Q) I notice we have coded quite a few functions of the Player class that we don't use.

A) Rather than keep coming back to the Player class, we have added the entire code that we will need throughout the project. By the end of Chapter 11, Sound Effects, File I/O, and Finishing the Game, we will have made full use of all the functions.

Q) I have learnt other languages and OOP seems much simpler in C++.

A) This was an introduction to OOP and its basic fundamentals. There is more to it than this. We will learn more OOP concepts and details throughout the book.