game.get_sequence() result like on sgf file

[sugizo]

game.play(4, 4)
game.play(4, 15)
game.play(15, 15)
print(game.get_sequence())

result

[<sente.Move B[dd]>, <sente.Move W[do]>, <sente.Move B[oo]>]

expected result like on sgf file, more human readable

B[dd];W[do];B[oo]

question
how to achieve it in sente ?

thanks and best regards,

[atw1020]

the functionality you are looking for would come from using loads and dumps ("load string" and "dump string"). As per the documentation, sente.get_sequence() returns a python list of move objects. This list of moves can be sliced, reversed or passed through any other sort of list manipulation. A list of moves can be played using the play_sequence() method.

>>> sequence = game.get_sequence()
>>> first_five_moves = sequence[:5]
>>> last_2_moves = sequence[-2:]
>>> reversed = sequence[::-1]

[sugizo]

the code on initial issue is the shortest one, here what i want to achieve

def random_player(game):
    move = random.choice(list(game.get_legal_moves() ) )
    return move

def play_game(player1, player2):
    game = sente.Game(9, sente.rules.JAPANESE)
    try:
        while not game.is_over():
            move = random_player(game)
            game.play(move)
            clear_output(wait = True)
            print(game)
    except KeyboardInterrupt:
        msg = "Game interrupted!"
        return (None, msg, game)
    file_sgf = "sgf/sente-random_player.sgf"
    sgf.dump(game, file_sgf)
    print('Winner :', game.get_winner() )
    print('Game Sequence :', game. get_sequence() )

it works but not expected,
expected result on the last line, make it more human readable like on sgf file

best regards

[atw1020]

What you want to do is use sgf.dumps(game) instead of game.get_sequence(). dumps will give you the plain text of the SGF file.

[atw1020]

Full code with the change

def random_player(game):
    move = random.choice(list(game.get_legal_moves() ) )
    return move

def play_game(player1, player2):
    game = sente.Game(9, sente.rules.JAPANESE)
    try:
        while not game.is_over():
            move = random_player(game)
            game.play(move)
            clear_output(wait = True)
            print(game)
    except KeyboardInterrupt:
        msg = "Game interrupted!"
        return (None, msg, game)
    file_sgf = "sgf/sente-random_player.sgf"
    sgf.dump(game, file_sgf)
    print('Winner :', game.get_winner() )
    print('Game Sequence :', sgf.dumps(game))

[sugizo]

already tested before
print('Game Sequence :', sgf.dumps(game))

result
the content of *.sgf file

expected result
just the sequence, like mention on initial issue above
B[dd];W[do];B[oo]

think like *.pgn on chess, sometime others want to learn the sequence move of players,
the headers info (size of board [9, 13, 19], rules (jp, zh, kr), game result, winner (black or white) ) is needed as an extra info

in python chess module https://pypi.org/project/chess/, it can be achieve using
print(game.mainline_moves() )

[atw1020]

I think this is what you should do as a workaround then:

def move_str(move):
	"""

	translates a move into a string

	:param move: move to translate into a string
	:returns: string representation of the move
	"""

	color = move.get_color()
	x = move.get_x()
	y = move.get_y()

	if x >= ord("i"):
		x += 1
	if y >= ord("i"):
		y += 1

	return color + "[" + chr(x) + chr(y) + "]"

you can then apply the function to the entire list and join the new list with semicolons.

>>> sequence = game.get_sequence()
>>> sequence = [move_to_str(move) for move in sequence]
>>> print(";".join(sequence))

When I get the chance I will make it so that calling str on a move will implement the function listed above. This should work in the meantime.

[atw1020]

Fixed in sente v0.4.2