Add debug rendering (#12)

Author: tonyvanriet

python_example/python_example.py

@@ -23,14 +23,17 @@ def get_output(self, packet: GameTickPacket) -> SimpleControllerState:
         if steer_correction_radians > 0:
             # Positive radians in the unit circle is a turn to the left.
             turn = -1.0  # Negative value for a turn to the left.
+            action_display = "turn left"
         else:
             turn = 1.0
+            action_display = "turn right"
 
         self.controller_state.throttle = 1.0
         self.controller_state.steer = turn
 
-        return self.controller_state
+        draw_debug(self.renderer, my_car, packet.game_ball, action_display)
 
+        return self.controller_state
 
 class Vector2:
     def __init__(self, x=0, y=0):
@@ -68,3 +71,11 @@ def get_car_facing_vector(car):
     facing_y = math.cos(pitch) * math.sin(yaw)
 
     return Vector2(facing_x, facing_y)
+
+def draw_debug(renderer, car, ball, action_display):
+    renderer.begin_rendering()
+    # draw a line from the car to the ball
+    renderer.draw_line_3d(car.physics.location, ball.physics.location, renderer.white())
+    # print the action that the bot is taking
+    renderer.draw_string_3d(car.physics.location, 2, 2, action_display, renderer.white())
+    renderer.end_rendering()