]> git.lizzy.rs Git - dragonfireclient.git/blobdiff - src/client/client.cpp
fix: don't use RenderingEngine singleton when it's possible
[dragonfireclient.git] / src / client / client.cpp
index fd7673a994101eae9a24b93845cae00a51ef4650..1a3a81378341d8eba2515866dabf15f9594f1767 100644 (file)
@@ -60,6 +60,28 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 
 extern gui::IGUIEnvironment* guienv;
 
+/*
+       Utility classes
+*/
+
+u32 PacketCounter::sum() const
+{
+       u32 n = 0;
+       for (const auto &it : m_packets)
+               n += it.second;
+       return n;
+}
+
+void PacketCounter::print(std::ostream &o) const
+{
+       for (const auto &it : m_packets) {
+               auto name = it.first >= TOCLIENT_NUM_MSG_TYPES ? "?"
+                       : toClientCommandTable[it.first].name;
+               o << "cmd " << it.first << " (" << name << ") count "
+                       << it.second << std::endl;
+       }
+}
+
 /*
        Client
 */
@@ -75,6 +97,7 @@ Client::Client(
                NodeDefManager *nodedef,
                ISoundManager *sound,
                MtEventManager *event,
+               RenderingEngine *rendering_engine,
                bool ipv6,
                GameUI *game_ui
 ):
@@ -84,9 +107,10 @@ Client::Client(
        m_nodedef(nodedef),
        m_sound(sound),
        m_event(event),
+       m_rendering_engine(rendering_engine),
        m_mesh_update_thread(this),
        m_env(
-               new ClientMap(this, control, 666),
+               new ClientMap(this, rendering_engine, control, 666),
                tsrc, this
        ),
        m_particle_manager(&m_env),
@@ -107,6 +131,7 @@ Client::Client(
        if (g_settings->getBool("enable_minimap")) {
                m_minimap = new Minimap(this);
        }
+
        m_cache_save_interval = g_settings->getU16("server_map_save_interval");
 }
 
@@ -136,20 +161,6 @@ void Client::loadMods()
        scanModIntoMemory(BUILTIN_MOD_NAME, getBuiltinLuaPath());
        m_script->loadModFromMemory(BUILTIN_MOD_NAME);
 
-       // TODO Uncomment when server-sent CSM and verifying of builtin are complete
-       /*
-       // Don't load client-provided mods if disabled by server
-       if (checkCSMRestrictionFlag(CSMRestrictionFlags::CSM_RF_LOAD_CLIENT_MODS)) {
-               warningstream << "Client-provided mod loading is disabled by server." <<
-                       std::endl;
-               // If builtin integrity is wrong, disconnect user
-               if (!checkBuiltinIntegrity()) {
-                       // TODO disconnect user
-               }
-               return;
-       }
-       */
-
        ClientModConfiguration modconf(getClientModsLuaPath());
        m_mods = modconf.getMods();
        // complain about mods with unsatisfied dependencies
@@ -164,7 +175,7 @@ void Client::loadMods()
                infostream << mod.name << " ";
        infostream << std::endl;
 
-       // Load and run "mod" scripts
+       // Load "mod" scripts
        for (const ModSpec &mod : m_mods) {
                if (!string_allowed(mod.name, MODNAME_ALLOWED_CHARS)) {
                        throw ModError("Error loading mod \"" + mod.name +
@@ -174,7 +185,7 @@ void Client::loadMods()
                scanModIntoMemory(mod.name, mod.path);
        }
 
-       // Load and run "mod" scripts
+       // Run them
        for (const ModSpec &mod : m_mods)
                m_script->loadModFromMemory(mod.name);
 
@@ -183,16 +194,14 @@ void Client::loadMods()
 
        // Run a callback when mods are loaded
        m_script->on_mods_loaded();
+
+       // Create objects if they're ready
        if (m_state == LC_Ready)
                m_script->on_client_ready(m_env.getLocalPlayer());
        if (m_camera)
                m_script->on_camera_ready(m_camera);
-}
-
-bool Client::checkBuiltinIntegrity()
-{
-       // TODO
-       return true;
+       if (m_minimap)
+               m_script->on_minimap_ready(m_minimap);
 }
 
 void Client::scanModSubfolder(const std::string &mod_name, const std::string &mod_path,
@@ -212,18 +221,13 @@ void Client::scanModSubfolder(const std::string &mod_name, const std::string &mo
                infostream << "Client::scanModSubfolder(): Loading \"" << real_path
                                << "\" as \"" << vfs_path << "\"." << std::endl;
 
-               std::ifstream is(real_path, std::ios::binary | std::ios::ate);
-               if(!is.good()) {
+               std::string contents;
+               if (!fs::ReadFile(real_path, contents)) {
                        errorstream << "Client::scanModSubfolder(): Can't read file \""
                                        << real_path << "\"." << std::endl;
                        continue;
                }
-               auto size = is.tellg();
-               std::string contents(size, '\0');
-               is.seekg(0);
-               is.read(&contents[0], size);
 
-               infostream << "  size: " << size << " bytes" << std::endl;
                m_mod_vfs.emplace(vfs_path, contents);
        }
 }
@@ -296,14 +300,11 @@ Client::~Client()
        }
 
        // cleanup 3d model meshes on client shutdown
-       while (RenderingEngine::get_mesh_cache()->getMeshCount() != 0) {
-               scene::IAnimatedMesh *mesh = RenderingEngine::get_mesh_cache()->getMeshByIndex(0);
-
-               if (mesh)
-                       RenderingEngine::get_mesh_cache()->removeMesh(mesh);
-       }
+       m_rendering_engine->cleanupMeshCache();
 
        delete m_minimap;
+       m_minimap = nullptr;
+
        delete m_media_downloader;
 }
 
@@ -311,6 +312,7 @@ void Client::connect(Address address, bool is_local_server)
 {
        initLocalMapSaving(address, m_address_name, is_local_server);
 
+       // Since we use TryReceive() a timeout here would be ineffective anyway
        m_con->SetTimeoutMs(0);
        m_con->Connect(address);
 }
@@ -335,12 +337,14 @@ void Client::step(float dtime)
        {
                float &counter = m_packetcounter_timer;
                counter -= dtime;
-               if(counter <= 0.0)
+               if(counter <= 0.0f)
                {
-                       counter = 20.0;
+                       counter = 30.0f;
+                       u32 sum = m_packetcounter.sum();
+                       float avg = sum / counter;
 
-                       infostream << "Client packetcounter (" << m_packetcounter_timer
-                                       << "):"<<std::endl;
+                       infostream << "Client packetcounter (" << counter << "s): "
+                                       << "sum=" << sum << " avg=" << avg << "/s" << std::endl;
                        m_packetcounter.print(infostream);
                        m_packetcounter.clear();
                }
@@ -430,12 +434,9 @@ void Client::step(float dtime)
        /*
                Handle environment
        */
-       // Control local player (0ms)
        LocalPlayer *player = m_env.getLocalPlayer();
-       assert(player);
-       player->applyControl(dtime, &m_env);
 
-       // Step environment
+       // Step environment (also handles player controls)
        m_env.step(dtime);
        m_sound->step(dtime);
 
@@ -620,14 +621,17 @@ void Client::step(float dtime)
 
        m_mod_storage_save_timer -= dtime;
        if (m_mod_storage_save_timer <= 0.0f) {
-               verbosestream << "Saving registered mod storages." << std::endl;
                m_mod_storage_save_timer = g_settings->getFloat("server_map_save_interval");
+               int n = 0;
                for (std::unordered_map<std::string, ModMetadata *>::const_iterator
                                it = m_mod_storages.begin(); it != m_mod_storages.end(); ++it) {
                        if (it->second->isModified()) {
                                it->second->save(getModStoragePath());
+                               n++;
                        }
                }
+               if (n > 0)
+                       infostream << "Saved " << n << " modified mod storages." << std::endl;
        }
 
        // Write server map
@@ -638,11 +642,9 @@ void Client::step(float dtime)
        }
 }
 
-bool Client::loadMedia(const std::string &data, const std::string &filename)
+bool Client::loadMedia(const std::string &data, const std::string &filename,
+       bool from_media_push)
 {
-       // Silly irrlicht's const-incorrectness
-       Buffer<char> data_rw(data.c_str(), data.size());
-
        std::string name;
 
        const char *image_ext[] = {
@@ -652,15 +654,14 @@ bool Client::loadMedia(const std::string &data, const std::string &filename)
        };
        name = removeStringEnd(filename, image_ext);
        if (!name.empty()) {
-               verbosestream<<"Client: Attempting to load image "
-               <<"file \""<<filename<<"\""<<std::endl;
+               TRACESTREAM(<< "Client: Attempting to load image "
+                       << "file \"" << filename << "\"" << std::endl);
 
-               io::IFileSystem *irrfs = RenderingEngine::get_filesystem();
-               video::IVideoDriver *vdrv = RenderingEngine::get_video_driver();
+               io::IFileSystem *irrfs = m_rendering_engine->get_filesystem();
+               video::IVideoDriver *vdrv = m_rendering_engine->get_video_driver();
 
-               // Create an irrlicht memory file
                io::IReadFile *rfile = irrfs->createMemoryReadFile(
-                               *data_rw, data_rw.getSize(), "_tempreadfile");
+                               data.c_str(), data.size(), "_tempreadfile");
 
                FATAL_ERROR_IF(!rfile, "Could not create irrlicht memory file.");
 
@@ -686,17 +687,15 @@ bool Client::loadMedia(const std::string &data, const std::string &filename)
        };
        name = removeStringEnd(filename, sound_ext);
        if (!name.empty()) {
-               verbosestream<<"Client: Attempting to load sound "
-               <<"file \""<<filename<<"\""<<std::endl;
-               m_sound->loadSoundData(name, data);
-               return true;
+               TRACESTREAM(<< "Client: Attempting to load sound "
+                       << "file \"" << filename << "\"" << std::endl);
+               return m_sound->loadSoundData(name, data);
        }
 
        const char *model_ext[] = {
                ".x", ".b3d", ".md2", ".obj",
                NULL
        };
-
        name = removeStringEnd(filename, model_ext);
        if (!name.empty()) {
                verbosestream<<"Client: Storing model into memory: "
@@ -713,9 +712,11 @@ bool Client::loadMedia(const std::string &data, const std::string &filename)
        };
        name = removeStringEnd(filename, translate_ext);
        if (!name.empty()) {
-               verbosestream << "Client: Loading translation: "
-                               << "\"" << filename << "\"" << std::endl;
-               g_translations->loadTranslation(data);
+               if (from_media_push)
+                       return false;
+               TRACESTREAM(<< "Client: Loading translation: "
+                               << "\"" << filename << "\"" << std::endl);
+               g_client_translations->loadTranslation(data);
                return true;
        }
 
@@ -724,6 +725,72 @@ bool Client::loadMedia(const std::string &data, const std::string &filename)
        return false;
 }
 
+bool Client::extractZipFile(const char *filename, const std::string &destination)
+{
+       auto fs = m_rendering_engine->get_filesystem();
+
+       if (!fs->addFileArchive(filename, false, false, io::EFAT_ZIP)) {
+               return false;
+       }
+
+       sanity_check(fs->getFileArchiveCount() > 0);
+
+       /**********************************************************************/
+       /* WARNING this is not threadsafe!!                                   */
+       /**********************************************************************/
+       io::IFileArchive* opened_zip = fs->getFileArchive(fs->getFileArchiveCount() - 1);
+
+       const io::IFileList* files_in_zip = opened_zip->getFileList();
+
+       unsigned int number_of_files = files_in_zip->getFileCount();
+
+       for (unsigned int i=0; i < number_of_files; i++) {
+               std::string fullpath = destination;
+               fullpath += DIR_DELIM;
+               fullpath += files_in_zip->getFullFileName(i).c_str();
+               std::string fullpath_dir = fs::RemoveLastPathComponent(fullpath);
+
+               if (!files_in_zip->isDirectory(i)) {
+                       if (!fs::PathExists(fullpath_dir) && !fs::CreateAllDirs(fullpath_dir)) {
+                               fs->removeFileArchive(fs->getFileArchiveCount()-1);
+                               return false;
+                       }
+
+                       io::IReadFile* toread = opened_zip->createAndOpenFile(i);
+
+                       FILE *targetfile = fopen(fullpath.c_str(),"wb");
+
+                       if (targetfile == NULL) {
+                               fs->removeFileArchive(fs->getFileArchiveCount()-1);
+                               return false;
+                       }
+
+                       char read_buffer[1024];
+                       long total_read = 0;
+
+                       while (total_read < toread->getSize()) {
+
+                               unsigned int bytes_read =
+                                               toread->read(read_buffer,sizeof(read_buffer));
+                               if ((bytes_read == 0 ) ||
+                                       (fwrite(read_buffer, 1, bytes_read, targetfile) != bytes_read))
+                               {
+                                       fclose(targetfile);
+                                       fs->removeFileArchive(fs->getFileArchiveCount() - 1);
+                                       return false;
+                               }
+                               total_read += bytes_read;
+                       }
+
+                       fclose(targetfile);
+               }
+
+       }
+
+       fs->removeFileArchive(fs->getFileArchiveCount() - 1);
+       return true;
+}
+
 // Virtual methods from con::PeerHandler
 void Client::peerAdded(con::Peer *peer)
 {
@@ -781,11 +848,20 @@ void Client::initLocalMapSaving(const Address &address,
                return;
        }
 
-       const std::string world_path = porting::path_user
-               + DIR_DELIM + "worlds"
-               + DIR_DELIM + "server_"
+       std::string world_path;
+#define set_world_path(hostname) \
+       world_path = porting::path_user \
+               + DIR_DELIM + "worlds" \
+               + DIR_DELIM + "server_" \
                + hostname + "_" + std::to_string(address.getPort());
 
+       set_world_path(hostname);
+       if (!fs::IsDir(world_path)) {
+               std::string hostname_escaped = hostname;
+               str_replace(hostname_escaped, ':', '_');
+               set_world_path(hostname_escaped);
+       }
+#undef set_world_path
        fs::CreateAllDirs(world_path);
 
        m_localdb = new MapDatabaseSQLite3(world_path);
@@ -795,36 +871,31 @@ void Client::initLocalMapSaving(const Address &address,
 
 void Client::ReceiveAll()
 {
+       NetworkPacket pkt;
        u64 start_ms = porting::getTimeMs();
-       for(;;)
-       {
+       const u64 budget = 100;
+       for(;;) {
                // Limit time even if there would be huge amounts of data to
                // process
-               if(porting::getTimeMs() > start_ms + 100)
+               if (porting::getTimeMs() > start_ms + budget) {
+                       infostream << "Client::ReceiveAll(): "
+                                       "Packet processing budget exceeded." << std::endl;
                        break;
+               }
 
+               pkt.clear();
                try {
-                       Receive();
-                       g_profiler->graphAdd("client_received_packets", 1);
-               }
-               catch(con::NoIncomingDataException &e) {
-                       break;
-               }
-               catch(con::InvalidIncomingDataException &e) {
-                       infostream<<"Client::ReceiveAll(): "
+                       if (!m_con->TryReceive(&pkt))
+                               break;
+                       ProcessData(&pkt);
+               } catch (const con::InvalidIncomingDataException &e) {
+                       infostream << "Client::ReceiveAll(): "
                                        "InvalidIncomingDataException: what()="
-                                       <<e.what()<<std::endl;
+                                        << e.what() << std::endl;
                }
        }
 }
 
-void Client::Receive()
-{
-       NetworkPacket pkt;
-       m_con->Receive(&pkt);
-       ProcessData(&pkt);
-}
-
 inline void Client::handleCommand(NetworkPacket* pkt)
 {
        const ToClientCommandHandler& opHandle = toClientCommandTable[pkt->getCommand()];
@@ -841,6 +912,7 @@ void Client::ProcessData(NetworkPacket *pkt)
 
        //infostream<<"Client: received command="<<command<<std::endl;
        m_packetcounter.add((u16)command);
+       g_profiler->graphAdd("client_received_packets", 1);
 
        /*
                If this check is removed, be sure to change the queue
@@ -1100,7 +1172,7 @@ void Client::sendRemovedSounds(std::vector<s32> &soundList)
 
        pkt << (u16) (server_ids & 0xFFFF);
 
-       for (int sound_id : soundList)
+       for (s32 sound_id : soundList)
                pkt << sound_id;
 
        Send(&pkt);
@@ -1183,7 +1255,7 @@ void Client::sendChatMessage(const std::wstring &message)
        if (canSendChatMessage()) {
                u32 now = time(NULL);
                float time_passed = now - m_last_chat_message_sent;
-               m_last_chat_message_sent = time(NULL);
+               m_last_chat_message_sent = now;
 
                m_chat_message_allowance += time_passed * (CLIENT_CHAT_MESSAGE_LIMIT_PER_10S / 8.0f);
                if (m_chat_message_allowance > CLIENT_CHAT_MESSAGE_LIMIT_PER_10S)
@@ -1262,9 +1334,8 @@ void Client::sendPlayerPos()
        // Save bandwidth by only updating position when
        // player is not dead and something changed
 
-       // FIXME: This part causes breakages in mods like 3d_armor, and has been commented for now
-       // if (m_activeobjects_received && player->isDead())
-       //      return;
+       if (m_activeobjects_received && player->isDead())
+               return;
 
        if (
                        player->last_position     == player->getPosition() &&
@@ -1272,7 +1343,7 @@ void Client::sendPlayerPos()
                        player->last_pitch        == player->getPitch()    &&
                        player->last_yaw          == player->getYaw()      &&
                        player->last_keyPressed   == player->keyPressed    &&
-                       player->last_camera_fov   == camera_fov              &&
+                       player->last_camera_fov   == camera_fov            &&
                        player->last_wanted_range == wanted_range)
                return;
 
@@ -1313,7 +1384,7 @@ void Client::removeNode(v3s16 p)
  * @param is_valid_position
  * @return
  */
-MapNode Client::getNode(v3s16 p, bool *is_valid_position)
+MapNode Client::CSMGetNode(v3s16 p, bool *is_valid_position)
 {
        if (checkCSMRestrictionFlag(CSMRestrictionFlags::CSM_RF_LOOKUP_NODES)) {
                v3s16 ppos = floatToInt(m_env.getLocalPlayer()->getPosition(), BS);
@@ -1325,6 +1396,31 @@ MapNode Client::getNode(v3s16 p, bool *is_valid_position)
        return m_env.getMap().getNode(p, is_valid_position);
 }
 
+int Client::CSMClampRadius(v3s16 pos, int radius)
+{
+       if (!checkCSMRestrictionFlag(CSMRestrictionFlags::CSM_RF_LOOKUP_NODES))
+               return radius;
+       // This is approximate and will cause some allowed nodes to be excluded
+       v3s16 ppos = floatToInt(m_env.getLocalPlayer()->getPosition(), BS);
+       u32 distance = ppos.getDistanceFrom(pos);
+       if (distance >= m_csm_restriction_noderange)
+               return 0;
+       return std::min<int>(radius, m_csm_restriction_noderange - distance);
+}
+
+v3s16 Client::CSMClampPos(v3s16 pos)
+{
+       if (!checkCSMRestrictionFlag(CSMRestrictionFlags::CSM_RF_LOOKUP_NODES))
+               return pos;
+       v3s16 ppos = floatToInt(m_env.getLocalPlayer()->getPosition(), BS);
+       const int range = m_csm_restriction_noderange;
+       return v3s16(
+               core::clamp<int>(pos.X, (int)ppos.X - range, (int)ppos.X + range),
+               core::clamp<int>(pos.Y, (int)ppos.Y - range, (int)ppos.Y + range),
+               core::clamp<int>(pos.Z, (int)ppos.Z - range, (int)ppos.Z + range)
+       );
+}
+
 void Client::addNode(v3s16 p, MapNode n, bool remove_metadata)
 {
        //TimeTaker timer1("Client::addNode()");
@@ -1379,6 +1475,11 @@ bool Client::updateWieldedItem()
        return true;
 }
 
+irr::scene::ISceneManager* Client::getSceneManager()
+{
+       return m_rendering_engine->get_scene_manager();
+}
+
 Inventory* Client::getInventory(const InventoryLocation &loc)
 {
        switch(loc.type){
@@ -1609,11 +1710,6 @@ ClientEvent *Client::getClientEvent()
        return event;
 }
 
-bool Client::connectedToServer()
-{
-       return m_con->Connected();
-}
-
 const Address Client::getServerAddress()
 {
        return m_con->GetPeerAddress(PEER_ID_SERVER);
@@ -1675,24 +1771,27 @@ void Client::afterContentReceived()
 
        // Rebuild inherited images and recreate textures
        infostream<<"- Rebuilding images and textures"<<std::endl;
-       RenderingEngine::draw_load_screen(text, guienv, m_tsrc, 0, 70);
+       m_rendering_engine->draw_load_screen(text, guienv, m_tsrc, 0, 70);
        m_tsrc->rebuildImagesAndTextures();
        delete[] text;
 
        // Rebuild shaders
        infostream<<"- Rebuilding shaders"<<std::endl;
        text = wgettext("Rebuilding shaders...");
-       RenderingEngine::draw_load_screen(text, guienv, m_tsrc, 0, 71);
+       m_rendering_engine->draw_load_screen(text, guienv, m_tsrc, 0, 71);
        m_shsrc->rebuildShaders();
        delete[] text;
 
        // Update node aliases
        infostream<<"- Updating node aliases"<<std::endl;
        text = wgettext("Initializing nodes...");
-       RenderingEngine::draw_load_screen(text, guienv, m_tsrc, 0, 72);
+       m_rendering_engine->draw_load_screen(text, guienv, m_tsrc, 0, 72);
        m_nodedef->updateAliases(m_itemdef);
-       for (const auto &path : getTextureDirs())
-               m_nodedef->applyTextureOverrides(path + DIR_DELIM + "override.txt");
+       for (const auto &path : getTextureDirs()) {
+               TextureOverrideSource override_source(path + DIR_DELIM + "override.txt");
+               m_nodedef->applyTextureOverrides(override_source.getNodeTileOverrides());
+               m_itemdef->applyTextureOverrides(override_source.getItemTextureOverrides());
+       }
        m_nodedef->setNodeRegistrationStatus(true);
        m_nodedef->runNodeResolveCallbacks();
        delete[] text;
@@ -1719,7 +1818,7 @@ void Client::afterContentReceived()
                m_script->on_client_ready(m_env.getLocalPlayer());
 
        text = wgettext("Done!");
-       RenderingEngine::draw_load_screen(text, guienv, m_tsrc, 0, 100);
+       m_rendering_engine->draw_load_screen(text, guienv, m_tsrc, 0, 100);
        infostream<<"Client::afterContentReceived() done"<<std::endl;
        delete[] text;
 }
@@ -1737,7 +1836,7 @@ float Client::getCurRate()
 
 void Client::makeScreenshot()
 {
-       irr::video::IVideoDriver *driver = RenderingEngine::get_video_driver();
+       irr::video::IVideoDriver *driver = m_rendering_engine->get_video_driver();
        irr::video::IImage* const raw_image = driver->createScreenShot();
 
        if (!raw_image)
@@ -1749,13 +1848,24 @@ void Client::makeScreenshot()
        char timetstamp_c[64];
        strftime(timetstamp_c, sizeof(timetstamp_c), "%Y%m%d_%H%M%S", tm);
 
-       std::string filename_base = g_settings->get("screenshot_path")
+       std::string screenshot_dir;
+
+       if (fs::IsPathAbsolute(g_settings->get("screenshot_path")))
+               screenshot_dir = g_settings->get("screenshot_path");
+       else
+               screenshot_dir = porting::path_user + DIR_DELIM + g_settings->get("screenshot_path");
+
+       std::string filename_base = screenshot_dir
                        + DIR_DELIM
                        + std::string("screenshot_")
                        + std::string(timetstamp_c);
        std::string filename_ext = "." + g_settings->get("screenshot_format");
        std::string filename;
 
+       // Create the directory if it doesn't already exist.
+       // Otherwise, saving the screenshot would fail.
+       fs::CreateDir(screenshot_dir);
+
        u32 quality = (u32)g_settings->getS32("screenshot_quality");
        quality = MYMIN(MYMAX(quality, 0), 100) / 100.0 * 255;
 
@@ -1786,7 +1896,7 @@ void Client::makeScreenshot()
                                sstr << "Failed to save screenshot '" << filename << "'";
                        }
                        pushToChatQueue(new ChatMessage(CHATMESSAGE_TYPE_SYSTEM,
-                                       narrow_to_wide(sstr.str())));
+                                       utf8_to_wide(sstr.str())));
                        infostream << sstr.str() << std::endl;
                        image->drop();
                }
@@ -1829,7 +1939,7 @@ ITextureSource* Client::getTextureSource()
 {
        return m_tsrc;
 }
-IShaderSource* Client::getShaderSource()
+IWritableShaderSource* Client::getShaderSource()
 {
        return m_shsrc;
 }
@@ -1868,21 +1978,31 @@ scene::IAnimatedMesh* Client::getMesh(const std::string &filename, bool cache)
 
        // Create the mesh, remove it from cache and return it
        // This allows unique vertex colors and other properties for each instance
-       Buffer<char> data_rw(data.c_str(), data.size()); // Const-incorrect Irrlicht
-       io::IReadFile *rfile   = RenderingEngine::get_filesystem()->createMemoryReadFile(
-                       *data_rw, data_rw.getSize(), filename.c_str());
+       io::IReadFile *rfile = m_rendering_engine->get_filesystem()->createMemoryReadFile(
+                       data.c_str(), data.size(), filename.c_str());
        FATAL_ERROR_IF(!rfile, "Could not create/open RAM file");
 
-       scene::IAnimatedMesh *mesh = RenderingEngine::get_scene_manager()->getMesh(rfile);
+       scene::IAnimatedMesh *mesh = m_rendering_engine->get_scene_manager()->getMesh(rfile);
        rfile->drop();
+       if (!mesh)
+               return nullptr;
        mesh->grab();
        if (!cache)
-               RenderingEngine::get_mesh_cache()->removeMesh(mesh);
+               m_rendering_engine->removeMesh(mesh);
        return mesh;
 }
 
-const std::string* Client::getModFile(const std::string &filename)
+const std::string* Client::getModFile(std::string filename)
 {
+       // strip dir delimiter from beginning of path
+       auto pos = filename.find_first_of(':');
+       if (pos == std::string::npos)
+               return nullptr;
+       pos++;
+       auto pos2 = filename.find_first_not_of('/', pos);
+       if (pos2 > pos)
+               filename.erase(pos, pos2 - pos);
+
        StringMap::const_iterator it = m_mod_vfs.find(filename);
        if (it == m_mod_vfs.end())
                return nullptr;