Overlap not triggered

Development Programming & Scripting
, ,
5 
AApple::AApple()
{
 	// Set this actor to call Tick() every frame.  You can turn this off to improve performance if you don't need it.
	PrimaryActorTick.bCanEverTick = true;

	Tags.Add("Apple");

	BoxComponent = CreateDefaultSubobject<UBoxComponent>(TEXT("BoxComp"));
	BoxComponent->InitBoxExtent(FVector(50));
	BoxComponent->SetCollisionProfileName("OverlapAll");
	BoxComponent->SetGenerateOverlapEvents(true);
	RootComponent = BoxComponent;

	MeshComponent = CreateDefaultSubobject<UStaticMeshComponent>(TEXT("StaticMesh"));
	MeshComponent->SetCollisionProfileName("NoCollision");
	MeshComponent->SetupAttachment(RootComponent);
}

// Called when the game starts or when spawned
void AApple::BeginPlay()
{
	Super::BeginPlay();

	if (BoxComponent)
	{
		GEngine->AddOnScreenDebugMessage(-1, 60, FColor::Cyan, "Add");

		BoxComponent->OnComponentBeginOverlap.AddDynamic(this, &AApple::OnOverlap);
	}

	GridSubsystem = GetWorld()->GetSubsystem<UGridSubsystem>();

	if (GridSubsystem)
	{
		FIntVector GridSize = GridSubsystem->GetMatrix();
		FIntVector RandomGridPos;

		do
		{
			RandomGridPos = FIntVector(FMath::RandRange(0, GridSize.X - 1), FMath::RandRange(0, GridSize.Y - 1), FMath::RandRange(0, GridSize.Z - 1));
		} while (CurrentGridPosition == RandomGridPos || GridSubsystem->GetTileState(RandomGridPos) != TileState::Unoccupied);

		FVector NewLocation;
		GridSubsystem->GetTilePosition(RandomGridPos, NewLocation);
		CurrentGridPosition = RandomGridPos;
		SetActorLocation(NewLocation);
	}
}

void AApple::OnOverlap(UPrimitiveComponent* OverlappedComp, AActor* OtherActor, UPrimitiveComponent* OtherComp, int32 OtherBodyIndex, bool bFromSweep, const FHitResult& SweepResult)
{
	GEngine->AddOnScreenDebugMessage(-1, 60, FColor::Cyan, "Overlap");

	if (!OtherActor->ActorHasTag("Head")) return;


	if (GridSubsystem->GetOccupiedCount() == GridSubsystem->GetCount()) SetActorLocation(FVector(-500, -500, 0));

	FIntVector GridSize = GridSubsystem->GetMatrix();
	FIntVector RandomGridPos;

	do
	{
		RandomGridPos = FIntVector(FMath::RandRange(0, GridSize.X - 1), FMath::RandRange(0, GridSize.Y - 1), FMath::RandRange(0, GridSize.Z - 1));
	} while (CurrentGridPosition == RandomGridPos || GridSubsystem->GetTileState(RandomGridPos) != TileState::Unoccupied);

	FVector NewLocation;
	GridSubsystem->GetTilePosition(RandomGridPos, NewLocation);
	CurrentGridPosition = RandomGridPos;
	SetActorLocation(NewLocation);
}

Here it is.

The thing is the AddOnScreenDebugMessage at the beginning of OnOverlap is not getting called at all.