UInstancedStaticMeshComponent &ACityMapMeshHolder::GetInstantiator(ECityMapMeshTag Tag)
{
UInstancedStaticMeshComponent *instantiator = MeshInstatiators[CityMapMeshTag::ToUInt(Tag)];
if (instantiator == nullptr) {
// Create and register an instantiator.
instantiator = NewObject<UInstancedStaticMeshComponent>(this);
instantiator->SetMobility(EComponentMobility::Static);
instantiator->SetCollisionObjectType(ECollisionChannel::ECC_WorldStatic);
instantiator->SetupAttachment(SceneRootComponent);
instantiator->SetStaticMesh(GetStaticMesh(Tag));
MeshInstatiators[CityMapMeshTag::ToUInt(Tag)] = instantiator;
instantiator->RegisterComponent();
}
check(instantiator != nullptr);
return *instantiator;
}
void UVoxelComponent::InitVoxel()
{
CellBounds = FBoxSphereBounds(FVector::ZeroVector, FVector(100.f, 100.f, 100.f), 100.f);
Mesh.Empty();
Cell.Empty();
InstancedStaticMeshComponents.Empty();
if (Voxel) {
CellBounds = Voxel->CellBounds;
Mesh = Voxel->Mesh;
Cell = Voxel->Voxel;
for (int32 i = 0; i < Mesh.Num(); ++i) {
UInstancedStaticMeshComponent* Proxy = NewObject<UInstancedStaticMeshComponent>(this, NAME_None, RF_Transactional);
Proxy->SetStaticMesh(Mesh[i]);
Proxy->AttachTo(GetOwner()->GetRootComponent(), NAME_None);
InstancedStaticMeshComponents.Add(Proxy);
}
AddVoxel();
}
}