Can't get sound or particle system to active.

Development Programming & Scripting C++
1

I’ve spent the entire day trying to get this to work, but I’m still facing an odd problem.

In my header I have:


private:

UPROPERTY(Category = "Code|Effects", EditDefaultsOnly)
UParticleSystem* Jump_Particles; 
UPROPERTY(Category = "Code|Effects", EditDefaultsOnly)
USoundCue* Jump_Sound;

UPROPERTY(VisibleDefaultsOnly)
UParticleSystemComponent* Jump_PSComp;
UPROPERTY(VisibleDefaultsOnly)
UAudioComponent* Jump_AuComp;

In the editor I assign a pre-existing particle system effect and sound cue from StarterContents to the appropriate variables.

In my jump function in the .cpp file I have:


if (Jump_PSComp && Jump_Particles)
{
	Jump_PSComp->SetTemplate(Jump_Particles);
	Jump_PSComp->ActivateSystem(true);
}

else GLog->Log("No particles.");

if (Jump_AuComp && Jump_Sound)
{
	Jump_AuComp->SetSound(Jump_Sound);
	Jump_AuComp->Play();
}

else GLog->Log("No sound.");

As you may have imagined by the nature of this post I get ‘No particles.’ and ‘No sound.’ messages in my output log. Oddly I can get the code to work if I copy and paste the exact same thing from my jump function to BeginPlay(). What’s going on here?

2

Nothing comes to mind directly. Have you tried checking which of the two is NULL, Jump_PSComp or Jump_Particles?

3

Just tested all four variables. The problematic ones are:

Jump_Particles
Jump_Sound

In other words it’s the variables I’ve assigned from the editor. It’s odd because as I stated earlier, the code runs fine from BeginPlay().

4

It does sound odd, maybe you can post a bit more of your .cpp code?

5

For you? Anything.

Code Link Censored

Edit: The Jump() function is called as intended, because the GLog messages are visible every time I press the appropriate key. I’m using UE4.8 if that helps.

6

SOLVED

The problem was the way I spawned my actor. My idea of class inheritance mixed with blueprints was messed up which caused the problem.
By making a UBlueprint* variable exposed to the editor and dragging my player’s blueprint in there then using its GeneratedClass member variable to spawn it via my custom GameMode, I got it to work.
Not sure why BeginPlay() worked now that I think about it, but it works now so that’s good.

Thanks NisshokuZK for the assistance.