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 <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"
  30 #include "util/srp.h"
  31 #include "client.h"
  32 #include "network/clientopcodes.h"
  33 #include "filesys.h"
  34 #include "porting.h"
  35 #include "mapblock_mesh.h"
  36 #include "mapblock.h"
  37 #include "minimap.h"
  38 #include "settings.h"
  39 #include "profiler.h"
  40 #include "gettext.h"
  41 #include "log.h"
  42 #include "nodemetadata.h"
  43 #include "itemdef.h"
  44 #include "shader.h"
  45 #include "clientmap.h"
  46 #include "clientmedia.h"
  47 #include "sound.h"
  48 #include "IMeshCache.h"
  49 #include "config.h"
  50 #include "version.h"
  51 #include "drawscene.h"
  52 #include "database-sqlite3.h"
  53 #include "serialization.h"
  54 #include "guiscalingfilter.h"
  55
  56 extern gui::IGUIEnvironment* guienv;
  57
  58 /*
  59         QueuedMeshUpdate
  60 */
  61
  62 QueuedMeshUpdate::QueuedMeshUpdate():
  63         p(-1337,-1337,-1337),
  64         data(NULL),
  65         ack_block_to_server(false)
  66 {
  67 }
  68
  69 QueuedMeshUpdate::~QueuedMeshUpdate()
  70 {
  71         if(data)
  72                 delete data;
  73 }
  74
  75 /*
  76         MeshUpdateQueue
  77 */
  78
  79 MeshUpdateQueue::MeshUpdateQueue()
  80 {
  81 }
  82
  83 MeshUpdateQueue::~MeshUpdateQueue()
  84 {
  85         JMutexAutoLock lock(m_mutex);
  86
  87         for(std::vector<QueuedMeshUpdate*>::iterator
  88                         i = m_queue.begin();
  89                         i != m_queue.end(); i++)
  90         {
  91                 QueuedMeshUpdate *q = *i;
  92                 delete q;
  93         }
  94 }
  95
  96 /*
  97         peer_id=0 adds with nobody to send to
  98 */
  99 void MeshUpdateQueue::addBlock(v3s16 p, MeshMakeData *data, bool ack_block_to_server, bool urgent)
 100 {
 101         DSTACK(__FUNCTION_NAME);
 102
 103         assert(data);   // pre-condition
 104
 105         JMutexAutoLock lock(m_mutex);
 106
 107         if(urgent)
 108                 m_urgents.insert(p);
 109
 110         /*
 111                 Find if block is already in queue.
 112                 If it is, update the data and quit.
 113         */
 114         for(std::vector<QueuedMeshUpdate*>::iterator
 115                         i = m_queue.begin();
 116                         i != m_queue.end(); i++)
 117         {
 118                 QueuedMeshUpdate *q = *i;
 119                 if(q->p == p)
 120                 {
 121                         if(q->data)
 122                                 delete q->data;
 123                         q->data = data;
 124                         if(ack_block_to_server)
 125                                 q->ack_block_to_server = true;
 126                         return;
 127                 }
 128         }
 129
 130         /*
 131                 Add the block
 132         */
 133         QueuedMeshUpdate *q = new QueuedMeshUpdate;
 134         q->p = p;
 135         q->data = data;
 136         q->ack_block_to_server = ack_block_to_server;
 137         m_queue.push_back(q);
 138 }
 139
 140 // Returned pointer must be deleted
 141 // Returns NULL if queue is empty
 142 QueuedMeshUpdate *MeshUpdateQueue::pop()
 143 {
 144         JMutexAutoLock lock(m_mutex);
 145
 146         bool must_be_urgent = !m_urgents.empty();
 147         for(std::vector<QueuedMeshUpdate*>::iterator
 148                         i = m_queue.begin();
 149                         i != m_queue.end(); i++)
 150         {
 151                 QueuedMeshUpdate *q = *i;
 152                 if(must_be_urgent && m_urgents.count(q->p) == 0)
 153                         continue;
 154                 m_queue.erase(i);
 155                 m_urgents.erase(q->p);
 156                 return q;
 157         }
 158         return NULL;
 159 }
 160
 161 /*
 162         MeshUpdateThread
 163 */
 164
 165 void MeshUpdateThread::enqueueUpdate(v3s16 p, MeshMakeData *data,
 166                 bool ack_block_to_server, bool urgent)
 167 {
 168         m_queue_in.addBlock(p, data, ack_block_to_server, urgent);
 169         deferUpdate();
 170 }
 171
 172 void MeshUpdateThread::doUpdate()
 173 {
 174         QueuedMeshUpdate *q;
 175         while ((q = m_queue_in.pop())) {
 176
 177                 ScopeProfiler sp(g_profiler, "Client: Mesh making");
 178
 179                 MapBlockMesh *mesh_new = new MapBlockMesh(q->data, m_camera_offset);
 180
 181                 MeshUpdateResult r;
 182                 r.p = q->p;
 183                 r.mesh = mesh_new;
 184                 r.ack_block_to_server = q->ack_block_to_server;
 185
 186                 m_queue_out.push_back(r);
 187
 188                 delete q;
 189         }
 190 }
 191
 192 /*
 193         Client
 194 */
 195
 196 Client::Client(
 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,
 207                 bool ipv6
 208 ):
 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),
 214         m_tsrc(tsrc),
 215         m_shsrc(shsrc),
 216         m_itemdef(itemdef),
 217         m_nodedef(nodedef),
 218         m_sound(sound),
 219         m_event(event),
 220         m_mesh_update_thread(),
 221         m_env(
 222                 new ClientMap(this, this, control,
 223                         device->getSceneManager()->getRootSceneNode(),
 224                         device->getSceneManager(), 666),
 225                 device->getSceneManager(),
 226                 tsrc, this, device
 227         ),
 228         m_particle_manager(&m_env),
 229         m_con(PROTOCOL_ID, 512, CONNECTION_TIMEOUT, ipv6, this),
 230         m_device(device),
 231         m_server_ser_ver(SER_FMT_VER_INVALID),
 232         m_playeritem(0),
 233         m_inventory_updated(false),
 234         m_inventory_from_server(NULL),
 235         m_inventory_from_server_age(0.0),
 236         m_show_highlighted(false),
 237         m_animation_time(0),
 238         m_crack_level(-1),
 239         m_crack_pos(0,0,0),
 240         m_highlighted_pos(0,0,0),
 241         m_map_seed(0),
 242         m_password(password),
 243         m_chosen_auth_mech(AUTH_MECHANISM_NONE),
 244         m_auth_data(NULL),
 245         m_access_denied(false),
 246         m_itemdef_received(false),
 247         m_nodedef_received(false),
 248         m_media_downloader(new ClientMediaDownloader()),
 249         m_time_of_day_set(false),
 250         m_last_time_of_day_f(-1),
 251         m_time_of_day_update_timer(0),
 252         m_recommended_send_interval(0.1),
 253         m_removed_sounds_check_timer(0),
 254         m_state(LC_Created),
 255         m_localdb(NULL)
 256 {
 257         // Add local player
 258         m_env.addPlayer(new LocalPlayer(this, playername));
 259
 260         m_mapper = new Mapper(device, this);
 261         m_cache_save_interval = g_settings->getU16("server_map_save_interval");
 262
 263         m_cache_smooth_lighting = g_settings->getBool("smooth_lighting");
 264         m_cache_enable_shaders  = g_settings->getBool("enable_shaders");
 265 }
 266
 267 void Client::Stop()
 268 {
 269         //request all client managed threads to stop
 270         m_mesh_update_thread.Stop();
 271         // Save local server map
 272         if (m_localdb) {
 273                 infostream << "Local map saving ended." << std::endl;
 274                 m_localdb->endSave();
 275         }
 276 }
 277
 278 bool Client::isShutdown()
 279 {
 280
 281         if (!m_mesh_update_thread.IsRunning()) return true;
 282
 283         return false;
 284 }
 285
 286 Client::~Client()
 287 {
 288         m_con.Disconnect();
 289
 290         m_mesh_update_thread.Stop();
 291         m_mesh_update_thread.Wait();
 292         while(!m_mesh_update_thread.m_queue_out.empty()) {
 293                 MeshUpdateResult r = m_mesh_update_thread.m_queue_out.pop_frontNoEx();
 294                 delete r.mesh;
 295         }
 296
 297
 298         delete m_inventory_from_server;
 299
 300         // Delete detached inventories
 301         for(std::map<std::string, Inventory*>::iterator
 302                         i = m_detached_inventories.begin();
 303                         i != m_detached_inventories.end(); i++){
 304                 delete i->second;
 305         }
 306
 307         // cleanup 3d model meshes on client shutdown
 308         while (m_device->getSceneManager()->getMeshCache()->getMeshCount() != 0) {
 309                 scene::IAnimatedMesh * mesh =
 310                         m_device->getSceneManager()->getMeshCache()->getMeshByIndex(0);
 311
 312                 if (mesh != NULL)
 313                         m_device->getSceneManager()->getMeshCache()->removeMesh(mesh);
 314         }
 315 }
 316
 317 void Client::connect(Address address,
 318                 const std::string &address_name,
 319                 bool is_local_server)
 320 {
 321         DSTACK(__FUNCTION_NAME);
 322
 323         initLocalMapSaving(address, address_name, is_local_server);
 324
 325         m_con.SetTimeoutMs(0);
 326         m_con.Connect(address);
 327 }
 328
 329 void Client::step(float dtime)
 330 {
 331         DSTACK(__FUNCTION_NAME);
 332
 333         // Limit a bit
 334         if(dtime > 2.0)
 335                 dtime = 2.0;
 336
 337         if(m_ignore_damage_timer > dtime)
 338                 m_ignore_damage_timer -= dtime;
 339         else
 340                 m_ignore_damage_timer = 0.0;
 341
 342         m_animation_time += dtime;
 343         if(m_animation_time > 60.0)
 344                 m_animation_time -= 60.0;
 345
 346         m_time_of_day_update_timer += dtime;
 347
 348         ReceiveAll();
 349
 350         /*
 351                 Packet counter
 352         */
 353         {
 354                 float &counter = m_packetcounter_timer;
 355                 counter -= dtime;
 356                 if(counter <= 0.0)
 357                 {
 358                         counter = 20.0;
 359
 360                         infostream << "Client packetcounter (" << m_packetcounter_timer
 361                                         << "):"<<std::endl;
 362                         m_packetcounter.print(infostream);
 363                         m_packetcounter.clear();
 364                 }
 365         }
 366
 367         // UGLY hack to fix 2 second startup delay caused by non existent
 368         // server client startup synchronization in local server or singleplayer mode
 369         static bool initial_step = true;
 370         if (initial_step) {
 371                 initial_step = false;
 372         }
 373         else if(m_state == LC_Created) {
 374                 float &counter = m_connection_reinit_timer;
 375                 counter -= dtime;
 376                 if(counter <= 0.0) {
 377                         counter = 2.0;
 378
 379                         Player *myplayer = m_env.getLocalPlayer();
 380                         FATAL_ERROR_IF(myplayer == NULL, "Local player not found in environment.");
 381
 382                         // Send TOSERVER_INIT_LEGACY
 383                         // [0] u16 TOSERVER_INIT_LEGACY
 384                         // [2] u8 SER_FMT_VER_HIGHEST_READ
 385                         // [3] u8[20] player_name
 386                         // [23] u8[28] password (new in some version)
 387                         // [51] u16 minimum supported network protocol version (added sometime)
 388                         // [53] u16 maximum supported network protocol version (added later than the previous one)
 389
 390                         char pName[PLAYERNAME_SIZE];
 391                         char pPassword[PASSWORD_SIZE];
 392                         memset(pName, 0, PLAYERNAME_SIZE * sizeof(char));
 393                         memset(pPassword, 0, PASSWORD_SIZE * sizeof(char));
 394
 395                         std::string hashed_password = translatePassword(myplayer->getName(), m_password);
 396                         snprintf(pName, PLAYERNAME_SIZE, "%s", myplayer->getName());
 397                         snprintf(pPassword, PASSWORD_SIZE, "%s", hashed_password.c_str());
 398
 399                         sendLegacyInit(pName, pPassword);
 400                         if (LATEST_PROTOCOL_VERSION >= 25)
 401                                 sendInit(myplayer->getName());
 402                 }
 403
 404                 // Not connected, return
 405                 return;
 406         }
 407
 408         /*
 409                 Do stuff if connected
 410         */
 411
 412         /*
 413                 Run Map's timers and unload unused data
 414         */
 415         const float map_timer_and_unload_dtime = 5.25;
 416         if(m_map_timer_and_unload_interval.step(dtime, map_timer_and_unload_dtime)) {
 417                 ScopeProfiler sp(g_profiler, "Client: map timer and unload");
 418                 std::vector<v3s16> deleted_blocks;
 419                 m_env.getMap().timerUpdate(map_timer_and_unload_dtime,
 420                                 g_settings->getFloat("client_unload_unused_data_timeout"),
 421                                 &deleted_blocks);
 422
 423                 /*
 424                         Send info to server
 425                         NOTE: This loop is intentionally iterated the way it is.
 426                 */
 427
 428                 std::vector<v3s16>::iterator i = deleted_blocks.begin();
 429                 std::vector<v3s16> sendlist;
 430                 for(;;) {
 431                         if(sendlist.size() == 255 || i == deleted_blocks.end()) {
 432                                 if(sendlist.empty())
 433                                         break;
 434                                 /*
 435                                         [0] u16 command
 436                                         [2] u8 count
 437                                         [3] v3s16 pos_0
 438                                         [3+6] v3s16 pos_1
 439                                         ...
 440                                 */
 441
 442                                 sendDeletedBlocks(sendlist);
 443
 444                                 if(i == deleted_blocks.end())
 445                                         break;
 446
 447                                 sendlist.clear();
 448                         }
 449
 450                         sendlist.push_back(*i);
 451                         ++i;
 452                 }
 453         }
 454
 455         /*
 456                 Handle environment
 457         */
 458         // Control local player (0ms)
 459         LocalPlayer *player = m_env.getLocalPlayer();
 460         assert(player != NULL);
 461         player->applyControl(dtime);
 462
 463         // Step environment
 464         m_env.step(dtime);
 465
 466         /*
 467                 Get events
 468         */
 469         for(;;) {
 470                 ClientEnvEvent event = m_env.getClientEvent();
 471                 if(event.type == CEE_NONE) {
 472                         break;
 473                 }
 474                 else if(event.type == CEE_PLAYER_DAMAGE) {
 475                         if(m_ignore_damage_timer <= 0) {
 476                                 u8 damage = event.player_damage.amount;
 477
 478                                 if(event.player_damage.send_to_server)
 479                                         sendDamage(damage);
 480
 481                                 // Add to ClientEvent queue
 482                                 ClientEvent event;
 483                                 event.type = CE_PLAYER_DAMAGE;
 484                                 event.player_damage.amount = damage;
 485                                 m_client_event_queue.push(event);
 486                         }
 487                 }
 488                 else if(event.type == CEE_PLAYER_BREATH) {
 489                                 u16 breath = event.player_breath.amount;
 490                                 sendBreath(breath);
 491                 }
 492         }
 493
 494         /*
 495                 Print some info
 496         */
 497         float &counter = m_avg_rtt_timer;
 498         counter += dtime;
 499         if(counter >= 10) {
 500                 counter = 0.0;
 501                 // connectedAndInitialized() is true, peer exists.
 502                 float avg_rtt = getRTT();
 503                 infostream << "Client: avg_rtt=" << avg_rtt << std::endl;
 504         }
 505
 506         /*
 507                 Send player position to server
 508         */
 509         {
 510                 float &counter = m_playerpos_send_timer;
 511                 counter += dtime;
 512                 if((m_state == LC_Ready) && (counter >= m_recommended_send_interval))
 513                 {
 514                         counter = 0.0;
 515                         sendPlayerPos();
 516                 }
 517         }
 518
 519         /*
 520                 Replace updated meshes
 521         */
 522         {
 523                 int num_processed_meshes = 0;
 524                 while (!m_mesh_update_thread.m_queue_out.empty())
 525                 {
 526                         num_processed_meshes++;
 527                         MeshUpdateResult r = m_mesh_update_thread.m_queue_out.pop_frontNoEx();
 528                         MapBlock *block = m_env.getMap().getBlockNoCreateNoEx(r.p);
 529                         MinimapMapblock *minimap_mapblock = NULL;
 530                         if (block) {
 531                                 // Delete the old mesh
 532                                 if (block->mesh != NULL)        {
 533                                         delete block->mesh;
 534                                         block->mesh = NULL;
 535                                 }
 536
 537                                 if (r.mesh)
 538                                         minimap_mapblock = r.mesh->getMinimapMapblock();
 539
 540                                 if (r.mesh && r.mesh->getMesh()->getMeshBufferCount() == 0) {
 541                                         delete r.mesh;
 542                                         block->mesh = NULL;
 543                                 } else {
 544                                         // Replace with the new mesh
 545                                         block->mesh = r.mesh;
 546                                 }
 547                         } else {
 548                                 delete r.mesh;
 549                                 minimap_mapblock = NULL;
 550                         }
 551
 552                         m_mapper->addBlock(r.p, minimap_mapblock);
 553
 554                         if (r.ack_block_to_server) {
 555                                 /*
 556                                         Acknowledge block
 557                                         [0] u8 count
 558                                         [1] v3s16 pos_0
 559                                 */
 560                                 sendGotBlocks(r.p);
 561                         }
 562                 }
 563
 564                 if (num_processed_meshes > 0)
 565                         g_profiler->graphAdd("num_processed_meshes", num_processed_meshes);
 566         }
 567
 568         /*
 569                 Load fetched media
 570         */
 571         if (m_media_downloader && m_media_downloader->isStarted()) {
 572                 m_media_downloader->step(this);
 573                 if (m_media_downloader->isDone()) {
 574                         received_media();
 575                         delete m_media_downloader;
 576                         m_media_downloader = NULL;
 577                 }
 578         }
 579
 580         /*
 581                 If the server didn't update the inventory in a while, revert
 582                 the local inventory (so the player notices the lag problem
 583                 and knows something is wrong).
 584         */
 585         if(m_inventory_from_server)
 586         {
 587                 float interval = 10.0;
 588                 float count_before = floor(m_inventory_from_server_age / interval);
 589
 590                 m_inventory_from_server_age += dtime;
 591
 592                 float count_after = floor(m_inventory_from_server_age / interval);
 593
 594                 if(count_after != count_before)
 595                 {
 596                         // Do this every <interval> seconds after TOCLIENT_INVENTORY
 597                         // Reset the locally changed inventory to the authoritative inventory
 598                         Player *player = m_env.getLocalPlayer();
 599                         player->inventory = *m_inventory_from_server;
 600                         m_inventory_updated = true;
 601                 }
 602         }
 603
 604         /*
 605                 Update positions of sounds attached to objects
 606         */
 607         {
 608                 for(std::map<int, u16>::iterator
 609                                 i = m_sounds_to_objects.begin();
 610                                 i != m_sounds_to_objects.end(); i++)
 611                 {
 612                         int client_id = i->first;
 613                         u16 object_id = i->second;
 614                         ClientActiveObject *cao = m_env.getActiveObject(object_id);
 615                         if(!cao)
 616                                 continue;
 617                         v3f pos = cao->getPosition();
 618                         m_sound->updateSoundPosition(client_id, pos);
 619                 }
 620         }
 621
 622         /*
 623                 Handle removed remotely initiated sounds
 624         */
 625         m_removed_sounds_check_timer += dtime;
 626         if(m_removed_sounds_check_timer >= 2.32) {
 627                 m_removed_sounds_check_timer = 0;
 628                 // Find removed sounds and clear references to them
 629                 std::vector<s32> removed_server_ids;
 630                 for(std::map<s32, int>::iterator
 631                                 i = m_sounds_server_to_client.begin();
 632                                 i != m_sounds_server_to_client.end();) {
 633                         s32 server_id = i->first;
 634                         int client_id = i->second;
 635                         i++;
 636                         if(!m_sound->soundExists(client_id)) {
 637                                 m_sounds_server_to_client.erase(server_id);
 638                                 m_sounds_client_to_server.erase(client_id);
 639                                 m_sounds_to_objects.erase(client_id);
 640                                 removed_server_ids.push_back(server_id);
 641                         }
 642                 }
 643
 644                 // Sync to server
 645                 if(!removed_server_ids.empty()) {
 646                         sendRemovedSounds(removed_server_ids);
 647                 }
 648         }
 649
 650         // Write server map
 651         if (m_localdb && m_localdb_save_interval.step(dtime,
 652                         m_cache_save_interval)) {
 653                 m_localdb->endSave();
 654                 m_localdb->beginSave();
 655         }
 656 }
 657
 658 bool Client::loadMedia(const std::string &data, const std::string &filename)
 659 {
 660         // Silly irrlicht's const-incorrectness
 661         Buffer<char> data_rw(data.c_str(), data.size());
 662
 663         std::string name;
 664
 665         const char *image_ext[] = {
 666                 ".png", ".jpg", ".bmp", ".tga",
 667                 ".pcx", ".ppm", ".psd", ".wal", ".rgb",
 668                 NULL
 669         };
 670         name = removeStringEnd(filename, image_ext);
 671         if(name != "")
 672         {
 673                 verbosestream<<"Client: Attempting to load image "
 674                 <<"file \""<<filename<<"\""<<std::endl;
 675
 676                 io::IFileSystem *irrfs = m_device->getFileSystem();
 677                 video::IVideoDriver *vdrv = m_device->getVideoDriver();
 678
 679                 // Create an irrlicht memory file
 680                 io::IReadFile *rfile = irrfs->createMemoryReadFile(
 681                                 *data_rw, data_rw.getSize(), "_tempreadfile");
 682
 683                 FATAL_ERROR_IF(!rfile, "Could not create irrlicht memory file.");
 684
 685                 // Read image
 686                 video::IImage *img = vdrv->createImageFromFile(rfile);
 687                 if(!img){
 688                         errorstream<<"Client: Cannot create image from data of "
 689                                         <<"file \""<<filename<<"\""<<std::endl;
 690                         rfile->drop();
 691                         return false;
 692                 }
 693                 else {
 694                         m_tsrc->insertSourceImage(filename, img);
 695                         img->drop();
 696                         rfile->drop();
 697                         return true;
 698                 }
 699         }
 700
 701         const char *sound_ext[] = {
 702                 ".0.ogg", ".1.ogg", ".2.ogg", ".3.ogg", ".4.ogg",
 703                 ".5.ogg", ".6.ogg", ".7.ogg", ".8.ogg", ".9.ogg",
 704                 ".ogg", NULL
 705         };
 706         name = removeStringEnd(filename, sound_ext);
 707         if(name != "")
 708         {
 709                 verbosestream<<"Client: Attempting to load sound "
 710                 <<"file \""<<filename<<"\""<<std::endl;
 711                 m_sound->loadSoundData(name, data);
 712                 return true;
 713         }
 714
 715         const char *model_ext[] = {
 716                 ".x", ".b3d", ".md2", ".obj",
 717                 NULL
 718         };
 719         name = removeStringEnd(filename, model_ext);
 720         if(name != "")
 721         {
 722                 verbosestream<<"Client: Storing model into memory: "
 723                                 <<"\""<<filename<<"\""<<std::endl;
 724                 if(m_mesh_data.count(filename))
 725                         errorstream<<"Multiple models with name \""<<filename.c_str()
 726                                         <<"\" found; replacing previous model"<<std::endl;
 727                 m_mesh_data[filename] = data;
 728                 return true;
 729         }
 730
 731         errorstream<<"Client: Don't know how to load file \""
 732                         <<filename<<"\""<<std::endl;
 733         return false;
 734 }
 735
 736 // Virtual methods from con::PeerHandler
 737 void Client::peerAdded(con::Peer *peer)
 738 {
 739         infostream<<"Client::peerAdded(): peer->id="
 740                         <<peer->id<<std::endl;
 741 }
 742 void Client::deletingPeer(con::Peer *peer, bool timeout)
 743 {
 744         infostream<<"Client::deletingPeer(): "
 745                         "Server Peer is getting deleted "
 746                         <<"(timeout="<<timeout<<")"<<std::endl;
 747 }
 748
 749 /*
 750         u16 command
 751         u16 number of files requested
 752         for each file {
 753                 u16 length of name
 754                 string name
 755         }
 756 */
 757 void Client::request_media(const std::vector<std::string> &file_requests)
 758 {
 759         std::ostringstream os(std::ios_base::binary);
 760         writeU16(os, TOSERVER_REQUEST_MEDIA);
 761         size_t file_requests_size = file_requests.size();
 762
 763         FATAL_ERROR_IF(file_requests_size > 0xFFFF, "Unsupported number of file requests");
 764
 765         // Packet dynamicly resized
 766         NetworkPacket pkt(TOSERVER_REQUEST_MEDIA, 2 + 0);
 767
 768         pkt << (u16) (file_requests_size & 0xFFFF);
 769
 770         for(std::vector<std::string>::const_iterator i = file_requests.begin();
 771                         i != file_requests.end(); ++i) {
 772                 pkt << (*i);
 773         }
 774
 775         Send(&pkt);
 776
 777         infostream << "Client: Sending media request list to server ("
 778                         << file_requests.size() << " files. packet size)" << std::endl;
 779 }
 780
 781 void Client::received_media()
 782 {
 783         NetworkPacket pkt(TOSERVER_RECEIVED_MEDIA, 0);
 784         Send(&pkt);
 785         infostream << "Client: Notifying server that we received all media"
 786                         << std::endl;
 787 }
 788
 789 void Client::initLocalMapSaving(const Address &address,
 790                 const std::string &hostname,
 791                 bool is_local_server)
 792 {
 793         if (!g_settings->getBool("enable_local_map_saving") || is_local_server) {
 794                 return;
 795         }
 796
 797         const std::string world_path = porting::path_user
 798                 + DIR_DELIM + "worlds"
 799                 + DIR_DELIM + "server_"
 800                 + hostname + "_" + to_string(address.getPort());
 801
 802         fs::CreateAllDirs(world_path);
 803
 804         m_localdb = new Database_SQLite3(world_path);
 805         m_localdb->beginSave();
 806         actionstream << "Local map saving started, map will be saved at '" << world_path << "'" << std::endl;
 807 }
 808
 809 void Client::ReceiveAll()
 810 {
 811         DSTACK(__FUNCTION_NAME);
 812         u32 start_ms = porting::getTimeMs();
 813         for(;;)
 814         {
 815                 // Limit time even if there would be huge amounts of data to
 816                 // process
 817                 if(porting::getTimeMs() > start_ms + 100)
 818                         break;
 819
 820                 try {
 821                         Receive();
 822                         g_profiler->graphAdd("client_received_packets", 1);
 823                 }
 824                 catch(con::NoIncomingDataException &e) {
 825                         break;
 826                 }
 827                 catch(con::InvalidIncomingDataException &e) {
 828                         infostream<<"Client::ReceiveAll(): "
 829                                         "InvalidIncomingDataException: what()="
 830                                         <<e.what()<<std::endl;
 831                 }
 832         }
 833 }
 834
 835 void Client::Receive()
 836 {
 837         DSTACK(__FUNCTION_NAME);
 838         NetworkPacket pkt;
 839         m_con.Receive(&pkt);
 840         ProcessData(&pkt);
 841 }
 842
 843 inline void Client::handleCommand(NetworkPacket* pkt)
 844 {
 845         const ToClientCommandHandler& opHandle = toClientCommandTable[pkt->getCommand()];
 846         (this->*opHandle.handler)(pkt);
 847 }
 848
 849 /*
 850         sender_peer_id given to this shall be quaranteed to be a valid peer
 851 */
 852 void Client::ProcessData(NetworkPacket *pkt)
 853 {
 854         DSTACK(__FUNCTION_NAME);
 855
 856         ToClientCommand command = (ToClientCommand) pkt->getCommand();
 857         u32 sender_peer_id = pkt->getPeerId();
 858
 859         //infostream<<"Client: received command="<<command<<std::endl;
 860         m_packetcounter.add((u16)command);
 861
 862         /*
 863                 If this check is removed, be sure to change the queue
 864                 system to know the ids
 865         */
 866         if(sender_peer_id != PEER_ID_SERVER) {
 867                 infostream << "Client::ProcessData(): Discarding data not "
 868                         "coming from server: peer_id=" << sender_peer_id
 869                         << std::endl;
 870                 return;
 871         }
 872
 873         // Command must be handled into ToClientCommandHandler
 874         if (command >= TOCLIENT_NUM_MSG_TYPES) {
 875                 infostream << "Client: Ignoring unknown command "
 876                         << command << std::endl;
 877                 return;
 878         }
 879
 880         /*
 881          * Those packets are handled before m_server_ser_ver is set, it's normal
 882          * But we must use the new ToClientConnectionState in the future,
 883          * as a byte mask
 884          */
 885         if(toClientCommandTable[command].state == TOCLIENT_STATE_NOT_CONNECTED) {
 886                 handleCommand(pkt);
 887                 return;
 888         }
 889
 890         if(m_server_ser_ver == SER_FMT_VER_INVALID) {
 891                 infostream << "Client: Server serialization"
 892                                 " format invalid or not initialized."
 893                                 " Skipping incoming command=" << command << std::endl;
 894                 return;
 895         }
 896
 897         /*
 898           Handle runtime commands
 899         */
 900
 901         handleCommand(pkt);
 902 }
 903
 904 void Client::Send(NetworkPacket* pkt)
 905 {
 906         m_con.Send(PEER_ID_SERVER,
 907                 serverCommandFactoryTable[pkt->getCommand()].channel,
 908                 pkt,
 909                 serverCommandFactoryTable[pkt->getCommand()].reliable);
 910 }
 911
 912 void Client::interact(u8 action, const PointedThing& pointed)
 913 {
 914         if(m_state != LC_Ready) {
 915                 errorstream << "Client::interact() "
 916                                 "Canceled (not connected)"
 917                                 << std::endl;
 918                 return;
 919         }
 920
 921         /*
 922                 [0] u16 command
 923                 [2] u8 action
 924                 [3] u16 item
 925                 [5] u32 length of the next item
 926                 [9] serialized PointedThing
 927                 actions:
 928                 0: start digging (from undersurface) or use
 929                 1: stop digging (all parameters ignored)
 930                 2: digging completed
 931                 3: place block or item (to abovesurface)
 932                 4: use item
 933         */
 934
 935         NetworkPacket pkt(TOSERVER_INTERACT, 1 + 2 + 0);
 936
 937         pkt << action;
 938         pkt << (u16)getPlayerItem();
 939
 940         std::ostringstream tmp_os(std::ios::binary);
 941         pointed.serialize(tmp_os);
 942
 943         pkt.putLongString(tmp_os.str());
 944
 945         Send(&pkt);
 946 }
 947
 948 void Client::deleteAuthData()
 949 {
 950         if (!m_auth_data)
 951                 return;
 952
 953         switch (m_chosen_auth_mech) {
 954                 case AUTH_MECHANISM_FIRST_SRP:
 955                         break;
 956                 case AUTH_MECHANISM_SRP:
 957                 case AUTH_MECHANISM_LEGACY_PASSWORD:
 958                         srp_user_delete((SRPUser *) m_auth_data);
 959                         m_auth_data = NULL;
 960                         break;
 961                 case AUTH_MECHANISM_NONE:
 962                         break;
 963         }
 964 }
 965
 966
 967 AuthMechanism Client::choseAuthMech(const u32 mechs)
 968 {
 969         if (mechs & AUTH_MECHANISM_SRP)
 970                 return AUTH_MECHANISM_SRP;
 971
 972         if (mechs & AUTH_MECHANISM_FIRST_SRP)
 973                 return AUTH_MECHANISM_FIRST_SRP;
 974
 975         if (mechs & AUTH_MECHANISM_LEGACY_PASSWORD)
 976                 return AUTH_MECHANISM_LEGACY_PASSWORD;
 977
 978         return AUTH_MECHANISM_NONE;
 979 }
 980
 981 void Client::sendLegacyInit(const char* playerName, const char* playerPassword)
 982 {
 983         NetworkPacket pkt(TOSERVER_INIT_LEGACY,
 984                         1 + PLAYERNAME_SIZE + PASSWORD_SIZE + 2 + 2);
 985
 986         pkt << (u8) SER_FMT_VER_HIGHEST_READ;
 987         pkt.putRawString(playerName,PLAYERNAME_SIZE);
 988         pkt.putRawString(playerPassword, PASSWORD_SIZE);
 989         pkt << (u16) CLIENT_PROTOCOL_VERSION_MIN << (u16) CLIENT_PROTOCOL_VERSION_MAX;
 990
 991         Send(&pkt);
 992 }
 993
 994 void Client::sendInit(const std::string &playerName)
 995 {
 996         NetworkPacket pkt(TOSERVER_INIT, 1 + 2 + 2 + (1 + playerName.size()));
 997
 998         // we don't support network compression yet
 999         u16 supp_comp_modes = NETPROTO_COMPRESSION_NONE;
1000         pkt << (u8) SER_FMT_VER_HIGHEST_READ << (u16) supp_comp_modes;
1001         pkt << (u16) CLIENT_PROTOCOL_VERSION_MIN << (u16) CLIENT_PROTOCOL_VERSION_MAX;
1002         pkt << playerName;
1003
1004         Send(&pkt);
1005 }
1006
1007 void Client::startAuth(AuthMechanism chosen_auth_mechanism)
1008 {
1009         m_chosen_auth_mech = chosen_auth_mechanism;
1010
1011         switch (chosen_auth_mechanism) {
1012                 case AUTH_MECHANISM_FIRST_SRP: {
1013                         // send srp verifier to server
1014                         NetworkPacket resp_pkt(TOSERVER_FIRST_SRP, 0);
1015                         char *salt, *bytes_v;
1016                         std::size_t len_salt, len_v;
1017                         salt = NULL;
1018                         getSRPVerifier(getPlayerName(), m_password,
1019                                 &salt, &len_salt, &bytes_v, &len_v);
1020                         resp_pkt
1021                                 << std::string((char*)salt, len_salt)
1022                                 << std::string((char*)bytes_v, len_v)
1023                                 << (u8)((m_password == "") ? 1 : 0);
1024                         free(salt);
1025                         free(bytes_v);
1026                         Send(&resp_pkt);
1027                         break;
1028                 }
1029                 case AUTH_MECHANISM_SRP:
1030                 case AUTH_MECHANISM_LEGACY_PASSWORD: {
1031                         u8 based_on = 1;
1032
1033                         if (chosen_auth_mechanism == AUTH_MECHANISM_LEGACY_PASSWORD) {
1034                                 m_password = translatePassword(getPlayerName(), m_password);
1035                                 based_on = 0;
1036                         }
1037
1038                         std::string playername_u = lowercase(getPlayerName());
1039                         m_auth_data = srp_user_new(SRP_SHA256, SRP_NG_2048,
1040                                 getPlayerName().c_str(), playername_u.c_str(),
1041                                 (const unsigned char *) m_password.c_str(),
1042                                 m_password.length(), NULL, NULL);
1043                         char *bytes_A = 0;
1044                         size_t len_A = 0;
1045                         srp_user_start_authentication((struct SRPUser *) m_auth_data,
1046                                 NULL, NULL, 0, (unsigned char **) &bytes_A, &len_A);
1047
1048                         NetworkPacket resp_pkt(TOSERVER_SRP_BYTES_A, 0);
1049                         resp_pkt << std::string(bytes_A, len_A) << based_on;
1050                         free(bytes_A);
1051                         Send(&resp_pkt);
1052                         break;
1053                 }
1054                 case AUTH_MECHANISM_NONE:
1055                         break; // not handled in this method
1056         }
1057 }
1058
1059 void Client::sendDeletedBlocks(std::vector<v3s16> &blocks)
1060 {
1061         NetworkPacket pkt(TOSERVER_DELETEDBLOCKS, 1 + sizeof(v3s16) * blocks.size());
1062
1063         pkt << (u8) blocks.size();
1064
1065         u32 k = 0;
1066         for(std::vector<v3s16>::iterator
1067                         j = blocks.begin();
1068                         j != blocks.end(); ++j) {
1069                 pkt << *j;
1070                 k++;
1071         }
1072
1073         Send(&pkt);
1074 }
1075
1076 void Client::sendGotBlocks(v3s16 block)
1077 {
1078         NetworkPacket pkt(TOSERVER_GOTBLOCKS, 1 + 6);
1079         pkt << (u8) 1 << block;
1080         Send(&pkt);
1081 }
1082
1083 void Client::sendRemovedSounds(std::vector<s32> &soundList)
1084 {
1085         size_t server_ids = soundList.size();
1086         assert(server_ids <= 0xFFFF);
1087
1088         NetworkPacket pkt(TOSERVER_REMOVED_SOUNDS, 2 + server_ids * 4);
1089
1090         pkt << (u16) (server_ids & 0xFFFF);
1091
1092         for(std::vector<s32>::iterator i = soundList.begin();
1093                         i != soundList.end(); i++)
1094                 pkt << *i;
1095
1096         Send(&pkt);
1097 }
1098
1099 void Client::sendNodemetaFields(v3s16 p, const std::string &formname,
1100                 const StringMap &fields)
1101 {
1102         size_t fields_size = fields.size();
1103
1104         FATAL_ERROR_IF(fields_size > 0xFFFF, "Unsupported number of nodemeta fields");
1105
1106         NetworkPacket pkt(TOSERVER_NODEMETA_FIELDS, 0);
1107
1108         pkt << p << formname << (u16) (fields_size & 0xFFFF);
1109
1110         StringMap::const_iterator it;
1111         for (it = fields.begin(); it != fields.end(); ++it) {
1112                 const std::string &name = it->first;
1113                 const std::string &value = it->second;
1114                 pkt << name;
1115                 pkt.putLongString(value);
1116         }
1117
1118         Send(&pkt);
1119 }
1120
1121 void Client::sendInventoryFields(const std::string &formname,
1122                 const StringMap &fields)
1123 {
1124         size_t fields_size = fields.size();
1125         FATAL_ERROR_IF(fields_size > 0xFFFF, "Unsupported number of inventory fields");
1126
1127         NetworkPacket pkt(TOSERVER_INVENTORY_FIELDS, 0);
1128         pkt << formname << (u16) (fields_size & 0xFFFF);
1129
1130         StringMap::const_iterator it;
1131         for (it = fields.begin(); it != fields.end(); ++it) {
1132                 const std::string &name  = it->first;
1133                 const std::string &value = it->second;
1134                 pkt << name;
1135                 pkt.putLongString(value);
1136         }
1137
1138         Send(&pkt);
1139 }
1140
1141 void Client::sendInventoryAction(InventoryAction *a)
1142 {
1143         std::ostringstream os(std::ios_base::binary);
1144
1145         a->serialize(os);
1146
1147         // Make data buffer
1148         std::string s = os.str();
1149
1150         NetworkPacket pkt(TOSERVER_INVENTORY_ACTION, s.size());
1151         pkt.putRawString(s.c_str(),s.size());
1152
1153         Send(&pkt);
1154 }
1155
1156 void Client::sendChatMessage(const std::wstring &message)
1157 {
1158         NetworkPacket pkt(TOSERVER_CHAT_MESSAGE, 2 + message.size() * sizeof(u16));
1159
1160         pkt << message;
1161
1162         Send(&pkt);
1163 }
1164
1165 void Client::sendChangePassword(const std::string &oldpassword,
1166         const std::string &newpassword)
1167 {
1168         Player *player = m_env.getLocalPlayer();
1169         if (player == NULL)
1170                 return;
1171
1172         std::string playername = player->getName();
1173         if (m_proto_ver >= 25) {
1174                 // get into sudo mode and then send new password to server
1175                 m_password = oldpassword;
1176                 m_new_password = newpassword;
1177                 startAuth(choseAuthMech(m_sudo_auth_methods));
1178         } else {
1179                 std::string oldpwd = translatePassword(playername, oldpassword);
1180                 std::string newpwd = translatePassword(playername, newpassword);
1181
1182                 NetworkPacket pkt(TOSERVER_PASSWORD_LEGACY, 2 * PASSWORD_SIZE);
1183
1184                 for (u8 i = 0; i < PASSWORD_SIZE; i++) {
1185                         pkt << (u8) (i < oldpwd.length() ? oldpwd[i] : 0);
1186                 }
1187
1188                 for (u8 i = 0; i < PASSWORD_SIZE; i++) {
1189                         pkt << (u8) (i < newpwd.length() ? newpwd[i] : 0);
1190                 }
1191                 Send(&pkt);
1192         }
1193 }
1194
1195
1196 void Client::sendDamage(u8 damage)
1197 {
1198         DSTACK(__FUNCTION_NAME);
1199
1200         NetworkPacket pkt(TOSERVER_DAMAGE, sizeof(u8));
1201         pkt << damage;
1202         Send(&pkt);
1203 }
1204
1205 void Client::sendBreath(u16 breath)
1206 {
1207         DSTACK(__FUNCTION_NAME);
1208
1209         NetworkPacket pkt(TOSERVER_BREATH, sizeof(u16));
1210         pkt << breath;
1211         Send(&pkt);
1212 }
1213
1214 void Client::sendRespawn()
1215 {
1216         DSTACK(__FUNCTION_NAME);
1217
1218         NetworkPacket pkt(TOSERVER_RESPAWN, 0);
1219         Send(&pkt);
1220 }
1221
1222 void Client::sendReady()
1223 {
1224         DSTACK(__FUNCTION_NAME);
1225
1226         NetworkPacket pkt(TOSERVER_CLIENT_READY,
1227                         1 + 1 + 1 + 1 + 2 + sizeof(char) * strlen(g_version_hash));
1228
1229         pkt << (u8) VERSION_MAJOR << (u8) VERSION_MINOR << (u8) VERSION_PATCH
1230                 << (u8) 0 << (u16) strlen(g_version_hash);
1231
1232         pkt.putRawString(g_version_hash, (u16) strlen(g_version_hash));
1233         Send(&pkt);
1234 }
1235
1236 void Client::sendPlayerPos()
1237 {
1238         LocalPlayer *myplayer = m_env.getLocalPlayer();
1239         if(myplayer == NULL)
1240                 return;
1241
1242         // Save bandwidth by only updating position when something changed
1243         if(myplayer->last_position        == myplayer->getPosition() &&
1244                         myplayer->last_speed      == myplayer->getSpeed()    &&
1245                         myplayer->last_pitch      == myplayer->getPitch()    &&
1246                         myplayer->last_yaw        == myplayer->getYaw()      &&
1247                         myplayer->last_keyPressed == myplayer->keyPressed)
1248                 return;
1249
1250         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;
1255
1256         u16 our_peer_id;
1257         {
1258                 //JMutexAutoLock lock(m_con_mutex); //bulk comment-out
1259                 our_peer_id = m_con.GetPeerID();
1260         }
1261
1262         // Set peer id if not set already
1263         if(myplayer->peer_id == PEER_ID_INEXISTENT)
1264                 myplayer->peer_id = our_peer_id;
1265
1266         assert(myplayer->peer_id == our_peer_id);
1267
1268         v3f pf         = myplayer->getPosition();
1269         v3f sf         = myplayer->getSpeed();
1270         s32 pitch      = myplayer->getPitch() * 100;
1271         s32 yaw        = myplayer->getYaw() * 100;
1272         u32 keyPressed = myplayer->keyPressed;
1273
1274         v3s32 position(pf.X*100, pf.Y*100, pf.Z*100);
1275         v3s32 speed(sf.X*100, sf.Y*100, sf.Z*100);
1276         /*
1277                 Format:
1278                 [0] v3s32 position*100
1279                 [12] v3s32 speed*100
1280                 [12+12] s32 pitch*100
1281                 [12+12+4] s32 yaw*100
1282                 [12+12+4+4] u32 keyPressed
1283         */
1284
1285         NetworkPacket pkt(TOSERVER_PLAYERPOS, 12 + 12 + 4 + 4 + 4);
1286
1287         pkt << position << speed << pitch << yaw << keyPressed;
1288
1289         Send(&pkt);
1290 }
1291
1292 void Client::sendPlayerItem(u16 item)
1293 {
1294         Player *myplayer = m_env.getLocalPlayer();
1295         if(myplayer == NULL)
1296                 return;
1297
1298         u16 our_peer_id = m_con.GetPeerID();
1299
1300         // Set peer id if not set already
1301         if(myplayer->peer_id == PEER_ID_INEXISTENT)
1302                 myplayer->peer_id = our_peer_id;
1303         assert(myplayer->peer_id == our_peer_id);
1304
1305         NetworkPacket pkt(TOSERVER_PLAYERITEM, 2);
1306
1307         pkt << item;
1308
1309         Send(&pkt);
1310 }
1311
1312 void Client::removeNode(v3s16 p)
1313 {
1314         std::map<v3s16, MapBlock*> modified_blocks;
1315
1316         try {
1317                 m_env.getMap().removeNodeAndUpdate(p, modified_blocks);
1318         }
1319         catch(InvalidPositionException &e) {
1320         }
1321
1322         for(std::map<v3s16, MapBlock *>::iterator
1323                         i = modified_blocks.begin();
1324                         i != modified_blocks.end(); ++i) {
1325                 addUpdateMeshTaskWithEdge(i->first, false, true);
1326         }
1327 }
1328
1329 void Client::addNode(v3s16 p, MapNode n, bool remove_metadata)
1330 {
1331         //TimeTaker timer1("Client::addNode()");
1332
1333         std::map<v3s16, MapBlock*> modified_blocks;
1334
1335         try {
1336                 //TimeTaker timer3("Client::addNode(): addNodeAndUpdate");
1337                 m_env.getMap().addNodeAndUpdate(p, n, modified_blocks, remove_metadata);
1338         }
1339         catch(InvalidPositionException &e) {
1340         }
1341
1342         for(std::map<v3s16, MapBlock *>::iterator
1343                         i = modified_blocks.begin();
1344                         i != modified_blocks.end(); ++i) {
1345                 addUpdateMeshTaskWithEdge(i->first, false, true);
1346         }
1347 }
1348
1349 void Client::setPlayerControl(PlayerControl &control)
1350 {
1351         LocalPlayer *player = m_env.getLocalPlayer();
1352         assert(player != NULL);
1353         player->control = control;
1354 }
1355
1356 void Client::selectPlayerItem(u16 item)
1357 {
1358         m_playeritem = item;
1359         m_inventory_updated = true;
1360         sendPlayerItem(item);
1361 }
1362
1363 // Returns true if the inventory of the local player has been
1364 // updated from the server. If it is true, it is set to false.
1365 bool Client::getLocalInventoryUpdated()
1366 {
1367         bool updated = m_inventory_updated;
1368         m_inventory_updated = false;
1369         return updated;
1370 }
1371
1372 // Copies the inventory of the local player to parameter
1373 void Client::getLocalInventory(Inventory &dst)
1374 {
1375         Player *player = m_env.getLocalPlayer();
1376         assert(player != NULL);
1377         dst = player->inventory;
1378 }
1379
1380 Inventory* Client::getInventory(const InventoryLocation &loc)
1381 {
1382         switch(loc.type){
1383         case InventoryLocation::UNDEFINED:
1384         {}
1385         break;
1386         case InventoryLocation::CURRENT_PLAYER:
1387         {
1388                 Player *player = m_env.getLocalPlayer();
1389                 assert(player != NULL);
1390                 return &player->inventory;
1391         }
1392         break;
1393         case InventoryLocation::PLAYER:
1394         {
1395                 Player *player = m_env.getPlayer(loc.name.c_str());
1396                 if(!player)
1397                         return NULL;
1398                 return &player->inventory;
1399         }
1400         break;
1401         case InventoryLocation::NODEMETA:
1402         {
1403                 NodeMetadata *meta = m_env.getMap().getNodeMetadata(loc.p);
1404                 if(!meta)
1405                         return NULL;
1406                 return meta->getInventory();
1407         }
1408         break;
1409         case InventoryLocation::DETACHED:
1410         {
1411                 if(m_detached_inventories.count(loc.name) == 0)
1412                         return NULL;
1413                 return m_detached_inventories[loc.name];
1414         }
1415         break;
1416         default:
1417                 FATAL_ERROR("Invalid inventory location type.");
1418                 break;
1419         }
1420         return NULL;
1421 }
1422
1423 void Client::inventoryAction(InventoryAction *a)
1424 {
1425         /*
1426                 Send it to the server
1427         */
1428         sendInventoryAction(a);
1429
1430         /*
1431                 Predict some local inventory changes
1432         */
1433         a->clientApply(this, this);
1434
1435         // Remove it
1436         delete a;
1437 }
1438
1439 ClientActiveObject * Client::getSelectedActiveObject(
1440                 f32 max_d,
1441                 v3f from_pos_f_on_map,
1442                 core::line3d<f32> shootline_on_map
1443         )
1444 {
1445         std::vector<DistanceSortedActiveObject> objects;
1446
1447         m_env.getActiveObjects(from_pos_f_on_map, max_d, objects);
1448
1449         // Sort them.
1450         // After this, the closest object is the first in the array.
1451         std::sort(objects.begin(), objects.end());
1452
1453         for(unsigned int i=0; i<objects.size(); i++)
1454         {
1455                 ClientActiveObject *obj = objects[i].obj;
1456
1457                 core::aabbox3d<f32> *selection_box = obj->getSelectionBox();
1458                 if(selection_box == NULL)
1459                         continue;
1460
1461                 v3f pos = obj->getPosition();
1462
1463                 core::aabbox3d<f32> offsetted_box(
1464                                 selection_box->MinEdge + pos,
1465                                 selection_box->MaxEdge + pos
1466                 );
1467
1468                 if(offsetted_box.intersectsWithLine(shootline_on_map))
1469                 {
1470                         return obj;
1471                 }
1472         }
1473
1474         return NULL;
1475 }
1476
1477 std::list<std::string> Client::getConnectedPlayerNames()
1478 {
1479         return m_env.getPlayerNames();
1480 }
1481
1482 float Client::getAnimationTime()
1483 {
1484         return m_animation_time;
1485 }
1486
1487 int Client::getCrackLevel()
1488 {
1489         return m_crack_level;
1490 }
1491
1492 void Client::setHighlighted(v3s16 pos, bool show_highlighted)
1493 {
1494         m_show_highlighted = show_highlighted;
1495         v3s16 old_highlighted_pos = m_highlighted_pos;
1496         m_highlighted_pos = pos;
1497         addUpdateMeshTaskForNode(old_highlighted_pos, false, true);
1498         addUpdateMeshTaskForNode(m_highlighted_pos, false, true);
1499 }
1500
1501 void Client::setCrack(int level, v3s16 pos)
1502 {
1503         int old_crack_level = m_crack_level;
1504         v3s16 old_crack_pos = m_crack_pos;
1505
1506         m_crack_level = level;
1507         m_crack_pos = pos;
1508
1509         if(old_crack_level >= 0 && (level < 0 || pos != old_crack_pos))
1510         {
1511                 // remove old crack
1512                 addUpdateMeshTaskForNode(old_crack_pos, false, true);
1513         }
1514         if(level >= 0 && (old_crack_level < 0 || pos != old_crack_pos))
1515         {
1516                 // add new crack
1517                 addUpdateMeshTaskForNode(pos, false, true);
1518         }
1519 }
1520
1521 u16 Client::getHP()
1522 {
1523         Player *player = m_env.getLocalPlayer();
1524         assert(player != NULL);
1525         return player->hp;
1526 }
1527
1528 u16 Client::getBreath()
1529 {
1530         Player *player = m_env.getLocalPlayer();
1531         assert(player != NULL);
1532         return player->getBreath();
1533 }
1534
1535 bool Client::getChatMessage(std::wstring &message)
1536 {
1537         if(m_chat_queue.size() == 0)
1538                 return false;
1539         message = m_chat_queue.front();
1540         m_chat_queue.pop();
1541         return true;
1542 }
1543
1544 void Client::typeChatMessage(const std::wstring &message)
1545 {
1546         // Discard empty line
1547         if(message == L"")
1548                 return;
1549
1550         // Send to others
1551         sendChatMessage(message);
1552
1553         // Show locally
1554         if (message[0] == L'/')
1555         {
1556                 m_chat_queue.push((std::wstring)L"issued command: " + message);
1557         }
1558         else
1559         {
1560                 LocalPlayer *player = m_env.getLocalPlayer();
1561                 assert(player != NULL);
1562                 std::wstring name = narrow_to_wide(player->getName());
1563                 m_chat_queue.push((std::wstring)L"<" + name + L"> " + message);
1564         }
1565 }
1566
1567 void Client::addUpdateMeshTask(v3s16 p, bool ack_to_server, bool urgent)
1568 {
1569         MapBlock *b = m_env.getMap().getBlockNoCreateNoEx(p);
1570         if(b == NULL)
1571                 return;
1572
1573         /*
1574                 Create a task to update the mesh of the block
1575         */
1576
1577         MeshMakeData *data = new MeshMakeData(this, m_cache_enable_shaders);
1578
1579         {
1580                 //TimeTaker timer("data fill");
1581                 // Release: ~0ms
1582                 // Debug: 1-6ms, avg=2ms
1583                 data->fill(b);
1584                 data->setCrack(m_crack_level, m_crack_pos);
1585                 data->setHighlighted(m_highlighted_pos, m_show_highlighted);
1586                 data->setSmoothLighting(m_cache_smooth_lighting);
1587         }
1588
1589         // Add task to queue
1590         m_mesh_update_thread.enqueueUpdate(p, data, ack_to_server, urgent);
1591 }
1592
1593 void Client::addUpdateMeshTaskWithEdge(v3s16 blockpos, bool ack_to_server, bool urgent)
1594 {
1595         try{
1596                 addUpdateMeshTask(blockpos, ack_to_server, urgent);
1597         }
1598         catch(InvalidPositionException &e){}
1599
1600         // Leading edge
1601         for (int i=0;i<6;i++)
1602         {
1603                 try{
1604                         v3s16 p = blockpos + g_6dirs[i];
1605                         addUpdateMeshTask(p, false, urgent);
1606                 }
1607                 catch(InvalidPositionException &e){}
1608         }
1609 }
1610
1611 void Client::addUpdateMeshTaskForNode(v3s16 nodepos, bool ack_to_server, bool urgent)
1612 {
1613         {
1614                 v3s16 p = nodepos;
1615                 infostream<<"Client::addUpdateMeshTaskForNode(): "
1616                                 <<"("<<p.X<<","<<p.Y<<","<<p.Z<<")"
1617                                 <<std::endl;
1618         }
1619
1620         v3s16 blockpos          = getNodeBlockPos(nodepos);
1621         v3s16 blockpos_relative = blockpos * MAP_BLOCKSIZE;
1622
1623         try{
1624                 addUpdateMeshTask(blockpos, ack_to_server, urgent);
1625         }
1626         catch(InvalidPositionException &e) {}
1627
1628         // Leading edge
1629         if(nodepos.X == blockpos_relative.X){
1630                 try{
1631                         v3s16 p = blockpos + v3s16(-1,0,0);
1632                         addUpdateMeshTask(p, false, urgent);
1633                 }
1634                 catch(InvalidPositionException &e){}
1635         }
1636
1637         if(nodepos.Y == blockpos_relative.Y){
1638                 try{
1639                         v3s16 p = blockpos + v3s16(0,-1,0);
1640                         addUpdateMeshTask(p, false, urgent);
1641                 }
1642                 catch(InvalidPositionException &e){}
1643         }
1644
1645         if(nodepos.Z == blockpos_relative.Z){
1646                 try{
1647                         v3s16 p = blockpos + v3s16(0,0,-1);
1648                         addUpdateMeshTask(p, false, urgent);
1649                 }
1650                 catch(InvalidPositionException &e){}
1651         }
1652 }
1653
1654 ClientEvent Client::getClientEvent()
1655 {
1656         ClientEvent event;
1657         if(m_client_event_queue.size() == 0) {
1658                 event.type = CE_NONE;
1659         }
1660         else {
1661                 event = m_client_event_queue.front();
1662                 m_client_event_queue.pop();
1663         }
1664         return event;
1665 }
1666
1667 float Client::mediaReceiveProgress()
1668 {
1669         if (m_media_downloader)
1670                 return m_media_downloader->getProgress();
1671         else
1672                 return 1.0; // downloader only exists when not yet done
1673 }
1674
1675 typedef struct TextureUpdateArgs {
1676         IrrlichtDevice *device;
1677         gui::IGUIEnvironment *guienv;
1678         u32 last_time_ms;
1679         u16 last_percent;
1680         const wchar_t* text_base;
1681 } TextureUpdateArgs;
1682
1683 void texture_update_progress(void *args, u32 progress, u32 max_progress)
1684 {
1685                 TextureUpdateArgs* targs = (TextureUpdateArgs*) args;
1686                 u16 cur_percent = ceil(progress / (double) max_progress * 100.);
1687
1688                 // update the loading menu -- if neccessary
1689                 bool do_draw = false;
1690                 u32 time_ms = targs->last_time_ms;
1691                 if (cur_percent != targs->last_percent) {
1692                         targs->last_percent = cur_percent;
1693                         time_ms = getTimeMs();
1694                         // only draw when the user will notice something:
1695                         do_draw = (time_ms - targs->last_time_ms > 100);
1696                 }
1697
1698                 if (do_draw) {
1699                         targs->last_time_ms = time_ms;
1700                         std::basic_stringstream<wchar_t> strm;
1701                         strm << targs->text_base << " " << targs->last_percent << "%...";
1702                         draw_load_screen(strm.str(), targs->device, targs->guienv, 0,
1703                                 72 + (u16) ((18. / 100.) * (double) targs->last_percent));
1704                 }
1705 }
1706
1707 void Client::afterContentReceived(IrrlichtDevice *device)
1708 {
1709         infostream<<"Client::afterContentReceived() started"<<std::endl;
1710         assert(m_itemdef_received); // pre-condition
1711         assert(m_nodedef_received); // pre-condition
1712         assert(mediaReceived()); // pre-condition
1713
1714         const wchar_t* text = wgettext("Loading textures...");
1715
1716         // Clear cached pre-scaled 2D GUI images, as this cache
1717         // might have images with the same name but different
1718         // content from previous sessions.
1719         guiScalingCacheClear(device->getVideoDriver());
1720
1721         // Rebuild inherited images and recreate textures
1722         infostream<<"- Rebuilding images and textures"<<std::endl;
1723         draw_load_screen(text,device, guienv, 0, 70);
1724         m_tsrc->rebuildImagesAndTextures();
1725         delete[] text;
1726
1727         // Rebuild shaders
1728         infostream<<"- Rebuilding shaders"<<std::endl;
1729         text = wgettext("Rebuilding shaders...");
1730         draw_load_screen(text, device, guienv, 0, 71);
1731         m_shsrc->rebuildShaders();
1732         delete[] text;
1733
1734         // Update node aliases
1735         infostream<<"- Updating node aliases"<<std::endl;
1736         text = wgettext("Initializing nodes...");
1737         draw_load_screen(text, device, guienv, 0, 72);
1738         m_nodedef->updateAliases(m_itemdef);
1739         std::string texture_path = g_settings->get("texture_path");
1740         if (texture_path != "" && fs::IsDir(texture_path))
1741                 m_nodedef->applyTextureOverrides(texture_path + DIR_DELIM + "override.txt");
1742         m_nodedef->setNodeRegistrationStatus(true);
1743         m_nodedef->runNodeResolveCallbacks();
1744         delete[] text;
1745
1746         // Update node textures and assign shaders to each tile
1747         infostream<<"- Updating node textures"<<std::endl;
1748         TextureUpdateArgs tu_args;
1749         tu_args.device = device;
1750         tu_args.guienv = guienv;
1751         tu_args.last_time_ms = getTimeMs();
1752         tu_args.last_percent = 0;
1753         tu_args.text_base =  wgettext("Initializing nodes");
1754         m_nodedef->updateTextures(this, texture_update_progress, &tu_args);
1755         delete[] tu_args.text_base;
1756
1757         // Preload item textures and meshes if configured to
1758         if(g_settings->getBool("preload_item_visuals"))
1759         {
1760                 verbosestream<<"Updating item textures and meshes"<<std::endl;
1761                 text = wgettext("Item textures...");
1762                 draw_load_screen(text, device, guienv, 0, 0);
1763                 std::set<std::string> names = m_itemdef->getAll();
1764                 size_t size = names.size();
1765                 size_t count = 0;
1766                 int percent = 0;
1767                 for(std::set<std::string>::const_iterator
1768                                 i = names.begin(); i != names.end(); ++i)
1769                 {
1770                         // Asking for these caches the result
1771                         m_itemdef->getInventoryTexture(*i, this);
1772                         m_itemdef->getWieldMesh(*i, this);
1773                         count++;
1774                         percent = (count * 100 / size * 0.2) + 80;
1775                         draw_load_screen(text, device, guienv, 0, percent);
1776                 }
1777                 delete[] text;
1778         }
1779
1780         // Start mesh update thread after setting up content definitions
1781         infostream<<"- Starting mesh update thread"<<std::endl;
1782         m_mesh_update_thread.Start();
1783
1784         m_state = LC_Ready;
1785         sendReady();
1786         text = wgettext("Done!");
1787         draw_load_screen(text, device, guienv, 0, 100);
1788         infostream<<"Client::afterContentReceived() done"<<std::endl;
1789         delete[] text;
1790 }
1791
1792 float Client::getRTT(void)
1793 {
1794         return m_con.getPeerStat(PEER_ID_SERVER,con::AVG_RTT);
1795 }
1796
1797 float Client::getCurRate(void)
1798 {
1799         return ( m_con.getLocalStat(con::CUR_INC_RATE) +
1800                         m_con.getLocalStat(con::CUR_DL_RATE));
1801 }
1802
1803 float Client::getAvgRate(void)
1804 {
1805         return ( m_con.getLocalStat(con::AVG_INC_RATE) +
1806                         m_con.getLocalStat(con::AVG_DL_RATE));
1807 }
1808
1809 void Client::makeScreenshot(IrrlichtDevice *device)
1810 {
1811         irr::video::IVideoDriver *driver = device->getVideoDriver();
1812         irr::video::IImage* const raw_image = driver->createScreenShot();
1813
1814         if (!raw_image)
1815                 return;
1816
1817         time_t t = time(NULL);
1818         struct tm *tm = localtime(&t);
1819
1820         char timetstamp_c[64];
1821         strftime(timetstamp_c, sizeof(timetstamp_c), "%Y%m%d_%H%M%S", tm);
1822
1823         std::string filename_base = g_settings->get("screenshot_path")
1824                         + DIR_DELIM
1825                         + std::string("screenshot_")
1826                         + std::string(timetstamp_c);
1827         std::string filename_ext = ".png";
1828         std::string filename;
1829
1830         // Try to find a unique filename
1831         unsigned serial = 0;
1832
1833         while (serial < SCREENSHOT_MAX_SERIAL_TRIES) {
1834                 filename = filename_base + (serial > 0 ? ("_" + itos(serial)) : "") + filename_ext;
1835                 std::ifstream tmp(filename.c_str());
1836                 if (!tmp.good())
1837                         break;  // File did not apparently exist, we'll go with it
1838                 serial++;
1839         }
1840
1841         if (serial == SCREENSHOT_MAX_SERIAL_TRIES) {
1842                 infostream << "Could not find suitable filename for screenshot" << std::endl;
1843         } else {
1844                 irr::video::IImage* const image =
1845                                 driver->createImage(video::ECF_R8G8B8, raw_image->getDimension());
1846
1847                 if (image) {
1848                         raw_image->copyTo(image);
1849
1850                         std::ostringstream sstr;
1851                         if (driver->writeImageToFile(image, filename.c_str())) {
1852                                 sstr << "Saved screenshot to '" << filename << "'";
1853                         } else {
1854                                 sstr << "Failed to save screenshot '" << filename << "'";
1855                         }
1856                         m_chat_queue.push(narrow_to_wide(sstr.str()));
1857                         infostream << sstr.str() << std::endl;
1858                         image->drop();
1859                 }
1860         }
1861
1862         raw_image->drop();
1863 }
1864
1865 // IGameDef interface
1866 // Under envlock
1867 IItemDefManager* Client::getItemDefManager()
1868 {
1869         return m_itemdef;
1870 }
1871 INodeDefManager* Client::getNodeDefManager()
1872 {
1873         return m_nodedef;
1874 }
1875 ICraftDefManager* Client::getCraftDefManager()
1876 {
1877         return NULL;
1878         //return m_craftdef;
1879 }
1880 ITextureSource* Client::getTextureSource()
1881 {
1882         return m_tsrc;
1883 }
1884 IShaderSource* Client::getShaderSource()
1885 {
1886         return m_shsrc;
1887 }
1888 scene::ISceneManager* Client::getSceneManager()
1889 {
1890         return m_device->getSceneManager();
1891 }
1892 u16 Client::allocateUnknownNodeId(const std::string &name)
1893 {
1894         errorstream << "Client::allocateUnknownNodeId(): "
1895                         << "Client cannot allocate node IDs" << std::endl;
1896         FATAL_ERROR("Client allocated unknown node");
1897
1898         return CONTENT_IGNORE;
1899 }
1900 ISoundManager* Client::getSoundManager()
1901 {
1902         return m_sound;
1903 }
1904 MtEventManager* Client::getEventManager()
1905 {
1906         return m_event;
1907 }
1908
1909 ParticleManager* Client::getParticleManager()
1910 {
1911         return &m_particle_manager;
1912 }
1913
1914 scene::IAnimatedMesh* Client::getMesh(const std::string &filename)
1915 {
1916         StringMap::const_iterator it = m_mesh_data.find(filename);
1917         if (it == m_mesh_data.end()) {
1918                 errorstream << "Client::getMesh(): Mesh not found: \"" << filename
1919                         << "\"" << std::endl;
1920                 return NULL;
1921         }
1922         const std::string &data    = it->second;
1923         scene::ISceneManager *smgr = m_device->getSceneManager();
1924
1925         // Create the mesh, remove it from cache and return it
1926         // This allows unique vertex colors and other properties for each instance
1927         Buffer<char> data_rw(data.c_str(), data.size()); // Const-incorrect Irrlicht
1928         io::IFileSystem *irrfs = m_device->getFileSystem();
1929         io::IReadFile *rfile   = irrfs->createMemoryReadFile(
1930                         *data_rw, data_rw.getSize(), filename.c_str());
1931         FATAL_ERROR_IF(!rfile, "Could not create/open RAM file");
1932
1933         scene::IAnimatedMesh *mesh = smgr->getMesh(rfile);
1934         rfile->drop();
1935         // NOTE: By playing with Irrlicht refcounts, maybe we could cache a bunch
1936         // of uniquely named instances and re-use them
1937         mesh->grab();
1938         smgr->getMeshCache()->removeMesh(mesh);
1939         return mesh;
1940 }