Book Image

Learning Design Patterns with Unity

By : Harrison Ferrone
Book Image

Learning Design Patterns with Unity

By: Harrison Ferrone

Overview of this book

Struggling to write maintainable and clean code for your Unity games? Look no further! Learning Design Patterns with Unity empowers you to harness the fullest potential of popular design patterns while building exciting Unity projects. Through hands-on game development, you'll master creational patterns like Prototype to efficiently spawn enemies and delve into behavioral patterns like Observer to create reactive game mechanics. As you progress, you'll also identify the negative impacts of bad architectural decisions and understand how to overcome them with simple but effective practices. By the end of this Unity 2023 book, the way you develop Unity games will change. You'll emerge not just as a more skilled Unity developer, but as a well-rounded software engineer equipped with industry-leading design patterns.
Table of Contents (23 chapters)
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22
Index

Breaking down the Observer pattern

As part of the behavioral family of design patterns, the Observer pattern is all about communication between objects while keeping the objects sending information decoupled from the receiving objects. The Observer pattern lets you notify any listeners of specific state changes (changing values) or events (the player enters a battle) without tightly coupled references between those objects. I’m sure you can think of at least five situations where this would be an awesome boost to your code, but the Observer pattern is most useful when:

  • You have an object that needs to broadcast information or changes to a variety of other objects.
  • You have an object with a changing state and don’t know how many other objects need to stay up to date.
  • You want to avoid tight coupling between objects that share a dependency.

I like to think of this as a downstream operation, with the start of a river branching off into multiple...