Summary

In this chapter, we saw the usefulness of the Observer pattern, a fundamental design pattern for decoupling objects and enhancing the flexibility and maintainability of code. We began by exploring the core concept of the Observer pattern, which allows objects, referred to as observers, to be notified and updated automatically when the state of another object, known as the subject, changes. This pattern is particularly useful in scenarios where multiple objects need to be aware of state changes without being tightly coupled to the subject. This allows us to create a more modular and loosely coupled design.

We then examined a practical implementation of the Observer pattern in the context of game development using Godot Engine. By implementing this pattern, we created a system where various game elements, such as UI components and game entities, can react to changes in the game state seamlessly. This decoupling ensures that modifications to one part of the game do not necessitate...