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"result": parsed["result"],
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}
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)
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json.dump(out, sys.stdout)
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