Can't figure out why I'm running into a breakpoint

Development Programming & Scripting C++
, , , ,
1

I’m trying to figure out why this breakpoint is occurring. This is in the constructor to my player character. I’m on version 4.1

   CollisionComponent = PCIP.CreateDefaultSubobject<USphereComponent>(this, ADefaultPawn::CollisionComponentName);
   CollisionComponent->InitSphereRadius(35.0f);
   CollisionComponent->BodyInstance.bEnableCollision_DEPRECATED = true;
   static FName CollisionProfileName(TEXT("Pawn"));
   CollisionComponent->SetCollisionProfileName(CollisionProfileName);
   CollisionComponent->CanBeCharacterBase = ECB_No;
   CollisionComponent->bShouldUpdatePhysicsVolume = true;
    	
   SpringArm = PCIP.CreateDefaultSubobject<USpringArmComponent>(GetOuter(), TEXT("SpringArm0"));
   SpringArm->SetRelativeRotation( FRotator(0.f, 0.f, 0.f));
   SpringArm->AttachTo(RootComponent);
   SpringArm->TargetArmLength = 500.0f;
   MovementComponent = PCIP.CreateDefaultSubobject<UFloatingPawnMovement>(this, ADefaultPawn::MovementComponentName);
   MovementComponent->UpdatedComponent = CollisionComponent;
    	
   RootComponent = CollisionComponent;

   Camera = PCIP.CreateDefaultSubobject<UCameraComponent>(GetOuter(), TEXT("Camera0"));
   Camera->AttachTo(SpringArm, USpringArmComponent::SocketName);
   Camera->bUseControllerViewRotation = false;
   Camera->FieldOfView = 75.f;

If I leave the line RootComponent = CollisionComponent; at the end of the Movementcomponent/springarm block then I encounter only one breakpoint. It takes me to OutputDevice.cpp line 214 (specifically after pressing play in the editor). I’m not quite sure why. If I move the line RootComponent = CollisionComponent; to be between the definition of SpringArm and the end of the CollisionComponent block then I encounter a ton of breakpoints(to many to list, also before I press play in the editor). If I comment out the line RootComponent = CollisionComponent; then no breakpoints are encountered and my movement no longer works.

If I continue after encountering the breakpoint the game runs fine.

Has anyone else run into a similar issue or knows where to go from here. It works but I’d rather not have to leave something faulty in because the engine is able to handle a mistake I made in my code.

Thanks

2

Hi ghlkvf,

Could you provide the code from your .h file? Also, is this all of the code in your constructor?

3

Attached is the .h (in .txt form) file associated with the original code. The code in the original post is the entirety of the constructor for this PlayerPawn.

link text

4

i can’t even compile your source because of a linker error…

error LNK2001: unresolved external symbol “public: virtual void __cdecl APlayerPawn::SetupPlayerInputComponent(class UInputComponent *)” (?SetupPlayerInputComponent@APlayerPawn@@UEAAXPEAVUInputComponent@@@Z)

can you provide the whole *.cpp file?

5

PlayerPawn is just the name of the class, mostly arbitrary. As for setting up player input this is how I am doing it.

void APlayerPawn::SetupPlayerInputComponent(class UInputComponent* InputComponent){
	check(InputComponent);

	InputComponent->BindAxis("MoveRight", this, &APlayerPawn::MoveRight);
	InputComponent->BindAction("MoveUp", IE_Pressed, this, &APlayerPawn::OnJumpPressed);	//these will not be called as long as they are held down, one press is one call
	InputComponent->BindAction("MoveUp", IE_Released, this, &APlayerPawn::OnJumpReleased);	//one release is one call, the same method of movement for right and left will not work for the spacebar
}

Where the MoveRight and MoveUp are defined in the engine

6

crap… i need to rebuild debug editor… will take half a hour…

7

so i ran the code in debug and the exception is caused because the the pawn actor isn’t registered…

8

the problem is line 16:
RootComponent = CollisionComponent;

if the root component must be the sphere then here is something to read…
link text

and here:
link text

Please post an reply if you successfully changed the root component in code only…
i am curious but to tired to find out how to do it properly :slight_smile:

9

Thanks for the help Dave. Ive left the uni today already but ill take a look at what you linked tonight and look into it again in the morning. Ive also tried making it a capsule instead of a sphere but came to the same result.

Posting from my phone. Sorry for the terrible grammar/spelling.