Collisionbox event only works once

Development Programming & Scripting
1

Hello,
I have attached a collisionbox to an Actor and everytime my character is colliding with it i am creating a new floor tile but it only works on the first collisionbox.
here is my code :

void AFloor::BeginPlay()
    {
    	Super::BeginPlay();	
    	Collisionbox->OnComponentBeginOverlap.AddDynamic(this,&AFloor::CheckCollision);
    }

void AFloor::CheckCollision(UPrimitiveComponent* OverlappedComp, AActor* OtherActor, UPrimitiveComponent* OtherComp, int32 OtherBodyIndex, bool bFromSweep, const FHitResult& SweepResult)
{
	 if ((OtherActor != nullptr) && (OtherActor != this) )
	{
		SpawnFloor(); // here i spawn a Bluepring floor tile actor
	}
}

Thank you for your help

2

Collisionbox->OnComponentBeginOverlap.AddDynamic(this,&AFloor::CheckCollision);
Move this section of the code to the constructor and add an keyword virtual infornt of your check collision function in the .h file

E.g.

UFUNCTION()
virtual void CheckCollision();
3

Can you show your construction code?

4

you should not bind delegates without good reason on the constructor.

5

Your CheckCollition signature is different between your header and cpp

6

That would cause a compile error. which he stated is not happening. So this answer is not valid. He said its overlapping once only.

7

My mistake, meant to add a comment, not an answer.

@philex are you sure your newly spawned collisionbox is attached and in the expected location?

8

Also why does virtual matter?

9

Well by default i don’t know why but if your function does not have the name OnOverlapBegin() the function does not get a call. But adding the virtual keyword lets you overide that as well as helps if you are going to create a child class.