python create crossword

import random, re, time, string
from copy import copy as duplicate

# optional, speeds up by a factor of 4
import psyco
psyco.full()

class Crossword(object):
def __init__(self, cols, rows, empty = '-', maxloops = 2000, available_words=[]):
self.cols = cols
self.rows = rows
self.empty = empty
self.maxloops = maxloops
self.available_words = available_words
self.randomize_word_list()
self.current_word_list = []
self.debug = 0
self.clear_grid()

def clear_grid(self): # initialize grid and fill with empty character
self.grid = []
for i in range(self.rows):
ea_row = []
for j in range(self.cols):
ea_row.append(self.empty)
self.grid.append(ea_row)

def randomize_word_list(self): # also resets words and sorts by length
temp_list = []
for word in self.available_words:
if isinstance(word, Word):
temp_list.append(Word(word.word, word.clue))
else:
temp_list.append(Word(word[0], word[1]))
random.shuffle(temp_list) # randomize word list
temp_list.sort(key=lambda i: len(i.word), reverse=True) # sort by length
self.available_words = temp_list

def compute_crossword(self, time_permitted = 1.00, spins=2):
time_permitted = float(time_permitted)

count = 0
copy = Crossword(self.cols, self.rows, self.empty, self.maxloops, self.available_words)

start_full = float(time.time())
while (float(time.time()) - start_full) < time_permitted or count == 0: # only run for x seconds self.debug += 1 copy.current_word_list = [] copy.clear_grid() copy.randomize_word_list() x = 0 while x < spins: # spins; 2 seems to be plenty for word in copy.available_words: if word not in copy.current_word_list: copy.fit_and_add(word) x += 1 #print copy.solution() #print len(copy.current_word_list), len(self.current_word_list), self.debug # buffer the best crossword by comparing placed words if len(copy.current_word_list) > len(self.current_word_list):
self.current_word_list = copy.current_word_list
self.grid = copy.grid
count += 1
return

def suggest_coord(self, word):
count = 0
coordlist = []
glc = -1
for given_letter in word.word: # cycle through letters in word
glc += 1
rowc = 0
for row in self.grid: # cycle through rows
rowc += 1
colc = 0
for cell in row: # cycle through letters in rows
colc += 1
if given_letter == cell: # check match letter in word to letters in row
try: # suggest vertical placement
if rowc - glc > 0: # make sure we're not suggesting a starting point off the grid
if ((rowc - glc) + word.length) <= self.rows: # make sure word doesn't go off of grid coordlist.append([colc, rowc - glc, 1, colc + (rowc - glc), 0]) except: pass try: # suggest horizontal placement if colc - glc > 0: # make sure we're not suggesting a starting point off the grid
if ((colc - glc) + word.length) <= self.cols: # make sure word doesn't go off of grid coordlist.append([colc - glc, rowc, 0, rowc + (colc - glc), 0]) except: pass # example: coordlist[0] = [col, row, vertical, col + row, score] #print word.word #print coordlist new_coordlist = self.sort_coordlist(coordlist, word) #print new_coordlist return new_coordlist def sort_coordlist(self, coordlist, word): # give each coordinate a score, then sort new_coordlist = [] for coord in coordlist: col, row, vertical = coord[0], coord[1], coord[2] coord[4] = self.check_fit_score(col, row, vertical, word) # checking scores if coord[4]: # 0 scores are filtered new_coordlist.append(coord) random.shuffle(new_coordlist) # randomize coord list; why not? new_coordlist.sort(key=lambda i: i[4], reverse=True) # put the best scores first return new_coordlist def fit_and_add(self, word): # doesn't really check fit except for the first word; otherwise just adds if score is good fit = False count = 0 coordlist = self.suggest_coord(word) while not fit and count < self.maxloops: if len(self.current_word_list) == 0: # this is the first word: the seed # top left seed of longest word yields best results (maybe override) vertical, col, row = random.randrange(0, 2), 1, 1 ''' # optional center seed method, slower and less keyword placement if vertical: col = int(round((self.cols + 1)/2, 0)) row = int(round((self.rows + 1)/2, 0)) - int(round((word.length + 1)/2, 0)) else: col = int(round((self.cols + 1)/2, 0)) - int(round((word.length + 1)/2, 0)) row = int(round((self.rows + 1)/2, 0)) # completely random seed method col = random.randrange(1, self.cols + 1) row = random.randrange(1, self.rows + 1) ''' if self.check_fit_score(col, row, vertical, word): fit = True self.set_word(col, row, vertical, word, force=True) else: # a subsquent words have scores calculated try: col, row, vertical = coordlist[count][0], coordlist[count][1], coordlist[count][2] except IndexError: return # no more cordinates, stop trying to fit if coordlist[count][4]: # already filtered these out, but double check fit = True self.set_word(col, row, vertical, word, force=True) count += 1 return def check_fit_score(self, col, row, vertical, word): ''' And return score (0 signifies no fit). 1 means a fit, 2+ means a cross. The more crosses the better. ''' if col < 1 or row < 1: return 0 count, score = 1, 1 # give score a standard value of 1, will override with 0 if collisions detected for letter in word.word: try: active_cell = self.get_cell(col, row) except IndexError: return 0 if active_cell == self.empty or active_cell == letter: pass else: return 0 if active_cell == letter: score += 1 if vertical: # check surroundings if active_cell != letter: # don't check surroundings if cross point if not self.check_if_cell_clear(col+1, row): # check right cell return 0 if not self.check_if_cell_clear(col-1, row): # check left cell return 0 if count == 1: # check top cell only on first letter if not self.check_if_cell_clear(col, row-1): return 0 if count == len(word.word): # check bottom cell only on last letter if not self.check_if_cell_clear(col, row+1): return 0 else: # else horizontal # check surroundings if active_cell != letter: # don't check surroundings if cross point if not self.check_if_cell_clear(col, row-1): # check top cell return 0 if not self.check_if_cell_clear(col, row+1): # check bottom cell return 0 if count == 1: # check left cell only on first letter if not self.check_if_cell_clear(col-1, row): return 0 if count == len(word.word): # check right cell only on last letter if not self.check_if_cell_clear(col+1, row): return 0 if vertical: # progress to next letter and position row += 1 else: # else horizontal col += 1 count += 1 return score def set_word(self, col, row, vertical, word, force=False): # also adds word to word list if force: word.col = col word.row = row word.vertical = vertical self.current_word_list.append(word) for letter in word.word: self.set_cell(col, row, letter) if vertical: row += 1 else: col += 1 return def set_cell(self, col, row, value): self.grid[row-1][col-1] = value def get_cell(self, col, row): return self.grid[row-1][col-1] def check_if_cell_clear(self, col, row): try: cell = self.get_cell(col, row) if cell == self.empty: return True except IndexError: pass return False def solution(self): # return solution grid outStr = "" for r in range(self.rows): for c in self.grid[r]: outStr += '%s ' % c outStr += '\n' return outStr def word_find(self): # return solution grid outStr = "" for r in range(self.rows): for c in self.grid[r]: if c == self.empty: outStr += '%s ' % string.lowercase[random.randint(0,len(string.lowercase)-1)] else: outStr += '%s ' % c outStr += '\n' return outStr def order_number_words(self): # orders words and applies numbering system to them self.current_word_list.sort(key=lambda i: (i.col + i.row)) count, icount = 1, 1 for word in self.current_word_list: word.number = count if icount < len(self.current_word_list): if word.col == self.current_word_list[icount].col and word.row == self.current_word_list[icount].row: pass else: count += 1 icount += 1 def display(self, order=True): # return (and order/number wordlist) the grid minus the words adding the numbers outStr = "" if order: self.order_number_words() copy = self for word in self.current_word_list: copy.set_cell(word.col, word.row, word.number) for r in range(copy.rows): for c in copy.grid[r]: outStr += '%s ' % c outStr += '\n' outStr = re.sub(r'[a-z]', ' ', outStr) return outStr def word_bank(self): outStr = '' temp_list = duplicate(self.current_word_list) random.shuffle(temp_list) # randomize word list for word in temp_list: outStr += '%s\n' % word.word return outStr def legend(self): # must order first outStr = '' for word in self.current_word_list: outStr += '%d. (%d,%d) %s: %s\n' % (word.number, word.col, word.row, word.down_across(), word.clue ) return outStr class Word(object): def __init__(self, word=None, clue=None): self.word = re.sub(r'\s', '', word.lower()) self.clue = clue self.length = len(self.word) # the below are set when placed on board self.row = None self.col = None self.vertical = None self.number = None def down_across(self): # return down or across if self.vertical: return 'down' else: return 'across' def __repr__(self): return self.word ### end class, start execution #start_full = float(time.time()) word_list = ['saffron', 'The dried, orange yellow plant used to as dye and as a cooking spice.'], \ ['pumpernickel', 'Dark, sour bread made from coarse ground rye.'], \ ['leaven', 'An agent, such as yeast, that cause batter or dough to rise..'], \ ['coda', 'Musical conclusion of a movement or composition.'], \ ['paladin', 'A heroic champion or paragon of chivalry.'], \ ['syncopation', 'Shifting the emphasis of a beat to the normally weak beat.'], \ ['albatross', 'A large bird of the ocean having a hooked beek and long, narrow wings.'], \ ['harp', 'Musical instrument with 46 or more open strings played by plucking.'], \ ['piston', 'A solid cylinder or disk that fits snugly in a larger cylinder and moves under pressure as in an engine.'], \ ['caramel', 'A smooth chery candy made from suger, butter, cream or milk with flavoring.'], \ ['coral', 'A rock-like deposit of organism skeletons that make up reefs.'], \ ['dawn', 'The time of each morning at which daylight begins.'], \ ['pitch', 'A resin derived from the sap of various pine trees.'], \ ['fjord', 'A long, narrow, deep inlet of the sea between steep slopes.'], \ ['lip', 'Either of two fleshy folds surrounding the mouth.'], \ ['lime', 'The egg-shaped citrus fruit having a green coloring and acidic juice.'], \ ['mist', 'A mass of fine water droplets in the air near or in contact with the ground.'], \ ['plague', 'A widespread affliction or calamity.'], \ ['yarn', 'A strand of twisted threads or a long elaborate narrative.'], \ ['snicker', 'A snide, slightly stifled laugh.'] a = Crossword(13, 13, '-', 5000, word_list) a.compute_crossword(2) print a.word_bank() print a.solution() print a.word_find() print a.display() print a.legend() print len(a.current_word_list), 'out of', len(word_list) print a.debug #end_full = float(time.time()) #print end_full - start_full

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