UGameplayStatics No Instance of overload function

Development Programming & Scripting
1

Using this code below I get a, No Instance of overload function warning in Visual Studio, It can be hooked to elements in the unreal editor and blueprints though. It seems I’m missing something for it to work once played, as the UGameplayStatics works for ApplyPointDamage in this section, but not at these two locations for a muzzle element and hit element. Went to the Unreal Documentation for UGameplayStatics and am not immediately aware of what issue I’ve created. New to working in C++ and would love some assistance into whatever I seem to be missing.

	FHitResult Hit;
	if (GetWorld()->LineTraceSingleByChannel(Hit, EyeLocation, TraceEnd, ECC_Visibility, QueryParams))

	{
		// Blocking Hit! Process damage

		AActor* HitActor = Hit.GetActor();

		UGameplayStatics::ApplyPointDamage(HitActor, 20.0f, ShotDirection, Hit, MyOwner->GetInstigatorController(), this, DamageType);

		if (ImpactEffect)
		{
			UGameplayStatics::SpawnEmitterAtLocation(GetWorld(), ImpactEffect, Hit.ImpactPoint, Hit.ImpactNormal.Rotation());
		}
	}

	DrawDebugLine(GetWorld(), EyeLocation, TraceEnd, FColor::White, false, 1.0f, 0, 1.0f);

	if (MuzzleEffect)
	{
		UGameplayStatics::SpawnEmitterAttached(MuzzleEffect, MeshComp, MuzzleSocketName);
	}
2

o to /Engine/Source/Runtime/Engine/Classes/Kismet/GameplayStatics.h and see for yourself the 3 different implementations of the SpawnEmitterAtLocation function.

Only the third option uses UWorld* instead of WorldContextObject, and for that, you need to feed in: UWorld* World, UParticleSystem* EmitterTemplate, const FTransform& SpawnTransform if you leave the arguments with default values at their defaults.

3

Thank you, I’ll take a look at it and see if the others will work.