add draw trigger of traffic lights

PythonAPI/examples/no_rendering_mode.py

@@ -979,6 +979,8 @@ class ModuleWorld(object):
             if self.hero_actor is not None:
                 corners = Util.get_bounding_box(tl)
                 corners = [world_to_pixel(p) for p in corners]
+                if self.show_triggers:
+                    pygame.draw.lines(surface, COLOR_CHAMELEON_0, True, corners, 2)
                 tl_t = tl.get_transform()
 
                 transformed_tv = tl_t.transform(tl.trigger_volume.location)