def __init__(self, board_col, board_row, mode, win_length=4):
global NONE, PLAYER1, PLAYER2
self.BOARD_COLUMNS = board_col
self.BOARD_ROWS = board_row
self.WINNING_LENGTH = win_length
self.turn = PLAYER1
self.winner = NONE
self.board = self._new_game_board()
self.firstMove = True
self.mode = mode
self.moveindex = 1
#===========================================================
# Input AI here?
#===========================================================
if mode == 2:
self.ai = BasicAi(PLAYER2, self.board, len(self.board), self.firstMove)
if mode == 3:
self.firstMove1 = True
self.ai1 = AdvAi(PLAYER1, self.board, len(self.board), self.firstMove1)
#self.ai1 = TrueAlphaAi(PLAYER1, self.board, len(self.board), self.firstMove1)
self.firstMove2 = True
self.ai2 = BasicAi(PLAYER2, self.board, len(self.board), self.firstMove2)
class ConnectFourGame:
def __init__(self, board_col, board_row, mode, win_length=4):
global NONE, PLAYER1, PLAYER2
self.BOARD_COLUMNS = board_col
self.BOARD_ROWS = board_row
self.WINNING_LENGTH = win_length
self.turn = PLAYER1
self.winner = NONE
self.board = self._new_game_board()
self.firstMove = True
self.mode = mode
self.moveindex = 1
#===========================================================
# Input AI here?
#===========================================================
if mode == 2:
self.ai = BasicAi(PLAYER2, self.board, len(self.board), self.firstMove)
if mode == 3:
self.firstMove1 = True
self.ai1 = AdvAi(PLAYER1, self.board, len(self.board), self.firstMove1)
#self.ai1 = TrueAlphaAi(PLAYER1, self.board, len(self.board), self.firstMove1)
self.firstMove2 = True
self.ai2 = BasicAi(PLAYER2, self.board, len(self.board), self.firstMove2)
#self.ai2 = RandomAi(PLAYER1, self.board, len(self.board), self.firstMove2)
def _new_game_board(self):
global NONE, PLAYER1, PLAYER2
self.board = []
for col in range(self.BOARD_COLUMNS):
self.board.append([])
for row in range(self.BOARD_ROWS):
self.board[-1].append(NONE)
return self.board
def _col_check(self, col):
if type(col) != int or not 0 <= col < self.BOARD_COLUMNS:
raise ValueError('column number must be int between 0 and {}'.format(self.BOARD_COLUMNS - 1))
def _row_check(self, row):
if type(row) != int or not 0 <= row < self.BOARD_ROWS:
raise ValueError('column number must be int between 0 and {}'.format(self.BOARD_COLUMNS - 1))
def check_winner_exist(self):
global NONE, PLAYER1, PLAYER2
if self.winning_player() != NONE:
return True
return False
def check_within_boundary(self, col, row):
return 0 <= col < self.BOARD_COLUMNS and 0 <= row < self.BOARD_ROWS
def check_empty(self, col, row):
''' check if a tile is empty, return True if it is empty; this can be used by AI to check available moves '''
if self.board[col][row] == NONE:
return True
else:
return False
def turn(self):
global NONE, PLAYER1, PLAYER2
if (self.turn == NONE):
return "NONE"
elif (self.turn == PLAYER1):
return "PLAYER1"
else:
return "PLAYER2"
def drop_piece_without_ai(self, column_number, row_number):
global NONE, PLAYER1, PLAYER2
self._col_check(column_number)
self._row_check(row_number)
if (not self.check_empty(column_number, row_number)):
raise ValueError('row ' + str(row_number) + ', column ' + str(column_number) + ' has been taken')
self.board[column_number][row_number] = self.turn
self._opposite_turn()
self.moveindex = self.moveindex + 1
def drop_piece(self, column_number=None, row_number=None):
''' drop a piece on the board'''
global NONE, PLAYER1, PLAYER2
if (column_number != None and row_number != None):
if (not self.check_empty(column_number, row_number)):
raise ValueError('row ' + str(row_number) + ', column ' + str(column_number) + ' has been taken')
if self.mode == 1:
self.drop_piece_without_ai(column_number, row_number)
elif self.mode == 2:
if (self.moveindex % 2):
self.drop_piece_without_ai(column_number, row_number)
else:
(row, col) = self.ai.make_move(self.board, len(self.board))
self.drop_piece_without_ai(col, row)
self.firstMove = False
elif self.mode == 3:
if (self.moveindex % 2):
(row, col) = self.ai1.make_move(self.board, len(self.board))
self.drop_piece_without_ai(col, row)
self.firstMove1 = False
else:
(row, col) = self.ai2.make_move(self.board, len(self.board))
self.drop_piece_without_ai(col, row)
self.firstMove2 = False
def winning_player(self):
''' get winnner, if no winner, return NONE '''
global NONE, PLAYER1, PLAYER2
winner = NONE
for col in range(self.BOARD_COLUMNS):
for row in range(self.BOARD_ROWS):
if self._winning_sequence_begins_at(col, row):
if winner == NONE:
winner = self.board[col][row]
else:
self._opposite_turn()
self.winner = winner
return self.winner
def print_board(self):
''' print the board in console '''
print('\n'.join([''.join(['{:3}'.format(item) for item in row]) for row in self.board]))
print ('\n')
def _find_empty_row_number_in_column(self, column_number):
global NONE, PLAYER1, PLAYER2
for i in range(self.BOARD_ROWS - 1, -1, -1):
if self.board[column_number][i] == NONE:
return i
return -1
def _opposite_turn(self):
global PLAYER1, PLAYER2
if self.turn == PLAYER1:
self.turn = PLAYER2
return
else:
self.turn = PLAYER1
return
def _winning_sequence_begins_at(self, col, row):
return self._check_sequence_in_a_row(col, row, 0, 1) \
or self._check_sequence_in_a_row(col, row, 1, 1) \
or self._check_sequence_in_a_row(col, row, 1, 0) \
or self._check_sequence_in_a_row(col, row, 1, -1) \
or self._check_sequence_in_a_row(col, row, 0, -1) \
or self._check_sequence_in_a_row(col, row, -1, -1) \
or self._check_sequence_in_a_row(col, row, -1, 0) \
or self._check_sequence_in_a_row(col, row, -1, 1)
def _check_sequence_in_a_row(self, col, row, coldelta, rowdelta):
global NONE, PLAYER1, PLAYER2
start_cell = self.board[col][row]
if start_cell == NONE:
return False
else:
for i in range(1, self.WINNING_LENGTH):
if not 0 <= col + coldelta * i < self.BOARD_COLUMNS \
or not 0 <= row + rowdelta * i < self.BOARD_ROWS \
or self.board[col + coldelta * i][row + rowdelta * i] != start_cell:
return False
return True
