Book Image

Hands-On Artificial Intelligence with Unreal Engine

By : Francesco Sapio
Book Image

Hands-On Artificial Intelligence with Unreal Engine

By: Francesco Sapio

Overview of this book

Learning how to apply artificial intelligence ( AI ) is crucial and can take the fun factor to the next level, whether you're developing a traditional, educational, or any other kind of game. If you want to use AI to extend the life of your games and make them challenging and more interesting, this book is for you. The book starts by breaking down AI into simple concepts to get a fundamental understanding of it. Using a variety of examples, you will work through actual implementations designed to highlight key concepts and features related to game AI in UE4. You will learn to work through the built-in AI framework in order to build believable characters for every game genre (including RPG, Strategic, Platform, FPS, Simulation, Arcade, and Educational). You will learn to configure the Navigation, Environmental Querying, and Perception systems for your AI agents and couple these with Behavior Trees, all accompanied with practical examples. You will also explore how the engine handles dynamic crowds. In the concluding chapters, you will learn how to profile, visualize, and debug your AI systems to correct the AI logic and increase performance. By the end of the book, your AI knowledge of the built-in AI system in Unreal will be deep and comprehensive, allowing you to build powerful AI agents within your projects.
Table of Contents (19 chapters)
Free Chapter
1
Section 1: The Unreal Framework
9
Section 2: Designing and Implementing Behavior Trees
13
Section 3: Debugging Methods
14
Debugging Methods for AI - Logging

Profiling AI

When it comes to profiling, Unreal offers many solutions and tools. This section explores some that are related to AI.

In particular, we will see how it is possible to visualize stats directly from the console and how to create a custom stat group. At the end of this section, we will mention the Session Frontend tool.

Profiling with the console

The most used profiling tool is activating stats through the console, because it is very quick and you can track performance in real time. In fact, just typing stats game into the console makes a whole page of stats appear on the screen:

Here are all the stats that appear:

As you can see, there's a lot of information, but it is quite general, since it tracks the...