def test_game_parameters_from_string_with_options(self):
self.assertEqual(
pyspiel.game_parameters_from_string("foo(x=2,y=true)"), {
"name": pyspiel.GameParameter("foo"),
"x": pyspiel.GameParameter(2),
"y": pyspiel.GameParameter(True)
})
def test_game_parameters_from_string_with_options(self):
self.assertEqual(
pyspiel.game_parameters_from_string("foo(x=2,y=true)"), {
"name": "foo",
"x": 2,
"y": True
})
def test_game_parameters_from_string_with_subgame(self):
self.assertEqual(
pyspiel.game_parameters_from_string(
"foo(x=2,y=true,subgame=bar(z=False))"), {
"name": "foo",
"x": 2,
"y": True,
"subgame": {
"name": "bar",
"z": False
}
})
def test_leduc_info_state_as_single_tensor(self):
game = pyspiel.load_game("leduc_poker")
observation = make_observation(
game, INFO_STATE_OBS_TYPE,
pyspiel.game_parameters_from_string("single_tensor"))
state = game.new_initial_state()
state.apply_action(1) # Deal 1
state.apply_action(2) # Deal 2
state.apply_action(2) # Bet
state.apply_action(1) # Call
state.apply_action(3) # Deal 3
observation.set_from(state, player=0)
self.assertEqual(list(observation.dict), ["info_state"])
np.testing.assert_array_equal(observation.dict["info_state"], [
1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0
])
def test_game_parameters_from_string_simple(self):
self.assertEqual(pyspiel.game_parameters_from_string("foo"),
{"name": pyspiel.GameParameter("foo")})
def test_game_parameters_from_string_empty(self):
self.assertEqual(pyspiel.game_parameters_from_string(""), {})
def playthrough_lines(game_string, alsologtostdout=False, action_sequence=None,
observation_params_string=None):
"""Returns a playthrough of the specified game as a list of lines.
Actions are selected uniformly at random, including chance actions.
Args:
game_string: string, e.g. 'markov_soccer' or 'kuhn_poker(players=4)'.
alsologtostdout: Whether to also print the trace to stdout. This can be
useful when an error occurs, to still be able to get context information.
action_sequence: A (possibly partial) list of action choices to make.
observation_params_string: Optional observation parameters for constructing
an observer.
"""
should_display_state_fn = ShouldDisplayStateTracker()
lines = []
action_sequence = action_sequence or []
should_display = True
def add_line(v, force=False):
if force or should_display:
if alsologtostdout:
print(v)
lines.append(v)
game = pyspiel.load_game(game_string)
add_line("game: {}".format(game_string))
if observation_params_string:
add_line("observation_params: {}".format(observation_params_string))
seed = np.random.randint(2**32 - 1)
game_type = game.get_type()
default_observation = None
try:
observation_params = pyspiel.game_parameters_from_string(
observation_params_string) if observation_params_string else None
default_observation = make_observation(
game,
imperfect_information_observation_type=None,
params=observation_params)
except (RuntimeError, ValueError):
pass
infostate_observation = None
# TODO(author11) reinstate this restriction
# if game_type.information in (pyspiel.IMPERFECT_INFORMATION,
# pyspiel.ONE_SHOT):
try:
infostate_observation = make_observation(
game, pyspiel.IIGObservationType(perfect_recall=True))
except (RuntimeError, ValueError):
pass
public_observation = None
try:
public_observation = make_observation(
game,
pyspiel.IIGObservationType(
public_info=True,
perfect_recall=False,
private_info=pyspiel.PrivateInfoType.NONE))
except (RuntimeError, ValueError):
pass
private_observation = None
try:
private_observation = make_observation(
game,
pyspiel.IIGObservationType(
public_info=False,
perfect_recall=False,
private_info=pyspiel.PrivateInfoType.SINGLE_PLAYER))
except (RuntimeError, ValueError):
pass
add_line("")
add_line("GameType.chance_mode = {}".format(game_type.chance_mode))
add_line("GameType.dynamics = {}".format(game_type.dynamics))
add_line("GameType.information = {}".format(game_type.information))
add_line("GameType.long_name = {}".format('"{}"'.format(game_type.long_name)))
add_line("GameType.max_num_players = {}".format(game_type.max_num_players))
add_line("GameType.min_num_players = {}".format(game_type.min_num_players))
add_line("GameType.parameter_specification = {}".format("[{}]".format(
", ".join('"{}"'.format(param)
for param in sorted(game_type.parameter_specification)))))
add_line("GameType.provides_information_state_string = {}".format(
game_type.provides_information_state_string))
add_line("GameType.provides_information_state_tensor = {}".format(
game_type.provides_information_state_tensor))
add_line("GameType.provides_observation_string = {}".format(
game_type.provides_observation_string))
add_line("GameType.provides_observation_tensor = {}".format(
game_type.provides_observation_tensor))
add_line("GameType.provides_factored_observation_string = {}".format(
game_type.provides_factored_observation_string))
add_line("GameType.reward_model = {}".format(game_type.reward_model))
add_line("GameType.short_name = {}".format('"{}"'.format(
game_type.short_name)))
add_line("GameType.utility = {}".format(game_type.utility))
add_line("")
add_line("NumDistinctActions() = {}".format(game.num_distinct_actions()))
add_line("PolicyTensorShape() = {}".format(game.policy_tensor_shape()))
add_line("MaxChanceOutcomes() = {}".format(game.max_chance_outcomes()))
add_line("GetParameters() = {{{}}}".format(",".join(
"{}={}".format(key, _escape(str(value)))
for key, value in sorted(game.get_parameters().items()))))
add_line("NumPlayers() = {}".format(game.num_players()))
add_line("MinUtility() = {:.5}".format(game.min_utility()))
add_line("MaxUtility() = {:.5}".format(game.max_utility()))
try:
utility_sum = game.utility_sum()
except RuntimeError:
utility_sum = None
add_line("UtilitySum() = {}".format(utility_sum))
if infostate_observation and infostate_observation.tensor is not None:
add_line("InformationStateTensorShape() = {}".format(
format_shapes(infostate_observation.dict)))
add_line("InformationStateTensorLayout() = {}".format(
game.information_state_tensor_layout()))
add_line("InformationStateTensorSize() = {}".format(
len(infostate_observation.tensor)))
if default_observation and default_observation.tensor is not None:
add_line("ObservationTensorShape() = {}".format(
format_shapes(default_observation.dict)))
add_line("ObservationTensorLayout() = {}".format(
game.observation_tensor_layout()))
add_line("ObservationTensorSize() = {}".format(
len(default_observation.tensor)))
add_line("MaxGameLength() = {}".format(game.max_game_length()))
add_line('ToString() = "{}"'.format(str(game)))
players = list(range(game.num_players()))
state = game.new_initial_state()
state_idx = 0
rng = np.random.RandomState(seed)
while True:
should_display = should_display_state_fn(state)
add_line("", force=True)
add_line("# State {}".format(state_idx), force=True)
for line in str(state).splitlines():
add_line("# {}".format(line).rstrip())
add_line("IsTerminal() = {}".format(state.is_terminal()))
add_line("History() = {}".format([int(a) for a in state.history()]))
add_line('HistoryString() = "{}"'.format(state.history_str()))
add_line("IsChanceNode() = {}".format(state.is_chance_node()))
add_line("IsSimultaneousNode() = {}".format(state.is_simultaneous_node()))
add_line("CurrentPlayer() = {}".format(state.current_player()))
if infostate_observation:
for player in players:
s = infostate_observation.string_from(state, player)
if s is not None:
add_line(f'InformationStateString({player}) = "{_escape(s)}"')
if infostate_observation and infostate_observation.tensor is not None:
for player in players:
infostate_observation.set_from(state, player)
for name, tensor in infostate_observation.dict.items():
label = f"InformationStateTensor({player})"
label += f".{name}" if name != "info_state" else ""
for line in _format_tensor(tensor, label):
add_line(line)
if default_observation:
for player in players:
s = default_observation.string_from(state, player)
if s is not None:
add_line(f'ObservationString({player}) = "{_escape(s)}"')
if public_observation:
s = public_observation.string_from(state, 0)
if s is not None:
add_line('PublicObservationString() = "{}"'.format(_escape(s)))
for player in players:
s = private_observation.string_from(state, player)
if s is not None:
add_line(f'PrivateObservationString({player}) = "{_escape(s)}"')
if default_observation and default_observation.tensor is not None:
for player in players:
default_observation.set_from(state, player)
for name, tensor in default_observation.dict.items():
label = f"ObservationTensor({player})"
label += f".{name}" if name != "observation" else ""
for line in _format_tensor(tensor, label):
add_line(line)
if game_type.chance_mode == pyspiel.GameType.ChanceMode.SAMPLED_STOCHASTIC:
add_line('SerializeState() = "{}"'.format(_escape(state.serialize())))
if not state.is_chance_node():
add_line("Rewards() = {}".format(state.rewards()))
add_line("Returns() = {}".format(state.returns()))
if state.is_terminal():
break
if state.is_chance_node():
add_line("ChanceOutcomes() = {}".format(state.chance_outcomes()))
if state.is_simultaneous_node():
for player in players:
add_line("LegalActions({}) = [{}]".format(
player, ", ".join(str(x) for x in state.legal_actions(player))))
for player in players:
add_line("StringLegalActions({}) = [{}]".format(
player, ", ".join('"{}"'.format(state.action_to_string(player, x))
for x in state.legal_actions(player))))
if state_idx < len(action_sequence):
actions = action_sequence[state_idx]
else:
actions = [rng.choice(state.legal_actions(pl)) for pl in players]
add_line("")
add_line("# Apply joint action [{}]".format(
format(", ".join(
'"{}"'.format(state.action_to_string(player, action))
for player, action in enumerate(actions)))), force=True)
add_line("actions: [{}]".format(", ".join(
str(action) for action in actions)), force=True)
state.apply_actions(actions)
else:
add_line("LegalActions() = [{}]".format(", ".join(
str(x) for x in state.legal_actions())))
add_line("StringLegalActions() = [{}]".format(", ".join(
'"{}"'.format(state.action_to_string(state.current_player(), x))
for x in state.legal_actions())))
if state_idx < len(action_sequence):
action = action_sequence[state_idx]
else:
action = rng.choice(state.legal_actions())
add_line("")
add_line('# Apply action "{}"'.format(
state.action_to_string(state.current_player(), action)), force=True)
add_line("action: {}".format(action), force=True)
state.apply_action(action)
state_idx += 1
return lines
