Search icon CANCEL
Arrow left icon
Explore Products
Best Sellers
New Releases
Books
Videos
Audiobooks
Learning Hub
Conferences
Free Learning
Arrow right icon
Arrow up icon
GO TO TOP
Learning game AI programming with Lua

You're reading from   Learning game AI programming with Lua Leverage the power of Lua programming to create game AI that focuses on motion, animation, and tactics

Arrow left icon
Product type Paperback
Published in Nov 2014
Publisher Packt
ISBN-13 9781783281336
Length 352 pages
Edition 1st Edition
Languages
Arrow right icon
Toc

Table of Contents (11) Chapters Close

Preface 1. Getting Started with AI Sandbox FREE CHAPTER 2. Creating and Moving Agents 3. Character Animations 4. Mind Body Control 5. Navigation 6. Decision Making 7. Knowledge Representation 8. Perception 9. Tactics Index

Agent properties


Now that we can create agents, we're going to take a step back and look at what properties are available to an agent and what they mean.

Orientation

Whenever you need to return the orientation of an agent, it's easiest to use the forward vector that usually represents the direction of movement of an agent. Both the left and up vectors of orientation are available as well. Whenever you need to change an agent's direction, simply set its forward vector.

The forward axis

To access and set the forward vector of our agents, we can use the built-in GetForward and SetForward helper functions.

local forwardVector = agent:GetForward();
Agent.SetForward(agent, forwardVector);

The left axis

We can also access the left orientation vector using the GetLeft helper function.

local leftVector = agent:GetLeft();

The up axis

Accessing the up orientation vector is similarly provided by a GetUp helper function.

local upVector = agent:GetUp();

Location

An agent's position is the center of the mass of its...

lock icon The rest of the chapter is locked
Register for a free Packt account to unlock a world of extra content!
A free Packt account unlocks extra newsletters, articles, discounted offers, and much more. Start advancing your knowledge today.
Unlock this book and the full library FREE for 7 days
Get unlimited access to 7000+ expert-authored eBooks and videos courses covering every tech area you can think of
Renews at €18.99/month. Cancel anytime