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Unity 3.x Scripting

Volodymyr Gerasimov , Devon Kraczla

Write efficient, reusable scripts to build custom characters, game environments, and control enemy AI in your Unity game with this book and ebook.
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Book Details

ISBN 139781849692304
Paperback292 pages

About This Book

  • Make your characters interact with buttons and program triggered action sequences
  • Create custom characters and code dynamic objects and players’ interaction with them
  • Synchronize movement of character and environmental objects
  • Add and control animations to new and existing characters
  • Written in simple and step-by-step format with real life examples, this book is the only one in the market to focus on Unity Scripting


Who This Book Is For

If you are a programmer interested in developing games using Unity and want to customize your game by writing scripts, then this is a book for you. To make the best use of this book, you will have to know your way around Unity. The book is ideal for someone, who has experience in building games using Unity and knows a bit of programming; especially JavaScript. However, if you are a programmer in any other language, you should be able to grasp the book fairly easily.

Table of Contents

Chapter 1: Diving into Scripting
Downloading and installing assets for this book
Getting started with the game
Available Character Controllers
Interactive objects
Dynamic objects
Chapter 2: Custom Character Controller
Creating a controllable character
Custom Character Controller
Animation controls
Chapter 3: Action Game Essentials
Programming weapons and pickables
Advanced animation system
Weapon pickup
Adding ammo and health pickups
Creating a treasure chest
Applying projectile fixes
Tethering and soft body
Chapter 4: Drag-and-Drop Inventory
GUI basics
Drag-and-drop inventory
Character customization
Chapter 5: Dynamic GUI
Radial health display
Creating items
Creating armor
Creating the weapons
Scripting and displaying the score system
Displaying the objectives
Creating the targeting system
Chapter 6: Game Master Controller
Game manager theory
Creating game managers
Dynamic camera
Audio manager
Chapter 7: Introduction to AI Pathfinding and Behaviors
Simple waypoint pathfinding
Enemy statistics, shooting, and behaviors
Returning to the aiSimplePath script
The bulletCollision, ammoCollision, and AmmoInfo scripts

What You Will Learn

  • Use available scripts that readers can use to create default character controller
  • Attach default character controller scripts to an existing game object
  • Set-up your own camera and character controller rigs through code
  • Code dynamic and static objects like bio gun, ammo, health, character stat augmentation, treasure chests and make your character interact with them
  • Create character item slots along with inventories, where players will be able to drag and drop different item icons in the inventory slots
  • Attach existing animation scripts to characters and objects and create new ones
  • Assign and equip selected items on a player or object, making them active and useable like adding fire functionality to a bio gun
  • Create and maintain scores to control character objectives and save game data
  • Setup a system to control transition between scenes and transferring objects from one scene to another along with instantiation for characters
  • Deal with 2D and 3D parallax backgrounds
  • Create an audio game controller to fix sound overlapping and create background audio stems
  • Basics of enemy AI, such as path-finding and creating distinct enemy behavior and their awareness


In Detail

Unity is a powerful tool for anyone who aspires to build interesting and sellable games. One of the exciting aspects of Unity is how easily it can be extended to build custom characters and game environments. Scripting is the key to accomplish all this, but it comes with a steep learning curve.

This book will teach you everything you need to know about scripting in Unity. It will take you through creating, including and tweaking scripts for achieving various tasks. Some of these tasks include controlling characters, animations, controlling objects, handling game data and enemy AI.

The book will begin by building scripts for simple tasks and continue to develop them for increasing level of difficulty. The first few chapters include scripting to build a custom game environment and creating characters and controlling them. Arranging camera views, controlling and creating animations are covered in the next set of chapters.

The book then moves on to build objects, animate them and code character interaction with them and create inventories where the characters can pick ammo, health and other such objects. Towards the end, the book teaches how to add background sound and discusses basic enemy AI scripting.


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