src/client.cpp

   1 /*
   2 Minetest
   3 Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
   4
   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.
   9
  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.
  14
  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.
  18 */
  19
  20 #include <iostream>
  21 #include <algorithm>
  22 #include <sstream>
  23 #include <cmath>
  24 #include <IFileSystem.h>
  25 #include "threading/mutex_auto_lock.h"
  26 #include "util/auth.h"
  27 #include "util/directiontables.h"
  28 #include "util/pointedthing.h"
  29 #include "util/serialize.h"
  30 #include "util/string.h"
  31 #include "util/srp.h"
  32 #include "client.h"
  33 #include "network/clientopcodes.h"
  34 #include "filesys.h"
  35 #include "mapblock_mesh.h"
  36 #include "mapblock.h"
  37 #include "minimap.h"
  38 #include "mods.h"
  39 #include "profiler.h"
  40 #include "gettext.h"
  41 #include "clientmap.h"
  42 #include "clientmedia.h"
  43 #include "version.h"
  44 #include "drawscene.h"
  45 #include "database-sqlite3.h"
  46 #include "serialization.h"
  47 #include "guiscalingfilter.h"
  48 #include "script/clientscripting.h"
  49 #include "game.h"
  50
  51 extern gui::IGUIEnvironment* guienv;
  52
  53 /*
  54         QueuedMeshUpdate
  55 */
  56
  57 QueuedMeshUpdate::QueuedMeshUpdate():
  58         p(-1337,-1337,-1337),
  59         data(NULL),
  60         ack_block_to_server(false)
  61 {
  62 }
  63
  64 QueuedMeshUpdate::~QueuedMeshUpdate()
  65 {
  66         if(data)
  67                 delete data;
  68 }
  69
  70 /*
  71         MeshUpdateQueue
  72 */
  73
  74 MeshUpdateQueue::MeshUpdateQueue()
  75 {
  76 }
  77
  78 MeshUpdateQueue::~MeshUpdateQueue()
  79 {
  80         MutexAutoLock lock(m_mutex);
  81
  82         for(std::vector<QueuedMeshUpdate*>::iterator
  83                         i = m_queue.begin();
  84                         i != m_queue.end(); ++i)
  85         {
  86                 QueuedMeshUpdate *q = *i;
  87                 delete q;
  88         }
  89 }
  90
  91 /*
  92         peer_id=0 adds with nobody to send to
  93 */
  94 void MeshUpdateQueue::addBlock(v3s16 p, MeshMakeData *data, bool ack_block_to_server, bool urgent)
  95 {
  96         DSTACK(FUNCTION_NAME);
  97
  98         assert(data);   // pre-condition
  99
 100         MutexAutoLock lock(m_mutex);
 101
 102         if(urgent)
 103                 m_urgents.insert(p);
 104
 105         /*
 106                 Find if block is already in queue.
 107                 If it is, update the data and quit.
 108         */
 109         for(std::vector<QueuedMeshUpdate*>::iterator
 110                         i = m_queue.begin();
 111                         i != m_queue.end(); ++i)
 112         {
 113                 QueuedMeshUpdate *q = *i;
 114                 if(q->p == p)
 115                 {
 116                         if(q->data)
 117                                 delete q->data;
 118                         q->data = data;
 119                         if(ack_block_to_server)
 120                                 q->ack_block_to_server = true;
 121                         return;
 122                 }
 123         }
 124
 125         /*
 126                 Add the block
 127         */
 128         QueuedMeshUpdate *q = new QueuedMeshUpdate;
 129         q->p = p;
 130         q->data = data;
 131         q->ack_block_to_server = ack_block_to_server;
 132         m_queue.push_back(q);
 133 }
 134
 135 // Returned pointer must be deleted
 136 // Returns NULL if queue is empty
 137 QueuedMeshUpdate *MeshUpdateQueue::pop()
 138 {
 139         MutexAutoLock lock(m_mutex);
 140
 141         bool must_be_urgent = !m_urgents.empty();
 142         for(std::vector<QueuedMeshUpdate*>::iterator
 143                         i = m_queue.begin();
 144                         i != m_queue.end(); ++i)
 145         {
 146                 QueuedMeshUpdate *q = *i;
 147                 if(must_be_urgent && m_urgents.count(q->p) == 0)
 148                         continue;
 149                 m_queue.erase(i);
 150                 m_urgents.erase(q->p);
 151                 return q;
 152         }
 153         return NULL;
 154 }
 155
 156 /*
 157         MeshUpdateThread
 158 */
 159
 160 void MeshUpdateThread::enqueueUpdate(v3s16 p, MeshMakeData *data,
 161                 bool ack_block_to_server, bool urgent)
 162 {
 163         m_queue_in.addBlock(p, data, ack_block_to_server, urgent);
 164         deferUpdate();
 165 }
 166
 167 void MeshUpdateThread::doUpdate()
 168 {
 169         QueuedMeshUpdate *q;
 170         while ((q = m_queue_in.pop())) {
 171
 172                 ScopeProfiler sp(g_profiler, "Client: Mesh making");
 173
 174                 MapBlockMesh *mesh_new = new MapBlockMesh(q->data, m_camera_offset);
 175
 176                 MeshUpdateResult r;
 177                 r.p = q->p;
 178                 r.mesh = mesh_new;
 179                 r.ack_block_to_server = q->ack_block_to_server;
 180
 181                 m_queue_out.push_back(r);
 182
 183                 delete q;
 184         }
 185 }
 186
 187 /*
 188         Client
 189 */
 190
 191 Client::Client(
 192                 IrrlichtDevice *device,
 193                 const char *playername,
 194                 std::string password,
 195                 MapDrawControl &control,
 196                 IWritableTextureSource *tsrc,
 197                 IWritableShaderSource *shsrc,
 198                 IWritableItemDefManager *itemdef,
 199                 IWritableNodeDefManager *nodedef,
 200                 ISoundManager *sound,
 201                 MtEventManager *event,
 202                 bool ipv6,
 203                 GameUIFlags *game_ui_flags
 204 ):
 205         m_packetcounter_timer(0.0),
 206         m_connection_reinit_timer(0.1),
 207         m_avg_rtt_timer(0.0),
 208         m_playerpos_send_timer(0.0),
 209         m_ignore_damage_timer(0.0),
 210         m_tsrc(tsrc),
 211         m_shsrc(shsrc),
 212         m_itemdef(itemdef),
 213         m_nodedef(nodedef),
 214         m_sound(sound),
 215         m_event(event),
 216         m_mesh_update_thread(),
 217         m_env(
 218                 new ClientMap(this, control,
 219                         device->getSceneManager()->getRootSceneNode(),
 220                         device->getSceneManager(), 666),
 221                 device->getSceneManager(),
 222                 tsrc, this, device
 223         ),
 224         m_particle_manager(&m_env),
 225         m_con(PROTOCOL_ID, 512, CONNECTION_TIMEOUT, ipv6, this),
 226         m_device(device),
 227         m_camera(NULL),
 228         m_minimap_disabled_by_server(false),
 229         m_server_ser_ver(SER_FMT_VER_INVALID),
 230         m_proto_ver(0),
 231         m_playeritem(0),
 232         m_inventory_updated(false),
 233         m_inventory_from_server(NULL),
 234         m_inventory_from_server_age(0.0),
 235         m_animation_time(0),
 236         m_crack_level(-1),
 237         m_crack_pos(0,0,0),
 238         m_map_seed(0),
 239         m_password(password),
 240         m_chosen_auth_mech(AUTH_MECHANISM_NONE),
 241         m_auth_data(NULL),
 242         m_access_denied(false),
 243         m_access_denied_reconnect(false),
 244         m_itemdef_received(false),
 245         m_nodedef_received(false),
 246         m_media_downloader(new ClientMediaDownloader()),
 247         m_time_of_day_set(false),
 248         m_last_time_of_day_f(-1),
 249         m_time_of_day_update_timer(0),
 250         m_recommended_send_interval(0.1),
 251         m_removed_sounds_check_timer(0),
 252         m_state(LC_Created),
 253         m_localdb(NULL),
 254         m_script(NULL),
 255         m_mod_storage_save_timer(10.0f),
 256         m_game_ui_flags(game_ui_flags)
 257 {
 258         // Add local player
 259         m_env.setLocalPlayer(new LocalPlayer(this, playername));
 260
 261         m_minimap = new Minimap(device, this);
 262         m_cache_save_interval = g_settings->getU16("server_map_save_interval");
 263
 264         m_cache_smooth_lighting = g_settings->getBool("smooth_lighting");
 265         m_cache_enable_shaders  = g_settings->getBool("enable_shaders");
 266         m_cache_use_tangent_vertices = m_cache_enable_shaders && (
 267                 g_settings->getBool("enable_bumpmapping") ||
 268                 g_settings->getBool("enable_parallax_occlusion"));
 269
 270         m_modding_enabled = g_settings->getBool("enable_client_modding");
 271         m_script = new ClientScripting(this);
 272         m_env.setScript(m_script);
 273         m_script->setEnv(&m_env);
 274 }
 275
 276 void Client::initMods()
 277 {
 278         m_script->loadMod(getBuiltinLuaPath() + DIR_DELIM "init.lua", BUILTIN_MOD_NAME);
 279
 280         // If modding is not enabled, don't load mods, just builtin
 281         if (!m_modding_enabled) {
 282                 return;
 283         }
 284
 285         ClientModConfiguration modconf(getClientModsLuaPath());
 286         std::vector<ModSpec> mods = modconf.getMods();
 287         std::vector<ModSpec> unsatisfied_mods = modconf.getUnsatisfiedMods();
 288         // complain about mods with unsatisfied dependencies
 289         if (!modconf.isConsistent()) {
 290                 modconf.printUnsatisfiedModsError();
 291         }
 292
 293         // Print mods
 294         infostream << "Client Loading mods: ";
 295         for (std::vector<ModSpec>::const_iterator i = mods.begin();
 296                 i != mods.end(); ++i) {
 297                 infostream << (*i).name << " ";
 298         }
 299
 300         infostream << std::endl;
 301         // Load and run "mod" scripts
 302         for (std::vector<ModSpec>::const_iterator it = mods.begin();
 303                 it != mods.end(); ++it) {
 304                 const ModSpec &mod = *it;
 305                 if (!string_allowed(mod.name, MODNAME_ALLOWED_CHARS)) {
 306                         throw ModError("Error loading mod \"" + mod.name +
 307                                 "\": Mod name does not follow naming conventions: "
 308                                         "Only chararacters [a-z0-9_] are allowed.");
 309                 }
 310                 std::string script_path = mod.path + DIR_DELIM + "init.lua";
 311                 infostream << "  [" << padStringRight(mod.name, 12) << "] [\""
 312                         << script_path << "\"]" << std::endl;
 313                 m_script->loadMod(script_path, mod.name);
 314         }
 315 }
 316
 317 const std::string &Client::getBuiltinLuaPath()
 318 {
 319         static const std::string builtin_dir = porting::path_share + DIR_DELIM + "builtin";
 320         return builtin_dir;
 321 }
 322
 323 const std::string &Client::getClientModsLuaPath()
 324 {
 325         static const std::string clientmods_dir = porting::path_share + DIR_DELIM + "clientmods";
 326         return clientmods_dir;
 327 }
 328
 329 const std::vector<ModSpec>& Client::getMods() const
 330 {
 331         static std::vector<ModSpec> client_modspec_temp;
 332         return client_modspec_temp;
 333 }
 334
 335 const ModSpec* Client::getModSpec(const std::string &modname) const
 336 {
 337         return NULL;
 338 }
 339
 340 void Client::Stop()
 341 {
 342         // Don't disable this part when modding is disabled, it's used in builtin
 343         m_script->on_shutdown();
 344         //request all client managed threads to stop
 345         m_mesh_update_thread.stop();
 346         // Save local server map
 347         if (m_localdb) {
 348                 infostream << "Local map saving ended." << std::endl;
 349                 m_localdb->endSave();
 350         }
 351
 352         delete m_script;
 353 }
 354
 355 bool Client::isShutdown()
 356 {
 357
 358         if (!m_mesh_update_thread.isRunning()) return true;
 359
 360         return false;
 361 }
 362
 363 Client::~Client()
 364 {
 365         m_con.Disconnect();
 366
 367         m_mesh_update_thread.stop();
 368         m_mesh_update_thread.wait();
 369         while (!m_mesh_update_thread.m_queue_out.empty()) {
 370                 MeshUpdateResult r = m_mesh_update_thread.m_queue_out.pop_frontNoEx();
 371                 delete r.mesh;
 372         }
 373
 374
 375         delete m_inventory_from_server;
 376
 377         // Delete detached inventories
 378         for (UNORDERED_MAP<std::string, Inventory*>::iterator
 379                         i = m_detached_inventories.begin();
 380                         i != m_detached_inventories.end(); ++i) {
 381                 delete i->second;
 382         }
 383
 384         // cleanup 3d model meshes on client shutdown
 385         while (m_device->getSceneManager()->getMeshCache()->getMeshCount() != 0) {
 386                 scene::IAnimatedMesh *mesh =
 387                         m_device->getSceneManager()->getMeshCache()->getMeshByIndex(0);
 388
 389                 if (mesh != NULL)
 390                         m_device->getSceneManager()->getMeshCache()->removeMesh(mesh);
 391         }
 392
 393         delete m_minimap;
 394 }
 395
 396 void Client::connect(Address address,
 397                 const std::string &address_name,
 398                 bool is_local_server)
 399 {
 400         DSTACK(FUNCTION_NAME);
 401
 402         initLocalMapSaving(address, address_name, is_local_server);
 403
 404         m_con.SetTimeoutMs(0);
 405         m_con.Connect(address);
 406 }
 407
 408 void Client::step(float dtime)
 409 {
 410         DSTACK(FUNCTION_NAME);
 411
 412         // Limit a bit
 413         if(dtime > 2.0)
 414                 dtime = 2.0;
 415
 416         if(m_ignore_damage_timer > dtime)
 417                 m_ignore_damage_timer -= dtime;
 418         else
 419                 m_ignore_damage_timer = 0.0;
 420
 421         m_animation_time += dtime;
 422         if(m_animation_time > 60.0)
 423                 m_animation_time -= 60.0;
 424
 425         m_time_of_day_update_timer += dtime;
 426
 427         ReceiveAll();
 428
 429         /*
 430                 Packet counter
 431         */
 432         {
 433                 float &counter = m_packetcounter_timer;
 434                 counter -= dtime;
 435                 if(counter <= 0.0)
 436                 {
 437                         counter = 20.0;
 438
 439                         infostream << "Client packetcounter (" << m_packetcounter_timer
 440                                         << "):"<<std::endl;
 441                         m_packetcounter.print(infostream);
 442                         m_packetcounter.clear();
 443                 }
 444         }
 445
 446         // UGLY hack to fix 2 second startup delay caused by non existent
 447         // server client startup synchronization in local server or singleplayer mode
 448         static bool initial_step = true;
 449         if (initial_step) {
 450                 initial_step = false;
 451         }
 452         else if(m_state == LC_Created) {
 453                 float &counter = m_connection_reinit_timer;
 454                 counter -= dtime;
 455                 if(counter <= 0.0) {
 456                         counter = 2.0;
 457
 458                         LocalPlayer *myplayer = m_env.getLocalPlayer();
 459                         FATAL_ERROR_IF(myplayer == NULL, "Local player not found in environment.");
 460
 461                         u16 proto_version_min = g_settings->getFlag("send_pre_v25_init") ?
 462                                 CLIENT_PROTOCOL_VERSION_MIN_LEGACY : CLIENT_PROTOCOL_VERSION_MIN;
 463
 464                         if (proto_version_min < 25) {
 465                                 // Send TOSERVER_INIT_LEGACY
 466                                 // [0] u16 TOSERVER_INIT_LEGACY
 467                                 // [2] u8 SER_FMT_VER_HIGHEST_READ
 468                                 // [3] u8[20] player_name
 469                                 // [23] u8[28] password (new in some version)
 470                                 // [51] u16 minimum supported network protocol version (added sometime)
 471                                 // [53] u16 maximum supported network protocol version (added later than the previous one)
 472
 473                                 char pName[PLAYERNAME_SIZE];
 474                                 char pPassword[PASSWORD_SIZE];
 475                                 memset(pName, 0, PLAYERNAME_SIZE * sizeof(char));
 476                                 memset(pPassword, 0, PASSWORD_SIZE * sizeof(char));
 477
 478                                 std::string hashed_password = translate_password(myplayer->getName(), m_password);
 479                                 snprintf(pName, PLAYERNAME_SIZE, "%s", myplayer->getName());
 480                                 snprintf(pPassword, PASSWORD_SIZE, "%s", hashed_password.c_str());
 481
 482                                 sendLegacyInit(pName, pPassword);
 483                         }
 484                         if (CLIENT_PROTOCOL_VERSION_MAX >= 25)
 485                                 sendInit(myplayer->getName());
 486                 }
 487
 488                 // Not connected, return
 489                 return;
 490         }
 491
 492         /*
 493                 Do stuff if connected
 494         */
 495
 496         /*
 497                 Run Map's timers and unload unused data
 498         */
 499         const float map_timer_and_unload_dtime = 5.25;
 500         if(m_map_timer_and_unload_interval.step(dtime, map_timer_and_unload_dtime)) {
 501                 ScopeProfiler sp(g_profiler, "Client: map timer and unload");
 502                 std::vector<v3s16> deleted_blocks;
 503                 m_env.getMap().timerUpdate(map_timer_and_unload_dtime,
 504                         g_settings->getFloat("client_unload_unused_data_timeout"),
 505                         g_settings->getS32("client_mapblock_limit"),
 506                         &deleted_blocks);
 507
 508                 /*
 509                         Send info to server
 510                         NOTE: This loop is intentionally iterated the way it is.
 511                 */
 512
 513                 std::vector<v3s16>::iterator i = deleted_blocks.begin();
 514                 std::vector<v3s16> sendlist;
 515                 for(;;) {
 516                         if(sendlist.size() == 255 || i == deleted_blocks.end()) {
 517                                 if(sendlist.empty())
 518                                         break;
 519                                 /*
 520                                         [0] u16 command
 521                                         [2] u8 count
 522                                         [3] v3s16 pos_0
 523                                         [3+6] v3s16 pos_1
 524                                         ...
 525                                 */
 526
 527                                 sendDeletedBlocks(sendlist);
 528
 529                                 if(i == deleted_blocks.end())
 530                                         break;
 531
 532                                 sendlist.clear();
 533                         }
 534
 535                         sendlist.push_back(*i);
 536                         ++i;
 537                 }
 538         }
 539
 540         /*
 541                 Handle environment
 542         */
 543         // Control local player (0ms)
 544         LocalPlayer *player = m_env.getLocalPlayer();
 545         assert(player != NULL);
 546         player->applyControl(dtime);
 547
 548         // Step environment
 549         m_env.step(dtime);
 550
 551         /*
 552                 Get events
 553         */
 554         for(;;) {
 555                 ClientEnvEvent event = m_env.getClientEvent();
 556                 if(event.type == CEE_NONE) {
 557                         break;
 558                 }
 559                 else if(event.type == CEE_PLAYER_DAMAGE) {
 560                         if(m_ignore_damage_timer <= 0) {
 561                                 u8 damage = event.player_damage.amount;
 562
 563                                 if(event.player_damage.send_to_server)
 564                                         sendDamage(damage);
 565
 566                                 // Add to ClientEvent queue
 567                                 ClientEvent event;
 568                                 event.type = CE_PLAYER_DAMAGE;
 569                                 event.player_damage.amount = damage;
 570                                 m_client_event_queue.push(event);
 571                         }
 572                 }
 573                 // Protocol v29 or greater obsoleted this event
 574                 else if (event.type == CEE_PLAYER_BREATH && m_proto_ver < 29) {
 575                         u16 breath = event.player_breath.amount;
 576                         sendBreath(breath);
 577                 }
 578         }
 579
 580         /*
 581                 Print some info
 582         */
 583         float &counter = m_avg_rtt_timer;
 584         counter += dtime;
 585         if(counter >= 10) {
 586                 counter = 0.0;
 587                 // connectedAndInitialized() is true, peer exists.
 588                 float avg_rtt = getRTT();
 589                 infostream << "Client: avg_rtt=" << avg_rtt << std::endl;
 590         }
 591
 592         /*
 593                 Send player position to server
 594         */
 595         {
 596                 float &counter = m_playerpos_send_timer;
 597                 counter += dtime;
 598                 if((m_state == LC_Ready) && (counter >= m_recommended_send_interval))
 599                 {
 600                         counter = 0.0;
 601                         sendPlayerPos();
 602                 }
 603         }
 604
 605         /*
 606                 Replace updated meshes
 607         */
 608         {
 609                 int num_processed_meshes = 0;
 610                 while (!m_mesh_update_thread.m_queue_out.empty())
 611                 {
 612                         num_processed_meshes++;
 613
 614                         MinimapMapblock *minimap_mapblock = NULL;
 615                         bool do_mapper_update = true;
 616
 617                         MeshUpdateResult r = m_mesh_update_thread.m_queue_out.pop_frontNoEx();
 618                         MapBlock *block = m_env.getMap().getBlockNoCreateNoEx(r.p);
 619                         if (block) {
 620                                 // Delete the old mesh
 621                                 if (block->mesh != NULL) {
 622                                         delete block->mesh;
 623                                         block->mesh = NULL;
 624                                 }
 625
 626                                 if (r.mesh) {
 627                                         minimap_mapblock = r.mesh->moveMinimapMapblock();
 628                                         if (minimap_mapblock == NULL)
 629                                                 do_mapper_update = false;
 630                                 }
 631
 632                                 if (r.mesh && r.mesh->getMesh()->getMeshBufferCount() == 0) {
 633                                         delete r.mesh;
 634                                 } else {
 635                                         // Replace with the new mesh
 636                                         block->mesh = r.mesh;
 637                                 }
 638                         } else {
 639                                 delete r.mesh;
 640                         }
 641
 642                         if (do_mapper_update)
 643                                 m_minimap->addBlock(r.p, minimap_mapblock);
 644
 645                         if (r.ack_block_to_server) {
 646                                 /*
 647                                         Acknowledge block
 648                                         [0] u8 count
 649                                         [1] v3s16 pos_0
 650                                 */
 651                                 sendGotBlocks(r.p);
 652                         }
 653                 }
 654
 655                 if (num_processed_meshes > 0)
 656                         g_profiler->graphAdd("num_processed_meshes", num_processed_meshes);
 657         }
 658
 659         /*
 660                 Load fetched media
 661         */
 662         if (m_media_downloader && m_media_downloader->isStarted()) {
 663                 m_media_downloader->step(this);
 664                 if (m_media_downloader->isDone()) {
 665                         received_media();
 666                         delete m_media_downloader;
 667                         m_media_downloader = NULL;
 668                 }
 669         }
 670
 671         /*
 672                 If the server didn't update the inventory in a while, revert
 673                 the local inventory (so the player notices the lag problem
 674                 and knows something is wrong).
 675         */
 676         if(m_inventory_from_server)
 677         {
 678                 float interval = 10.0;
 679                 float count_before = floor(m_inventory_from_server_age / interval);
 680
 681                 m_inventory_from_server_age += dtime;
 682
 683                 float count_after = floor(m_inventory_from_server_age / interval);
 684
 685                 if(count_after != count_before)
 686                 {
 687                         // Do this every <interval> seconds after TOCLIENT_INVENTORY
 688                         // Reset the locally changed inventory to the authoritative inventory
 689                         LocalPlayer *player = m_env.getLocalPlayer();
 690                         player->inventory = *m_inventory_from_server;
 691                         m_inventory_updated = true;
 692                 }
 693         }
 694
 695         /*
 696                 Update positions of sounds attached to objects
 697         */
 698         {
 699                 for(UNORDERED_MAP<int, u16>::iterator i = m_sounds_to_objects.begin();
 700                                 i != m_sounds_to_objects.end(); ++i) {
 701                         int client_id = i->first;
 702                         u16 object_id = i->second;
 703                         ClientActiveObject *cao = m_env.getActiveObject(object_id);
 704                         if(!cao)
 705                                 continue;
 706                         v3f pos = cao->getPosition();
 707                         m_sound->updateSoundPosition(client_id, pos);
 708                 }
 709         }
 710
 711         /*
 712                 Handle removed remotely initiated sounds
 713         */
 714         m_removed_sounds_check_timer += dtime;
 715         if(m_removed_sounds_check_timer >= 2.32) {
 716                 m_removed_sounds_check_timer = 0;
 717                 // Find removed sounds and clear references to them
 718                 std::vector<s32> removed_server_ids;
 719                 for(UNORDERED_MAP<s32, int>::iterator i = m_sounds_server_to_client.begin();
 720                                 i != m_sounds_server_to_client.end();) {
 721                         s32 server_id = i->first;
 722                         int client_id = i->second;
 723                         ++i;
 724                         if(!m_sound->soundExists(client_id)) {
 725                                 m_sounds_server_to_client.erase(server_id);
 726                                 m_sounds_client_to_server.erase(client_id);
 727                                 m_sounds_to_objects.erase(client_id);
 728                                 removed_server_ids.push_back(server_id);
 729                         }
 730                 }
 731
 732                 // Sync to server
 733                 if(!removed_server_ids.empty()) {
 734                         sendRemovedSounds(removed_server_ids);
 735                 }
 736         }
 737
 738         m_mod_storage_save_timer -= dtime;
 739         if (m_mod_storage_save_timer <= 0.0f) {
 740                 verbosestream << "Saving registered mod storages." << std::endl;
 741                 m_mod_storage_save_timer = g_settings->getFloat("server_map_save_interval");
 742                 for (UNORDERED_MAP<std::string, ModMetadata *>::const_iterator
 743                                 it = m_mod_storages.begin(); it != m_mod_storages.end(); ++it) {
 744                         if (it->second->isModified()) {
 745                                 it->second->save(getModStoragePath());
 746                         }
 747                 }
 748         }
 749
 750         // Write server map
 751         if (m_localdb && m_localdb_save_interval.step(dtime,
 752                         m_cache_save_interval)) {
 753                 m_localdb->endSave();
 754                 m_localdb->beginSave();
 755         }
 756 }
 757
 758 bool Client::loadMedia(const std::string &data, const std::string &filename)
 759 {
 760         // Silly irrlicht's const-incorrectness
 761         Buffer<char> data_rw(data.c_str(), data.size());
 762
 763         std::string name;
 764
 765         const char *image_ext[] = {
 766                 ".png", ".jpg", ".bmp", ".tga",
 767                 ".pcx", ".ppm", ".psd", ".wal", ".rgb",
 768                 NULL
 769         };
 770         name = removeStringEnd(filename, image_ext);
 771         if(name != "")
 772         {
 773                 verbosestream<<"Client: Attempting to load image "
 774                 <<"file \""<<filename<<"\""<<std::endl;
 775
 776                 io::IFileSystem *irrfs = m_device->getFileSystem();
 777                 video::IVideoDriver *vdrv = m_device->getVideoDriver();
 778
 779                 // Create an irrlicht memory file
 780                 io::IReadFile *rfile = irrfs->createMemoryReadFile(
 781                                 *data_rw, data_rw.getSize(), "_tempreadfile");
 782
 783                 FATAL_ERROR_IF(!rfile, "Could not create irrlicht memory file.");
 784
 785                 // Read image
 786                 video::IImage *img = vdrv->createImageFromFile(rfile);
 787                 if(!img){
 788                         errorstream<<"Client: Cannot create image from data of "
 789                                         <<"file \""<<filename<<"\""<<std::endl;
 790                         rfile->drop();
 791                         return false;
 792                 }
 793                 else {
 794                         m_tsrc->insertSourceImage(filename, img);
 795                         img->drop();
 796                         rfile->drop();
 797                         return true;
 798                 }
 799         }
 800
 801         const char *sound_ext[] = {
 802                 ".0.ogg", ".1.ogg", ".2.ogg", ".3.ogg", ".4.ogg",
 803                 ".5.ogg", ".6.ogg", ".7.ogg", ".8.ogg", ".9.ogg",
 804                 ".ogg", NULL
 805         };
 806         name = removeStringEnd(filename, sound_ext);
 807         if(name != "")
 808         {
 809                 verbosestream<<"Client: Attempting to load sound "
 810                 <<"file \""<<filename<<"\""<<std::endl;
 811                 m_sound->loadSoundData(name, data);
 812                 return true;
 813         }
 814
 815         const char *model_ext[] = {
 816                 ".x", ".b3d", ".md2", ".obj",
 817                 NULL
 818         };
 819         name = removeStringEnd(filename, model_ext);
 820         if(name != "")
 821         {
 822                 verbosestream<<"Client: Storing model into memory: "
 823                                 <<"\""<<filename<<"\""<<std::endl;
 824                 if(m_mesh_data.count(filename))
 825                         errorstream<<"Multiple models with name \""<<filename.c_str()
 826                                         <<"\" found; replacing previous model"<<std::endl;
 827                 m_mesh_data[filename] = data;
 828                 return true;
 829         }
 830
 831         errorstream<<"Client: Don't know how to load file \""
 832                         <<filename<<"\""<<std::endl;
 833         return false;
 834 }
 835
 836 // Virtual methods from con::PeerHandler
 837 void Client::peerAdded(con::Peer *peer)
 838 {
 839         infostream << "Client::peerAdded(): peer->id="
 840                         << peer->id << std::endl;
 841 }
 842 void Client::deletingPeer(con::Peer *peer, bool timeout)
 843 {
 844         infostream << "Client::deletingPeer(): "
 845                         "Server Peer is getting deleted "
 846                         << "(timeout=" << timeout << ")" << std::endl;
 847
 848         if (timeout) {
 849                 m_access_denied = true;
 850                 m_access_denied_reason = gettext("Connection timed out.");
 851         }
 852 }
 853
 854 /*
 855         u16 command
 856         u16 number of files requested
 857         for each file {
 858                 u16 length of name
 859                 string name
 860         }
 861 */
 862 void Client::request_media(const std::vector<std::string> &file_requests)
 863 {
 864         std::ostringstream os(std::ios_base::binary);
 865         writeU16(os, TOSERVER_REQUEST_MEDIA);
 866         size_t file_requests_size = file_requests.size();
 867
 868         FATAL_ERROR_IF(file_requests_size > 0xFFFF, "Unsupported number of file requests");
 869
 870         // Packet dynamicly resized
 871         NetworkPacket pkt(TOSERVER_REQUEST_MEDIA, 2 + 0);
 872
 873         pkt << (u16) (file_requests_size & 0xFFFF);
 874
 875         for(std::vector<std::string>::const_iterator i = file_requests.begin();
 876                         i != file_requests.end(); ++i) {
 877                 pkt << (*i);
 878         }
 879
 880         Send(&pkt);
 881
 882         infostream << "Client: Sending media request list to server ("
 883                         << file_requests.size() << " files. packet size)" << std::endl;
 884 }
 885
 886 void Client::received_media()
 887 {
 888         NetworkPacket pkt(TOSERVER_RECEIVED_MEDIA, 0);
 889         Send(&pkt);
 890         infostream << "Client: Notifying server that we received all media"
 891                         << std::endl;
 892 }
 893
 894 void Client::initLocalMapSaving(const Address &address,
 895                 const std::string &hostname,
 896                 bool is_local_server)
 897 {
 898         if (!g_settings->getBool("enable_local_map_saving") || is_local_server) {
 899                 return;
 900         }
 901
 902         const std::string world_path = porting::path_user
 903                 + DIR_DELIM + "worlds"
 904                 + DIR_DELIM + "server_"
 905                 + hostname + "_" + std::to_string(address.getPort());
 906
 907         fs::CreateAllDirs(world_path);
 908
 909         m_localdb = new Database_SQLite3(world_path);
 910         m_localdb->beginSave();
 911         actionstream << "Local map saving started, map will be saved at '" << world_path << "'" << std::endl;
 912 }
 913
 914 void Client::ReceiveAll()
 915 {
 916         DSTACK(FUNCTION_NAME);
 917         u32 start_ms = porting::getTimeMs();
 918         for(;;)
 919         {
 920                 // Limit time even if there would be huge amounts of data to
 921                 // process
 922                 if(porting::getTimeMs() > start_ms + 100)
 923                         break;
 924
 925                 try {
 926                         Receive();
 927                         g_profiler->graphAdd("client_received_packets", 1);
 928                 }
 929                 catch(con::NoIncomingDataException &e) {
 930                         break;
 931                 }
 932                 catch(con::InvalidIncomingDataException &e) {
 933                         infostream<<"Client::ReceiveAll(): "
 934                                         "InvalidIncomingDataException: what()="
 935                                         <<e.what()<<std::endl;
 936                 }
 937         }
 938 }
 939
 940 void Client::Receive()
 941 {
 942         DSTACK(FUNCTION_NAME);
 943         NetworkPacket pkt;
 944         m_con.Receive(&pkt);
 945         ProcessData(&pkt);
 946 }
 947
 948 inline void Client::handleCommand(NetworkPacket* pkt)
 949 {
 950         const ToClientCommandHandler& opHandle = toClientCommandTable[pkt->getCommand()];
 951         (this->*opHandle.handler)(pkt);
 952 }
 953
 954 /*
 955         sender_peer_id given to this shall be quaranteed to be a valid peer
 956 */
 957 void Client::ProcessData(NetworkPacket *pkt)
 958 {
 959         DSTACK(FUNCTION_NAME);
 960
 961         ToClientCommand command = (ToClientCommand) pkt->getCommand();
 962         u32 sender_peer_id = pkt->getPeerId();
 963
 964         //infostream<<"Client: received command="<<command<<std::endl;
 965         m_packetcounter.add((u16)command);
 966
 967         /*
 968                 If this check is removed, be sure to change the queue
 969                 system to know the ids
 970         */
 971         if(sender_peer_id != PEER_ID_SERVER) {
 972                 infostream << "Client::ProcessData(): Discarding data not "
 973                         "coming from server: peer_id=" << sender_peer_id
 974                         << std::endl;
 975                 return;
 976         }
 977
 978         // Command must be handled into ToClientCommandHandler
 979         if (command >= TOCLIENT_NUM_MSG_TYPES) {
 980                 infostream << "Client: Ignoring unknown command "
 981                         << command << std::endl;
 982                 return;
 983         }
 984
 985         /*
 986          * Those packets are handled before m_server_ser_ver is set, it's normal
 987          * But we must use the new ToClientConnectionState in the future,
 988          * as a byte mask
 989          */
 990         if(toClientCommandTable[command].state == TOCLIENT_STATE_NOT_CONNECTED) {
 991                 handleCommand(pkt);
 992                 return;
 993         }
 994
 995         if(m_server_ser_ver == SER_FMT_VER_INVALID) {
 996                 infostream << "Client: Server serialization"
 997                                 " format invalid or not initialized."
 998                                 " Skipping incoming command=" << command << std::endl;
 999                 return;
1000         }
1001
1002         /*
1003           Handle runtime commands
1004         */
1005
1006         handleCommand(pkt);
1007 }
1008
1009 void Client::Send(NetworkPacket* pkt)
1010 {
1011         m_con.Send(PEER_ID_SERVER,
1012                 serverCommandFactoryTable[pkt->getCommand()].channel,
1013                 pkt,
1014                 serverCommandFactoryTable[pkt->getCommand()].reliable);
1015 }
1016
1017 // Will fill up 12 + 12 + 4 + 4 + 4 bytes
1018 void writePlayerPos(LocalPlayer *myplayer, ClientMap *clientMap, NetworkPacket *pkt)
1019 {
1020         v3f pf           = myplayer->getPosition() * 100;
1021         v3f sf           = myplayer->getSpeed() * 100;
1022         s32 pitch        = myplayer->getPitch() * 100;
1023         s32 yaw          = myplayer->getYaw() * 100;
1024         u32 keyPressed   = myplayer->keyPressed;
1025         // scaled by 80, so that pi can fit into a u8
1026         u8 fov           = clientMap->getCameraFov() * 80;
1027         u8 wanted_range  = MYMIN(255,
1028                         std::ceil(clientMap->getControl().wanted_range / MAP_BLOCKSIZE));
1029
1030         v3s32 position(pf.X, pf.Y, pf.Z);
1031         v3s32 speed(sf.X, sf.Y, sf.Z);
1032
1033         /*
1034                 Format:
1035                 [0] v3s32 position*100
1036                 [12] v3s32 speed*100
1037                 [12+12] s32 pitch*100
1038                 [12+12+4] s32 yaw*100
1039                 [12+12+4+4] u32 keyPressed
1040                 [12+12+4+4+4] u8 fov*80
1041                 [12+12+4+4+4+1] u8 ceil(wanted_range / MAP_BLOCKSIZE)
1042         */
1043         *pkt << position << speed << pitch << yaw << keyPressed;
1044         *pkt << fov << wanted_range;
1045 }
1046
1047 void Client::interact(u8 action, const PointedThing& pointed)
1048 {
1049         if(m_state != LC_Ready) {
1050                 errorstream << "Client::interact() "
1051                                 "Canceled (not connected)"
1052                                 << std::endl;
1053                 return;
1054         }
1055
1056         LocalPlayer *myplayer = m_env.getLocalPlayer();
1057         if (myplayer == NULL)
1058                 return;
1059
1060         /*
1061                 [0] u16 command
1062                 [2] u8 action
1063                 [3] u16 item
1064                 [5] u32 length of the next item (plen)
1065                 [9] serialized PointedThing
1066                 [9 + plen] player position information
1067                 actions:
1068                 0: start digging (from undersurface) or use
1069                 1: stop digging (all parameters ignored)
1070                 2: digging completed
1071                 3: place block or item (to abovesurface)
1072                 4: use item
1073                 5: perform secondary action of item
1074         */
1075
1076         NetworkPacket pkt(TOSERVER_INTERACT, 1 + 2 + 0);
1077
1078         pkt << action;
1079         pkt << (u16)getPlayerItem();
1080
1081         std::ostringstream tmp_os(std::ios::binary);
1082         pointed.serialize(tmp_os);
1083
1084         pkt.putLongString(tmp_os.str());
1085
1086         writePlayerPos(myplayer, &m_env.getClientMap(), &pkt);
1087
1088         Send(&pkt);
1089 }
1090
1091 void Client::deleteAuthData()
1092 {
1093         if (!m_auth_data)
1094                 return;
1095
1096         switch (m_chosen_auth_mech) {
1097                 case AUTH_MECHANISM_FIRST_SRP:
1098                         break;
1099                 case AUTH_MECHANISM_SRP:
1100                 case AUTH_MECHANISM_LEGACY_PASSWORD:
1101                         srp_user_delete((SRPUser *) m_auth_data);
1102                         m_auth_data = NULL;
1103                         break;
1104                 case AUTH_MECHANISM_NONE:
1105                         break;
1106         }
1107         m_chosen_auth_mech = AUTH_MECHANISM_NONE;
1108 }
1109
1110
1111 AuthMechanism Client::choseAuthMech(const u32 mechs)
1112 {
1113         if (mechs & AUTH_MECHANISM_SRP)
1114                 return AUTH_MECHANISM_SRP;
1115
1116         if (mechs & AUTH_MECHANISM_FIRST_SRP)
1117                 return AUTH_MECHANISM_FIRST_SRP;
1118
1119         if (mechs & AUTH_MECHANISM_LEGACY_PASSWORD)
1120                 return AUTH_MECHANISM_LEGACY_PASSWORD;
1121
1122         return AUTH_MECHANISM_NONE;
1123 }
1124
1125 void Client::sendLegacyInit(const char* playerName, const char* playerPassword)
1126 {
1127         NetworkPacket pkt(TOSERVER_INIT_LEGACY,
1128                         1 + PLAYERNAME_SIZE + PASSWORD_SIZE + 2 + 2);
1129
1130         u16 proto_version_min = g_settings->getFlag("send_pre_v25_init") ?
1131                 CLIENT_PROTOCOL_VERSION_MIN_LEGACY : CLIENT_PROTOCOL_VERSION_MIN;
1132
1133         pkt << (u8) SER_FMT_VER_HIGHEST_READ;
1134         pkt.putRawString(playerName,PLAYERNAME_SIZE);
1135         pkt.putRawString(playerPassword, PASSWORD_SIZE);
1136         pkt << (u16) proto_version_min << (u16) CLIENT_PROTOCOL_VERSION_MAX;
1137
1138         Send(&pkt);
1139 }
1140
1141 void Client::sendInit(const std::string &playerName)
1142 {
1143         NetworkPacket pkt(TOSERVER_INIT, 1 + 2 + 2 + (1 + playerName.size()));
1144
1145         // we don't support network compression yet
1146         u16 supp_comp_modes = NETPROTO_COMPRESSION_NONE;
1147
1148         u16 proto_version_min = g_settings->getFlag("send_pre_v25_init") ?
1149                 CLIENT_PROTOCOL_VERSION_MIN_LEGACY : CLIENT_PROTOCOL_VERSION_MIN;
1150
1151         pkt << (u8) SER_FMT_VER_HIGHEST_READ << (u16) supp_comp_modes;
1152         pkt << (u16) proto_version_min << (u16) CLIENT_PROTOCOL_VERSION_MAX;
1153         pkt << playerName;
1154
1155         Send(&pkt);
1156 }
1157
1158 void Client::startAuth(AuthMechanism chosen_auth_mechanism)
1159 {
1160         m_chosen_auth_mech = chosen_auth_mechanism;
1161
1162         switch (chosen_auth_mechanism) {
1163                 case AUTH_MECHANISM_FIRST_SRP: {
1164                         // send srp verifier to server
1165                         std::string verifier;
1166                         std::string salt;
1167                         generate_srp_verifier_and_salt(getPlayerName(), m_password,
1168                                 &verifier, &salt);
1169
1170                         NetworkPacket resp_pkt(TOSERVER_FIRST_SRP, 0);
1171                         resp_pkt << salt << verifier << (u8)((m_password == "") ? 1 : 0);
1172
1173                         Send(&resp_pkt);
1174                         break;
1175                 }
1176                 case AUTH_MECHANISM_SRP:
1177                 case AUTH_MECHANISM_LEGACY_PASSWORD: {
1178                         u8 based_on = 1;
1179
1180                         if (chosen_auth_mechanism == AUTH_MECHANISM_LEGACY_PASSWORD) {
1181                                 m_password = translate_password(getPlayerName(), m_password);
1182                                 based_on = 0;
1183                         }
1184
1185                         std::string playername_u = lowercase(getPlayerName());
1186                         m_auth_data = srp_user_new(SRP_SHA256, SRP_NG_2048,
1187                                 getPlayerName().c_str(), playername_u.c_str(),
1188                                 (const unsigned char *) m_password.c_str(),
1189                                 m_password.length(), NULL, NULL);
1190                         char *bytes_A = 0;
1191                         size_t len_A = 0;
1192                         SRP_Result res = srp_user_start_authentication(
1193                                 (struct SRPUser *) m_auth_data, NULL, NULL, 0,
1194                                 (unsigned char **) &bytes_A, &len_A);
1195                         FATAL_ERROR_IF(res != SRP_OK, "Creating local SRP user failed.");
1196
1197                         NetworkPacket resp_pkt(TOSERVER_SRP_BYTES_A, 0);
1198                         resp_pkt << std::string(bytes_A, len_A) << based_on;
1199                         Send(&resp_pkt);
1200                         break;
1201                 }
1202                 case AUTH_MECHANISM_NONE:
1203                         break; // not handled in this method
1204         }
1205 }
1206
1207 void Client::sendDeletedBlocks(std::vector<v3s16> &blocks)
1208 {
1209         NetworkPacket pkt(TOSERVER_DELETEDBLOCKS, 1 + sizeof(v3s16) * blocks.size());
1210
1211         pkt << (u8) blocks.size();
1212
1213         u32 k = 0;
1214         for(std::vector<v3s16>::iterator
1215                         j = blocks.begin();
1216                         j != blocks.end(); ++j) {
1217                 pkt << *j;
1218                 k++;
1219         }
1220
1221         Send(&pkt);
1222 }
1223
1224 void Client::sendGotBlocks(v3s16 block)
1225 {
1226         NetworkPacket pkt(TOSERVER_GOTBLOCKS, 1 + 6);
1227         pkt << (u8) 1 << block;
1228         Send(&pkt);
1229 }
1230
1231 void Client::sendRemovedSounds(std::vector<s32> &soundList)
1232 {
1233         size_t server_ids = soundList.size();
1234         assert(server_ids <= 0xFFFF);
1235
1236         NetworkPacket pkt(TOSERVER_REMOVED_SOUNDS, 2 + server_ids * 4);
1237
1238         pkt << (u16) (server_ids & 0xFFFF);
1239
1240         for(std::vector<s32>::iterator i = soundList.begin();
1241                         i != soundList.end(); ++i)
1242                 pkt << *i;
1243
1244         Send(&pkt);
1245 }
1246
1247 void Client::sendNodemetaFields(v3s16 p, const std::string &formname,
1248                 const StringMap &fields)
1249 {
1250         size_t fields_size = fields.size();
1251
1252         FATAL_ERROR_IF(fields_size > 0xFFFF, "Unsupported number of nodemeta fields");
1253
1254         NetworkPacket pkt(TOSERVER_NODEMETA_FIELDS, 0);
1255
1256         pkt << p << formname << (u16) (fields_size & 0xFFFF);
1257
1258         StringMap::const_iterator it;
1259         for (it = fields.begin(); it != fields.end(); ++it) {
1260                 const std::string &name = it->first;
1261                 const std::string &value = it->second;
1262                 pkt << name;
1263                 pkt.putLongString(value);
1264         }
1265
1266         Send(&pkt);
1267 }
1268
1269 void Client::sendInventoryFields(const std::string &formname,
1270                 const StringMap &fields)
1271 {
1272         size_t fields_size = fields.size();
1273         FATAL_ERROR_IF(fields_size > 0xFFFF, "Unsupported number of inventory fields");
1274
1275         NetworkPacket pkt(TOSERVER_INVENTORY_FIELDS, 0);
1276         pkt << formname << (u16) (fields_size & 0xFFFF);
1277
1278         StringMap::const_iterator it;
1279         for (it = fields.begin(); it != fields.end(); ++it) {
1280                 const std::string &name  = it->first;
1281                 const std::string &value = it->second;
1282                 pkt << name;
1283                 pkt.putLongString(value);
1284         }
1285
1286         Send(&pkt);
1287 }
1288
1289 void Client::sendInventoryAction(InventoryAction *a)
1290 {
1291         std::ostringstream os(std::ios_base::binary);
1292
1293         a->serialize(os);
1294
1295         // Make data buffer
1296         std::string s = os.str();
1297
1298         NetworkPacket pkt(TOSERVER_INVENTORY_ACTION, s.size());
1299         pkt.putRawString(s.c_str(),s.size());
1300
1301         Send(&pkt);
1302 }
1303
1304 void Client::sendChatMessage(const std::wstring &message)
1305 {
1306         NetworkPacket pkt(TOSERVER_CHAT_MESSAGE, 2 + message.size() * sizeof(u16));
1307
1308         pkt << message;
1309
1310         Send(&pkt);
1311 }
1312
1313 void Client::sendChangePassword(const std::string &oldpassword,
1314         const std::string &newpassword)
1315 {
1316         LocalPlayer *player = m_env.getLocalPlayer();
1317         if (player == NULL)
1318                 return;
1319
1320         std::string playername = player->getName();
1321         if (m_proto_ver >= 25) {
1322                 // get into sudo mode and then send new password to server
1323                 m_password = oldpassword;
1324                 m_new_password = newpassword;
1325                 startAuth(choseAuthMech(m_sudo_auth_methods));
1326         } else {
1327                 std::string oldpwd = translate_password(playername, oldpassword);
1328                 std::string newpwd = translate_password(playername, newpassword);
1329
1330                 NetworkPacket pkt(TOSERVER_PASSWORD_LEGACY, 2 * PASSWORD_SIZE);
1331
1332                 for (u8 i = 0; i < PASSWORD_SIZE; i++) {
1333                         pkt << (u8) (i < oldpwd.length() ? oldpwd[i] : 0);
1334                 }
1335
1336                 for (u8 i = 0; i < PASSWORD_SIZE; i++) {
1337                         pkt << (u8) (i < newpwd.length() ? newpwd[i] : 0);
1338                 }
1339                 Send(&pkt);
1340         }
1341 }
1342
1343
1344 void Client::sendDamage(u8 damage)
1345 {
1346         DSTACK(FUNCTION_NAME);
1347
1348         NetworkPacket pkt(TOSERVER_DAMAGE, sizeof(u8));
1349         pkt << damage;
1350         Send(&pkt);
1351 }
1352
1353 void Client::sendBreath(u16 breath)
1354 {
1355         DSTACK(FUNCTION_NAME);
1356
1357         // Protocol v29 make this obsolete
1358         if (m_proto_ver >= 29)
1359                 return;
1360
1361         NetworkPacket pkt(TOSERVER_BREATH, sizeof(u16));
1362         pkt << breath;
1363         Send(&pkt);
1364 }
1365
1366 void Client::sendRespawn()
1367 {
1368         DSTACK(FUNCTION_NAME);
1369
1370         NetworkPacket pkt(TOSERVER_RESPAWN, 0);
1371         Send(&pkt);
1372 }
1373
1374 void Client::sendReady()
1375 {
1376         DSTACK(FUNCTION_NAME);
1377
1378         NetworkPacket pkt(TOSERVER_CLIENT_READY,
1379                         1 + 1 + 1 + 1 + 2 + sizeof(char) * strlen(g_version_hash));
1380
1381         pkt << (u8) VERSION_MAJOR << (u8) VERSION_MINOR << (u8) VERSION_PATCH
1382                 << (u8) 0 << (u16) strlen(g_version_hash);
1383
1384         pkt.putRawString(g_version_hash, (u16) strlen(g_version_hash));
1385         Send(&pkt);
1386 }
1387
1388 void Client::sendPlayerPos()
1389 {
1390         LocalPlayer *myplayer = m_env.getLocalPlayer();
1391         if(myplayer == NULL)
1392                 return;
1393
1394         ClientMap &map = m_env.getClientMap();
1395
1396         u8 camera_fov    = map.getCameraFov();
1397         u8 wanted_range  = map.getControl().wanted_range;
1398
1399         // Save bandwidth by only updating position when something changed
1400         if(myplayer->last_position        == myplayer->getPosition() &&
1401                         myplayer->last_speed        == myplayer->getSpeed()    &&
1402                         myplayer->last_pitch        == myplayer->getPitch()    &&
1403                         myplayer->last_yaw          == myplayer->getYaw()      &&
1404                         myplayer->last_keyPressed   == myplayer->keyPressed    &&
1405                         myplayer->last_camera_fov   == camera_fov              &&
1406                         myplayer->last_wanted_range == wanted_range)
1407                 return;
1408
1409         myplayer->last_position     = myplayer->getPosition();
1410         myplayer->last_speed        = myplayer->getSpeed();
1411         myplayer->last_pitch        = myplayer->getPitch();
1412         myplayer->last_yaw          = myplayer->getYaw();
1413         myplayer->last_keyPressed   = myplayer->keyPressed;
1414         myplayer->last_camera_fov   = camera_fov;
1415         myplayer->last_wanted_range = wanted_range;
1416
1417         //infostream << "Sending Player Position information" << std::endl;
1418
1419         u16 our_peer_id;
1420         {
1421                 //MutexAutoLock lock(m_con_mutex); //bulk comment-out
1422                 our_peer_id = m_con.GetPeerID();
1423         }
1424
1425         // Set peer id if not set already
1426         if(myplayer->peer_id == PEER_ID_INEXISTENT)
1427                 myplayer->peer_id = our_peer_id;
1428
1429         assert(myplayer->peer_id == our_peer_id);
1430
1431         NetworkPacket pkt(TOSERVER_PLAYERPOS, 12 + 12 + 4 + 4 + 4 + 1 + 1);
1432
1433         writePlayerPos(myplayer, &map, &pkt);
1434
1435         Send(&pkt);
1436 }
1437
1438 void Client::sendPlayerItem(u16 item)
1439 {
1440         LocalPlayer *myplayer = m_env.getLocalPlayer();
1441         if(myplayer == NULL)
1442                 return;
1443
1444         u16 our_peer_id = m_con.GetPeerID();
1445
1446         // Set peer id if not set already
1447         if(myplayer->peer_id == PEER_ID_INEXISTENT)
1448                 myplayer->peer_id = our_peer_id;
1449         assert(myplayer->peer_id == our_peer_id);
1450
1451         NetworkPacket pkt(TOSERVER_PLAYERITEM, 2);
1452
1453         pkt << item;
1454
1455         Send(&pkt);
1456 }
1457
1458 void Client::removeNode(v3s16 p)
1459 {
1460         std::map<v3s16, MapBlock*> modified_blocks;
1461
1462         try {
1463                 m_env.getMap().removeNodeAndUpdate(p, modified_blocks);
1464         }
1465         catch(InvalidPositionException &e) {
1466         }
1467
1468         for(std::map<v3s16, MapBlock *>::iterator
1469                         i = modified_blocks.begin();
1470                         i != modified_blocks.end(); ++i) {
1471                 addUpdateMeshTaskWithEdge(i->first, false, true);
1472         }
1473 }
1474
1475 MapNode Client::getNode(v3s16 p, bool *is_valid_position)
1476 {
1477         return m_env.getMap().getNodeNoEx(p, is_valid_position);
1478 }
1479
1480 void Client::addNode(v3s16 p, MapNode n, bool remove_metadata)
1481 {
1482         //TimeTaker timer1("Client::addNode()");
1483
1484         std::map<v3s16, MapBlock*> modified_blocks;
1485
1486         try {
1487                 //TimeTaker timer3("Client::addNode(): addNodeAndUpdate");
1488                 m_env.getMap().addNodeAndUpdate(p, n, modified_blocks, remove_metadata);
1489         }
1490         catch(InvalidPositionException &e) {
1491         }
1492
1493         for(std::map<v3s16, MapBlock *>::iterator
1494                         i = modified_blocks.begin();
1495                         i != modified_blocks.end(); ++i) {
1496                 addUpdateMeshTaskWithEdge(i->first, false, true);
1497         }
1498 }
1499
1500 void Client::setPlayerControl(PlayerControl &control)
1501 {
1502         LocalPlayer *player = m_env.getLocalPlayer();
1503         assert(player != NULL);
1504         player->control = control;
1505 }
1506
1507 void Client::selectPlayerItem(u16 item)
1508 {
1509         m_playeritem = item;
1510         m_inventory_updated = true;
1511         sendPlayerItem(item);
1512 }
1513
1514 // Returns true if the inventory of the local player has been
1515 // updated from the server. If it is true, it is set to false.
1516 bool Client::getLocalInventoryUpdated()
1517 {
1518         bool updated = m_inventory_updated;
1519         m_inventory_updated = false;
1520         return updated;
1521 }
1522
1523 // Copies the inventory of the local player to parameter
1524 void Client::getLocalInventory(Inventory &dst)
1525 {
1526         LocalPlayer *player = m_env.getLocalPlayer();
1527         assert(player != NULL);
1528         dst = player->inventory;
1529 }
1530
1531 Inventory* Client::getInventory(const InventoryLocation &loc)
1532 {
1533         switch(loc.type){
1534         case InventoryLocation::UNDEFINED:
1535         {}
1536         break;
1537         case InventoryLocation::CURRENT_PLAYER:
1538         {
1539                 LocalPlayer *player = m_env.getLocalPlayer();
1540                 assert(player != NULL);
1541                 return &player->inventory;
1542         }
1543         break;
1544         case InventoryLocation::PLAYER:
1545         {
1546                 // Check if we are working with local player inventory
1547                 LocalPlayer *player = m_env.getLocalPlayer();
1548                 if (!player || strcmp(player->getName(), loc.name.c_str()) != 0)
1549                         return NULL;
1550                 return &player->inventory;
1551         }
1552         break;
1553         case InventoryLocation::NODEMETA:
1554         {
1555                 NodeMetadata *meta = m_env.getMap().getNodeMetadata(loc.p);
1556                 if(!meta)
1557                         return NULL;
1558                 return meta->getInventory();
1559         }
1560         break;
1561         case InventoryLocation::DETACHED:
1562         {
1563                 if (m_detached_inventories.count(loc.name) == 0)
1564                         return NULL;
1565                 return m_detached_inventories[loc.name];
1566         }
1567         break;
1568         default:
1569                 FATAL_ERROR("Invalid inventory location type.");
1570                 break;
1571         }
1572         return NULL;
1573 }
1574
1575 void Client::inventoryAction(InventoryAction *a)
1576 {
1577         /*
1578                 Send it to the server
1579         */
1580         sendInventoryAction(a);
1581
1582         /*
1583                 Predict some local inventory changes
1584         */
1585         a->clientApply(this, this);
1586
1587         // Remove it
1588         delete a;
1589 }
1590
1591 float Client::getAnimationTime()
1592 {
1593         return m_animation_time;
1594 }
1595
1596 int Client::getCrackLevel()
1597 {
1598         return m_crack_level;
1599 }
1600
1601 void Client::setCrack(int level, v3s16 pos)
1602 {
1603         int old_crack_level = m_crack_level;
1604         v3s16 old_crack_pos = m_crack_pos;
1605
1606         m_crack_level = level;
1607         m_crack_pos = pos;
1608
1609         if(old_crack_level >= 0 && (level < 0 || pos != old_crack_pos))
1610         {
1611                 // remove old crack
1612                 addUpdateMeshTaskForNode(old_crack_pos, false, true);
1613         }
1614         if(level >= 0 && (old_crack_level < 0 || pos != old_crack_pos))
1615         {
1616                 // add new crack
1617                 addUpdateMeshTaskForNode(pos, false, true);
1618         }
1619 }
1620
1621 u16 Client::getHP()
1622 {
1623         LocalPlayer *player = m_env.getLocalPlayer();
1624         assert(player != NULL);
1625         return player->hp;
1626 }
1627
1628 bool Client::getChatMessage(std::wstring &message)
1629 {
1630         if(m_chat_queue.size() == 0)
1631                 return false;
1632         message = m_chat_queue.front();
1633         m_chat_queue.pop();
1634         return true;
1635 }
1636
1637 void Client::typeChatMessage(const std::wstring &message)
1638 {
1639         // Discard empty line
1640         if(message == L"")
1641                 return;
1642
1643         // If message was ate by script API, don't send it to server
1644         if (m_script->on_sending_message(wide_to_utf8(message))) {
1645                 return;
1646         }
1647
1648         // Send to others
1649         sendChatMessage(message);
1650
1651         // Show locally
1652         if (message[0] != L'/')
1653         {
1654                 // compatibility code
1655                 if (m_proto_ver < 29) {
1656                         LocalPlayer *player = m_env.getLocalPlayer();
1657                         assert(player != NULL);
1658                         std::wstring name = narrow_to_wide(player->getName());
1659                         pushToChatQueue((std::wstring)L"<" + name + L"> " + message);
1660                 }
1661         }
1662 }
1663
1664 void Client::addUpdateMeshTask(v3s16 p, bool ack_to_server, bool urgent)
1665 {
1666         MapBlock *b = m_env.getMap().getBlockNoCreateNoEx(p);
1667         if(b == NULL)
1668                 return;
1669
1670         /*
1671                 Create a task to update the mesh of the block
1672         */
1673
1674         MeshMakeData *data = new MeshMakeData(this, m_cache_enable_shaders,
1675                 m_cache_use_tangent_vertices);
1676
1677         {
1678                 //TimeTaker timer("data fill");
1679                 // Release: ~0ms
1680                 // Debug: 1-6ms, avg=2ms
1681                 data->fill(b);
1682                 data->setCrack(m_crack_level, m_crack_pos);
1683                 data->setSmoothLighting(m_cache_smooth_lighting);
1684         }
1685
1686         // Add task to queue
1687         m_mesh_update_thread.enqueueUpdate(p, data, ack_to_server, urgent);
1688 }
1689
1690 void Client::addUpdateMeshTaskWithEdge(v3s16 blockpos, bool ack_to_server, bool urgent)
1691 {
1692         try{
1693                 addUpdateMeshTask(blockpos, ack_to_server, urgent);
1694         }
1695         catch(InvalidPositionException &e){}
1696
1697         // Leading edge
1698         for (int i=0;i<6;i++)
1699         {
1700                 try{
1701                         v3s16 p = blockpos + g_6dirs[i];
1702                         addUpdateMeshTask(p, false, urgent);
1703                 }
1704                 catch(InvalidPositionException &e){}
1705         }
1706 }
1707
1708 void Client::addUpdateMeshTaskForNode(v3s16 nodepos, bool ack_to_server, bool urgent)
1709 {
1710         {
1711                 v3s16 p = nodepos;
1712                 infostream<<"Client::addUpdateMeshTaskForNode(): "
1713                                 <<"("<<p.X<<","<<p.Y<<","<<p.Z<<")"
1714                                 <<std::endl;
1715         }
1716
1717         v3s16 blockpos          = getNodeBlockPos(nodepos);
1718         v3s16 blockpos_relative = blockpos * MAP_BLOCKSIZE;
1719
1720         try{
1721                 addUpdateMeshTask(blockpos, ack_to_server, urgent);
1722         }
1723         catch(InvalidPositionException &e) {}
1724
1725         // Leading edge
1726         if(nodepos.X == blockpos_relative.X){
1727                 try{
1728                         v3s16 p = blockpos + v3s16(-1,0,0);
1729                         addUpdateMeshTask(p, false, urgent);
1730                 }
1731                 catch(InvalidPositionException &e){}
1732         }
1733
1734         if(nodepos.Y == blockpos_relative.Y){
1735                 try{
1736                         v3s16 p = blockpos + v3s16(0,-1,0);
1737                         addUpdateMeshTask(p, false, urgent);
1738                 }
1739                 catch(InvalidPositionException &e){}
1740         }
1741
1742         if(nodepos.Z == blockpos_relative.Z){
1743                 try{
1744                         v3s16 p = blockpos + v3s16(0,0,-1);
1745                         addUpdateMeshTask(p, false, urgent);
1746                 }
1747                 catch(InvalidPositionException &e){}
1748         }
1749 }
1750
1751 ClientEvent Client::getClientEvent()
1752 {
1753         ClientEvent event;
1754         if (m_client_event_queue.empty()) {
1755                 event.type = CE_NONE;
1756         }
1757         else {
1758                 event = m_client_event_queue.front();
1759                 m_client_event_queue.pop();
1760         }
1761         return event;
1762 }
1763
1764 float Client::mediaReceiveProgress()
1765 {
1766         if (m_media_downloader)
1767                 return m_media_downloader->getProgress();
1768         else
1769                 return 1.0; // downloader only exists when not yet done
1770 }
1771
1772 typedef struct TextureUpdateArgs {
1773         IrrlichtDevice *device;
1774         gui::IGUIEnvironment *guienv;
1775         u32 last_time_ms;
1776         u16 last_percent;
1777         const wchar_t* text_base;
1778 } TextureUpdateArgs;
1779
1780 void texture_update_progress(void *args, u32 progress, u32 max_progress)
1781 {
1782                 TextureUpdateArgs* targs = (TextureUpdateArgs*) args;
1783                 u16 cur_percent = ceil(progress / (double) max_progress * 100.);
1784
1785                 // update the loading menu -- if neccessary
1786                 bool do_draw = false;
1787                 u32 time_ms = targs->last_time_ms;
1788                 if (cur_percent != targs->last_percent) {
1789                         targs->last_percent = cur_percent;
1790                         time_ms = getTimeMs();
1791                         // only draw when the user will notice something:
1792                         do_draw = (time_ms - targs->last_time_ms > 100);
1793                 }
1794
1795                 if (do_draw) {
1796                         targs->last_time_ms = time_ms;
1797                         std::basic_stringstream<wchar_t> strm;
1798                         strm << targs->text_base << " " << targs->last_percent << "%...";
1799                         draw_load_screen(strm.str(), targs->device, targs->guienv, 0,
1800                                 72 + (u16) ((18. / 100.) * (double) targs->last_percent));
1801                 }
1802 }
1803
1804 void Client::afterContentReceived(IrrlichtDevice *device)
1805 {
1806         infostream<<"Client::afterContentReceived() started"<<std::endl;
1807         assert(m_itemdef_received); // pre-condition
1808         assert(m_nodedef_received); // pre-condition
1809         assert(mediaReceived()); // pre-condition
1810
1811         const wchar_t* text = wgettext("Loading textures...");
1812
1813         // Clear cached pre-scaled 2D GUI images, as this cache
1814         // might have images with the same name but different
1815         // content from previous sessions.
1816         guiScalingCacheClear(device->getVideoDriver());
1817
1818         // Rebuild inherited images and recreate textures
1819         infostream<<"- Rebuilding images and textures"<<std::endl;
1820         draw_load_screen(text,device, guienv, 0, 70);
1821         m_tsrc->rebuildImagesAndTextures();
1822         delete[] text;
1823
1824         // Rebuild shaders
1825         infostream<<"- Rebuilding shaders"<<std::endl;
1826         text = wgettext("Rebuilding shaders...");
1827         draw_load_screen(text, device, guienv, 0, 71);
1828         m_shsrc->rebuildShaders();
1829         delete[] text;
1830
1831         // Update node aliases
1832         infostream<<"- Updating node aliases"<<std::endl;
1833         text = wgettext("Initializing nodes...");
1834         draw_load_screen(text, device, guienv, 0, 72);
1835         m_nodedef->updateAliases(m_itemdef);
1836         std::string texture_path = g_settings->get("texture_path");
1837         if (texture_path != "" && fs::IsDir(texture_path))
1838                 m_nodedef->applyTextureOverrides(texture_path + DIR_DELIM + "override.txt");
1839         m_nodedef->setNodeRegistrationStatus(true);
1840         m_nodedef->runNodeResolveCallbacks();
1841         delete[] text;
1842
1843         // Update node textures and assign shaders to each tile
1844         infostream<<"- Updating node textures"<<std::endl;
1845         TextureUpdateArgs tu_args;
1846         tu_args.device = device;
1847         tu_args.guienv = guienv;
1848         tu_args.last_time_ms = getTimeMs();
1849         tu_args.last_percent = 0;
1850         tu_args.text_base =  wgettext("Initializing nodes");
1851         m_nodedef->updateTextures(this, texture_update_progress, &tu_args);
1852         delete[] tu_args.text_base;
1853
1854         // Start mesh update thread after setting up content definitions
1855         infostream<<"- Starting mesh update thread"<<std::endl;
1856         m_mesh_update_thread.start();
1857
1858         m_state = LC_Ready;
1859         sendReady();
1860         text = wgettext("Done!");
1861         draw_load_screen(text, device, guienv, 0, 100);
1862         infostream<<"Client::afterContentReceived() done"<<std::endl;
1863         delete[] text;
1864 }
1865
1866 float Client::getRTT()
1867 {
1868         return m_con.getPeerStat(PEER_ID_SERVER,con::AVG_RTT);
1869 }
1870
1871 float Client::getCurRate()
1872 {
1873         return ( m_con.getLocalStat(con::CUR_INC_RATE) +
1874                         m_con.getLocalStat(con::CUR_DL_RATE));
1875 }
1876
1877 void Client::makeScreenshot(IrrlichtDevice *device)
1878 {
1879         irr::video::IVideoDriver *driver = device->getVideoDriver();
1880         irr::video::IImage* const raw_image = driver->createScreenShot();
1881
1882         if (!raw_image)
1883                 return;
1884
1885         time_t t = time(NULL);
1886         struct tm *tm = localtime(&t);
1887
1888         char timetstamp_c[64];
1889         strftime(timetstamp_c, sizeof(timetstamp_c), "%Y%m%d_%H%M%S", tm);
1890
1891         std::string filename_base = g_settings->get("screenshot_path")
1892                         + DIR_DELIM
1893                         + std::string("screenshot_")
1894                         + std::string(timetstamp_c);
1895         std::string filename_ext = "." + g_settings->get("screenshot_format");
1896         std::string filename;
1897
1898         u32 quality = (u32)g_settings->getS32("screenshot_quality");
1899         quality = MYMIN(MYMAX(quality, 0), 100) / 100.0 * 255;
1900
1901         // Try to find a unique filename
1902         unsigned serial = 0;
1903
1904         while (serial < SCREENSHOT_MAX_SERIAL_TRIES) {
1905                 filename = filename_base + (serial > 0 ? ("_" + itos(serial)) : "") + filename_ext;
1906                 std::ifstream tmp(filename.c_str());
1907                 if (!tmp.good())
1908                         break;  // File did not apparently exist, we'll go with it
1909                 serial++;
1910         }
1911
1912         if (serial == SCREENSHOT_MAX_SERIAL_TRIES) {
1913                 infostream << "Could not find suitable filename for screenshot" << std::endl;
1914         } else {
1915                 irr::video::IImage* const image =
1916                                 driver->createImage(video::ECF_R8G8B8, raw_image->getDimension());
1917
1918                 if (image) {
1919                         raw_image->copyTo(image);
1920
1921                         std::ostringstream sstr;
1922                         if (driver->writeImageToFile(image, filename.c_str(), quality)) {
1923                                 sstr << "Saved screenshot to '" << filename << "'";
1924                         } else {
1925                                 sstr << "Failed to save screenshot '" << filename << "'";
1926                         }
1927                         pushToChatQueue(narrow_to_wide(sstr.str()));
1928                         infostream << sstr.str() << std::endl;
1929                         image->drop();
1930                 }
1931         }
1932
1933         raw_image->drop();
1934 }
1935
1936 bool Client::shouldShowMinimap() const
1937 {
1938         return !m_minimap_disabled_by_server;
1939 }
1940
1941 void Client::showGameChat(const bool show)
1942 {
1943         m_game_ui_flags->show_chat = show;
1944 }
1945
1946 void Client::showGameHud(const bool show)
1947 {
1948         m_game_ui_flags->show_hud = show;
1949 }
1950
1951 void Client::showMinimap(const bool show)
1952 {
1953         m_game_ui_flags->show_minimap = show;
1954 }
1955
1956 void Client::showProfiler(const bool show)
1957 {
1958         m_game_ui_flags->show_profiler_graph = show;
1959 }
1960
1961 void Client::showGameFog(const bool show)
1962 {
1963         m_game_ui_flags->force_fog_off = !show;
1964 }
1965
1966 void Client::showGameDebug(const bool show)
1967 {
1968         m_game_ui_flags->show_debug = show;
1969 }
1970
1971 // IGameDef interface
1972 // Under envlock
1973 IItemDefManager* Client::getItemDefManager()
1974 {
1975         return m_itemdef;
1976 }
1977 INodeDefManager* Client::getNodeDefManager()
1978 {
1979         return m_nodedef;
1980 }
1981 ICraftDefManager* Client::getCraftDefManager()
1982 {
1983         return NULL;
1984         //return m_craftdef;
1985 }
1986 ITextureSource* Client::getTextureSource()
1987 {
1988         return m_tsrc;
1989 }
1990 IShaderSource* Client::getShaderSource()
1991 {
1992         return m_shsrc;
1993 }
1994 scene::ISceneManager* Client::getSceneManager()
1995 {
1996         return m_device->getSceneManager();
1997 }
1998 u16 Client::allocateUnknownNodeId(const std::string &name)
1999 {
2000         errorstream << "Client::allocateUnknownNodeId(): "
2001                         << "Client cannot allocate node IDs" << std::endl;
2002         FATAL_ERROR("Client allocated unknown node");
2003
2004         return CONTENT_IGNORE;
2005 }
2006 ISoundManager* Client::getSoundManager()
2007 {
2008         return m_sound;
2009 }
2010 MtEventManager* Client::getEventManager()
2011 {
2012         return m_event;
2013 }
2014
2015 ParticleManager* Client::getParticleManager()
2016 {
2017         return &m_particle_manager;
2018 }
2019
2020 scene::IAnimatedMesh* Client::getMesh(const std::string &filename)
2021 {
2022         StringMap::const_iterator it = m_mesh_data.find(filename);
2023         if (it == m_mesh_data.end()) {
2024                 errorstream << "Client::getMesh(): Mesh not found: \"" << filename
2025                         << "\"" << std::endl;
2026                 return NULL;
2027         }
2028         const std::string &data    = it->second;
2029         scene::ISceneManager *smgr = m_device->getSceneManager();
2030
2031         // Create the mesh, remove it from cache and return it
2032         // This allows unique vertex colors and other properties for each instance
2033         Buffer<char> data_rw(data.c_str(), data.size()); // Const-incorrect Irrlicht
2034         io::IFileSystem *irrfs = m_device->getFileSystem();
2035         io::IReadFile *rfile   = irrfs->createMemoryReadFile(
2036                         *data_rw, data_rw.getSize(), filename.c_str());
2037         FATAL_ERROR_IF(!rfile, "Could not create/open RAM file");
2038
2039         scene::IAnimatedMesh *mesh = smgr->getMesh(rfile);
2040         rfile->drop();
2041         // NOTE: By playing with Irrlicht refcounts, maybe we could cache a bunch
2042         // of uniquely named instances and re-use them
2043         mesh->grab();
2044         smgr->getMeshCache()->removeMesh(mesh);
2045         return mesh;
2046 }
2047
2048 bool Client::registerModStorage(ModMetadata *storage)
2049 {
2050         if (m_mod_storages.find(storage->getModName()) != m_mod_storages.end()) {
2051                 errorstream << "Unable to register same mod storage twice. Storage name: "
2052                                 << storage->getModName() << std::endl;
2053                 return false;
2054         }
2055
2056         m_mod_storages[storage->getModName()] = storage;
2057         return true;
2058 }
2059
2060 void Client::unregisterModStorage(const std::string &name)
2061 {
2062         UNORDERED_MAP<std::string, ModMetadata *>::const_iterator it = m_mod_storages.find(name);
2063         if (it != m_mod_storages.end()) {
2064                 // Save unconditionaly on unregistration
2065                 it->second->save(getModStoragePath());
2066                 m_mod_storages.erase(name);
2067         }
2068 }
2069
2070 std::string Client::getModStoragePath() const
2071 {
2072         return porting::path_user + DIR_DELIM + "client" + DIR_DELIM + "mod_storage";
2073 }
2074