240 lines
8.8 KiB
Python
240 lines
8.8 KiB
Python
#!/usr/bin/env python3
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"""Parse a Forge sim log into a readable report + JSON artifact.
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python3 tools/forge_report.py <log> <json_out> <txt_out> [games] [seed] [deck_path] [ours_name]
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Usually invoked by tools/run_forge.sh / batch_run.py / variant.py rather than
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directly. `ours_name` is the Forge [metadata] Name= value for our seat
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(DeckContext.forge_metadata_name(), from config.yaml) -- never a hardcoded
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deck name. If omitted, it's derived from deck_path's deck directory.
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"""
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import sys, os, re, json, statistics as st
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from datetime import datetime, timezone
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from collections import Counter
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sys.path.insert(0, os.path.dirname(os.path.abspath(__file__)))
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OURS = "our deck"
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def is_ours(name):
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"""Match our seat even when an AI profile is in play.
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Passing -a <profile> makes Forge rename the seat to "<name> [Combo]".
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Exact matching would silently report a 0% win rate and an empty card
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table, so match the bare name or name + [profile]. Opponent precons
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legitimately contain brackets ("[C19] [2019]"), so this deliberately
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anchors on OURS rather than stripping all bracket suffixes.
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"""
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return name == OURS or name.startswith(OURS + " [")
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def deck_name_for(deck_path):
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"""Best-effort: walk up from a decklist path to find the deck's config.yaml
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and return its Forge metadata name. Falls back to None (caller keeps OURS)."""
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d = os.path.dirname(os.path.abspath(deck_path))
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for _ in range(6):
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cfg = os.path.join(d, "config.yaml")
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if os.path.exists(cfg):
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from deckctx import DeckContext
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return DeckContext(d).forge_metadata_name()
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parent = os.path.dirname(d)
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if parent == d:
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break
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d = parent
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return None
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def parse_match_result(log_path):
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"""The 'Match Result:' line is authoritative for wins per player.
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Individual 'Game Result' lines can be missing if output was truncated, so
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prefer this tally when present.
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"""
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tally, total = {}, 0
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for line in open(log_path, errors="ignore"):
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if not line.startswith("Match Result:"):
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continue
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body = line[len("Match Result:"):].strip()
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for m in re.finditer(r"(Ai\(\d+\)-.+?):\s*(\d+)(?=\s+Ai\(|\s*$)", body):
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name = re.sub(r"^Ai\(\d+\)-", "", m.group(1)).strip()
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tally[name] = int(m.group(2))
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total = sum(tally.values())
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return tally, total
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def count_timeouts(log_path):
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"""Games Forge abandoned as a draw for exceeding the -c clock.
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A timeout is scored a Draw -- nobody wins -- so these games are unwinnable
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by construction. They cluster in long grindy games, which is exactly what
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an aristocrats deck is built to win, so they bias our win rate DOWN.
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"""
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n = 0
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for line in open(log_path, errors="ignore"):
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if "Stopping slow match as draw" in line:
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n += 1
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return n
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def parse(log_path):
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games, cur = [], {}
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for line in open(log_path, errors="ignore"):
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line = line.strip()
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m = re.match(r"Game Outcome: Turn (\d+)", line)
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if m:
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cur = {"turns": int(m.group(1)), "winner": None, "losers": []}
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continue
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m = re.match(r"Game Outcome: (.+?) has (won|lost) because (.+)", line)
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if m:
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who, verdict, why = m.group(1), m.group(2), m.group(3)
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name = re.sub(r"^Ai\(\d+\)-", "", who)
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if verdict == "won":
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cur["winner"] = name
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cur["win_reason"] = why
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else:
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cur["losers"].append({"player": name, "reason": why})
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continue
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m = re.match(r"Game Result: Game (\d+) ended in (\d+) ms\. (.+?) has won", line)
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if m:
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cur["game"] = int(m.group(1))
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cur["ms"] = int(m.group(2))
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games.append(cur)
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cur = {}
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return games
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def report(games, n_req, seed, log, jsonp, txtp, deck_path="decklist.mgt",
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tally=None, tally_total=0, timeouts=0):
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L, add = [], lambda s: L.append(s)
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# prefer the authoritative Match Result tally over per-game lines
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if tally and tally_total:
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wins, n = Counter(tally), tally_total
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else:
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wins = Counter(g["winner"] for g in games if g.get("winner"))
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n = len(games)
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ours = sum(v for k, v in wins.items() if is_ours(k))
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turns = [g["turns"] for g in games if g.get("turns")]
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secs = [g["ms"] / 1000 for g in games if g.get("ms")]
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add("=" * 68)
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add("FORGE SIMULATION REPORT — 4-player Commander pod")
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add("=" * 68)
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add(f"games completed : {n} (requested {n_req}) seed: {seed}")
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add(f"decklist : {deck_path} (full 100 cards)")
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add(f"engine : Forge 2.0.14, full rules, AI vs AI")
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add("")
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add("WIN RATE")
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add("-" * 68)
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if n:
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add(f" our deck : {ours}/{n} ({100*ours/n:.1f}%) "
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f"[random baseline in a 4-pod = 25%]")
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add("")
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add(" all players:")
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for name, w in wins.most_common():
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tag = " <-- ours" if is_ours(name) else ""
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bar = "#" * int(30 * w / n)
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add(f" {name[:38]:<40} {w:>3} ({100*w/n:4.1f}%) {bar}{tag}")
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add("")
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add("TIMEOUT DRAWS")
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add("-" * 68)
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if timeouts:
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add(f" {timeouts} game(s) abandoned as a draw for exceeding the clock "
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f"({100*timeouts/max(n,1):.0f}% of games)")
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add(" A draw means NOBODY wins -- these games are unwinnable by")
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add(" construction, and they cluster in long grindy games, which is")
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add(" exactly what this deck is built to win. Raise -c to fix.")
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else:
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add(" none -- no games hit the clock limit")
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add("")
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add("GAME LENGTH")
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add("-" * 68)
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if turns:
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add(f" turns median {int(st.median(turns))} min {min(turns)} max {max(turns)}")
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if secs:
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add(f" seconds median {st.median(secs):.0f} total {sum(secs)/60:.1f} min")
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add("")
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add("HOW OUR DECK LOST")
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add("-" * 68)
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reasons = Counter()
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for g in games:
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for l in g.get("losers", []):
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if is_ours(l["player"]):
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reasons[l["reason"][:52]] += 1
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if reasons:
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for r, c in reasons.most_common():
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add(f" {c:>3}x {r}")
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else:
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add(" (never lost)")
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add("")
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add("WHO BEAT US (winner, in games our deck lost)")
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add("-" * 68)
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beat = Counter()
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for g in games:
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w = g.get("winner")
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if w and not is_ours(w) and any(is_ours(l["player"]) for l in g.get("losers", [])):
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beat[w] += 1
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if beat:
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for name, c in beat.most_common():
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add(f" {c:>3}x {name}")
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else:
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add(" (n/a)")
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add("")
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add("CAVEAT — READ THIS BEFORE TRUSTING THE WIN RATE")
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add("-" * 68)
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add(" Forge's AI is heuristic and, by its own documentation, WEAK AT COMBO")
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add(" decks. Ours is a combo/aristocrats deck, so the AI systematically")
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add(" under-plays it: it will miss sac-loop lines a human would see.")
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add(" Read this as a FLOOR on the deck's power, and as proof the deck")
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add(" functions and its cards interact — not as a power rating.")
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add(" Opponents are stock precons, which are roughly bracket 2.")
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add("")
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add("=" * 68)
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add(f"decklist : {deck_path}")
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add(f"full log : {log} (every game, all Forge output)")
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add(f"raw data : {jsonp}")
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add(f"this report: {txtp}")
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add("=" * 68)
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return "\n".join(L)
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def main():
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global OURS
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log, jsonp, txtp = sys.argv[1], sys.argv[2], sys.argv[3]
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n_req = sys.argv[4] if len(sys.argv) > 4 else "?"
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seed = sys.argv[5] if len(sys.argv) > 5 else "?"
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deck_path = sys.argv[6] if len(sys.argv) > 6 else "decklist.mgt"
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ours_name = sys.argv[7] if len(sys.argv) > 7 else deck_name_for(deck_path)
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if ours_name:
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OURS = ours_name
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games = parse(log)
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tally, total = parse_match_result(log)
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timeouts = count_timeouts(log)
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txt = report(games, n_req, seed, log, jsonp, txtp, deck_path=deck_path,
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tally=tally, tally_total=total, timeouts=timeouts)
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wins = Counter(tally) if tally else Counter(g["winner"] for g in games if g.get("winner"))
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json.dump({
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"meta": {"generated": datetime.now(timezone.utc).strftime("%Y%m%dT%H%M%SZ"),
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"engine": "Forge 2.0.14", "format": "Commander, 4 players",
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"games_requested": n_req, "games_completed": len(games), "seed": seed,
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"decklist_file": deck_path, "log_file": log,
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"caveat": "Forge AI is weak at combo decks; treat win rate as a floor"},
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"win_counts": dict(wins),
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"timeout_draws": timeouts,
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"our_win_rate": ((sum(v for k, v in wins.items() if is_ours(k)) / n_games)
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if (n_games := (total or len(games))) else None),
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"games": games,
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}, open(jsonp, "w"), indent=1)
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open(txtp, "w").write(txt + "\n")
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print(txt)
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print(f"\nsaved: {txtp}")
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if __name__ == "__main__":
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main()
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