3 Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU Lesser General Public License as published by
7 the Free Software Foundation; either version 2.1 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public License along
16 with this program; if not, write to the Free Software Foundation, Inc.,
17 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
23 #include <IFileSystem.h>
24 #include "jthread/jmutexautolock.h"
25 #include "util/auth.h"
26 #include "util/directiontables.h"
27 #include "util/pointedthing.h"
28 #include "util/serialize.h"
29 #include "util/string.h"
32 #include "network/clientopcodes.h"
35 #include "mapblock_mesh.h"
42 #include "nodemetadata.h"
45 #include "clientmap.h"
46 #include "clientmedia.h"
48 #include "IMeshCache.h"
51 #include "drawscene.h"
52 #include "database-sqlite3.h"
53 #include "serialization.h"
54 #include "guiscalingfilter.h"
56 extern gui::IGUIEnvironment* guienv;
62 QueuedMeshUpdate::QueuedMeshUpdate():
65 ack_block_to_server(false)
69 QueuedMeshUpdate::~QueuedMeshUpdate()
79 MeshUpdateQueue::MeshUpdateQueue()
83 MeshUpdateQueue::~MeshUpdateQueue()
85 JMutexAutoLock lock(m_mutex);
87 for(std::vector<QueuedMeshUpdate*>::iterator
89 i != m_queue.end(); i++)
91 QueuedMeshUpdate *q = *i;
97 peer_id=0 adds with nobody to send to
99 void MeshUpdateQueue::addBlock(v3s16 p, MeshMakeData *data, bool ack_block_to_server, bool urgent)
101 DSTACK(__FUNCTION_NAME);
103 assert(data); // pre-condition
105 JMutexAutoLock lock(m_mutex);
111 Find if block is already in queue.
112 If it is, update the data and quit.
114 for(std::vector<QueuedMeshUpdate*>::iterator
116 i != m_queue.end(); i++)
118 QueuedMeshUpdate *q = *i;
124 if(ack_block_to_server)
125 q->ack_block_to_server = true;
133 QueuedMeshUpdate *q = new QueuedMeshUpdate;
136 q->ack_block_to_server = ack_block_to_server;
137 m_queue.push_back(q);
140 // Returned pointer must be deleted
141 // Returns NULL if queue is empty
142 QueuedMeshUpdate *MeshUpdateQueue::pop()
144 JMutexAutoLock lock(m_mutex);
146 bool must_be_urgent = !m_urgents.empty();
147 for(std::vector<QueuedMeshUpdate*>::iterator
149 i != m_queue.end(); i++)
151 QueuedMeshUpdate *q = *i;
152 if(must_be_urgent && m_urgents.count(q->p) == 0)
155 m_urgents.erase(q->p);
165 void MeshUpdateThread::enqueueUpdate(v3s16 p, MeshMakeData *data,
166 bool ack_block_to_server, bool urgent)
168 m_queue_in.addBlock(p, data, ack_block_to_server, urgent);
172 void MeshUpdateThread::doUpdate()
175 while ((q = m_queue_in.pop())) {
177 ScopeProfiler sp(g_profiler, "Client: Mesh making");
179 MapBlockMesh *mesh_new = new MapBlockMesh(q->data, m_camera_offset);
184 r.ack_block_to_server = q->ack_block_to_server;
186 m_queue_out.push_back(r);
197 IrrlichtDevice *device,
198 const char *playername,
199 std::string password,
200 MapDrawControl &control,
201 IWritableTextureSource *tsrc,
202 IWritableShaderSource *shsrc,
203 IWritableItemDefManager *itemdef,
204 IWritableNodeDefManager *nodedef,
205 ISoundManager *sound,
206 MtEventManager *event,
209 m_packetcounter_timer(0.0),
210 m_connection_reinit_timer(0.1),
211 m_avg_rtt_timer(0.0),
212 m_playerpos_send_timer(0.0),
213 m_ignore_damage_timer(0.0),
220 m_mesh_update_thread(),
222 new ClientMap(this, this, control,
223 device->getSceneManager()->getRootSceneNode(),
224 device->getSceneManager(), 666),
225 device->getSceneManager(),
228 m_particle_manager(&m_env),
229 m_con(PROTOCOL_ID, 512, CONNECTION_TIMEOUT, ipv6, this),
231 m_server_ser_ver(SER_FMT_VER_INVALID),
234 m_inventory_updated(false),
235 m_inventory_from_server(NULL),
236 m_inventory_from_server_age(0.0),
237 m_show_highlighted(false),
241 m_highlighted_pos(0,0,0),
243 m_password(password),
244 m_chosen_auth_mech(AUTH_MECHANISM_NONE),
246 m_access_denied(false),
247 m_itemdef_received(false),
248 m_nodedef_received(false),
249 m_media_downloader(new ClientMediaDownloader()),
250 m_time_of_day_set(false),
251 m_last_time_of_day_f(-1),
252 m_time_of_day_update_timer(0),
253 m_recommended_send_interval(0.1),
254 m_removed_sounds_check_timer(0),
259 m_env.addPlayer(new LocalPlayer(this, playername));
261 m_mapper = new Mapper(device, this);
262 m_cache_save_interval = g_settings->getU16("server_map_save_interval");
264 m_cache_smooth_lighting = g_settings->getBool("smooth_lighting");
265 m_cache_enable_shaders = g_settings->getBool("enable_shaders");
270 //request all client managed threads to stop
271 m_mesh_update_thread.Stop();
272 // Save local server map
274 infostream << "Local map saving ended." << std::endl;
275 m_localdb->endSave();
279 bool Client::isShutdown()
282 if (!m_mesh_update_thread.IsRunning()) return true;
291 m_mesh_update_thread.Stop();
292 m_mesh_update_thread.Wait();
293 while(!m_mesh_update_thread.m_queue_out.empty()) {
294 MeshUpdateResult r = m_mesh_update_thread.m_queue_out.pop_frontNoEx();
299 delete m_inventory_from_server;
301 // Delete detached inventories
302 for(std::map<std::string, Inventory*>::iterator
303 i = m_detached_inventories.begin();
304 i != m_detached_inventories.end(); i++){
308 // cleanup 3d model meshes on client shutdown
309 while (m_device->getSceneManager()->getMeshCache()->getMeshCount() != 0) {
310 scene::IAnimatedMesh * mesh =
311 m_device->getSceneManager()->getMeshCache()->getMeshByIndex(0);
314 m_device->getSceneManager()->getMeshCache()->removeMesh(mesh);
318 void Client::connect(Address address,
319 const std::string &address_name,
320 bool is_local_server)
322 DSTACK(__FUNCTION_NAME);
324 initLocalMapSaving(address, address_name, is_local_server);
326 m_con.SetTimeoutMs(0);
327 m_con.Connect(address);
330 void Client::step(float dtime)
332 DSTACK(__FUNCTION_NAME);
338 if(m_ignore_damage_timer > dtime)
339 m_ignore_damage_timer -= dtime;
341 m_ignore_damage_timer = 0.0;
343 m_animation_time += dtime;
344 if(m_animation_time > 60.0)
345 m_animation_time -= 60.0;
347 m_time_of_day_update_timer += dtime;
355 float &counter = m_packetcounter_timer;
361 infostream << "Client packetcounter (" << m_packetcounter_timer
363 m_packetcounter.print(infostream);
364 m_packetcounter.clear();
368 // UGLY hack to fix 2 second startup delay caused by non existent
369 // server client startup synchronization in local server or singleplayer mode
370 static bool initial_step = true;
372 initial_step = false;
374 else if(m_state == LC_Created) {
375 float &counter = m_connection_reinit_timer;
380 Player *myplayer = m_env.getLocalPlayer();
381 FATAL_ERROR_IF(myplayer == NULL, "Local player not found in environment.");
383 // Send TOSERVER_INIT_LEGACY
384 // [0] u16 TOSERVER_INIT_LEGACY
385 // [2] u8 SER_FMT_VER_HIGHEST_READ
386 // [3] u8[20] player_name
387 // [23] u8[28] password (new in some version)
388 // [51] u16 minimum supported network protocol version (added sometime)
389 // [53] u16 maximum supported network protocol version (added later than the previous one)
391 char pName[PLAYERNAME_SIZE];
392 char pPassword[PASSWORD_SIZE];
393 memset(pName, 0, PLAYERNAME_SIZE * sizeof(char));
394 memset(pPassword, 0, PASSWORD_SIZE * sizeof(char));
396 std::string hashed_password = translatePassword(myplayer->getName(), m_password);
397 snprintf(pName, PLAYERNAME_SIZE, "%s", myplayer->getName());
398 snprintf(pPassword, PASSWORD_SIZE, "%s", hashed_password.c_str());
400 sendLegacyInit(pName, pPassword);
401 if (LATEST_PROTOCOL_VERSION >= 25)
402 sendInit(myplayer->getName());
405 // Not connected, return
410 Do stuff if connected
414 Run Map's timers and unload unused data
416 const float map_timer_and_unload_dtime = 5.25;
417 if(m_map_timer_and_unload_interval.step(dtime, map_timer_and_unload_dtime)) {
418 ScopeProfiler sp(g_profiler, "Client: map timer and unload");
419 std::vector<v3s16> deleted_blocks;
420 m_env.getMap().timerUpdate(map_timer_and_unload_dtime,
421 g_settings->getFloat("client_unload_unused_data_timeout"),
426 NOTE: This loop is intentionally iterated the way it is.
429 std::vector<v3s16>::iterator i = deleted_blocks.begin();
430 std::vector<v3s16> sendlist;
432 if(sendlist.size() == 255 || i == deleted_blocks.end()) {
443 sendDeletedBlocks(sendlist);
445 if(i == deleted_blocks.end())
451 sendlist.push_back(*i);
459 // Control local player (0ms)
460 LocalPlayer *player = m_env.getLocalPlayer();
461 assert(player != NULL);
462 player->applyControl(dtime);
471 ClientEnvEvent event = m_env.getClientEvent();
472 if(event.type == CEE_NONE) {
475 else if(event.type == CEE_PLAYER_DAMAGE) {
476 if(m_ignore_damage_timer <= 0) {
477 u8 damage = event.player_damage.amount;
479 if(event.player_damage.send_to_server)
482 // Add to ClientEvent queue
484 event.type = CE_PLAYER_DAMAGE;
485 event.player_damage.amount = damage;
486 m_client_event_queue.push(event);
489 else if(event.type == CEE_PLAYER_BREATH) {
490 u16 breath = event.player_breath.amount;
498 float &counter = m_avg_rtt_timer;
502 // connectedAndInitialized() is true, peer exists.
503 float avg_rtt = getRTT();
504 infostream << "Client: avg_rtt=" << avg_rtt << std::endl;
508 Send player position to server
511 float &counter = m_playerpos_send_timer;
513 if((m_state == LC_Ready) && (counter >= m_recommended_send_interval))
521 Replace updated meshes
524 int num_processed_meshes = 0;
525 while (!m_mesh_update_thread.m_queue_out.empty())
527 num_processed_meshes++;
529 MinimapMapblock *minimap_mapblock = NULL;
530 bool do_mapper_update = true;
532 MeshUpdateResult r = m_mesh_update_thread.m_queue_out.pop_frontNoEx();
533 MapBlock *block = m_env.getMap().getBlockNoCreateNoEx(r.p);
535 // Delete the old mesh
536 if (block->mesh != NULL) {
542 minimap_mapblock = r.mesh->getMinimapMapblock();
543 do_mapper_update = (minimap_mapblock != NULL);
546 if (r.mesh && r.mesh->getMesh()->getMeshBufferCount() == 0) {
550 // Replace with the new mesh
551 block->mesh = r.mesh;
555 minimap_mapblock = NULL;
558 if (do_mapper_update)
559 m_mapper->addBlock(r.p, minimap_mapblock);
561 if (r.ack_block_to_server) {
571 if (num_processed_meshes > 0)
572 g_profiler->graphAdd("num_processed_meshes", num_processed_meshes);
578 if (m_media_downloader && m_media_downloader->isStarted()) {
579 m_media_downloader->step(this);
580 if (m_media_downloader->isDone()) {
582 delete m_media_downloader;
583 m_media_downloader = NULL;
588 If the server didn't update the inventory in a while, revert
589 the local inventory (so the player notices the lag problem
590 and knows something is wrong).
592 if(m_inventory_from_server)
594 float interval = 10.0;
595 float count_before = floor(m_inventory_from_server_age / interval);
597 m_inventory_from_server_age += dtime;
599 float count_after = floor(m_inventory_from_server_age / interval);
601 if(count_after != count_before)
603 // Do this every <interval> seconds after TOCLIENT_INVENTORY
604 // Reset the locally changed inventory to the authoritative inventory
605 Player *player = m_env.getLocalPlayer();
606 player->inventory = *m_inventory_from_server;
607 m_inventory_updated = true;
612 Update positions of sounds attached to objects
615 for(std::map<int, u16>::iterator
616 i = m_sounds_to_objects.begin();
617 i != m_sounds_to_objects.end(); i++)
619 int client_id = i->first;
620 u16 object_id = i->second;
621 ClientActiveObject *cao = m_env.getActiveObject(object_id);
624 v3f pos = cao->getPosition();
625 m_sound->updateSoundPosition(client_id, pos);
630 Handle removed remotely initiated sounds
632 m_removed_sounds_check_timer += dtime;
633 if(m_removed_sounds_check_timer >= 2.32) {
634 m_removed_sounds_check_timer = 0;
635 // Find removed sounds and clear references to them
636 std::vector<s32> removed_server_ids;
637 for(std::map<s32, int>::iterator
638 i = m_sounds_server_to_client.begin();
639 i != m_sounds_server_to_client.end();) {
640 s32 server_id = i->first;
641 int client_id = i->second;
643 if(!m_sound->soundExists(client_id)) {
644 m_sounds_server_to_client.erase(server_id);
645 m_sounds_client_to_server.erase(client_id);
646 m_sounds_to_objects.erase(client_id);
647 removed_server_ids.push_back(server_id);
652 if(!removed_server_ids.empty()) {
653 sendRemovedSounds(removed_server_ids);
658 if (m_localdb && m_localdb_save_interval.step(dtime,
659 m_cache_save_interval)) {
660 m_localdb->endSave();
661 m_localdb->beginSave();
665 bool Client::loadMedia(const std::string &data, const std::string &filename)
667 // Silly irrlicht's const-incorrectness
668 Buffer<char> data_rw(data.c_str(), data.size());
672 const char *image_ext[] = {
673 ".png", ".jpg", ".bmp", ".tga",
674 ".pcx", ".ppm", ".psd", ".wal", ".rgb",
677 name = removeStringEnd(filename, image_ext);
680 verbosestream<<"Client: Attempting to load image "
681 <<"file \""<<filename<<"\""<<std::endl;
683 io::IFileSystem *irrfs = m_device->getFileSystem();
684 video::IVideoDriver *vdrv = m_device->getVideoDriver();
686 // Create an irrlicht memory file
687 io::IReadFile *rfile = irrfs->createMemoryReadFile(
688 *data_rw, data_rw.getSize(), "_tempreadfile");
690 FATAL_ERROR_IF(!rfile, "Could not create irrlicht memory file.");
693 video::IImage *img = vdrv->createImageFromFile(rfile);
695 errorstream<<"Client: Cannot create image from data of "
696 <<"file \""<<filename<<"\""<<std::endl;
701 m_tsrc->insertSourceImage(filename, img);
708 const char *sound_ext[] = {
709 ".0.ogg", ".1.ogg", ".2.ogg", ".3.ogg", ".4.ogg",
710 ".5.ogg", ".6.ogg", ".7.ogg", ".8.ogg", ".9.ogg",
713 name = removeStringEnd(filename, sound_ext);
716 verbosestream<<"Client: Attempting to load sound "
717 <<"file \""<<filename<<"\""<<std::endl;
718 m_sound->loadSoundData(name, data);
722 const char *model_ext[] = {
723 ".x", ".b3d", ".md2", ".obj",
726 name = removeStringEnd(filename, model_ext);
729 verbosestream<<"Client: Storing model into memory: "
730 <<"\""<<filename<<"\""<<std::endl;
731 if(m_mesh_data.count(filename))
732 errorstream<<"Multiple models with name \""<<filename.c_str()
733 <<"\" found; replacing previous model"<<std::endl;
734 m_mesh_data[filename] = data;
738 errorstream<<"Client: Don't know how to load file \""
739 <<filename<<"\""<<std::endl;
743 // Virtual methods from con::PeerHandler
744 void Client::peerAdded(con::Peer *peer)
746 infostream<<"Client::peerAdded(): peer->id="
747 <<peer->id<<std::endl;
749 void Client::deletingPeer(con::Peer *peer, bool timeout)
751 infostream<<"Client::deletingPeer(): "
752 "Server Peer is getting deleted "
753 <<"(timeout="<<timeout<<")"<<std::endl;
758 u16 number of files requested
764 void Client::request_media(const std::vector<std::string> &file_requests)
766 std::ostringstream os(std::ios_base::binary);
767 writeU16(os, TOSERVER_REQUEST_MEDIA);
768 size_t file_requests_size = file_requests.size();
770 FATAL_ERROR_IF(file_requests_size > 0xFFFF, "Unsupported number of file requests");
772 // Packet dynamicly resized
773 NetworkPacket pkt(TOSERVER_REQUEST_MEDIA, 2 + 0);
775 pkt << (u16) (file_requests_size & 0xFFFF);
777 for(std::vector<std::string>::const_iterator i = file_requests.begin();
778 i != file_requests.end(); ++i) {
784 infostream << "Client: Sending media request list to server ("
785 << file_requests.size() << " files. packet size)" << std::endl;
788 void Client::received_media()
790 NetworkPacket pkt(TOSERVER_RECEIVED_MEDIA, 0);
792 infostream << "Client: Notifying server that we received all media"
796 void Client::initLocalMapSaving(const Address &address,
797 const std::string &hostname,
798 bool is_local_server)
800 if (!g_settings->getBool("enable_local_map_saving") || is_local_server) {
804 const std::string world_path = porting::path_user
805 + DIR_DELIM + "worlds"
806 + DIR_DELIM + "server_"
807 + hostname + "_" + to_string(address.getPort());
809 fs::CreateAllDirs(world_path);
811 m_localdb = new Database_SQLite3(world_path);
812 m_localdb->beginSave();
813 actionstream << "Local map saving started, map will be saved at '" << world_path << "'" << std::endl;
816 void Client::ReceiveAll()
818 DSTACK(__FUNCTION_NAME);
819 u32 start_ms = porting::getTimeMs();
822 // Limit time even if there would be huge amounts of data to
824 if(porting::getTimeMs() > start_ms + 100)
829 g_profiler->graphAdd("client_received_packets", 1);
831 catch(con::NoIncomingDataException &e) {
834 catch(con::InvalidIncomingDataException &e) {
835 infostream<<"Client::ReceiveAll(): "
836 "InvalidIncomingDataException: what()="
837 <<e.what()<<std::endl;
842 void Client::Receive()
844 DSTACK(__FUNCTION_NAME);
850 inline void Client::handleCommand(NetworkPacket* pkt)
852 const ToClientCommandHandler& opHandle = toClientCommandTable[pkt->getCommand()];
853 (this->*opHandle.handler)(pkt);
857 sender_peer_id given to this shall be quaranteed to be a valid peer
859 void Client::ProcessData(NetworkPacket *pkt)
861 DSTACK(__FUNCTION_NAME);
863 ToClientCommand command = (ToClientCommand) pkt->getCommand();
864 u32 sender_peer_id = pkt->getPeerId();
866 //infostream<<"Client: received command="<<command<<std::endl;
867 m_packetcounter.add((u16)command);
870 If this check is removed, be sure to change the queue
871 system to know the ids
873 if(sender_peer_id != PEER_ID_SERVER) {
874 infostream << "Client::ProcessData(): Discarding data not "
875 "coming from server: peer_id=" << sender_peer_id
880 // Command must be handled into ToClientCommandHandler
881 if (command >= TOCLIENT_NUM_MSG_TYPES) {
882 infostream << "Client: Ignoring unknown command "
883 << command << std::endl;
888 * Those packets are handled before m_server_ser_ver is set, it's normal
889 * But we must use the new ToClientConnectionState in the future,
892 if(toClientCommandTable[command].state == TOCLIENT_STATE_NOT_CONNECTED) {
897 if(m_server_ser_ver == SER_FMT_VER_INVALID) {
898 infostream << "Client: Server serialization"
899 " format invalid or not initialized."
900 " Skipping incoming command=" << command << std::endl;
905 Handle runtime commands
911 void Client::Send(NetworkPacket* pkt)
913 m_con.Send(PEER_ID_SERVER,
914 serverCommandFactoryTable[pkt->getCommand()].channel,
916 serverCommandFactoryTable[pkt->getCommand()].reliable);
919 void Client::interact(u8 action, const PointedThing& pointed)
921 if(m_state != LC_Ready) {
922 errorstream << "Client::interact() "
923 "Canceled (not connected)"
932 [5] u32 length of the next item
933 [9] serialized PointedThing
935 0: start digging (from undersurface) or use
936 1: stop digging (all parameters ignored)
938 3: place block or item (to abovesurface)
942 NetworkPacket pkt(TOSERVER_INTERACT, 1 + 2 + 0);
945 pkt << (u16)getPlayerItem();
947 std::ostringstream tmp_os(std::ios::binary);
948 pointed.serialize(tmp_os);
950 pkt.putLongString(tmp_os.str());
955 void Client::deleteAuthData()
960 switch (m_chosen_auth_mech) {
961 case AUTH_MECHANISM_FIRST_SRP:
963 case AUTH_MECHANISM_SRP:
964 case AUTH_MECHANISM_LEGACY_PASSWORD:
965 srp_user_delete((SRPUser *) m_auth_data);
968 case AUTH_MECHANISM_NONE:
974 AuthMechanism Client::choseAuthMech(const u32 mechs)
976 if (mechs & AUTH_MECHANISM_SRP)
977 return AUTH_MECHANISM_SRP;
979 if (mechs & AUTH_MECHANISM_FIRST_SRP)
980 return AUTH_MECHANISM_FIRST_SRP;
982 if (mechs & AUTH_MECHANISM_LEGACY_PASSWORD)
983 return AUTH_MECHANISM_LEGACY_PASSWORD;
985 return AUTH_MECHANISM_NONE;
988 void Client::sendLegacyInit(const char* playerName, const char* playerPassword)
990 NetworkPacket pkt(TOSERVER_INIT_LEGACY,
991 1 + PLAYERNAME_SIZE + PASSWORD_SIZE + 2 + 2);
993 pkt << (u8) SER_FMT_VER_HIGHEST_READ;
994 pkt.putRawString(playerName,PLAYERNAME_SIZE);
995 pkt.putRawString(playerPassword, PASSWORD_SIZE);
996 pkt << (u16) CLIENT_PROTOCOL_VERSION_MIN << (u16) CLIENT_PROTOCOL_VERSION_MAX;
1001 void Client::sendInit(const std::string &playerName)
1003 NetworkPacket pkt(TOSERVER_INIT, 1 + 2 + 2 + (1 + playerName.size()));
1005 // we don't support network compression yet
1006 u16 supp_comp_modes = NETPROTO_COMPRESSION_NONE;
1007 pkt << (u8) SER_FMT_VER_HIGHEST_READ << (u16) supp_comp_modes;
1008 pkt << (u16) CLIENT_PROTOCOL_VERSION_MIN << (u16) CLIENT_PROTOCOL_VERSION_MAX;
1014 void Client::startAuth(AuthMechanism chosen_auth_mechanism)
1016 m_chosen_auth_mech = chosen_auth_mechanism;
1018 switch (chosen_auth_mechanism) {
1019 case AUTH_MECHANISM_FIRST_SRP: {
1020 // send srp verifier to server
1021 NetworkPacket resp_pkt(TOSERVER_FIRST_SRP, 0);
1022 char *salt, *bytes_v;
1023 std::size_t len_salt, len_v;
1025 getSRPVerifier(getPlayerName(), m_password,
1026 &salt, &len_salt, &bytes_v, &len_v);
1028 << std::string((char*)salt, len_salt)
1029 << std::string((char*)bytes_v, len_v)
1030 << (u8)((m_password == "") ? 1 : 0);
1036 case AUTH_MECHANISM_SRP:
1037 case AUTH_MECHANISM_LEGACY_PASSWORD: {
1040 if (chosen_auth_mechanism == AUTH_MECHANISM_LEGACY_PASSWORD) {
1041 m_password = translatePassword(getPlayerName(), m_password);
1045 std::string playername_u = lowercase(getPlayerName());
1046 m_auth_data = srp_user_new(SRP_SHA256, SRP_NG_2048,
1047 getPlayerName().c_str(), playername_u.c_str(),
1048 (const unsigned char *) m_password.c_str(),
1049 m_password.length(), NULL, NULL);
1052 srp_user_start_authentication((struct SRPUser *) m_auth_data,
1053 NULL, NULL, 0, (unsigned char **) &bytes_A, &len_A);
1055 NetworkPacket resp_pkt(TOSERVER_SRP_BYTES_A, 0);
1056 resp_pkt << std::string(bytes_A, len_A) << based_on;
1061 case AUTH_MECHANISM_NONE:
1062 break; // not handled in this method
1066 void Client::sendDeletedBlocks(std::vector<v3s16> &blocks)
1068 NetworkPacket pkt(TOSERVER_DELETEDBLOCKS, 1 + sizeof(v3s16) * blocks.size());
1070 pkt << (u8) blocks.size();
1073 for(std::vector<v3s16>::iterator
1075 j != blocks.end(); ++j) {
1083 void Client::sendGotBlocks(v3s16 block)
1085 NetworkPacket pkt(TOSERVER_GOTBLOCKS, 1 + 6);
1086 pkt << (u8) 1 << block;
1090 void Client::sendRemovedSounds(std::vector<s32> &soundList)
1092 size_t server_ids = soundList.size();
1093 assert(server_ids <= 0xFFFF);
1095 NetworkPacket pkt(TOSERVER_REMOVED_SOUNDS, 2 + server_ids * 4);
1097 pkt << (u16) (server_ids & 0xFFFF);
1099 for(std::vector<s32>::iterator i = soundList.begin();
1100 i != soundList.end(); i++)
1106 void Client::sendNodemetaFields(v3s16 p, const std::string &formname,
1107 const StringMap &fields)
1109 size_t fields_size = fields.size();
1111 FATAL_ERROR_IF(fields_size > 0xFFFF, "Unsupported number of nodemeta fields");
1113 NetworkPacket pkt(TOSERVER_NODEMETA_FIELDS, 0);
1115 pkt << p << formname << (u16) (fields_size & 0xFFFF);
1117 StringMap::const_iterator it;
1118 for (it = fields.begin(); it != fields.end(); ++it) {
1119 const std::string &name = it->first;
1120 const std::string &value = it->second;
1122 pkt.putLongString(value);
1128 void Client::sendInventoryFields(const std::string &formname,
1129 const StringMap &fields)
1131 size_t fields_size = fields.size();
1132 FATAL_ERROR_IF(fields_size > 0xFFFF, "Unsupported number of inventory fields");
1134 NetworkPacket pkt(TOSERVER_INVENTORY_FIELDS, 0);
1135 pkt << formname << (u16) (fields_size & 0xFFFF);
1137 StringMap::const_iterator it;
1138 for (it = fields.begin(); it != fields.end(); ++it) {
1139 const std::string &name = it->first;
1140 const std::string &value = it->second;
1142 pkt.putLongString(value);
1148 void Client::sendInventoryAction(InventoryAction *a)
1150 std::ostringstream os(std::ios_base::binary);
1155 std::string s = os.str();
1157 NetworkPacket pkt(TOSERVER_INVENTORY_ACTION, s.size());
1158 pkt.putRawString(s.c_str(),s.size());
1163 void Client::sendChatMessage(const std::wstring &message)
1165 NetworkPacket pkt(TOSERVER_CHAT_MESSAGE, 2 + message.size() * sizeof(u16));
1172 void Client::sendChangePassword(const std::string &oldpassword,
1173 const std::string &newpassword)
1175 Player *player = m_env.getLocalPlayer();
1179 std::string playername = player->getName();
1180 if (m_proto_ver >= 25) {
1181 // get into sudo mode and then send new password to server
1182 m_password = oldpassword;
1183 m_new_password = newpassword;
1184 startAuth(choseAuthMech(m_sudo_auth_methods));
1186 std::string oldpwd = translatePassword(playername, oldpassword);
1187 std::string newpwd = translatePassword(playername, newpassword);
1189 NetworkPacket pkt(TOSERVER_PASSWORD_LEGACY, 2 * PASSWORD_SIZE);
1191 for (u8 i = 0; i < PASSWORD_SIZE; i++) {
1192 pkt << (u8) (i < oldpwd.length() ? oldpwd[i] : 0);
1195 for (u8 i = 0; i < PASSWORD_SIZE; i++) {
1196 pkt << (u8) (i < newpwd.length() ? newpwd[i] : 0);
1203 void Client::sendDamage(u8 damage)
1205 DSTACK(__FUNCTION_NAME);
1207 NetworkPacket pkt(TOSERVER_DAMAGE, sizeof(u8));
1212 void Client::sendBreath(u16 breath)
1214 DSTACK(__FUNCTION_NAME);
1216 NetworkPacket pkt(TOSERVER_BREATH, sizeof(u16));
1221 void Client::sendRespawn()
1223 DSTACK(__FUNCTION_NAME);
1225 NetworkPacket pkt(TOSERVER_RESPAWN, 0);
1229 void Client::sendReady()
1231 DSTACK(__FUNCTION_NAME);
1233 NetworkPacket pkt(TOSERVER_CLIENT_READY,
1234 1 + 1 + 1 + 1 + 2 + sizeof(char) * strlen(g_version_hash));
1236 pkt << (u8) VERSION_MAJOR << (u8) VERSION_MINOR << (u8) VERSION_PATCH
1237 << (u8) 0 << (u16) strlen(g_version_hash);
1239 pkt.putRawString(g_version_hash, (u16) strlen(g_version_hash));
1243 void Client::sendPlayerPos()
1245 LocalPlayer *myplayer = m_env.getLocalPlayer();
1246 if(myplayer == NULL)
1249 // Save bandwidth by only updating position when something changed
1250 if(myplayer->last_position == myplayer->getPosition() &&
1251 myplayer->last_speed == myplayer->getSpeed() &&
1252 myplayer->last_pitch == myplayer->getPitch() &&
1253 myplayer->last_yaw == myplayer->getYaw() &&
1254 myplayer->last_keyPressed == myplayer->keyPressed)
1257 myplayer->last_position = myplayer->getPosition();
1258 myplayer->last_speed = myplayer->getSpeed();
1259 myplayer->last_pitch = myplayer->getPitch();
1260 myplayer->last_yaw = myplayer->getYaw();
1261 myplayer->last_keyPressed = myplayer->keyPressed;
1265 //JMutexAutoLock lock(m_con_mutex); //bulk comment-out
1266 our_peer_id = m_con.GetPeerID();
1269 // Set peer id if not set already
1270 if(myplayer->peer_id == PEER_ID_INEXISTENT)
1271 myplayer->peer_id = our_peer_id;
1273 assert(myplayer->peer_id == our_peer_id);
1275 v3f pf = myplayer->getPosition();
1276 v3f sf = myplayer->getSpeed();
1277 s32 pitch = myplayer->getPitch() * 100;
1278 s32 yaw = myplayer->getYaw() * 100;
1279 u32 keyPressed = myplayer->keyPressed;
1281 v3s32 position(pf.X*100, pf.Y*100, pf.Z*100);
1282 v3s32 speed(sf.X*100, sf.Y*100, sf.Z*100);
1285 [0] v3s32 position*100
1286 [12] v3s32 speed*100
1287 [12+12] s32 pitch*100
1288 [12+12+4] s32 yaw*100
1289 [12+12+4+4] u32 keyPressed
1292 NetworkPacket pkt(TOSERVER_PLAYERPOS, 12 + 12 + 4 + 4 + 4);
1294 pkt << position << speed << pitch << yaw << keyPressed;
1299 void Client::sendPlayerItem(u16 item)
1301 Player *myplayer = m_env.getLocalPlayer();
1302 if(myplayer == NULL)
1305 u16 our_peer_id = m_con.GetPeerID();
1307 // Set peer id if not set already
1308 if(myplayer->peer_id == PEER_ID_INEXISTENT)
1309 myplayer->peer_id = our_peer_id;
1310 assert(myplayer->peer_id == our_peer_id);
1312 NetworkPacket pkt(TOSERVER_PLAYERITEM, 2);
1319 void Client::removeNode(v3s16 p)
1321 std::map<v3s16, MapBlock*> modified_blocks;
1324 m_env.getMap().removeNodeAndUpdate(p, modified_blocks);
1326 catch(InvalidPositionException &e) {
1329 for(std::map<v3s16, MapBlock *>::iterator
1330 i = modified_blocks.begin();
1331 i != modified_blocks.end(); ++i) {
1332 addUpdateMeshTaskWithEdge(i->first, false, true);
1336 void Client::addNode(v3s16 p, MapNode n, bool remove_metadata)
1338 //TimeTaker timer1("Client::addNode()");
1340 std::map<v3s16, MapBlock*> modified_blocks;
1343 //TimeTaker timer3("Client::addNode(): addNodeAndUpdate");
1344 m_env.getMap().addNodeAndUpdate(p, n, modified_blocks, remove_metadata);
1346 catch(InvalidPositionException &e) {
1349 for(std::map<v3s16, MapBlock *>::iterator
1350 i = modified_blocks.begin();
1351 i != modified_blocks.end(); ++i) {
1352 addUpdateMeshTaskWithEdge(i->first, false, true);
1356 void Client::setPlayerControl(PlayerControl &control)
1358 LocalPlayer *player = m_env.getLocalPlayer();
1359 assert(player != NULL);
1360 player->control = control;
1363 void Client::selectPlayerItem(u16 item)
1365 m_playeritem = item;
1366 m_inventory_updated = true;
1367 sendPlayerItem(item);
1370 // Returns true if the inventory of the local player has been
1371 // updated from the server. If it is true, it is set to false.
1372 bool Client::getLocalInventoryUpdated()
1374 bool updated = m_inventory_updated;
1375 m_inventory_updated = false;
1379 // Copies the inventory of the local player to parameter
1380 void Client::getLocalInventory(Inventory &dst)
1382 Player *player = m_env.getLocalPlayer();
1383 assert(player != NULL);
1384 dst = player->inventory;
1387 Inventory* Client::getInventory(const InventoryLocation &loc)
1390 case InventoryLocation::UNDEFINED:
1393 case InventoryLocation::CURRENT_PLAYER:
1395 Player *player = m_env.getLocalPlayer();
1396 assert(player != NULL);
1397 return &player->inventory;
1400 case InventoryLocation::PLAYER:
1402 Player *player = m_env.getPlayer(loc.name.c_str());
1405 return &player->inventory;
1408 case InventoryLocation::NODEMETA:
1410 NodeMetadata *meta = m_env.getMap().getNodeMetadata(loc.p);
1413 return meta->getInventory();
1416 case InventoryLocation::DETACHED:
1418 if(m_detached_inventories.count(loc.name) == 0)
1420 return m_detached_inventories[loc.name];
1424 FATAL_ERROR("Invalid inventory location type.");
1430 void Client::inventoryAction(InventoryAction *a)
1433 Send it to the server
1435 sendInventoryAction(a);
1438 Predict some local inventory changes
1440 a->clientApply(this, this);
1446 ClientActiveObject * Client::getSelectedActiveObject(
1448 v3f from_pos_f_on_map,
1449 core::line3d<f32> shootline_on_map
1452 std::vector<DistanceSortedActiveObject> objects;
1454 m_env.getActiveObjects(from_pos_f_on_map, max_d, objects);
1457 // After this, the closest object is the first in the array.
1458 std::sort(objects.begin(), objects.end());
1460 for(unsigned int i=0; i<objects.size(); i++)
1462 ClientActiveObject *obj = objects[i].obj;
1464 core::aabbox3d<f32> *selection_box = obj->getSelectionBox();
1465 if(selection_box == NULL)
1468 v3f pos = obj->getPosition();
1470 core::aabbox3d<f32> offsetted_box(
1471 selection_box->MinEdge + pos,
1472 selection_box->MaxEdge + pos
1475 if(offsetted_box.intersectsWithLine(shootline_on_map))
1484 std::list<std::string> Client::getConnectedPlayerNames()
1486 return m_env.getPlayerNames();
1489 float Client::getAnimationTime()
1491 return m_animation_time;
1494 int Client::getCrackLevel()
1496 return m_crack_level;
1499 void Client::setHighlighted(v3s16 pos, bool show_highlighted)
1501 m_show_highlighted = show_highlighted;
1502 v3s16 old_highlighted_pos = m_highlighted_pos;
1503 m_highlighted_pos = pos;
1504 addUpdateMeshTaskForNode(old_highlighted_pos, false, true);
1505 addUpdateMeshTaskForNode(m_highlighted_pos, false, true);
1508 void Client::setCrack(int level, v3s16 pos)
1510 int old_crack_level = m_crack_level;
1511 v3s16 old_crack_pos = m_crack_pos;
1513 m_crack_level = level;
1516 if(old_crack_level >= 0 && (level < 0 || pos != old_crack_pos))
1519 addUpdateMeshTaskForNode(old_crack_pos, false, true);
1521 if(level >= 0 && (old_crack_level < 0 || pos != old_crack_pos))
1524 addUpdateMeshTaskForNode(pos, false, true);
1530 Player *player = m_env.getLocalPlayer();
1531 assert(player != NULL);
1535 u16 Client::getBreath()
1537 Player *player = m_env.getLocalPlayer();
1538 assert(player != NULL);
1539 return player->getBreath();
1542 bool Client::getChatMessage(std::wstring &message)
1544 if(m_chat_queue.size() == 0)
1546 message = m_chat_queue.front();
1551 void Client::typeChatMessage(const std::wstring &message)
1553 // Discard empty line
1558 sendChatMessage(message);
1561 if (message[0] == L'/')
1563 m_chat_queue.push((std::wstring)L"issued command: " + message);
1567 LocalPlayer *player = m_env.getLocalPlayer();
1568 assert(player != NULL);
1569 std::wstring name = narrow_to_wide(player->getName());
1570 m_chat_queue.push((std::wstring)L"<" + name + L"> " + message);
1574 void Client::addUpdateMeshTask(v3s16 p, bool ack_to_server, bool urgent)
1576 MapBlock *b = m_env.getMap().getBlockNoCreateNoEx(p);
1581 Create a task to update the mesh of the block
1584 MeshMakeData *data = new MeshMakeData(this, m_cache_enable_shaders);
1587 //TimeTaker timer("data fill");
1589 // Debug: 1-6ms, avg=2ms
1591 data->setCrack(m_crack_level, m_crack_pos);
1592 data->setHighlighted(m_highlighted_pos, m_show_highlighted);
1593 data->setSmoothLighting(m_cache_smooth_lighting);
1596 // Add task to queue
1597 m_mesh_update_thread.enqueueUpdate(p, data, ack_to_server, urgent);
1600 void Client::addUpdateMeshTaskWithEdge(v3s16 blockpos, bool ack_to_server, bool urgent)
1603 addUpdateMeshTask(blockpos, ack_to_server, urgent);
1605 catch(InvalidPositionException &e){}
1608 for (int i=0;i<6;i++)
1611 v3s16 p = blockpos + g_6dirs[i];
1612 addUpdateMeshTask(p, false, urgent);
1614 catch(InvalidPositionException &e){}
1618 void Client::addUpdateMeshTaskForNode(v3s16 nodepos, bool ack_to_server, bool urgent)
1622 infostream<<"Client::addUpdateMeshTaskForNode(): "
1623 <<"("<<p.X<<","<<p.Y<<","<<p.Z<<")"
1627 v3s16 blockpos = getNodeBlockPos(nodepos);
1628 v3s16 blockpos_relative = blockpos * MAP_BLOCKSIZE;
1631 addUpdateMeshTask(blockpos, ack_to_server, urgent);
1633 catch(InvalidPositionException &e) {}
1636 if(nodepos.X == blockpos_relative.X){
1638 v3s16 p = blockpos + v3s16(-1,0,0);
1639 addUpdateMeshTask(p, false, urgent);
1641 catch(InvalidPositionException &e){}
1644 if(nodepos.Y == blockpos_relative.Y){
1646 v3s16 p = blockpos + v3s16(0,-1,0);
1647 addUpdateMeshTask(p, false, urgent);
1649 catch(InvalidPositionException &e){}
1652 if(nodepos.Z == blockpos_relative.Z){
1654 v3s16 p = blockpos + v3s16(0,0,-1);
1655 addUpdateMeshTask(p, false, urgent);
1657 catch(InvalidPositionException &e){}
1661 ClientEvent Client::getClientEvent()
1664 if(m_client_event_queue.size() == 0) {
1665 event.type = CE_NONE;
1668 event = m_client_event_queue.front();
1669 m_client_event_queue.pop();
1674 float Client::mediaReceiveProgress()
1676 if (m_media_downloader)
1677 return m_media_downloader->getProgress();
1679 return 1.0; // downloader only exists when not yet done
1682 typedef struct TextureUpdateArgs {
1683 IrrlichtDevice *device;
1684 gui::IGUIEnvironment *guienv;
1687 const wchar_t* text_base;
1688 } TextureUpdateArgs;
1690 void texture_update_progress(void *args, u32 progress, u32 max_progress)
1692 TextureUpdateArgs* targs = (TextureUpdateArgs*) args;
1693 u16 cur_percent = ceil(progress / (double) max_progress * 100.);
1695 // update the loading menu -- if neccessary
1696 bool do_draw = false;
1697 u32 time_ms = targs->last_time_ms;
1698 if (cur_percent != targs->last_percent) {
1699 targs->last_percent = cur_percent;
1700 time_ms = getTimeMs();
1701 // only draw when the user will notice something:
1702 do_draw = (time_ms - targs->last_time_ms > 100);
1706 targs->last_time_ms = time_ms;
1707 std::basic_stringstream<wchar_t> strm;
1708 strm << targs->text_base << " " << targs->last_percent << "%...";
1709 draw_load_screen(strm.str(), targs->device, targs->guienv, 0,
1710 72 + (u16) ((18. / 100.) * (double) targs->last_percent));
1714 void Client::afterContentReceived(IrrlichtDevice *device)
1716 infostream<<"Client::afterContentReceived() started"<<std::endl;
1717 assert(m_itemdef_received); // pre-condition
1718 assert(m_nodedef_received); // pre-condition
1719 assert(mediaReceived()); // pre-condition
1721 const wchar_t* text = wgettext("Loading textures...");
1723 // Clear cached pre-scaled 2D GUI images, as this cache
1724 // might have images with the same name but different
1725 // content from previous sessions.
1726 guiScalingCacheClear(device->getVideoDriver());
1728 // Rebuild inherited images and recreate textures
1729 infostream<<"- Rebuilding images and textures"<<std::endl;
1730 draw_load_screen(text,device, guienv, 0, 70);
1731 m_tsrc->rebuildImagesAndTextures();
1735 infostream<<"- Rebuilding shaders"<<std::endl;
1736 text = wgettext("Rebuilding shaders...");
1737 draw_load_screen(text, device, guienv, 0, 71);
1738 m_shsrc->rebuildShaders();
1741 // Update node aliases
1742 infostream<<"- Updating node aliases"<<std::endl;
1743 text = wgettext("Initializing nodes...");
1744 draw_load_screen(text, device, guienv, 0, 72);
1745 m_nodedef->updateAliases(m_itemdef);
1746 std::string texture_path = g_settings->get("texture_path");
1747 if (texture_path != "" && fs::IsDir(texture_path))
1748 m_nodedef->applyTextureOverrides(texture_path + DIR_DELIM + "override.txt");
1749 m_nodedef->setNodeRegistrationStatus(true);
1750 m_nodedef->runNodeResolveCallbacks();
1753 // Update node textures and assign shaders to each tile
1754 infostream<<"- Updating node textures"<<std::endl;
1755 TextureUpdateArgs tu_args;
1756 tu_args.device = device;
1757 tu_args.guienv = guienv;
1758 tu_args.last_time_ms = getTimeMs();
1759 tu_args.last_percent = 0;
1760 tu_args.text_base = wgettext("Initializing nodes");
1761 m_nodedef->updateTextures(this, texture_update_progress, &tu_args);
1762 delete[] tu_args.text_base;
1764 // Preload item textures and meshes if configured to
1765 if(g_settings->getBool("preload_item_visuals"))
1767 verbosestream<<"Updating item textures and meshes"<<std::endl;
1768 text = wgettext("Item textures...");
1769 draw_load_screen(text, device, guienv, 0, 0);
1770 std::set<std::string> names = m_itemdef->getAll();
1771 size_t size = names.size();
1774 for(std::set<std::string>::const_iterator
1775 i = names.begin(); i != names.end(); ++i)
1777 // Asking for these caches the result
1778 m_itemdef->getInventoryTexture(*i, this);
1779 m_itemdef->getWieldMesh(*i, this);
1781 percent = (count * 100 / size * 0.2) + 80;
1782 draw_load_screen(text, device, guienv, 0, percent);
1787 // Start mesh update thread after setting up content definitions
1788 infostream<<"- Starting mesh update thread"<<std::endl;
1789 m_mesh_update_thread.Start();
1793 text = wgettext("Done!");
1794 draw_load_screen(text, device, guienv, 0, 100);
1795 infostream<<"Client::afterContentReceived() done"<<std::endl;
1799 float Client::getRTT(void)
1801 return m_con.getPeerStat(PEER_ID_SERVER,con::AVG_RTT);
1804 float Client::getCurRate(void)
1806 return ( m_con.getLocalStat(con::CUR_INC_RATE) +
1807 m_con.getLocalStat(con::CUR_DL_RATE));
1810 float Client::getAvgRate(void)
1812 return ( m_con.getLocalStat(con::AVG_INC_RATE) +
1813 m_con.getLocalStat(con::AVG_DL_RATE));
1816 void Client::makeScreenshot(IrrlichtDevice *device)
1818 irr::video::IVideoDriver *driver = device->getVideoDriver();
1819 irr::video::IImage* const raw_image = driver->createScreenShot();
1824 time_t t = time(NULL);
1825 struct tm *tm = localtime(&t);
1827 char timetstamp_c[64];
1828 strftime(timetstamp_c, sizeof(timetstamp_c), "%Y%m%d_%H%M%S", tm);
1830 std::string filename_base = g_settings->get("screenshot_path")
1832 + std::string("screenshot_")
1833 + std::string(timetstamp_c);
1834 std::string filename_ext = ".png";
1835 std::string filename;
1837 // Try to find a unique filename
1838 unsigned serial = 0;
1840 while (serial < SCREENSHOT_MAX_SERIAL_TRIES) {
1841 filename = filename_base + (serial > 0 ? ("_" + itos(serial)) : "") + filename_ext;
1842 std::ifstream tmp(filename.c_str());
1844 break; // File did not apparently exist, we'll go with it
1848 if (serial == SCREENSHOT_MAX_SERIAL_TRIES) {
1849 infostream << "Could not find suitable filename for screenshot" << std::endl;
1851 irr::video::IImage* const image =
1852 driver->createImage(video::ECF_R8G8B8, raw_image->getDimension());
1855 raw_image->copyTo(image);
1857 std::ostringstream sstr;
1858 if (driver->writeImageToFile(image, filename.c_str())) {
1859 sstr << "Saved screenshot to '" << filename << "'";
1861 sstr << "Failed to save screenshot '" << filename << "'";
1863 m_chat_queue.push(narrow_to_wide(sstr.str()));
1864 infostream << sstr.str() << std::endl;
1872 // IGameDef interface
1874 IItemDefManager* Client::getItemDefManager()
1878 INodeDefManager* Client::getNodeDefManager()
1882 ICraftDefManager* Client::getCraftDefManager()
1885 //return m_craftdef;
1887 ITextureSource* Client::getTextureSource()
1891 IShaderSource* Client::getShaderSource()
1895 scene::ISceneManager* Client::getSceneManager()
1897 return m_device->getSceneManager();
1899 u16 Client::allocateUnknownNodeId(const std::string &name)
1901 errorstream << "Client::allocateUnknownNodeId(): "
1902 << "Client cannot allocate node IDs" << std::endl;
1903 FATAL_ERROR("Client allocated unknown node");
1905 return CONTENT_IGNORE;
1907 ISoundManager* Client::getSoundManager()
1911 MtEventManager* Client::getEventManager()
1916 ParticleManager* Client::getParticleManager()
1918 return &m_particle_manager;
1921 scene::IAnimatedMesh* Client::getMesh(const std::string &filename)
1923 StringMap::const_iterator it = m_mesh_data.find(filename);
1924 if (it == m_mesh_data.end()) {
1925 errorstream << "Client::getMesh(): Mesh not found: \"" << filename
1926 << "\"" << std::endl;
1929 const std::string &data = it->second;
1930 scene::ISceneManager *smgr = m_device->getSceneManager();
1932 // Create the mesh, remove it from cache and return it
1933 // This allows unique vertex colors and other properties for each instance
1934 Buffer<char> data_rw(data.c_str(), data.size()); // Const-incorrect Irrlicht
1935 io::IFileSystem *irrfs = m_device->getFileSystem();
1936 io::IReadFile *rfile = irrfs->createMemoryReadFile(
1937 *data_rw, data_rw.getSize(), filename.c_str());
1938 FATAL_ERROR_IF(!rfile, "Could not create/open RAM file");
1940 scene::IAnimatedMesh *mesh = smgr->getMesh(rfile);
1942 // NOTE: By playing with Irrlicht refcounts, maybe we could cache a bunch
1943 // of uniquely named instances and re-use them
1945 smgr->getMeshCache()->removeMesh(mesh);