In this chapter, we will learn how to handle user input in a generic way and later expand it to be either a virtual joystick, sensors, or an external controller.
To get a visual feedback of the input, we will be placing a spaceship on the screen and moving it around. We will also make it fire some bullets. This will also help you understand the interaction between the game objects and the game engine.
We will extend the generic
InputController class to make the simplest keypad controller possible to understand how the class fits in the existing architecture and how the input is processed and read inside the game objects.
Once we get the basic keypad working, we will implement a virtual joystick, which is a much better ...