adding comments in car models

demo/demo7.py

+# SM: Noting some things about the example
+
 from dryvr_plus_plus.example.example_agent.car_agent import CarAgent, NPCAgent
 from dryvr_plus_plus.example.example_agent.car_agent import CarAgent
 from dryvr_plus_plus.scene_verifier.scenario.scenario import Scenario

dryvr_plus_plus/example/example_agent/car_agent.py

+# Example agent.
 from typing import Tuple, List
 
 import numpy as np 
@@ -23,6 +24,8 @@ class NPCAgent(BaseAgent):
         return [x_dot, y_dot, theta_dot, v_dot]
 
     def action_handler(self, mode, state, lane_map:LaneMap)->Tuple[float, float]:
+        ''' Computes steering and acceleration based on current lane, target lane and
+            current state using a Stanley controller-like rule'''
         x,y,theta,v = state
         vehicle_mode = mode[0]
         vehicle_lane = mode[1]

tests/testdpp.py

@@ -62,7 +62,7 @@ class TestSimulatorMethods(unittest.TestCase):
         self.car2 = CarAgent('other', file_name='example_controller1.py')
         self.scenario.add_agent(self.car)
         self.scenario.add_agent(self.car2)
-        # self.scenario.add_map(SimpleMap2())
+        self.scenario.add_map(SimpleMap2())
         # self.scenario.set_sensor(FakeSensor1())
         # self.scenario.set_init(
         #     [[0, 3, 0, 0.5]],