Book Image

Unity 2021 Cookbook - Fourth Edition

By : Shaun Ferns
Book Image

Unity 2021 Cookbook - Fourth Edition

By: Shaun Ferns

Overview of this book

If you are a Unity developer looking to explore the newest features of Unity 2021 and recipes for advanced challenges, then this fourth edition of Unity Cookbook is here to help you. With this cookbook, you’ll work through a wide variety of recipes that will help you use the essential features of the Unity game engine to their fullest potential. You familiarize yourself with shaders and Shader Graph before exploring animation features to enhance your skills in building games. As you progress, you will gain insights into Unity's latest editor, which will help you in laying out scenes, tweaking existing apps, and building custom tools for augmented reality and virtual reality (AR/VR) experiences. The book will also guide you through many Unity C# gameplay scripting techniques, teaching you how to communicate with database-driven websites and process XML and JSON data files. By the end of this Unity book, you will have gained a comprehensive understanding of Unity game development and built your development skills. The easy-to-follow recipes will earn a permanent place on your bookshelf for reference and help you build better games that stay true to your vision.
Table of Contents (15 chapters)
Free Chapter
2
Responding to User Events for Interactive UIs
3
Inventory and Advanced UIs
6
2D Animation and Physics
13
Advanced Topics - Gizmos, Automated Testing, and More
15
Virtual and Augmented Reality (VR/AR)

PlayMode and unit testing a player health bar with events, logging, and exceptions

In this recipe, we will combine many different kinds of tests for a feature tha's included in many games a visual health bar representing the player's numeric health value (in this case, a float number from 0.0 to 1.0). Although far from comprehensively testing all the aspects of the health bar, this recipe will provide a good example of how we can go about testing many different parts of a game using the Unity Testing tools.

A Unity package has been provided that contains the following:

  • Player.cs: A player script class for managing values for player health that uses delegates and events to publish health changes to any listening View classes.
  • Two View classes that register to listen for player health change events:
    • HealthBarDisplay.cs: This updates fillAmount for a UI Image for each new player health value that's received.
    • HealthChangeLogger.cs: This prints messages about...