Function saveMapDiff

plugins/dm.gameconnection/GameConnection.cpp:727–776

* stgatilov: Saves only entities with specified names to in-memory map patch. * This diff is intended to be consumed by TheDarkMod automation for HotReload purposes. * TODO: What about patches and brushes? */

 * TODO: What about patches and brushes?
 */
std::string saveMapDiff(const DiffEntityStatuses& entityStatuses)
{
    auto root = GlobalSceneGraph().root();

    std::set<scene::INode*> subsetNodes;
    root->foreachNode([&](const scene::INodePtr& node) {
        if (entityStatuses.count(node->name()))
            subsetNodes.insert(node.get());
        return true;
    });

    std::ostringstream outStream;
    outStream << "// diff " << entityStatuses.size() << std::endl;

    DiffDoom3MapWriter writer(entityStatuses);

    //write removal stubs (no actual spawnargs)
    for (const auto& pNS : entityStatuses) {
        const auto& name = pNS.first;
        const auto& status = pNS.second;
        assert(status.isModified());    //(don't put untouched entities into map)
        if (status.isRemoved())
            writer.writeRemoveEntityStub(name, outStream);
    }

    //write added/modified entities as usual
    {
        registry::ScopedKeyChanger progressDisabler(RKEY_MAP_SUPPRESS_LOAD_STATUS_DIALOG, true);

        // Hack: disable recalculateBrushWindings for this export
        registry::ScopedKeyChanger<std::string> guard("MapExporter_IgnoreBrushes", "yes");

        // Get a scoped exporter class
        auto exporter = GlobalMapModule().createMapExporter(writer, root, outStream);

        try
        {
            // Pass the traversal function and the root of the subgraph to export
            exporter->exportMap(root, scene::traverseSubset(subsetNodes));
            // end the life of the exporter instance here to finish the scene
            exporter.reset();
        }
        catch (map::FileOperation::OperationCancelled&)
        {
            radiant::NotificationMessage::SendInformation(_("Map export cancelled"));
        }
    }

    return outStream.str();
}

void GameConnection::doUpdateMap()
{