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)
21
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22
Index

Breaking down the Memento pattern

As part of the Behavioral family of design patterns, the Memento pattern is all about saving an object’s internal state data at a point in time without breaking the object’s encapsulation. The Memento pattern is useful when:

  • You need to save a snapshot of an object’s internal state (data) so it can be easily restored later.
  • You need to keep the target object’s internal state and implementation encapsulated.

This sounds a little too computer science-y even for me, so let’s break down the Memento pattern into more relatable chunks. Imagine you go on a dream vacation you’ve been planning for years. While on said fantastic vacation, you take pictures, buy souvenirs, and get a nasty sunburn, thus capturing the all-around good time you’re having (current internal state). When you get home, the mail is stacked up to the ceiling, you discover that a pipe burst in your bathroom while...