src/client.cpp

   1 /*
   2 Minetest-c55
   3 Copyright (C) 2010 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 General Public License as published by
   7 the Free Software Foundation; either version 2 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 General Public License for more details.
  14
  15 You should have received a copy of the GNU 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 "client.h"
  21 #include "utility.h"
  22 #include <iostream>
  23 #include "clientserver.h"
  24 #include "jmutexautolock.h"
  25 #include "main.h"
  26 #include <sstream>
  27 #include "porting.h"
  28
  29 void * ClientUpdateThread::Thread()
  30 {
  31         ThreadStarted();
  32
  33         DSTACK(__FUNCTION_NAME);
  34
  35         BEGIN_DEBUG_EXCEPTION_HANDLER
  36
  37         while(getRun())
  38         {
  39                 m_client->asyncStep();
  40
  41                 //m_client->updateSomeExpiredMeshes();
  42
  43                 bool was = m_client->AsyncProcessData();
  44
  45                 if(was == false)
  46                         sleep_ms(10);
  47         }
  48
  49         END_DEBUG_EXCEPTION_HANDLER
  50
  51         return NULL;
  52 }
  53
  54 Client::Client(
  55                 IrrlichtDevice *device,
  56                 const char *playername,
  57                 MapDrawControl &control):
  58         m_thread(this),
  59         m_env(new ClientMap(this, control,
  60                         device->getSceneManager()->getRootSceneNode(),
  61                         device->getSceneManager(), 666),
  62                         dout_client),
  63         m_con(PROTOCOL_ID, 512, CONNECTION_TIMEOUT, this),
  64         m_device(device),
  65         camera_position(0,0,0),
  66         camera_direction(0,0,1),
  67         m_server_ser_ver(SER_FMT_VER_INVALID),
  68         m_step_dtime(0.0),
  69         m_inventory_updated(false),
  70         m_time_of_day(0)
  71 {
  72         m_packetcounter_timer = 0.0;
  73         m_delete_unused_sectors_timer = 0.0;
  74         m_connection_reinit_timer = 0.0;
  75         m_avg_rtt_timer = 0.0;
  76         m_playerpos_send_timer = 0.0;
  77
  78         //m_fetchblock_mutex.Init();
  79         m_incoming_queue_mutex.Init();
  80         m_env_mutex.Init();
  81         m_con_mutex.Init();
  82         m_step_dtime_mutex.Init();
  83
  84         m_thread.Start();
  85
  86         {
  87                 JMutexAutoLock envlock(m_env_mutex);
  88                 //m_env.getMap().StartUpdater();
  89
  90                 Player *player = new LocalPlayer();
  91
  92                 player->updateName(playername);
  93
  94                 /*f32 y = BS*2 + BS*20;
  95                 player->setPosition(v3f(0, y, 0));*/
  96                 //player->setPosition(v3f(0, y, 30900*BS)); // DEBUG
  97                 m_env.addPlayer(player);
  98         }
  99 }
 100
 101 Client::~Client()
 102 {
 103         {
 104                 JMutexAutoLock conlock(m_con_mutex);
 105                 m_con.Disconnect();
 106         }
 107
 108         m_thread.setRun(false);
 109         while(m_thread.IsRunning())
 110                 sleep_ms(100);
 111 }
 112
 113 void Client::connect(Address address)
 114 {
 115         DSTACK(__FUNCTION_NAME);
 116         JMutexAutoLock lock(m_con_mutex);
 117         m_con.setTimeoutMs(0);
 118         m_con.Connect(address);
 119 }
 120
 121 bool Client::connectedAndInitialized()
 122 {
 123         JMutexAutoLock lock(m_con_mutex);
 124
 125         if(m_con.Connected() == false)
 126                 return false;
 127
 128         if(m_server_ser_ver == SER_FMT_VER_INVALID)
 129                 return false;
 130
 131         return true;
 132 }
 133
 134 void Client::step(float dtime)
 135 {
 136         DSTACK(__FUNCTION_NAME);
 137
 138         // Limit a bit
 139         if(dtime > 2.0)
 140                 dtime = 2.0;
 141
 142         /*
 143                 Day/night
 144         */
 145         {
 146                 s32 d = 8;
 147                 s32 t = (((m_time_of_day.get() + 24000/d/2)%24000)/(24000/d));
 148                 s32 dn = 0;
 149                 if(t == d/4 || t == (d-d/4))
 150                         dn = 1;
 151                 else if(t < d/4 || t > (d-d/4))
 152                         dn = 2;
 153                 else
 154                         dn = 0;
 155
 156                 u32 dr = 1000;
 157                 if(dn == 0)
 158                         dr = 1000;
 159                 if(dn == 1)
 160                         dr = 600;
 161                 if(dn == 2)
 162                         dr = 300;
 163
 164                 if(dr != m_env.getDayNightRatio())
 165                 {
 166                         //dstream<<"dr="<<dr<<std::endl;
 167                         dout_client<<DTIME<<"Client: changing day-night ratio"<<std::endl;
 168                         m_env.setDayNightRatio(dr);
 169                         m_env.expireMeshes(true);
 170                 }
 171         }
 172
 173
 174         //dstream<<"Client steps "<<dtime<<std::endl;
 175
 176         {
 177                 //TimeTaker timer("ReceiveAll()", m_device);
 178                 // 0ms
 179                 ReceiveAll();
 180         }
 181
 182         {
 183                 //TimeTaker timer("m_con_mutex + m_con.RunTimeouts()", m_device);
 184                 // 0ms
 185                 JMutexAutoLock lock(m_con_mutex);
 186                 m_con.RunTimeouts(dtime);
 187         }
 188
 189         /*
 190                 Packet counter
 191         */
 192         {
 193                 float &counter = m_packetcounter_timer;
 194                 counter -= dtime;
 195                 if(counter <= 0.0)
 196                 {
 197                         counter = 20.0;
 198
 199                         dout_client<<"Client packetcounter (20s):"<<std::endl;
 200                         m_packetcounter.print(dout_client);
 201                         m_packetcounter.clear();
 202                 }
 203         }
 204
 205         {
 206                 /*
 207                         Delete unused sectors
 208
 209                         NOTE: This jams the game for a while because deleting sectors
 210                               clear caches
 211                 */
 212
 213                 float &counter = m_delete_unused_sectors_timer;
 214                 counter -= dtime;
 215                 if(counter <= 0.0)
 216                 {
 217                         // 3 minute interval
 218                         //counter = 180.0;
 219                         counter = 60.0;
 220
 221                         JMutexAutoLock lock(m_env_mutex);
 222
 223                         core::list<v3s16> deleted_blocks;
 224
 225                         float delete_unused_sectors_timeout =
 226                                 g_settings.getFloat("client_delete_unused_sectors_timeout");
 227
 228                         // Delete sector blocks
 229                         /*u32 num = m_env.getMap().deleteUnusedSectors
 230                                         (delete_unused_sectors_timeout,
 231                                         true, &deleted_blocks);*/
 232
 233                         // Delete whole sectors
 234                         u32 num = m_env.getMap().deleteUnusedSectors
 235                                         (delete_unused_sectors_timeout,
 236                                         false, &deleted_blocks);
 237
 238                         if(num > 0)
 239                         {
 240                                 /*dstream<<DTIME<<"Client: Deleted blocks of "<<num
 241                                                 <<" unused sectors"<<std::endl;*/
 242                                 dstream<<DTIME<<"Client: Deleted "<<num
 243                                                 <<" unused sectors"<<std::endl;
 244
 245                                 /*
 246                                         Send info to server
 247                                 */
 248
 249                                 // Env is locked so con can be locked.
 250                                 JMutexAutoLock lock(m_con_mutex);
 251
 252                                 core::list<v3s16>::Iterator i = deleted_blocks.begin();
 253                                 core::list<v3s16> sendlist;
 254                                 for(;;)
 255                                 {
 256                                         if(sendlist.size() == 255 || i == deleted_blocks.end())
 257                                         {
 258                                                 if(sendlist.size() == 0)
 259                                                         break;
 260                                                 /*
 261                                                         [0] u16 command
 262                                                         [2] u8 count
 263                                                         [3] v3s16 pos_0
 264                                                         [3+6] v3s16 pos_1
 265                                                         ...
 266                                                 */
 267                                                 u32 replysize = 2+1+6*sendlist.size();
 268                                                 SharedBuffer<u8> reply(replysize);
 269                                                 writeU16(&reply[0], TOSERVER_DELETEDBLOCKS);
 270                                                 reply[2] = sendlist.size();
 271                                                 u32 k = 0;
 272                                                 for(core::list<v3s16>::Iterator
 273                                                                 j = sendlist.begin();
 274                                                                 j != sendlist.end(); j++)
 275                                                 {
 276                                                         writeV3S16(&reply[2+1+6*k], *j);
 277                                                         k++;
 278                                                 }
 279                                                 m_con.Send(PEER_ID_SERVER, 1, reply, true);
 280
 281                                                 if(i == deleted_blocks.end())
 282                                                         break;
 283
 284                                                 sendlist.clear();
 285                                         }
 286
 287                                         sendlist.push_back(*i);
 288                                         i++;
 289                                 }
 290                         }
 291                 }
 292         }
 293
 294         bool connected = connectedAndInitialized();
 295
 296         if(connected == false)
 297         {
 298                 float &counter = m_connection_reinit_timer;
 299                 counter -= dtime;
 300                 if(counter <= 0.0)
 301                 {
 302                         counter = 2.0;
 303
 304                         JMutexAutoLock envlock(m_env_mutex);
 305
 306                         Player *myplayer = m_env.getLocalPlayer();
 307                         assert(myplayer != NULL);
 308
 309                         // Send TOSERVER_INIT
 310                         // [0] u16 TOSERVER_INIT
 311                         // [2] u8 SER_FMT_VER_HIGHEST
 312                         // [3] u8[20] player_name
 313                         SharedBuffer<u8> data(2+1+20);
 314                         writeU16(&data[0], TOSERVER_INIT);
 315                         writeU8(&data[2], SER_FMT_VER_HIGHEST);
 316                         memcpy(&data[3], myplayer->getName(), 20);
 317                         // Send as unreliable
 318                         Send(0, data, false);
 319                 }
 320
 321                 // Not connected, return
 322                 return;
 323         }
 324
 325         /*
 326                 Do stuff if connected
 327         */
 328
 329         {
 330                 // 0ms
 331                 JMutexAutoLock lock(m_env_mutex);
 332
 333                 // Control local player (0ms)
 334                 LocalPlayer *player = m_env.getLocalPlayer();
 335                 assert(player != NULL);
 336                 player->applyControl(dtime);
 337
 338                 //TimeTaker envtimer("env step", m_device);
 339                 // Step environment
 340                 m_env.step(dtime);
 341
 342                 // Step active blocks
 343                 for(core::map<v3s16, bool>::Iterator
 344                                 i = m_active_blocks.getIterator();
 345                                 i.atEnd() == false; i++)
 346                 {
 347                         v3s16 p = i.getNode()->getKey();
 348
 349                         MapBlock *block = NULL;
 350                         try
 351                         {
 352                                 block = m_env.getMap().getBlockNoCreate(p);
 353                                 block->stepObjects(dtime, false, m_env.getDayNightRatio());
 354                         }
 355                         catch(InvalidPositionException &e)
 356                         {
 357                         }
 358                 }
 359         }
 360
 361         {
 362                 float &counter = m_avg_rtt_timer;
 363                 counter += dtime;
 364                 if(counter >= 10)
 365                 {
 366                         counter = 0.0;
 367                         JMutexAutoLock lock(m_con_mutex);
 368                         // connectedAndInitialized() is true, peer exists.
 369                         con::Peer *peer = m_con.GetPeer(PEER_ID_SERVER);
 370                         dstream<<DTIME<<"Client: avg_rtt="<<peer->avg_rtt<<std::endl;
 371                 }
 372         }
 373         {
 374                 float &counter = m_playerpos_send_timer;
 375                 counter += dtime;
 376                 if(counter >= 0.2)
 377                 {
 378                         counter = 0.0;
 379                         sendPlayerPos();
 380                 }
 381         }
 382
 383         /*{
 384                 JMutexAutoLock lock(m_step_dtime_mutex);
 385                 m_step_dtime += dtime;
 386         }*/
 387 }
 388
 389 float Client::asyncStep()
 390 {
 391         DSTACK(__FUNCTION_NAME);
 392         //dstream<<"Client::asyncStep()"<<std::endl;
 393
 394         /*float dtime;
 395         {
 396                 JMutexAutoLock lock1(m_step_dtime_mutex);
 397                 if(m_step_dtime < 0.001)
 398                         return 0.0;
 399                 dtime = m_step_dtime;
 400                 m_step_dtime = 0.0;
 401         }
 402
 403         return dtime;*/
 404         return 0.0;
 405 }
 406
 407 // Virtual methods from con::PeerHandler
 408 void Client::peerAdded(con::Peer *peer)
 409 {
 410         derr_client<<"Client::peerAdded(): peer->id="
 411                         <<peer->id<<std::endl;
 412 }
 413 void Client::deletingPeer(con::Peer *peer, bool timeout)
 414 {
 415         derr_client<<"Client::deletingPeer(): "
 416                         "Server Peer is getting deleted "
 417                         <<"(timeout="<<timeout<<")"<<std::endl;
 418 }
 419
 420 void Client::ReceiveAll()
 421 {
 422         DSTACK(__FUNCTION_NAME);
 423         for(;;)
 424         {
 425                 try{
 426                         Receive();
 427                 }
 428                 catch(con::NoIncomingDataException &e)
 429                 {
 430                         break;
 431                 }
 432                 catch(con::InvalidIncomingDataException &e)
 433                 {
 434                         dout_client<<DTIME<<"Client::ReceiveAll(): "
 435                                         "InvalidIncomingDataException: what()="
 436                                         <<e.what()<<std::endl;
 437                 }
 438         }
 439 }
 440
 441 void Client::Receive()
 442 {
 443         DSTACK(__FUNCTION_NAME);
 444         u32 data_maxsize = 10000;
 445         Buffer<u8> data(data_maxsize);
 446         u16 sender_peer_id;
 447         u32 datasize;
 448         {
 449                 //TimeTaker t1("con mutex and receive", m_device);
 450                 JMutexAutoLock lock(m_con_mutex);
 451                 datasize = m_con.Receive(sender_peer_id, *data, data_maxsize);
 452         }
 453         //TimeTaker t1("ProcessData", m_device);
 454         ProcessData(*data, datasize, sender_peer_id);
 455 }
 456
 457 /*
 458         sender_peer_id given to this shall be quaranteed to be a valid peer
 459 */
 460 void Client::ProcessData(u8 *data, u32 datasize, u16 sender_peer_id)
 461 {
 462         DSTACK(__FUNCTION_NAME);
 463
 464         // Ignore packets that don't even fit a command
 465         if(datasize < 2)
 466         {
 467                 m_packetcounter.add(60000);
 468                 return;
 469         }
 470
 471         ToClientCommand command = (ToClientCommand)readU16(&data[0]);
 472
 473         //dstream<<"Client: received command="<<command<<std::endl;
 474         m_packetcounter.add((u16)command);
 475
 476         /*
 477                 If this check is removed, be sure to change the queue
 478                 system to know the ids
 479         */
 480         if(sender_peer_id != PEER_ID_SERVER)
 481         {
 482                 dout_client<<DTIME<<"Client::ProcessData(): Discarding data not "
 483                                 "coming from server: peer_id="<<sender_peer_id
 484                                 <<std::endl;
 485                 return;
 486         }
 487
 488         con::Peer *peer;
 489         {
 490                 JMutexAutoLock lock(m_con_mutex);
 491                 // All data is coming from the server
 492                 // PeerNotFoundException is handled by caller.
 493                 peer = m_con.GetPeer(PEER_ID_SERVER);
 494         }
 495
 496         u8 ser_version = m_server_ser_ver;
 497
 498         //dstream<<"Client received command="<<(int)command<<std::endl;
 499
 500         // Execute fast commands straight away
 501
 502         if(command == TOCLIENT_INIT)
 503         {
 504                 if(datasize < 3)
 505                         return;
 506
 507                 u8 deployed = data[2];
 508
 509                 dout_client<<DTIME<<"Client: TOCLIENT_INIT received with "
 510                                 "deployed="<<((int)deployed&0xff)<<std::endl;
 511
 512                 if(deployed < SER_FMT_VER_LOWEST
 513                                 || deployed > SER_FMT_VER_HIGHEST)
 514                 {
 515                         derr_client<<DTIME<<"Client: TOCLIENT_INIT: Server sent "
 516                                         <<"unsupported ser_fmt_ver"<<std::endl;
 517                         return;
 518                 }
 519
 520                 m_server_ser_ver = deployed;
 521
 522                 // Get player position
 523                 v3s16 playerpos_s16(0, BS*2+BS*20, 0);
 524                 if(datasize >= 2+1+6)
 525                         playerpos_s16 = readV3S16(&data[2+1]);
 526                 v3f playerpos_f = intToFloat(playerpos_s16) - v3f(0, BS/2, 0);
 527
 528                 { //envlock
 529                         JMutexAutoLock envlock(m_env_mutex);
 530
 531                         // Set player position
 532                         Player *player = m_env.getLocalPlayer();
 533                         assert(player != NULL);
 534                         player->setPosition(playerpos_f);
 535                 }
 536
 537                 // Reply to server
 538                 u32 replysize = 2;
 539                 SharedBuffer<u8> reply(replysize);
 540                 writeU16(&reply[0], TOSERVER_INIT2);
 541                 // Send as reliable
 542                 m_con.Send(PEER_ID_SERVER, 1, reply, true);
 543
 544                 return;
 545         }
 546
 547         if(ser_version == SER_FMT_VER_INVALID)
 548         {
 549                 dout_client<<DTIME<<"WARNING: Client: Server serialization"
 550                                 " format invalid or not initialized."
 551                                 " Skipping incoming command="<<command<<std::endl;
 552                 return;
 553         }
 554
 555         // Just here to avoid putting the two if's together when
 556         // making some copypasta
 557         {}
 558
 559         if(command == TOCLIENT_REMOVENODE)
 560         {
 561                 if(datasize < 8)
 562                         return;
 563                 v3s16 p;
 564                 p.X = readS16(&data[2]);
 565                 p.Y = readS16(&data[4]);
 566                 p.Z = readS16(&data[6]);
 567
 568                 //TimeTaker t1("TOCLIENT_REMOVENODE", g_device);
 569
 570                 // This will clear the cracking animation after digging
 571                 ((ClientMap&)m_env.getMap()).clearTempMod(p);
 572
 573                 removeNode(p);
 574         }
 575         else if(command == TOCLIENT_ADDNODE)
 576         {
 577                 if(datasize < 8 + MapNode::serializedLength(ser_version))
 578                         return;
 579
 580                 v3s16 p;
 581                 p.X = readS16(&data[2]);
 582                 p.Y = readS16(&data[4]);
 583                 p.Z = readS16(&data[6]);
 584
 585                 //TimeTaker t1("TOCLIENT_ADDNODE", g_device);
 586
 587                 MapNode n;
 588                 n.deSerialize(&data[8], ser_version);
 589
 590                 addNode(p, n);
 591         }
 592         else if(command == TOCLIENT_PLAYERPOS)
 593         {
 594                 dstream<<"WARNING: Received deprecated TOCLIENT_PLAYERPOS"
 595                                 <<std::endl;
 596                 /*u16 our_peer_id;
 597                 {
 598                         JMutexAutoLock lock(m_con_mutex);
 599                         our_peer_id = m_con.GetPeerID();
 600                 }
 601                 // Cancel if we don't have a peer id
 602                 if(our_peer_id == PEER_ID_NEW){
 603                         dout_client<<DTIME<<"TOCLIENT_PLAYERPOS cancelled: "
 604                                         "we have no peer id"
 605                                         <<std::endl;
 606                         return;
 607                 }*/
 608
 609                 { //envlock
 610                         JMutexAutoLock envlock(m_env_mutex);
 611
 612                         u32 player_size = 2+12+12+4+4;
 613
 614                         u32 player_count = (datasize-2) / player_size;
 615                         u32 start = 2;
 616                         for(u32 i=0; i<player_count; i++)
 617                         {
 618                                 u16 peer_id = readU16(&data[start]);
 619
 620                                 Player *player = m_env.getPlayer(peer_id);
 621
 622                                 // Skip if player doesn't exist
 623                                 if(player == NULL)
 624                                 {
 625                                         start += player_size;
 626                                         continue;
 627                                 }
 628
 629                                 // Skip if player is local player
 630                                 if(player->isLocal())
 631                                 {
 632                                         start += player_size;
 633                                         continue;
 634                                 }
 635
 636                                 v3s32 ps = readV3S32(&data[start+2]);
 637                                 v3s32 ss = readV3S32(&data[start+2+12]);
 638                                 s32 pitch_i = readS32(&data[start+2+12+12]);
 639                                 s32 yaw_i = readS32(&data[start+2+12+12+4]);
 640                                 /*dstream<<"Client: got "
 641                                                 <<"pitch_i="<<pitch_i
 642                                                 <<" yaw_i="<<yaw_i<<std::endl;*/
 643                                 f32 pitch = (f32)pitch_i / 100.0;
 644                                 f32 yaw = (f32)yaw_i / 100.0;
 645                                 v3f position((f32)ps.X/100., (f32)ps.Y/100., (f32)ps.Z/100.);
 646                                 v3f speed((f32)ss.X/100., (f32)ss.Y/100., (f32)ss.Z/100.);
 647                                 player->setPosition(position);
 648                                 player->setSpeed(speed);
 649                                 player->setPitch(pitch);
 650                                 player->setYaw(yaw);
 651
 652                                 /*dstream<<"Client: player "<<peer_id
 653                                                 <<" pitch="<<pitch
 654                                                 <<" yaw="<<yaw<<std::endl;*/
 655
 656                                 start += player_size;
 657                         }
 658                 } //envlock
 659         }
 660         else if(command == TOCLIENT_PLAYERINFO)
 661         {
 662                 u16 our_peer_id;
 663                 {
 664                         JMutexAutoLock lock(m_con_mutex);
 665                         our_peer_id = m_con.GetPeerID();
 666                 }
 667                 // Cancel if we don't have a peer id
 668                 if(our_peer_id == PEER_ID_NEW){
 669                         dout_client<<DTIME<<"TOCLIENT_PLAYERINFO cancelled: "
 670                                         "we have no peer id"
 671                                         <<std::endl;
 672                         return;
 673                 }
 674
 675                 //dstream<<DTIME<<"Client: Server reports players:"<<std::endl;
 676
 677                 { //envlock
 678                         JMutexAutoLock envlock(m_env_mutex);
 679
 680                         u32 item_size = 2+PLAYERNAME_SIZE;
 681                         u32 player_count = (datasize-2) / item_size;
 682                         u32 start = 2;
 683                         // peer_ids
 684                         core::list<u16> players_alive;
 685                         for(u32 i=0; i<player_count; i++)
 686                         {
 687                                 // Make sure the name ends in '\0'
 688                                 data[start+2+20-1] = 0;
 689
 690                                 u16 peer_id = readU16(&data[start]);
 691
 692                                 players_alive.push_back(peer_id);
 693
 694                                 /*dstream<<DTIME<<"peer_id="<<peer_id
 695                                                 <<" name="<<((char*)&data[start+2])<<std::endl;*/
 696
 697                                 // Don't update the info of the local player
 698                                 if(peer_id == our_peer_id)
 699                                 {
 700                                         start += item_size;
 701                                         continue;
 702                                 }
 703
 704                                 Player *player = m_env.getPlayer(peer_id);
 705
 706                                 // Create a player if it doesn't exist
 707                                 if(player == NULL)
 708                                 {
 709                                         player = new RemotePlayer(
 710                                                         m_device->getSceneManager()->getRootSceneNode(),
 711                                                         m_device,
 712                                                         -1);
 713                                         player->peer_id = peer_id;
 714                                         m_env.addPlayer(player);
 715                                         dout_client<<DTIME<<"Client: Adding new player "
 716                                                         <<peer_id<<std::endl;
 717                                 }
 718
 719                                 player->updateName((char*)&data[start+2]);
 720
 721                                 start += item_size;
 722                         }
 723
 724                         /*
 725                                 Remove those players from the environment that
 726                                 weren't listed by the server.
 727                         */
 728                         //dstream<<DTIME<<"Removing dead players"<<std::endl;
 729                         core::list<Player*> players = m_env.getPlayers();
 730                         core::list<Player*>::Iterator ip;
 731                         for(ip=players.begin(); ip!=players.end(); ip++)
 732                         {
 733                                 // Ingore local player
 734                                 if((*ip)->isLocal())
 735                                         continue;
 736
 737                                 // Warn about a special case
 738                                 if((*ip)->peer_id == 0)
 739                                 {
 740                                         dstream<<DTIME<<"WARNING: Client: Removing "
 741                                                         "dead player with id=0"<<std::endl;
 742                                 }
 743
 744                                 bool is_alive = false;
 745                                 core::list<u16>::Iterator i;
 746                                 for(i=players_alive.begin(); i!=players_alive.end(); i++)
 747                                 {
 748                                         if((*ip)->peer_id == *i)
 749                                         {
 750                                                 is_alive = true;
 751                                                 break;
 752                                         }
 753                                 }
 754                                 /*dstream<<DTIME<<"peer_id="<<((*ip)->peer_id)
 755                                                 <<" is_alive="<<is_alive<<std::endl;*/
 756                                 if(is_alive)
 757                                         continue;
 758                                 dstream<<DTIME<<"Removing dead player "<<(*ip)->peer_id
 759                                                 <<std::endl;
 760                                 m_env.removePlayer((*ip)->peer_id);
 761                         }
 762                 } //envlock
 763         }
 764         else if(command == TOCLIENT_SECTORMETA)
 765         {
 766                 /*
 767                         [0] u16 command
 768                         [2] u8 sector count
 769                         [3...] v2s16 pos + sector metadata
 770                 */
 771                 if(datasize < 3)
 772                         return;
 773
 774                 //dstream<<"Client received TOCLIENT_SECTORMETA"<<std::endl;
 775
 776                 { //envlock
 777                         JMutexAutoLock envlock(m_env_mutex);
 778
 779                         std::string datastring((char*)&data[2], datasize-2);
 780                         std::istringstream is(datastring, std::ios_base::binary);
 781
 782                         u8 buf[4];
 783
 784                         is.read((char*)buf, 1);
 785                         u16 sector_count = readU8(buf);
 786
 787                         //dstream<<"sector_count="<<sector_count<<std::endl;
 788
 789                         for(u16 i=0; i<sector_count; i++)
 790                         {
 791                                 // Read position
 792                                 is.read((char*)buf, 4);
 793                                 v2s16 pos = readV2S16(buf);
 794                                 /*dstream<<"Client: deserializing sector at "
 795                                                 <<"("<<pos.X<<","<<pos.Y<<")"<<std::endl;*/
 796                                 // Create sector
 797                                 assert(m_env.getMap().mapType() == MAPTYPE_CLIENT);
 798                                 ((ClientMap&)m_env.getMap()).deSerializeSector(pos, is);
 799                         }
 800                 } //envlock
 801         }
 802         else if(command == TOCLIENT_INVENTORY)
 803         {
 804                 if(datasize < 3)
 805                         return;
 806
 807                 //TimeTaker t1("Parsing TOCLIENT_INVENTORY", m_device);
 808
 809                 { //envlock
 810                         //TimeTaker t2("mutex locking", m_device);
 811                         JMutexAutoLock envlock(m_env_mutex);
 812                         //t2.stop();
 813
 814                         //TimeTaker t3("istringstream init", m_device);
 815                         std::string datastring((char*)&data[2], datasize-2);
 816                         std::istringstream is(datastring, std::ios_base::binary);
 817                         //t3.stop();
 818
 819                         //m_env.printPlayers(dstream);
 820
 821                         //TimeTaker t4("player get", m_device);
 822                         Player *player = m_env.getLocalPlayer();
 823                         assert(player != NULL);
 824                         //t4.stop();
 825
 826                         //TimeTaker t1("inventory.deSerialize()", m_device);
 827                         player->inventory.deSerialize(is);
 828                         //t1.stop();
 829
 830                         m_inventory_updated = true;
 831
 832                         //dstream<<"Client got player inventory:"<<std::endl;
 833                         //player->inventory.print(dstream);
 834                 }
 835         }
 836         //DEBUG
 837         else if(command == TOCLIENT_OBJECTDATA)
 838         //else if(0)
 839         {
 840                 // Strip command word and create a stringstream
 841                 std::string datastring((char*)&data[2], datasize-2);
 842                 std::istringstream is(datastring, std::ios_base::binary);
 843
 844                 { //envlock
 845
 846                 JMutexAutoLock envlock(m_env_mutex);
 847
 848                 u8 buf[12];
 849
 850                 /*
 851                         Read players
 852                 */
 853
 854                 is.read((char*)buf, 2);
 855                 u16 playercount = readU16(buf);
 856
 857                 for(u16 i=0; i<playercount; i++)
 858                 {
 859                         is.read((char*)buf, 2);
 860                         u16 peer_id = readU16(buf);
 861                         is.read((char*)buf, 12);
 862                         v3s32 p_i = readV3S32(buf);
 863                         is.read((char*)buf, 12);
 864                         v3s32 s_i = readV3S32(buf);
 865                         is.read((char*)buf, 4);
 866                         s32 pitch_i = readS32(buf);
 867                         is.read((char*)buf, 4);
 868                         s32 yaw_i = readS32(buf);
 869
 870                         Player *player = m_env.getPlayer(peer_id);
 871
 872                         // Skip if player doesn't exist
 873                         if(player == NULL)
 874                         {
 875                                 continue;
 876                         }
 877
 878                         // Skip if player is local player
 879                         if(player->isLocal())
 880                         {
 881                                 continue;
 882                         }
 883
 884                         f32 pitch = (f32)pitch_i / 100.0;
 885                         f32 yaw = (f32)yaw_i / 100.0;
 886                         v3f position((f32)p_i.X/100., (f32)p_i.Y/100., (f32)p_i.Z/100.);
 887                         v3f speed((f32)s_i.X/100., (f32)s_i.Y/100., (f32)s_i.Z/100.);
 888
 889                         player->setPosition(position);
 890                         player->setSpeed(speed);
 891                         player->setPitch(pitch);
 892                         player->setYaw(yaw);
 893                 }
 894
 895                 /*
 896                         Read block objects
 897                 */
 898
 899                 // Read active block count
 900                 is.read((char*)buf, 2);
 901                 u16 blockcount = readU16(buf);
 902
 903                 // Initialize delete queue with all active blocks
 904                 core::map<v3s16, bool> abs_to_delete;
 905                 for(core::map<v3s16, bool>::Iterator
 906                                 i = m_active_blocks.getIterator();
 907                                 i.atEnd() == false; i++)
 908                 {
 909                         v3s16 p = i.getNode()->getKey();
 910                         /*dstream<<"adding "
 911                                         <<"("<<p.x<<","<<p.y<<","<<p.z<<") "
 912                                         <<" to abs_to_delete"
 913                                         <<std::endl;*/
 914                         abs_to_delete.insert(p, true);
 915                 }
 916
 917                 /*dstream<<"Initial delete queue size: "<<abs_to_delete.size()
 918                                 <<std::endl;*/
 919
 920                 for(u16 i=0; i<blockcount; i++)
 921                 {
 922                         // Read blockpos
 923                         is.read((char*)buf, 6);
 924                         v3s16 p = readV3S16(buf);
 925                         // Get block from somewhere
 926                         MapBlock *block = NULL;
 927                         try{
 928                                 block = m_env.getMap().getBlockNoCreate(p);
 929                         }
 930                         catch(InvalidPositionException &e)
 931                         {
 932                                 //TODO: Create a dummy block?
 933                         }
 934                         if(block == NULL)
 935                         {
 936                                 dstream<<"WARNING: "
 937                                                 <<"Could not get block at blockpos "
 938                                                 <<"("<<p.X<<","<<p.Y<<","<<p.Z<<") "
 939                                                 <<"in TOCLIENT_OBJECTDATA. Ignoring "
 940                                                 <<"following block object data."
 941                                                 <<std::endl;
 942                                 return;
 943                         }
 944
 945                         /*dstream<<"Client updating objects for block "
 946                                         <<"("<<p.X<<","<<p.Y<<","<<p.Z<<")"
 947                                         <<std::endl;*/
 948
 949                         // Insert to active block list
 950                         m_active_blocks.insert(p, true);
 951
 952                         // Remove from deletion queue
 953                         if(abs_to_delete.find(p) != NULL)
 954                                 abs_to_delete.remove(p);
 955
 956                         /*
 957                                 Update objects of block
 958
 959                                 NOTE: Be sure this is done in the main thread.
 960                         */
 961                         block->updateObjects(is, m_server_ser_ver,
 962                                         m_device->getSceneManager(), m_env.getDayNightRatio());
 963                 }
 964
 965                 /*dstream<<"Final delete queue size: "<<abs_to_delete.size()
 966                                 <<std::endl;*/
 967
 968                 // Delete objects of blocks in delete queue
 969                 for(core::map<v3s16, bool>::Iterator
 970                                 i = abs_to_delete.getIterator();
 971                                 i.atEnd() == false; i++)
 972                 {
 973                         v3s16 p = i.getNode()->getKey();
 974                         try
 975                         {
 976                                 MapBlock *block = m_env.getMap().getBlockNoCreate(p);
 977
 978                                 // Clear objects
 979                                 block->clearObjects();
 980                                 // Remove from active blocks list
 981                                 m_active_blocks.remove(p);
 982                         }
 983                         catch(InvalidPositionException &e)
 984                         {
 985                                 dstream<<"WARNAING: Client: "
 986                                                 <<"Couldn't clear objects of active->inactive"
 987                                                 <<" block "
 988                                                 <<"("<<p.X<<","<<p.Y<<","<<p.Z<<")"
 989                                                 <<" because block was not found"
 990                                                 <<std::endl;
 991                                 // Ignore
 992                         }
 993                 }
 994
 995                 } //envlock
 996         }
 997         else if(command == TOCLIENT_TIME_OF_DAY)
 998         {
 999                 if(datasize < 4)
1000                         return;
1001
1002                 u16 time = readU16(&data[2]);
1003                 time = time % 24000;
1004                 m_time_of_day.set(time);
1005                 //dstream<<"Client: time="<<time<<std::endl;
1006         }
1007         else if(command == TOCLIENT_CHAT_MESSAGE)
1008         {
1009                 /*
1010                         u16 command
1011                         u16 length
1012                         wstring message
1013                 */
1014                 u8 buf[6];
1015                 std::string datastring((char*)&data[2], datasize-2);
1016                 std::istringstream is(datastring, std::ios_base::binary);
1017
1018                 // Read stuff
1019                 is.read((char*)buf, 2);
1020                 u16 len = readU16(buf);
1021
1022                 std::wstring message;
1023                 for(u16 i=0; i<len; i++)
1024                 {
1025                         is.read((char*)buf, 2);
1026                         message += (wchar_t)readU16(buf);
1027                 }
1028
1029                 /*dstream<<"Client received chat message: "
1030                                 <<wide_to_narrow(message)<<std::endl;*/
1031
1032                 m_chat_queue.push_back(message);
1033         }
1034         // Default to queueing it (for slow commands)
1035         else
1036         {
1037                 JMutexAutoLock lock(m_incoming_queue_mutex);
1038
1039                 IncomingPacket packet(data, datasize);
1040                 m_incoming_queue.push_back(packet);
1041         }
1042 }
1043
1044 /*
1045         Returns true if there was something in queue
1046 */
1047 bool Client::AsyncProcessPacket()
1048 {
1049         DSTACK(__FUNCTION_NAME);
1050
1051         try //for catching con::PeerNotFoundException
1052         {
1053
1054         con::Peer *peer;
1055         {
1056                 JMutexAutoLock lock(m_con_mutex);
1057                 // All data is coming from the server
1058                 peer = m_con.GetPeer(PEER_ID_SERVER);
1059         }
1060
1061         u8 ser_version = m_server_ser_ver;
1062
1063         IncomingPacket packet = getPacket();
1064         u8 *data = packet.m_data;
1065         u32 datasize = packet.m_datalen;
1066
1067         // An empty packet means queue is empty
1068         if(data == NULL){
1069                 return false;
1070         }
1071
1072         if(datasize < 2)
1073                 return true;
1074
1075         ToClientCommand command = (ToClientCommand)readU16(&data[0]);
1076
1077         if(command == TOCLIENT_BLOCKDATA)
1078         {
1079                 // Ignore too small packet
1080                 if(datasize < 8)
1081                         return true;
1082                 /*if(datasize < 8 + MapBlock::serializedLength(ser_version))
1083                         goto getdata;*/
1084
1085                 v3s16 p;
1086                 p.X = readS16(&data[2]);
1087                 p.Y = readS16(&data[4]);
1088                 p.Z = readS16(&data[6]);
1089
1090                 /*dout_client<<DTIME<<"Client: Thread: BLOCKDATA for ("
1091                                 <<p.X<<","<<p.Y<<","<<p.Z<<")"<<std::endl;*/
1092
1093                 /*dstream<<DTIME<<"Client: Thread: BLOCKDATA for ("
1094                                 <<p.X<<","<<p.Y<<","<<p.Z<<")"<<std::endl;*/
1095
1096                 std::string datastring((char*)&data[8], datasize-8);
1097                 std::istringstream istr(datastring, std::ios_base::binary);
1098
1099                 MapSector *sector;
1100                 MapBlock *block;
1101
1102                 { //envlock
1103                         JMutexAutoLock envlock(m_env_mutex);
1104
1105                         v2s16 p2d(p.X, p.Z);
1106                         sector = m_env.getMap().emergeSector(p2d);
1107
1108                         v2s16 sp = sector->getPos();
1109                         if(sp != p2d)
1110                         {
1111                                 dstream<<"ERROR: Got sector with getPos()="
1112                                                 <<"("<<sp.X<<","<<sp.Y<<"), tried to get"
1113                                                 <<"("<<p2d.X<<","<<p2d.Y<<")"<<std::endl;
1114                         }
1115
1116                         assert(sp == p2d);
1117                         //assert(sector->getPos() == p2d);
1118
1119                         try{
1120                                 block = sector->getBlockNoCreate(p.Y);
1121                                 /*
1122                                         Update an existing block
1123                                 */
1124                                 //dstream<<"Updating"<<std::endl;
1125                                 block->deSerialize(istr, ser_version);
1126                                 //block->setChangedFlag();
1127                         }
1128                         catch(InvalidPositionException &e)
1129                         {
1130                                 /*
1131                                         Create a new block
1132                                 */
1133                                 //dstream<<"Creating new"<<std::endl;
1134                                 block = new MapBlock(&m_env.getMap(), p);
1135                                 block->deSerialize(istr, ser_version);
1136                                 sector->insertBlock(block);
1137                                 //block->setChangedFlag();
1138
1139                                 //DEBUG
1140                                 /*NodeMod mod;
1141                                 mod.type = NODEMOD_CHANGECONTENT;
1142                                 mod.param = CONTENT_MESE;
1143                                 block->setTempMod(v3s16(8,10,8), mod);
1144                                 block->setTempMod(v3s16(8,9,8), mod);
1145                                 block->setTempMod(v3s16(8,8,8), mod);
1146                                 block->setTempMod(v3s16(8,7,8), mod);
1147                                 block->setTempMod(v3s16(8,6,8), mod);*/
1148
1149                                 /*
1150                                         Add some coulds
1151                                         Well, this is a dumb way to do it, they should just
1152                                         be drawn as separate objects.
1153                                 */
1154                                 /*if(p.Y == 3)
1155                                 {
1156                                         NodeMod mod;
1157                                         mod.type = NODEMOD_CHANGECONTENT;
1158                                         mod.param = CONTENT_CLOUD;
1159                                         v3s16 p2;
1160                                         p2.Y = 8;
1161                                         for(p2.X=3; p2.X<=13; p2.X++)
1162                                         for(p2.Z=3; p2.Z<=13; p2.Z++)
1163                                         {
1164                                                 block->setTempMod(p2, mod);
1165                                         }
1166                                 }*/
1167                         }
1168                 } //envlock
1169
1170                 /*
1171                         Acknowledge block.
1172                 */
1173                 /*
1174                         [0] u16 command
1175                         [2] u8 count
1176                         [3] v3s16 pos_0
1177                         [3+6] v3s16 pos_1
1178                         ...
1179                 */
1180                 u32 replysize = 2+1+6;
1181                 SharedBuffer<u8> reply(replysize);
1182                 writeU16(&reply[0], TOSERVER_GOTBLOCKS);
1183                 reply[2] = 1;
1184                 writeV3S16(&reply[3], p);
1185                 // Send as reliable
1186                 m_con.Send(PEER_ID_SERVER, 1, reply, true);
1187
1188                 /*
1189                         Update Mesh of this block and blocks at x-, y- and z-.
1190                         Environment should not be locked as it interlocks with the
1191                         main thread, from which is will want to retrieve textures.
1192                 */
1193
1194                 m_env.getMap().updateMeshes(block->getPos(), getDayNightRatio());
1195         }
1196         else
1197         {
1198                 dout_client<<DTIME<<"WARNING: Client: Ignoring unknown command "
1199                                 <<command<<std::endl;
1200         }
1201
1202         return true;
1203
1204         } //try
1205         catch(con::PeerNotFoundException &e)
1206         {
1207                 dout_client<<DTIME<<"Client::AsyncProcessData(): Cancelling: The server"
1208                                 " connection doesn't exist (a timeout or not yet connected?)"<<std::endl;
1209                 return false;
1210         }
1211 }
1212
1213 bool Client::AsyncProcessData()
1214 {
1215         for(;;)
1216         {
1217                 bool r = AsyncProcessPacket();
1218                 if(r == false)
1219                         break;
1220         }
1221         return false;
1222 }
1223
1224 void Client::Send(u16 channelnum, SharedBuffer<u8> data, bool reliable)
1225 {
1226         JMutexAutoLock lock(m_con_mutex);
1227         m_con.Send(PEER_ID_SERVER, channelnum, data, reliable);
1228 }
1229
1230 bool Client::isFetchingBlocks()
1231 {
1232         JMutexAutoLock conlock(m_con_mutex);
1233         con::Peer *peer = m_con.GetPeerNoEx(PEER_ID_SERVER);
1234         // Not really fetching but can't fetch more.
1235         if(peer == NULL) return true;
1236
1237         con::Channel *channel = &(peer->channels[1]);
1238         /*
1239                 NOTE: Channel 0 should always be used for fetching blocks,
1240                       and for nothing else.
1241         */
1242         if(channel->incoming_reliables.size() > 0)
1243                 return true;
1244         if(channel->outgoing_reliables.size() > 0)
1245                 return true;
1246         return false;
1247 }
1248
1249 IncomingPacket Client::getPacket()
1250 {
1251         JMutexAutoLock lock(m_incoming_queue_mutex);
1252
1253         core::list<IncomingPacket>::Iterator i;
1254         // Refer to first one
1255         i = m_incoming_queue.begin();
1256
1257         // If queue is empty, return empty packet
1258         if(i == m_incoming_queue.end()){
1259                 IncomingPacket packet;
1260                 return packet;
1261         }
1262
1263         // Pop out first packet and return it
1264         IncomingPacket packet = *i;
1265         m_incoming_queue.erase(i);
1266         return packet;
1267 }
1268
1269 void Client::groundAction(u8 action, v3s16 nodepos_undersurface,
1270                 v3s16 nodepos_oversurface, u16 item)
1271 {
1272         if(connectedAndInitialized() == false){
1273                 dout_client<<DTIME<<"Client::groundAction() "
1274                                 "cancelled (not connected)"
1275                                 <<std::endl;
1276                 return;
1277         }
1278
1279         /*
1280                 length: 17
1281                 [0] u16 command
1282                 [2] u8 action
1283                 [3] v3s16 nodepos_undersurface
1284                 [9] v3s16 nodepos_abovesurface
1285                 [15] u16 item
1286                 actions:
1287                 0: start digging
1288                 1: place block
1289                 2: stop digging (all parameters ignored)
1290         */
1291         u8 datasize = 2 + 1 + 6 + 6 + 2;
1292         SharedBuffer<u8> data(datasize);
1293         writeU16(&data[0], TOSERVER_GROUND_ACTION);
1294         writeU8(&data[2], action);
1295         writeV3S16(&data[3], nodepos_undersurface);
1296         writeV3S16(&data[9], nodepos_oversurface);
1297         writeU16(&data[15], item);
1298         Send(0, data, true);
1299 }
1300
1301 void Client::clickObject(u8 button, v3s16 blockpos, s16 id, u16 item)
1302 {
1303         if(connectedAndInitialized() == false){
1304                 dout_client<<DTIME<<"Client::clickObject() "
1305                                 "cancelled (not connected)"
1306                                 <<std::endl;
1307                 return;
1308         }
1309
1310         /*
1311                 [0] u16 command=TOSERVER_CLICK_OBJECT
1312                 [2] u8 button (0=left, 1=right)
1313                 [3] v3s16 block
1314                 [9] s16 id
1315                 [11] u16 item
1316         */
1317         u8 datasize = 2 + 1 + 6 + 2 + 2;
1318         SharedBuffer<u8> data(datasize);
1319         writeU16(&data[0], TOSERVER_CLICK_OBJECT);
1320         writeU8(&data[2], button);
1321         writeV3S16(&data[3], blockpos);
1322         writeS16(&data[9], id);
1323         writeU16(&data[11], item);
1324         Send(0, data, true);
1325 }
1326
1327 void Client::sendSignText(v3s16 blockpos, s16 id, std::string text)
1328 {
1329         /*
1330                 u16 command
1331                 v3s16 blockpos
1332                 s16 id
1333                 u16 textlen
1334                 textdata
1335         */
1336         std::ostringstream os(std::ios_base::binary);
1337         u8 buf[12];
1338
1339         // Write command
1340         writeU16(buf, TOSERVER_SIGNTEXT);
1341         os.write((char*)buf, 2);
1342
1343         // Write blockpos
1344         writeV3S16(buf, blockpos);
1345         os.write((char*)buf, 6);
1346
1347         // Write id
1348         writeS16(buf, id);
1349         os.write((char*)buf, 2);
1350
1351         u16 textlen = text.size();
1352         // Write text length
1353         writeS16(buf, textlen);
1354         os.write((char*)buf, 2);
1355
1356         // Write text
1357         os.write((char*)text.c_str(), textlen);
1358
1359         // Make data buffer
1360         std::string s = os.str();
1361         SharedBuffer<u8> data((u8*)s.c_str(), s.size());
1362         // Send as reliable
1363         Send(0, data, true);
1364 }
1365
1366 void Client::sendInventoryAction(InventoryAction *a)
1367 {
1368         std::ostringstream os(std::ios_base::binary);
1369         u8 buf[12];
1370
1371         // Write command
1372         writeU16(buf, TOSERVER_INVENTORY_ACTION);
1373         os.write((char*)buf, 2);
1374
1375         a->serialize(os);
1376
1377         // Make data buffer
1378         std::string s = os.str();
1379         SharedBuffer<u8> data((u8*)s.c_str(), s.size());
1380         // Send as reliable
1381         Send(0, data, true);
1382 }
1383
1384 void Client::sendChatMessage(const std::wstring &message)
1385 {
1386         std::ostringstream os(std::ios_base::binary);
1387         u8 buf[12];
1388
1389         // Write command
1390         writeU16(buf, TOSERVER_CHAT_MESSAGE);
1391         os.write((char*)buf, 2);
1392
1393         // Write length
1394         writeU16(buf, message.size());
1395         os.write((char*)buf, 2);
1396
1397         // Write string
1398         for(u32 i=0; i<message.size(); i++)
1399         {
1400                 u16 w = message[i];
1401                 writeU16(buf, w);
1402                 os.write((char*)buf, 2);
1403         }
1404
1405         // Make data buffer
1406         std::string s = os.str();
1407         SharedBuffer<u8> data((u8*)s.c_str(), s.size());
1408         // Send as reliable
1409         Send(0, data, true);
1410 }
1411
1412 void Client::sendPlayerPos()
1413 {
1414         JMutexAutoLock envlock(m_env_mutex);
1415
1416         Player *myplayer = m_env.getLocalPlayer();
1417         if(myplayer == NULL)
1418                 return;
1419
1420         u16 our_peer_id;
1421         {
1422                 JMutexAutoLock lock(m_con_mutex);
1423                 our_peer_id = m_con.GetPeerID();
1424         }
1425
1426         // Set peer id if not set already
1427         if(myplayer->peer_id == PEER_ID_NEW)
1428                 myplayer->peer_id = our_peer_id;
1429         // Check that an existing peer_id is the same as the connection's
1430         assert(myplayer->peer_id == our_peer_id);
1431
1432         v3f pf = myplayer->getPosition();
1433         v3s32 position(pf.X*100, pf.Y*100, pf.Z*100);
1434         v3f sf = myplayer->getSpeed();
1435         v3s32 speed(sf.X*100, sf.Y*100, sf.Z*100);
1436         s32 pitch = myplayer->getPitch() * 100;
1437         s32 yaw = myplayer->getYaw() * 100;
1438
1439         /*
1440                 Format:
1441                 [0] u16 command
1442                 [2] v3s32 position*100
1443                 [2+12] v3s32 speed*100
1444                 [2+12+12] s32 pitch*100
1445                 [2+12+12+4] s32 yaw*100
1446         */
1447
1448         SharedBuffer<u8> data(2+12+12+4+4);
1449         writeU16(&data[0], TOSERVER_PLAYERPOS);
1450         writeV3S32(&data[2], position);
1451         writeV3S32(&data[2+12], speed);
1452         writeS32(&data[2+12+12], pitch);
1453         writeS32(&data[2+12+12+4], yaw);
1454
1455         // Send as unreliable
1456         Send(0, data, false);
1457 }
1458
1459 void Client::removeNode(v3s16 p)
1460 {
1461         JMutexAutoLock envlock(m_env_mutex);
1462
1463         core::map<v3s16, MapBlock*> modified_blocks;
1464
1465         try
1466         {
1467                 //TimeTaker t("removeNodeAndUpdate", m_device);
1468                 m_env.getMap().removeNodeAndUpdate(p, modified_blocks);
1469         }
1470         catch(InvalidPositionException &e)
1471         {
1472         }
1473
1474         for(core::map<v3s16, MapBlock * >::Iterator
1475                         i = modified_blocks.getIterator();
1476                         i.atEnd() == false; i++)
1477         {
1478                 v3s16 p = i.getNode()->getKey();
1479                 m_env.getMap().updateMeshes(p, m_env.getDayNightRatio());
1480         }
1481 }
1482
1483 void Client::addNode(v3s16 p, MapNode n)
1484 {
1485         JMutexAutoLock envlock(m_env_mutex);
1486
1487         core::map<v3s16, MapBlock*> modified_blocks;
1488
1489         try
1490         {
1491                 m_env.getMap().addNodeAndUpdate(p, n, modified_blocks);
1492         }
1493         catch(InvalidPositionException &e)
1494         {}
1495
1496         for(core::map<v3s16, MapBlock * >::Iterator
1497                         i = modified_blocks.getIterator();
1498                         i.atEnd() == false; i++)
1499         {
1500                 v3s16 p = i.getNode()->getKey();
1501                 m_env.getMap().updateMeshes(p, m_env.getDayNightRatio());
1502         }
1503 }
1504
1505 void Client::updateCamera(v3f pos, v3f dir)
1506 {
1507         m_env.getMap().updateCamera(pos, dir);
1508         camera_position = pos;
1509         camera_direction = dir;
1510 }
1511
1512 MapNode Client::getNode(v3s16 p)
1513 {
1514         JMutexAutoLock envlock(m_env_mutex);
1515         return m_env.getMap().getNode(p);
1516 }
1517
1518 /*void Client::getNode(v3s16 p, MapNode n)
1519 {
1520         JMutexAutoLock envlock(m_env_mutex);
1521         m_env.getMap().setNode(p, n);
1522 }*/
1523
1524 /*f32 Client::getGroundHeight(v2s16 p)
1525 {
1526         JMutexAutoLock envlock(m_env_mutex);
1527         return m_env.getMap().getGroundHeight(p);
1528 }*/
1529
1530 /*bool Client::isNodeUnderground(v3s16 p)
1531 {
1532         JMutexAutoLock envlock(m_env_mutex);
1533         return m_env.getMap().isNodeUnderground(p);
1534 }*/
1535
1536 /*Player * Client::getLocalPlayer()
1537 {
1538         JMutexAutoLock envlock(m_env_mutex);
1539         return m_env.getLocalPlayer();
1540 }*/
1541
1542 /*core::list<Player*> Client::getPlayers()
1543 {
1544         JMutexAutoLock envlock(m_env_mutex);
1545         return m_env.getPlayers();
1546 }*/
1547
1548 v3f Client::getPlayerPosition()
1549 {
1550         JMutexAutoLock envlock(m_env_mutex);
1551         LocalPlayer *player = m_env.getLocalPlayer();
1552         assert(player != NULL);
1553         return player->getPosition();
1554 }
1555
1556 void Client::setPlayerControl(PlayerControl &control)
1557 {
1558         JMutexAutoLock envlock(m_env_mutex);
1559         LocalPlayer *player = m_env.getLocalPlayer();
1560         assert(player != NULL);
1561         player->control = control;
1562 }
1563
1564 // Returns true if the inventory of the local player has been
1565 // updated from the server. If it is true, it is set to false.
1566 bool Client::getLocalInventoryUpdated()
1567 {
1568         // m_inventory_updated is behind envlock
1569         JMutexAutoLock envlock(m_env_mutex);
1570         bool updated = m_inventory_updated;
1571         m_inventory_updated = false;
1572         return updated;
1573 }
1574
1575 // Copies the inventory of the local player to parameter
1576 void Client::getLocalInventory(Inventory &dst)
1577 {
1578         JMutexAutoLock envlock(m_env_mutex);
1579         Player *player = m_env.getLocalPlayer();
1580         assert(player != NULL);
1581         dst = player->inventory;
1582 }
1583
1584 MapBlockObject * Client::getSelectedObject(
1585                 f32 max_d,
1586                 v3f from_pos_f_on_map,
1587                 core::line3d<f32> shootline_on_map
1588         )
1589 {
1590         JMutexAutoLock envlock(m_env_mutex);
1591
1592         core::array<DistanceSortedObject> objects;
1593
1594         for(core::map<v3s16, bool>::Iterator
1595                         i = m_active_blocks.getIterator();
1596                         i.atEnd() == false; i++)
1597         {
1598                 v3s16 p = i.getNode()->getKey();
1599
1600                 MapBlock *block = NULL;
1601                 try
1602                 {
1603                         block = m_env.getMap().getBlockNoCreate(p);
1604                 }
1605                 catch(InvalidPositionException &e)
1606                 {
1607                         continue;
1608                 }
1609
1610                 // Calculate from_pos relative to block
1611                 v3s16 block_pos_i_on_map = block->getPosRelative();
1612                 v3f block_pos_f_on_map = intToFloat(block_pos_i_on_map);
1613                 v3f from_pos_f_on_block = from_pos_f_on_map - block_pos_f_on_map;
1614
1615                 block->getObjects(from_pos_f_on_block, max_d, objects);
1616                 //block->getPseudoObjects(from_pos_f_on_block, max_d, objects);
1617         }
1618
1619         //dstream<<"Collected "<<objects.size()<<" nearby objects"<<std::endl;
1620
1621         // Sort them.
1622         // After this, the closest object is the first in the array.
1623         objects.sort();
1624
1625         for(u32 i=0; i<objects.size(); i++)
1626         {
1627                 MapBlockObject *obj = objects[i].obj;
1628                 MapBlock *block = obj->getBlock();
1629
1630                 // Calculate shootline relative to block
1631                 v3s16 block_pos_i_on_map = block->getPosRelative();
1632                 v3f block_pos_f_on_map = intToFloat(block_pos_i_on_map);
1633                 core::line3d<f32> shootline_on_block(
1634                                 shootline_on_map.start - block_pos_f_on_map,
1635                                 shootline_on_map.end - block_pos_f_on_map
1636                 );
1637
1638                 if(obj->isSelected(shootline_on_block))
1639                 {
1640                         //dstream<<"Returning selected object"<<std::endl;
1641                         return obj;
1642                 }
1643         }
1644
1645         //dstream<<"No object selected; returning NULL."<<std::endl;
1646         return NULL;
1647 }
1648
1649 void Client::printDebugInfo(std::ostream &os)
1650 {
1651         //JMutexAutoLock lock1(m_fetchblock_mutex);
1652         JMutexAutoLock lock2(m_incoming_queue_mutex);
1653
1654         os<<"m_incoming_queue.getSize()="<<m_incoming_queue.getSize()
1655                 //<<", m_fetchblock_history.size()="<<m_fetchblock_history.size()
1656                 //<<", m_opt_not_found_history.size()="<<m_opt_not_found_history.size()
1657                 <<std::endl;
1658 }
1659
1660 /*s32 Client::getDayNightIndex()
1661 {
1662         assert(m_daynight_i >= 0 && m_daynight_i < DAYNIGHT_CACHE_COUNT);
1663         return m_daynight_i;
1664 }*/
1665
1666 u32 Client::getDayNightRatio()
1667 {
1668         JMutexAutoLock envlock(m_env_mutex);
1669         return m_env.getDayNightRatio();
1670 }
1671
1672 /*void Client::updateSomeExpiredMeshes()
1673 {
1674         TimeTaker timer("updateSomeExpiredMeshes()", g_device);
1675
1676         Player *player;
1677         {
1678                 JMutexAutoLock envlock(m_env_mutex);
1679                 player = m_env.getLocalPlayer();
1680         }
1681
1682         u32 daynight_ratio = getDayNightRatio();
1683
1684         v3f playerpos = player->getPosition();
1685         v3f playerspeed = player->getSpeed();
1686
1687         v3s16 center_nodepos = floatToInt(playerpos);
1688         v3s16 center = getNodeBlockPos(center_nodepos);
1689
1690         u32 counter = 0;
1691
1692         s16 d_max = 5;
1693
1694         for(s16 d = 0; d <= d_max; d++)
1695         {
1696                 core::list<v3s16> list;
1697                 getFacePositions(list, d);
1698
1699                 core::list<v3s16>::Iterator li;
1700                 for(li=list.begin(); li!=list.end(); li++)
1701                 {
1702                         v3s16 p = *li + center;
1703                         MapBlock *block = NULL;
1704                         try
1705                         {
1706                                 //JMutexAutoLock envlock(m_env_mutex);
1707                                 block = m_env.getMap().getBlockNoCreate(p);
1708                         }
1709                         catch(InvalidPositionException &e)
1710                         {
1711                         }
1712
1713                         if(block == NULL)
1714                                 continue;
1715
1716                         if(block->getMeshExpired() == false)
1717                                 continue;
1718
1719                         block->updateMesh(daynight_ratio);
1720
1721                         counter++;
1722                         if(counter >= 5)
1723                                 return;
1724                 }
1725         }
1726 }*/
1727