You're reading from Learning Design Patterns with Unity Learn the secret of popular design patterns while building fun, efficient games in Unity 2023 and C#

Product type Paperback

Published in May 2024

Publisher Packt

ISBN-13 9781805120285

Length 676 pages

Edition 1st Edition

Languages

Tools

Unity

Concepts

Design Patterns

Author (1):

Harrison Ferrone

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Table of Contents (23) Chapters

Preface

1. Priming the System

2. Managing Access with the Singleton Pattern FREE CHAPTER

3. Spawning Enemies with the Prototype Pattern

4. Creating Items with the Factory Method Pattern

5. Building a Crafting System with the Abstract Factory Pattern

6. Assembling Support Characters with the Builder Pattern

7. Managing Performance and Memory with Object Pooling

8. Binding Actions with the Command Pattern

9. Decoupling Systems with the Observer Pattern

10. Controlling Behavior with the State Pattern

11. Adding Features with the Visitor Pattern

12. Swapping Algorithms with the Strategy Pattern

13. Making Monsters with the Type Object Pattern

14. Taking Data Snapshots with the Memento Pattern

15. Dynamic Upgrades with the Decorator Pattern

16. Converting Incompatible Classes with the Adapter Pattern

17. Simplifying Subsystems with the Façade Pattern

18. Generating Terrains with the Flyweight Pattern

19. Global Access with the Service Locator Pattern

20. The Road Ahead

21. Other Books You May Enjoy

22. Index

Creating related but independent products

Imagine you’re building an action platformer with two main crafting systems, one for regular items, armor, and weapons, and another for special fusion products. Each crafting system needs to have the same basic capabilities for buying, selling, crafting, and disassembling items. On top of that, your team needs to be able to interact with each crafting system through a common set of interfaces but be able to switch them out at any time without breaking existing code (whenever new DLC comes out, I’m guessing).

Scripting product interfaces

The first component of the Abstract Factory pattern is the abstract product interfaces. In our example, we not only have two different sets of capabilities – buying/selling and crafting/disassembling, which leads to a nice (and sensible) separation of interfaces for our factories – we’ll let the merchant products handle buying and selling, and the blacksmith products...