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#!/usr/bin/env python3
import sys
import os
import shutil
import argparse
parser = argparse.ArgumentParser(description='''BlankPlays challenge extractor.
Extracts challenges from log files generated by Macondo's autoplay command.''')
parser.add_argument('-w', '--word-list', required=True, help='File containing list of words, separated by newlines.')
parser.add_argument('-o', '--output', required=True, help='Directory to put challenges in (will be created if does not exist).')
parser.add_argument('--start-idx', default=0, help='Number of first challenge (default: 0)')
parser.add_argument('log_files', nargs='*', help='Macondo log files')
args = parser.parse_args()
if not args.log_files:
print('At least one log file must be specified.')
sys.exit(1)
alphabet = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'
# board size
N = 15
word_list = set(line.strip().upper() for line in open(args.word_list, encoding='utf-8'))
# can change these to implement non-ASCII tiles
def encode(tile: str) -> int:
return ord(tile)
def decode(tile: int) -> str:
if tile == 0: return '.'
return chr(tile)
class GameState:
def __init__(self) -> None:
self.board = bytearray(N * N)
def make_play(self, play: str) -> None:
if play.startswith('(exch') or play == '(Pass)':
return
coord = play[:3].strip()
tiles = play[4:]
horizontal = coord[0].isdigit()
if horizontal:
row = int(coord[:-1]) - 1
col = ord(coord[-1]) - ord('A')
else:
row = int(coord[1:]) - 1
col = ord(coord[0]) - ord('A')
for c in tiles:
assert row >= 0 and col >= 0 and row < N and col < N
if c != '.':
self.board[row * N + col] = encode(c)
if horizontal:
col += 1
else:
row += 1
def board_string(self) -> str:
rows = []
for row in range(15):
rows.append(''.join(decode(tile) for tile in self.board[row*N:(row+1)*N]) + '\n')
return ''.join(rows)
def try_place(self, row: int, col: int, letter: str) -> list[str]:
board = self.board[:]
if board[row*N+col]:
# there's already a tile here
return []
board[row*N+col] = encode(letter)
neighbours = []
if row > 0:
neighbours.append(board[(row-1)*N+col])
if row < N-1:
neighbours.append(board[(row+1)*N+col])
if col > 0:
neighbours.append(board[row*N+col-1])
if col < N-1:
neighbours.append(board[row*N+col+1])
if all(n == 0 for n in neighbours):
# doesn't connect to any existing plays
return []
i = col
while i > 0 and board[row*N+i-1]:
i -= 1
horizontal_word = ''
while i < 15 and board[row*N+i]:
horizontal_word += decode(board[row*N+i])
i += 1
words = []
if len(horizontal_word) > 1:
words.append(horizontal_word)
i = row
while i > 0 and board[(i-1)*N+col]:
i -= 1
vertical_word = ''
while i < 15 and board[i*N+col]:
vertical_word += decode(board[i*N+col])
i += 1
if len(vertical_word) > 1:
words.append(vertical_word)
if not all(word in word_list for word in words):
return []
return words
def blank_plays(self) -> list[tuple[int, str, list[str]]]:
plays = []
for row in range(N):
for col in range(N):
for letter in alphabet:
words_formed = self.try_place(row, col, letter)
if words_formed:
plays.append((row*15+col, letter, words_formed))
return plays
def output(self, filename: str) -> None:
if os.path.exists(filename):
print(filename, 'already exists. Aborting.')
sys.exit(1)
with open('challenge.tmp', 'wb') as out:
out.write(self.board_string().encode())
for square, letter, _ in self.blank_plays():
out.write(f'{square} {letter}\n'.encode())
os.rename('challenge.tmp', filename)
def is_nice(play: tuple[int, str, list[str]]) -> bool:
_square, letter, words = play
# we want 5+-letter words that aren't just S hooks
return any(len(w) >= 5 and not (letter == 'S' and w.endswith('S')) for w in words)
output_dir = args.output
game_idx = args.start_idx
count = 0
try:
os.mkdir(output_dir)
except FileExistsError:
pass
for filename in args.log_files:
games_file = open(filename, encoding='utf-8')
lines = iter(games_file)
next(lines) # skip header
games = {}
for line in lines:
line = line.strip()
fields = line.split(',')
game_id = fields[1]
if game_id not in games:
games[game_id] = GameState()
play = fields[4]
games[game_id].make_play(play)
if fields[3] == '?':
game = games[game_id]
plays = game.blank_plays()
nice_plays = {play[0] for play in plays if is_nice(play)}
# require at least 3 squares that make 5+-letter words
if len(nice_plays) >= 3:
game.output(f'{output_dir}/{game_idx:05}.txt')
print(game.board_string())
print(len(plays), 'plays')
count += 1
game_idx += 1
print(count, 'challenges made.')
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