class Game:
__white_turn = True
__dimensions = 8
__castling_moves = ["O-O", "O-O-O"]
def __init__(self,
print_board_after_move=False,
print_move_result=False,
always_persist_board_state=True,
show_recent_moves=False):
"""
Instantiates the game of chess. Pass parameters as needed to suit your liking
:param print_board_after_move: False by default
:param print_move_result: False by default
:param always_persist_board_state: True by default
:param show_recent_moves: False by default
"""
self.visualiser = Visualiser()
self.board = Board()
self.__game_logger = GameLogger()
self.__game_history = GameHistory()
# Game options. Refer to variable names for the acronym meanings
self.__pbam = print_board_after_move
self.__pmr = print_move_result
self.__apbs = always_persist_board_state
self.__srm = show_recent_moves
# Persist initial state
if self.__apbs:
self.persist_state_to_file()
def visualise(self):
"""
Visualise the board in console. No budget for a 3D cheeseboard here, a charcuterie might be cheaper
:return: void
"""
self.visualiser.print(self.board)
def persist_state_to_file(self):
self.__game_logger.state_to_file(self.board)
def persist_move_to_file(self, origin, destination=None):
self.__game_logger.action_to_file(origin, destination)
def move(self, origin, destination=None):
"""
Move the piece if it is valid
:param origin:
:param destination:
:return: the result of the move
"""
result = None
# Filter out non-standard moves except castling
if destination is None and origin not in self.__castling_moves:
return MoveStatus.ERR_UNRECOGNISED
if origin in self.__castling_moves:
king_side = True if origin == "O-O" else False
if self.__apbs:
# Get our pieces for later use before they move
origin_piece = self.get_castling_piece()
destination_piece = self.get_castling_piece(king_side, False)
""" Run castling move"""
castle_result = self.board.castle(self.__white_turn, king_side)
if castle_result is MoveStatus.OK_CASTLED:
# Invert current turn if move was successful
self.__white_turn = not self.__white_turn
result = castle_result
else:
# Convert atlas coordinates to cartesian coordinates
cartesian_origin = self.atlas_to_cartesian_coordinates(origin)
origin_piece = self.board.who_is_in(*cartesian_origin)
cartesian_destination = self.atlas_to_cartesian_coordinates(
destination)
destination_piece = self.board.who_is_in(*cartesian_destination)
""" Run normal actions """
move = self.board.move(*cartesian_origin, *cartesian_destination,
self.__white_turn)
if move.value > 0:
# Invert current turn if move was successful
self.__white_turn = not self.__white_turn
result = move
if result.value > 0:
""" Run needed subroutines if we have a successful move """
separator = "-" if result is not MoveStatus.OK_KILL else "x"
final_destination = separator + destination if destination is not None else ""
# Print a shoddy chessboard as needed
if self.__pbam:
self.visualise()
# Log and print this movement
if self.__srm:
self.__game_history.log(not self.__white_turn, origin,
destination)
self.print_recent_moves()
# Persist file if set
if self.__apbs:
self.persist_move_to_file(origin_piece, destination_piece)
# Print move result irregardless if successful or not
if self.__pmr:
print(result)
# Give a nice separator if some game settings are up
if self.__pbam or self.__pmr or self.__srm:
print(("=" * 100) + "\n\n\n")
return result
def get_castling_piece(self, king_side=True, king=True):
"""
Function to return the pieces involved when castling.
:param king_side: Determines which matching rook to get. Has no effect if king is true
:param king: Always returns the king unless specified
:return: Piece either Rook or King. May return None if no piece is in position
"""
x = 4
y = 7 if self.__white_turn else 0
if not king:
""" Looking for our rook """
x = 7 if king_side == "O-O" else 0
return self.board.who_is_in(*[x, y])
def print_recent_moves(self):
"""
Print recent moves by both players in a horizontal fashion
:return:
"""
print('.' * 100)
self.__game_history.nice_print_history()
print('.' * 100)
def atlas_to_cartesian_coordinates(self, cell):
"""
Convert atlas grid coordinate to cartesian coordinates
:param cell: Cell coordinates to translate
:return: List consisting of x and y coordinates
"""
cell = list(cell)
cell[0] = self.translate_a(cell[0]) # X
cell[1] = abs(int(cell[1]) - self.__dimensions) # Y
return cell
def translate_a(self, letter):
"""
Translate a(tlas) coordinate alphabet to its zero-indexed numeric value
:param letter: letter to translate
:return: integer
"""
return self.visualiser.coordinate_map.index(letter.lower())
state = Board([5, 0, 2, 1, 4, 3, 6, 7, 8], 3)
potential_states = [state]
visited_states = []
max_depth = 2
start = time.time()
# while not state == Board([1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 0], 4):
while state.board != state.goal:
state = potential_states.pop(0)
if state in visited_states:
continue
if state.empty_space() < state.size * (state.size - 1):
new_state = state.move("UP")
inserted = False
for i in range(len(potential_states)):
if new_state.h1_and_h2 < potential_states[i].h1_and_h2:
potential_states.insert(i, new_state)
inserted = True
break
if not inserted:
potential_states.append(new_state)
if state.empty_space() >= state.size:
new_state = state.move("DOWN")
inserted = False
for i in range(len(potential_states)):
if new_state.h1_and_h2 < potential_states[i].h1_and_h2:
potential_states.insert(i, new_state)