Need Help with Initializing AIPerception and getting enemy to switch players on the fly.

Development Programming & Scripting C++
2

I think you need to set up senses for the component, here is how i did it in my AI controller maybe it can help you.

.h



	virtual void ActorsPerceptionUpdated(const TArray<AActor*>& UpdatedActors);

	UPROPERTY(VisibleAnywhere, BlueprintReadOnly, Category = "AI")
        UAISenseConfig_Sight *sightConfig;

	UPROPERTY(VisibleAnywhere, BlueprintReadOnly, Category = "AI")
	UAIPerceptionComponent *aiPerception;

.cpp



AUnitAIController::AUnitAIController(const FObjectInitializer &ObjInit)
{	
	aiPerception = GetAIPerceptionComponent();
	aiPerception = CreateDefaultSubobject<UAIPerceptionComponent>(TEXT("AIPerception Component"));
	sightConfig = CreateDefaultSubobject<UAISenseConfig_Sight>(TEXT("Sight Config"));
	sightConfig->DetectionByAffiliation.bDetectEnemies = true;
	sightConfig->DetectionByAffiliation.bDetectNeutrals = true;
	sightConfig->DetectionByAffiliation.bDetectFriendlies = true;
	aiPerception->ConfigureSense(*sightConfig);
}

void AUnitAIController::ActorsPerceptionUpdated(const TArray<AActor*>& UpdatedActors)
{
	for (AActor *actor : UpdatedActors)
	{
	     //do something
        }
}

The ActorsPerceptionUpdated is only called when something is changed (when characters enters or leaves your perception).