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Learning C# by Developing Games with Unity

You're reading from   Learning C# by Developing Games with Unity Get to grips with coding in C# and build simple 3D games in Unity 2023 from the ground up

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Product type Paperback
Published in Nov 2022
Publisher Packt
ISBN-13 9781837636877
Length 466 pages
Edition 7th Edition
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Author (1):
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Harrison Ferrone Harrison Ferrone
Author Profile Icon Harrison Ferrone
Harrison Ferrone
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Table of Contents (18) Chapters Close

Preface 1. Getting to Know Your Environment FREE CHAPTER 2. The Building Blocks of Programming 3. Diving into Variables, Types, and Methods 4. Control Flow and Collection Types 5. Working with Classes, Structs, and OOP 6. Getting Your Hands Dirty with Unity 7. Movement, Camera Controls, and Collisions 8. Scripting Game Mechanics 9. Basic AI and Enemy Behavior 10. Revisiting Types, Methods, and Classes 11. Specialized Collection Types and LINQ 12. Saving, Loading, and Serializing Data 13. Exploring Generics, Delegates, and Beyond 14. The Journey Continues 15. Pop Quiz Answers
16. Other Books You May Enjoy
17. Index

Understanding reference and value types

Other than keywords and initial field values, we haven't seen much difference between classes and structs so far. Classes are best suited for grouping together complex actions and data that will change throughout a program; structs are a better choice for simple objects and data that will remain constant for the most part. Besides their uses, they are fundamentally different in one key area—that is, how they are passed or assigned between variables. Classes are reference types, meaning that they are passed by reference; structs are value types, meaning that they are passed by value.

Reference types

When the instances of our Character class are initialized, the hero and heroine variables don't hold their class information—instead, they hold a reference to where the object is located in the program's memory. If we assigned hero or heroine to another variable in the same class, the memory reference is assigned, not the...

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