Refactoring (env -> worlds)

high_level_policy_main.py

-from env.simple_intersection import SimpleIntersectionEnv
-from env.simple_intersection.constants import *
+from worlds.simple_intersection import SimpleIntersectionEnv
+from worlds.simple_intersection.constants import *
 from options.options_loader import OptionsGraph
 from backends.kerasrl_learner import DQNLearner
 import os

low_level_policy_main.py

-from env.simple_intersection import SimpleIntersectionEnv
-from env.simple_intersection.constants import *
+from worlds.simple_intersection import SimpleIntersectionEnv
+from worlds.simple_intersection.constants import *
 from options.options_loader import OptionsGraph
 from backends.kerasrl_learner import DDPGLearner
 from rl.callbacks import Callback

mcts.py

-from env.simple_intersection import SimpleIntersectionEnv
-from env.simple_intersection.constants import DT
+from worlds.simple_intersection import SimpleIntersectionEnv
+from worlds.simple_intersection.constants import DT
 from options.options_loader import OptionsGraph
 from backends import DDPGLearner, DQNLearner, MCTSLearner
 import numpy as np

options/simple_intersection/maneuver_base.py

 import numpy as np
 import gym
-import env.simple_intersection.road_geokinemetry as rd
-from env.simple_intersection.constants import DT, MAX_ACCELERATION, MAX_STEERING_ANGLE_RATE, MAX_STEERING_ANGLE
-from env import EpisodicEnvBase
+import worlds.simple_intersection.road_geokinemetry as rd
+from worlds.simple_intersection.constants import DT, MAX_ACCELERATION, MAX_STEERING_ANGLE_RATE, MAX_STEERING_ANGLE
+from worlds import EpisodicEnvBase
 
 
 class ManeuverBase(EpisodicEnvBase):

options/simple_intersection/maneuvers.py

 from .maneuver_base import ManeuverBase
-from env.simple_intersection.constants import *
-import env.simple_intersection.road_geokinemetry as rd
-from env.simple_intersection.features import extract_ego_features, extract_other_veh_features
+from worlds.simple_intersection.constants import *
+import worlds.simple_intersection.road_geokinemetry as rd
+from worlds.simple_intersection.features import extract_ego_features, extract_other_veh_features
 from verifier.simple_intersection import LTLProperty
 
 import numpy as np

ppo2_training.py

-from env.simple_intersection import SimpleIntersectionEnv
-from env.simple_intersection.constants import *
+from worlds.simple_intersection import SimpleIntersectionEnv
+from worlds.simple_intersection.constants import *
 from options.options_loader import OptionsGraph
 from backends.baselines_learner import PPO2Agent