Problem in casting to c++ class

[SAMI_SYED]

Hi!
I am trying to cast a BP_HUD to a HUD type c++ class which is failing. The BP is reparented to the c++ class which I am trying to cast to. Unable to figure out why?

Here Gamemode`s HUD is set to BP_HUD which is a blueprint reparented to ObjectiveHUD which is a C++ class based on HUD. GiveWarning method is BlueprintImplementableEvent which is defined in BP_HUD. But still the cast fails.

[DanM]

What are you trying to do? HUDClass is the class. It’s not a pointer to an instance of it.

i.e. It’s a UClass* / TSubclassOf. Not AGameModeBase* or derivatives thereof.

[SAMI_SYED]

I am trying to get the reference to HUD class set in game mode at that time (which at time is BP_HUD which is based on ObjectiveHUD class). This is so I can call the method defined in ObjectiveHUD class. This code is written in a different class which is called when player overlaps that trigger.

[DanM]

@SAMI_SYED

. This is so I can call the method defined in ObjectiveHUD class.

That’s the thing. You can’t do that because that is presumably a non-static member function so it needs an instance to call it on.

HUDClass is not a pointer to an instance. It is the class itself.

For example

class Example
{
    // data
};

int main()
{
    // Invalid syntax to demonstrate a point
    HUDClass = Example;   
}

So not to any instance of Example but Example itself.

[SAMI_SYED]

OK, so is there any other way to get instance of the current HUD class in use?

[DanM]

Get the player controller and use GetHUD

APlayerController::GetHUD

[SAMI_SYED]

Ok, Thanks