Behavioral Design Patterns in C++ - Introduction-Observer

The video tutorial introduces the observer design pattern, explaining its importance in maintaining consistency between objects in an object-oriented system without tight coupling. Using a game alarm system as an example, it illustrates how the observer pattern allows for flexible interaction between objects, such as alarms and NPCs. The tutorial details the structure of the pattern, involving subjects and observers, and explains the notification process. Advanced concepts like many-to-many dependencies and custom notifications are also discussed.

What is the main purpose of the observer design pattern?

Explain the relationship between the subject and observers in the observer pattern.

How does the observer pattern help in maintaining flexibility in an object-oriented system?

Describe a scenario where the observer pattern could be applied in a game.

What challenges does the observer pattern address regarding object coupling?

In what ways can observers become out of sync with their subjects?

How can notifications be sent only to specific observers in the observer pattern?