src/game/MovementHandler.cpp

   1 /*
   2  * Copyright (C) 2005-2010 MaNGOS <http://getmangos.com/>
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  17  */
  18
  19 #include "Common.h"
  20 #include "WorldPacket.h"
  21 #include "WorldSession.h"
  22 #include "Opcodes.h"
  23 #include "Log.h"
  24 #include "Corpse.h"
  25 #include "Player.h"
  26 #include "Vehicle.h"
  27 #include "SpellAuras.h"
  28 #include "MapManager.h"
  29 #include "Transports.h"
  30 #include "BattleGround.h"
  31 #include "WaypointMovementGenerator.h"
  32 #include "InstanceSaveMgr.h"
  33 #include "ObjectMgr.h"
  34
  35 void WorldSession::HandleMoveWorldportAckOpcode( WorldPacket & /*recv_data*/ )
  36 {
  37     sLog.outDebug( "WORLD: got MSG_MOVE_WORLDPORT_ACK." );
  38     HandleMoveWorldportAckOpcode();
  39 }
  40
  41 void WorldSession::HandleMoveWorldportAckOpcode()
  42 {
  43     // ignore unexpected far teleports
  44     if(!GetPlayer()->IsBeingTeleportedFar())
  45         return;
  46
  47     // get the teleport destination
  48     WorldLocation &loc = GetPlayer()->GetTeleportDest();
  49
  50     // possible errors in the coordinate validity check
  51     if(!MapManager::IsValidMapCoord(loc.mapid, loc.coord_x, loc.coord_y, loc.coord_z, loc.orientation))
  52     {
  53         sLog.outError("WorldSession::HandleMoveWorldportAckOpcode: player %s (%d) was teleported far to a not valid location. (map:%u, x:%f, y:%f, "
  54             "z:%f) We port him to his homebind instead..", GetPlayer()->GetName(), GetPlayer()->GetGUIDLow(), loc.mapid, loc.coord_x, loc.coord_y, loc.coord_z);
  55         // stop teleportation else we would try this again and again in LogoutPlayer...
  56         GetPlayer()->SetSemaphoreTeleportFar(false);
  57         // and teleport the player to a valid place
  58         GetPlayer()->TeleportToHomebind();
  59         return;
  60     }
  61
  62     // get the destination map entry, not the current one, this will fix homebind and reset greeting
  63     MapEntry const* mEntry = sMapStore.LookupEntry(loc.mapid);
  64     InstanceTemplate const* mInstance = ObjectMgr::GetInstanceTemplate(loc.mapid);
  65
  66     // reset instance validity, except if going to an instance inside an instance
  67     if(GetPlayer()->m_InstanceValid == false && !mInstance)
  68         GetPlayer()->m_InstanceValid = true;
  69
  70     GetPlayer()->SetSemaphoreTeleportFar(false);
  71
  72     // relocate the player to the teleport destination
  73     GetPlayer()->SetMap(sMapMgr.CreateMap(loc.mapid, GetPlayer()));
  74     GetPlayer()->Relocate(loc.coord_x, loc.coord_y, loc.coord_z, loc.orientation);
  75
  76     GetPlayer()->SendInitialPacketsBeforeAddToMap();
  77     // the CanEnter checks are done in TeleporTo but conditions may change
  78     // while the player is in transit, for example the map may get full
  79     if(!GetPlayer()->GetMap()->Add(GetPlayer()))
  80     {
  81         //if player wasn't added to map, reset his map pointer!
  82         GetPlayer()->ResetMap();
  83
  84         sLog.outError("WorldSession::HandleMoveWorldportAckOpcode: player %s (%d) was teleported far but couldn't be added to map. (map:%u, x:%f, y:%f, "
  85             "z:%f) We port him to his homebind instead..", GetPlayer()->GetName(), GetPlayer()->GetGUIDLow(), loc.mapid, loc.coord_x, loc.coord_y, loc.coord_z);
  86         // teleport the player home
  87         GetPlayer()->TeleportToHomebind();
  88         return;
  89     }
  90
  91     // battleground state prepare (in case join to BG), at relogin/tele player not invited
  92     // only add to bg group and object, if the player was invited (else he entered through command)
  93     if(_player->InBattleGround())
  94     {
  95         // cleanup setting if outdated
  96         if(!mEntry->IsBattleGroundOrArena())
  97         {
  98             // We're not in BG
  99             _player->SetBattleGroundId(0, BATTLEGROUND_TYPE_NONE);
 100             // reset destination bg team
 101             _player->SetBGTeam(0);
 102         }
 103         // join to bg case
 104         else if(BattleGround *bg = _player->GetBattleGround())
 105         {
 106             if(_player->IsInvitedForBattleGroundInstance(_player->GetBattleGroundId()))
 107                 bg->AddPlayer(_player);
 108         }
 109     }
 110
 111     GetPlayer()->SendInitialPacketsAfterAddToMap();
 112
 113     // flight fast teleport case
 114     if(GetPlayer()->GetMotionMaster()->GetCurrentMovementGeneratorType() == FLIGHT_MOTION_TYPE)
 115     {
 116         if(!_player->InBattleGround())
 117         {
 118             // short preparations to continue flight
 119             FlightPathMovementGenerator* flight = (FlightPathMovementGenerator*)(GetPlayer()->GetMotionMaster()->top());
 120             flight->Reset(*GetPlayer());
 121             return;
 122         }
 123
 124         // battleground state prepare, stop flight
 125         GetPlayer()->GetMotionMaster()->MovementExpired();
 126         GetPlayer()->m_taxi.ClearTaxiDestinations();
 127     }
 128
 129     // resurrect character at enter into instance where his corpse exist after add to map
 130     Corpse *corpse = GetPlayer()->GetCorpse();
 131     if (corpse && corpse->GetType() != CORPSE_BONES && corpse->GetMapId() == GetPlayer()->GetMapId())
 132     {
 133         if( mEntry->IsDungeon() )
 134         {
 135             GetPlayer()->ResurrectPlayer(0.5f);
 136             GetPlayer()->SpawnCorpseBones();
 137         }
 138     }
 139
 140     if (mInstance)
 141     {
 142         Difficulty diff = GetPlayer()->GetDifficulty(mEntry->IsRaid());
 143         if(MapDifficulty const* mapDiff = GetMapDifficultyData(mEntry->MapID,diff))
 144         {
 145             if (mapDiff->resetTime)
 146             {
 147                 if (time_t timeReset = sInstanceSaveMgr.GetResetTimeFor(mEntry->MapID,diff))
 148                 {
 149                     uint32 timeleft = uint32(timeReset - time(NULL));
 150                     GetPlayer()->SendInstanceResetWarning(mEntry->MapID, diff, timeleft);
 151                 }
 152             }
 153         }
 154     }
 155
 156     // mount allow check
 157     if(!mEntry->IsMountAllowed())
 158         _player->RemoveSpellsCausingAura(SPELL_AURA_MOUNTED);
 159
 160     // honorless target
 161     if(GetPlayer()->pvpInfo.inHostileArea)
 162         GetPlayer()->CastSpell(GetPlayer(), 2479, true);
 163
 164     // resummon pet
 165     GetPlayer()->ResummonPetTemporaryUnSummonedIfAny();
 166
 167     //lets process all delayed operations on successful teleport
 168     GetPlayer()->ProcessDelayedOperations();
 169 }
 170
 171 void WorldSession::HandleMoveTeleportAck(WorldPacket& recv_data)
 172 {
 173     sLog.outDebug("MSG_MOVE_TELEPORT_ACK");
 174
 175     ObjectGuid guid;
 176
 177     recv_data >> guid.ReadAsPacked();
 178
 179     uint32 flags, time;
 180     recv_data >> flags >> time;
 181     DEBUG_LOG("Guid: %s", guid.GetString().c_str());
 182     DEBUG_LOG("Flags %u, time %u", flags, time/IN_MILISECONDS);
 183
 184     Unit *mover = _player->m_mover;
 185     Player *plMover = mover->GetTypeId() == TYPEID_PLAYER ? (Player*)mover : NULL;
 186
 187     if(!plMover || !plMover->IsBeingTeleportedNear())
 188         return;
 189
 190     if(guid != plMover->GetObjectGuid())
 191         return;
 192
 193     plMover->SetSemaphoreTeleportNear(false);
 194
 195     uint32 old_zone = plMover->GetZoneId();
 196
 197     WorldLocation const& dest = plMover->GetTeleportDest();
 198
 199     plMover->SetPosition(dest.coord_x, dest.coord_y, dest.coord_z, dest.orientation, true);
 200
 201     uint32 newzone, newarea;
 202     plMover->GetZoneAndAreaId(newzone, newarea);
 203     plMover->UpdateZone(newzone, newarea);
 204
 205     // new zone
 206     if(old_zone != newzone)
 207     {
 208         // honorless target
 209         if(plMover->pvpInfo.inHostileArea)
 210             plMover->CastSpell(plMover, 2479, true);
 211     }
 212
 213     // resummon pet
 214     GetPlayer()->ResummonPetTemporaryUnSummonedIfAny();
 215
 216     //lets process all delayed operations on successful teleport
 217     GetPlayer()->ProcessDelayedOperations();
 218 }
 219
 220 void WorldSession::HandleMovementOpcodes( WorldPacket & recv_data )
 221 {
 222     uint32 opcode = recv_data.GetOpcode();
 223     sLog.outDebug("WORLD: Recvd %s (%u, 0x%X) opcode", LookupOpcodeName(opcode), opcode, opcode);
 224     recv_data.hexlike();
 225
 226     Unit *mover = _player->m_mover;
 227     Player *plMover = mover->GetTypeId() == TYPEID_PLAYER ? (Player*)mover : NULL;
 228
 229     // ignore, waiting processing in WorldSession::HandleMoveWorldportAckOpcode and WorldSession::HandleMoveTeleportAck
 230     if(plMover && plMover->IsBeingTeleported())
 231     {
 232         recv_data.rpos(recv_data.wpos());                   // prevent warnings spam
 233         return;
 234     }
 235
 236     /* extract packet */
 237     ObjectGuid guid;
 238     MovementInfo movementInfo;
 239
 240     recv_data >> guid.ReadAsPacked();
 241     recv_data >> movementInfo;
 242     /*----------------*/
 243
 244     if (!MaNGOS::IsValidMapCoord(movementInfo.GetPos()->x, movementInfo.GetPos()->y, movementInfo.GetPos()->z, movementInfo.GetPos()->o))
 245     {
 246         recv_data.rpos(recv_data.wpos());                   // prevent warnings spam
 247         return;
 248     }
 249
 250     /* handle special cases */
 251     if (movementInfo.HasMovementFlag(MOVEFLAG_ONTRANSPORT))
 252     {
 253         // transports size limited
 254         // (also received at zeppelin/lift leave by some reason with t_* as absolute in continent coordinates, can be safely skipped)
 255         if( movementInfo.GetTransportPos()->x > 50 || movementInfo.GetTransportPos()->y > 50 || movementInfo.GetTransportPos()->z > 100 )
 256         {
 257             recv_data.rpos(recv_data.wpos());                   // prevent warnings spam
 258             return;
 259         }
 260
 261         if( !MaNGOS::IsValidMapCoord(movementInfo.GetPos()->x + movementInfo.GetTransportPos()->x, movementInfo.GetPos()->y + movementInfo.GetTransportPos()->y,
 262             movementInfo.GetPos()->z + movementInfo.GetTransportPos()->z, movementInfo.GetPos()->o + movementInfo.GetTransportPos()->o) )
 263         {
 264             recv_data.rpos(recv_data.wpos());                   // prevent warnings spam
 265             return;
 266         }
 267
 268         // if we boarded a transport, add us to it
 269         if (plMover && !plMover->m_transport)
 270         {
 271             // elevators also cause the client to send MOVEFLAG_ONTRANSPORT - just unmount if the guid can be found in the transport list
 272             for (MapManager::TransportSet::const_iterator iter = sMapMgr.m_Transports.begin(); iter != sMapMgr.m_Transports.end(); ++iter)
 273             {
 274                 if ((*iter)->GetObjectGuid() == movementInfo.GetTransportGuid())
 275                 {
 276                     plMover->m_transport = (*iter);
 277                     (*iter)->AddPassenger(plMover);
 278                     break;
 279                 }
 280             }
 281         }
 282     }
 283     else if (plMover && plMover->m_transport)               // if we were on a transport, leave
 284     {
 285         plMover->m_transport->RemovePassenger(plMover);
 286         plMover->m_transport = NULL;
 287         movementInfo.SetTransportData(0, 0.0f, 0.0f, 0.0f, 0.0f, 0, -1);
 288     }
 289
 290     // fall damage generation (ignore in flight case that can be triggered also at lags in moment teleportation to another map).
 291     if (opcode == MSG_MOVE_FALL_LAND && plMover && !plMover->isInFlight())
 292         plMover->HandleFall(movementInfo);
 293
 294     if (plMover && (movementInfo.HasMovementFlag(MOVEFLAG_SWIMMING) != plMover->IsInWater()))
 295     {
 296         // now client not include swimming flag in case jumping under water
 297         plMover->SetInWater( !plMover->IsInWater() || plMover->GetBaseMap()->IsUnderWater(movementInfo.GetPos()->x, movementInfo.GetPos()->y, movementInfo.GetPos()->z) );
 298     }
 299
 300     /*----------------------*/
 301
 302     /* process position-change */
 303     movementInfo.UpdateTime(getMSTime());
 304
 305     WorldPacket data(opcode, recv_data.size());
 306     data.appendPackGUID(mover->GetGUID());                  // write guid
 307     movementInfo.Write(data);                               // write data
 308     GetPlayer()->SendMessageToSet(&data, false);
 309
 310     if(plMover)                                             // nothing is charmed, or player charmed
 311     {
 312         plMover->SetPosition(movementInfo.GetPos()->x, movementInfo.GetPos()->y, movementInfo.GetPos()->z, movementInfo.GetPos()->o);
 313         plMover->m_movementInfo = movementInfo;
 314         plMover->UpdateFallInformationIfNeed(movementInfo, opcode);
 315
 316         // after move info set
 317         if ((opcode == MSG_MOVE_SET_WALK_MODE || opcode == MSG_MOVE_SET_RUN_MODE))
 318             plMover->UpdateWalkMode(plMover, false);
 319
 320         if(plMover->isMovingOrTurning())
 321             plMover->RemoveSpellsCausingAura(SPELL_AURA_FEIGN_DEATH);
 322
 323         if(movementInfo.GetPos()->z < -500.0f)
 324         {
 325             if(plMover->InBattleGround()
 326                 && plMover->GetBattleGround()
 327                 && plMover->GetBattleGround()->HandlePlayerUnderMap(_player))
 328             {
 329                 // do nothing, the handle already did if returned true
 330             }
 331             else
 332             {
 333                 // NOTE: this is actually called many times while falling
 334                 // even after the player has been teleported away
 335                 // TODO: discard movement packets after the player is rooted
 336                 if(plMover->isAlive())
 337                 {
 338                     plMover->EnvironmentalDamage(DAMAGE_FALL_TO_VOID, GetPlayer()->GetMaxHealth());
 339                     // pl can be alive if GM/etc
 340                     if(!plMover->isAlive())
 341                     {
 342                         // change the death state to CORPSE to prevent the death timer from
 343                         // starting in the next player update
 344                         plMover->KillPlayer();
 345                         plMover->BuildPlayerRepop();
 346                     }
 347                 }
 348
 349                 // cancel the death timer here if started
 350                 plMover->RepopAtGraveyard();
 351             }
 352         }
 353     }
 354     else                                                    // creature charmed
 355     {
 356         if(mover->IsInWorld())
 357             mover->GetMap()->CreatureRelocation((Creature*)mover, movementInfo.GetPos()->x, movementInfo.GetPos()->y, movementInfo.GetPos()->z, movementInfo.GetPos()->o);
 358     }
 359 }
 360
 361 void WorldSession::HandleForceSpeedChangeAck(WorldPacket &recv_data)
 362 {
 363     uint32 opcode = recv_data.GetOpcode();
 364     sLog.outDebug("WORLD: Recvd %s (%u, 0x%X) opcode", LookupOpcodeName(opcode), opcode, opcode);
 365     /* extract packet */
 366     ObjectGuid guid;
 367     MovementInfo movementInfo;
 368     float  newspeed;
 369
 370     recv_data >> guid.ReadAsPacked();
 371     recv_data >> Unused<uint32>();                          // counter or moveEvent
 372     recv_data >> movementInfo;
 373     recv_data >> newspeed;
 374
 375     // now can skip not our packet
 376     if(_player->GetObjectGuid() != guid)
 377     {
 378         recv_data.rpos(recv_data.wpos());                   // prevent warnings spam
 379         return;
 380     }
 381     /*----------------*/
 382
 383     // client ACK send one packet for mounted/run case and need skip all except last from its
 384     // in other cases anti-cheat check can be fail in false case
 385     UnitMoveType move_type;
 386     UnitMoveType force_move_type;
 387
 388     static char const* move_type_name[MAX_MOVE_TYPE] = {  "Walk", "Run", "RunBack", "Swim", "SwimBack", "TurnRate", "Flight", "FlightBack", "PitchRate" };
 389
 390     switch(opcode)
 391     {
 392         case CMSG_FORCE_WALK_SPEED_CHANGE_ACK:          move_type = MOVE_WALK;          force_move_type = MOVE_WALK;        break;
 393         case CMSG_FORCE_RUN_SPEED_CHANGE_ACK:           move_type = MOVE_RUN;           force_move_type = MOVE_RUN;         break;
 394         case CMSG_FORCE_RUN_BACK_SPEED_CHANGE_ACK:      move_type = MOVE_RUN_BACK;      force_move_type = MOVE_RUN_BACK;    break;
 395         case CMSG_FORCE_SWIM_SPEED_CHANGE_ACK:          move_type = MOVE_SWIM;          force_move_type = MOVE_SWIM;        break;
 396         case CMSG_FORCE_SWIM_BACK_SPEED_CHANGE_ACK:     move_type = MOVE_SWIM_BACK;     force_move_type = MOVE_SWIM_BACK;   break;
 397         case CMSG_FORCE_TURN_RATE_CHANGE_ACK:           move_type = MOVE_TURN_RATE;     force_move_type = MOVE_TURN_RATE;   break;
 398         case CMSG_FORCE_FLIGHT_SPEED_CHANGE_ACK:        move_type = MOVE_FLIGHT;        force_move_type = MOVE_FLIGHT;      break;
 399         case CMSG_FORCE_FLIGHT_BACK_SPEED_CHANGE_ACK:   move_type = MOVE_FLIGHT_BACK;   force_move_type = MOVE_FLIGHT_BACK; break;
 400         case CMSG_FORCE_PITCH_RATE_CHANGE_ACK:          move_type = MOVE_PITCH_RATE;    force_move_type = MOVE_PITCH_RATE;  break;
 401         default:
 402             sLog.outError("WorldSession::HandleForceSpeedChangeAck: Unknown move type opcode: %u", opcode);
 403             return;
 404     }
 405
 406     // skip all forced speed changes except last and unexpected
 407     // in run/mounted case used one ACK and it must be skipped.m_forced_speed_changes[MOVE_RUN} store both.
 408     if(_player->m_forced_speed_changes[force_move_type] > 0)
 409     {
 410         --_player->m_forced_speed_changes[force_move_type];
 411         if(_player->m_forced_speed_changes[force_move_type] > 0)
 412             return;
 413     }
 414
 415     if (!_player->GetTransport() && fabs(_player->GetSpeed(move_type) - newspeed) > 0.01f)
 416     {
 417         if(_player->GetSpeed(move_type) > newspeed)         // must be greater - just correct
 418         {
 419             sLog.outError("%sSpeedChange player %s is NOT correct (must be %f instead %f), force set to correct value",
 420                 move_type_name[move_type], _player->GetName(), _player->GetSpeed(move_type), newspeed);
 421             _player->SetSpeedRate(move_type,_player->GetSpeedRate(move_type),true);
 422         }
 423         else                                                // must be lesser - cheating
 424         {
 425             sLog.outBasic("Player %s from account id %u kicked for incorrect speed (must be %f instead %f)",
 426                 _player->GetName(),_player->GetSession()->GetAccountId(),_player->GetSpeed(move_type), newspeed);
 427             _player->GetSession()->KickPlayer();
 428         }
 429     }
 430 }
 431
 432 void WorldSession::HandleSetActiveMoverOpcode(WorldPacket &recv_data)
 433 {
 434     sLog.outDebug("WORLD: Recvd CMSG_SET_ACTIVE_MOVER");
 435     recv_data.hexlike();
 436
 437     uint64 guid;
 438     recv_data >> guid;
 439
 440     if(_player->m_mover->GetGUID() != guid)
 441     {
 442         sLog.outError("HandleSetActiveMoverOpcode: incorrect mover guid: mover is " I64FMT " and should be " I64FMT, _player->m_mover->GetGUID(), guid);
 443         return;
 444     }
 445 }
 446
 447 void WorldSession::HandleMoveNotActiveMover(WorldPacket &recv_data)
 448 {
 449     sLog.outDebug("WORLD: Recvd CMSG_MOVE_NOT_ACTIVE_MOVER");
 450     recv_data.hexlike();
 451
 452     ObjectGuid old_mover_guid;
 453     MovementInfo mi;
 454
 455     recv_data >> old_mover_guid.ReadAsPacked();
 456     recv_data >> mi;
 457
 458     if(_player->m_mover->GetObjectGuid() == old_mover_guid)
 459     {
 460         sLog.outError("HandleMoveNotActiveMover: incorrect mover guid: mover is " I64FMT " and should be " I64FMT " instead of " UI64FMTD, _player->m_mover->GetGUID(), _player->GetGUID(), old_mover_guid.GetRawValue());
 461         recv_data.rpos(recv_data.wpos());                   // prevent warnings spam
 462         return;
 463     }
 464
 465     _player->m_movementInfo = mi;
 466 }
 467
 468 void WorldSession::HandleDismissControlledVehicle(WorldPacket &recv_data)
 469 {
 470     sLog.outDebug("WORLD: Recvd CMSG_DISMISS_CONTROLLED_VEHICLE");
 471     recv_data.hexlike();
 472
 473     ObjectGuid guid;
 474     MovementInfo mi;
 475
 476     recv_data >> guid.ReadAsPacked();
 477     recv_data >> mi;
 478
 479     uint64 vehicleGUID = _player->GetCharmGUID();
 480
 481     if(!vehicleGUID)                                        // something wrong here...
 482         return;
 483
 484     _player->m_movementInfo = mi;
 485
 486     // using charm guid, because we don't have vehicle guid...
 487     if(Vehicle *vehicle = _player->GetMap()->GetVehicle(vehicleGUID))
 488     {
 489         // Aura::HandleAuraControlVehicle will call Player::ExitVehicle
 490         vehicle->RemoveSpellsCausingAura(SPELL_AURA_CONTROL_VEHICLE);
 491     }
 492 }
 493
 494 void WorldSession::HandleMountSpecialAnimOpcode(WorldPacket& /*recvdata*/)
 495 {
 496     //sLog.outDebug("WORLD: Recvd CMSG_MOUNTSPECIAL_ANIM");
 497
 498     WorldPacket data(SMSG_MOUNTSPECIAL_ANIM, 8);
 499     data << uint64(GetPlayer()->GetGUID());
 500
 501     GetPlayer()->SendMessageToSet(&data, false);
 502 }
 503
 504 void WorldSession::HandleMoveKnockBackAck( WorldPacket & recv_data )
 505 {
 506     sLog.outDebug("CMSG_MOVE_KNOCK_BACK_ACK");
 507
 508     ObjectGuid guid;                                        // guid - unused
 509     MovementInfo movementInfo;
 510
 511     recv_data >> guid.ReadAsPacked();
 512     recv_data >> Unused<uint32>();                          // unk
 513     recv_data >> movementInfo;
 514 }
 515
 516 void WorldSession::HandleMoveHoverAck( WorldPacket& recv_data )
 517 {
 518     sLog.outDebug("CMSG_MOVE_HOVER_ACK");
 519
 520     ObjectGuid guid;                                        // guid - unused
 521     MovementInfo movementInfo;
 522
 523     recv_data >> guid.ReadAsPacked();
 524     recv_data >> Unused<uint32>();                          // unk1
 525     recv_data >> movementInfo;
 526     recv_data >> Unused<uint32>();                          // unk2
 527 }
 528
 529 void WorldSession::HandleMoveWaterWalkAck(WorldPacket& recv_data)
 530 {
 531     sLog.outDebug("CMSG_MOVE_WATER_WALK_ACK");
 532
 533     ObjectGuid guid;                                        // guid - unused
 534     MovementInfo movementInfo;
 535
 536     recv_data >> guid.ReadAsPacked();
 537     recv_data >> Unused<uint32>();                          // unk1
 538     recv_data >> movementInfo;
 539     recv_data >> Unused<uint32>();                          // unk2
 540 }
 541
 542 void WorldSession::HandleSummonResponseOpcode(WorldPacket& recv_data)
 543 {
 544     if(!_player->isAlive() || _player->isInCombat() )
 545         return;
 546
 547     uint64 summoner_guid;
 548     bool agree;
 549     recv_data >> summoner_guid;
 550     recv_data >> agree;
 551
 552     _player->SummonIfPossible(agree);
 553 }