void WorldSession::HandleMovementOpcodes( WorldPacket & recv_data )
{
bool moved = true;
if(!_player->IsInWorld() || _player->m_uint32Values[UNIT_FIELD_CHARMEDBY] || _player->GetPlayerStatus() == TRANSFER_PENDING || _player->GetTaxiState())
return;
// spell cancel on movement, for now only fishing is added
Object * t_go = _player->m_SummonedObject;
if (t_go)
{
if (t_go->GetEntry() == GO_FISHING_BOBBER)
((GameObject*)t_go)->EndFishing(GetPlayer(),true);
}
/************************************************************************/
/* Clear standing state to stand. */
/************************************************************************/
if( recv_data.GetOpcode() == MSG_MOVE_START_FORWARD )
_player->SetStandState( STANDSTATE_STAND );
/************************************************************************/
/* Make sure the packet is the correct size range. */
/************************************************************************/
if(recv_data.size() > 80) { Disconnect(); return; }
/************************************************************************/
/* Read Movement Data Packet */
/************************************************************************/
movement_info.init(recv_data);
/************************************************************************/
/* Update player movement state */
/************************************************************************/
switch( recv_data.GetOpcode() )
{
case MSG_MOVE_START_FORWARD:
case MSG_MOVE_START_BACKWARD:
_player->moving = true;
break;
case MSG_MOVE_START_STRAFE_LEFT:
case MSG_MOVE_START_STRAFE_RIGHT:
_player->strafing = true;
break;
case MSG_MOVE_JUMP:
_player->jumping = true;
break;
case MSG_MOVE_STOP:
_player->moving = false;
break;
case MSG_MOVE_STOP_STRAFE:
_player->strafing = false;
break;
case MSG_MOVE_FALL_LAND:
_player->jumping = false;
break;
default:
moved = false;
break;
}
if( moved )
{
if( !_player->moving && !_player->strafing && !_player->jumping )
_player->m_isMoving = false;
else
_player->m_isMoving = true;
}
/************************************************************************/
/* Anti-Fly Hack Checks */
/************************************************************************/
if( sWorld.antihack_flight && ( recv_data.GetOpcode() == CMSG_MOVE_FLY_START_AND_END || recv_data.GetOpcode() == CMSG_FLY_PITCH_DOWN_AFTER_UP ) && !( movement_info.flags & MOVEFLAG_SWIMMING || movement_info.flags & MOVEFLAG_FALLING || movement_info.flags & MOVEFLAG_FALLING_FAR || movement_info.flags & MOVEFLAG_FREE_FALLING ) && _player->flying_aura == 0 )
{
if( sWorld.no_antihack_on_gm && _player->GetSession()->HasGMPermissions() )
{
// Do nothing.
}
else
{
_player->BroadcastMessage( "Flyhack detected. In case the server is wrong then make a report how to reproduce this case. You will be logged out in 5 seconds." );
sEventMgr.AddEvent( _player, &Player::_Kick, EVENT_PLAYER_KICK, 5000, 1, 0 );
}
}
//update the detector
if( sWorld.antihack_speed && !_player->GetTaxiState() && _player->m_TransporterGUID == 0 && !_player->GetSession()->GetPermissionCount())
{
// simplified: just take the fastest speed. less chance of fuckups too
float speed = ( _player->flying_aura ) ? _player->m_flySpeed : ( _player->m_swimSpeed >_player-> m_runSpeed ) ? _player->m_swimSpeed : _player->m_runSpeed;
_player->SDetector->AddSample( movement_info.x, movement_info.y, getMSTime(), speed );
if( _player->SDetector->IsCheatDetected() )
_player->SDetector->ReportCheater( _player );
}
/************************************************************************/
/* Remove Emote State */
/************************************************************************/
if(_player->m_uint32Values[UNIT_NPC_EMOTESTATE])
_player->SetUInt32Value(UNIT_NPC_EMOTESTATE,0);
/************************************************************************/
/* Make sure the co-ordinates are valid. */
/************************************************************************/
if( !((movement_info.y >= _minY) && (movement_info.y <= _maxY)) || !((movement_info.x >= _minX) && (movement_info.x <= _maxX)) )
{
Disconnect();
return;
}
/************************************************************************/
/* Dump movement flags - Wheee! */
/************************************************************************/
#if 0
printf("=========================================================\n");
printf("Full movement flags: 0x%.8X\n", movement_info.flags);
uint32 z, b;
for(z = 1, b = 1; b < 32;)
{
if(movement_info.flags & z)
printf(" Bit %u (0x%.8X or %u) is set!\n", b, z, z);
z <<= 1;
b+=1;
}
printf("=========================================================\n");
#endif
/************************************************************************/
/* Orientation dumping */
/************************************************************************/
#if 0
printf("Packet: 0x%03X (%s)\n", recv_data.GetOpcode(), LookupName( recv_data.GetOpcode(), g_worldOpcodeNames ) );
printf("Orientation: %.10f\n", movement_info.orientation);
#endif
/************************************************************************/
/* Calculate the timestamp of the packet we have to send out */
/************************************************************************/
size_t pos = (size_t)m_MoverWoWGuid.GetNewGuidLen() + 1;
uint32 mstime = mTimeStamp();
int32 move_time;
if(m_clientTimeDelay == 0)
m_clientTimeDelay = mstime - movement_info.time;
/************************************************************************/
/* Copy into the output buffer. */
/************************************************************************/
if(_player->m_inRangePlayers.size())
{
move_time = (movement_info.time - (mstime - m_clientTimeDelay)) + MOVEMENT_PACKET_TIME_DELAY + mstime;
memcpy(&movement_packet[pos], recv_data.contents(), recv_data.size());
movement_packet[pos+5]=0;
/************************************************************************/
/* Distribute to all inrange players. */
/************************************************************************/
for(set<Player*>::iterator itr = _player->m_inRangePlayers.begin(); itr != _player->m_inRangePlayers.end(); ++itr)
{
#ifdef USING_BIG_ENDIAN
*(uint32*)&movement_packet[pos+5] = swap32(move_time + (*itr)->GetSession()->m_moveDelayTime);
#else
*(uint32*)&movement_packet[pos+5] = uint32(move_time + (*itr)->GetSession()->m_moveDelayTime);
#endif
#if defined(ENABLE_COMPRESSED_MOVEMENT) && defined(ENABLE_COMPRESSED_MOVEMENT_FOR_PLAYERS)
if( _player->GetPositionNC().Distance2DSq((*itr)->GetPosition()) >= World::m_movementCompressThreshold )
(*itr)->AppendMovementData( recv_data.GetOpcode(), uint16(recv_data.size() + pos), movement_packet );
else
(*itr)->GetSession()->OutPacket(recv_data.GetOpcode(), uint16(recv_data.size() + pos), movement_packet);
#else
(*itr)->GetSession()->OutPacket(recv_data.GetOpcode(), uint16(recv_data.size() + pos), movement_packet);
#endif
}
}
/************************************************************************/
/* Falling damage checks */
/************************************************************************/
if( _player->blinked )
{
_player->blinked = false;
_player->m_fallDisabledUntil = UNIXTIME + 5;
_player->SpeedCheatDelay( 2000 ); //some say they managed to trigger system with knockback. Maybe they moved in air ?
}
else
{
if( recv_data.GetOpcode() == MSG_MOVE_FALL_LAND )
{
// player has finished falling
//if _player->z_axisposition contains no data then set to current position
if( !_player->z_axisposition )
_player->z_axisposition = movement_info.z;
// calculate distance fallen
uint32 falldistance = float2int32( _player->z_axisposition - movement_info.z );
/*if player is a rogue or druid(in cat form), then apply -17 modifier to fall distance.
these checks need improving, low level rogue/druid should not receive this benefit*/
if( ( _player->getClass() == ROGUE ) || ( _player->GetShapeShift() == FORM_CAT ) )
{
if( falldistance > 17 )
falldistance -=17;
else
falldistance = 1;
}
//checks that player has fallen more than 12 units, otherwise no damage will be dealt
//falltime check is also needed here, otherwise sudden changes in Z axis position, such as using !recall, may result in death
if( _player->isAlive() && !_player->GodModeCheat && falldistance > 12 && ( UNIXTIME >= _player->m_fallDisabledUntil ) && movement_info.FallTime > 1000 )
{
// 1.7% damage for each unit fallen on Z axis over 13
uint32 health_loss = float2int32( float( _player->GetUInt32Value( UNIT_FIELD_MAXHEALTH ) * ( ( falldistance ) * 0.017 ) ) );
if( health_loss >= _player->GetUInt32Value( UNIT_FIELD_HEALTH ) )
health_loss = _player->GetUInt32Value( UNIT_FIELD_HEALTH );
_player->SendEnvironmentalDamageLog( _player->GetGUID(), DAMAGE_FALL, health_loss );
_player->DealDamage( _player, health_loss, 0, 0, 0 );
//_player->RemoveStealth(); // cebernic : why again? lost stealth by AURA_INTERRUPT_ON_ANY_DAMAGE_TAKEN already.
}
_player->z_axisposition = 0.0f;
}
else
//whilst player is not falling, continuosly update Z axis position.
//once player lands this will be used to determine how far he fell.
if( !( movement_info.flags & MOVEFLAG_FALLING ) )
_player->z_axisposition = movement_info.z;
}
/************************************************************************/
/* Transporter Setup */
/************************************************************************/
if(!_player->m_lockTransportVariables)
{
if(_player->m_TransporterGUID && !movement_info.transGuid)
{
/* we left the transporter we were on */
if(_player->m_CurrentTransporter)
{
_player->m_CurrentTransporter->RemovePlayer(_player);
_player->m_CurrentTransporter = NULL;
}
_player->m_TransporterGUID = 0;
_player->SpeedCheatReset();
}
else if(movement_info.transGuid)
{
if(!_player->m_TransporterGUID)
{
/* just walked into a transport */
if(_player->IsMounted())
_player->RemoveAura(_player->m_MountSpellId);
_player->m_CurrentTransporter = objmgr.GetTransporter(GUID_LOPART(movement_info.transGuid));
if(_player->m_CurrentTransporter)
_player->m_CurrentTransporter->AddPlayer(_player);
/* set variables */
_player->m_TransporterGUID = movement_info.transGuid;
_player->m_TransporterTime = movement_info.transTime;
_player->m_TransporterX = movement_info.transX;
_player->m_TransporterY = movement_info.transY;
_player->m_TransporterZ = movement_info.transZ;
}
else
{
/* no changes */
_player->m_TransporterTime = movement_info.transTime;
_player->m_TransporterX = movement_info.transX;
_player->m_TransporterY = movement_info.transY;
_player->m_TransporterZ = movement_info.transZ;
}
}
/*float x = movement_info.x - movement_info.transX;
float y = movement_info.y - movement_info.transY;
float z = movement_info.z - movement_info.transZ;
Transporter* trans = _player->m_CurrentTransporter;
if(trans) sChatHandler.SystemMessageToPlr(_player, "Client t pos: %f %f\nServer t pos: %f %f Diff: %f %f", x,y, trans->GetPositionX(), trans->GetPositionY(), trans->CalcDistance(x,y,z), trans->CalcDistance(movement_info.x, movement_info.y, movement_info.z));*/
}
/************************************************************************/
/* Anti-Speed Hack Checks */
/************************************************************************/
/************************************************************************/
/* Breathing System */
/************************************************************************/
_HandleBreathing(movement_info, _player, this);
/************************************************************************/
/* Remove Spells */
/************************************************************************/
_player->RemoveAurasByInterruptFlag(AURA_INTERRUPT_ON_MOVEMENT);
/************************************************************************/
/* Update our position in the server. */
/************************************************************************/
if( _player->m_CurrentCharm && _player->GetMapMgr() )
{
Unit *cc = _player->GetMapMgr()->GetUnit( _player->m_CurrentCharm );
if( cc )
cc->SetPosition(movement_info.x, movement_info.y, movement_info.z, movement_info.orientation);
}
else
{
if(!_player->m_CurrentTransporter)
{
if( !_player->SetPosition(movement_info.x, movement_info.y, movement_info.z, movement_info.orientation) )
{
_player->SetUInt32Value(UNIT_FIELD_HEALTH, 0);
_player->KillPlayer();
}
}
else
{
_player->SetPosition(movement_info.x, movement_info.y, movement_info.z,
movement_info.orientation + movement_info.transO, false);
}
}
}
void WorldSession::HandleMovementOpcodes( WorldPacket & recv_data )
{
if(!_player->IsInWorld() || _player->m_uint32Values[UNIT_FIELD_CHARMEDBY] || _player->GetPlayerStatus() == TRANSFER_PENDING || _player->GetTaxiState())
return;
// spell cancel on movement, for now only fishing is added
Object * t_go = _player->m_SummonedObject;
uint32 mstime_s;
if (t_go)
{
if (t_go->GetEntry() == GO_FISHING_BOBBER)
((GameObject*)t_go)->EndFishing(GetPlayer(),true);
}
/************************************************************************/
/* Make sure the packet is the correct size range. */
/************************************************************************/
if(recv_data.size() > 80) { Disconnect(); return; }
/************************************************************************/
/* Read Movement Data Packet */
/************************************************************************/
movement_info.init(recv_data);
/************************************************************************/
/* Update player movement state */
/************************************************************************/
if( recv_data.GetOpcode() == MSG_MOVE_STOP
|| recv_data.GetOpcode() == MSG_MOVE_STOP_STRAFE
|| recv_data.GetOpcode() == MSG_MOVE_STOP_TURN
|| recv_data.GetOpcode() == MSG_MOVE_FALL_LAND
|| ( recv_data.GetOpcode() == MSG_MOVE_SET_FACING && !(movement_info.flags & MOVEFLAG_MOVING_MASK) ) )
{
if( _player->m_isMoving )
{
#ifdef _DEBUG
// printf("MOVING: FALSE (Packet %s)\n", LookupName( recv_data.GetOpcode(), g_worldOpcodeNames ) );
#endif
mstime_s = getMSTime();
_player->_SpeedhackCheck(mstime_s);
_player->m_isMoving = false;
_player->_startMoveTime = 0;
}
}
else
{
if( !_player->m_isMoving )
{
#ifdef _DEBUG
// printf("MOVING: TRUE (Packet %s)\n", LookupName( recv_data.GetOpcode(), g_worldOpcodeNames ) );
#endif
mstime_s = getMSTime();
_player->m_isMoving = true;
_player->_startMoveTime = mstime_s;
_player->_lastHeartbeatPosition = _player->GetPosition();
}
}
/************************************************************************/
/* Remove Emote State */
/************************************************************************/
if(_player->m_uint32Values[UNIT_NPC_EMOTESTATE])
_player->SetUInt32Value(UNIT_NPC_EMOTESTATE,0);
/************************************************************************/
/* Make sure the co-ordinates are valid. */
/************************************************************************/
if( !((movement_info.y >= _minY) && (movement_info.y <= _maxY)) || !((movement_info.x >= _minX) && (movement_info.x <= _maxX)) )
{
Disconnect();
return;
}
/************************************************************************/
/* Dump movement flags - Wheee! */
/************************************************************************/
#if 0
printf("=========================================================\n");
printf("Full movement flags: 0x%.8X\n", movement_info.flags);
uint32 z, b;
for(z = 1, b = 1; b < 32;)
{
if(movement_info.flags & z)
printf(" Bit %u (0x%.8X or %u) is set!\n", b, z, z);
z <<= 1;
b+=1;
}
printf("=========================================================\n");
#endif
/************************************************************************/
/* Orientation dumping */
/************************************************************************/
#if 0
printf("Packet: 0x%03X (%s)\n", recv_data.GetOpcode(), LookupName( recv_data.GetOpcode(), g_worldOpcodeNames ) );
printf("Orientation: %.10f\n", movement_info.orientation);
#endif
/************************************************************************/
/* Anti-Hack Checks */
/************************************************************************/
if( !(HasGMPermissions() && sWorld.no_antihack_on_gm) && !_player->m_uint32Values[UNIT_FIELD_CHARM] && !_player->_heartbeatDisable)
{
/************************************************************************/
/* Anti-Teleport */
/************************************************************************/
if(sWorld.antihack_teleport && _player->m_position.Distance2DSq(movement_info.x, movement_info.y) > 5625.0f
&& _player->m_runSpeed < 50.0f && !_player->m_TransporterGUID)
{
sCheatLog.writefromsession(this, "Used teleport hack {3}, speed was %f", _player->m_runSpeed);
Disconnect();
return;
}
}
/************************************************************************/
/* Calculate the timestamp of the packet we have to send out */
/************************************************************************/
size_t pos = (size_t)m_MoverWoWGuid.GetNewGuidLen() + 1;
uint32 mstime = mTimeStamp();
int32 move_time;
if(m_clientTimeDelay == 0)
m_clientTimeDelay = mstime - movement_info.time;
/************************************************************************/
/* Copy into the output buffer. */
/************************************************************************/
if(_player->m_inRangePlayers.size())
{
move_time = (movement_info.time - (mstime - m_clientTimeDelay)) + MOVEMENT_PACKET_TIME_DELAY + mstime;
memcpy(&movement_packet[pos], recv_data.contents(), recv_data.size());
movement_packet[pos+5]=0;
/************************************************************************/
/* Distribute to all inrange players. */
/************************************************************************/
for(set<Player*>::iterator itr = _player->m_inRangePlayers.begin(); itr != _player->m_inRangePlayers.end(); ++itr)
{
#ifdef USING_BIG_ENDIAN
*(uint32*)&movement_packet[pos+5] = swap32(move_time + (*itr)->GetSession()->m_moveDelayTime);
#else
*(uint32*)&movement_packet[pos+5] = uint32(move_time + (*itr)->GetSession()->m_moveDelayTime);
#endif
#if defined(ENABLE_COMPRESSED_MOVEMENT) && defined(ENABLE_COMPRESSED_MOVEMENT_FOR_PLAYERS)
if( _player->GetPositionNC().Distance2DSq((*itr)->GetPosition()) >= World::m_movementCompressThreshold )
(*itr)->AppendMovementData( recv_data.GetOpcode(), uint16(recv_data.size() + pos), movement_packet );
else
(*itr)->GetSession()->OutPacket(recv_data.GetOpcode(), uint16(recv_data.size() + pos), movement_packet);
#else
(*itr)->GetSession()->OutPacket(recv_data.GetOpcode(), uint16(recv_data.size() + pos), movement_packet);
#endif
}
}
/************************************************************************/
/* Falling damage checks */
/************************************************************************/
if( _player->blinked )
{
_player->blinked = false;
_player->m_fallDisabledUntil = UNIXTIME + 5;
_player->DelaySpeedHack( 5000 );
}
else
{
if( recv_data.GetOpcode() == MSG_MOVE_FALL_LAND )
{
// player has finished falling
//if _player->z_axisposition contains no data then set to current position
if( !_player->z_axisposition )
_player->z_axisposition = movement_info.z;
// calculate distance fallen
uint32 falldistance = float2int32( _player->z_axisposition - movement_info.z );
/*if player is a rogue or druid(in cat form), then apply -17 modifier to fall distance.
these checks need improving, low level rogue/druid should not receive this benefit*/
if( ( _player->getClass() == ROGUE ) || ( _player->GetShapeShift() == FORM_CAT ) )
{
if( falldistance > 17 )
falldistance -=17;
else
falldistance = 1;
}
//checks that player has fallen more than 12 units, otherwise no damage will be dealt
//falltime check is also needed here, otherwise sudden changes in Z axis position, such as using !recall, may result in death
if( _player->isAlive() && !_player->GodModeCheat && falldistance > 12 && ( UNIXTIME >= _player->m_fallDisabledUntil ) && movement_info.FallTime > 1000 )
{
// 1.7% damage for each unit fallen on Z axis over 13
uint32 health_loss = float2int32( float( _player->GetUInt32Value( UNIT_FIELD_MAXHEALTH ) * ( ( falldistance - 12 ) * 0.017 ) ) );
if( health_loss >= _player->GetUInt32Value( UNIT_FIELD_HEALTH ) )
health_loss = _player->GetUInt32Value( UNIT_FIELD_HEALTH );
_player->SendEnvironmentalDamageLog( _player->GetGUID(), DAMAGE_FALL, health_loss );
_player->DealDamage( _player, health_loss, 0, 0, 0 );
_player->RemoveStealth(); // Fall Damage will cause stealthed units to lose stealth.
}
_player->z_axisposition = 0.0f;
}
else
//whilst player is not falling, continuosly update Z axis position.
//once player lands this will be used to determine how far he fell.
if( !( movement_info.flags & MOVEFLAG_FALLING ) )
_player->z_axisposition = movement_info.z;
}
/************************************************************************/
/* Transporter Setup */
/************************************************************************/
if(!_player->m_lockTransportVariables)
{
if(_player->m_TransporterGUID && !movement_info.transGuid)
{
/* we left the transporter we were on */
if(_player->m_CurrentTransporter)
{
_player->m_CurrentTransporter->RemovePlayer(_player);
_player->m_CurrentTransporter = NULL;
}
_player->m_TransporterGUID = 0;
_player->ResetHeartbeatCoords();
}
else if(movement_info.transGuid)
{
if(!_player->m_TransporterGUID)
{
/* just walked into a transport */
if(_player->IsMounted())
_player->RemoveAura(_player->m_MountSpellId);
_player->m_CurrentTransporter = objmgr.GetTransporter(GUID_LOPART(movement_info.transGuid));
if(_player->m_CurrentTransporter)
_player->m_CurrentTransporter->AddPlayer(_player);
/* set variables */
_player->m_TransporterGUID = movement_info.transGuid;
_player->m_TransporterUnk = movement_info.transUnk;
_player->m_TransporterX = movement_info.transX;
_player->m_TransporterY = movement_info.transY;
_player->m_TransporterZ = movement_info.transZ;
}
else
{
/* no changes */
_player->m_TransporterUnk = movement_info.transUnk;
_player->m_TransporterX = movement_info.transX;
_player->m_TransporterY = movement_info.transY;
_player->m_TransporterZ = movement_info.transZ;
}
}
/*float x = movement_info.x - movement_info.transX;
float y = movement_info.y - movement_info.transY;
float z = movement_info.z - movement_info.transZ;
Transporter* trans = _player->m_CurrentTransporter;
if(trans) sChatHandler.SystemMessageToPlr(_player, "Client t pos: %f %f\nServer t pos: %f %f Diff: %f %f", x,y, trans->GetPositionX(), trans->GetPositionY(), trans->CalcDistance(x,y,z), trans->CalcDistance(movement_info.x, movement_info.y, movement_info.z));*/
}
/************************************************************************/
/* Anti-Speed Hack Checks */
/************************************************************************/
/************************************************************************/
/* Breathing System */
/************************************************************************/
_HandleBreathing(movement_info, _player, this);
/************************************************************************/
/* Remove Spells */
/************************************************************************/
_player->RemoveAurasByInterruptFlag(AURA_INTERRUPT_ON_MOVEMENT);
/************************************************************************/
/* Update our position in the server. */
/************************************************************************/
if( _player->m_CurrentCharm )
_player->m_CurrentCharm->SetPosition(movement_info.x, movement_info.y, movement_info.z, movement_info.orientation);
else
{
if(!_player->m_CurrentTransporter)
{
if( !_player->SetPosition(movement_info.x, movement_info.y, movement_info.z, movement_info.orientation) )
{
_player->SetUInt32Value(UNIT_FIELD_HEALTH, 0);
_player->KillPlayer();
}
}
else
{
_player->SetPosition(movement_info.x, movement_info.y, movement_info.z,
movement_info.orientation + movement_info.transO, false);
}
}
}
