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 #include "guiscalingfilter.h"
  53
  54 extern gui::IGUIEnvironment* guienv;
  55
  56 /*
  57         QueuedMeshUpdate
  58 */
  59
  60 QueuedMeshUpdate::QueuedMeshUpdate():
  61         p(-1337,-1337,-1337),
  62         data(NULL),
  63         ack_block_to_server(false)
  64 {
  65 }
  66
  67 QueuedMeshUpdate::~QueuedMeshUpdate()
  68 {
  69         if(data)
  70                 delete data;
  71 }
  72
  73 /*
  74         MeshUpdateQueue
  75 */
  76
  77 MeshUpdateQueue::MeshUpdateQueue()
  78 {
  79 }
  80
  81 MeshUpdateQueue::~MeshUpdateQueue()
  82 {
  83         JMutexAutoLock lock(m_mutex);
  84
  85         for(std::vector<QueuedMeshUpdate*>::iterator
  86                         i = m_queue.begin();
  87                         i != m_queue.end(); i++)
  88         {
  89                 QueuedMeshUpdate *q = *i;
  90                 delete q;
  91         }
  92 }
  93
  94 /*
  95         peer_id=0 adds with nobody to send to
  96 */
  97 void MeshUpdateQueue::addBlock(v3s16 p, MeshMakeData *data, bool ack_block_to_server, bool urgent)
  98 {
  99         DSTACK(__FUNCTION_NAME);
 100
 101         assert(data);   // pre-condition
 102
 103         JMutexAutoLock lock(m_mutex);
 104
 105         if(urgent)
 106                 m_urgents.insert(p);
 107
 108         /*
 109                 Find if block is already in queue.
 110                 If it is, update the data and quit.
 111         */
 112         for(std::vector<QueuedMeshUpdate*>::iterator
 113                         i = m_queue.begin();
 114                         i != m_queue.end(); i++)
 115         {
 116                 QueuedMeshUpdate *q = *i;
 117                 if(q->p == p)
 118                 {
 119                         if(q->data)
 120                                 delete q->data;
 121                         q->data = data;
 122                         if(ack_block_to_server)
 123                                 q->ack_block_to_server = true;
 124                         return;
 125                 }
 126         }
 127
 128         /*
 129                 Add the block
 130         */
 131         QueuedMeshUpdate *q = new QueuedMeshUpdate;
 132         q->p = p;
 133         q->data = data;
 134         q->ack_block_to_server = ack_block_to_server;
 135         m_queue.push_back(q);
 136 }
 137
 138 // Returned pointer must be deleted
 139 // Returns NULL if queue is empty
 140 QueuedMeshUpdate * MeshUpdateQueue::pop()
 141 {
 142         JMutexAutoLock lock(m_mutex);
 143
 144         bool must_be_urgent = !m_urgents.empty();
 145         for(std::vector<QueuedMeshUpdate*>::iterator
 146                         i = m_queue.begin();
 147                         i != m_queue.end(); i++)
 148         {
 149                 QueuedMeshUpdate *q = *i;
 150                 if(must_be_urgent && m_urgents.count(q->p) == 0)
 151                         continue;
 152                 m_queue.erase(i);
 153                 m_urgents.erase(q->p);
 154                 return q;
 155         }
 156         return NULL;
 157 }
 158
 159 /*
 160         MeshUpdateThread
 161 */
 162
 163 void * MeshUpdateThread::Thread()
 164 {
 165         ThreadStarted();
 166
 167         log_register_thread("MeshUpdateThread");
 168
 169         DSTACK(__FUNCTION_NAME);
 170
 171         BEGIN_DEBUG_EXCEPTION_HANDLER
 172
 173         porting::setThreadName("MeshUpdateThread");
 174
 175         while(!StopRequested())
 176         {
 177                 QueuedMeshUpdate *q = m_queue_in.pop();
 178                 if(q == NULL)
 179                 {
 180                         sleep_ms(3);
 181                         continue;
 182                 }
 183
 184                 ScopeProfiler sp(g_profiler, "Client: Mesh making");
 185
 186                 MapBlockMesh *mesh_new = new MapBlockMesh(q->data, m_camera_offset);
 187                 if(mesh_new->getMesh()->getMeshBufferCount() == 0)
 188                 {
 189                         delete mesh_new;
 190                         mesh_new = NULL;
 191                 }
 192
 193                 MeshUpdateResult r;
 194                 r.p = q->p;
 195                 r.mesh = mesh_new;
 196                 r.ack_block_to_server = q->ack_block_to_server;
 197
 198                 m_queue_out.push_back(r);
 199
 200                 delete q;
 201         }
 202
 203         END_DEBUG_EXCEPTION_HANDLER(errorstream)
 204
 205         return NULL;
 206 }
 207
 208 /*
 209         Client
 210 */
 211
 212 Client::Client(
 213                 IrrlichtDevice *device,
 214                 const char *playername,
 215                 std::string password,
 216                 MapDrawControl &control,
 217                 IWritableTextureSource *tsrc,
 218                 IWritableShaderSource *shsrc,
 219                 IWritableItemDefManager *itemdef,
 220                 IWritableNodeDefManager *nodedef,
 221                 ISoundManager *sound,
 222                 MtEventManager *event,
 223                 bool ipv6
 224 ):
 225         m_packetcounter_timer(0.0),
 226         m_connection_reinit_timer(0.1),
 227         m_avg_rtt_timer(0.0),
 228         m_playerpos_send_timer(0.0),
 229         m_ignore_damage_timer(0.0),
 230         m_tsrc(tsrc),
 231         m_shsrc(shsrc),
 232         m_itemdef(itemdef),
 233         m_nodedef(nodedef),
 234         m_sound(sound),
 235         m_event(event),
 236         m_mesh_update_thread(this),
 237         m_env(
 238                 new ClientMap(this, this, control,
 239                         device->getSceneManager()->getRootSceneNode(),
 240                         device->getSceneManager(), 666),
 241                 device->getSceneManager(),
 242                 tsrc, this, device
 243         ),
 244         m_particle_manager(&m_env),
 245         m_con(PROTOCOL_ID, 512, CONNECTION_TIMEOUT, ipv6, this),
 246         m_device(device),
 247         m_server_ser_ver(SER_FMT_VER_INVALID),
 248         m_playeritem(0),
 249         m_inventory_updated(false),
 250         m_inventory_from_server(NULL),
 251         m_inventory_from_server_age(0.0),
 252         m_show_highlighted(false),
 253         m_animation_time(0),
 254         m_crack_level(-1),
 255         m_crack_pos(0,0,0),
 256         m_highlighted_pos(0,0,0),
 257         m_map_seed(0),
 258         m_password(password),
 259         m_access_denied(false),
 260         m_itemdef_received(false),
 261         m_nodedef_received(false),
 262         m_media_downloader(new ClientMediaDownloader()),
 263         m_time_of_day_set(false),
 264         m_last_time_of_day_f(-1),
 265         m_time_of_day_update_timer(0),
 266         m_recommended_send_interval(0.1),
 267         m_removed_sounds_check_timer(0),
 268         m_state(LC_Created),
 269         m_localdb(NULL)
 270 {
 271         // Add local player
 272         m_env.addPlayer(new LocalPlayer(this, playername));
 273
 274         m_cache_save_interval = g_settings->getU16("server_map_save_interval");
 275
 276         m_cache_smooth_lighting = g_settings->getBool("smooth_lighting");
 277         m_cache_enable_shaders  = g_settings->getBool("enable_shaders");
 278 }
 279
 280 void Client::Stop()
 281 {
 282         //request all client managed threads to stop
 283         m_mesh_update_thread.Stop();
 284         // Save local server map
 285         if (m_localdb) {
 286                 infostream << "Local map saving ended." << std::endl;
 287                 m_localdb->endSave();
 288         }
 289 }
 290
 291 bool Client::isShutdown()
 292 {
 293
 294         if (!m_mesh_update_thread.IsRunning()) return true;
 295
 296         return false;
 297 }
 298
 299 Client::~Client()
 300 {
 301         m_con.Disconnect();
 302
 303         m_mesh_update_thread.Stop();
 304         m_mesh_update_thread.Wait();
 305         while(!m_mesh_update_thread.m_queue_out.empty()) {
 306                 MeshUpdateResult r = m_mesh_update_thread.m_queue_out.pop_frontNoEx();
 307                 delete r.mesh;
 308         }
 309
 310
 311         delete m_inventory_from_server;
 312
 313         // Delete detached inventories
 314         for(std::map<std::string, Inventory*>::iterator
 315                         i = m_detached_inventories.begin();
 316                         i != m_detached_inventories.end(); i++){
 317                 delete i->second;
 318         }
 319
 320         // cleanup 3d model meshes on client shutdown
 321         while (m_device->getSceneManager()->getMeshCache()->getMeshCount() != 0) {
 322                 scene::IAnimatedMesh * mesh =
 323                         m_device->getSceneManager()->getMeshCache()->getMeshByIndex(0);
 324
 325                 if (mesh != NULL)
 326                         m_device->getSceneManager()->getMeshCache()->removeMesh(mesh);
 327         }
 328 }
 329
 330 void Client::connect(Address address,
 331                 const std::string &address_name,
 332                 bool is_local_server)
 333 {
 334         DSTACK(__FUNCTION_NAME);
 335
 336         initLocalMapSaving(address, address_name, is_local_server);
 337
 338         m_con.SetTimeoutMs(0);
 339         m_con.Connect(address);
 340 }
 341
 342 void Client::step(float dtime)
 343 {
 344         DSTACK(__FUNCTION_NAME);
 345
 346         // Limit a bit
 347         if(dtime > 2.0)
 348                 dtime = 2.0;
 349
 350         if(m_ignore_damage_timer > dtime)
 351                 m_ignore_damage_timer -= dtime;
 352         else
 353                 m_ignore_damage_timer = 0.0;
 354
 355         m_animation_time += dtime;
 356         if(m_animation_time > 60.0)
 357                 m_animation_time -= 60.0;
 358
 359         m_time_of_day_update_timer += dtime;
 360
 361         ReceiveAll();
 362
 363         /*
 364                 Packet counter
 365         */
 366         {
 367                 float &counter = m_packetcounter_timer;
 368                 counter -= dtime;
 369                 if(counter <= 0.0)
 370                 {
 371                         counter = 20.0;
 372
 373                         infostream << "Client packetcounter (" << m_packetcounter_timer
 374                                         << "):"<<std::endl;
 375                         m_packetcounter.print(infostream);
 376                         m_packetcounter.clear();
 377                 }
 378         }
 379
 380         // UGLY hack to fix 2 second startup delay caused by non existent
 381         // server client startup synchronization in local server or singleplayer mode
 382         static bool initial_step = true;
 383         if (initial_step) {
 384                 initial_step = false;
 385         }
 386         else if(m_state == LC_Created) {
 387                 float &counter = m_connection_reinit_timer;
 388                 counter -= dtime;
 389                 if(counter <= 0.0) {
 390                         counter = 2.0;
 391
 392                         Player *myplayer = m_env.getLocalPlayer();
 393                         FATAL_ERROR_IF(myplayer == NULL, "Local player not found in environment.");
 394
 395                         // Send TOSERVER_INIT
 396                         // [0] u16 TOSERVER_INIT
 397                         // [2] u8 SER_FMT_VER_HIGHEST_READ
 398                         // [3] u8[20] player_name
 399                         // [23] u8[28] password (new in some version)
 400                         // [51] u16 minimum supported network protocol version (added sometime)
 401                         // [53] u16 maximum supported network protocol version (added later than the previous one)
 402
 403                         char pName[PLAYERNAME_SIZE];
 404                         char pPassword[PASSWORD_SIZE];
 405                         memset(pName, 0, PLAYERNAME_SIZE * sizeof(char));
 406                         memset(pPassword, 0, PASSWORD_SIZE * sizeof(char));
 407
 408                         snprintf(pName, PLAYERNAME_SIZE, "%s", myplayer->getName());
 409                         snprintf(pPassword, PASSWORD_SIZE, "%s", m_password.c_str());
 410
 411                         sendLegacyInit(pName, pPassword);
 412                 }
 413
 414                 // Not connected, return
 415                 return;
 416         }
 417
 418         /*
 419                 Do stuff if connected
 420         */
 421
 422         /*
 423                 Run Map's timers and unload unused data
 424         */
 425         const float map_timer_and_unload_dtime = 5.25;
 426         if(m_map_timer_and_unload_interval.step(dtime, map_timer_and_unload_dtime)) {
 427                 ScopeProfiler sp(g_profiler, "Client: map timer and unload");
 428                 std::vector<v3s16> deleted_blocks;
 429                 m_env.getMap().timerUpdate(map_timer_and_unload_dtime,
 430                                 g_settings->getFloat("client_unload_unused_data_timeout"),
 431                                 &deleted_blocks);
 432
 433                 /*
 434                         Send info to server
 435                         NOTE: This loop is intentionally iterated the way it is.
 436                 */
 437
 438                 std::vector<v3s16>::iterator i = deleted_blocks.begin();
 439                 std::vector<v3s16> sendlist;
 440                 for(;;) {
 441                         if(sendlist.size() == 255 || i == deleted_blocks.end()) {
 442                                 if(sendlist.empty())
 443                                         break;
 444                                 /*
 445                                         [0] u16 command
 446                                         [2] u8 count
 447                                         [3] v3s16 pos_0
 448                                         [3+6] v3s16 pos_1
 449                                         ...
 450                                 */
 451
 452                                 sendDeletedBlocks(sendlist);
 453
 454                                 if(i == deleted_blocks.end())
 455                                         break;
 456
 457                                 sendlist.clear();
 458                         }
 459
 460                         sendlist.push_back(*i);
 461                         ++i;
 462                 }
 463         }
 464
 465         /*
 466                 Handle environment
 467         */
 468         // Control local player (0ms)
 469         LocalPlayer *player = m_env.getLocalPlayer();
 470         assert(player != NULL);
 471         player->applyControl(dtime);
 472
 473         // Step environment
 474         m_env.step(dtime);
 475
 476         /*
 477                 Get events
 478         */
 479         for(;;) {
 480                 ClientEnvEvent event = m_env.getClientEvent();
 481                 if(event.type == CEE_NONE) {
 482                         break;
 483                 }
 484                 else if(event.type == CEE_PLAYER_DAMAGE) {
 485                         if(m_ignore_damage_timer <= 0) {
 486                                 u8 damage = event.player_damage.amount;
 487
 488                                 if(event.player_damage.send_to_server)
 489                                         sendDamage(damage);
 490
 491                                 // Add to ClientEvent queue
 492                                 ClientEvent event;
 493                                 event.type = CE_PLAYER_DAMAGE;
 494                                 event.player_damage.amount = damage;
 495                                 m_client_event_queue.push(event);
 496                         }
 497                 }
 498                 else if(event.type == CEE_PLAYER_BREATH) {
 499                                 u16 breath = event.player_breath.amount;
 500                                 sendBreath(breath);
 501                 }
 502         }
 503
 504         /*
 505                 Print some info
 506         */
 507         float &counter = m_avg_rtt_timer;
 508         counter += dtime;
 509         if(counter >= 10) {
 510                 counter = 0.0;
 511                 // connectedAndInitialized() is true, peer exists.
 512                 float avg_rtt = getRTT();
 513                 infostream << "Client: avg_rtt=" << avg_rtt << std::endl;
 514         }
 515
 516         /*
 517                 Send player position to server
 518         */
 519         {
 520                 float &counter = m_playerpos_send_timer;
 521                 counter += dtime;
 522                 if((m_state == LC_Ready) && (counter >= m_recommended_send_interval))
 523                 {
 524                         counter = 0.0;
 525                         sendPlayerPos();
 526                 }
 527         }
 528
 529         /*
 530                 Replace updated meshes
 531         */
 532         {
 533                 int num_processed_meshes = 0;
 534                 while(!m_mesh_update_thread.m_queue_out.empty())
 535                 {
 536                         num_processed_meshes++;
 537                         MeshUpdateResult r = m_mesh_update_thread.m_queue_out.pop_frontNoEx();
 538                         MapBlock *block = m_env.getMap().getBlockNoCreateNoEx(r.p);
 539                         if(block) {
 540                                 // Delete the old mesh
 541                                 if(block->mesh != NULL)
 542                                 {
 543                                         // TODO: Remove hardware buffers of meshbuffers of block->mesh
 544                                         delete block->mesh;
 545                                         block->mesh = NULL;
 546                                 }
 547
 548                                 // Replace with the new mesh
 549                                 block->mesh = r.mesh;
 550                         } else {
 551                                 delete r.mesh;
 552                         }
 553
 554                         if(r.ack_block_to_server) {
 555                                 /*
 556                                         Acknowledge block
 557                                         [0] u8 count
 558                                         [1] v3s16 pos_0
 559                                 */
 560                                 sendGotBlocks(r.p);
 561                         }
 562                 }
 563
 564                 if(num_processed_meshes > 0)
 565                         g_profiler->graphAdd("num_processed_meshes", num_processed_meshes);
 566         }
 567
 568         /*
 569                 Load fetched media
 570         */
 571         if (m_media_downloader && m_media_downloader->isStarted()) {
 572                 m_media_downloader->step(this);
 573                 if (m_media_downloader->isDone()) {
 574                         received_media();
 575                         delete m_media_downloader;
 576                         m_media_downloader = NULL;
 577                 }
 578         }
 579
 580         /*
 581                 If the server didn't update the inventory in a while, revert
 582                 the local inventory (so the player notices the lag problem
 583                 and knows something is wrong).
 584         */
 585         if(m_inventory_from_server)
 586         {
 587                 float interval = 10.0;
 588                 float count_before = floor(m_inventory_from_server_age / interval);
 589
 590                 m_inventory_from_server_age += dtime;
 591
 592                 float count_after = floor(m_inventory_from_server_age / interval);
 593
 594                 if(count_after != count_before)
 595                 {
 596                         // Do this every <interval> seconds after TOCLIENT_INVENTORY
 597                         // Reset the locally changed inventory to the authoritative inventory
 598                         Player *player = m_env.getLocalPlayer();
 599                         player->inventory = *m_inventory_from_server;
 600                         m_inventory_updated = true;
 601                 }
 602         }
 603
 604         /*
 605                 Update positions of sounds attached to objects
 606         */
 607         {
 608                 for(std::map<int, u16>::iterator
 609                                 i = m_sounds_to_objects.begin();
 610                                 i != m_sounds_to_objects.end(); i++)
 611                 {
 612                         int client_id = i->first;
 613                         u16 object_id = i->second;
 614                         ClientActiveObject *cao = m_env.getActiveObject(object_id);
 615                         if(!cao)
 616                                 continue;
 617                         v3f pos = cao->getPosition();
 618                         m_sound->updateSoundPosition(client_id, pos);
 619                 }
 620         }
 621
 622         /*
 623                 Handle removed remotely initiated sounds
 624         */
 625         m_removed_sounds_check_timer += dtime;
 626         if(m_removed_sounds_check_timer >= 2.32) {
 627                 m_removed_sounds_check_timer = 0;
 628                 // Find removed sounds and clear references to them
 629                 std::vector<s32> removed_server_ids;
 630                 for(std::map<s32, int>::iterator
 631                                 i = m_sounds_server_to_client.begin();
 632                                 i != m_sounds_server_to_client.end();) {
 633                         s32 server_id = i->first;
 634                         int client_id = i->second;
 635                         i++;
 636                         if(!m_sound->soundExists(client_id)) {
 637                                 m_sounds_server_to_client.erase(server_id);
 638                                 m_sounds_client_to_server.erase(client_id);
 639                                 m_sounds_to_objects.erase(client_id);
 640                                 removed_server_ids.push_back(server_id);
 641                         }
 642                 }
 643
 644                 // Sync to server
 645                 if(!removed_server_ids.empty()) {
 646                         sendRemovedSounds(removed_server_ids);
 647                 }
 648         }
 649
 650         // Write server map
 651         if (m_localdb && m_localdb_save_interval.step(dtime,
 652                         m_cache_save_interval)) {
 653                 m_localdb->endSave();
 654                 m_localdb->beginSave();
 655         }
 656 }
 657
 658 bool Client::loadMedia(const std::string &data, const std::string &filename)
 659 {
 660         // Silly irrlicht's const-incorrectness
 661         Buffer<char> data_rw(data.c_str(), data.size());
 662
 663         std::string name;
 664
 665         const char *image_ext[] = {
 666                 ".png", ".jpg", ".bmp", ".tga",
 667                 ".pcx", ".ppm", ".psd", ".wal", ".rgb",
 668                 NULL
 669         };
 670         name = removeStringEnd(filename, image_ext);
 671         if(name != "")
 672         {
 673                 verbosestream<<"Client: Attempting to load image "
 674                 <<"file \""<<filename<<"\""<<std::endl;
 675
 676                 io::IFileSystem *irrfs = m_device->getFileSystem();
 677                 video::IVideoDriver *vdrv = m_device->getVideoDriver();
 678
 679                 // Create an irrlicht memory file
 680                 io::IReadFile *rfile = irrfs->createMemoryReadFile(
 681                                 *data_rw, data_rw.getSize(), "_tempreadfile");
 682
 683                 FATAL_ERROR_IF(!rfile, "Could not create irrlicht memory file.");
 684
 685                 // Read image
 686                 video::IImage *img = vdrv->createImageFromFile(rfile);
 687                 if(!img){
 688                         errorstream<<"Client: Cannot create image from data of "
 689                                         <<"file \""<<filename<<"\""<<std::endl;
 690                         rfile->drop();
 691                         return false;
 692                 }
 693                 else {
 694                         m_tsrc->insertSourceImage(filename, img);
 695                         img->drop();
 696                         rfile->drop();
 697                         return true;
 698                 }
 699         }
 700
 701         const char *sound_ext[] = {
 702                 ".0.ogg", ".1.ogg", ".2.ogg", ".3.ogg", ".4.ogg",
 703                 ".5.ogg", ".6.ogg", ".7.ogg", ".8.ogg", ".9.ogg",
 704                 ".ogg", NULL
 705         };
 706         name = removeStringEnd(filename, sound_ext);
 707         if(name != "")
 708         {
 709                 verbosestream<<"Client: Attempting to load sound "
 710                 <<"file \""<<filename<<"\""<<std::endl;
 711                 m_sound->loadSoundData(name, data);
 712                 return true;
 713         }
 714
 715         const char *model_ext[] = {
 716                 ".x", ".b3d", ".md2", ".obj",
 717                 NULL
 718         };
 719         name = removeStringEnd(filename, model_ext);
 720         if(name != "")
 721         {
 722                 verbosestream<<"Client: Storing model into memory: "
 723                                 <<"\""<<filename<<"\""<<std::endl;
 724                 if(m_mesh_data.count(filename))
 725                         errorstream<<"Multiple models with name \""<<filename.c_str()
 726                                         <<"\" found; replacing previous model"<<std::endl;
 727                 m_mesh_data[filename] = data;
 728                 return true;
 729         }
 730
 731         errorstream<<"Client: Don't know how to load file \""
 732                         <<filename<<"\""<<std::endl;
 733         return false;
 734 }
 735
 736 // Virtual methods from con::PeerHandler
 737 void Client::peerAdded(con::Peer *peer)
 738 {
 739         infostream<<"Client::peerAdded(): peer->id="
 740                         <<peer->id<<std::endl;
 741 }
 742 void Client::deletingPeer(con::Peer *peer, bool timeout)
 743 {
 744         infostream<<"Client::deletingPeer(): "
 745                         "Server Peer is getting deleted "
 746                         <<"(timeout="<<timeout<<")"<<std::endl;
 747 }
 748
 749 /*
 750         u16 command
 751         u16 number of files requested
 752         for each file {
 753                 u16 length of name
 754                 string name
 755         }
 756 */
 757 void Client::request_media(const std::vector<std::string> &file_requests)
 758 {
 759         std::ostringstream os(std::ios_base::binary);
 760         writeU16(os, TOSERVER_REQUEST_MEDIA);
 761         size_t file_requests_size = file_requests.size();
 762
 763         FATAL_ERROR_IF(file_requests_size > 0xFFFF, "Unsupported number of file requests");
 764
 765         // Packet dynamicly resized
 766         NetworkPacket pkt(TOSERVER_REQUEST_MEDIA, 2 + 0);
 767
 768         pkt << (u16) (file_requests_size & 0xFFFF);
 769
 770         for(std::vector<std::string>::const_iterator i = file_requests.begin();
 771                         i != file_requests.end(); ++i) {
 772                 pkt << (*i);
 773         }
 774
 775         Send(&pkt);
 776
 777         infostream << "Client: Sending media request list to server ("
 778                         << file_requests.size() << " files. packet size)" << std::endl;
 779 }
 780
 781 void Client::received_media()
 782 {
 783         NetworkPacket pkt(TOSERVER_RECEIVED_MEDIA, 0);
 784         Send(&pkt);
 785         infostream << "Client: Notifying server that we received all media"
 786                         << std::endl;
 787 }
 788
 789 void Client::initLocalMapSaving(const Address &address,
 790                 const std::string &hostname,
 791                 bool is_local_server)
 792 {
 793         if (!g_settings->getBool("enable_local_map_saving") || is_local_server) {
 794                 return;
 795         }
 796
 797         const std::string world_path = porting::path_user
 798                 + DIR_DELIM + "worlds"
 799                 + DIR_DELIM + "server_"
 800                 + hostname + "_" + to_string(address.getPort());
 801
 802         fs::CreateAllDirs(world_path);
 803
 804         m_localdb = new Database_SQLite3(world_path);
 805         m_localdb->beginSave();
 806         actionstream << "Local map saving started, map will be saved at '" << world_path << "'" << std::endl;
 807 }
 808
 809 void Client::ReceiveAll()
 810 {
 811         DSTACK(__FUNCTION_NAME);
 812         u32 start_ms = porting::getTimeMs();
 813         for(;;)
 814         {
 815                 // Limit time even if there would be huge amounts of data to
 816                 // process
 817                 if(porting::getTimeMs() > start_ms + 100)
 818                         break;
 819
 820                 try {
 821                         Receive();
 822                         g_profiler->graphAdd("client_received_packets", 1);
 823                 }
 824                 catch(con::NoIncomingDataException &e) {
 825                         break;
 826                 }
 827                 catch(con::InvalidIncomingDataException &e) {
 828                         infostream<<"Client::ReceiveAll(): "
 829                                         "InvalidIncomingDataException: what()="
 830                                         <<e.what()<<std::endl;
 831                 }
 832         }
 833 }
 834
 835 void Client::Receive()
 836 {
 837         DSTACK(__FUNCTION_NAME);
 838         NetworkPacket pkt;
 839         m_con.Receive(&pkt);
 840         ProcessData(&pkt);
 841 }
 842
 843 inline void Client::handleCommand(NetworkPacket* pkt)
 844 {
 845         const ToClientCommandHandler& opHandle = toClientCommandTable[pkt->getCommand()];
 846         (this->*opHandle.handler)(pkt);
 847 }
 848
 849 /*
 850         sender_peer_id given to this shall be quaranteed to be a valid peer
 851 */
 852 void Client::ProcessData(NetworkPacket *pkt)
 853 {
 854         DSTACK(__FUNCTION_NAME);
 855
 856         ToClientCommand command = (ToClientCommand) pkt->getCommand();
 857         u32 sender_peer_id = pkt->getPeerId();
 858
 859         //infostream<<"Client: received command="<<command<<std::endl;
 860         m_packetcounter.add((u16)command);
 861
 862         /*
 863                 If this check is removed, be sure to change the queue
 864                 system to know the ids
 865         */
 866         if(sender_peer_id != PEER_ID_SERVER) {
 867                 infostream << "Client::ProcessData(): Discarding data not "
 868                         "coming from server: peer_id=" << sender_peer_id
 869                         << std::endl;
 870                 return;
 871         }
 872
 873         // Command must be handled into ToClientCommandHandler
 874         if (command >= TOCLIENT_NUM_MSG_TYPES) {
 875                 infostream << "Client: Ignoring unknown command "
 876                         << command << std::endl;
 877         }
 878
 879         /*
 880          * Those packets are handled before m_server_ser_ver is set, it's normal
 881          * But we must use the new ToClientConnectionState in the future,
 882          * as a byte mask
 883          */
 884         if(toClientCommandTable[command].state == TOCLIENT_STATE_NOT_CONNECTED) {
 885                 handleCommand(pkt);
 886                 return;
 887         }
 888
 889         if(m_server_ser_ver == SER_FMT_VER_INVALID) {
 890                 infostream << "Client: Server serialization"
 891                                 " format invalid or not initialized."
 892                                 " Skipping incoming command=" << command << std::endl;
 893                 return;
 894         }
 895
 896         /*
 897           Handle runtime commands
 898         */
 899
 900         handleCommand(pkt);
 901 }
 902
 903 void Client::Send(NetworkPacket* pkt)
 904 {
 905         m_con.Send(PEER_ID_SERVER,
 906                 serverCommandFactoryTable[pkt->getCommand()].channel,
 907                 pkt,
 908                 serverCommandFactoryTable[pkt->getCommand()].reliable);
 909 }
 910
 911 void Client::interact(u8 action, const PointedThing& pointed)
 912 {
 913         if(m_state != LC_Ready) {
 914                 errorstream << "Client::interact() "
 915                                 "Canceled (not connected)"
 916                                 << std::endl;
 917                 return;
 918         }
 919
 920         /*
 921                 [0] u16 command
 922                 [2] u8 action
 923                 [3] u16 item
 924                 [5] u32 length of the next item
 925                 [9] serialized PointedThing
 926                 actions:
 927                 0: start digging (from undersurface) or use
 928                 1: stop digging (all parameters ignored)
 929                 2: digging completed
 930                 3: place block or item (to abovesurface)
 931                 4: use item
 932         */
 933
 934         NetworkPacket pkt(TOSERVER_INTERACT, 1 + 2 + 0);
 935
 936         pkt << action;
 937         pkt << (u16)getPlayerItem();
 938
 939         std::ostringstream tmp_os(std::ios::binary);
 940         pointed.serialize(tmp_os);
 941
 942         pkt.putLongString(tmp_os.str());
 943
 944         Send(&pkt);
 945 }
 946
 947 void Client::sendLegacyInit(const char* playerName, const char* playerPassword)
 948 {
 949         NetworkPacket pkt(TOSERVER_INIT_LEGACY,
 950                         1 + PLAYERNAME_SIZE + PASSWORD_SIZE + 2 + 2);
 951
 952         pkt << (u8) SER_FMT_VER_HIGHEST_READ;
 953         pkt.putRawString(playerName,PLAYERNAME_SIZE);
 954         pkt.putRawString(playerPassword, PASSWORD_SIZE);
 955         pkt << (u16) CLIENT_PROTOCOL_VERSION_MIN << (u16) CLIENT_PROTOCOL_VERSION_MAX;
 956
 957         Send(&pkt);
 958 }
 959
 960 void Client::sendDeletedBlocks(std::vector<v3s16> &blocks)
 961 {
 962         NetworkPacket pkt(TOSERVER_DELETEDBLOCKS, 1 + sizeof(v3s16) * blocks.size());
 963
 964         pkt << (u8) blocks.size();
 965
 966         u32 k = 0;
 967         for(std::vector<v3s16>::iterator
 968                         j = blocks.begin();
 969                         j != blocks.end(); ++j) {
 970                 pkt << *j;
 971                 k++;
 972         }
 973
 974         Send(&pkt);
 975 }
 976
 977 void Client::sendGotBlocks(v3s16 block)
 978 {
 979         NetworkPacket pkt(TOSERVER_GOTBLOCKS, 1 + 6);
 980         pkt << (u8) 1 << block;
 981         Send(&pkt);
 982 }
 983
 984 void Client::sendRemovedSounds(std::vector<s32> &soundList)
 985 {
 986         size_t server_ids = soundList.size();
 987         assert(server_ids <= 0xFFFF);
 988
 989         NetworkPacket pkt(TOSERVER_REMOVED_SOUNDS, 2 + server_ids * 4);
 990
 991         pkt << (u16) (server_ids & 0xFFFF);
 992
 993         for(std::vector<s32>::iterator i = soundList.begin();
 994                         i != soundList.end(); i++)
 995                 pkt << *i;
 996
 997         Send(&pkt);
 998 }
 999
1000 void Client::sendNodemetaFields(v3s16 p, const std::string &formname,
1001                 const std::map<std::string, std::string> &fields)
1002 {
1003         size_t fields_size = fields.size();
1004
1005         FATAL_ERROR_IF(fields_size > 0xFFFF, "Unsupported number of nodemeta fields");
1006
1007         NetworkPacket pkt(TOSERVER_NODEMETA_FIELDS, 0);
1008
1009         pkt << p << formname << (u16) (fields_size & 0xFFFF);
1010
1011         for(std::map<std::string, std::string>::const_iterator
1012                         i = fields.begin(); i != fields.end(); i++) {
1013                 const std::string &name = i->first;
1014                 const std::string &value = i->second;
1015                 pkt << name;
1016                 pkt.putLongString(value);
1017         }
1018
1019         Send(&pkt);
1020 }
1021
1022 void Client::sendInventoryFields(const std::string &formname,
1023                 const std::map<std::string, std::string> &fields)
1024 {
1025         size_t fields_size = fields.size();
1026         FATAL_ERROR_IF(fields_size > 0xFFFF, "Unsupported number of inventory fields");
1027
1028         NetworkPacket pkt(TOSERVER_INVENTORY_FIELDS, 0);
1029         pkt << formname << (u16) (fields_size & 0xFFFF);
1030
1031         for(std::map<std::string, std::string>::const_iterator
1032                         i = fields.begin(); i != fields.end(); i++) {
1033                 const std::string &name  = i->first;
1034                 const std::string &value = i->second;
1035                 pkt << name;
1036                 pkt.putLongString(value);
1037         }
1038
1039         Send(&pkt);
1040 }
1041
1042 void Client::sendInventoryAction(InventoryAction *a)
1043 {
1044         std::ostringstream os(std::ios_base::binary);
1045
1046         a->serialize(os);
1047
1048         // Make data buffer
1049         std::string s = os.str();
1050
1051         NetworkPacket pkt(TOSERVER_INVENTORY_ACTION, s.size());
1052         pkt.putRawString(s.c_str(),s.size());
1053
1054         Send(&pkt);
1055 }
1056
1057 void Client::sendChatMessage(const std::wstring &message)
1058 {
1059         NetworkPacket pkt(TOSERVER_CHAT_MESSAGE, 2 + message.size() * sizeof(u16));
1060
1061         pkt << message;
1062
1063         Send(&pkt);
1064 }
1065
1066 void Client::sendChangePassword(const std::wstring &oldpassword,
1067         const std::wstring &newpassword)
1068 {
1069         Player *player = m_env.getLocalPlayer();
1070         if(player == NULL)
1071                 return;
1072
1073         std::string playername = player->getName();
1074         std::string oldpwd = translatePassword(playername, oldpassword);
1075         std::string newpwd = translatePassword(playername, newpassword);
1076
1077         NetworkPacket pkt(TOSERVER_PASSWORD_LEGACY, 2 * PASSWORD_SIZE);
1078
1079         for(u8 i = 0; i < PASSWORD_SIZE; i++) {
1080                 pkt << (u8) (i < oldpwd.length() ? oldpwd[i] : 0);
1081         }
1082
1083         for(u8 i = 0; i < PASSWORD_SIZE; i++) {
1084                 pkt << (u8) (i < newpwd.length() ? newpwd[i] : 0);
1085         }
1086
1087         Send(&pkt);
1088 }
1089
1090
1091 void Client::sendDamage(u8 damage)
1092 {
1093         DSTACK(__FUNCTION_NAME);
1094
1095         NetworkPacket pkt(TOSERVER_DAMAGE, sizeof(u8));
1096         pkt << damage;
1097         Send(&pkt);
1098 }
1099
1100 void Client::sendBreath(u16 breath)
1101 {
1102         DSTACK(__FUNCTION_NAME);
1103
1104         NetworkPacket pkt(TOSERVER_BREATH, sizeof(u16));
1105         pkt << breath;
1106         Send(&pkt);
1107 }
1108
1109 void Client::sendRespawn()
1110 {
1111         DSTACK(__FUNCTION_NAME);
1112
1113         NetworkPacket pkt(TOSERVER_RESPAWN, 0);
1114         Send(&pkt);
1115 }
1116
1117 void Client::sendReady()
1118 {
1119         DSTACK(__FUNCTION_NAME);
1120
1121         NetworkPacket pkt(TOSERVER_CLIENT_READY,
1122                         1 + 1 + 1 + 1 + 2 + sizeof(char) * strlen(g_version_hash));
1123
1124         pkt << (u8) VERSION_MAJOR << (u8) VERSION_MINOR << (u8) VERSION_PATCH
1125                 << (u8) 0 << (u16) strlen(g_version_hash);
1126
1127         pkt.putRawString(g_version_hash, (u16) strlen(g_version_hash));
1128         Send(&pkt);
1129 }
1130
1131 void Client::sendPlayerPos()
1132 {
1133         LocalPlayer *myplayer = m_env.getLocalPlayer();
1134         if(myplayer == NULL)
1135                 return;
1136
1137         // Save bandwidth by only updating position when something changed
1138         if(myplayer->last_position        == myplayer->getPosition() &&
1139                         myplayer->last_speed      == myplayer->getSpeed()    &&
1140                         myplayer->last_pitch      == myplayer->getPitch()    &&
1141                         myplayer->last_yaw        == myplayer->getYaw()      &&
1142                         myplayer->last_keyPressed == myplayer->keyPressed)
1143                 return;
1144
1145         myplayer->last_position   = myplayer->getPosition();
1146         myplayer->last_speed      = myplayer->getSpeed();
1147         myplayer->last_pitch      = myplayer->getPitch();
1148         myplayer->last_yaw        = myplayer->getYaw();
1149         myplayer->last_keyPressed = myplayer->keyPressed;
1150
1151         u16 our_peer_id;
1152         {
1153                 //JMutexAutoLock lock(m_con_mutex); //bulk comment-out
1154                 our_peer_id = m_con.GetPeerID();
1155         }
1156
1157         // Set peer id if not set already
1158         if(myplayer->peer_id == PEER_ID_INEXISTENT)
1159                 myplayer->peer_id = our_peer_id;
1160
1161         assert(myplayer->peer_id == our_peer_id);
1162
1163         v3f pf         = myplayer->getPosition();
1164         v3f sf         = myplayer->getSpeed();
1165         s32 pitch      = myplayer->getPitch() * 100;
1166         s32 yaw        = myplayer->getYaw() * 100;
1167         u32 keyPressed = myplayer->keyPressed;
1168
1169         v3s32 position(pf.X*100, pf.Y*100, pf.Z*100);
1170         v3s32 speed(sf.X*100, sf.Y*100, sf.Z*100);
1171         /*
1172                 Format:
1173                 [0] v3s32 position*100
1174                 [12] v3s32 speed*100
1175                 [12+12] s32 pitch*100
1176                 [12+12+4] s32 yaw*100
1177                 [12+12+4+4] u32 keyPressed
1178         */
1179
1180         NetworkPacket pkt(TOSERVER_PLAYERPOS, 12 + 12 + 4 + 4 + 4);
1181
1182         pkt << position << speed << pitch << yaw << keyPressed;
1183
1184         Send(&pkt);
1185 }
1186
1187 void Client::sendPlayerItem(u16 item)
1188 {
1189         Player *myplayer = m_env.getLocalPlayer();
1190         if(myplayer == NULL)
1191                 return;
1192
1193         u16 our_peer_id = m_con.GetPeerID();
1194
1195         // Set peer id if not set already
1196         if(myplayer->peer_id == PEER_ID_INEXISTENT)
1197                 myplayer->peer_id = our_peer_id;
1198         assert(myplayer->peer_id == our_peer_id);
1199
1200         NetworkPacket pkt(TOSERVER_PLAYERITEM, 2);
1201
1202         pkt << item;
1203
1204         Send(&pkt);
1205 }
1206
1207 void Client::removeNode(v3s16 p)
1208 {
1209         std::map<v3s16, MapBlock*> modified_blocks;
1210
1211         try {
1212                 m_env.getMap().removeNodeAndUpdate(p, modified_blocks);
1213         }
1214         catch(InvalidPositionException &e) {
1215         }
1216
1217         for(std::map<v3s16, MapBlock *>::iterator
1218                         i = modified_blocks.begin();
1219                         i != modified_blocks.end(); ++i) {
1220                 addUpdateMeshTaskWithEdge(i->first, false, true);
1221         }
1222 }
1223
1224 void Client::addNode(v3s16 p, MapNode n, bool remove_metadata)
1225 {
1226         //TimeTaker timer1("Client::addNode()");
1227
1228         std::map<v3s16, MapBlock*> modified_blocks;
1229
1230         try {
1231                 //TimeTaker timer3("Client::addNode(): addNodeAndUpdate");
1232                 m_env.getMap().addNodeAndUpdate(p, n, modified_blocks, remove_metadata);
1233         }
1234         catch(InvalidPositionException &e) {
1235         }
1236
1237         for(std::map<v3s16, MapBlock *>::iterator
1238                         i = modified_blocks.begin();
1239                         i != modified_blocks.end(); ++i) {
1240                 addUpdateMeshTaskWithEdge(i->first, false, true);
1241         }
1242 }
1243
1244 void Client::setPlayerControl(PlayerControl &control)
1245 {
1246         LocalPlayer *player = m_env.getLocalPlayer();
1247         assert(player != NULL);
1248         player->control = control;
1249 }
1250
1251 void Client::selectPlayerItem(u16 item)
1252 {
1253         m_playeritem = item;
1254         m_inventory_updated = true;
1255         sendPlayerItem(item);
1256 }
1257
1258 // Returns true if the inventory of the local player has been
1259 // updated from the server. If it is true, it is set to false.
1260 bool Client::getLocalInventoryUpdated()
1261 {
1262         bool updated = m_inventory_updated;
1263         m_inventory_updated = false;
1264         return updated;
1265 }
1266
1267 // Copies the inventory of the local player to parameter
1268 void Client::getLocalInventory(Inventory &dst)
1269 {
1270         Player *player = m_env.getLocalPlayer();
1271         assert(player != NULL);
1272         dst = player->inventory;
1273 }
1274
1275 Inventory* Client::getInventory(const InventoryLocation &loc)
1276 {
1277         switch(loc.type){
1278         case InventoryLocation::UNDEFINED:
1279         {}
1280         break;
1281         case InventoryLocation::CURRENT_PLAYER:
1282         {
1283                 Player *player = m_env.getLocalPlayer();
1284                 assert(player != NULL);
1285                 return &player->inventory;
1286         }
1287         break;
1288         case InventoryLocation::PLAYER:
1289         {
1290                 Player *player = m_env.getPlayer(loc.name.c_str());
1291                 if(!player)
1292                         return NULL;
1293                 return &player->inventory;
1294         }
1295         break;
1296         case InventoryLocation::NODEMETA:
1297         {
1298                 NodeMetadata *meta = m_env.getMap().getNodeMetadata(loc.p);
1299                 if(!meta)
1300                         return NULL;
1301                 return meta->getInventory();
1302         }
1303         break;
1304         case InventoryLocation::DETACHED:
1305         {
1306                 if(m_detached_inventories.count(loc.name) == 0)
1307                         return NULL;
1308                 return m_detached_inventories[loc.name];
1309         }
1310         break;
1311         default:
1312                 FATAL_ERROR("Invalid inventory location type.");
1313                 break;
1314         }
1315         return NULL;
1316 }
1317
1318 void Client::inventoryAction(InventoryAction *a)
1319 {
1320         /*
1321                 Send it to the server
1322         */
1323         sendInventoryAction(a);
1324
1325         /*
1326                 Predict some local inventory changes
1327         */
1328         a->clientApply(this, this);
1329
1330         // Remove it
1331         delete a;
1332 }
1333
1334 ClientActiveObject * Client::getSelectedActiveObject(
1335                 f32 max_d,
1336                 v3f from_pos_f_on_map,
1337                 core::line3d<f32> shootline_on_map
1338         )
1339 {
1340         std::vector<DistanceSortedActiveObject> objects;
1341
1342         m_env.getActiveObjects(from_pos_f_on_map, max_d, objects);
1343
1344         // Sort them.
1345         // After this, the closest object is the first in the array.
1346         std::sort(objects.begin(), objects.end());
1347
1348         for(unsigned int i=0; i<objects.size(); i++)
1349         {
1350                 ClientActiveObject *obj = objects[i].obj;
1351
1352                 core::aabbox3d<f32> *selection_box = obj->getSelectionBox();
1353                 if(selection_box == NULL)
1354                         continue;
1355
1356                 v3f pos = obj->getPosition();
1357
1358                 core::aabbox3d<f32> offsetted_box(
1359                                 selection_box->MinEdge + pos,
1360                                 selection_box->MaxEdge + pos
1361                 );
1362
1363                 if(offsetted_box.intersectsWithLine(shootline_on_map))
1364                 {
1365                         return obj;
1366                 }
1367         }
1368
1369         return NULL;
1370 }
1371
1372 std::list<std::string> Client::getConnectedPlayerNames()
1373 {
1374         return m_env.getPlayerNames();
1375 }
1376
1377 float Client::getAnimationTime()
1378 {
1379         return m_animation_time;
1380 }
1381
1382 int Client::getCrackLevel()
1383 {
1384         return m_crack_level;
1385 }
1386
1387 void Client::setHighlighted(v3s16 pos, bool show_highlighted)
1388 {
1389         m_show_highlighted = show_highlighted;
1390         v3s16 old_highlighted_pos = m_highlighted_pos;
1391         m_highlighted_pos = pos;
1392         addUpdateMeshTaskForNode(old_highlighted_pos, false, true);
1393         addUpdateMeshTaskForNode(m_highlighted_pos, false, true);
1394 }
1395
1396 void Client::setCrack(int level, v3s16 pos)
1397 {
1398         int old_crack_level = m_crack_level;
1399         v3s16 old_crack_pos = m_crack_pos;
1400
1401         m_crack_level = level;
1402         m_crack_pos = pos;
1403
1404         if(old_crack_level >= 0 && (level < 0 || pos != old_crack_pos))
1405         {
1406                 // remove old crack
1407                 addUpdateMeshTaskForNode(old_crack_pos, false, true);
1408         }
1409         if(level >= 0 && (old_crack_level < 0 || pos != old_crack_pos))
1410         {
1411                 // add new crack
1412                 addUpdateMeshTaskForNode(pos, false, true);
1413         }
1414 }
1415
1416 u16 Client::getHP()
1417 {
1418         Player *player = m_env.getLocalPlayer();
1419         assert(player != NULL);
1420         return player->hp;
1421 }
1422
1423 u16 Client::getBreath()
1424 {
1425         Player *player = m_env.getLocalPlayer();
1426         assert(player != NULL);
1427         return player->getBreath();
1428 }
1429
1430 bool Client::getChatMessage(std::wstring &message)
1431 {
1432         if(m_chat_queue.size() == 0)
1433                 return false;
1434         message = m_chat_queue.front();
1435         m_chat_queue.pop();
1436         return true;
1437 }
1438
1439 void Client::typeChatMessage(const std::wstring &message)
1440 {
1441         // Discard empty line
1442         if(message == L"")
1443                 return;
1444
1445         // Send to others
1446         sendChatMessage(message);
1447
1448         // Show locally
1449         if (message[0] == L'/')
1450         {
1451                 m_chat_queue.push((std::wstring)L"issued command: " + message);
1452         }
1453         else
1454         {
1455                 LocalPlayer *player = m_env.getLocalPlayer();
1456                 assert(player != NULL);
1457                 std::wstring name = narrow_to_wide(player->getName());
1458                 m_chat_queue.push((std::wstring)L"<" + name + L"> " + message);
1459         }
1460 }
1461
1462 void Client::addUpdateMeshTask(v3s16 p, bool ack_to_server, bool urgent)
1463 {
1464         MapBlock *b = m_env.getMap().getBlockNoCreateNoEx(p);
1465         if(b == NULL)
1466                 return;
1467
1468         /*
1469                 Create a task to update the mesh of the block
1470         */
1471
1472         MeshMakeData *data = new MeshMakeData(this, m_cache_enable_shaders);
1473
1474         {
1475                 //TimeTaker timer("data fill");
1476                 // Release: ~0ms
1477                 // Debug: 1-6ms, avg=2ms
1478                 data->fill(b);
1479                 data->setCrack(m_crack_level, m_crack_pos);
1480                 data->setHighlighted(m_highlighted_pos, m_show_highlighted);
1481                 data->setSmoothLighting(m_cache_smooth_lighting);
1482         }
1483
1484         // Add task to queue
1485         m_mesh_update_thread.m_queue_in.addBlock(p, data, ack_to_server, urgent);
1486 }
1487
1488 void Client::addUpdateMeshTaskWithEdge(v3s16 blockpos, bool ack_to_server, bool urgent)
1489 {
1490         try{
1491                 addUpdateMeshTask(blockpos, ack_to_server, urgent);
1492         }
1493         catch(InvalidPositionException &e){}
1494
1495         // Leading edge
1496         for (int i=0;i<6;i++)
1497         {
1498                 try{
1499                         v3s16 p = blockpos + g_6dirs[i];
1500                         addUpdateMeshTask(p, false, urgent);
1501                 }
1502                 catch(InvalidPositionException &e){}
1503         }
1504 }
1505
1506 void Client::addUpdateMeshTaskForNode(v3s16 nodepos, bool ack_to_server, bool urgent)
1507 {
1508         {
1509                 v3s16 p = nodepos;
1510                 infostream<<"Client::addUpdateMeshTaskForNode(): "
1511                                 <<"("<<p.X<<","<<p.Y<<","<<p.Z<<")"
1512                                 <<std::endl;
1513         }
1514
1515         v3s16 blockpos          = getNodeBlockPos(nodepos);
1516         v3s16 blockpos_relative = blockpos * MAP_BLOCKSIZE;
1517
1518         try{
1519                 addUpdateMeshTask(blockpos, ack_to_server, urgent);
1520         }
1521         catch(InvalidPositionException &e) {}
1522
1523         // Leading edge
1524         if(nodepos.X == blockpos_relative.X){
1525                 try{
1526                         v3s16 p = blockpos + v3s16(-1,0,0);
1527                         addUpdateMeshTask(p, false, urgent);
1528                 }
1529                 catch(InvalidPositionException &e){}
1530         }
1531
1532         if(nodepos.Y == blockpos_relative.Y){
1533                 try{
1534                         v3s16 p = blockpos + v3s16(0,-1,0);
1535                         addUpdateMeshTask(p, false, urgent);
1536                 }
1537                 catch(InvalidPositionException &e){}
1538         }
1539
1540         if(nodepos.Z == blockpos_relative.Z){
1541                 try{
1542                         v3s16 p = blockpos + v3s16(0,0,-1);
1543                         addUpdateMeshTask(p, false, urgent);
1544                 }
1545                 catch(InvalidPositionException &e){}
1546         }
1547 }
1548
1549 ClientEvent Client::getClientEvent()
1550 {
1551         ClientEvent event;
1552         if(m_client_event_queue.size() == 0) {
1553                 event.type = CE_NONE;
1554         }
1555         else {
1556                 event = m_client_event_queue.front();
1557                 m_client_event_queue.pop();
1558         }
1559         return event;
1560 }
1561
1562 float Client::mediaReceiveProgress()
1563 {
1564         if (m_media_downloader)
1565                 return m_media_downloader->getProgress();
1566         else
1567                 return 1.0; // downloader only exists when not yet done
1568 }
1569
1570 typedef struct TextureUpdateArgs {
1571         IrrlichtDevice *device;
1572         gui::IGUIEnvironment *guienv;
1573         u32 last_time_ms;
1574         u16 last_percent;
1575         const wchar_t* text_base;
1576 } TextureUpdateArgs;
1577
1578 void texture_update_progress(void *args, u32 progress, u32 max_progress)
1579 {
1580                 TextureUpdateArgs* targs = (TextureUpdateArgs*) args;
1581                 u16 cur_percent = ceil(progress / (double) max_progress * 100.);
1582
1583                 // update the loading menu -- if neccessary
1584                 bool do_draw = false;
1585                 u32 time_ms = targs->last_time_ms;
1586                 if (cur_percent != targs->last_percent) {
1587                         targs->last_percent = cur_percent;
1588                         time_ms = getTimeMs();
1589                         // only draw when the user will notice something:
1590                         do_draw = (time_ms - targs->last_time_ms > 100);
1591                 }
1592
1593                 if (do_draw) {
1594                         targs->last_time_ms = time_ms;
1595                         std::basic_stringstream<wchar_t> strm;
1596                         strm << targs->text_base << " " << targs->last_percent << "%...";
1597                         draw_load_screen(strm.str(), targs->device, targs->guienv, 0,
1598                                 72 + (u16) ((18. / 100.) * (double) targs->last_percent));
1599                 }
1600 }
1601
1602 void Client::afterContentReceived(IrrlichtDevice *device)
1603 {
1604         infostream<<"Client::afterContentReceived() started"<<std::endl;
1605         assert(m_itemdef_received); // pre-condition
1606         assert(m_nodedef_received); // pre-condition
1607         assert(mediaReceived()); // pre-condition
1608
1609         const wchar_t* text = wgettext("Loading textures...");
1610
1611         // Clear cached pre-scaled 2D GUI images, as this cache
1612         // might have images with the same name but different
1613         // content from previous sessions.
1614         guiScalingCacheClear(device->getVideoDriver());
1615
1616         // Rebuild inherited images and recreate textures
1617         infostream<<"- Rebuilding images and textures"<<std::endl;
1618         draw_load_screen(text,device, guienv, 0, 70);
1619         m_tsrc->rebuildImagesAndTextures();
1620         delete[] text;
1621
1622         // Rebuild shaders
1623         infostream<<"- Rebuilding shaders"<<std::endl;
1624         text = wgettext("Rebuilding shaders...");
1625         draw_load_screen(text, device, guienv, 0, 71);
1626         m_shsrc->rebuildShaders();
1627         delete[] text;
1628
1629         // Update node aliases
1630         infostream<<"- Updating node aliases"<<std::endl;
1631         text = wgettext("Initializing nodes...");
1632         draw_load_screen(text, device, guienv, 0, 72);
1633         m_nodedef->updateAliases(m_itemdef);
1634         m_nodedef->setNodeRegistrationStatus(true);
1635         m_nodedef->runNodeResolverCallbacks();
1636         delete[] text;
1637
1638         // Update node textures and assign shaders to each tile
1639         infostream<<"- Updating node textures"<<std::endl;
1640         TextureUpdateArgs tu_args;
1641         tu_args.device = device;
1642         tu_args.guienv = guienv;
1643         tu_args.last_time_ms = getTimeMs();
1644         tu_args.last_percent = 0;
1645         tu_args.text_base =  wgettext("Initializing nodes");
1646         m_nodedef->updateTextures(this, texture_update_progress, &tu_args);
1647         delete[] tu_args.text_base;
1648
1649         // Preload item textures and meshes if configured to
1650         if(g_settings->getBool("preload_item_visuals"))
1651         {
1652                 verbosestream<<"Updating item textures and meshes"<<std::endl;
1653                 text = wgettext("Item textures...");
1654                 draw_load_screen(text, device, guienv, 0, 0);
1655                 std::set<std::string> names = m_itemdef->getAll();
1656                 size_t size = names.size();
1657                 size_t count = 0;
1658                 int percent = 0;
1659                 for(std::set<std::string>::const_iterator
1660                                 i = names.begin(); i != names.end(); ++i)
1661                 {
1662                         // Asking for these caches the result
1663                         m_itemdef->getInventoryTexture(*i, this);
1664                         m_itemdef->getWieldMesh(*i, this);
1665                         count++;
1666                         percent = (count * 100 / size * 0.2) + 80;
1667                         draw_load_screen(text, device, guienv, 0, percent);
1668                 }
1669                 delete[] text;
1670         }
1671
1672         // Start mesh update thread after setting up content definitions
1673         infostream<<"- Starting mesh update thread"<<std::endl;
1674         m_mesh_update_thread.Start();
1675
1676         m_state = LC_Ready;
1677         sendReady();
1678         text = wgettext("Done!");
1679         draw_load_screen(text, device, guienv, 0, 100);
1680         infostream<<"Client::afterContentReceived() done"<<std::endl;
1681         delete[] text;
1682 }
1683
1684 float Client::getRTT(void)
1685 {
1686         return m_con.getPeerStat(PEER_ID_SERVER,con::AVG_RTT);
1687 }
1688
1689 float Client::getCurRate(void)
1690 {
1691         return ( m_con.getLocalStat(con::CUR_INC_RATE) +
1692                         m_con.getLocalStat(con::CUR_DL_RATE));
1693 }
1694
1695 float Client::getAvgRate(void)
1696 {
1697         return ( m_con.getLocalStat(con::AVG_INC_RATE) +
1698                         m_con.getLocalStat(con::AVG_DL_RATE));
1699 }
1700
1701 void Client::makeScreenshot(IrrlichtDevice *device)
1702 {
1703         irr::video::IVideoDriver *driver = device->getVideoDriver();
1704         irr::video::IImage* const raw_image = driver->createScreenShot();
1705
1706         if (!raw_image)
1707                 return;
1708
1709         time_t t = time(NULL);
1710         struct tm *tm = localtime(&t);
1711
1712         char timetstamp_c[64];
1713         strftime(timetstamp_c, sizeof(timetstamp_c), "%FT%T", tm);
1714
1715         std::string filename_base = g_settings->get("screenshot_path")
1716                         + DIR_DELIM
1717                         + std::string("screenshot_")
1718                         + std::string(timetstamp_c);
1719         std::string filename_ext = ".png";
1720         std::string filename;
1721
1722         // Try to find a unique filename
1723         unsigned serial = 0;
1724
1725         while (serial < SCREENSHOT_MAX_SERIAL_TRIES) {
1726                 filename = filename_base + (serial > 0 ? ("-" + itos(serial)) : "") + filename_ext;
1727                 std::ifstream tmp(filename.c_str());
1728                 if (!tmp.good())
1729                         break;  // File did not apparently exist, we'll go with it
1730                 serial++;
1731         }
1732
1733         if (serial == SCREENSHOT_MAX_SERIAL_TRIES) {
1734                 infostream << "Could not find suitable filename for screenshot" << std::endl;
1735         } else {
1736                 irr::video::IImage* const image =
1737                                 driver->createImage(video::ECF_R8G8B8, raw_image->getDimension());
1738
1739                 if (image) {
1740                         raw_image->copyTo(image);
1741
1742                         std::ostringstream sstr;
1743                         if (driver->writeImageToFile(image, filename.c_str())) {
1744                                 sstr << "Saved screenshot to '" << filename << "'";
1745                         } else {
1746                                 sstr << "Failed to save screenshot '" << filename << "'";
1747                         }
1748                         m_chat_queue.push(narrow_to_wide(sstr.str()));
1749                         infostream << sstr.str() << std::endl;
1750                         image->drop();
1751                 }
1752         }
1753
1754         raw_image->drop();
1755 }
1756
1757 // IGameDef interface
1758 // Under envlock
1759 IItemDefManager* Client::getItemDefManager()
1760 {
1761         return m_itemdef;
1762 }
1763 INodeDefManager* Client::getNodeDefManager()
1764 {
1765         return m_nodedef;
1766 }
1767 ICraftDefManager* Client::getCraftDefManager()
1768 {
1769         return NULL;
1770         //return m_craftdef;
1771 }
1772 ITextureSource* Client::getTextureSource()
1773 {
1774         return m_tsrc;
1775 }
1776 IShaderSource* Client::getShaderSource()
1777 {
1778         return m_shsrc;
1779 }
1780 scene::ISceneManager* Client::getSceneManager()
1781 {
1782         return m_device->getSceneManager();
1783 }
1784 u16 Client::allocateUnknownNodeId(const std::string &name)
1785 {
1786         errorstream << "Client::allocateUnknownNodeId(): "
1787                         << "Client cannot allocate node IDs" << std::endl;
1788         FATAL_ERROR("Client allocated unknown node");
1789
1790         return CONTENT_IGNORE;
1791 }
1792 ISoundManager* Client::getSoundManager()
1793 {
1794         return m_sound;
1795 }
1796 MtEventManager* Client::getEventManager()
1797 {
1798         return m_event;
1799 }
1800
1801 ParticleManager* Client::getParticleManager()
1802 {
1803         return &m_particle_manager;
1804 }
1805
1806 scene::IAnimatedMesh* Client::getMesh(const std::string &filename)
1807 {
1808         std::map<std::string, std::string>::const_iterator i =
1809                         m_mesh_data.find(filename);
1810         if(i == m_mesh_data.end()){
1811                 errorstream<<"Client::getMesh(): Mesh not found: \""<<filename<<"\""
1812                                 <<std::endl;
1813                 return NULL;
1814         }
1815         const std::string &data    = i->second;
1816         scene::ISceneManager *smgr = m_device->getSceneManager();
1817
1818         // Create the mesh, remove it from cache and return it
1819         // This allows unique vertex colors and other properties for each instance
1820         Buffer<char> data_rw(data.c_str(), data.size()); // Const-incorrect Irrlicht
1821         io::IFileSystem *irrfs = m_device->getFileSystem();
1822         io::IReadFile *rfile   = irrfs->createMemoryReadFile(
1823                         *data_rw, data_rw.getSize(), filename.c_str());
1824         FATAL_ERROR_IF(!rfile, "Could not create/open RAM file");
1825
1826         scene::IAnimatedMesh *mesh = smgr->getMesh(rfile);
1827         rfile->drop();
1828         // NOTE: By playing with Irrlicht refcounts, maybe we could cache a bunch
1829         // of uniquely named instances and re-use them
1830         mesh->grab();
1831         smgr->getMeshCache()->removeMesh(mesh);
1832         return mesh;
1833 }