How to get components of UStaticMesh Array?

Question

Hej,

In the below code, I'm trying to get the components of UStaticMesh Array, but i'm getting an error as follows.

Error 1 error C2338: 'T' template parameter to GetComponents must be derived from ActorComponent

In .h file

UPROPERTY()
        TArray<UStaticMeshComponent*> StaticMeshComponent;
UPROPERTY()
        TArray<UStaticMesh*> StaticMesh;

In .CPP file

StaticMeshComponent = TArray<UStaticMeshComponent*>();
StaticMeshtemp = TArray<UStaticMesh*>();

for (int32 i = 0; i < 3; i++)
{
    GetComponents<UStaticMeshComponent>(StaticMeshComponent);
    StaticMeshComponent[i] = CreateDefaultSubobject<UStaticMeshComponent>(temp);

    GetComponents<UStaticMesh>(StaticMesh);
    StaticMesh[i] = Cast<UStaticMesh>(StaticLoadObject(UStaticMesh::StaticClass(), NULL, *SMPath));

Is there any another function or method to get the components of UStaticMesh Array ???

Answer 1

I believe this is not necesarry:

StaticMeshComponent = TArray<UStaticMeshComponent*>();
StaticMeshtemp = TArray<UStaticMesh*>();

Both arrays are initialized before running constructor.

Problem:

This code is OK:

 GetComponents<UStaticMeshComponent>(StaticMeshComponent);
 StaticMeshComponent[i] = CreateDefaultSubobject<UStaticMeshComponent>(temp);

StaticMeshComponent is derived from ActorComponent UE Doc.

And this is wrong:

 GetComponents<UStaticMesh>(StaticMesh);

Because as you can find in UE Doc StaticMesh, StaticMesh is not derived from ActorComponent.

Solution:

All you need is call SetStaticMesh function on each StaticMeshComponent that you created via CreateDefaultSubobject<...>.