Now you need to implement a basic user interface for the few features that you'll be adding to the game (and some that you will add yourself when you finish the game, I hope). Earlier in this chapter, you removed two Dialog variables that were used to make the user interface for the empty project sample. Now you add back a new Dialog variable to create your own user interface:
// User interface for the game private Dialog gameUI = null;
Of course, you need to instantiate this object somewhere, so find the constructor of the KartRacers class and add the creation code there:
gameUI = new Dialog(sampleFramework);
Regardless of what controls you end up having within this dialog, you need to have it rendered at some ...