def __init__(self, env=None, env_name='', is_image=False):
"""Initializes a GarageEnv.
Args:
env (gym.wrappers.time_limit): A gym.wrappers.time_limit.TimeLimit
object wrapping a gym.Env created via gym.make().
env_name (str): If the env_name is speficied, a gym environment
with that name will be created. If such an environment does not
exist, a `gym.error` is thrown.
is_image (bool): True if observations contain pixel values,
false otherwise. Setting this to true converts a gym.Spaces.Box
obs space to an akro.Image and normalizes pixel values.
"""
# Needed for deserialization
self._env_name = env_name
self._env = env
if env_name:
super().__init__(gym.make(env_name))
else:
super().__init__(env)
self.action_space = akro.from_gym(self.env.action_space)
self.observation_space = akro.from_gym(self.env.observation_space,
is_image=is_image)
self._spec = EnvSpec(action_space=self.action_space,
observation_space=self.observation_space)
def __init__(self, env=None, env_name='', is_image=False):
"""Returns a Garage wrapper class for bullet-based gym.Env.
Args:
env (gym.wrappers.time_limit): A gym.wrappers.time_limit.TimeLimit
object wrapping a gym.Env created via gym.make().
env_name (str): If the env_name is speficied, a gym environment
with that name will be created. If such an environment does not
exist, a `gym.error` is thrown.
is_image (bool): True if observations contain pixel values,
false otherwise. Setting this to true converts a gym.Spaces.Box
obs space to an akro.Image and normalizes pixel values.
"""
if not env:
# 'RacecarZedBulletEnv-v0' environment enables rendering by
# default, while pybullet allows only one GUI connection at a time.
# Setting renders to False avoids potential error when multiple
# of these envs are tested at the same time.
if env_name == 'RacecarZedBulletEnv-v0':
env = gym.make(env_name, renders=False)
else:
env = gym.make(env_name)
# Needed for deserialization
self._env = env
self._env_name = env_name
super().__init__(env)
self.action_space = akro.from_gym(self.env.action_space)
self.observation_space = akro.from_gym(self.env.observation_space,
is_image=is_image)
self._spec = EnvSpec(action_space=self.action_space,
observation_space=self.observation_space)
def __init__(self, env=None, env_name=''):
# Needed for deserialization
self._env_name = env_name
self._env = env
if env_name:
super().__init__(gym.make(env_name))
else:
super().__init__(env)
self.action_space = akro.from_gym(self.env.action_space)
self.observation_space = akro.from_gym(self.env.observation_space)
self.__spec = EnvSpec(action_space=self.action_space,
observation_space=self.observation_space)
def test_convert_image(self):
obj = gym.spaces.Box(low=0, high=255, shape=(3, 3, 3))
img = akro.from_gym(obj, is_image=True)
assert isinstance(img, akro.Image)
assert (img.low == 0).all()
assert (img.high == 255).all()
assert img.shape == obj.shape
def test_convert_box(self):
obj = gym.spaces.Box(0.0, 1.0, (3, 4))
box = akro.from_gym(obj)
assert isinstance(box, akro.Box)
assert (box.low == obj.low).all()
assert (box.high == obj.high).all()
assert box.shape == obj.shape
def __init__(self, env=None, env_name=''):
if env_name:
super().__init__(gym.make(env_name))
else:
super().__init__(env)
self.action_space = akro.from_gym(self.env.action_space)
self.observation_space = akro.from_gym(self.env.observation_space)
if self.spec:
self.spec.action_space = self.action_space
self.spec.observation_space = self.observation_space
else:
self.spec = EnvSpec(action_space=self.action_space,
observation_space=self.observation_space)
Serializable.quick_init(self, locals())
def __init__(self, env, max_obs_dim=None):
super().__init__(env)
self._max_obs_dim = max_obs_dim
action_space = akro.from_gym(self.env.action_space)
observation_space = self._create_rl2_obs_space(env)
self._spec = EnvSpec(action_space=action_space,
observation_space=observation_space)
def __init__(self, env, is_image=False, max_episode_length=None):
"""Initializes a GymEnv.
Note that if `env` and `env_name` are passed in at the same time,
`env` will be wrapped.
Args:
env (gym.Env or str): An gym.Env Or a name of the gym environment
to be created.
is_image (bool): True if observations contain pixel values,
false otherwise. Setting this to true converts a gym.Spaces.Box
obs space to an akro.Image and normalizes pixel values.
max_episode_length (int): The maximum steps allowed for an episode.
Raises:
ValueError: if `env` neither a gym.Env object nor a string.
RuntimeError: if the environment is wrapped by a TimeLimit and its
max_episode_steps is not equal to its spec's time limit value.
"""
self._env = None
if isinstance(env, str):
self._env = gym.make(env)
elif isinstance(env, gym.Env):
self._env = env
else:
raise ValueError('GymEnv can take env as either a string, '
'or an Gym environment, but got type {} '
'instead.'.format(type(env)))
self._max_episode_length = _get_time_limit(self._env,
max_episode_length)
self._render_modes = self._env.metadata['render.modes']
self._step_cnt = None
self._visualize = False
self._action_space = akro.from_gym(self._env.action_space)
self._observation_space = akro.from_gym(self._env.observation_space,
is_image=is_image)
self._spec = EnvSpec(action_space=self.action_space,
observation_space=self.observation_space,
max_episode_length=self._max_episode_length)
# stores env_info keys & value types to ensure subsequent env_infos
# are consistent
self._env_info = None
def __init__(self, env=None, env_name='', is_image=False):
# Needed for deserialization
self._env_name = env_name
self._env = env
if env_name:
print(env_name)
# @TODO fix this line blowing things up
super().__init__(gym.make(env_name))
else:
super().__init__(env)
self.action_space = akro.from_gym(self.env.action_space)
self.observation_space = akro.from_gym(self.env.observation_space,
is_image=is_image)
self.__spec = EnvSpec(action_space=self.action_space,
observation_space=self.observation_space)
def __init__(self, env, max_obs_dim=None, random_init=None):
super().__init__(env)
if random_init is not None:
_env = env
while (not hasattr(_env, 'active_env')):
_env = _env._env
_env.active_env.random_init = random_init
self._max_obs_dim = max_obs_dim
action_space = akro.from_gym(self.env.action_space)
observation_space = self._create_rl2_obs_space(env)
self._spec = EnvSpec(action_space=action_space,
observation_space=observation_space)
def __init__(self, env=None, env_name='', is_image=False):
# Needed for deserialization
self._env_name = env_name
self._env = env
if env_name:
super().__init__(gym.make(env_name))
else:
super().__init__(env)
if isinstance(self.env.action_space, Box):
self.action_space = akro.Box(low=self.env.action_space.low,
high=self.env.action_space.high)
self.observation_space = akro.Image(
shape=self.env.observation_space.shape)
else:
self.action_space = akro.from_gym(self.env.action_space)
self.observation_space = akro.from_gym(self.env.observation_space,
is_image=is_image)
self.__spec = EnvSpec(action_space=self.action_space,
observation_space=self.observation_space)
def __init__(self, env=None, env_name='', is_image=False):
# @TODO fix this line blowing shit up
super().__init__(env, env_name, is_image=is_image)
self.action_space = akro.from_gym(self.env.action_space)
self.observation_space = akro.from_gym(self.env.observation_space,
is_image=is_image)
def test_convert_image_invalid_bounds(self):
obj = gym.spaces.Box(low=0, high=1, shape=(3, 3, 3))
with self.assertRaises(AssertionError):
akro.from_gym(obj, is_image=True)
def observation_space(self):
"""akro.Box: Observation space of this environment."""
return akro.from_gym(self._observation_space)
def test_convert_dict(self):
obj = gym.spaces.Dict({'foo': gym.spaces.Discrete(3)})
dict = akro.from_gym(obj)
assert isinstance(dict, akro.Dict)
def test_convert_discrete(self):
obj = gym.spaces.Discrete(3)
disc = akro.from_gym(obj)
assert isinstance(disc, akro.Discrete)
def __init__(self, env=None, env_name='', is_image=False):
super().__init__(env, env_name, is_image=is_image)
self.action_space = akro.from_gym(self.env.action_space)
self.observation_space = akro.from_gym(self.env.observation_space,
is_image=is_image)
def test_convert_tuple(self):
obj = gym.spaces.Tuple(
(gym.spaces.Discrete(2), gym.spaces.Discrete(3)))
tup = akro.from_gym(obj)
assert isinstance(tup, akro.Tuple)
def __init__(self, spaces):
super().__init__([akro.from_gym(space) for space in spaces])
def observation_space(self):
return akro.from_gym(
Box(low=np.array((self.xlim[0], self.ylim[0])),
high=np.array((self.xlim[1], self.ylim[1])),
shape=None))
def __init__(self, env):
super().__init__(env)
action_space = akro.from_gym(self.env.action_space)
observation_space = self._create_rl2_obs_space()
self._spec = EnvSpec(action_space=action_space,
observation_space=observation_space)
def action_space(self):
return akro.from_gym(
Box(low=-self.vel_bound,
high=self.vel_bound,
shape=(self.dynamics.a_dim, )))
def __init__(self, env=None, env_name=''):
super().__init__(env, env_name)
self.action_space = akro.from_gym(self.env.action_space)
self.observation_space = akro.from_gym(self.env.observation_space)
def __init__(self, spaces=None, **kwargs):
super().__init__(spaces, **kwargs)
self.spaces = (collections.OrderedDict([
(k, akro.from_gym(s)) for k, s in self.spaces.items()
]))