Book Image

Learning C# by Developing Games with Unity 2019. - Fourth Edition

By : Harrison Ferrone
Book Image

Learning C# by Developing Games with Unity 2019. - Fourth Edition

By: Harrison Ferrone

Overview of this book

Learning to program in today’s technical landscape can be a daunting task, especially when faced with the sheer number of languages you have to choose from. Luckily, Learning C# with Unity 2019 removes the guesswork and starts you off on the path to becoming a confident, and competent, programmer using game development with Unity. You’ll start off small by learning the building blocks of programming, from variables, methods, and conditional statements to classes and object-oriented systems. After you have the basics under your belt you’ll explore the Unity interface, creating C# scripts, and translating your newfound knowledge into simple game mechanics. Throughout this journey, you’ll get hands-on experience with programming best practices and macro-level topics such as manager classes and flexible application architecture. By the end of the book, you’ll be familiar with intermediate C# topics like generics, delegates, and events, setting you up to take on projects of your own.
Table of Contents (20 chapters)
Free Chapter
Section 1: Programming Foundations and C#
Section 2: Scripting Game Mechanics in Unity
Section 3: Leveling Up Your C# Code

Introducing generics

All our code so far has been very specific in terms of defining and using types. However, there will be cases when you need a class or method to treat its entities in the same way, no matter their type, while still being type-safe. Generic programming allows us to create reusable classes, methods, and variables using a placeholder rather than a concrete type.

When a generic class instance is created or a method is used, a concrete type will be assigned, but the code itself treats it as a generic type. You'll see generic programming most often in custom collection types that need to be able to perform the same operations on elements regardless of type. While this might not conceptually make sense yet, it will once when we look at a concrete example in the next section.

We've already seen this in action with list, which is a generic type itself. We can access all its addition, removal, and modification functions no matter whether it...