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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Index

Creating Items with the Factory Method Pattern

In the last chapter, we built an enemy-spawning system using the Prototype pattern, Unity prefabs, and C# generics. In this chapter, we’ll learn how the Factory Method pattern not only lets you specify a common interface for any objects you’re creating but also lets the subclass decide the actual class being instantiated. Think of games you’ve played or built that used NPCs – wouldn’t it be nice if there was a mechanism that could create NPCs using a single underlying class but that could also defer the concrete type (a quest giver or random village person) that rolls off the assembly line? Well, that’s exactly what the Factory Method pattern does!

Before we dive in any further, we should talk about two design patterns related to factories: the Factory Method and Abstract Factory patterns. The Factory Method pattern allows you to make objects without specifying the exact class being instantiated...