Not seeing PlayerLocation in the BlackBoard

[GingerbreadFetus]

I’m having the same problem as PaulB7538. However, as shown in the screenshot, if I click the drop down to select a debug object, it’s showing no objects detected:

It does still show it in the Behavior Tree, I’m just kinda curious how to fix this, or what may be causing it.

[DanM]

Do you have an AI character in your level? Is it using your custom ai controller class? Does that have your behaviour tree assigned?

[GingerbreadFetus]

Yeah, I followed the videos pretty closely. I suppose I should also note that I’m using Unreal Engine 5.3 as well.

[DanM]

Would you mind showing all of that please?

[GingerbreadFetus]

Certainly.

[DanM]

And finally the code? Are you also sure it compiled successfully? Have you tried adding a log after running the behaviour tree?

[GingerbreadFetus]

Yeah, the code compiled successfully. It doesn’t effect the functionality at all, so I moved on to future videos. Here is what my CPP file looks like currently.

#include "Kismet/GameplayStatics.h"
#include "BehaviorTree/BlackboardComponent.h"
#include "ShooterAIController.h"

void AShooterAIController::Tick(float DeltaSeconds)
{
	Super::Tick(DeltaSeconds);
	APawn* PlayerPawn = UGameplayStatics::GetPlayerPawn(GetWorld(), 0);
	if (LineOfSightTo(PlayerPawn))
	{
		
		GetBlackboardComponent()->SetValueAsVector(TEXT("PlayerLocation"), PlayerPawn->GetActorLocation());
		GetBlackboardComponent()->SetValueAsVector(TEXT("LastKnownPlayerLocation"), PlayerPawn->GetActorLocation());
	}
	else
	{
		GetBlackboardComponent()->ClearValue(TEXT("PlayerLocation"));
	}
}

void AShooterAIController::BeginPlay()
{
	Super::BeginPlay();

	if (AIBehavior != nullptr)
	{
		RunBehaviorTree(AIBehavior);
		UE_LOG(LogTemp, Warning, TEXT("Running Behavior Tree"));
		APawn* PlayerPawn = UGameplayStatics::GetPlayerPawn(GetWorld(), 0);

		GetBlackboardComponent()->SetValueAsVector(TEXT("StartLocation"), GetPawn()->GetActorLocation());
	}
}

And I did check, it runs that log line, but I wasn’t sure what to put in it.

[DanM]

Does it work if you use try that from the behaviour tree window?

[GingerbreadFetus]

I’m not sure I understand what you mean.

[DanM]

Your initial screenshot is from looking via the blackboard asset, I’m saying do so from the behaviour tree (BT_EnemyAI, the next tab to the right of what is currently open in the screenshot)

[GingerbreadFetus]

Sure!

[DanM]

So is there still an issue?

[GingerbreadFetus]

Nope. I guess something between this video and where I am fixed it.
¯_(ツ)_/¯