AI perception

Resources

• https://zomgmoz.tv/unreal/AI-Perception/
• AI Perception Types
• AI Senses

Teams

See Perception Detection by Affiliation and IGenericTeamAgentInterface

How stimuli works

At the end of UAIPerceptionSystem::Tick, the perception system will iterate ListenerContainer. If the entry is valid and bHasStimulusToProcess (in FPerceptionListener) is true we call FPerceptionListener::ProcessStimuli, which calls UAIPerceptionComponent::ProcessStimuli.

This will iterate StimuliToProcess and eventually call the available delegates. At the end AAIController::ActorsPerceptionUpdated is called.

Miscs

Disable Pawn auto register as stimulus source

In your DefaultGame.ini add the following:

[/Script/AIModule.AISense_Sight]
bAutoRegisterAllPawnsAsSources=false

Forget target actors if stimulus expired

Enable bForgetStaleActors in AISystem project settings.