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

Swapping Algorithms with the Strategy Pattern

In the last chapter, we used the Visitor pattern to apply different behavior to objects without changing the underlying object itself. In this chapter, we’re going to explore how the Strategy pattern lets us configure classes with interchangeable algorithms (or behaviors) at runtime. Not only is this a fantastic way to define different variants of a given algorithm but also your client code doesn’t need to worry about each algorithm’s internal state or data dependencies.

I love this pattern because we use strategies in real life all the time! Think of the moments before you leave the house – it’s always a good idea to check the weather to decide whether you need a coat if it’s cold, an umbrella if it’s going to rain, or extra sunblock if it’s scorching hot. Each possibility has its own strategy (cold weather, stormy weather, or hot weather), but you can choose whichever one fits...