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

Optional factory variations

Like the Factory Method pattern, abstract factories have useful variations that you’ll see pop up in the programming wilds. The two we’ll talk about in the following subsections are the parameterized abstract and Concrete Factory, and the factory of factories (so meta).

Parameterized factories

Firstly, the parameterized Abstract Factory is almost identical to the parameterized Factory Method variation we built in the last chapter. The idea is to have the methods in any Abstract Factory class take a parameter value specifying which object to create and return. For example, we could update the recipe factory to take a string name and use a switch statement inside each method to return the correct object, as shown in the following code:

This isn’t the most scalable approach but adding reflection or generics can greatly increase how flexible the parameterized factory can be. Again, we covered this extensively in Chapter...