void WorldSession::HandleTrainerBuySpellOpcode(WorldPacket& recv_data)
{
ObjectGuid guid;
uint32 spellId = 0, trainerId = 0;
recv_data >> guid >> trainerId >> spellId;
DEBUG_LOG("WORLD: Received opcode CMSG_TRAINER_BUY_SPELL Trainer: %s, learn spell id is: %u", guid.GetString().c_str(), spellId);
Creature* unit = GetPlayer()->GetNPCIfCanInteractWith(guid, UNIT_NPC_FLAG_TRAINER);
if (!unit)
{
DEBUG_LOG("WORLD: HandleTrainerBuySpellOpcode - %s not found or you can't interact with him.", guid.GetString().c_str());
return;
}
WorldPacket sendData(SMSG_TRAINER_SERVICE, 16);
uint32 trainState = 2;
if (!unit->IsTrainerOf(_player, true))
trainState = 1;
// check present spell in trainer spell list
TrainerSpellData const* cSpells = unit->GetTrainerSpells();
TrainerSpellData const* tSpells = unit->GetTrainerTemplateSpells();
if (!cSpells && !tSpells)
trainState = 1;
// Try find spell in npc_trainer
TrainerSpell const* trainer_spell = cSpells ? cSpells->Find(spellId) : nullptr;
// Not found, try find in npc_trainer_template
if (!trainer_spell && tSpells)
trainer_spell = tSpells->Find(spellId);
// Not found anywhere, cheating?
if (!trainer_spell)
trainState = 1;
// can't be learn, cheat? Or double learn with lags...
uint32 reqLevel = 0;
if (!_player->IsSpellFitByClassAndRace(trainer_spell->learnedSpell, &reqLevel))
trainState = 1;
reqLevel = trainer_spell->isProvidedReqLevel ? trainer_spell->reqLevel : std::max(reqLevel, trainer_spell->reqLevel);
if (_player->GetTrainerSpellState(trainer_spell, reqLevel) != TRAINER_SPELL_GREEN)
trainState = 1;
// apply reputation discount
uint32 nSpellCost = uint32(floor(trainer_spell->spellCost * _player->GetReputationPriceDiscount(unit)));
// check money requirement
if (_player->GetMoney() < nSpellCost && trainState > 1)
trainState = 0;
if (trainState != 2)
{
sendData << ObjectGuid(guid);
sendData << uint32(spellId);
sendData << uint32(trainState);
SendPacket(&sendData);
}
else
{
_player->ModifyMoney(-int64(nSpellCost));
// visual effect on trainer
WorldPacket data;
unit->BuildSendPlayVisualPacket(&data, 0xB3, false);
SendPacket(&data);
// visual effect on player
_player->BuildSendPlayVisualPacket(&data, 0x016A, true);
SendPacket(&data);
// learn explicitly or cast explicitly
// TODO - Are these spells really cast correctly this way?
if (trainer_spell->IsCastable())
_player->CastSpell(_player, trainer_spell->spell, true);
else
_player->learnSpell(spellId, false);
sendData << ObjectGuid(guid);
sendData << uint32(spellId); // should be same as in packet from client
sendData << uint32(trainState);
SendPacket(&sendData);
}
}
void WorldSession::HandleTrainerBuySpellOpcode(WorldPacket& recv_data)
{
ObjectGuid guid;
uint32 spellId = 0, trainerId = 0;
recv_data >> guid >> trainerId >> spellId;
DEBUG_LOG("WORLD: Received CMSG_TRAINER_BUY_SPELL Trainer: %s, learn spell id is: %u", guid.GetString().c_str(), spellId);
Creature* unit = GetPlayer()->GetNPCIfCanInteractWith(guid, UNIT_NPC_FLAG_TRAINER);
if (!unit)
{
DEBUG_LOG("WORLD: HandleTrainerBuySpellOpcode - %s not found or you can't interact with him.", guid.GetString().c_str());
return;
}
// remove fake death
if (GetPlayer()->hasUnitState(UNIT_STAT_DIED))
GetPlayer()->RemoveSpellsCausingAura(SPELL_AURA_FEIGN_DEATH);
if (!unit->IsTrainerOf(_player, true))
return;
// check present spell in trainer spell list
TrainerSpellData const* cSpells = unit->GetTrainerSpells();
TrainerSpellData const* tSpells = unit->GetTrainerTemplateSpells();
if (!cSpells && !tSpells)
return;
// Try find spell in npc_trainer
TrainerSpell const* trainer_spell = cSpells ? cSpells->Find(spellId) : NULL;
// Not found, try find in npc_trainer_template
if (!trainer_spell && tSpells)
trainer_spell = tSpells->Find(spellId);
// Not found anywhere, cheating?
if (!trainer_spell)
return;
// can't be learn, cheat? Or double learn with lags...
uint32 reqLevel = 0;
if (!_player->IsSpellFitByClassAndRace(trainer_spell->learnedSpell, &reqLevel))
return;
reqLevel = trainer_spell->isProvidedReqLevel ? trainer_spell->reqLevel : std::max(reqLevel, trainer_spell->reqLevel);
if (_player->GetTrainerSpellState(trainer_spell, reqLevel) != TRAINER_SPELL_GREEN)
return;
// apply reputation discount
uint32 nSpellCost = uint32(floor(trainer_spell->spellCost * _player->GetReputationPriceDiscount(unit)));
// check money requirement
if (_player->GetMoney() < nSpellCost)
return;
_player->ModifyMoney(-int32(nSpellCost));
// visual effect on trainer
WorldPacket data;
unit->BuildSendPlayVisualPacket(&data, 0xB3, false);
SendPacket(&data);
// visual effect on player
_player->BuildSendPlayVisualPacket(&data, 0x016A, true);
SendPacket(&data);
// learn explicitly or cast explicitly
if (trainer_spell->IsCastable())
_player->CastSpell(_player, trainer_spell->spell, true);
else
_player->learnSpell(spellId, false);
data.Initialize(SMSG_TRAINER_BUY_SUCCEEDED, 12);
data << ObjectGuid(guid);
data << uint32(spellId); // should be same as in packet from client
SendPacket(&data);
}