def test_move_first(self):
''' Make sure the AI cannot lose when it goes first by testing all
possible game combinations. '''
board = Board()
player = AIPlayer(True, board)
# Let the AI go first
player.next_move()
self._test_all_moves(board, player)
def _test_all_moves(self, board, player):
# Try each possible move
for move in board.open_moves():
# Try a move, then let the AI go again
new_board = Board(board.x_first)
new_board._state = board._state
new_board.move(move, not player.player)
if(self._game_over(new_board)):
continue
new_player = AIPlayer(player.player, new_board)
new_player.next_move()
if(self._game_over(new_board)):
continue
self._test_all_moves(new_board, new_player)
