Custom nodes (C++)

anonymous_user_d2ff9dd31 · August 12, 2015, 6:50am

Hey! I don’t know but my code doesn’t work for some reason, I’ve tried so many different things and gave up.
Any help you be awsome
thanks in advance

header file:

#pragma once

#include "GameFramework/Actor.h"
#include "multiRun.generated.h"
#include "EMultiRunEnum.h"

UCLASS(meta = (BlueprintSpawnableComponent))
class UNKNOWN_API AmultiRun : public ActorComponent
{
	GENERATED_BODY()

public:
	UFUNCTION(BlueprintPure, Meta = (FriendlyName = "MultiRun", CompactNodeTitle = "MultiRun", Keywords = "Multi Run", ExpandEnumAsExecs = "Branches"), Category = Game)
		bool MultiRun(bool active, TEnumAsByte<EMultiRunEnum>& Branches);
};

cpp file:

#include "unknown.h"
#include "multiRun.h"
#include "EMultiRunEnum.h"


void multiRun::MultiRun(bool active, TEnumAsByte<EMultiRunEnum>& Branches)
{
	if (active)
	{
		Branches = EMultiRunEnum::BranchA;
		Branches = EMultiRunEnum::BranchB;
	}
}

anonymous_user_d2ff9dd31 · August 16, 2015, 2:25pm

Still didn’t work sorry, for some reason UE4 does not like my nodes so… yea idk what to do at this point…
I modified the code because it looked like it was conflicting with a different node but… nothing happened
Header:

    #pragma once
    #include "GameFramework/Actor.h"
    #include "multiBranch.generated.h"
    #include "EMultiBranchEnum.h"
    
    UCLASS(meta = (BlueprintSpawnableComponent))
    class UNKNOWN_API AmultiBranch : public ActorComponent
    {
    	GENERATED_BODY()
    
    public:
    	UFUNCTION(BlueprintCallable, Meta = (FriendlyName = "MultiBranch", CompactNodeTitle = "MultiBranch", Keywords = "Multi Branch", ExpandEnumAsExecs = "Branches"), Category = Game)
    		void MultiRun(bool active, TEnumAsByte<EMultiBranchEnum>& Branches);
    };

CPP file:

#pragma once
#include "unknown.h"
#include "multiBranch.h"
#include "EMultiBranchEnum.h"

void AmultiBranch::MultiBranch(bool active, TEnumAsByte<EMultiBranchEnum>& Branches)
{
	if (active)
	{
		Branches = EMultiBranchEnum::BranchA;
		Branches = EMultiBranchEnum::BranchB;
	}
}

my Enums:

#pragma once

#include "GameFramework/Actor.h"
#include "multiBranch.generated.h"

UENUM(BlueprintActor)
enum class EMultiBranchEnum
{
public: 
	BranchA,
	BranchB
};

any help would be amazin XD

Shadowriver · August 21, 2015, 3:38pm

What exactly is going on? Node does not appear or what? how does it not work? You didn’t said.

Also post reponce to anwser by posting comment to anwser, not as another anwser

anonymous_user_d2ff9dd31 · August 21, 2015, 6:52pm

The Node doesn’t show in the editor.

Shadowriver · August 21, 2015, 7:25pm

You placing function in component, so it wont show up in context menu unles from pin containing object of that component. Your node should be visible in Pallet tab which contains all function nodes should be visible. Pallet tab is closed by default, you need to open it from “Window” manu.

anonymous_user_d2ff9dd31 · August 22, 2015, 7:34am

ok, but what do I need to switch out in the code?

Shadowriver · August 22, 2015, 4:09pm

nothing, it should be there, your code looks ok

anonymous_user_d2ff9dd31 · August 22, 2015, 9:34pm

ok? because it still isn’t there XD

Shadowriver · August 23, 2015, 12:28am

Well i told him to look on Pallet window, all function nodes (not sure about custom K2Nodes) are visible there regardless of class they came from

Shadowriver · August 23, 2015, 12:37am

Well your code looks ok, only think that looks odd is ActorComponent without U prefix, but that would trow you a error. you could try removing CompactNodeTitle = "MultiBranch" as Cancel said, but it’s just cosmetic feature, so it should not matter and besides if theres something invalid in UFUNCTION, UHT would not let you build your code.

Only idea that popup in my head just now is that this code file does not compile at all (which would explain why you not getting error from incorrect naming of UActorComponent), this happens when you add file using VS which will create file in Intermediate directory where UBT don’t look for code files. Can you check if you got that file in Source directory (but don’t look in VS, look in some disk browser)?

anonymous_user_d2ff9dd31 · August 27, 2015, 5:20pm

Ok, sorry, took a small break from development, but:
I made an if instead, incase there is any incompatible use of branches (two branches that are called at the same time).
The code now:
EMultiBranchEnum.h:

#pragma once

#include "GameFramework/Actor.h"
#include "multiBranch.generated.h"

UENUM(BlueprintActor)
enum class EMultiBranchEnum
{
public: 
	BranchA,
	BranchB
};

multiBranch.h:

#pragma once

#include "GameFramework/Actor.h"
#include "multiBranch.generated.h"
#include "EMultiBranchEnum.h"

UCLASS(meta = (BlueprintSpawnableComponent))
class UNKNOWN_API UAmultiBranch : public UActorComponent
{
	GENERATED_BODY()

public:
	UFUNCTION(BlueprintCallable, Meta = (FriendlyName = "Multi Branch", Keywords = "Multi Branch", ExpandEnumAsExecs = "Branches", ShortTooltip = "An IF node"), Category = Game)
		bool multiBranch(bool active, TEnumAsByte<EMultiBranchEnum>& Branches);
};

multiBranch.cpp:

#include "unknown.h"
#include "multiBranch.h"
#include "EMultiBranchEnum.h"

bool UAmultiBranch::multiBranch(bool active, TEnumAsByte<EMultiBranchEnum>& Branches)
{
	if (active)
	{
		Branches = EMultiBranchEnum::BranchA;
	}
	else
	{
		Branches = EMultiBranchEnum::BranchB;
	}
	return active;
}

I’ve check the placement of the files and all lies inside the Source folder. I corrected the ActorComponent to UActorComponent and AmultiBranch to UAmultiBranch. I looked in the pallet window and searched for “multi” but it only showed up with “add Multi Branch”:

and I pulled out a branch wire and got the same thing. It looked like this: (view the node picture)