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Before We Begin

Welcome to the second edition of Hands-On Game Development Patterns with Unity; this edition is not merely a revision of the previous version, but a complete upgrade of the original book. After the first edition came out, I was fortunate to get a lot of constructive feedback, which inspired me to improve the structure of this new edition. As we will review in the following sections, this book concentrates on the "hands-on" aspect of the title; in other words, we are going to get our hands dirty and work on implementing systems and features for a fully playable prototype of a game with design patterns. This new approach to the book's structure will be more tangible and also more enjoyable. It's more fun to work on a playable game than with random code examples. So, before we begin, in the following sections, I will establish specific parameters to the book's content and overall approach.

Let's quickly review the topics we are going to see in this chapter, as follows:

Notes about the new edition
The philosophy of the book
What are design patterns?
Which subjects aren't covered in this book?
The game project

The game project

Throughout this book, we will be working continuously on a single game project example. The working title of the game is Edge Racer. As the title may indicate, it's a racing game; to be more specific, it's a futuristic racing game in which the player drives high-speed motorcycles. We will review the core concepts of the game in more detail in Chapter 2, The Game Design Document. But before continuing, I wish to list the reasons I decided on a racing game instead of another type of game—for example, a role-playing game (RPG)—as follows:

Simplicity: Racing games have a simple premise—get to the finish line as fast as possible without crashing. Because this book is not about game design but game programming, I wanted a simple type of game that will permit us to focus on learning about software design patterns and not get bogged down with the implementation details of complex game mechanics.
Fun: I've worked on various games of many different genres, and I always found that racing games are the most fun to develop because they are enjoyable to test. In racing games, you can speed-run to specific parts of the game and quickly reproduce bugs or test new features. Unlike other games with deep game mechanics and large maps, such as RPGs, racing games are usually quicker to debug.
Performance: The main challenge of programming a racing game is maintaining a consistent frame rate as you add more features and content. So, I find working on racing games forces you to maintain good game-programmer habits by always keeping an eye on how fast your code is running and not just making it more readable.
Personal: There's also a personal reason for me choosing a racing game—it's because it's my favorite genre. I love playing racing games and I love making them.

In conclusion, the game industry produces various products in many genres and sub-genres, but a racing game is a good reference point for us to start learning about design patterns in Unity because it's a simple context and forces us to keep an eye on keeping code clean and fast.

Key benefits

Gain a comprehensive overview of Unity engine architecture and coding model

Build a complete racing game using software design patterns and understand how to implement them in Unity

Download the source code of the complete prototype demonstrating each of the software patterns used

Description

This book is written for every game developer ready to tackle the bigger picture and start working with advanced programming techniques and design patterns in Unity. Game Development Patterns with Unity 2021 is an introduction to the core principles of reusable software patterns and how to employ them to build components efficiently. In this second edition, you'll tackle design patterns with the help of a practical example; a playable racing game prototype where you’ll get to apply all your newfound knowledge. Notable updates also include a game design document (GDD), a Unity programming primer, and the downloadable source code of a complete prototype. Your journey will start by learning about overall design of the core game mechanics and systems. You’ll discover tried-and-tested software patterns to code essential components of a game in a structured manner, and start using classic design patterns to utilize Unity's unique API features. 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 book, the way you develop Unity games will change – you’ll adapt a more structured, scalable, and optimized process that will help you take the next step in your career.

What you will learn

Structure professional Unity code using industry-standard development patterns

Identify the right patterns for implementing specific game mechanics or features

Develop configurable core game mechanics and ingredients that can be modified without writing a single line of code

Review practical object-oriented programming (OOP) techniques and learn how they re used in the context of a Unity project

Build unique game development systems such as a level editor

Explore ways to adapt traditional design patterns for use with the Unity API

What do you get with Print?

Instant access to your digital eBook copy whilst your Print order is Shipped

Paperback book shipped to your preferred address

Download this book in EPUB and PDF formats

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IvanDBeltran Mar 13, 2022

I've been studying this book for 3 or 4 weeks, and it has been extremely helpful. Thanks to the book I have a better understanding not only of the patterns described in the book, but also their practical application within the context of game development in unity.I liked the way the author started with core patterns and progressively moved the reader to the "Alternative patterns". I must confess that before reading the book I'd apply the same singleton pattern at any opportunity, now I feel that I have the tools to evaluate more consciously the requirements of the project/task and implement a pattern/solution more suitable. Being a somewhat complex topic (at least for me), I appreciate that the length of each chapter is not excessive, giving the readers a good amount of information without making them feel overwhelmed.That said, I wish there were implementations of the patterns covered in more than 1 context. In my experience, I only master knowledge when I apply the same principle more than once in different situations. Besides, sometimes I felt I was just copying a lot of code without actually getting the solutions myself. For further editions it would be super beneficial to have challenges in which the reader has to apply the knowledge acquired and then check the author's solution. My solution was to find those different contexts and create the challenges myself, so no big deal, just a suggestion.Overall, the book covers the most important and most used patterns for game development. A solid understanding of data types, interfaces and events is necessary to get the most of the text. It is a great starting point to understand the basics of design patterns, giving the readers the tools to keep expanding their knowledge in this fascinating topic.

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Dekel Sep 24, 2021

If you're a Unity developer who want to expand his knowledge about game programming, this is the book for you!In this book you can learn how to make your code maintainable, flexible and well organized using different design patterns, and and the big plus is that you get to build actual project while learning.I have enjoyed the learning process and actually managed to implement some of the patterns in my personal projects.Very recommended!

yash Oct 27, 2021

Excellent, engaging, and error-free. Great care has been taken to avoid assumptions and I found that if I had a problem, it was my issue, always reread his words and got there.It is highly recommended for people who are starting out as game developer and gives a good understanding of developing with c#

Jarvis Hill Sep 11, 2021

If you've ever created a program where the removal of several lines of code or entire script could jeopardize the stability of the entire, or if you've ever run into any performance issues due to your code then this book is for you. This book is filled with a bunch of great design patterns that help you decouple your code to prevent dependencies. This book also helps you make your code more flexible, modular, and help you boost your performance. The Singleton pattern helps you create a central point to access other scripts. State Pattern allows you to create multiple modular states. The Command Pattern allows you to store, execute, undo, and redo previous actions. The Object Pool Pattern helps you boost your performance by returning objects to the pool for reuse. Those were just a few of the 13 patterns found in this book.The one thing I love is that there is a ton of examples everywhere in this book. You will get code examples for every design type. I would keep this book on hand as reference material.

Roshan Sep 21, 2021

Very nice book to get an introduction into unityI've read through the book and now have a good base understanding about the basic concepts to get started with unity dame development.

Game Development Patterns with Unity 2021: Explore practical game development using software design patterns and best practices in Unity and C# , Second Edition

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Game Development Patterns with Unity 2021

Notes about the new edition

The philosophy of the book

What are design patterns?

Which subjects aren't covered in this book?

The game project

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