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Game Development Patterns with Unity 2021 - Second Edition

You're reading from  Game Development Patterns with Unity 2021 - Second Edition

Product type Book
Published in Jul 2021
Publisher Packt
ISBN-13 9781800200814
Pages 246 pages
Edition 2nd Edition
Languages
Author (1):
David Baron David Baron
Profile icon David Baron

Table of Contents (22) Chapters

Preface 1. Sections 1: Fundamentals
2. Before We Begin 3. The Game Design Document 4. A Short Primer to Programming in Unity 5. Section 2: Core Patterns
6. Implementing a Game Manager with the Singleton 7. Managing Character States with the State Pattern 8. Managing Game Events with the Event Bus 9. Implement a Replay System with the Command Pattern 10. Optimizing with the Object Pool Pattern 11. Decoupling Components with the Observer Pattern 12. Implementing Power-Ups with the Visitor Pattern 13. Implementing a Drone with the Strategy Pattern 14. Using the Decorator to Implement a Weapon System 15. Implementing a Level Editor with Spatial Partition 16. Section 3: Alternative Patterns
17. Adapting Systems with an Adapter 18. Concealing Complexity with a Facade Pattern 19. Managing Dependencies with the Service Locator Pattern 20. About Packt 21. Other Books You May Enjoy

Benefits and drawbacks of the Observer pattern

These are some of the benefits of the Observer pattern:

  • Dynamism: The Observer permits the Subject to add as many objects as it necessitates as Observers. But it can also remove them dynamically at runtime. 
  • One-to-Many: The main benefit of the Observer pattern is that it elegantly solves the problem of implementing an event handling system in which there's a one-to-many relationship between objects.

The following are some potential drawbacks of the Observer pattern:

  • Disorder: The Observer pattern doesn't guarantee the order in which Observers get notified. So, if two or more Observer objects share dependencies and must work together in a specific sequence, the Observer pattern, in its native form, is not designed to handle that type of execution context. 
  • Leaking: The Observer can cause memory leaks as the subject holds strong references to its observers. If it's implemented incorrectly and the Observer...
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