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 "filesys.h"
  32 #include "porting.h"
  33 #include "mapblock_mesh.h"
  34 #include "mapblock.h"
  35 #include "settings.h"
  36 #include "profiler.h"
  37 #include "gettext.h"
  38 #include "log.h"
  39 #include "nodemetadata.h"
  40 #include "itemdef.h"
  41 #include "shader.h"
  42 #include "clientmap.h"
  43 #include "clientmedia.h"
  44 #include "sound.h"
  45 #include "IMeshCache.h"
  46 #include "config.h"
  47 #include "version.h"
  48 #include "drawscene.h"
  49 #include "database-sqlite3.h"
  50 #include "serialization.h"
  51 #include "guiscalingfilter.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_LEGACY
 395                         // [0] u16 TOSERVER_INIT_LEGACY
 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                         sendLegacyInit(pName, pPassword);
 411                 }
 412
 413                 // Not connected, return
 414                 return;
 415         }
 416
 417         /*
 418                 Do stuff if connected
 419         */
 420
 421         /*
 422                 Run Map's timers and unload unused data
 423         */
 424         const float map_timer_and_unload_dtime = 5.25;
 425         if(m_map_timer_and_unload_interval.step(dtime, map_timer_and_unload_dtime)) {
 426                 ScopeProfiler sp(g_profiler, "Client: map timer and unload");
 427                 std::vector<v3s16> deleted_blocks;
 428                 m_env.getMap().timerUpdate(map_timer_and_unload_dtime,
 429                                 g_settings->getFloat("client_unload_unused_data_timeout"),
 430                                 &deleted_blocks);
 431
 432                 /*
 433                         Send info to server
 434                         NOTE: This loop is intentionally iterated the way it is.
 435                 */
 436
 437                 std::vector<v3s16>::iterator i = deleted_blocks.begin();
 438                 std::vector<v3s16> sendlist;
 439                 for(;;) {
 440                         if(sendlist.size() == 255 || i == deleted_blocks.end()) {
 441                                 if(sendlist.empty())
 442                                         break;
 443                                 /*
 444                                         [0] u16 command
 445                                         [2] u8 count
 446                                         [3] v3s16 pos_0
 447                                         [3+6] v3s16 pos_1
 448                                         ...
 449                                 */
 450
 451                                 sendDeletedBlocks(sendlist);
 452
 453                                 if(i == deleted_blocks.end())
 454                                         break;
 455
 456                                 sendlist.clear();
 457                         }
 458
 459                         sendlist.push_back(*i);
 460                         ++i;
 461                 }
 462         }
 463
 464         /*
 465                 Handle environment
 466         */
 467         // Control local player (0ms)
 468         LocalPlayer *player = m_env.getLocalPlayer();
 469         assert(player != NULL);
 470         player->applyControl(dtime);
 471
 472         // Step environment
 473         m_env.step(dtime);
 474
 475         /*
 476                 Get events
 477         */
 478         for(;;) {
 479                 ClientEnvEvent event = m_env.getClientEvent();
 480                 if(event.type == CEE_NONE) {
 481                         break;
 482                 }
 483                 else if(event.type == CEE_PLAYER_DAMAGE) {
 484                         if(m_ignore_damage_timer <= 0) {
 485                                 u8 damage = event.player_damage.amount;
 486
 487                                 if(event.player_damage.send_to_server)
 488                                         sendDamage(damage);
 489
 490                                 // Add to ClientEvent queue
 491                                 ClientEvent event;
 492                                 event.type = CE_PLAYER_DAMAGE;
 493                                 event.player_damage.amount = damage;
 494                                 m_client_event_queue.push(event);
 495                         }
 496                 }
 497                 else if(event.type == CEE_PLAYER_BREATH) {
 498                                 u16 breath = event.player_breath.amount;
 499                                 sendBreath(breath);
 500                 }
 501         }
 502
 503         /*
 504                 Print some info
 505         */
 506         float &counter = m_avg_rtt_timer;
 507         counter += dtime;
 508         if(counter >= 10) {
 509                 counter = 0.0;
 510                 // connectedAndInitialized() is true, peer exists.
 511                 float avg_rtt = getRTT();
 512                 infostream << "Client: avg_rtt=" << avg_rtt << std::endl;
 513         }
 514
 515         /*
 516                 Send player position to server
 517         */
 518         {
 519                 float &counter = m_playerpos_send_timer;
 520                 counter += dtime;
 521                 if((m_state == LC_Ready) && (counter >= m_recommended_send_interval))
 522                 {
 523                         counter = 0.0;
 524                         sendPlayerPos();
 525                 }
 526         }
 527
 528         /*
 529                 Replace updated meshes
 530         */
 531         {
 532                 int num_processed_meshes = 0;
 533                 while(!m_mesh_update_thread.m_queue_out.empty())
 534                 {
 535                         num_processed_meshes++;
 536                         MeshUpdateResult r = m_mesh_update_thread.m_queue_out.pop_frontNoEx();
 537                         MapBlock *block = m_env.getMap().getBlockNoCreateNoEx(r.p);
 538                         if(block) {
 539                                 // Delete the old mesh
 540                                 if(block->mesh != NULL)
 541                                 {
 542                                         // TODO: Remove hardware buffers of meshbuffers of block->mesh
 543                                         delete block->mesh;
 544                                         block->mesh = NULL;
 545                                 }
 546
 547                                 // Replace with the new mesh
 548                                 block->mesh = r.mesh;
 549                         } else {
 550                                 delete r.mesh;
 551                         }
 552
 553                         if(r.ack_block_to_server) {
 554                                 /*
 555                                         Acknowledge block
 556                                         [0] u8 count
 557                                         [1] v3s16 pos_0
 558                                 */
 559                                 sendGotBlocks(r.p);
 560                         }
 561                 }
 562
 563                 if(num_processed_meshes > 0)
 564                         g_profiler->graphAdd("num_processed_meshes", num_processed_meshes);
 565         }
 566
 567         /*
 568                 Load fetched media
 569         */
 570         if (m_media_downloader && m_media_downloader->isStarted()) {
 571                 m_media_downloader->step(this);
 572                 if (m_media_downloader->isDone()) {
 573                         received_media();
 574                         delete m_media_downloader;
 575                         m_media_downloader = NULL;
 576                 }
 577         }
 578
 579         /*
 580                 If the server didn't update the inventory in a while, revert
 581                 the local inventory (so the player notices the lag problem
 582                 and knows something is wrong).
 583         */
 584         if(m_inventory_from_server)
 585         {
 586                 float interval = 10.0;
 587                 float count_before = floor(m_inventory_from_server_age / interval);
 588
 589                 m_inventory_from_server_age += dtime;
 590
 591                 float count_after = floor(m_inventory_from_server_age / interval);
 592
 593                 if(count_after != count_before)
 594                 {
 595                         // Do this every <interval> seconds after TOCLIENT_INVENTORY
 596                         // Reset the locally changed inventory to the authoritative inventory
 597                         Player *player = m_env.getLocalPlayer();
 598                         player->inventory = *m_inventory_from_server;
 599                         m_inventory_updated = true;
 600                 }
 601         }
 602
 603         /*
 604                 Update positions of sounds attached to objects
 605         */
 606         {
 607                 for(std::map<int, u16>::iterator
 608                                 i = m_sounds_to_objects.begin();
 609                                 i != m_sounds_to_objects.end(); i++)
 610                 {
 611                         int client_id = i->first;
 612                         u16 object_id = i->second;
 613                         ClientActiveObject *cao = m_env.getActiveObject(object_id);
 614                         if(!cao)
 615                                 continue;
 616                         v3f pos = cao->getPosition();
 617                         m_sound->updateSoundPosition(client_id, pos);
 618                 }
 619         }
 620
 621         /*
 622                 Handle removed remotely initiated sounds
 623         */
 624         m_removed_sounds_check_timer += dtime;
 625         if(m_removed_sounds_check_timer >= 2.32) {
 626                 m_removed_sounds_check_timer = 0;
 627                 // Find removed sounds and clear references to them
 628                 std::vector<s32> removed_server_ids;
 629                 for(std::map<s32, int>::iterator
 630                                 i = m_sounds_server_to_client.begin();
 631                                 i != m_sounds_server_to_client.end();) {
 632                         s32 server_id = i->first;
 633                         int client_id = i->second;
 634                         i++;
 635                         if(!m_sound->soundExists(client_id)) {
 636                                 m_sounds_server_to_client.erase(server_id);
 637                                 m_sounds_client_to_server.erase(client_id);
 638                                 m_sounds_to_objects.erase(client_id);
 639                                 removed_server_ids.push_back(server_id);
 640                         }
 641                 }
 642
 643                 // Sync to server
 644                 if(!removed_server_ids.empty()) {
 645                         sendRemovedSounds(removed_server_ids);
 646                 }
 647         }
 648
 649         // Write server map
 650         if (m_localdb && m_localdb_save_interval.step(dtime,
 651                         m_cache_save_interval)) {
 652                 m_localdb->endSave();
 653                 m_localdb->beginSave();
 654         }
 655 }
 656
 657 bool Client::loadMedia(const std::string &data, const std::string &filename)
 658 {
 659         // Silly irrlicht's const-incorrectness
 660         Buffer<char> data_rw(data.c_str(), data.size());
 661
 662         std::string name;
 663
 664         const char *image_ext[] = {
 665                 ".png", ".jpg", ".bmp", ".tga",
 666                 ".pcx", ".ppm", ".psd", ".wal", ".rgb",
 667                 NULL
 668         };
 669         name = removeStringEnd(filename, image_ext);
 670         if(name != "")
 671         {
 672                 verbosestream<<"Client: Attempting to load image "
 673                 <<"file \""<<filename<<"\""<<std::endl;
 674
 675                 io::IFileSystem *irrfs = m_device->getFileSystem();
 676                 video::IVideoDriver *vdrv = m_device->getVideoDriver();
 677
 678                 // Create an irrlicht memory file
 679                 io::IReadFile *rfile = irrfs->createMemoryReadFile(
 680                                 *data_rw, data_rw.getSize(), "_tempreadfile");
 681
 682                 FATAL_ERROR_IF(!rfile, "Could not create irrlicht memory file.");
 683
 684                 // Read image
 685                 video::IImage *img = vdrv->createImageFromFile(rfile);
 686                 if(!img){
 687                         errorstream<<"Client: Cannot create image from data of "
 688                                         <<"file \""<<filename<<"\""<<std::endl;
 689                         rfile->drop();
 690                         return false;
 691                 }
 692                 else {
 693                         m_tsrc->insertSourceImage(filename, img);
 694                         img->drop();
 695                         rfile->drop();
 696                         return true;
 697                 }
 698         }
 699
 700         const char *sound_ext[] = {
 701                 ".0.ogg", ".1.ogg", ".2.ogg", ".3.ogg", ".4.ogg",
 702                 ".5.ogg", ".6.ogg", ".7.ogg", ".8.ogg", ".9.ogg",
 703                 ".ogg", NULL
 704         };
 705         name = removeStringEnd(filename, sound_ext);
 706         if(name != "")
 707         {
 708                 verbosestream<<"Client: Attempting to load sound "
 709                 <<"file \""<<filename<<"\""<<std::endl;
 710                 m_sound->loadSoundData(name, data);
 711                 return true;
 712         }
 713
 714         const char *model_ext[] = {
 715                 ".x", ".b3d", ".md2", ".obj",
 716                 NULL
 717         };
 718         name = removeStringEnd(filename, model_ext);
 719         if(name != "")
 720         {
 721                 verbosestream<<"Client: Storing model into memory: "
 722                                 <<"\""<<filename<<"\""<<std::endl;
 723                 if(m_mesh_data.count(filename))
 724                         errorstream<<"Multiple models with name \""<<filename.c_str()
 725                                         <<"\" found; replacing previous model"<<std::endl;
 726                 m_mesh_data[filename] = data;
 727                 return true;
 728         }
 729
 730         errorstream<<"Client: Don't know how to load file \""
 731                         <<filename<<"\""<<std::endl;
 732         return false;
 733 }
 734
 735 // Virtual methods from con::PeerHandler
 736 void Client::peerAdded(con::Peer *peer)
 737 {
 738         infostream<<"Client::peerAdded(): peer->id="
 739                         <<peer->id<<std::endl;
 740 }
 741 void Client::deletingPeer(con::Peer *peer, bool timeout)
 742 {
 743         infostream<<"Client::deletingPeer(): "
 744                         "Server Peer is getting deleted "
 745                         <<"(timeout="<<timeout<<")"<<std::endl;
 746 }
 747
 748 /*
 749         u16 command
 750         u16 number of files requested
 751         for each file {
 752                 u16 length of name
 753                 string name
 754         }
 755 */
 756 void Client::request_media(const std::vector<std::string> &file_requests)
 757 {
 758         std::ostringstream os(std::ios_base::binary);
 759         writeU16(os, TOSERVER_REQUEST_MEDIA);
 760         size_t file_requests_size = file_requests.size();
 761
 762         FATAL_ERROR_IF(file_requests_size > 0xFFFF, "Unsupported number of file requests");
 763
 764         // Packet dynamicly resized
 765         NetworkPacket pkt(TOSERVER_REQUEST_MEDIA, 2 + 0);
 766
 767         pkt << (u16) (file_requests_size & 0xFFFF);
 768
 769         for(std::vector<std::string>::const_iterator i = file_requests.begin();
 770                         i != file_requests.end(); ++i) {
 771                 pkt << (*i);
 772         }
 773
 774         Send(&pkt);
 775
 776         infostream << "Client: Sending media request list to server ("
 777                         << file_requests.size() << " files. packet size)" << std::endl;
 778 }
 779
 780 void Client::received_media()
 781 {
 782         NetworkPacket pkt(TOSERVER_RECEIVED_MEDIA, 0);
 783         Send(&pkt);
 784         infostream << "Client: Notifying server that we received all media"
 785                         << std::endl;
 786 }
 787
 788 void Client::initLocalMapSaving(const Address &address,
 789                 const std::string &hostname,
 790                 bool is_local_server)
 791 {
 792         if (!g_settings->getBool("enable_local_map_saving") || is_local_server) {
 793                 return;
 794         }
 795
 796         const std::string world_path = porting::path_user
 797                 + DIR_DELIM + "worlds"
 798                 + DIR_DELIM + "server_"
 799                 + hostname + "_" + to_string(address.getPort());
 800
 801         fs::CreateAllDirs(world_path);
 802
 803         m_localdb = new Database_SQLite3(world_path);
 804         m_localdb->beginSave();
 805         actionstream << "Local map saving started, map will be saved at '" << world_path << "'" << std::endl;
 806 }
 807
 808 void Client::ReceiveAll()
 809 {
 810         DSTACK(__FUNCTION_NAME);
 811         u32 start_ms = porting::getTimeMs();
 812         for(;;)
 813         {
 814                 // Limit time even if there would be huge amounts of data to
 815                 // process
 816                 if(porting::getTimeMs() > start_ms + 100)
 817                         break;
 818
 819                 try {
 820                         Receive();
 821                         g_profiler->graphAdd("client_received_packets", 1);
 822                 }
 823                 catch(con::NoIncomingDataException &e) {
 824                         break;
 825                 }
 826                 catch(con::InvalidIncomingDataException &e) {
 827                         infostream<<"Client::ReceiveAll(): "
 828                                         "InvalidIncomingDataException: what()="
 829                                         <<e.what()<<std::endl;
 830                 }
 831         }
 832 }
 833
 834 void Client::Receive()
 835 {
 836         DSTACK(__FUNCTION_NAME);
 837         NetworkPacket pkt;
 838         m_con.Receive(&pkt);
 839         ProcessData(&pkt);
 840 }
 841
 842 inline void Client::handleCommand(NetworkPacket* pkt)
 843 {
 844         const ToClientCommandHandler& opHandle = toClientCommandTable[pkt->getCommand()];
 845         (this->*opHandle.handler)(pkt);
 846 }
 847
 848 /*
 849         sender_peer_id given to this shall be quaranteed to be a valid peer
 850 */
 851 void Client::ProcessData(NetworkPacket *pkt)
 852 {
 853         DSTACK(__FUNCTION_NAME);
 854
 855         ToClientCommand command = (ToClientCommand) pkt->getCommand();
 856         u32 sender_peer_id = pkt->getPeerId();
 857
 858         //infostream<<"Client: received command="<<command<<std::endl;
 859         m_packetcounter.add((u16)command);
 860
 861         /*
 862                 If this check is removed, be sure to change the queue
 863                 system to know the ids
 864         */
 865         if(sender_peer_id != PEER_ID_SERVER) {
 866                 infostream << "Client::ProcessData(): Discarding data not "
 867                         "coming from server: peer_id=" << sender_peer_id
 868                         << std::endl;
 869                 return;
 870         }
 871
 872         // Command must be handled into ToClientCommandHandler
 873         if (command >= TOCLIENT_NUM_MSG_TYPES) {
 874                 infostream << "Client: Ignoring unknown command "
 875                         << command << std::endl;
 876         }
 877
 878         /*
 879          * Those packets are handled before m_server_ser_ver is set, it's normal
 880          * But we must use the new ToClientConnectionState in the future,
 881          * as a byte mask
 882          */
 883         if(toClientCommandTable[command].state == TOCLIENT_STATE_NOT_CONNECTED) {
 884                 handleCommand(pkt);
 885                 return;
 886         }
 887
 888         if(m_server_ser_ver == SER_FMT_VER_INVALID) {
 889                 infostream << "Client: Server serialization"
 890                                 " format invalid or not initialized."
 891                                 " Skipping incoming command=" << command << std::endl;
 892                 return;
 893         }
 894
 895         /*
 896           Handle runtime commands
 897         */
 898
 899         handleCommand(pkt);
 900 }
 901
 902 void Client::Send(NetworkPacket* pkt)
 903 {
 904         m_con.Send(PEER_ID_SERVER,
 905                 serverCommandFactoryTable[pkt->getCommand()].channel,
 906                 pkt,
 907                 serverCommandFactoryTable[pkt->getCommand()].reliable);
 908 }
 909
 910 void Client::interact(u8 action, const PointedThing& pointed)
 911 {
 912         if(m_state != LC_Ready) {
 913                 errorstream << "Client::interact() "
 914                                 "Canceled (not connected)"
 915                                 << std::endl;
 916                 return;
 917         }
 918
 919         /*
 920                 [0] u16 command
 921                 [2] u8 action
 922                 [3] u16 item
 923                 [5] u32 length of the next item
 924                 [9] serialized PointedThing
 925                 actions:
 926                 0: start digging (from undersurface) or use
 927                 1: stop digging (all parameters ignored)
 928                 2: digging completed
 929                 3: place block or item (to abovesurface)
 930                 4: use item
 931         */
 932
 933         NetworkPacket pkt(TOSERVER_INTERACT, 1 + 2 + 0);
 934
 935         pkt << action;
 936         pkt << (u16)getPlayerItem();
 937
 938         std::ostringstream tmp_os(std::ios::binary);
 939         pointed.serialize(tmp_os);
 940
 941         pkt.putLongString(tmp_os.str());
 942
 943         Send(&pkt);
 944 }
 945
 946 void Client::sendLegacyInit(const char* playerName, const char* playerPassword)
 947 {
 948         NetworkPacket pkt(TOSERVER_INIT_LEGACY,
 949                         1 + PLAYERNAME_SIZE + PASSWORD_SIZE + 2 + 2);
 950
 951         pkt << (u8) SER_FMT_VER_HIGHEST_READ;
 952         pkt.putRawString(playerName,PLAYERNAME_SIZE);
 953         pkt.putRawString(playerPassword, PASSWORD_SIZE);
 954         pkt << (u16) CLIENT_PROTOCOL_VERSION_MIN << (u16) CLIENT_PROTOCOL_VERSION_MAX;
 955
 956         Send(&pkt);
 957 }
 958
 959 void Client::sendDeletedBlocks(std::vector<v3s16> &blocks)
 960 {
 961         NetworkPacket pkt(TOSERVER_DELETEDBLOCKS, 1 + sizeof(v3s16) * blocks.size());
 962
 963         pkt << (u8) blocks.size();
 964
 965         u32 k = 0;
 966         for(std::vector<v3s16>::iterator
 967                         j = blocks.begin();
 968                         j != blocks.end(); ++j) {
 969                 pkt << *j;
 970                 k++;
 971         }
 972
 973         Send(&pkt);
 974 }
 975
 976 void Client::sendGotBlocks(v3s16 block)
 977 {
 978         NetworkPacket pkt(TOSERVER_GOTBLOCKS, 1 + 6);
 979         pkt << (u8) 1 << block;
 980         Send(&pkt);
 981 }
 982
 983 void Client::sendRemovedSounds(std::vector<s32> &soundList)
 984 {
 985         size_t server_ids = soundList.size();
 986         assert(server_ids <= 0xFFFF);
 987
 988         NetworkPacket pkt(TOSERVER_REMOVED_SOUNDS, 2 + server_ids * 4);
 989
 990         pkt << (u16) (server_ids & 0xFFFF);
 991
 992         for(std::vector<s32>::iterator i = soundList.begin();
 993                         i != soundList.end(); i++)
 994                 pkt << *i;
 995
 996         Send(&pkt);
 997 }
 998
 999 void Client::sendNodemetaFields(v3s16 p, const std::string &formname,
1000                 const std::map<std::string, std::string> &fields)
1001 {
1002         size_t fields_size = fields.size();
1003
1004         FATAL_ERROR_IF(fields_size > 0xFFFF, "Unsupported number of nodemeta fields");
1005
1006         NetworkPacket pkt(TOSERVER_NODEMETA_FIELDS, 0);
1007
1008         pkt << p << formname << (u16) (fields_size & 0xFFFF);
1009
1010         for(std::map<std::string, std::string>::const_iterator
1011                         i = fields.begin(); i != fields.end(); i++) {
1012                 const std::string &name = i->first;
1013                 const std::string &value = i->second;
1014                 pkt << name;
1015                 pkt.putLongString(value);
1016         }
1017
1018         Send(&pkt);
1019 }
1020
1021 void Client::sendInventoryFields(const std::string &formname,
1022                 const std::map<std::string, std::string> &fields)
1023 {
1024         size_t fields_size = fields.size();
1025         FATAL_ERROR_IF(fields_size > 0xFFFF, "Unsupported number of inventory fields");
1026
1027         NetworkPacket pkt(TOSERVER_INVENTORY_FIELDS, 0);
1028         pkt << formname << (u16) (fields_size & 0xFFFF);
1029
1030         for(std::map<std::string, std::string>::const_iterator
1031                         i = fields.begin(); i != fields.end(); i++) {
1032                 const std::string &name  = i->first;
1033                 const std::string &value = i->second;
1034                 pkt << name;
1035                 pkt.putLongString(value);
1036         }
1037
1038         Send(&pkt);
1039 }
1040
1041 void Client::sendInventoryAction(InventoryAction *a)
1042 {
1043         std::ostringstream os(std::ios_base::binary);
1044
1045         a->serialize(os);
1046
1047         // Make data buffer
1048         std::string s = os.str();
1049
1050         NetworkPacket pkt(TOSERVER_INVENTORY_ACTION, s.size());
1051         pkt.putRawString(s.c_str(),s.size());
1052
1053         Send(&pkt);
1054 }
1055
1056 void Client::sendChatMessage(const std::wstring &message)
1057 {
1058         NetworkPacket pkt(TOSERVER_CHAT_MESSAGE, 2 + message.size() * sizeof(u16));
1059
1060         pkt << message;
1061
1062         Send(&pkt);
1063 }
1064
1065 void Client::sendChangePassword(const std::wstring &oldpassword,
1066         const std::wstring &newpassword)
1067 {
1068         Player *player = m_env.getLocalPlayer();
1069         if(player == NULL)
1070                 return;
1071
1072         std::string playername = player->getName();
1073         std::string oldpwd = translatePassword(playername, oldpassword);
1074         std::string newpwd = translatePassword(playername, newpassword);
1075
1076         NetworkPacket pkt(TOSERVER_PASSWORD_LEGACY, 2 * PASSWORD_SIZE);
1077
1078         for(u8 i = 0; i < PASSWORD_SIZE; i++) {
1079                 pkt << (u8) (i < oldpwd.length() ? oldpwd[i] : 0);
1080         }
1081
1082         for(u8 i = 0; i < PASSWORD_SIZE; i++) {
1083                 pkt << (u8) (i < newpwd.length() ? newpwd[i] : 0);
1084         }
1085
1086         Send(&pkt);
1087 }
1088
1089
1090 void Client::sendDamage(u8 damage)
1091 {
1092         DSTACK(__FUNCTION_NAME);
1093
1094         NetworkPacket pkt(TOSERVER_DAMAGE, sizeof(u8));
1095         pkt << damage;
1096         Send(&pkt);
1097 }
1098
1099 void Client::sendBreath(u16 breath)
1100 {
1101         DSTACK(__FUNCTION_NAME);
1102
1103         NetworkPacket pkt(TOSERVER_BREATH, sizeof(u16));
1104         pkt << breath;
1105         Send(&pkt);
1106 }
1107
1108 void Client::sendRespawn()
1109 {
1110         DSTACK(__FUNCTION_NAME);
1111
1112         NetworkPacket pkt(TOSERVER_RESPAWN, 0);
1113         Send(&pkt);
1114 }
1115
1116 void Client::sendReady()
1117 {
1118         DSTACK(__FUNCTION_NAME);
1119
1120         NetworkPacket pkt(TOSERVER_CLIENT_READY,
1121                         1 + 1 + 1 + 1 + 2 + sizeof(char) * strlen(g_version_hash));
1122
1123         pkt << (u8) VERSION_MAJOR << (u8) VERSION_MINOR << (u8) VERSION_PATCH
1124                 << (u8) 0 << (u16) strlen(g_version_hash);
1125
1126         pkt.putRawString(g_version_hash, (u16) strlen(g_version_hash));
1127         Send(&pkt);
1128 }
1129
1130 void Client::sendPlayerPos()
1131 {
1132         LocalPlayer *myplayer = m_env.getLocalPlayer();
1133         if(myplayer == NULL)
1134                 return;
1135
1136         // Save bandwidth by only updating position when something changed
1137         if(myplayer->last_position        == myplayer->getPosition() &&
1138                         myplayer->last_speed      == myplayer->getSpeed()    &&
1139                         myplayer->last_pitch      == myplayer->getPitch()    &&
1140                         myplayer->last_yaw        == myplayer->getYaw()      &&
1141                         myplayer->last_keyPressed == myplayer->keyPressed)
1142                 return;
1143
1144         myplayer->last_position   = myplayer->getPosition();
1145         myplayer->last_speed      = myplayer->getSpeed();
1146         myplayer->last_pitch      = myplayer->getPitch();
1147         myplayer->last_yaw        = myplayer->getYaw();
1148         myplayer->last_keyPressed = myplayer->keyPressed;
1149
1150         u16 our_peer_id;
1151         {
1152                 //JMutexAutoLock lock(m_con_mutex); //bulk comment-out
1153                 our_peer_id = m_con.GetPeerID();
1154         }
1155
1156         // Set peer id if not set already
1157         if(myplayer->peer_id == PEER_ID_INEXISTENT)
1158                 myplayer->peer_id = our_peer_id;
1159
1160         assert(myplayer->peer_id == our_peer_id);
1161
1162         v3f pf         = myplayer->getPosition();
1163         v3f sf         = myplayer->getSpeed();
1164         s32 pitch      = myplayer->getPitch() * 100;
1165         s32 yaw        = myplayer->getYaw() * 100;
1166         u32 keyPressed = myplayer->keyPressed;
1167
1168         v3s32 position(pf.X*100, pf.Y*100, pf.Z*100);
1169         v3s32 speed(sf.X*100, sf.Y*100, sf.Z*100);
1170         /*
1171                 Format:
1172                 [0] v3s32 position*100
1173                 [12] v3s32 speed*100
1174                 [12+12] s32 pitch*100
1175                 [12+12+4] s32 yaw*100
1176                 [12+12+4+4] u32 keyPressed
1177         */
1178
1179         NetworkPacket pkt(TOSERVER_PLAYERPOS, 12 + 12 + 4 + 4 + 4);
1180
1181         pkt << position << speed << pitch << yaw << keyPressed;
1182
1183         Send(&pkt);
1184 }
1185
1186 void Client::sendPlayerItem(u16 item)
1187 {
1188         Player *myplayer = m_env.getLocalPlayer();
1189         if(myplayer == NULL)
1190                 return;
1191
1192         u16 our_peer_id = m_con.GetPeerID();
1193
1194         // Set peer id if not set already
1195         if(myplayer->peer_id == PEER_ID_INEXISTENT)
1196                 myplayer->peer_id = our_peer_id;
1197         assert(myplayer->peer_id == our_peer_id);
1198
1199         NetworkPacket pkt(TOSERVER_PLAYERITEM, 2);
1200
1201         pkt << item;
1202
1203         Send(&pkt);
1204 }
1205
1206 void Client::removeNode(v3s16 p)
1207 {
1208         std::map<v3s16, MapBlock*> modified_blocks;
1209
1210         try {
1211                 m_env.getMap().removeNodeAndUpdate(p, modified_blocks);
1212         }
1213         catch(InvalidPositionException &e) {
1214         }
1215
1216         for(std::map<v3s16, MapBlock *>::iterator
1217                         i = modified_blocks.begin();
1218                         i != modified_blocks.end(); ++i) {
1219                 addUpdateMeshTaskWithEdge(i->first, false, true);
1220         }
1221 }
1222
1223 void Client::addNode(v3s16 p, MapNode n, bool remove_metadata)
1224 {
1225         //TimeTaker timer1("Client::addNode()");
1226
1227         std::map<v3s16, MapBlock*> modified_blocks;
1228
1229         try {
1230                 //TimeTaker timer3("Client::addNode(): addNodeAndUpdate");
1231                 m_env.getMap().addNodeAndUpdate(p, n, modified_blocks, remove_metadata);
1232         }
1233         catch(InvalidPositionException &e) {
1234         }
1235
1236         for(std::map<v3s16, MapBlock *>::iterator
1237                         i = modified_blocks.begin();
1238                         i != modified_blocks.end(); ++i) {
1239                 addUpdateMeshTaskWithEdge(i->first, false, true);
1240         }
1241 }
1242
1243 void Client::setPlayerControl(PlayerControl &control)
1244 {
1245         LocalPlayer *player = m_env.getLocalPlayer();
1246         assert(player != NULL);
1247         player->control = control;
1248 }
1249
1250 void Client::selectPlayerItem(u16 item)
1251 {
1252         m_playeritem = item;
1253         m_inventory_updated = true;
1254         sendPlayerItem(item);
1255 }
1256
1257 // Returns true if the inventory of the local player has been
1258 // updated from the server. If it is true, it is set to false.
1259 bool Client::getLocalInventoryUpdated()
1260 {
1261         bool updated = m_inventory_updated;
1262         m_inventory_updated = false;
1263         return updated;
1264 }
1265
1266 // Copies the inventory of the local player to parameter
1267 void Client::getLocalInventory(Inventory &dst)
1268 {
1269         Player *player = m_env.getLocalPlayer();
1270         assert(player != NULL);
1271         dst = player->inventory;
1272 }
1273
1274 Inventory* Client::getInventory(const InventoryLocation &loc)
1275 {
1276         switch(loc.type){
1277         case InventoryLocation::UNDEFINED:
1278         {}
1279         break;
1280         case InventoryLocation::CURRENT_PLAYER:
1281         {
1282                 Player *player = m_env.getLocalPlayer();
1283                 assert(player != NULL);
1284                 return &player->inventory;
1285         }
1286         break;
1287         case InventoryLocation::PLAYER:
1288         {
1289                 Player *player = m_env.getPlayer(loc.name.c_str());
1290                 if(!player)
1291                         return NULL;
1292                 return &player->inventory;
1293         }
1294         break;
1295         case InventoryLocation::NODEMETA:
1296         {
1297                 NodeMetadata *meta = m_env.getMap().getNodeMetadata(loc.p);
1298                 if(!meta)
1299                         return NULL;
1300                 return meta->getInventory();
1301         }
1302         break;
1303         case InventoryLocation::DETACHED:
1304         {
1305                 if(m_detached_inventories.count(loc.name) == 0)
1306                         return NULL;
1307                 return m_detached_inventories[loc.name];
1308         }
1309         break;
1310         default:
1311                 FATAL_ERROR("Invalid inventory location type.");
1312                 break;
1313         }
1314         return NULL;
1315 }
1316
1317 void Client::inventoryAction(InventoryAction *a)
1318 {
1319         /*
1320                 Send it to the server
1321         */
1322         sendInventoryAction(a);
1323
1324         /*
1325                 Predict some local inventory changes
1326         */
1327         a->clientApply(this, this);
1328
1329         // Remove it
1330         delete a;
1331 }
1332
1333 ClientActiveObject * Client::getSelectedActiveObject(
1334                 f32 max_d,
1335                 v3f from_pos_f_on_map,
1336                 core::line3d<f32> shootline_on_map
1337         )
1338 {
1339         std::vector<DistanceSortedActiveObject> objects;
1340
1341         m_env.getActiveObjects(from_pos_f_on_map, max_d, objects);
1342
1343         // Sort them.
1344         // After this, the closest object is the first in the array.
1345         std::sort(objects.begin(), objects.end());
1346
1347         for(unsigned int i=0; i<objects.size(); i++)
1348         {
1349                 ClientActiveObject *obj = objects[i].obj;
1350
1351                 core::aabbox3d<f32> *selection_box = obj->getSelectionBox();
1352                 if(selection_box == NULL)
1353                         continue;
1354
1355                 v3f pos = obj->getPosition();
1356
1357                 core::aabbox3d<f32> offsetted_box(
1358                                 selection_box->MinEdge + pos,
1359                                 selection_box->MaxEdge + pos
1360                 );
1361
1362                 if(offsetted_box.intersectsWithLine(shootline_on_map))
1363                 {
1364                         return obj;
1365                 }
1366         }
1367
1368         return NULL;
1369 }
1370
1371 std::list<std::string> Client::getConnectedPlayerNames()
1372 {
1373         return m_env.getPlayerNames();
1374 }
1375
1376 float Client::getAnimationTime()
1377 {
1378         return m_animation_time;
1379 }
1380
1381 int Client::getCrackLevel()
1382 {
1383         return m_crack_level;
1384 }
1385
1386 void Client::setHighlighted(v3s16 pos, bool show_highlighted)
1387 {
1388         m_show_highlighted = show_highlighted;
1389         v3s16 old_highlighted_pos = m_highlighted_pos;
1390         m_highlighted_pos = pos;
1391         addUpdateMeshTaskForNode(old_highlighted_pos, false, true);
1392         addUpdateMeshTaskForNode(m_highlighted_pos, false, true);
1393 }
1394
1395 void Client::setCrack(int level, v3s16 pos)
1396 {
1397         int old_crack_level = m_crack_level;
1398         v3s16 old_crack_pos = m_crack_pos;
1399
1400         m_crack_level = level;
1401         m_crack_pos = pos;
1402
1403         if(old_crack_level >= 0 && (level < 0 || pos != old_crack_pos))
1404         {
1405                 // remove old crack
1406                 addUpdateMeshTaskForNode(old_crack_pos, false, true);
1407         }
1408         if(level >= 0 && (old_crack_level < 0 || pos != old_crack_pos))
1409         {
1410                 // add new crack
1411                 addUpdateMeshTaskForNode(pos, false, true);
1412         }
1413 }
1414
1415 u16 Client::getHP()
1416 {
1417         Player *player = m_env.getLocalPlayer();
1418         assert(player != NULL);
1419         return player->hp;
1420 }
1421
1422 u16 Client::getBreath()
1423 {
1424         Player *player = m_env.getLocalPlayer();
1425         assert(player != NULL);
1426         return player->getBreath();
1427 }
1428
1429 bool Client::getChatMessage(std::wstring &message)
1430 {
1431         if(m_chat_queue.size() == 0)
1432                 return false;
1433         message = m_chat_queue.front();
1434         m_chat_queue.pop();
1435         return true;
1436 }
1437
1438 void Client::typeChatMessage(const std::wstring &message)
1439 {
1440         // Discard empty line
1441         if(message == L"")
1442                 return;
1443
1444         // Send to others
1445         sendChatMessage(message);
1446
1447         // Show locally
1448         if (message[0] == L'/')
1449         {
1450                 m_chat_queue.push((std::wstring)L"issued command: " + message);
1451         }
1452         else
1453         {
1454                 LocalPlayer *player = m_env.getLocalPlayer();
1455                 assert(player != NULL);
1456                 std::wstring name = narrow_to_wide(player->getName());
1457                 m_chat_queue.push((std::wstring)L"<" + name + L"> " + message);
1458         }
1459 }
1460
1461 void Client::addUpdateMeshTask(v3s16 p, bool ack_to_server, bool urgent)
1462 {
1463         MapBlock *b = m_env.getMap().getBlockNoCreateNoEx(p);
1464         if(b == NULL)
1465                 return;
1466
1467         /*
1468                 Create a task to update the mesh of the block
1469         */
1470
1471         MeshMakeData *data = new MeshMakeData(this, m_cache_enable_shaders);
1472
1473         {
1474                 //TimeTaker timer("data fill");
1475                 // Release: ~0ms
1476                 // Debug: 1-6ms, avg=2ms
1477                 data->fill(b);
1478                 data->setCrack(m_crack_level, m_crack_pos);
1479                 data->setHighlighted(m_highlighted_pos, m_show_highlighted);
1480                 data->setSmoothLighting(m_cache_smooth_lighting);
1481         }
1482
1483         // Add task to queue
1484         m_mesh_update_thread.m_queue_in.addBlock(p, data, ack_to_server, urgent);
1485 }
1486
1487 void Client::addUpdateMeshTaskWithEdge(v3s16 blockpos, bool ack_to_server, bool urgent)
1488 {
1489         try{
1490                 addUpdateMeshTask(blockpos, ack_to_server, urgent);
1491         }
1492         catch(InvalidPositionException &e){}
1493
1494         // Leading edge
1495         for (int i=0;i<6;i++)
1496         {
1497                 try{
1498                         v3s16 p = blockpos + g_6dirs[i];
1499                         addUpdateMeshTask(p, false, urgent);
1500                 }
1501                 catch(InvalidPositionException &e){}
1502         }
1503 }
1504
1505 void Client::addUpdateMeshTaskForNode(v3s16 nodepos, bool ack_to_server, bool urgent)
1506 {
1507         {
1508                 v3s16 p = nodepos;
1509                 infostream<<"Client::addUpdateMeshTaskForNode(): "
1510                                 <<"("<<p.X<<","<<p.Y<<","<<p.Z<<")"
1511                                 <<std::endl;
1512         }
1513
1514         v3s16 blockpos          = getNodeBlockPos(nodepos);
1515         v3s16 blockpos_relative = blockpos * MAP_BLOCKSIZE;
1516
1517         try{
1518                 addUpdateMeshTask(blockpos, ack_to_server, urgent);
1519         }
1520         catch(InvalidPositionException &e) {}
1521
1522         // Leading edge
1523         if(nodepos.X == blockpos_relative.X){
1524                 try{
1525                         v3s16 p = blockpos + v3s16(-1,0,0);
1526                         addUpdateMeshTask(p, false, urgent);
1527                 }
1528                 catch(InvalidPositionException &e){}
1529         }
1530
1531         if(nodepos.Y == blockpos_relative.Y){
1532                 try{
1533                         v3s16 p = blockpos + v3s16(0,-1,0);
1534                         addUpdateMeshTask(p, false, urgent);
1535                 }
1536                 catch(InvalidPositionException &e){}
1537         }
1538
1539         if(nodepos.Z == blockpos_relative.Z){
1540                 try{
1541                         v3s16 p = blockpos + v3s16(0,0,-1);
1542                         addUpdateMeshTask(p, false, urgent);
1543                 }
1544                 catch(InvalidPositionException &e){}
1545         }
1546 }
1547
1548 ClientEvent Client::getClientEvent()
1549 {
1550         ClientEvent event;
1551         if(m_client_event_queue.size() == 0) {
1552                 event.type = CE_NONE;
1553         }
1554         else {
1555                 event = m_client_event_queue.front();
1556                 m_client_event_queue.pop();
1557         }
1558         return event;
1559 }
1560
1561 float Client::mediaReceiveProgress()
1562 {
1563         if (m_media_downloader)
1564                 return m_media_downloader->getProgress();
1565         else
1566                 return 1.0; // downloader only exists when not yet done
1567 }
1568
1569 typedef struct TextureUpdateArgs {
1570         IrrlichtDevice *device;
1571         gui::IGUIEnvironment *guienv;
1572         u32 last_time_ms;
1573         u16 last_percent;
1574         const wchar_t* text_base;
1575 } TextureUpdateArgs;
1576
1577 void texture_update_progress(void *args, u32 progress, u32 max_progress)
1578 {
1579                 TextureUpdateArgs* targs = (TextureUpdateArgs*) args;
1580                 u16 cur_percent = ceil(progress / (double) max_progress * 100.);
1581
1582                 // update the loading menu -- if neccessary
1583                 bool do_draw = false;
1584                 u32 time_ms = targs->last_time_ms;
1585                 if (cur_percent != targs->last_percent) {
1586                         targs->last_percent = cur_percent;
1587                         time_ms = getTimeMs();
1588                         // only draw when the user will notice something:
1589                         do_draw = (time_ms - targs->last_time_ms > 100);
1590                 }
1591
1592                 if (do_draw) {
1593                         targs->last_time_ms = time_ms;
1594                         std::basic_stringstream<wchar_t> strm;
1595                         strm << targs->text_base << " " << targs->last_percent << "%...";
1596                         draw_load_screen(strm.str(), targs->device, targs->guienv, 0,
1597                                 72 + (u16) ((18. / 100.) * (double) targs->last_percent));
1598                 }
1599 }
1600
1601 void Client::afterContentReceived(IrrlichtDevice *device)
1602 {
1603         infostream<<"Client::afterContentReceived() started"<<std::endl;
1604         assert(m_itemdef_received); // pre-condition
1605         assert(m_nodedef_received); // pre-condition
1606         assert(mediaReceived()); // pre-condition
1607
1608         const wchar_t* text = wgettext("Loading textures...");
1609
1610         // Clear cached pre-scaled 2D GUI images, as this cache
1611         // might have images with the same name but different
1612         // content from previous sessions.
1613         guiScalingCacheClear(device->getVideoDriver());
1614
1615         // Rebuild inherited images and recreate textures
1616         infostream<<"- Rebuilding images and textures"<<std::endl;
1617         draw_load_screen(text,device, guienv, 0, 70);
1618         m_tsrc->rebuildImagesAndTextures();
1619         delete[] text;
1620
1621         // Rebuild shaders
1622         infostream<<"- Rebuilding shaders"<<std::endl;
1623         text = wgettext("Rebuilding shaders...");
1624         draw_load_screen(text, device, guienv, 0, 71);
1625         m_shsrc->rebuildShaders();
1626         delete[] text;
1627
1628         // Update node aliases
1629         infostream<<"- Updating node aliases"<<std::endl;
1630         text = wgettext("Initializing nodes...");
1631         draw_load_screen(text, device, guienv, 0, 72);
1632         m_nodedef->updateAliases(m_itemdef);
1633         m_nodedef->setNodeRegistrationStatus(true);
1634         m_nodedef->runNodeResolverCallbacks();
1635         delete[] text;
1636
1637         // Update node textures and assign shaders to each tile
1638         infostream<<"- Updating node textures"<<std::endl;
1639         TextureUpdateArgs tu_args;
1640         tu_args.device = device;
1641         tu_args.guienv = guienv;
1642         tu_args.last_time_ms = getTimeMs();
1643         tu_args.last_percent = 0;
1644         tu_args.text_base =  wgettext("Initializing nodes");
1645         m_nodedef->updateTextures(this, texture_update_progress, &tu_args);
1646         delete[] tu_args.text_base;
1647
1648         // Preload item textures and meshes if configured to
1649         if(g_settings->getBool("preload_item_visuals"))
1650         {
1651                 verbosestream<<"Updating item textures and meshes"<<std::endl;
1652                 text = wgettext("Item textures...");
1653                 draw_load_screen(text, device, guienv, 0, 0);
1654                 std::set<std::string> names = m_itemdef->getAll();
1655                 size_t size = names.size();
1656                 size_t count = 0;
1657                 int percent = 0;
1658                 for(std::set<std::string>::const_iterator
1659                                 i = names.begin(); i != names.end(); ++i)
1660                 {
1661                         // Asking for these caches the result
1662                         m_itemdef->getInventoryTexture(*i, this);
1663                         m_itemdef->getWieldMesh(*i, this);
1664                         count++;
1665                         percent = (count * 100 / size * 0.2) + 80;
1666                         draw_load_screen(text, device, guienv, 0, percent);
1667                 }
1668                 delete[] text;
1669         }
1670
1671         // Start mesh update thread after setting up content definitions
1672         infostream<<"- Starting mesh update thread"<<std::endl;
1673         m_mesh_update_thread.Start();
1674
1675         m_state = LC_Ready;
1676         sendReady();
1677         text = wgettext("Done!");
1678         draw_load_screen(text, device, guienv, 0, 100);
1679         infostream<<"Client::afterContentReceived() done"<<std::endl;
1680         delete[] text;
1681 }
1682
1683 float Client::getRTT(void)
1684 {
1685         return m_con.getPeerStat(PEER_ID_SERVER,con::AVG_RTT);
1686 }
1687
1688 float Client::getCurRate(void)
1689 {
1690         return ( m_con.getLocalStat(con::CUR_INC_RATE) +
1691                         m_con.getLocalStat(con::CUR_DL_RATE));
1692 }
1693
1694 float Client::getAvgRate(void)
1695 {
1696         return ( m_con.getLocalStat(con::AVG_INC_RATE) +
1697                         m_con.getLocalStat(con::AVG_DL_RATE));
1698 }
1699
1700 void Client::makeScreenshot(IrrlichtDevice *device)
1701 {
1702         irr::video::IVideoDriver *driver = device->getVideoDriver();
1703         irr::video::IImage* const raw_image = driver->createScreenShot();
1704
1705         if (!raw_image)
1706                 return;
1707
1708         time_t t = time(NULL);
1709         struct tm *tm = localtime(&t);
1710
1711         char timetstamp_c[64];
1712         strftime(timetstamp_c, sizeof(timetstamp_c), "%Y%m%d_%H%M%S", tm);
1713
1714         std::string filename_base = g_settings->get("screenshot_path")
1715                         + DIR_DELIM
1716                         + std::string("screenshot_")
1717                         + std::string(timetstamp_c);
1718         std::string filename_ext = ".png";
1719         std::string filename;
1720
1721         // Try to find a unique filename
1722         unsigned serial = 0;
1723
1724         while (serial < SCREENSHOT_MAX_SERIAL_TRIES) {
1725                 filename = filename_base + (serial > 0 ? ("_" + itos(serial)) : "") + filename_ext;
1726                 std::ifstream tmp(filename.c_str());
1727                 if (!tmp.good())
1728                         break;  // File did not apparently exist, we'll go with it
1729                 serial++;
1730         }
1731
1732         if (serial == SCREENSHOT_MAX_SERIAL_TRIES) {
1733                 infostream << "Could not find suitable filename for screenshot" << std::endl;
1734         } else {
1735                 irr::video::IImage* const image =
1736                                 driver->createImage(video::ECF_R8G8B8, raw_image->getDimension());
1737
1738                 if (image) {
1739                         raw_image->copyTo(image);
1740
1741                         std::ostringstream sstr;
1742                         if (driver->writeImageToFile(image, filename.c_str())) {
1743                                 sstr << "Saved screenshot to '" << filename << "'";
1744                         } else {
1745                                 sstr << "Failed to save screenshot '" << filename << "'";
1746                         }
1747                         m_chat_queue.push(narrow_to_wide(sstr.str()));
1748                         infostream << sstr.str() << std::endl;
1749                         image->drop();
1750                 }
1751         }
1752
1753         raw_image->drop();
1754 }
1755
1756 // IGameDef interface
1757 // Under envlock
1758 IItemDefManager* Client::getItemDefManager()
1759 {
1760         return m_itemdef;
1761 }
1762 INodeDefManager* Client::getNodeDefManager()
1763 {
1764         return m_nodedef;
1765 }
1766 ICraftDefManager* Client::getCraftDefManager()
1767 {
1768         return NULL;
1769         //return m_craftdef;
1770 }
1771 ITextureSource* Client::getTextureSource()
1772 {
1773         return m_tsrc;
1774 }
1775 IShaderSource* Client::getShaderSource()
1776 {
1777         return m_shsrc;
1778 }
1779 scene::ISceneManager* Client::getSceneManager()
1780 {
1781         return m_device->getSceneManager();
1782 }
1783 u16 Client::allocateUnknownNodeId(const std::string &name)
1784 {
1785         errorstream << "Client::allocateUnknownNodeId(): "
1786                         << "Client cannot allocate node IDs" << std::endl;
1787         FATAL_ERROR("Client allocated unknown node");
1788
1789         return CONTENT_IGNORE;
1790 }
1791 ISoundManager* Client::getSoundManager()
1792 {
1793         return m_sound;
1794 }
1795 MtEventManager* Client::getEventManager()
1796 {
1797         return m_event;
1798 }
1799
1800 ParticleManager* Client::getParticleManager()
1801 {
1802         return &m_particle_manager;
1803 }
1804
1805 scene::IAnimatedMesh* Client::getMesh(const std::string &filename)
1806 {
1807         std::map<std::string, std::string>::const_iterator i =
1808                         m_mesh_data.find(filename);
1809         if(i == m_mesh_data.end()){
1810                 errorstream<<"Client::getMesh(): Mesh not found: \""<<filename<<"\""
1811                                 <<std::endl;
1812                 return NULL;
1813         }
1814         const std::string &data    = i->second;
1815         scene::ISceneManager *smgr = m_device->getSceneManager();
1816
1817         // Create the mesh, remove it from cache and return it
1818         // This allows unique vertex colors and other properties for each instance
1819         Buffer<char> data_rw(data.c_str(), data.size()); // Const-incorrect Irrlicht
1820         io::IFileSystem *irrfs = m_device->getFileSystem();
1821         io::IReadFile *rfile   = irrfs->createMemoryReadFile(
1822                         *data_rw, data_rw.getSize(), filename.c_str());
1823         FATAL_ERROR_IF(!rfile, "Could not create/open RAM file");
1824
1825         scene::IAnimatedMesh *mesh = smgr->getMesh(rfile);
1826         rfile->drop();
1827         // NOTE: By playing with Irrlicht refcounts, maybe we could cache a bunch
1828         // of uniquely named instances and re-use them
1829         mesh->grab();
1830         smgr->getMeshCache()->removeMesh(mesh);
1831         return mesh;
1832 }