Chapter 11

1. Overriding a private virtual function allows modification of the behavior of the class by keeping its public interface untouched.
2. It's a behavioral design pattern in which an object encapsulates an action and all the information required to perform the action.
3. By sharing data with other objects as much as possible. When we have a lot of objects with a similar structure, sharing repeated data across objects minimizes the use of memory.
4. The observer notifies subscriber objects regarding an event, while the mediator plays the role of a connection hub between intercommunicating objects.
5. Designing the game loop as an infinite loop is reasonable because, theoretically, the game might never end and only end when the player commands it to.