def GetFeatureSpace(env):
"""This method extracts the observation feature space from the given environment.
Args:
env (gym.environment): The environment from which the feature space is extracted.
Returns:
FeatureSpace: The feature space with the low and high bounds set
"""
observation = env.reset()
observer = NearestAgentsObserver()
observer._max_num_vehicles = int(len(observation) / 4) - 1
observer.Reset(env._world)
space = list(
np.array([
observer._world_x_range, observer._world_y_range,
observer._ThetaRange, observer._VelocityRange
] * (observer._max_num_vehicles + 1)).transpose())
class FeatureSpace:
"""The feature space wrapper.
"""
def __init__(self, low, high):
"""Constructor
"""
self.high = high
self.low = low
return FeatureSpace(space[0], space[1])
def main():
args = configure_args()
if is_local:
dir_prefix = ""
else:
dir_prefix="hy-iqn-lfd-full-exp.runfiles/hythe/"
logging.info(f"Executing job: {args.jobname}")
logging.info(f"Experiment server at: {os.getcwd()}")
params = ParameterServer(filename=os.path.join(dir_prefix, params_file),
log_if_default=True)
params = configure_params(params, seed=args.jobname)
experiment_id = params["Experiment"]["random_seed"]
params_filename = os.path.join(params["Experiment"]["dir"], "params_{}.json".format(experiment_id))
behavior = BehaviorDiscreteMacroActionsML(params)
evaluator = GoalReached(params)
observer = NearestAgentsObserver(params)
viewer = MPViewer(params=params,
x_range=[-35, 35],
y_range=[-35, 35],
follow_agent_id=True)
# extract params and save experiment parameters
params["ML"]["BaseAgent"]["SummaryPath"] = os.path.join(params["Experiment"]["dir"], "agent/summaries")
params["ML"]["BaseAgent"]["CheckpointPath"] = os.path.join(params["Experiment"]["dir"], "agent/checkpoints")
params.Save(filename=params_filename)
logging.info('-' * 60)
logging.info("Writing params to :{}".format(params_filename))
logging.info('-' * 60)
# database creation
dbs1 = DatabaseSerializer(test_scenarios=1, test_world_steps=2,
num_serialize_scenarios=num_demo_scenarios)
dbs1.process(os.path.join(dir_prefix, "configuration/database"),
filter_sets="**/**/interaction_merging_light_dense_1D.json")
local_release_filename = dbs1.release(version="lfd_offline")
db1 = BenchmarkDatabase(database_root=local_release_filename)
scenario_generator1, _, _ = db1.get_scenario_generator(0)
env = HyDiscreteHighway(params=params,
scenario_generation=scenario_generator1,
behavior=behavior,
evaluator=evaluator,
observer=observer,
viewer=viewer,
render=False)
scenario, _ = scenario_generator1.get_next_scenario()
world = scenario.GetWorldState()
observer.Reset(world)
assert env.action_space._n == 8, "Action Space is incorrect!"
run(args, params, env, db=db1)
params.Save(params_filename)
logging.info('-' * 60)
logging.info("Writing params to :{}".format(params_filename))
logging.info('-' * 60)
