Dungeon Architect

[uced]

@;611062

, the emitter BP can see your variables from code. You need to add a reference to your C++ actor that drives this variable and read it from there

's an example where from the BP, I’m grabbing the distance (random value between 1-6) from C++

C++ code that drives the distance variable:
AMyDungeonController.h

#pragma once
#include "AMyDungeonController.generated.h"

UCLASS(Blueprintable)
class AMyDungeonController : public AActor
{
	GENERATED_BODY()

public:

	UFUNCTION(BlueprintCallable, BlueprintPure, Category = MyDungeonController)
	int32 GetMountainDistance();

};

AMyDungeonController.cpp

#include "DA413X.h"	// pch
#include "AMyDungeonController.h"

int32 AMyDungeonController::GetMountainDistance()
{
	return FMath::RandRange(1, 6);
}

Add a variable in the emitter BP that takes a references to your controller code and make it public

Grab the distance from your C++ code

Finally, set the reference of your C++ code in the marker emitter when you register it in the Dungeon actor. (The assumption is that you have it somewhere placed in the level, which you probably do)

Clicking build now randomly generates rocks that are 1-6 layers deep

Hey !

Thanks for your answers !

Problem 1 (instancing ultimate rock pack): as i said in a previous post, don’t waste your time on this (unless you need to understand what happened), i solved it experimentally by modifying the collisions. I didn’t understand anything but the problem is solved for me

Problem 2 (accessing c++ variable from BP): your assumption is the core of the problem

Unfortunately i spawn the dungeons at runtime so no, i don’t have them placed in the level, it’s the problem. I need a way to set the DungeonCppCode variable at runtime !

If i had the hand on the code, i would probably declare a public (visibleanywhere, blueprintreadonly) pointer/ref to the ADungeon in the emitters and set it as “this” when adding the emitter to the dungeon.

Your DungeonMarkerEmitter.h code would become something like:

class DUNGEONARCHITECTRUNTIME_API UDungeonMarkerEmitter : public UObject
{
	...]

	UPROPERTY(VisibleAnywhere, BlueprintReadOnly, Category = Dungeon)
	AActor* ParentDungeon;

	...]
}

And when adding the emitter in my dungeon class (inheriting from ADungeon), my own code would become:

// emitter
FString StrEmptySpaceDAEmitter = "Class'/Game/DLCDaDungeons/EmptySpaceThemes/Rules/MarkerEmitter/BPM_EmptySpaceEmitter.BPM_EmptySpaceEmitter_C'";
UClass* UClassEmitter = LoadObject<UClass>(NULL, *StrEmptySpaceDAEmitter);

// create an object from this BP class
UDungeonMarkerEmitter* DAEmptySpaceEmitter = NewObject<UDungeonMarkerEmitter>(this, UClassEmitter);

// if ok, use it
if (DAEmptySpaceEmitter)
{
	MarkerEmitters.Add(DAEmptySpaceEmitter);
	DAEmptySpaceEmitter->ParentDungeon = this; // YEEHAAA !!!
}

That would be a way to expose the owner dungeon in the emitters BP, then i would just grab it, cast it to my own inheriting class and become king of the world.

But i don’t have the hand on your code^^ and maybe there is a simpler way to do this from BP without modifying the code (couldn’t reach the owner ADungeon from the emitter BP though, hence the post ^^)

Cheers