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/directiontables.h"
  26 #include "util/pointedthing.h"
  27 #include "util/serialize.h"
  28 #include "util/string.h"
  29 #include "client.h"
  30 #include "network/clientopcodes.h"
  31 #include "main.h"
  32 #include "filesys.h"
  33 #include "porting.h"
  34 #include "mapblock_mesh.h"
  35 #include "mapblock.h"
  36 #include "settings.h"
  37 #include "profiler.h"
  38 #include "gettext.h"
  39 #include "log.h"
  40 #include "nodemetadata.h"
  41 #include "itemdef.h"
  42 #include "shader.h"
  43 #include "clientmap.h"
  44 #include "clientmedia.h"
  45 #include "sound.h"
  46 #include "IMeshCache.h"
  47 #include "config.h"
  48 #include "version.h"
  49 #include "drawscene.h"
  50 #include "database-sqlite3.h"
  51 #include "serialization.h"
  52
  53 extern gui::IGUIEnvironment* guienv;
  54
  55 /*
  56         QueuedMeshUpdate
  57 */
  58
  59 QueuedMeshUpdate::QueuedMeshUpdate():
  60         p(-1337,-1337,-1337),
  61         data(NULL),
  62         ack_block_to_server(false)
  63 {
  64 }
  65
  66 QueuedMeshUpdate::~QueuedMeshUpdate()
  67 {
  68         if(data)
  69                 delete data;
  70 }
  71
  72 /*
  73         MeshUpdateQueue
  74 */
  75
  76 MeshUpdateQueue::MeshUpdateQueue()
  77 {
  78 }
  79
  80 MeshUpdateQueue::~MeshUpdateQueue()
  81 {
  82         JMutexAutoLock lock(m_mutex);
  83
  84         for(std::vector<QueuedMeshUpdate*>::iterator
  85                         i = m_queue.begin();
  86                         i != m_queue.end(); i++)
  87         {
  88                 QueuedMeshUpdate *q = *i;
  89                 delete q;
  90         }
  91 }
  92
  93 /*
  94         peer_id=0 adds with nobody to send to
  95 */
  96 void MeshUpdateQueue::addBlock(v3s16 p, MeshMakeData *data, bool ack_block_to_server, bool urgent)
  97 {
  98         DSTACK(__FUNCTION_NAME);
  99
 100         assert(data);   // pre-condition
 101
 102         JMutexAutoLock lock(m_mutex);
 103
 104         if(urgent)
 105                 m_urgents.insert(p);
 106
 107         /*
 108                 Find if block is already in queue.
 109                 If it is, update the data and quit.
 110         */
 111         for(std::vector<QueuedMeshUpdate*>::iterator
 112                         i = m_queue.begin();
 113                         i != m_queue.end(); i++)
 114         {
 115                 QueuedMeshUpdate *q = *i;
 116                 if(q->p == p)
 117                 {
 118                         if(q->data)
 119                                 delete q->data;
 120                         q->data = data;
 121                         if(ack_block_to_server)
 122                                 q->ack_block_to_server = true;
 123                         return;
 124                 }
 125         }
 126
 127         /*
 128                 Add the block
 129         */
 130         QueuedMeshUpdate *q = new QueuedMeshUpdate;
 131         q->p = p;
 132         q->data = data;
 133         q->ack_block_to_server = ack_block_to_server;
 134         m_queue.push_back(q);
 135 }
 136
 137 // Returned pointer must be deleted
 138 // Returns NULL if queue is empty
 139 QueuedMeshUpdate * MeshUpdateQueue::pop()
 140 {
 141         JMutexAutoLock lock(m_mutex);
 142
 143         bool must_be_urgent = !m_urgents.empty();
 144         for(std::vector<QueuedMeshUpdate*>::iterator
 145                         i = m_queue.begin();
 146                         i != m_queue.end(); i++)
 147         {
 148                 QueuedMeshUpdate *q = *i;
 149                 if(must_be_urgent && m_urgents.count(q->p) == 0)
 150                         continue;
 151                 m_queue.erase(i);
 152                 m_urgents.erase(q->p);
 153                 return q;
 154         }
 155         return NULL;
 156 }
 157
 158 /*
 159         MeshUpdateThread
 160 */
 161
 162 void * MeshUpdateThread::Thread()
 163 {
 164         ThreadStarted();
 165
 166         log_register_thread("MeshUpdateThread");
 167
 168         DSTACK(__FUNCTION_NAME);
 169
 170         BEGIN_DEBUG_EXCEPTION_HANDLER
 171
 172         porting::setThreadName("MeshUpdateThread");
 173
 174         while(!StopRequested())
 175         {
 176                 QueuedMeshUpdate *q = m_queue_in.pop();
 177                 if(q == NULL)
 178                 {
 179                         sleep_ms(3);
 180                         continue;
 181                 }
 182
 183                 ScopeProfiler sp(g_profiler, "Client: Mesh making");
 184
 185                 MapBlockMesh *mesh_new = new MapBlockMesh(q->data, m_camera_offset);
 186                 if(mesh_new->getMesh()->getMeshBufferCount() == 0)
 187                 {
 188                         delete mesh_new;
 189                         mesh_new = NULL;
 190                 }
 191
 192                 MeshUpdateResult r;
 193                 r.p = q->p;
 194                 r.mesh = mesh_new;
 195                 r.ack_block_to_server = q->ack_block_to_server;
 196
 197                 m_queue_out.push_back(r);
 198
 199                 delete q;
 200         }
 201
 202         END_DEBUG_EXCEPTION_HANDLER(errorstream)
 203
 204         return NULL;
 205 }
 206
 207 /*
 208         Client
 209 */
 210
 211 Client::Client(
 212                 IrrlichtDevice *device,
 213                 const char *playername,
 214                 std::string password,
 215                 MapDrawControl &control,
 216                 IWritableTextureSource *tsrc,
 217                 IWritableShaderSource *shsrc,
 218                 IWritableItemDefManager *itemdef,
 219                 IWritableNodeDefManager *nodedef,
 220                 ISoundManager *sound,
 221                 MtEventManager *event,
 222                 bool ipv6
 223 ):
 224         m_packetcounter_timer(0.0),
 225         m_connection_reinit_timer(0.1),
 226         m_avg_rtt_timer(0.0),
 227         m_playerpos_send_timer(0.0),
 228         m_ignore_damage_timer(0.0),
 229         m_tsrc(tsrc),
 230         m_shsrc(shsrc),
 231         m_itemdef(itemdef),
 232         m_nodedef(nodedef),
 233         m_sound(sound),
 234         m_event(event),
 235         m_mesh_update_thread(this),
 236         m_env(
 237                 new ClientMap(this, this, control,
 238                         device->getSceneManager()->getRootSceneNode(),
 239                         device->getSceneManager(), 666),
 240                 device->getSceneManager(),
 241                 tsrc, this, device
 242         ),
 243         m_particle_manager(&m_env),
 244         m_con(PROTOCOL_ID, 512, CONNECTION_TIMEOUT, ipv6, this),
 245         m_device(device),
 246         m_server_ser_ver(SER_FMT_VER_INVALID),
 247         m_playeritem(0),
 248         m_inventory_updated(false),
 249         m_inventory_from_server(NULL),
 250         m_inventory_from_server_age(0.0),
 251         m_show_highlighted(false),
 252         m_animation_time(0),
 253         m_crack_level(-1),
 254         m_crack_pos(0,0,0),
 255         m_highlighted_pos(0,0,0),
 256         m_map_seed(0),
 257         m_password(password),
 258         m_access_denied(false),
 259         m_itemdef_received(false),
 260         m_nodedef_received(false),
 261         m_media_downloader(new ClientMediaDownloader()),
 262         m_time_of_day_set(false),
 263         m_last_time_of_day_f(-1),
 264         m_time_of_day_update_timer(0),
 265         m_recommended_send_interval(0.1),
 266         m_removed_sounds_check_timer(0),
 267         m_state(LC_Created),
 268         m_localdb(NULL)
 269 {
 270         // Add local player
 271         m_env.addPlayer(new LocalPlayer(this, playername));
 272
 273         m_cache_save_interval = g_settings->getU16("server_map_save_interval");
 274
 275         m_cache_smooth_lighting = g_settings->getBool("smooth_lighting");
 276         m_cache_enable_shaders  = g_settings->getBool("enable_shaders");
 277 }
 278
 279 void Client::Stop()
 280 {
 281         //request all client managed threads to stop
 282         m_mesh_update_thread.Stop();
 283         // Save local server map
 284         if (m_localdb) {
 285                 infostream << "Local map saving ended." << std::endl;
 286                 m_localdb->endSave();
 287         }
 288 }
 289
 290 bool Client::isShutdown()
 291 {
 292
 293         if (!m_mesh_update_thread.IsRunning()) return true;
 294
 295         return false;
 296 }
 297
 298 Client::~Client()
 299 {
 300         m_con.Disconnect();
 301
 302         m_mesh_update_thread.Stop();
 303         m_mesh_update_thread.Wait();
 304         while(!m_mesh_update_thread.m_queue_out.empty()) {
 305                 MeshUpdateResult r = m_mesh_update_thread.m_queue_out.pop_frontNoEx();
 306                 delete r.mesh;
 307         }
 308
 309
 310         delete m_inventory_from_server;
 311
 312         // Delete detached inventories
 313         for(std::map<std::string, Inventory*>::iterator
 314                         i = m_detached_inventories.begin();
 315                         i != m_detached_inventories.end(); i++){
 316                 delete i->second;
 317         }
 318
 319         // cleanup 3d model meshes on client shutdown
 320         while (m_device->getSceneManager()->getMeshCache()->getMeshCount() != 0) {
 321                 scene::IAnimatedMesh * mesh =
 322                         m_device->getSceneManager()->getMeshCache()->getMeshByIndex(0);
 323
 324                 if (mesh != NULL)
 325                         m_device->getSceneManager()->getMeshCache()->removeMesh(mesh);
 326         }
 327 }
 328
 329 void Client::connect(Address address,
 330                 const std::string &address_name,
 331                 bool is_local_server)
 332 {
 333         DSTACK(__FUNCTION_NAME);
 334
 335         initLocalMapSaving(address, address_name, is_local_server);
 336
 337         m_con.SetTimeoutMs(0);
 338         m_con.Connect(address);
 339 }
 340
 341 void Client::step(float dtime)
 342 {
 343         DSTACK(__FUNCTION_NAME);
 344
 345         // Limit a bit
 346         if(dtime > 2.0)
 347                 dtime = 2.0;
 348
 349         if(m_ignore_damage_timer > dtime)
 350                 m_ignore_damage_timer -= dtime;
 351         else
 352                 m_ignore_damage_timer = 0.0;
 353
 354         m_animation_time += dtime;
 355         if(m_animation_time > 60.0)
 356                 m_animation_time -= 60.0;
 357
 358         m_time_of_day_update_timer += dtime;
 359
 360         ReceiveAll();
 361
 362         /*
 363                 Packet counter
 364         */
 365         {
 366                 float &counter = m_packetcounter_timer;
 367                 counter -= dtime;
 368                 if(counter <= 0.0)
 369                 {
 370                         counter = 20.0;
 371
 372                         infostream << "Client packetcounter (" << m_packetcounter_timer
 373                                         << "):"<<std::endl;
 374                         m_packetcounter.print(infostream);
 375                         m_packetcounter.clear();
 376                 }
 377         }
 378
 379         // UGLY hack to fix 2 second startup delay caused by non existent
 380         // server client startup synchronization in local server or singleplayer mode
 381         static bool initial_step = true;
 382         if (initial_step) {
 383                 initial_step = false;
 384         }
 385         else if(m_state == LC_Created) {
 386                 float &counter = m_connection_reinit_timer;
 387                 counter -= dtime;
 388                 if(counter <= 0.0) {
 389                         counter = 2.0;
 390
 391                         Player *myplayer = m_env.getLocalPlayer();
 392                         FATAL_ERROR_IF(myplayer == NULL, "Local player not found in environment.");
 393
 394                         // Send TOSERVER_INIT
 395                         // [0] u16 TOSERVER_INIT
 396                         // [2] u8 SER_FMT_VER_HIGHEST_READ
 397                         // [3] u8[20] player_name
 398                         // [23] u8[28] password (new in some version)
 399                         // [51] u16 minimum supported network protocol version (added sometime)
 400                         // [53] u16 maximum supported network protocol version (added later than the previous one)
 401
 402                         char pName[PLAYERNAME_SIZE];
 403                         char pPassword[PASSWORD_SIZE];
 404                         memset(pName, 0, PLAYERNAME_SIZE * sizeof(char));
 405                         memset(pPassword, 0, PASSWORD_SIZE * sizeof(char));
 406
 407                         snprintf(pName, PLAYERNAME_SIZE, "%s", myplayer->getName());
 408                         snprintf(pPassword, PASSWORD_SIZE, "%s", m_password.c_str());
 409
 410                         NetworkPacket pkt(TOSERVER_INIT_LEGACY,
 411                                         1 + PLAYERNAME_SIZE + PASSWORD_SIZE + 2 + 2);
 412
 413                         pkt << (u8) SER_FMT_VER_HIGHEST_READ;
 414                         pkt.putRawString(pName,PLAYERNAME_SIZE);
 415                         pkt.putRawString(pPassword, PASSWORD_SIZE);
 416                         pkt << (u16) CLIENT_PROTOCOL_VERSION_MIN << (u16) CLIENT_PROTOCOL_VERSION_MAX;
 417
 418                         Send(&pkt);
 419                 }
 420
 421                 // Not connected, return
 422                 return;
 423         }
 424
 425         /*
 426                 Do stuff if connected
 427         */
 428
 429         /*
 430                 Run Map's timers and unload unused data
 431         */
 432         const float map_timer_and_unload_dtime = 5.25;
 433         if(m_map_timer_and_unload_interval.step(dtime, map_timer_and_unload_dtime)) {
 434                 ScopeProfiler sp(g_profiler, "Client: map timer and unload");
 435                 std::vector<v3s16> deleted_blocks;
 436                 m_env.getMap().timerUpdate(map_timer_and_unload_dtime,
 437                                 g_settings->getFloat("client_unload_unused_data_timeout"),
 438                                 &deleted_blocks);
 439
 440                 /*
 441                         Send info to server
 442                         NOTE: This loop is intentionally iterated the way it is.
 443                 */
 444
 445                 std::vector<v3s16>::iterator i = deleted_blocks.begin();
 446                 std::vector<v3s16> sendlist;
 447                 for(;;) {
 448                         if(sendlist.size() == 255 || i == deleted_blocks.end()) {
 449                                 if(sendlist.empty())
 450                                         break;
 451                                 /*
 452                                         [0] u16 command
 453                                         [2] u8 count
 454                                         [3] v3s16 pos_0
 455                                         [3+6] v3s16 pos_1
 456                                         ...
 457                                 */
 458                                 NetworkPacket pkt(TOSERVER_DELETEDBLOCKS, 1 + sizeof(v3s16) * sendlist.size());
 459
 460                                 pkt << (u8) sendlist.size();
 461
 462                                 u32 k = 0;
 463                                 for(std::vector<v3s16>::iterator
 464                                                 j = sendlist.begin();
 465                                                 j != sendlist.end(); ++j) {
 466                                         pkt << *j;
 467                                         k++;
 468                                 }
 469
 470                                 Send(&pkt);
 471
 472                                 if(i == deleted_blocks.end())
 473                                         break;
 474
 475                                 sendlist.clear();
 476                         }
 477
 478                         sendlist.push_back(*i);
 479                         ++i;
 480                 }
 481         }
 482
 483         /*
 484                 Handle environment
 485         */
 486         // Control local player (0ms)
 487         LocalPlayer *player = m_env.getLocalPlayer();
 488         assert(player != NULL);
 489         player->applyControl(dtime);
 490
 491         // Step environment
 492         m_env.step(dtime);
 493
 494         /*
 495                 Get events
 496         */
 497         for(;;) {
 498                 ClientEnvEvent event = m_env.getClientEvent();
 499                 if(event.type == CEE_NONE) {
 500                         break;
 501                 }
 502                 else if(event.type == CEE_PLAYER_DAMAGE) {
 503                         if(m_ignore_damage_timer <= 0) {
 504                                 u8 damage = event.player_damage.amount;
 505
 506                                 if(event.player_damage.send_to_server)
 507                                         sendDamage(damage);
 508
 509                                 // Add to ClientEvent queue
 510                                 ClientEvent event;
 511                                 event.type = CE_PLAYER_DAMAGE;
 512                                 event.player_damage.amount = damage;
 513                                 m_client_event_queue.push(event);
 514                         }
 515                 }
 516                 else if(event.type == CEE_PLAYER_BREATH) {
 517                                 u16 breath = event.player_breath.amount;
 518                                 sendBreath(breath);
 519                 }
 520         }
 521
 522         /*
 523                 Print some info
 524         */
 525         float &counter = m_avg_rtt_timer;
 526         counter += dtime;
 527         if(counter >= 10) {
 528                 counter = 0.0;
 529                 // connectedAndInitialized() is true, peer exists.
 530                 float avg_rtt = getRTT();
 531                 infostream << "Client: avg_rtt=" << avg_rtt << std::endl;
 532         }
 533
 534         /*
 535                 Send player position to server
 536         */
 537         {
 538                 float &counter = m_playerpos_send_timer;
 539                 counter += dtime;
 540                 if((m_state == LC_Ready) && (counter >= m_recommended_send_interval))
 541                 {
 542                         counter = 0.0;
 543                         sendPlayerPos();
 544                 }
 545         }
 546
 547         /*
 548                 Replace updated meshes
 549         */
 550         {
 551                 int num_processed_meshes = 0;
 552                 while(!m_mesh_update_thread.m_queue_out.empty())
 553                 {
 554                         num_processed_meshes++;
 555                         MeshUpdateResult r = m_mesh_update_thread.m_queue_out.pop_frontNoEx();
 556                         MapBlock *block = m_env.getMap().getBlockNoCreateNoEx(r.p);
 557                         if(block) {
 558                                 // Delete the old mesh
 559                                 if(block->mesh != NULL)
 560                                 {
 561                                         // TODO: Remove hardware buffers of meshbuffers of block->mesh
 562                                         delete block->mesh;
 563                                         block->mesh = NULL;
 564                                 }
 565
 566                                 // Replace with the new mesh
 567                                 block->mesh = r.mesh;
 568                         } else {
 569                                 delete r.mesh;
 570                         }
 571
 572                         if(r.ack_block_to_server) {
 573                                 /*
 574                                         Acknowledge block
 575                                         [0] u8 count
 576                                         [1] v3s16 pos_0
 577                                 */
 578                                 NetworkPacket pkt(TOSERVER_GOTBLOCKS, 1 + 6);
 579                                 pkt << (u8) 1 << r.p;
 580                                 Send(&pkt);
 581                         }
 582                 }
 583
 584                 if(num_processed_meshes > 0)
 585                         g_profiler->graphAdd("num_processed_meshes", num_processed_meshes);
 586         }
 587
 588         /*
 589                 Load fetched media
 590         */
 591         if (m_media_downloader && m_media_downloader->isStarted()) {
 592                 m_media_downloader->step(this);
 593                 if (m_media_downloader->isDone()) {
 594                         received_media();
 595                         delete m_media_downloader;
 596                         m_media_downloader = NULL;
 597                 }
 598         }
 599
 600         /*
 601                 If the server didn't update the inventory in a while, revert
 602                 the local inventory (so the player notices the lag problem
 603                 and knows something is wrong).
 604         */
 605         if(m_inventory_from_server)
 606         {
 607                 float interval = 10.0;
 608                 float count_before = floor(m_inventory_from_server_age / interval);
 609
 610                 m_inventory_from_server_age += dtime;
 611
 612                 float count_after = floor(m_inventory_from_server_age / interval);
 613
 614                 if(count_after != count_before)
 615                 {
 616                         // Do this every <interval> seconds after TOCLIENT_INVENTORY
 617                         // Reset the locally changed inventory to the authoritative inventory
 618                         Player *player = m_env.getLocalPlayer();
 619                         player->inventory = *m_inventory_from_server;
 620                         m_inventory_updated = true;
 621                 }
 622         }
 623
 624         /*
 625                 Update positions of sounds attached to objects
 626         */
 627         {
 628                 for(std::map<int, u16>::iterator
 629                                 i = m_sounds_to_objects.begin();
 630                                 i != m_sounds_to_objects.end(); i++)
 631                 {
 632                         int client_id = i->first;
 633                         u16 object_id = i->second;
 634                         ClientActiveObject *cao = m_env.getActiveObject(object_id);
 635                         if(!cao)
 636                                 continue;
 637                         v3f pos = cao->getPosition();
 638                         m_sound->updateSoundPosition(client_id, pos);
 639                 }
 640         }
 641
 642         /*
 643                 Handle removed remotely initiated sounds
 644         */
 645         m_removed_sounds_check_timer += dtime;
 646         if(m_removed_sounds_check_timer >= 2.32) {
 647                 m_removed_sounds_check_timer = 0;
 648                 // Find removed sounds and clear references to them
 649                 std::set<s32> removed_server_ids;
 650                 for(std::map<s32, int>::iterator
 651                                 i = m_sounds_server_to_client.begin();
 652                                 i != m_sounds_server_to_client.end();) {
 653                         s32 server_id = i->first;
 654                         int client_id = i->second;
 655                         i++;
 656                         if(!m_sound->soundExists(client_id)) {
 657                                 m_sounds_server_to_client.erase(server_id);
 658                                 m_sounds_client_to_server.erase(client_id);
 659                                 m_sounds_to_objects.erase(client_id);
 660                                 removed_server_ids.insert(server_id);
 661                         }
 662                 }
 663
 664                 // Sync to server
 665                 if(!removed_server_ids.empty()) {
 666                         size_t server_ids = removed_server_ids.size();
 667                         assert(server_ids <= 0xFFFF);
 668
 669                         NetworkPacket pkt(TOSERVER_REMOVED_SOUNDS, 2 + server_ids * 4);
 670
 671                         pkt << (u16) (server_ids & 0xFFFF);
 672
 673                         for(std::set<s32>::iterator i = removed_server_ids.begin();
 674                                         i != removed_server_ids.end(); i++)
 675                                 pkt << *i;
 676
 677                         Send(&pkt);
 678                 }
 679         }
 680
 681         // Write server map
 682         if (m_localdb && m_localdb_save_interval.step(dtime,
 683                         m_cache_save_interval)) {
 684                 m_localdb->endSave();
 685                 m_localdb->beginSave();
 686         }
 687 }
 688
 689 bool Client::loadMedia(const std::string &data, const std::string &filename)
 690 {
 691         // Silly irrlicht's const-incorrectness
 692         Buffer<char> data_rw(data.c_str(), data.size());
 693
 694         std::string name;
 695
 696         const char *image_ext[] = {
 697                 ".png", ".jpg", ".bmp", ".tga",
 698                 ".pcx", ".ppm", ".psd", ".wal", ".rgb",
 699                 NULL
 700         };
 701         name = removeStringEnd(filename, image_ext);
 702         if(name != "")
 703         {
 704                 verbosestream<<"Client: Attempting to load image "
 705                 <<"file \""<<filename<<"\""<<std::endl;
 706
 707                 io::IFileSystem *irrfs = m_device->getFileSystem();
 708                 video::IVideoDriver *vdrv = m_device->getVideoDriver();
 709
 710                 // Create an irrlicht memory file
 711                 io::IReadFile *rfile = irrfs->createMemoryReadFile(
 712                                 *data_rw, data_rw.getSize(), "_tempreadfile");
 713
 714                 FATAL_ERROR_IF(!rfile, "Could not create irrlicht memory file.");
 715
 716                 // Read image
 717                 video::IImage *img = vdrv->createImageFromFile(rfile);
 718                 if(!img){
 719                         errorstream<<"Client: Cannot create image from data of "
 720                                         <<"file \""<<filename<<"\""<<std::endl;
 721                         rfile->drop();
 722                         return false;
 723                 }
 724                 else {
 725                         m_tsrc->insertSourceImage(filename, img);
 726                         img->drop();
 727                         rfile->drop();
 728                         return true;
 729                 }
 730         }
 731
 732         const char *sound_ext[] = {
 733                 ".0.ogg", ".1.ogg", ".2.ogg", ".3.ogg", ".4.ogg",
 734                 ".5.ogg", ".6.ogg", ".7.ogg", ".8.ogg", ".9.ogg",
 735                 ".ogg", NULL
 736         };
 737         name = removeStringEnd(filename, sound_ext);
 738         if(name != "")
 739         {
 740                 verbosestream<<"Client: Attempting to load sound "
 741                 <<"file \""<<filename<<"\""<<std::endl;
 742                 m_sound->loadSoundData(name, data);
 743                 return true;
 744         }
 745
 746         const char *model_ext[] = {
 747                 ".x", ".b3d", ".md2", ".obj",
 748                 NULL
 749         };
 750         name = removeStringEnd(filename, model_ext);
 751         if(name != "")
 752         {
 753                 verbosestream<<"Client: Storing model into memory: "
 754                                 <<"\""<<filename<<"\""<<std::endl;
 755                 if(m_mesh_data.count(filename))
 756                         errorstream<<"Multiple models with name \""<<filename.c_str()
 757                                         <<"\" found; replacing previous model"<<std::endl;
 758                 m_mesh_data[filename] = data;
 759                 return true;
 760         }
 761
 762         errorstream<<"Client: Don't know how to load file \""
 763                         <<filename<<"\""<<std::endl;
 764         return false;
 765 }
 766
 767 // Virtual methods from con::PeerHandler
 768 void Client::peerAdded(con::Peer *peer)
 769 {
 770         infostream<<"Client::peerAdded(): peer->id="
 771                         <<peer->id<<std::endl;
 772 }
 773 void Client::deletingPeer(con::Peer *peer, bool timeout)
 774 {
 775         infostream<<"Client::deletingPeer(): "
 776                         "Server Peer is getting deleted "
 777                         <<"(timeout="<<timeout<<")"<<std::endl;
 778 }
 779
 780 /*
 781         u16 command
 782         u16 number of files requested
 783         for each file {
 784                 u16 length of name
 785                 string name
 786         }
 787 */
 788 void Client::request_media(const std::vector<std::string> &file_requests)
 789 {
 790         std::ostringstream os(std::ios_base::binary);
 791         writeU16(os, TOSERVER_REQUEST_MEDIA);
 792         size_t file_requests_size = file_requests.size();
 793
 794         FATAL_ERROR_IF(file_requests_size > 0xFFFF, "Unsupported number of file requests");
 795
 796         // Packet dynamicly resized
 797         NetworkPacket pkt(TOSERVER_REQUEST_MEDIA, 2 + 0);
 798
 799         pkt << (u16) (file_requests_size & 0xFFFF);
 800
 801         for(std::vector<std::string>::const_iterator i = file_requests.begin();
 802                         i != file_requests.end(); ++i) {
 803                 pkt << (*i);
 804         }
 805
 806         Send(&pkt);
 807
 808         infostream << "Client: Sending media request list to server ("
 809                         << file_requests.size() << " files. packet size)" << std::endl;
 810 }
 811
 812 void Client::received_media()
 813 {
 814         NetworkPacket pkt(TOSERVER_RECEIVED_MEDIA, 0);
 815         Send(&pkt);
 816         infostream << "Client: Notifying server that we received all media"
 817                         << std::endl;
 818 }
 819
 820 void Client::initLocalMapSaving(const Address &address,
 821                 const std::string &hostname,
 822                 bool is_local_server)
 823 {
 824         if (!g_settings->getBool("enable_local_map_saving") || is_local_server) {
 825                 return;
 826         }
 827
 828         const std::string world_path = porting::path_user
 829                 + DIR_DELIM + "worlds"
 830                 + DIR_DELIM + "server_"
 831                 + hostname + "_" + to_string(address.getPort());
 832
 833         fs::CreateAllDirs(world_path);
 834
 835         m_localdb = new Database_SQLite3(world_path);
 836         m_localdb->beginSave();
 837         actionstream << "Local map saving started, map will be saved at '" << world_path << "'" << std::endl;
 838 }
 839
 840 void Client::ReceiveAll()
 841 {
 842         DSTACK(__FUNCTION_NAME);
 843         u32 start_ms = porting::getTimeMs();
 844         for(;;)
 845         {
 846                 // Limit time even if there would be huge amounts of data to
 847                 // process
 848                 if(porting::getTimeMs() > start_ms + 100)
 849                         break;
 850
 851                 try {
 852                         Receive();
 853                         g_profiler->graphAdd("client_received_packets", 1);
 854                 }
 855                 catch(con::NoIncomingDataException &e) {
 856                         break;
 857                 }
 858                 catch(con::InvalidIncomingDataException &e) {
 859                         infostream<<"Client::ReceiveAll(): "
 860                                         "InvalidIncomingDataException: what()="
 861                                         <<e.what()<<std::endl;
 862                 }
 863         }
 864 }
 865
 866 void Client::Receive()
 867 {
 868         DSTACK(__FUNCTION_NAME);
 869         SharedBuffer<u8> data;
 870         u16 sender_peer_id;
 871         u32 datasize = m_con.Receive(sender_peer_id, data);
 872         ProcessData(*data, datasize, sender_peer_id);
 873 }
 874
 875 inline void Client::handleCommand(NetworkPacket* pkt)
 876 {
 877         const ToClientCommandHandler& opHandle = toClientCommandTable[pkt->getCommand()];
 878         (this->*opHandle.handler)(pkt);
 879 }
 880
 881 /*
 882         sender_peer_id given to this shall be quaranteed to be a valid peer
 883 */
 884 void Client::ProcessData(u8 *data, u32 datasize, u16 sender_peer_id)
 885 {
 886         DSTACK(__FUNCTION_NAME);
 887
 888         // Ignore packets that don't even fit a command
 889         if(datasize < 2) {
 890                 m_packetcounter.add(60000);
 891                 return;
 892         }
 893
 894         NetworkPacket pkt(data, datasize, sender_peer_id);
 895
 896         ToClientCommand command = (ToClientCommand) pkt.getCommand();
 897
 898         //infostream<<"Client: received command="<<command<<std::endl;
 899         m_packetcounter.add((u16)command);
 900
 901         /*
 902                 If this check is removed, be sure to change the queue
 903                 system to know the ids
 904         */
 905         if(sender_peer_id != PEER_ID_SERVER) {
 906                 infostream << "Client::ProcessData(): Discarding data not "
 907                         "coming from server: peer_id=" << sender_peer_id
 908                         << std::endl;
 909                 return;
 910         }
 911
 912         // Command must be handled into ToClientCommandHandler
 913         if (command >= TOCLIENT_NUM_MSG_TYPES) {
 914                 infostream << "Client: Ignoring unknown command "
 915                         << command << std::endl;
 916         }
 917
 918         /*
 919          * Those packets are handled before m_server_ser_ver is set, it's normal
 920          * But we must use the new ToClientConnectionState in the future,
 921          * as a byte mask
 922          */
 923         if(toClientCommandTable[command].state == TOCLIENT_STATE_NOT_CONNECTED) {
 924                 handleCommand(&pkt);
 925                 return;
 926         }
 927
 928         if(m_server_ser_ver == SER_FMT_VER_INVALID) {
 929                 infostream << "Client: Server serialization"
 930                                 " format invalid or not initialized."
 931                                 " Skipping incoming command=" << command << std::endl;
 932                 return;
 933         }
 934
 935         /*
 936           Handle runtime commands
 937         */
 938
 939         handleCommand(&pkt);
 940 }
 941
 942 void Client::Send(NetworkPacket* pkt)
 943 {
 944         m_con.Send(PEER_ID_SERVER,
 945                 serverCommandFactoryTable[pkt->getCommand()].channel,
 946                 pkt,
 947                 serverCommandFactoryTable[pkt->getCommand()].reliable);
 948 }
 949
 950 void Client::interact(u8 action, const PointedThing& pointed)
 951 {
 952         if(m_state != LC_Ready) {
 953                 errorstream << "Client::interact() "
 954                                 "cancelled (not connected)"
 955                                 << std::endl;
 956                 return;
 957         }
 958
 959         /*
 960                 [0] u16 command
 961                 [2] u8 action
 962                 [3] u16 item
 963                 [5] u32 length of the next item
 964                 [9] serialized PointedThing
 965                 actions:
 966                 0: start digging (from undersurface) or use
 967                 1: stop digging (all parameters ignored)
 968                 2: digging completed
 969                 3: place block or item (to abovesurface)
 970                 4: use item
 971         */
 972
 973         NetworkPacket pkt(TOSERVER_INTERACT, 1 + 2 + 0);
 974
 975         pkt << action;
 976         pkt << (u16)getPlayerItem();
 977
 978         std::ostringstream tmp_os(std::ios::binary);
 979         pointed.serialize(tmp_os);
 980
 981         pkt.putLongString(tmp_os.str());
 982
 983         Send(&pkt);
 984 }
 985
 986 void Client::sendNodemetaFields(v3s16 p, const std::string &formname,
 987                 const std::map<std::string, std::string> &fields)
 988 {
 989         size_t fields_size = fields.size();
 990
 991         FATAL_ERROR_IF(fields_size > 0xFFFF, "Unsupported number of nodemeta fields");
 992
 993         NetworkPacket pkt(TOSERVER_NODEMETA_FIELDS, 0);
 994
 995         pkt << p << formname << (u16) (fields_size & 0xFFFF);
 996
 997         for(std::map<std::string, std::string>::const_iterator
 998                         i = fields.begin(); i != fields.end(); i++) {
 999                 const std::string &name = i->first;
1000                 const std::string &value = i->second;
1001                 pkt << name;
1002                 pkt.putLongString(value);
1003         }
1004
1005         Send(&pkt);
1006 }
1007
1008 void Client::sendInventoryFields(const std::string &formname,
1009                 const std::map<std::string, std::string> &fields)
1010 {
1011         size_t fields_size = fields.size();
1012         FATAL_ERROR_IF(fields_size > 0xFFFF, "Unsupported number of inventory fields");
1013
1014         NetworkPacket pkt(TOSERVER_INVENTORY_FIELDS, 0);
1015         pkt << formname << (u16) (fields_size & 0xFFFF);
1016
1017         for(std::map<std::string, std::string>::const_iterator
1018                         i = fields.begin(); i != fields.end(); i++) {
1019                 const std::string &name  = i->first;
1020                 const std::string &value = i->second;
1021                 pkt << name;
1022                 pkt.putLongString(value);
1023         }
1024
1025         Send(&pkt);
1026 }
1027
1028 void Client::sendInventoryAction(InventoryAction *a)
1029 {
1030         std::ostringstream os(std::ios_base::binary);
1031
1032         a->serialize(os);
1033
1034         // Make data buffer
1035         std::string s = os.str();
1036
1037         NetworkPacket pkt(TOSERVER_INVENTORY_ACTION, s.size());
1038         pkt.putRawString(s.c_str(),s.size());
1039
1040         Send(&pkt);
1041 }
1042
1043 void Client::sendChatMessage(const std::wstring &message)
1044 {
1045         NetworkPacket pkt(TOSERVER_CHAT_MESSAGE, 2 + message.size() * sizeof(u16));
1046
1047         pkt << message;
1048
1049         Send(&pkt);
1050 }
1051
1052 void Client::sendChangePassword(const std::wstring &oldpassword,
1053         const std::wstring &newpassword)
1054 {
1055         Player *player = m_env.getLocalPlayer();
1056         if(player == NULL)
1057                 return;
1058
1059         std::string playername = player->getName();
1060         std::string oldpwd = translatePassword(playername, oldpassword);
1061         std::string newpwd = translatePassword(playername, newpassword);
1062
1063         NetworkPacket pkt(TOSERVER_PASSWORD_LEGACY, 2 * PASSWORD_SIZE);
1064
1065         for(u8 i = 0; i < PASSWORD_SIZE; i++) {
1066                 pkt << (u8) (i < oldpwd.length() ? oldpwd[i] : 0);
1067         }
1068
1069         for(u8 i = 0; i < PASSWORD_SIZE; i++) {
1070                 pkt << (u8) (i < newpwd.length() ? newpwd[i] : 0);
1071         }
1072
1073         Send(&pkt);
1074 }
1075
1076
1077 void Client::sendDamage(u8 damage)
1078 {
1079         DSTACK(__FUNCTION_NAME);
1080
1081         NetworkPacket pkt(TOSERVER_DAMAGE, sizeof(u8));
1082         pkt << damage;
1083         Send(&pkt);
1084 }
1085
1086 void Client::sendBreath(u16 breath)
1087 {
1088         DSTACK(__FUNCTION_NAME);
1089
1090         NetworkPacket pkt(TOSERVER_BREATH, sizeof(u16));
1091         pkt << breath;
1092         Send(&pkt);
1093 }
1094
1095 void Client::sendRespawn()
1096 {
1097         DSTACK(__FUNCTION_NAME);
1098
1099         NetworkPacket pkt(TOSERVER_RESPAWN, 0);
1100         Send(&pkt);
1101 }
1102
1103 void Client::sendReady()
1104 {
1105         DSTACK(__FUNCTION_NAME);
1106
1107         NetworkPacket pkt(TOSERVER_CLIENT_READY,
1108                         1 + 1 + 1 + 1 + 2 + sizeof(char) * strlen(minetest_version_hash));
1109
1110         pkt << (u8) VERSION_MAJOR << (u8) VERSION_MINOR << (u8) VERSION_PATCH_ORIG
1111                 << (u8) 0 << (u16) strlen(minetest_version_hash);
1112
1113         pkt.putRawString(minetest_version_hash, (u16) strlen(minetest_version_hash));
1114         Send(&pkt);
1115 }
1116
1117 void Client::sendPlayerPos()
1118 {
1119         LocalPlayer *myplayer = m_env.getLocalPlayer();
1120         if(myplayer == NULL)
1121                 return;
1122
1123         // Save bandwidth by only updating position when something changed
1124         if(myplayer->last_position        == myplayer->getPosition() &&
1125                         myplayer->last_speed      == myplayer->getSpeed()    &&
1126                         myplayer->last_pitch      == myplayer->getPitch()    &&
1127                         myplayer->last_yaw        == myplayer->getYaw()      &&
1128                         myplayer->last_keyPressed == myplayer->keyPressed)
1129                 return;
1130
1131         myplayer->last_position   = myplayer->getPosition();
1132         myplayer->last_speed      = myplayer->getSpeed();
1133         myplayer->last_pitch      = myplayer->getPitch();
1134         myplayer->last_yaw        = myplayer->getYaw();
1135         myplayer->last_keyPressed = myplayer->keyPressed;
1136
1137         u16 our_peer_id;
1138         {
1139                 //JMutexAutoLock lock(m_con_mutex); //bulk comment-out
1140                 our_peer_id = m_con.GetPeerID();
1141         }
1142
1143         // Set peer id if not set already
1144         if(myplayer->peer_id == PEER_ID_INEXISTENT)
1145                 myplayer->peer_id = our_peer_id;
1146
1147         assert(myplayer->peer_id == our_peer_id);
1148
1149         v3f pf         = myplayer->getPosition();
1150         v3f sf         = myplayer->getSpeed();
1151         s32 pitch      = myplayer->getPitch() * 100;
1152         s32 yaw        = myplayer->getYaw() * 100;
1153         u32 keyPressed = myplayer->keyPressed;
1154
1155         v3s32 position(pf.X*100, pf.Y*100, pf.Z*100);
1156         v3s32 speed(sf.X*100, sf.Y*100, sf.Z*100);
1157         /*
1158                 Format:
1159                 [0] v3s32 position*100
1160                 [12] v3s32 speed*100
1161                 [12+12] s32 pitch*100
1162                 [12+12+4] s32 yaw*100
1163                 [12+12+4+4] u32 keyPressed
1164         */
1165
1166         NetworkPacket pkt(TOSERVER_PLAYERPOS, 12 + 12 + 4 + 4 + 4);
1167
1168         pkt << position << speed << pitch << yaw << keyPressed;
1169
1170         Send(&pkt);
1171 }
1172
1173 void Client::sendPlayerItem(u16 item)
1174 {
1175         Player *myplayer = m_env.getLocalPlayer();
1176         if(myplayer == NULL)
1177                 return;
1178
1179         u16 our_peer_id = m_con.GetPeerID();
1180
1181         // Set peer id if not set already
1182         if(myplayer->peer_id == PEER_ID_INEXISTENT)
1183                 myplayer->peer_id = our_peer_id;
1184         assert(myplayer->peer_id == our_peer_id);
1185
1186         NetworkPacket pkt(TOSERVER_PLAYERITEM, 2);
1187
1188         pkt << item;
1189
1190         Send(&pkt);
1191 }
1192
1193 void Client::removeNode(v3s16 p)
1194 {
1195         std::map<v3s16, MapBlock*> modified_blocks;
1196
1197         try {
1198                 m_env.getMap().removeNodeAndUpdate(p, modified_blocks);
1199         }
1200         catch(InvalidPositionException &e) {
1201         }
1202
1203         for(std::map<v3s16, MapBlock *>::iterator
1204                         i = modified_blocks.begin();
1205                         i != modified_blocks.end(); ++i) {
1206                 addUpdateMeshTaskWithEdge(i->first, false, true);
1207         }
1208 }
1209
1210 void Client::addNode(v3s16 p, MapNode n, bool remove_metadata)
1211 {
1212         //TimeTaker timer1("Client::addNode()");
1213
1214         std::map<v3s16, MapBlock*> modified_blocks;
1215
1216         try {
1217                 //TimeTaker timer3("Client::addNode(): addNodeAndUpdate");
1218                 m_env.getMap().addNodeAndUpdate(p, n, modified_blocks, remove_metadata);
1219         }
1220         catch(InvalidPositionException &e) {
1221         }
1222
1223         for(std::map<v3s16, MapBlock *>::iterator
1224                         i = modified_blocks.begin();
1225                         i != modified_blocks.end(); ++i) {
1226                 addUpdateMeshTaskWithEdge(i->first, false, true);
1227         }
1228 }
1229
1230 void Client::setPlayerControl(PlayerControl &control)
1231 {
1232         LocalPlayer *player = m_env.getLocalPlayer();
1233         assert(player != NULL);
1234         player->control = control;
1235 }
1236
1237 void Client::selectPlayerItem(u16 item)
1238 {
1239         m_playeritem = item;
1240         m_inventory_updated = true;
1241         sendPlayerItem(item);
1242 }
1243
1244 // Returns true if the inventory of the local player has been
1245 // updated from the server. If it is true, it is set to false.
1246 bool Client::getLocalInventoryUpdated()
1247 {
1248         bool updated = m_inventory_updated;
1249         m_inventory_updated = false;
1250         return updated;
1251 }
1252
1253 // Copies the inventory of the local player to parameter
1254 void Client::getLocalInventory(Inventory &dst)
1255 {
1256         Player *player = m_env.getLocalPlayer();
1257         assert(player != NULL);
1258         dst = player->inventory;
1259 }
1260
1261 Inventory* Client::getInventory(const InventoryLocation &loc)
1262 {
1263         switch(loc.type){
1264         case InventoryLocation::UNDEFINED:
1265         {}
1266         break;
1267         case InventoryLocation::CURRENT_PLAYER:
1268         {
1269                 Player *player = m_env.getLocalPlayer();
1270                 assert(player != NULL);
1271                 return &player->inventory;
1272         }
1273         break;
1274         case InventoryLocation::PLAYER:
1275         {
1276                 Player *player = m_env.getPlayer(loc.name.c_str());
1277                 if(!player)
1278                         return NULL;
1279                 return &player->inventory;
1280         }
1281         break;
1282         case InventoryLocation::NODEMETA:
1283         {
1284                 NodeMetadata *meta = m_env.getMap().getNodeMetadata(loc.p);
1285                 if(!meta)
1286                         return NULL;
1287                 return meta->getInventory();
1288         }
1289         break;
1290         case InventoryLocation::DETACHED:
1291         {
1292                 if(m_detached_inventories.count(loc.name) == 0)
1293                         return NULL;
1294                 return m_detached_inventories[loc.name];
1295         }
1296         break;
1297         default:
1298                 FATAL_ERROR("Invalid inventory location type.");
1299         }
1300         return NULL;
1301 }
1302
1303 void Client::inventoryAction(InventoryAction *a)
1304 {
1305         /*
1306                 Send it to the server
1307         */
1308         sendInventoryAction(a);
1309
1310         /*
1311                 Predict some local inventory changes
1312         */
1313         a->clientApply(this, this);
1314
1315         // Remove it
1316         delete a;
1317 }
1318
1319 ClientActiveObject * Client::getSelectedActiveObject(
1320                 f32 max_d,
1321                 v3f from_pos_f_on_map,
1322                 core::line3d<f32> shootline_on_map
1323         )
1324 {
1325         std::vector<DistanceSortedActiveObject> objects;
1326
1327         m_env.getActiveObjects(from_pos_f_on_map, max_d, objects);
1328
1329         // Sort them.
1330         // After this, the closest object is the first in the array.
1331         std::sort(objects.begin(), objects.end());
1332
1333         for(unsigned int i=0; i<objects.size(); i++)
1334         {
1335                 ClientActiveObject *obj = objects[i].obj;
1336
1337                 core::aabbox3d<f32> *selection_box = obj->getSelectionBox();
1338                 if(selection_box == NULL)
1339                         continue;
1340
1341                 v3f pos = obj->getPosition();
1342
1343                 core::aabbox3d<f32> offsetted_box(
1344                                 selection_box->MinEdge + pos,
1345                                 selection_box->MaxEdge + pos
1346                 );
1347
1348                 if(offsetted_box.intersectsWithLine(shootline_on_map))
1349                 {
1350                         return obj;
1351                 }
1352         }
1353
1354         return NULL;
1355 }
1356
1357 std::list<std::string> Client::getConnectedPlayerNames()
1358 {
1359         return m_env.getPlayerNames();
1360 }
1361
1362 float Client::getAnimationTime()
1363 {
1364         return m_animation_time;
1365 }
1366
1367 int Client::getCrackLevel()
1368 {
1369         return m_crack_level;
1370 }
1371
1372 void Client::setHighlighted(v3s16 pos, bool show_highlighted)
1373 {
1374         m_show_highlighted = show_highlighted;
1375         v3s16 old_highlighted_pos = m_highlighted_pos;
1376         m_highlighted_pos = pos;
1377         addUpdateMeshTaskForNode(old_highlighted_pos, false, true);
1378         addUpdateMeshTaskForNode(m_highlighted_pos, false, true);
1379 }
1380
1381 void Client::setCrack(int level, v3s16 pos)
1382 {
1383         int old_crack_level = m_crack_level;
1384         v3s16 old_crack_pos = m_crack_pos;
1385
1386         m_crack_level = level;
1387         m_crack_pos = pos;
1388
1389         if(old_crack_level >= 0 && (level < 0 || pos != old_crack_pos))
1390         {
1391                 // remove old crack
1392                 addUpdateMeshTaskForNode(old_crack_pos, false, true);
1393         }
1394         if(level >= 0 && (old_crack_level < 0 || pos != old_crack_pos))
1395         {
1396                 // add new crack
1397                 addUpdateMeshTaskForNode(pos, false, true);
1398         }
1399 }
1400
1401 u16 Client::getHP()
1402 {
1403         Player *player = m_env.getLocalPlayer();
1404         assert(player != NULL);
1405         return player->hp;
1406 }
1407
1408 u16 Client::getBreath()
1409 {
1410         Player *player = m_env.getLocalPlayer();
1411         assert(player != NULL);
1412         return player->getBreath();
1413 }
1414
1415 bool Client::getChatMessage(std::wstring &message)
1416 {
1417         if(m_chat_queue.size() == 0)
1418                 return false;
1419         message = m_chat_queue.front();
1420         m_chat_queue.pop();
1421         return true;
1422 }
1423
1424 void Client::typeChatMessage(const std::wstring &message)
1425 {
1426         // Discard empty line
1427         if(message == L"")
1428                 return;
1429
1430         // Send to others
1431         sendChatMessage(message);
1432
1433         // Show locally
1434         if (message[0] == L'/')
1435         {
1436                 m_chat_queue.push((std::wstring)L"issued command: " + message);
1437         }
1438         else
1439         {
1440                 LocalPlayer *player = m_env.getLocalPlayer();
1441                 assert(player != NULL);
1442                 std::wstring name = narrow_to_wide(player->getName());
1443                 m_chat_queue.push((std::wstring)L"<" + name + L"> " + message);
1444         }
1445 }
1446
1447 void Client::addUpdateMeshTask(v3s16 p, bool ack_to_server, bool urgent)
1448 {
1449         MapBlock *b = m_env.getMap().getBlockNoCreateNoEx(p);
1450         if(b == NULL)
1451                 return;
1452
1453         /*
1454                 Create a task to update the mesh of the block
1455         */
1456
1457         MeshMakeData *data = new MeshMakeData(this, m_cache_enable_shaders);
1458
1459         {
1460                 //TimeTaker timer("data fill");
1461                 // Release: ~0ms
1462                 // Debug: 1-6ms, avg=2ms
1463                 data->fill(b);
1464                 data->setCrack(m_crack_level, m_crack_pos);
1465                 data->setHighlighted(m_highlighted_pos, m_show_highlighted);
1466                 data->setSmoothLighting(m_cache_smooth_lighting);
1467         }
1468
1469         // Add task to queue
1470         m_mesh_update_thread.m_queue_in.addBlock(p, data, ack_to_server, urgent);
1471 }
1472
1473 void Client::addUpdateMeshTaskWithEdge(v3s16 blockpos, bool ack_to_server, bool urgent)
1474 {
1475         try{
1476                 addUpdateMeshTask(blockpos, ack_to_server, urgent);
1477         }
1478         catch(InvalidPositionException &e){}
1479
1480         // Leading edge
1481         for (int i=0;i<6;i++)
1482         {
1483                 try{
1484                         v3s16 p = blockpos + g_6dirs[i];
1485                         addUpdateMeshTask(p, false, urgent);
1486                 }
1487                 catch(InvalidPositionException &e){}
1488         }
1489 }
1490
1491 void Client::addUpdateMeshTaskForNode(v3s16 nodepos, bool ack_to_server, bool urgent)
1492 {
1493         {
1494                 v3s16 p = nodepos;
1495                 infostream<<"Client::addUpdateMeshTaskForNode(): "
1496                                 <<"("<<p.X<<","<<p.Y<<","<<p.Z<<")"
1497                                 <<std::endl;
1498         }
1499
1500         v3s16 blockpos          = getNodeBlockPos(nodepos);
1501         v3s16 blockpos_relative = blockpos * MAP_BLOCKSIZE;
1502
1503         try{
1504                 addUpdateMeshTask(blockpos, ack_to_server, urgent);
1505         }
1506         catch(InvalidPositionException &e) {}
1507
1508         // Leading edge
1509         if(nodepos.X == blockpos_relative.X){
1510                 try{
1511                         v3s16 p = blockpos + v3s16(-1,0,0);
1512                         addUpdateMeshTask(p, false, urgent);
1513                 }
1514                 catch(InvalidPositionException &e){}
1515         }
1516
1517         if(nodepos.Y == blockpos_relative.Y){
1518                 try{
1519                         v3s16 p = blockpos + v3s16(0,-1,0);
1520                         addUpdateMeshTask(p, false, urgent);
1521                 }
1522                 catch(InvalidPositionException &e){}
1523         }
1524
1525         if(nodepos.Z == blockpos_relative.Z){
1526                 try{
1527                         v3s16 p = blockpos + v3s16(0,0,-1);
1528                         addUpdateMeshTask(p, false, urgent);
1529                 }
1530                 catch(InvalidPositionException &e){}
1531         }
1532 }
1533
1534 ClientEvent Client::getClientEvent()
1535 {
1536         ClientEvent event;
1537         if(m_client_event_queue.size() == 0) {
1538                 event.type = CE_NONE;
1539         }
1540         else {
1541                 event = m_client_event_queue.front();
1542                 m_client_event_queue.pop();
1543         }
1544         return event;
1545 }
1546
1547 float Client::mediaReceiveProgress()
1548 {
1549         if (m_media_downloader)
1550                 return m_media_downloader->getProgress();
1551         else
1552                 return 1.0; // downloader only exists when not yet done
1553 }
1554
1555 void Client::afterContentReceived(IrrlichtDevice *device, gui::IGUIFont* font)
1556 {
1557         infostream<<"Client::afterContentReceived() started"<<std::endl;
1558         assert(m_itemdef_received); // pre-condition
1559         assert(m_nodedef_received); // pre-condition
1560         assert(mediaReceived()); // pre-condition
1561
1562         const wchar_t* text = wgettext("Loading textures...");
1563
1564         // Rebuild inherited images and recreate textures
1565         infostream<<"- Rebuilding images and textures"<<std::endl;
1566         draw_load_screen(text,device, guienv, 0, 70);
1567         m_tsrc->rebuildImagesAndTextures();
1568         delete[] text;
1569
1570         // Rebuild shaders
1571         infostream<<"- Rebuilding shaders"<<std::endl;
1572         text = wgettext("Rebuilding shaders...");
1573         draw_load_screen(text, device, guienv, 0, 75);
1574         m_shsrc->rebuildShaders();
1575         delete[] text;
1576
1577         // Update node aliases
1578         infostream<<"- Updating node aliases"<<std::endl;
1579         text = wgettext("Initializing nodes...");
1580         draw_load_screen(text, device, guienv, 0, 80);
1581         m_nodedef->updateAliases(m_itemdef);
1582         m_nodedef->setNodeRegistrationStatus(true);
1583         m_nodedef->runNodeResolverCallbacks();
1584         delete[] text;
1585
1586         // Update node textures and assign shaders to each tile
1587         infostream<<"- Updating node textures"<<std::endl;
1588         m_nodedef->updateTextures(this);
1589
1590         // Preload item textures and meshes if configured to
1591         if(g_settings->getBool("preload_item_visuals"))
1592         {
1593                 verbosestream<<"Updating item textures and meshes"<<std::endl;
1594                 text = wgettext("Item textures...");
1595                 draw_load_screen(text, device, guienv, 0, 0);
1596                 std::set<std::string> names = m_itemdef->getAll();
1597                 size_t size = names.size();
1598                 size_t count = 0;
1599                 int percent = 0;
1600                 for(std::set<std::string>::const_iterator
1601                                 i = names.begin(); i != names.end(); ++i)
1602                 {
1603                         // Asking for these caches the result
1604                         m_itemdef->getInventoryTexture(*i, this);
1605                         m_itemdef->getWieldMesh(*i, this);
1606                         count++;
1607                         percent = (count * 100 / size * 0.2) + 80;
1608                         draw_load_screen(text, device, guienv, 0, percent);
1609                 }
1610                 delete[] text;
1611         }
1612
1613         // Start mesh update thread after setting up content definitions
1614         infostream<<"- Starting mesh update thread"<<std::endl;
1615         m_mesh_update_thread.Start();
1616
1617         m_state = LC_Ready;
1618         sendReady();
1619         text = wgettext("Done!");
1620         draw_load_screen(text, device, guienv, 0, 100);
1621         infostream<<"Client::afterContentReceived() done"<<std::endl;
1622         delete[] text;
1623 }
1624
1625 float Client::getRTT(void)
1626 {
1627         return m_con.getPeerStat(PEER_ID_SERVER,con::AVG_RTT);
1628 }
1629
1630 float Client::getCurRate(void)
1631 {
1632         return ( m_con.getLocalStat(con::CUR_INC_RATE) +
1633                         m_con.getLocalStat(con::CUR_DL_RATE));
1634 }
1635
1636 float Client::getAvgRate(void)
1637 {
1638         return ( m_con.getLocalStat(con::AVG_INC_RATE) +
1639                         m_con.getLocalStat(con::AVG_DL_RATE));
1640 }
1641
1642 void Client::makeScreenshot(IrrlichtDevice *device)
1643 {
1644         irr::video::IVideoDriver *driver = device->getVideoDriver();
1645         irr::video::IImage* const raw_image = driver->createScreenShot();
1646         if (raw_image) {
1647                 irr::video::IImage* const image = driver->createImage(video::ECF_R8G8B8,
1648                         raw_image->getDimension());
1649
1650                 if (image) {
1651                         raw_image->copyTo(image);
1652                         irr::c8 filename[256];
1653                         snprintf(filename, sizeof(filename),
1654                                 (std::string("%s") + DIR_DELIM + "screenshot_%u.png").c_str(),
1655                                  g_settings->get("screenshot_path").c_str(),
1656                                  device->getTimer()->getRealTime());
1657                         std::ostringstream sstr;
1658                         if (driver->writeImageToFile(image, filename)) {
1659                                 sstr << "Saved screenshot to '" << filename << "'";
1660                         } else {
1661                                 sstr << "Failed to save screenshot '" << filename << "'";
1662                         }
1663                         m_chat_queue.push(narrow_to_wide(sstr.str()));
1664                         infostream << sstr.str() << std::endl;
1665                         image->drop();
1666                 }
1667                 raw_image->drop();
1668         }
1669 }
1670
1671 // IGameDef interface
1672 // Under envlock
1673 IItemDefManager* Client::getItemDefManager()
1674 {
1675         return m_itemdef;
1676 }
1677 INodeDefManager* Client::getNodeDefManager()
1678 {
1679         return m_nodedef;
1680 }
1681 ICraftDefManager* Client::getCraftDefManager()
1682 {
1683         return NULL;
1684         //return m_craftdef;
1685 }
1686 ITextureSource* Client::getTextureSource()
1687 {
1688         return m_tsrc;
1689 }
1690 IShaderSource* Client::getShaderSource()
1691 {
1692         return m_shsrc;
1693 }
1694 scene::ISceneManager* Client::getSceneManager()
1695 {
1696         return m_device->getSceneManager();
1697 }
1698 u16 Client::allocateUnknownNodeId(const std::string &name)
1699 {
1700         errorstream << "Client::allocateUnknownNodeId(): "
1701                         << "Client cannot allocate node IDs" << std::endl;
1702         FATAL_ERROR("Client allocated unknown node");
1703
1704         return CONTENT_IGNORE;
1705 }
1706 ISoundManager* Client::getSoundManager()
1707 {
1708         return m_sound;
1709 }
1710 MtEventManager* Client::getEventManager()
1711 {
1712         return m_event;
1713 }
1714
1715 ParticleManager* Client::getParticleManager()
1716 {
1717         return &m_particle_manager;
1718 }
1719
1720 scene::IAnimatedMesh* Client::getMesh(const std::string &filename)
1721 {
1722         std::map<std::string, std::string>::const_iterator i =
1723                         m_mesh_data.find(filename);
1724         if(i == m_mesh_data.end()){
1725                 errorstream<<"Client::getMesh(): Mesh not found: \""<<filename<<"\""
1726                                 <<std::endl;
1727                 return NULL;
1728         }
1729         const std::string &data    = i->second;
1730         scene::ISceneManager *smgr = m_device->getSceneManager();
1731
1732         // Create the mesh, remove it from cache and return it
1733         // This allows unique vertex colors and other properties for each instance
1734         Buffer<char> data_rw(data.c_str(), data.size()); // Const-incorrect Irrlicht
1735         io::IFileSystem *irrfs = m_device->getFileSystem();
1736         io::IReadFile *rfile   = irrfs->createMemoryReadFile(
1737                         *data_rw, data_rw.getSize(), filename.c_str());
1738         FATAL_ERROR_IF(!rfile, "Could not create/open RAM file");
1739
1740         scene::IAnimatedMesh *mesh = smgr->getMesh(rfile);
1741         rfile->drop();
1742         // NOTE: By playing with Irrlicht refcounts, maybe we could cache a bunch
1743         // of uniquely named instances and re-use them
1744         mesh->grab();
1745         smgr->getMeshCache()->removeMesh(mesh);
1746         return mesh;
1747 }