This assignment tests your understanding of inheritance, polymorphism, interfaces, and abstract classes. The program is a simulator of city streets, traffic lights, and vehicles. Road Rage Start Stop Step Reset FPS Debug Mode 0 10 20 30 40 50 60 Your task is to write the classes to model the various vehicles in the city. The classes will have many similarities, so you should use inheritance to design the classes effectively. The starter code for the project includes a complete and correct graphical user interface (GUI). The GUI shows pictures for the map terrain and vehicles. The GUI loads the city map and vehicle starting positions from the provided file city_map.txt. There are buttons to start and stop the city's animation, as well as to step through it one frame at a time and to reset the vehicles to their initial layout. Each time the GUI redraws, it moves each of the vehicles. If any two vehicles end up on the same square, the GUI tells the vehicles that they have collided with each other, which may "kill" them temporarily. "Dead" vehicles appear upside down on the screen. The rate of city animation is controllable via a slider at the bottom of the interface. Also, debug information can be shown using a checkbox. If debug information is enabled, all (x, y) grid positions on the map are labeled, and every vehicle's toString output is shown next to the vehicle. You can put any information you like into your vehicles' toString methods to help you debug their behavior. ) (14, 14) (15, 14) (1614) (17,14) (18. Debug Mode Bicycle