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Unreal Engine 4 AI Programming Essentials

You're reading from   Unreal Engine 4 AI Programming Essentials Create responsive and intelligent game AI using Blueprints in Unreal Engine 4

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Product type Paperback
Published in Mar 2016
Publisher
ISBN-13 9781784393120
Length 188 pages
Edition 1st Edition
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Authors (2):
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Jie Feng Jie Feng
Author Profile Icon Jie Feng
Jie Feng
Peter Newton Peter Newton
Author Profile Icon Peter Newton
Peter Newton
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Table of Contents (11) Chapters Close

Preface 1. Introduction to Game AI FREE CHAPTER 2. Creating Basic AI 3. Adding Randomness and Probability 4. Introducing Movement 5. Giving AI Choices 6. How Does Our AI Sense? 7. More Advanced Movement 8. Creating Patrol, Chase, and Attack AI 9. What Have We Learned? Index

Pawn detection


To give our pawn the most up-to-date information, we need to create an event that will catch and respond to the sensory update events from the AI Perception component. We will establish this by creating a new event that is solely responsible for processing detected pawns. Here are the steps:

  1. Let's right-click anywhere and go under Add Event. From there, we want to add a custom event, and we will name the new event Detected Enemies. We have to also create a new actor array parameter named Detected Actors to hold the array of Updated Actors.

  2. Now, in the next step, we need to recompile a blueprint to call the AIController and the Detected Enemies function from our OnPerceptionUpdated event:

  3. In the next steps, we will handle the transitions between different states. For example, we can be in the default state and find a new enemy. From there, we need to stop the current movement and move toward the detected enemy. If we lose sight of an enemy that we've been chasing for a specific...

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