Method AddEntity

Engine/source/EtFramework/SceneGraph/UnifiedScene.cpp:212–244

------------------------- UnifiedScene::AddEntity Add an entity to the ECS and resolve dependency links - set parent to INVALID_ENTITY_ID to indicate a root entity

//  - set parent to INVALID_ENTITY_ID to indicate a root entity
//
void UnifiedScene::AddEntity(EntityDescriptor const& entDesc, T_EntityId const parent)
{
	T_EntityId const id = m_Scene.AddEntityChild(parent);

	// update all entity links referring to the assigned ID
	EntityLinkResolver::Instance().OnEntityIdAssigned(entDesc.GetId(), id);
	entDesc.SetAssignedId(id);

	// create a component data list
	std::vector<RawComponentPtr> components;
	for (I_ComponentDescriptor* const compDesc : entDesc.GetComponents())
	{
		components.push_back(compDesc->MakeRawData());
	}

	// add the components to our new entity
	// we copy the pointer list because the pointers are "repointed" to the constructed components, which doesn't allow us to free the original memory
	m_Scene.AddComponents(id, std::vector<RawComponentPtr>(components)); 

	// we can now free the memory of our raw component data - this needs to be done manually as we are using void*
	for (RawComponentPtr& comp : components)
	{
		ComponentRegistry::Instance().GetFullDestructor(comp.typeIdx)(comp.data);
	}

	components.clear();

	// add the child entities
	for (EntityDescriptor const& childDesc : entDesc.GetChildren())
	{
		AddEntity(childDesc, id);
	}
}

//------------------------------
// UnifiedScene::PostLoadEntity