How Utility AI Helps NPCs Decide What To Do Next | AI 101
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Sometimes the AI in a videogame has lots of perfectly valid actions it can take, but deciding which one can be quite difficult. Utility AI is one approach to help solve it, by calculating how useful that action is based on the current context. We look at how it works, some simple calculations and how games ranging from @eavideos's 'The Sims', all the way to @CreativeAssembly's 'Total War' series, adopt Utility AI in their games.
[00:00] Intro
[01:02] Why do we need Utility AI?
[04:21] Calculating Utility
[06:39] Utility AI in AAA Games
[14:46] Closing
If you're interested in learning more about Utility AI, check out these reading materials and related links:
"An Introduction to Utility AI Theory" - Game AI Pro v2
http://www.gameaipro.com/GameAIPro/GameAIPro_Chapter09_An_Introduction_to_Utility_Theory.pdf
"Behavior Decision System: Dragon Age Inquisition’s Utility Scoring Architecture" - Game AI Pro v3
http://www.gameaipro.com/GameAIPro3/GameAIPro3_Chapter31_Behavior_Decision_System_Dragon_Age_Inquisition%E2%80%99s_Utility_Scoring_Architecture.pdf
"Intrigue & Betrayal: Diplomacy AI in Total War Three Kingdoms", Csaba Toth and Duygu Cakmak, GDC 2021
"Analysing AI Behaviour in Total War | Creative Assembly and BAFTA Games", Csaba Toth and Duygu Cakmak
https://www.youtube.com/watch?v=2NM78eM_yME&ab_channel=CreativeAssembly
All music in this video is from TeknoAxe
http://www.teknoaxe.com
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