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solve.py
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solve.py
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class Card:
def __init__(self, colors, dirs):
self.top, self.right, self.bot, self.left = colors
self.top_dir, self.right_dir, self.bot_dir, self.left_dir = dirs
def rotate(self):
# top -> right (clockwise)
self.right, self.bot, self.left, self.top = (
self.top, self.right, self.bot, self.left)
self.right_dir, self.bot_dir, self.left_dir, self.top_dir = (
self.top_dir, self.right_dir, self.bot_dir, self.left_dir)
def __str__(self):
colors = [self.top, self.right, self.bot, self.left]
dirs = [self.top_dir, self.right_dir, self.bot_dir, self.left_dir]
#____________
#| ^ |
#| |
#| < < |
#| |
#|_____v_____|
#
#bl = 34
#br = 35
#or = 33
#gr = 32 vv replace 32 in thing
#print("\033[1;32;40m Bright Green \n")
colormap = {'bl':'34', 'br':'35', 'or':'33', 'gr':'32'}
dirmap = {'top_dir': {'i':'v','o':'^'},
'right_dir':{'i':'<','o':'>'},
'bot_dir': {'i':'^','o':'v'},
'left_dir': {'i':'>','o':'<'}}
topsym = '\033[1;' + colormap[self.top] + ';49m' + str(dirmap['top_dir'][self.top_dir])+'\033[1;39;49m'
rightsym = '\033[1;' + colormap[self.right] + ';49m' + str(dirmap['right_dir'][self.right_dir])+'\033[1;39;49m'
botsym = '\033[1;' + colormap[self.bot] + ';49m' + str(dirmap['bot_dir'][self.bot_dir])+'\033[1;39;49m'
leftsym = '\033[1;' + colormap[self.left] + ';49m' + str(dirmap['left_dir'][self.left_dir])+'\033[1;39;49m'
return '____________ \n'+\
'| '+topsym+' |\n'+\
'| |\n'+\
'| '+leftsym+' '+rightsym+' |\n'+\
'| |\n'+\
'|_____'+botsym+'_____|'
#return " ".join(c+"-"+d for c, d in zip(colors, dirs))
WIDTH = 3
HEIGHT = 3
EMPTY_BOARD = [None for _ in range(WIDTH*HEIGHT)]
def solve(cards, board = EMPTY_BOARD, pos = 0):
if len(cards) == 0:
return True, board
for i, c in enumerate(cards):
# place card
for _ in range(4):
if place(board, c, pos):
board[pos] = c
remaining_cards = cards[:i] + cards[i+1:]
# recurse
solved, board = solve(remaining_cards, board, pos + 1)
if solved:
# if success, return
return True, board
c.rotate()
# if we're here, we failed, undo, do next
board[pos] = None
# None worked, we failed
board[pos] = None
return False, board
counter = 0
def place(board, card, pos):
global counter
counter += 1
row, col = pos_to_rc(pos)
fits = True
if row > 0:
above_pos = rc_to_pos(row-1, col)
above = board[above_pos]
if above.bot != card.top or \
above.bot_dir == card.top_dir:
fits = False
if col > 0:
# check
left_pos = rc_to_pos(row, col-1)
left = board[left_pos]
if left.right != card.left or \
left.right_dir == card.left_dir:
fits = False
return fits
def rc_to_pos(row, col):
return WIDTH*row + col
def pos_to_rc(pos):
row = pos // WIDTH
col = pos % WIDTH
return (row, col)
def photorealism(board):
boardstr = ''
for row in range(HEIGHT):
rowstr = ''
for col in range(WIDTH):
pos = rc_to_pos(row, col)
card = str(board[pos])
if rowstr == '':
rowstr = card
else:
rowstr_lines = rowstr.split('\n')
card_lines = card.split('\n')
rowstr = ''
for row_line, card_line in zip(rowstr_lines, card_lines):
rowstr += row_line + card_line + "\n"
boardstr += rowstr
return boardstr
colors = [
['bl', 'br', 'bl', 'or'],
['br', 'bl', 'br', 'gr'],
['or', 'br', 'br', 'bl'],
['or', 'or', 'bl', 'gr'],
['br', 'or', 'bl', 'br'],
['or', 'bl', 'gr', 'or'],
['br', 'gr', 'bl', 'gr'],
['or', 'gr', 'gr', 'or'],
['bl', 'gr', 'gr', 'bl'],
]
dirs = [
['o', 'i', 'i', 'o'],
['i', 'i', 'o', 'o'],
['i', 'o', 'o', 'i'],
['i', 'o', 'o', 'i'],
['i', 'i', 'o', 'o'],
['i', 'o', 'o', 'i'],
['o', 'o', 'i', 'i'],
['i', 'i', 'o', 'o'],
['o', 'o', 'i', 'i'],
]
cards = [Card(cols, dirs) for cols, dirs in zip(colors, dirs)]
board = EMPTY_BOARD
s, board = solve(cards, board)
print(counter)
print(photorealism(board))