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import curses
from curses import wrapper
import random
winning_boards = {
"classic": [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16],
"odds/evens": [1,3,5,7,9,11,13,15,2,4,6,8,10,12,14,16],
"odds/evens (alt)": [1,3,5,7,2,4,6,8,9,11,13,15,10,12,14,16],
"spiral": [7,8,9,10,6,1,2,11,5,4,3,12,16,15,14,13]
}
board = [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16]
moves = ['u', 'd', 'l', 'r']
def init_board(rand_moves):
# make a number of random moves
for i in range(0,rand_moves):
r = random.choice(moves)
if r is 'u':
do_up()
elif r is 'd':
do_down()
elif r is 'l':
do_left()
elif r is 'r':
do_right()
# True if we've won, False if not
def has_won(wb):
if board == wb:
return True
return False
# returns the index of the blank tile
def blank():
return board.index(16)
# Move validity
def can_down():
return blank() // 4 != 0
def can_up():
return blank() // 4 != 3
def can_right():
return blank() % 4 != 0
def can_left():
return blank() % 4 != 3
# perform a move
def move(offset):
oc = blank()
ov = board[oc]
tc = blank() + offset
tv = board[tc]
board[oc] = tv
board[tc] = ov
def do_right():
if can_right():
move(-1)
return True
return False
def do_left():
if can_left():
move(1)
return True
return False
def do_down():
if can_down():
move(-4)
return True
return False
def do_up():
if can_up():
move(4)
return True
return False
def choose_board(stdscr):
# headers
stdscr.addstr(0, 0, "{:~^56}".format("Fifteen Puzzle"), curses.A_BOLD)
stdscr.addstr(2, 0, "{:^21}".format("Choose a board"))
# print the first winning board
idx = 0
board_names = list(winning_boards.keys())
print_board_left(stdscr,winning_boards[board_names[idx]],"{:^21}".format(board_names[idx]))
stdscr.refresh()
while 1:
c = stdscr.getch()
if c == curses.KEY_LEFT:
if idx > 0:
idx -= 1
print_board_left(stdscr,winning_boards[board_names[idx]], "{:^21}".format(board_names[idx]))
stdscr.refresh()
elif c == curses.KEY_RIGHT:
if idx < len(board_names) - 1:
idx += 1
print_board_left(stdscr,winning_boards[board_names[idx]], "{:^21}".format(board_names[idx]))
stdscr.refresh()
elif c == ord('p'):
return winning_boards[board_names[idx]]
elif c == ord('q'):
return None
stdscr.getkey()
# main method
def main(stdscr):
# choose a board
bc = choose_board(stdscr)
if bc is None:
exit()
# set up a board with 400 random moves
init_board(400)
mvs = 0
print_board(stdscr, mvs, bc)
# loop until someone presses "q"
while 1:
# move based on input
c = stdscr.getch()
if c == curses.KEY_LEFT or c == ord('h'):
if do_left():
mvs = mvs + 1
elif c == curses.KEY_RIGHT or c == ord('l'):
if do_right():
mvs = mvs + 1
elif c == curses.KEY_UP or c == ord('k'):
if do_up():
mvs = mvs + 1
elif c == curses.KEY_DOWN or c == ord('j'):
if do_down():
mvs = mvs + 1
elif c == ord('q'):
break
# print the new board
print_board(stdscr, mvs, bc)
# print an empty board
def print_empty_board(stdscr, y, x):
# print the first line of dashes
stdscr.addstr(y,x*5,"{:-^21}".format(""), curses.A_BOLD)
# empty squares
for i in range(1,5):
for j in range(0,5):
stdscr.addstr((i+y), (j+x)*5, "|", curses.A_BOLD)
# print the last line of dashes
stdscr.addstr((5+y), x*5,"{:-^21}".format(""), curses.A_BOLD)
# print the tiles of a board
def print_board_tiles(stdscr, b, y, x):
# create the color pairs
curses.init_pair(1, curses.COLOR_RED, curses.COLOR_WHITE)
curses.init_pair(2, curses.COLOR_WHITE, curses.COLOR_RED)
# put in numbers
ocnt = y+1
icnt = (x*5)+1
for i,v in enumerate(b):
# odds get one color, evens the other
if v % 2 == 1:
stdscr.addstr(ocnt,icnt,"{:^4}".format(v), curses.color_pair(1))
elif v == 16:
# blank tile gets no coloring
stdscr.addstr(ocnt,icnt,"{:^4}".format(""))
else:
stdscr.addstr(ocnt,icnt,"{:^4}".format(v), curses.color_pair(2))
# update counts
if (i+1) % 4 == 0:
ocnt = ocnt + 1
icnt = (x*5) + 1
else:
icnt = icnt + 5
# print a board on the left hand side of the screen
def print_board_left(stdscr, b, cap):
print_empty_board(stdscr, 3, 0)
print_board_tiles(stdscr, b, 3, 0)
stdscr.addstr(9, 0, cap)
# print a board on the left hand side of the screen
def print_board_right(stdscr, b, cap):
print_empty_board(stdscr, 3, 7)
print_board_tiles(stdscr, b, 3, 7)
stdscr.addstr(9, 35, cap)
# print the full boards
def print_board(stdscr, mvs, wb):
# clear screen
stdscr.clear()
# headers
stdscr.addstr(0, 0, "{:~^56}".format("Fifteen Puzzle"), curses.A_BOLD)
stdscr.addstr(2, 0, "{:^21}".format("Play"))
stdscr.addstr(2, 35, "{:^21}".format("Target"))
# print play board
print_board_left(stdscr, board, "{} moves".format(str(mvs)))
# print target board
print_board_right(stdscr, wb, "Have we won? {}".format(str(has_won(wb))))
# refresh the screen
stdscr.refresh()
# wrap the main method in the curses wrapper
wrapper(main)
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