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

What's a struct?

Structs are similar to classes in that sense they are also blueprints for objects you want to create in your programs. The main difference is that they are value types—meaning they are passed by value instead of reference, such as classes. We'll go into this in detail in the next section.First, we need to understand how structs work and the specific rules that apply when creating them.

Basic syntax

Structs are declared the same way as classes, and can hold fields, methods, and constructors:

accessModifier struct UniqueName 

However, structs have a few limitations:

  • Variables cannot be initialized with values inside the struct declaration, unless they're marked with the static or const modifier—you can read more about this in Chapter 10, Revisiting Types, Methods, and Classes.
  • Constructors without parameters aren't permitted.
  • ...