In the previous chapter, Chapter 4, Moving Your Player with Controller Input, you learned how to capture basic input from the player and enable them to navigate the game world with both the keyboard and the OUYA controller. Methods of processing input as well as everything else you've learned in this book so far are techniques that aren't just applicable to OUYA games; game logic such as player input and cameras are present in every game, and Unity projects can be deployed to many more platforms other than Android, such as iOS, Windows, OS X, and BlackBerry. However, certain features exist exclusively in the OUYA API that you can program to make full use of the console, as you'll discover in this chapter.

One of the OUYA's unique features is the touchpad on all OUYA controllers. By default, the touchpad functions as a basic mouse cursor that can be moved around the screen by dragging a finger across the touchpad surface. This is available...