Book Image

Game Development Patterns with Unity 2021 - Second Edition

By : David Baron
Book Image

Game Development Patterns with Unity 2021 - Second Edition

By: David Baron

Overview of this book

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.
Table of Contents (22 chapters)
1
Sections 1: Fundamentals
5
Section 2: Core Patterns
16
Section 3: Alternative Patterns
20
About Packt

Designing an enemy drone

The enemy drones in our game are not very smart; there is no artificial intelligence running behind the scene. These are robots with robotic behaviors, and it's common in video games to have enemies with predictable automated behaviors running in a loop. For instance, the Goombas in the original Super Mario Bros just walk in one direction; they are not aware of the presence of Mario or react to him. They are simply running an algorithm to make them wander in a path until they collide with an obstacle. Alone, they are not a threat, but if they are put in a formation or positioned at a point in the map in which navigation is difficult, they can become challenging to avoid.

We will be using the same approach for our enemy drones. Individually, they are easy to defeat because they can't change their behaviors based on the player's movements, but in a squad, they can be challenging to avoid. 

Our drone has three distinct attack maneuvers; each revolves...