Method Spawn

Source/Engine/Level/SceneObjectsFactory.cpp:126–257

}

SceneObject* SceneObjectsFactory::Spawn(Context& context, const ISerializable::DeserializeStream& stream)
{
    // Get object id
    Guid id = JsonTools::GetGuid(stream, "ID");
    ISerializeModifier* modifier = context.GetModifier();
    modifier->IdsMapping.TryGet(id, id);
    if (!id.IsValid())
    {
        LOG(Warning, "Invalid object id.");
        return nullptr;
    }
    SceneObject* obj = nullptr;

    // Check for prefab instance
    Guid prefabObjectId;
    if (JsonTools::GetGuidIfValid(prefabObjectId, stream, "PrefabObjectID"))
    {
        // Get prefab asset id
        const Guid prefabId = JsonTools::GetGuid(stream, "PrefabID");
        if (!prefabId.IsValid())
        {
            LOG(Warning, "Invalid prefab id.");
            return nullptr;
        }

        // Load prefab
        auto prefab = Content::LoadAsync<Prefab>(prefabId);
        if (prefab == nullptr)
        {
            LOG(Warning, "Missing prefab {0}.", prefabId);
            return nullptr;
        }
        if (prefab->WaitForLoaded())
        {
            LOG(Warning, "Failed to load prefab {0}.", prefab->ToString());
            return nullptr;
        }

        // Get prefab object data from the prefab
        const ISerializable::DeserializeStream* prefabData;
        if (!prefab->ObjectsDataCache.TryGet(prefabObjectId, prefabData))
        {
            LOG(Warning, "Missing object {1} data in prefab {0}.", prefab->ToString(), prefabObjectId);
            return nullptr;
        }

        // Map prefab object ID to the deserialized instance ID
        modifier->IdsMapping[prefabObjectId] = id;

        // Create prefab instance (recursive prefab loading to support nested prefabs)
        obj = Spawn(context, *prefabData);
    }
    else
    {
        const auto typeNameMember = stream.FindMember("TypeName");
        if (typeNameMember != stream.MemberEnd())
        {
            if (!typeNameMember->value.IsString())