We will now begin to fill the stub methods with some life. The game loop is a good starting point as it is our driving engine that keeps the game world updating and rendering in a continuous way. After that, we will add some sprites and verify that the updating and rendering mechanism is working fine. In order to manipulate the world and game objects, controls are added to receive and react upon user input. Finally, the
CameraHelper class will be implemented to allow us to move around freely in the game world and to select a game object of our choice that the camera is supposed to follow.
Additions and modifications in code listings will be highlighted.
The game loop will reside in the