Trying to get a variable to identify

[anonymous_user_79a4fc341 (anonymous_user_79a4fc34)]

What I want to do is I want a door to open after someone enters a password into a widget I set up with blueprint. I created a C++ class to open the door which works and I am now trying to set up a if statement for it to open when a variable I created changes.

To make a variable I can access in both blueprint a c++ I followed this guide and my variable I created in gamemodebase c++ component now shows up in blueprint: A new, community-hosted Unreal Engine Wiki - Announcements - Epic Developer Community Forums

Now I am trying to introduce my variable into other .cpp files specifically the one that opens my door but the problem is its not Identifying. My suspicions are that I am missing #include.

Here is header file for my game mode:

And here is my .cpp c++ component for the door;

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And here is the variable working in blueprint am trying to have it so when this is set c++ class for my door will take note of it and open the door according to my if statement.

[HarryHighDef]

You see the get and cast you do in your BP code to set the variable. You’ll have to make the equivalent get and cast to get the variable in c++.

[Velrin]

You need to do something like this:

ACemeteryFPSGameModeBase* CemeteryGameMode = Cast(UGamePlayStatics:GetGameMode(GetWorld()));

if(CemeteryGameMode->GateKey > 1)
OpenGate();

[anonymous_user_79a4fc341 (anonymous_user_79a4fc34)]

I gave it a shot but “Cast” has a error “no instance overloaded function” & “UGamePlayStatics:” is coming up as “Identifier is undefined”.

I was thinking I was missing a include for UGamePlayStatics so I included the following in my .cpp:

#include “Runtime/Engine/Classes/Kismet/GameplayStatics.h”

But it still appears as undefined. I am assuming I am missing some includes.

[anonymous_user_79a4fc341 (anonymous_user_79a4fc34)]

OK I fixed the issue with UGamePlaystatics by changing the capital P to a small p to get UGameplayStatics.

However the issue with cast is still present and Get World now has the following error:
Uworld *UActorComponent::GetWorld() const
argument of type “UWorld *” is incompatible with parameter type “const UObject”

[Velrin]

Hi,

Apologize for that, the example listed in my comment is incorrect. Initially I thought I wrote it incorrectly but it appears the forums here doesn’t like a full cast < > example. Put your ACemeteryFPSGameModeBase between those symbols in the example below.

Use Cast<>(UGameplayStatistics::GetGameMode(GetWorld()));

[anonymous_user_79a4fc341 (anonymous_user_79a4fc34)]

Thanks it greatly appreciated, It works now. The door now opens after a user interacts with my blueprint made widget in my game.