/*
* Copyright (C) 2008-2016 TrinityCore
* Copyright (C) 2005-2009 MaNGOS
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along
* with this program. If not, see .
*/
#include "Common.h"
#include "WorldPacket.h"
#include "WorldSession.h"
#include "Opcodes.h"
#include "Log.h"
#include "Corpse.h"
#include "Player.h"
#include "Garrison.h"
#include "MapManager.h"
#include "Transport.h"
#include "Battleground.h"
#include "WaypointMovementGenerator.h"
#include "InstanceSaveMgr.h"
#include "ObjectMgr.h"
#include "Vehicle.h"
#include "InstancePackets.h"
#include "MovementPackets.h"
#define MOVEMENT_PACKET_TIME_DELAY 0
void WorldSession::HandleMoveWorldportAckOpcode(WorldPackets::Movement::WorldPortResponse& /*packet*/)
{
HandleMoveWorldportAckOpcode();
}
void WorldSession::HandleMoveWorldportAckOpcode()
{
// ignore unexpected far teleports
if (!GetPlayer()->IsBeingTeleportedFar())
return;
bool seamlessTeleport = GetPlayer()->IsBeingTeleportedSeamlessly();
GetPlayer()->SetSemaphoreTeleportFar(false);
// get the teleport destination
WorldLocation const& loc = GetPlayer()->GetTeleportDest();
// possible errors in the coordinate validity check
if (!MapManager::IsValidMapCoord(loc))
{
LogoutPlayer(false);
return;
}
// get the destination map entry, not the current one, this will fix homebind and reset greeting
MapEntry const* mEntry = sMapStore.LookupEntry(loc.GetMapId());
InstanceTemplate const* mInstance = sObjectMgr->GetInstanceTemplate(loc.GetMapId());
// reset instance validity, except if going to an instance inside an instance
if (GetPlayer()->m_InstanceValid == false && !mInstance)
GetPlayer()->m_InstanceValid = true;
Map* oldMap = GetPlayer()->GetMap();
Map* newMap = sMapMgr->CreateMap(loc.GetMapId(), GetPlayer());
if (GetPlayer()->IsInWorld())
{
TC_LOG_ERROR("network", "%s %s is still in world when teleported from map %s (%u) to new map %s (%u)", GetPlayer()->GetGUID().ToString().c_str(), GetPlayer()->GetName().c_str(), oldMap->GetMapName(), oldMap->GetId(), newMap ? newMap->GetMapName() : "Unknown", loc.GetMapId());
oldMap->RemovePlayerFromMap(GetPlayer(), false);
}
// relocate the player to the teleport destination
// the CannotEnter checks are done in TeleporTo but conditions may change
// while the player is in transit, for example the map may get full
if (!newMap || newMap->CannotEnter(GetPlayer()))
{
TC_LOG_ERROR("network", "Map %d (%s) could not be created for %s (%s), porting player to homebind", loc.GetMapId(), newMap ? newMap->GetMapName() : "Unknown", GetPlayer()->GetGUID().ToString().c_str(), GetPlayer()->GetName().c_str());
GetPlayer()->TeleportTo(GetPlayer()->m_homebindMapId, GetPlayer()->m_homebindX, GetPlayer()->m_homebindY, GetPlayer()->m_homebindZ, GetPlayer()->GetOrientation());
return;
}
float z = loc.GetPositionZ();
if (GetPlayer()->HasUnitMovementFlag(MOVEMENTFLAG_HOVER))
z += GetPlayer()->GetFloatValue(UNIT_FIELD_HOVERHEIGHT);
GetPlayer()->Relocate(loc.GetPositionX(), loc.GetPositionY(), z, loc.GetOrientation());
GetPlayer()->ResetMap();
GetPlayer()->SetMap(newMap);
WorldPackets::Movement::ResumeToken resumeToken;
resumeToken.SequenceIndex = _player->m_movementCounter;
resumeToken.Reason = seamlessTeleport ? 2 : 1;
SendPacket(resumeToken.Write());
if (!seamlessTeleport)
GetPlayer()->SendInitialPacketsBeforeAddToMap();
if (!GetPlayer()->GetMap()->AddPlayerToMap(GetPlayer(), !seamlessTeleport))
{
TC_LOG_ERROR("network", "WORLD: failed to teleport player %s (%s) to map %d (%s) because of unknown reason!",
GetPlayer()->GetName().c_str(), GetPlayer()->GetGUID().ToString().c_str(), loc.GetMapId(), newMap ? newMap->GetMapName() : "Unknown");
GetPlayer()->ResetMap();
GetPlayer()->SetMap(oldMap);
GetPlayer()->TeleportTo(GetPlayer()->m_homebindMapId, GetPlayer()->m_homebindX, GetPlayer()->m_homebindY, GetPlayer()->m_homebindZ, GetPlayer()->GetOrientation());
return;
}
// battleground state prepare (in case join to BG), at relogin/tele player not invited
// only add to bg group and object, if the player was invited (else he entered through command)
if (_player->InBattleground())
{
// cleanup setting if outdated
if (!mEntry->IsBattlegroundOrArena())
{
// We're not in BG
_player->SetBattlegroundId(0, BATTLEGROUND_TYPE_NONE);
// reset destination bg team
_player->SetBGTeam(0);
}
// join to bg case
else if (Battleground* bg = _player->GetBattleground())
{
if (_player->IsInvitedForBattlegroundInstance(_player->GetBattlegroundId()))
bg->AddPlayer(_player);
}
}
if (!seamlessTeleport)
GetPlayer()->SendInitialPacketsAfterAddToMap();
else
{
GetPlayer()->UpdateVisibilityForPlayer();
if (Garrison* garrison = GetPlayer()->GetGarrison())
garrison->SendRemoteInfo();
}
// flight fast teleport case
if (GetPlayer()->GetMotionMaster()->GetCurrentMovementGeneratorType() == FLIGHT_MOTION_TYPE)
{
if (!_player->InBattleground())
{
if (!seamlessTeleport)
{
// short preparations to continue flight
FlightPathMovementGenerator* flight = (FlightPathMovementGenerator*)(GetPlayer()->GetMotionMaster()->top());
flight->Initialize(GetPlayer());
}
return;
}
// battleground state prepare, stop flight
GetPlayer()->GetMotionMaster()->MovementExpired();
GetPlayer()->CleanupAfterTaxiFlight();
}
// resurrect character at enter into instance where his corpse exist after add to map
if (mEntry->IsDungeon() && !GetPlayer()->IsAlive())
if (GetPlayer()->GetCorpseLocation().GetMapId() == mEntry->ID)
{
GetPlayer()->ResurrectPlayer(0.5f, false);
GetPlayer()->SpawnCorpseBones();
}
bool allowMount = !mEntry->IsDungeon() || mEntry->IsBattlegroundOrArena();
if (mInstance)
{
// check if this instance has a reset time and send it to player if so
Difficulty diff = GetPlayer()->GetDifficultyID(mEntry);
if (MapDifficultyEntry const* mapDiff = sDB2Manager.GetMapDifficultyData(mEntry->ID, diff))
{
if (mapDiff->GetRaidDuration())
{
if (time_t timeReset = sInstanceSaveMgr->GetResetTimeFor(mEntry->ID, diff))
{
uint32 timeleft = uint32(timeReset - time(NULL));
GetPlayer()->SendInstanceResetWarning(mEntry->ID, diff, timeleft, true);
}
}
}
// check if instance is valid
if (!GetPlayer()->CheckInstanceValidity(false))
GetPlayer()->m_InstanceValid = false;
// instance mounting is handled in InstanceTemplate
allowMount = mInstance->AllowMount;
}
// mount allow check
if (!allowMount)
_player->RemoveAurasByType(SPELL_AURA_MOUNTED);
// update zone immediately, otherwise leave channel will cause crash in mtmap
uint32 newzone, newarea;
GetPlayer()->GetZoneAndAreaId(newzone, newarea);
GetPlayer()->UpdateZone(newzone, newarea);
// honorless target
if (GetPlayer()->pvpInfo.IsHostile)
GetPlayer()->CastSpell(GetPlayer(), 2479, true);
// in friendly area
else if (GetPlayer()->IsPvP() && !GetPlayer()->HasFlag(PLAYER_FLAGS, PLAYER_FLAGS_IN_PVP))
GetPlayer()->UpdatePvP(false, false);
// resummon pet
GetPlayer()->ResummonPetTemporaryUnSummonedIfAny();
//lets process all delayed operations on successful teleport
GetPlayer()->ProcessDelayedOperations();
}
void WorldSession::HandleSuspendTokenResponse(WorldPackets::Movement::SuspendTokenResponse& /*suspendTokenResponse*/)
{
if (!_player->IsBeingTeleportedFar())
return;
WorldLocation const& loc = GetPlayer()->GetTeleportDest();
if (sMapStore.AssertEntry(loc.GetMapId())->IsDungeon())
{
WorldPackets::Instance::UpdateLastInstance updateLastInstance;
updateLastInstance.MapID = loc.GetMapId();
SendPacket(updateLastInstance.Write());
}
WorldPackets::Movement::NewWorld packet;
packet.MapID = loc.GetMapId();
packet.Pos.Relocate(loc);
packet.Reason = !_player->IsBeingTeleportedSeamlessly() ? NEW_WORLD_NORMAL : NEW_WORLD_SEAMLESS;
SendPacket(packet.Write());
if (_player->IsBeingTeleportedSeamlessly())
HandleMoveWorldportAckOpcode();
}
void WorldSession::HandleMoveTeleportAck(WorldPackets::Movement::MoveTeleportAck& packet)
{
TC_LOG_DEBUG("network", "CMSG_MOVE_TELEPORT_ACK: Guid: %s, Sequence: %u, Time: %u", packet.MoverGUID.ToString().c_str(), packet.AckIndex, packet.MoveTime);
Player* plMover = _player->m_mover->ToPlayer();
if (!plMover || !plMover->IsBeingTeleportedNear())
return;
if (packet.MoverGUID != plMover->GetGUID())
return;
plMover->SetSemaphoreTeleportNear(false);
uint32 old_zone = plMover->GetZoneId();
WorldLocation const& dest = plMover->GetTeleportDest();
plMover->UpdatePosition(dest, true);
uint32 newzone, newarea;
plMover->GetZoneAndAreaId(newzone, newarea);
plMover->UpdateZone(newzone, newarea);
// new zone
if (old_zone != newzone)
{
// honorless target
if (plMover->pvpInfo.IsHostile)
plMover->CastSpell(plMover, 2479, true);
// in friendly area
else if (plMover->IsPvP() && !plMover->HasFlag(PLAYER_FLAGS, PLAYER_FLAGS_IN_PVP))
plMover->UpdatePvP(false, false);
}
// resummon pet
GetPlayer()->ResummonPetTemporaryUnSummonedIfAny();
//lets process all delayed operations on successful teleport
GetPlayer()->ProcessDelayedOperations();
}
void WorldSession::HandleMovementOpcodes(WorldPackets::Movement::ClientPlayerMovement& packet)
{
OpcodeClient opcode = packet.GetOpcode();
Unit* mover = _player->m_mover;
ASSERT(mover != nullptr); // there must always be a mover
Player* plrMover = mover->ToPlayer();
// ignore, waiting processing in WorldSession::HandleMoveWorldportAckOpcode and WorldSession::HandleMoveTeleportAck
if (plrMover && plrMover->IsBeingTeleported())
return;
GetPlayer()->ValidateMovementInfo(&packet.movementInfo);
MovementInfo& movementInfo = packet.movementInfo;
// prevent tampered movement data
if (movementInfo.guid != mover->GetGUID())
{
TC_LOG_ERROR("network", "HandleMovementOpcodes: guid error");
return;
}
if (!movementInfo.pos.IsPositionValid())
{
TC_LOG_ERROR("network", "HandleMovementOpcodes: Invalid Position");
return;
}
// stop some emotes at player move
if (plrMover && (plrMover->GetUInt32Value(UNIT_NPC_EMOTESTATE) != 0))
plrMover->SetUInt32Value(UNIT_NPC_EMOTESTATE, EMOTE_ONESHOT_NONE);
/* handle special cases */
if (!movementInfo.transport.guid.IsEmpty())
{
// transports size limited
// (also received at zeppelin leave by some reason with t_* as absolute in continent coordinates, can be safely skipped)
if (movementInfo.transport.pos.GetPositionX() > 50 || movementInfo.transport.pos.GetPositionY() > 50 || movementInfo.transport.pos.GetPositionZ() > 50)
{
return;
}
if (!Trinity::IsValidMapCoord(movementInfo.pos.GetPositionX() + movementInfo.transport.pos.GetPositionX(), movementInfo.pos.GetPositionY() + movementInfo.transport.pos.GetPositionY(),
movementInfo.pos.GetPositionZ() + movementInfo.transport.pos.GetPositionZ(), movementInfo.pos.GetOrientation() + movementInfo.transport.pos.GetOrientation()))
{
return;
}
// if we boarded a transport, add us to it
if (plrMover)
{
if (!plrMover->GetTransport())
{
if (Transport* transport = plrMover->GetMap()->GetTransport(movementInfo.transport.guid))
transport->AddPassenger(plrMover);
}
else if (plrMover->GetTransport()->GetGUID() != movementInfo.transport.guid)
{
plrMover->GetTransport()->RemovePassenger(plrMover);
if (Transport* transport = plrMover->GetMap()->GetTransport(movementInfo.transport.guid))
transport->AddPassenger(plrMover);
else
movementInfo.ResetTransport();
}
}
if (!mover->GetTransport() && !mover->GetVehicle())
{
GameObject* go = mover->GetMap()->GetGameObject(movementInfo.transport.guid);
if (!go || go->GetGoType() != GAMEOBJECT_TYPE_TRANSPORT)
movementInfo.transport.Reset();
}
}
else if (plrMover && plrMover->GetTransport()) // if we were on a transport, leave
plrMover->m_transport->RemovePassenger(plrMover);
// fall damage generation (ignore in flight case that can be triggered also at lags in moment teleportation to another map).
if (opcode == CMSG_MOVE_FALL_LAND && plrMover && !plrMover->IsInFlight())
plrMover->HandleFall(movementInfo);
if (plrMover && ((movementInfo.flags & MOVEMENTFLAG_SWIMMING) != 0) != plrMover->IsInWater())
{
// now client not include swimming flag in case jumping under water
plrMover->SetInWater(!plrMover->IsInWater() || plrMover->GetBaseMap()->IsUnderWater(movementInfo.pos.GetPositionX(), movementInfo.pos.GetPositionY(), movementInfo.pos.GetPositionZ()));
}
uint32 mstime = getMSTime();
/*----------------------*/
if (m_clientTimeDelay == 0)
m_clientTimeDelay = mstime - movementInfo.time;
/* process position-change */
movementInfo.time = movementInfo.time + m_clientTimeDelay + MOVEMENT_PACKET_TIME_DELAY;
movementInfo.guid = mover->GetGUID();
mover->m_movementInfo = movementInfo;
// Some vehicles allow the passenger to turn by himself
if (Vehicle* vehicle = mover->GetVehicle())
{
if (VehicleSeatEntry const* seat = vehicle->GetSeatForPassenger(mover))
{
if (seat->Flags[0] & VEHICLE_SEAT_FLAG_ALLOW_TURNING)
{
if (movementInfo.pos.GetOrientation() != mover->GetOrientation())
{
mover->SetOrientation(movementInfo.pos.GetOrientation());
mover->RemoveAurasWithInterruptFlags(AURA_INTERRUPT_FLAG_TURNING);
}
}
}
return;
}
mover->UpdatePosition(movementInfo.pos);
WorldPackets::Movement::MoveUpdate moveUpdate;
moveUpdate.movementInfo = &mover->m_movementInfo;
mover->SendMessageToSet(moveUpdate.Write(), _player);
if (plrMover) // nothing is charmed, or player charmed
{
if (plrMover->IsSitState() && (movementInfo.flags & (MOVEMENTFLAG_MASK_MOVING | MOVEMENTFLAG_MASK_TURNING)))
plrMover->SetStandState(UNIT_STAND_STATE_STAND);
plrMover->UpdateFallInformationIfNeed(movementInfo, opcode);
if (movementInfo.pos.GetPositionZ() < plrMover->GetMap()->GetMinHeight(movementInfo.pos.GetPositionX(), movementInfo.pos.GetPositionY()))
{
if (!(plrMover->GetBattleground() && plrMover->GetBattleground()->HandlePlayerUnderMap(_player)))
{
// NOTE: this is actually called many times while falling
// even after the player has been teleported away
/// @todo discard movement packets after the player is rooted
if (plrMover->IsAlive())
{
plrMover->SetFlag(PLAYER_FLAGS, PLAYER_FLAGS_IS_OUT_OF_BOUNDS);
plrMover->EnvironmentalDamage(DAMAGE_FALL_TO_VOID, GetPlayer()->GetMaxHealth());
// player can be alive if GM/etc
// change the death state to CORPSE to prevent the death timer from
// starting in the next player update
if (!plrMover->IsAlive())
plrMover->KillPlayer();
}
}
}
}
}
void WorldSession::HandleForceSpeedChangeAck(WorldPackets::Movement::MovementSpeedAck& packet)
{
GetPlayer()->ValidateMovementInfo(&packet.Ack.movementInfo);
// now can skip not our packet
if (_player->GetGUID() != packet.Ack.movementInfo.guid)
return;
/*----------------*/
// client ACK send one packet for mounted/run case and need skip all except last from its
// in other cases anti-cheat check can be fail in false case
UnitMoveType move_type;
static char const* const move_type_name[MAX_MOVE_TYPE] =
{
"Walk",
"Run",
"RunBack",
"Swim",
"SwimBack",
"TurnRate",
"Flight",
"FlightBack",
"PitchRate"
};
OpcodeClient opcode = packet.GetOpcode();
switch (opcode)
{
case CMSG_MOVE_FORCE_WALK_SPEED_CHANGE_ACK: move_type = MOVE_WALK; break;
case CMSG_MOVE_FORCE_RUN_SPEED_CHANGE_ACK: move_type = MOVE_RUN; break;
case CMSG_MOVE_FORCE_RUN_BACK_SPEED_CHANGE_ACK: move_type = MOVE_RUN_BACK; break;
case CMSG_MOVE_FORCE_SWIM_SPEED_CHANGE_ACK: move_type = MOVE_SWIM; break;
case CMSG_MOVE_FORCE_SWIM_BACK_SPEED_CHANGE_ACK: move_type = MOVE_SWIM_BACK; break;
case CMSG_MOVE_FORCE_TURN_RATE_CHANGE_ACK: move_type = MOVE_TURN_RATE; break;
case CMSG_MOVE_FORCE_FLIGHT_SPEED_CHANGE_ACK: move_type = MOVE_FLIGHT; break;
case CMSG_MOVE_FORCE_FLIGHT_BACK_SPEED_CHANGE_ACK: move_type = MOVE_FLIGHT_BACK; break;
case CMSG_MOVE_FORCE_PITCH_RATE_CHANGE_ACK: move_type = MOVE_PITCH_RATE; break;
default:
TC_LOG_ERROR("network", "WorldSession::HandleForceSpeedChangeAck: Unknown move type opcode: %u", opcode);
return;
}
// skip all forced speed changes except last and unexpected
// in run/mounted case used one ACK and it must be skipped. m_forced_speed_changes[MOVE_RUN] store both.
if (_player->m_forced_speed_changes[move_type] > 0)
{
--_player->m_forced_speed_changes[move_type];
if (_player->m_forced_speed_changes[move_type] > 0)
return;
}
if (!_player->GetTransport() && std::fabs(_player->GetSpeed(move_type) - packet.Speed) > 0.01f)
{
if (_player->GetSpeed(move_type) > packet.Speed) // must be greater - just correct
{
TC_LOG_ERROR("network", "%sSpeedChange player %s is NOT correct (must be %f instead %f), force set to correct value",
move_type_name[move_type], _player->GetName().c_str(), _player->GetSpeed(move_type), packet.Speed);
_player->SetSpeedRate(move_type, _player->GetSpeedRate(move_type));
}
else // must be lesser - cheating
{
TC_LOG_DEBUG("misc", "Player %s from account id %u kicked for incorrect speed (must be %f instead %f)",
_player->GetName().c_str(), _player->GetSession()->GetAccountId(), _player->GetSpeed(move_type), packet.Speed);
_player->GetSession()->KickPlayer();
}
}
}
void WorldSession::HandleSetActiveMoverOpcode(WorldPackets::Movement::SetActiveMover& packet)
{
if (GetPlayer()->IsInWorld())
if (_player->m_mover->GetGUID() != packet.ActiveMover)
TC_LOG_DEBUG("network", "HandleSetActiveMoverOpcode: incorrect mover guid: mover is %s and should be %s" , packet.ActiveMover.ToString().c_str(), _player->m_mover->GetGUID().ToString().c_str());
}
void WorldSession::HandleMoveKnockBackAck(WorldPackets::Movement::MovementAckMessage& movementAck)
{
GetPlayer()->ValidateMovementInfo(&movementAck.Ack.movementInfo);
if (_player->m_mover->GetGUID() != movementAck.Ack.movementInfo.guid)
return;
_player->m_movementInfo = movementAck.Ack.movementInfo;
WorldPackets::Movement::MoveUpdateKnockBack updateKnockBack;
updateKnockBack.movementInfo = &_player->m_movementInfo;
_player->SendMessageToSet(updateKnockBack.Write(), false);
}
void WorldSession::HandleMovementAckMessage(WorldPackets::Movement::MovementAckMessage& movementAck)
{
GetPlayer()->ValidateMovementInfo(&movementAck.Ack.movementInfo);
}
void WorldSession::HandleSummonResponseOpcode(WorldPackets::Movement::SummonResponse& packet)
{
if (!_player->IsAlive() || _player->IsInCombat())
return;
_player->SummonIfPossible(packet.Accept);
}
void WorldSession::HandleSetCollisionHeightAck(WorldPackets::Movement::MoveSetCollisionHeightAck& setCollisionHeightAck)
{
GetPlayer()->ValidateMovementInfo(&setCollisionHeightAck.Data.movementInfo);
}
void WorldSession::HandleMoveTimeSkippedOpcode(WorldPackets::Movement::MoveTimeSkipped& /*moveTimeSkipped*/)
{
}
void WorldSession::HandleMoveSplineDoneOpcode(WorldPackets::Movement::MoveSplineDone& moveSplineDone)
{
MovementInfo movementInfo = moveSplineDone.movementInfo;
_player->ValidateMovementInfo(&movementInfo);
// in taxi flight packet received in 2 case:
// 1) end taxi path in far (multi-node) flight
// 2) switch from one map to other in case multim-map taxi path
// we need process only (1)
uint32 curDest = GetPlayer()->m_taxi.GetTaxiDestination();
if (curDest)
{
TaxiNodesEntry const* curDestNode = sTaxiNodesStore.LookupEntry(curDest);
// far teleport case
if (curDestNode && curDestNode->MapID != GetPlayer()->GetMapId())
{
if (GetPlayer()->GetMotionMaster()->GetCurrentMovementGeneratorType() == FLIGHT_MOTION_TYPE)
{
// short preparations to continue flight
FlightPathMovementGenerator* flight = (FlightPathMovementGenerator*)(GetPlayer()->GetMotionMaster()->top());
flight->SetCurrentNodeAfterTeleport();
TaxiPathNodeEntry const* node = flight->GetPath()[flight->GetCurrentNode()];
flight->SkipCurrentNode();
GetPlayer()->TeleportTo(curDestNode->MapID, node->Loc.X, node->Loc.Y, node->Loc.Z, GetPlayer()->GetOrientation());
}
}
return;
}
// at this point only 1 node is expected (final destination)
if (GetPlayer()->m_taxi.GetPath().size() != 1)
return;
GetPlayer()->CleanupAfterTaxiFlight();
GetPlayer()->SetFallInformation(0, GetPlayer()->GetPositionZ());
if (GetPlayer()->pvpInfo.IsHostile)
GetPlayer()->CastSpell(GetPlayer(), 2479, true);
}