Book Image

Unreal Engine 4 AI Programming Essentials

By : Jie Feng, Peter Newton
Book Image

Unreal Engine 4 AI Programming Essentials

By: Jie Feng, Peter Newton

Overview of this book

Unreal Engine is a powerful game development engine that provides rich functionalities to create 2D and 3D games. Developers have the opportunity to build cross-platform mobile and desktop games from scratch. This book will show you how to apply artificial intelligence (AI) techniques to your Unreal project using blueprints as your scripting language. You will start with an introduction to AI, and learn how it is applied to gaming. Then you'll jump right in and create a simple AI bot and apply basic behaviors to allow it to move randomly. As you progress, you'll find out how to implement randomness and probability traits. Using NavMesh, you will impart navigation components such as character movement, MoveTo nodes, settings, and world objects, and implement Behavior Trees. At the end of the book, you will troubleshoot any issues that might crop up while building the game.
Table of Contents (16 chapters)
Unreal Engine 4 AI Programming Essentials
Credits
About the Authors
About the Reviewer
www.PacktPub.com
Preface
Index

Chapter 5. Giving AI Choices

In this chapter, you will learn how to introduce autonomous behavior into your characters using Behavior Tree. Behavior Tree is a methodology that allows you to view your AI logic visually. Behavior Tree is a type of hierarchical task network resulting in a state-oriented design. So, each state will dictate our current task instead of a goal.

This chapter will cover:

  • Behavior Tree

  • Blackboard

  • The components of Behavior Tree, including Selector, Decorator, Service, and so on

  • Building a Behavior Tree to run on a dog character