Function ResCollectionRecreate

engine/gameobject/src/gameobject/res_collection.cpp:278–351

    }

    static dmResource::Result ResCollectionRecreate(const dmResource::ResourceRecreateParams* params)
    {
        dmGameObjectDDF::CollectionDesc* collection_desc;
        dmDDF::Result e = dmDDF::LoadMessage<dmGameObjectDDF::CollectionDesc>(params->m_Buffer, params->m_BufferSize, &collection_desc);
        if ( e != dmDDF::RESULT_OK )
        {
            return dmResource::RESULT_FORMAT_ERROR;
        }

        HCollection prev_hcollection = (HCollection) ResourceDescriptorGetResource(params->m_Resource);
        Collection* prev_collection = prev_hcollection->m_Collection;
        Register* regist = (Register*) params->m_Context;
        bool was_initialized = IsCollectionInitialized(prev_collection);

        if (was_initialized)
        {
            dmGameObject::Final(prev_hcollection);
        }
        dmGameObject::DetachCollection(prev_collection);

        HCollection delete_hcollection = 0;
        dmResource::Result res = AcquireResources(collection_desc->m_Name, params->m_Factory, regist, collection_desc, params->m_Filename, &delete_hcollection);
        if (dmResource::RESULT_OK == res)
        {
            // We cannot simply swap the HCollection, since that's the resource that has been handed out
            // so we swap the internal pointers, and tag the new hcollection for deletion
            Collection* new_collection = delete_hcollection->m_Collection;

            prev_hcollection->m_Collection = new_collection;
            prev_collection->m_HCollection = delete_hcollection;
            delete_hcollection->m_Collection = prev_collection;
            new_collection->m_HCollection = prev_hcollection;

            if( was_initialized )
            {
                if (!dmGameObject::Init(prev_hcollection) ) // this is the new collection
                {
                    dmLogWarning("Failed to initialize collection: %s", collection_desc->m_Name);

                    // For those things that actually did manage to initialize (e.g. send events)
                    dmGameObject::Final(prev_hcollection);

                    // Swap them back
                    prev_hcollection->m_Collection = prev_collection;
                    prev_collection->m_HCollection = prev_hcollection;
                    delete_hcollection->m_Collection = new_collection;
                    new_collection->m_HCollection = delete_hcollection;

                    dmGameObject::DeleteCollection(new_collection);

                    // Reattach/reinit the collection
                    dmGameObject::AttachCollection(prev_collection, collection_desc->m_Name, params->m_Factory, regist, prev_hcollection);
                    if (was_initialized)
                    {
                        dmGameObject::Init(prev_hcollection);
                    }

                    dmDDF::FreeMessage(collection_desc);