bool OnUse (Player *pPlayer, Item *pItem, SpellCastTargets const& targets)
{
if (targets.getUnitTarget() && targets.getUnitTarget()->GetTypeId() == TYPEID_UNIT && targets.getUnitTarget()->GetEntry() == 20748 && !targets.getUnitTarget()->HasAura(32578))
return false;
pPlayer->SendEquipError(EQUIP_ERR_CANT_DO_RIGHT_NOW, pItem, NULL);
return true;
}
bool ItemUse_item_attuned_crystal_cores(Player *player, Item* _Item, SpellCastTargets const& targets)
{
if( targets.getUnitTarget() && targets.getUnitTarget()->GetTypeId()==TYPEID_UNIT &&
targets.getUnitTarget()->GetEntry() == 24972 && targets.getUnitTarget()->isDead() )
return false;
player->SendEquipError(EQUIP_ERR_CANT_DO_RIGHT_NOW,_Item,NULL);
return true;
}
bool ItemUse_item_protovoltaic_magneto_collector(Player *player, Item* _Item, SpellCastTargets const& targets)
{
if (targets.getUnitTarget() && targets.getUnitTarget()->GetTypeId()==TYPEID_UNIT &&
targets.getUnitTarget()->GetEntry() == 21729)
return false;
player->SendEquipError(EQUIP_ERR_CANT_DO_RIGHT_NOW,_Item,NULL);
return true;
}
bool ItemUse_item_razorthorn_flayer_gland(Player *player, Item* _Item, SpellCastTargets const& targets)
{
if (targets.getUnitTarget() && targets.getUnitTarget()->GetTypeId()==TYPEID_UNIT &&
targets.getUnitTarget()->GetEntry() == 24922)
return false;
player->SendEquipError(EQUIP_ERR_YOU_CAN_NEVER_USE_THAT_ITEM,_Item,NULL);
return true;
}
bool ItemUse_item_disciplinary_rod(Player *player, Item* _Item, SpellCastTargets const& targets)
{
if (targets.getUnitTarget() && targets.getUnitTarget()->GetTypeId()==TYPEID_UNIT &&
(targets.getUnitTarget()->GetEntry() == 15941 || targets.getUnitTarget()->GetEntry() == 15945))
return false;
player->SendEquipError(EQUIP_ERR_CANT_DO_RIGHT_NOW,_Item,NULL);
return true;
}
bool ItemUse_item_gor_dreks_ointment(Player *player, Item* _Item, SpellCastTargets const& targets)
{
if( targets.getUnitTarget() && targets.getUnitTarget()->GetTypeId()==TYPEID_UNIT &&
targets.getUnitTarget()->GetEntry() == 20748 && !targets.getUnitTarget()->HasAura(32578) )
return false;
player->SendEquipError(EQUIP_ERR_CANT_DO_RIGHT_NOW,_Item,NULL);
return true;
}
bool ItemUse_item_blackwhelp_net(Player *player, Item* _Item, SpellCastTargets const& targets)
{
if (targets.getUnitTarget() && targets.getUnitTarget()->GetTypeId()==TYPEID_UNIT &&
targets.getUnitTarget()->GetEntry() == 21387)
return false;
player->SendEquipError(EQUIP_ERR_YOU_CAN_NEVER_USE_THAT_ITEM,_Item,NULL);
return true;
}
bool ItemUse_item_attuned_crystal_cores(Player* player, Item* _Item, SpellCastTargets const& targets)
{
if (targets.getUnitTarget() && targets.getUnitTarget()->GetTypeId() == TYPEID_UNIT &&
targets.getUnitTarget()->GetEntry() == ERRATIC_SENTRY && targets.getUnitTarget()->isDead() &&
(player->GetQuestStatus(ERRATIC_BEHAVIOUR) == QUEST_STATUS_INCOMPLETE || player->GetQuestStatus(FURTHER_CONVERSIONS) == QUEST_STATUS_INCOMPLETE))
return false;
player->SendEquipError(EQUIP_ERR_CANT_DO_RIGHT_NOW, _Item, NULL);
return true;
}
bool ItemUse_item_battery(Player* player, Item* _Item, SpellCastTargets const& targets)
{
if (targets.getUnitTarget() && targets.getUnitTarget()->GetTypeId() == TYPEID_UNIT &&
targets.getUnitTarget()->GetEntry() == 18879 && player->GetQuestStatus(10190) == QUEST_STATUS_INCOMPLETE &&
(targets.getUnitTarget()->GetHealthPct() <= 25))
return false;
player->SendEquipError(EQUIP_ERR_CANT_DO_RIGHT_NOW, _Item, NULL);
return true;
}
bool ItemUse_item_vorenthals_presence(Player *player, Item* _Item, SpellCastTargets const& targets)
{
// allow use
if (targets.getUnitTarget() && targets.getUnitTarget()->GetTypeId()==TYPEID_UNIT &&
targets.getUnitTarget()->GetEntry() == 20132)
return false;
// error
player->SendEquipError(EQUIP_ERR_YOU_CAN_NEVER_USE_THAT_ITEM,_Item,NULL);
return true;
}
bool ItemUse_item_attuned_crystal_cores(Player* player, Item* _Item, SpellCastTargets const& targets)
{
if (targets.getUnitTarget() && targets.getUnitTarget()->GetTypeId() == TYPEID_UNIT &&
targets.getUnitTarget()->GetEntry() == 24972 && targets.getUnitTarget()->isDead() &&
(player->GetQuestStatus(11524) == QUEST_STATUS_INCOMPLETE || player->GetQuestStatus(11525) == QUEST_STATUS_INCOMPLETE))
{
CAST_CRE(targets.getUnitTarget())->RemoveCorpse();
return false;
}
player->SendEquipError(EQUIP_ERR_CANT_DO_RIGHT_NOW, _Item, NULL);
return true;
}
bool ItemUse_item_alystrosAggro(Player* pPlayer, Item* pItem, const SpellCastTargets &pTargets)
{
if(pTargets.getUnitTarget()->GetEntry() == 27249)
{
pTargets.getUnitTarget()->AddThreat(pPlayer,20.0f);
}
else
{
Spell::SendCastResult(pPlayer, GetSpellStore()->LookupEntry(49566), 1, SPELL_FAILED_BAD_TARGETS);
return false;
}
return true;
}
bool ItemUse_item_voodoo_charm(Player *player, Item* _Item, SpellCastTargets const& targets)
{
if (targets.getUnitTarget() && targets.getUnitTarget()->GetTypeId()==TYPEID_UNIT && targets.getUnitTarget()->isDead() &&
targets.getUnitTarget()->GetEntry()==7318)
return false;
WorldPacket data(SMSG_CAST_FAILED, (4+2)); // prepare packet error message
data << uint32(_Item->GetEntry()); // itemId
data << uint8(SPELL_FAILED_BAD_TARGETS); // reason
player->GetSession()->SendPacket(&data); // send message: Invalid target
player->SendEquipError(EQUIP_ERR_NONE,_Item,NULL); // break spell
return true;
}
bool ItemUse_item_Tillinghasts_Plague_Canister(Player* pPlayer, Item* pItem, const SpellCastTargets &pTargets)
{
if(pTargets.getUnitTarget()->GetEntry() == 23777)
{
pPlayer->CastSpell(pTargets.getUnitTarget(),43157,true);
pPlayer->DealDamage(pTargets.getUnitTarget(),pTargets.getUnitTarget()->GetMaxHealth(), NULL, DIRECT_DAMAGE, SPELL_SCHOOL_MASK_NORMAL, NULL, false);
}
else
{
Spell::SendCastResult(pPlayer, GetSpellStore()->LookupEntry(43157), 1, SPELL_FAILED_BAD_TARGETS);
return false;
}
return true;
}
bool ItemUse_item_gor_dreks_ointment(Player* pPlayer, Item* pItem, const SpellCastTargets& pTargets)
{
if (pTargets.getUnitTarget() && pTargets.getUnitTarget()->GetTypeId() == TYPEID_UNIT && pTargets.getUnitTarget()->HasAura(SPELL_GORDREKS_OINTMENT))
{
pPlayer->SendEquipError(EQUIP_ERR_NONE, pItem, NULL);
if (const SpellEntry* pSpellInfo = GetSpellStore()->LookupEntry(SPELL_GORDREKS_OINTMENT))
Spell::SendCastResult(pPlayer, pSpellInfo, 1, SPELL_FAILED_TARGET_AURASTATE);
return true;
}
return false;
}
bool ItemUse_item_chest_of_containment_coffers(Player* player, Item* _Item, SpellCastTargets const& targets)
{
if (targets.getUnitTarget() && targets.getUnitTarget()->GetTypeId() == TYPEID_UNIT && targets.getUnitTarget()->IsAlive() &&
targets.getUnitTarget()->GetEntry() == MOB_RIFT_SPAWN && targets.getUnitTarget()->HasAura(SPELL_SELF_STUN_30SEC))
return false;
WorldPacket data(SMSG_CAST_FAILED, (4 + 2)); // prepare packet error message
data << uint32(_Item->GetEntry()); // itemId
data << uint8(SPELL_FAILED_NOT_READY); // reason
player->GetSession()->SendPacket(&data); // send message: Not ready yet
player->SendEquipError(EQUIP_ERR_NONE, _Item, NULL); // break spell
return true;
}
void WorldSession::HandleCastSpellOpcode(WorldPacket& recvPacket)
{
uint32 spellId;
uint8 cast_count;
recvPacket >> spellId;
recvPacket >> cast_count;
DEBUG_LOG("WORLD: got cast spell packet, spellId - %u, cast_count: %u data length = %i",
spellId, cast_count, recvPacket.size());
SpellEntry const* spellInfo = sSpellStore.LookupEntry(spellId);
if (!spellInfo)
{
sLog.outError("WORLD: unknown spell id %u", spellId);
return;
}
// not have spell or spell passive and not casted by client
if (!_player->HasSpell (spellId) || IsPassiveSpell(spellId))
{
//cheater? kick? ban?
return;
}
// can't use our own spells when we're in possession of another unit,
if (_player->isPossessing())
return;
// client provided targets
SpellCastTargets targets;
recvPacket >> targets.ReadForCaster(_player);
Unit* target = targets.getUnitTarget();
if (target) // auto-selection buff level base at target level (in spellInfo)
{
// if rank not found then function return NULL but in explicit cast case original spell can be casted and later failed with appropriate error message
if (SpellEntry const* actualSpellInfo = sSpellMgr.SelectAuraRankForPlayerLevel(spellInfo, target->getLevel()))
spellInfo = actualSpellInfo;
}
if (spellInfo->AttributesEx2 & SPELL_ATTR2_AUTOREPEAT_FLAG)
{
if (_player->GetCurrentSpell(CURRENT_AUTOREPEAT_SPELL) && _player->GetCurrentSpell(CURRENT_AUTOREPEAT_SPELL)->m_spellInfo->Id == spellInfo->Id)
return;
}
// When casting a combat spell the unit has to be flagged as initiating combat
// No need to check if spell is self-cast because combat spells can only be cast on self with commands
if (target && !IsNonCombatSpell(spellInfo))
_player->setInitiatingCombat(true);
Spell* spell = new Spell(_player, spellInfo, false);
spell->m_cast_count = cast_count; // set count of casts
spell->prepare(&targets);
}
bool ItemUse_item_muiseks_vessel(Player *player, Item* _Item, SpellCastTargets const& targets)
{
Unit* uTarget = targets.getUnitTarget();
uint32 itemSpell = _Item->GetProto()->Spells[0].SpellId;
uint32 cEntry = 0;
uint32 cEntry2 = 0;
uint32 cEntry3 = 0;
uint32 cEntry4 = 0;
if(itemSpell)
{
switch(itemSpell)
{
case 11885: //Wandering Forest Walker
cEntry = 7584;
break;
case 11886: //Owlbeasts
cEntry = 2927;
cEntry2 = 2928;
cEntry3 = 2929;
cEntry4 = 7808;
break;
case 11887: //Freyfeather Hippogryphs
cEntry = 5300;
cEntry2 = 5304;
cEntry3 = 5305;
cEntry4 = 5306;
break;
case 11888: //Sprite Dragon Sprite Darters
cEntry = 5276;
cEntry2 = 5278;
break;
case 11889: //Zapped Land Walker Land Walker Zapped Cliff Giant Cliff Giant
cEntry = 5357;
cEntry2 = 5358;
cEntry3 = 14640;
cEntry4 = 14604;
break;
}
if( uTarget && uTarget->GetTypeId()==TYPEID_UNIT && uTarget->isDead() &&
(uTarget->GetEntry()==cEntry || uTarget->GetEntry()==cEntry2 || uTarget->GetEntry()==cEntry3 || uTarget->GetEntry()==cEntry4) )
{
((Creature*)uTarget)->RemoveCorpse();
return false;
}
}
WorldPacket data(SMSG_CAST_FAILED, (4+2)); // prepare packet error message
data << uint32(_Item->GetEntry()); // itemId
data << uint8(SPELL_FAILED_BAD_TARGETS); // reason
player->GetSession()->SendPacket(&data); // send message: Invalid target
player->SendEquipError(EQUIP_ERR_NONE,_Item,NULL); // break spell
return true;
}
bool Spell_seed_of_corruption_proc(Unit* pCaster, std::list<Unit*> &unitList, SpellCastTargets const& targets, SpellEntry const *pSpell, uint32 effect_index)
{
if (effect_index != 0)
return true;
if (unitList.empty())
return true;
unitList.remove(targets.getUnitTarget());
return true;
}
bool ItemUse_item_tame_beast_rods(Player *player, Item* _Item, SpellCastTargets const& targets)
{
uint32 itemSpell = _Item->GetProto()->Spells[0].SpellId;
uint32 cEntry = 0;
if(itemSpell)
{
switch(itemSpell)
{
case 19548: cEntry = 1196; break; //Ice Claw Bear
case 19674: cEntry = 1126; break; //Large Crag Boar
case 19687: cEntry = 1201; break; //Snow Leopard
case 19688: cEntry = 2956; break; //Adult Plainstrider
case 19689: cEntry = 2959; break; //Prairie Stalker
case 19692: cEntry = 2970; break; //Swoop
case 19693: cEntry = 1998; break; //Webwood Lurker
case 19694: cEntry = 3099; break; //Dire Mottled Boar
case 19696: cEntry = 3107; break; //Surf Crawler
case 19697: cEntry = 3126; break; //Armored Scorpid
case 19699: cEntry = 2043; break; //Nightsaber Stalker
case 19700: cEntry = 1996; break; //Strigid Screecher
case 30646: cEntry = 17217; break; //Barbed Crawler
case 30653: cEntry = 17374; break; //Greater Timberstrider
case 30654: cEntry = 17203; break; //Nightstalker
case 30099: cEntry = 15650; break; //Crazed Dragonhawk
case 30102: cEntry = 15652; break; //Elder Springpaw
case 30105: cEntry = 16353; break; //Mistbat
}
if( targets.getUnitTarget() && targets.getUnitTarget()->GetTypeId()==TYPEID_UNIT &&
targets.getUnitTarget()->GetEntry() == cEntry )
return false;
}
WorldPacket data(SMSG_CAST_FAILED, (4+2)); // prepare packet error message
data << uint32(_Item->GetEntry()); // itemId
data << uint8(SPELL_FAILED_BAD_TARGETS); // reason
player->GetSession()->SendPacket(&data); // send message: Invalid target
player->SendEquipError(EQUIP_ERR_NONE,_Item,NULL); // break spell
return true;
}
bool Spell_intimidating_shout_5246(Unit* pCaster, std::list<Unit*> &unitList, SpellCastTargets const& targets, SpellEntry const *pSpell, uint32 effect_index)
{
if (effect_index == 0)
return true;
if (unitList.empty())
return true;
// remove current target from AOE Fear, AOE Speed aura our target gets stun effect provided by 1st effect
unitList.remove(targets.getUnitTarget());
return true;
}
bool ItemUse_item_RaeloraszSpear(Player* pPlayer, Item* pItem, const SpellCastTargets &pTargets)
{
if(pTargets.getUnitTarget()->GetEntry() == 26127)
{
// TODO : script de capture du dragon
}
else
{
Spell::SendCastResult(pPlayer, GetSpellStore()->LookupEntry(43157), 1, SPELL_FAILED_BAD_TARGETS);
return false;
}
return true;
}
void WorldSession::HandleCastSpellOpcode(WorldPacket& recvPacket)
{
CHECK_PACKET_SIZE(recvPacket,1+4+1);
uint32 spellId;
uint8 cast_count, unk_flags;
recvPacket >> cast_count;
recvPacket >> spellId;
recvPacket >> unk_flags; // flags (if 0x02 - some additional data are received)
sLog.outDebug("WORLD: got cast spell packet, spellId - %u, cast_count: %u, unk_flags %u, data length = %i",
spellId, cast_count, unk_flags, recvPacket.size());
SpellEntry const *spellInfo = sSpellStore.LookupEntry(spellId );
if(!spellInfo)
{
sLog.outError("WORLD: unknown spell id %u", spellId);
return;
}
// not have spell or spell passive and not casted by client
if ( !_player->HasSpell (spellId) || IsPassiveSpell(spellId) )
{
//cheater? kick? ban?
return;
}
// client provided targets
SpellCastTargets targets;
if(!targets.read(&recvPacket,_player))
return;
// auto-selection buff level base at target level (in spellInfo)
if(targets.getUnitTarget())
{
SpellEntry const *actualSpellInfo = spellmgr.SelectAuraRankForPlayerLevel(spellInfo,targets.getUnitTarget()->getLevel());
// if rank not found then function return NULL but in explicit cast case original spell can be casted and later failed with appropriate error message
if(actualSpellInfo)
spellInfo = actualSpellInfo;
}
Spell *spell = new Spell(_player, spellInfo, false);
spell->m_cast_count = cast_count; // set count of casts
spell->prepare(&targets);
}
void WorldSession::HandleCastSpellOpcode(WorldPacket& recvPacket)
{
uint32 spellId;
recvPacket >> spellId;
sLog.outDebug("WORLD: got cast spell packet, spellId - %u, data length = %i",
spellId, (uint32)recvPacket.size());
SpellEntry const *spellInfo = sSpellStore.LookupEntry(spellId );
if(!spellInfo)
{
sLog.outError("WORLD: unknown spell id %u", spellId);
return;
}
// not have spell or spell passive and not casted by client
if ( !_player->HasSpell (spellId) || IsPassiveSpell(spellId) )
{
//cheater? kick? ban?
return;
}
// client provided targets
SpellCastTargets targets;
recvPacket >> targets.ReadForCaster(_player);
// auto-selection buff level base at target level (in spellInfo)
if(targets.getUnitTarget())
{
SpellEntry const *actualSpellInfo = sSpellMgr.SelectAuraRankForPlayerLevel(spellInfo,targets.getUnitTarget()->getLevel());
// if rank not found then function return NULL but in explicit cast case original spell can be casted and later failed with appropriate error message
if(actualSpellInfo)
spellInfo = actualSpellInfo;
}
Spell *spell = new Spell(_player, spellInfo, false);
spell->prepare(&targets);
}
bool ItemUse_item_yehkinyas_bramble(Player* player, Item* _Item, SpellCastTargets const& targets)
{
if (player->GetQuestStatus(3520) == QUEST_STATUS_INCOMPLETE)
{
Unit* unit_target = targets.getUnitTarget();
if (unit_target &&
unit_target->GetTypeId() == TYPEID_UNIT &&
unit_target->isDead() &&
// cast only on corpse 5307 or 5308
(unit_target->GetEntry() == 5307 || unit_target->GetEntry() == 5308))
{
CAST_CRE(unit_target)->RemoveCorpse(); // remove corpse for cancelling second use
return false; // all ok
}
}
WorldPacket data(SMSG_CAST_FAILED, (4 + 2)); // prepare packet error message
data << uint32(10699); // itemId
data << uint8(SPELL_FAILED_BAD_TARGETS); // reason
player->GetSession()->SendPacket(&data); // send message: Bad target
player->SendEquipError(EQUIP_ERR_NONE, _Item, NULL); // break spell
return true;
}
void WorldSession::HandleUseItemOpcode(WorldPacket& recvPacket)
{
// TODO: add targets.read() check
Player* pUser = _player;
// ignore for remote control state
if(pUser->m_mover != pUser)
return;
uint8 bagIndex, slot;
uint8 unk_flags; // flags (if 0x02 - some additional data are received)
uint8 cast_count; // next cast if exists (single or not)
uint64 item_guid;
uint32 glyphIndex; // something to do with glyphs?
uint32 spellid; // casted spell id
recvPacket >> bagIndex >> slot >> cast_count >> spellid >> item_guid >> glyphIndex >> unk_flags;
// reject fake data
if (glyphIndex >= MAX_GLYPH_SLOT_INDEX)
{
pUser->SendEquipError(EQUIP_ERR_ITEM_NOT_FOUND, NULL, NULL );
return;
}
Item *pItem = pUser->GetItemByPos(bagIndex, slot);
if (!pItem)
{
pUser->SendEquipError(EQUIP_ERR_ITEM_NOT_FOUND, NULL, NULL );
return;
}
if (pItem->GetGUID() != item_guid)
{
pUser->SendEquipError(EQUIP_ERR_ITEM_NOT_FOUND, NULL, NULL );
return;
}
sLog.outDetail("WORLD: CMSG_USE_ITEM packet, bagIndex: %u, slot: %u, cast_count: %u, spellid: %u, Item: %u, glyphIndex: %u, unk_flags: %u, data length = %i", bagIndex, slot, cast_count, spellid, pItem->GetEntry(), glyphIndex, unk_flags, (uint32)recvPacket.size());
ItemPrototype const *proto = pItem->GetProto();
if (!proto)
{
pUser->SendEquipError(EQUIP_ERR_ITEM_NOT_FOUND, pItem, NULL );
return;
}
// some item classes can be used only in equipped state
if (proto->InventoryType != INVTYPE_NON_EQUIP && !pItem->IsEquipped())
{
pUser->SendEquipError(EQUIP_ERR_ITEM_NOT_FOUND, pItem, NULL );
return;
}
uint8 msg = pUser->CanUseItem(pItem);
if (msg != EQUIP_ERR_OK)
{
pUser->SendEquipError( msg, pItem, NULL );
return;
}
// only allow conjured consumable, bandage, poisons (all should have the 2^21 item flag set in DB)
if (proto->Class == ITEM_CLASS_CONSUMABLE &&
!(proto->Flags & ITEM_FLAGS_USEABLE_IN_ARENA) &&
pUser->InArena())
{
pUser->SendEquipError(EQUIP_ERR_NOT_DURING_ARENA_MATCH,pItem,NULL);
return;
}
if (pUser->isInCombat())
{
for(int i = 0; i < MAX_ITEM_PROTO_SPELLS; ++i)
{
if (SpellEntry const *spellInfo = sSpellStore.LookupEntry(proto->Spells[i].SpellId))
{
if (IsNonCombatSpell(spellInfo))
{
pUser->SendEquipError(EQUIP_ERR_NOT_IN_COMBAT,pItem,NULL);
return;
}
}
}
}
// check also BIND_WHEN_PICKED_UP and BIND_QUEST_ITEM for .additem or .additemset case by GM (not binded at adding to inventory)
if( pItem->GetProto()->Bonding == BIND_WHEN_USE || pItem->GetProto()->Bonding == BIND_WHEN_PICKED_UP || pItem->GetProto()->Bonding == BIND_QUEST_ITEM )
{
if (!pItem->IsSoulBound())
{
pItem->SetState(ITEM_CHANGED, pUser);
pItem->SetBinding( true );
}
}
SpellCastTargets targets;
recvPacket >> targets.ReadForCaster(pUser);
targets.Update(pUser);
if (!pItem->IsTargetValidForItemUse(targets.getUnitTarget()))
{
// free gray item after use fail
pUser->SendEquipError(EQUIP_ERR_NONE, pItem, NULL);
// send spell error
if (SpellEntry const* spellInfo = sSpellStore.LookupEntry(spellid))
{
// for implicit area/coord target spells
if (IsPointEffectTarget(Targets(spellInfo->EffectImplicitTargetA[EFFECT_INDEX_0])) ||
IsAreaEffectTarget(Targets(spellInfo->EffectImplicitTargetA[EFFECT_INDEX_0])))
Spell::SendCastResult(_player,spellInfo,cast_count,SPELL_FAILED_NO_VALID_TARGETS);
// for explicit target spells
else
Spell::SendCastResult(_player,spellInfo,cast_count,SPELL_FAILED_BAD_TARGETS);
}
return;
}
//Note: If script stop casting it must send appropriate data to client to prevent stuck item in gray state.
if(!Script->ItemUse(pUser,pItem,targets))
{
// no script or script not process request by self
pUser->CastItemUseSpell(pItem,targets,cast_count,glyphIndex);
}
}
void WorldSession::HandleUseItemOpcode(WorldPacket& recvPacket)
{
uint8 bagIndex, slot;
uint8 spell_count; // number of spells at item, not used
recvPacket >> bagIndex >> slot >> spell_count;
// TODO: add targets.read() check
Player* pUser = _player;
// ignore for remote control state
if (!pUser->IsSelfMover())
{
recvPacket.rpos(recvPacket.wpos()); // prevent spam at not read packet tail
return;
}
Item* pItem = pUser->GetItemByPos(bagIndex, slot);
if (!pItem)
{
recvPacket.rpos(recvPacket.wpos()); // prevent spam at not read packet tail
pUser->SendEquipError(EQUIP_ERR_ITEM_NOT_FOUND, nullptr, nullptr);
return;
}
DETAIL_LOG("WORLD: CMSG_USE_ITEM packet, bagIndex: %u, slot: %u, spell_count: %u , Item: %u, data length = %u", bagIndex, slot, spell_count, pItem->GetEntry(), (uint32)recvPacket.size());
ItemPrototype const* proto = pItem->GetProto();
if (!proto)
{
recvPacket.rpos(recvPacket.wpos()); // prevent spam at not read packet tail
pUser->SendEquipError(EQUIP_ERR_ITEM_NOT_FOUND, pItem, nullptr);
return;
}
// some item classes can be used only in equipped state
if (proto->InventoryType != INVTYPE_NON_EQUIP && !pItem->IsEquipped())
{
recvPacket.rpos(recvPacket.wpos()); // prevent spam at not read packet tail
pUser->SendEquipError(EQUIP_ERR_ITEM_NOT_FOUND, pItem, nullptr);
return;
}
InventoryResult msg = pUser->CanUseItem(pItem);
if (msg != EQUIP_ERR_OK)
{
recvPacket.rpos(recvPacket.wpos()); // prevent spam at not read packet tail
pUser->SendEquipError(msg, pItem, nullptr);
return;
}
// not allow use item from trade (cheat way only)
if (pItem->IsInTrade())
{
recvPacket.rpos(recvPacket.wpos()); // prevent spam at not read packet tail
pUser->SendEquipError(EQUIP_ERR_ITEM_NOT_FOUND, pItem, nullptr);
return;
}
if (pUser->isInCombat())
{
for (int i = 0; i < MAX_ITEM_PROTO_SPELLS; ++i)
{
if (SpellEntry const* spellInfo = sSpellStore.LookupEntry(proto->Spells[i].SpellId))
{
if (IsNonCombatSpell(spellInfo))
{
recvPacket.rpos(recvPacket.wpos()); // prevent spam at not read packet tail
pUser->SendEquipError(EQUIP_ERR_NOT_IN_COMBAT, pItem, nullptr);
return;
}
}
}
}
// check also BIND_WHEN_PICKED_UP and BIND_QUEST_ITEM for .additem or .additemset case by GM (not binded at adding to inventory)
if (pItem->GetProto()->Bonding == BIND_WHEN_USE || pItem->GetProto()->Bonding == BIND_WHEN_PICKED_UP || pItem->GetProto()->Bonding == BIND_QUEST_ITEM)
{
if (!pItem->IsSoulBound())
{
pItem->SetState(ITEM_CHANGED, pUser);
pItem->SetBinding(true);
}
}
SpellCastTargets targets;
recvPacket >> targets.ReadForCaster(pUser);
targets.Update(pUser);
if (!pItem->IsTargetValidForItemUse(targets.getUnitTarget()))
{
// free gray item after use fail
pUser->SendEquipError(EQUIP_ERR_NONE, pItem, nullptr);
// search spell for spell error
uint32 spellid = 0;
for (int i = 0; i < MAX_ITEM_PROTO_SPELLS; ++i)
{
if (proto->Spells[i].SpellTrigger == ITEM_SPELLTRIGGER_ON_USE || proto->Spells[i].SpellTrigger == ITEM_SPELLTRIGGER_ON_NO_DELAY_USE)
{
spellid = proto->Spells[i].SpellId;
break;
}
}
// send spell error
if (SpellEntry const* spellInfo = sSpellStore.LookupEntry(spellid))
Spell::SendCastResult(_player, spellInfo, SPELL_FAILED_BAD_TARGETS);
return;
}
// Note: If script stop casting it must send appropriate data to client to prevent stuck item in gray state.
if (!sScriptMgr.OnItemUse(pUser, pItem, targets))
{
// no script or script not process request by self
pUser->CastItemUseSpell(pItem, targets);
}
}
void WorldSession::HandleCastSpellOpcode(WorldPacket& recvPacket)
{
uint32 spellId;
recvPacket >> spellId;
// ignore for remote control state (for player case)
Unit* mover = _player->GetMover();
if (mover != _player && mover->GetTypeId() == TYPEID_PLAYER)
{
recvPacket.rpos(recvPacket.wpos()); // prevent spam at ignore packet
return;
}
DEBUG_LOG("WORLD: got cast spell packet, spellId - %u, data length = " SIZEFMTD,
spellId, recvPacket.size());
SpellEntry const* spellInfo = sSpellStore.LookupEntry(spellId);
if (!spellInfo)
{
sLog.outError("WORLD: unknown spell id %u", spellId);
recvPacket.rpos(recvPacket.wpos()); // prevent spam at ignore packet
return;
}
if (mover->GetTypeId() == TYPEID_PLAYER)
{
// not have spell in spellbook or spell passive and not casted by client
if (!((Player*)mover)->HasActiveSpell(spellId) || IsPassiveSpell(spellInfo))
{
sLog.outError("World: Player %u casts spell %u which he shouldn't have", mover->GetGUIDLow(), spellId);
// cheater? kick? ban?
recvPacket.rpos(recvPacket.wpos()); // prevent spam at ignore packet
return;
}
}
else
{
// not have spell in spellbook or spell passive and not casted by client
if (!((Creature*)mover)->HasSpell(spellId) || IsPassiveSpell(spellInfo))
{
// cheater? kick? ban?
recvPacket.rpos(recvPacket.wpos()); // prevent spam at ignore packet
return;
}
}
// client provided targets
SpellCastTargets targets;
recvPacket >> targets.ReadForCaster(_player);
// auto-selection buff level base at target level (in spellInfo)
if (Unit* target = targets.getUnitTarget())
{
// if rank not found then function return nullptr but in explicit cast case original spell can be casted and later failed with appropriate error message
if (SpellEntry const* actualSpellInfo = sSpellMgr.SelectAuraRankForLevel(spellInfo, _player, target))
spellInfo = actualSpellInfo;
}
Spell* spell = new Spell(_player, spellInfo, false);
spell->SpellStart(&targets);
}
void WorldSession::HandleUseItemOpcode(WorldPacket& recvPacket)
{
// TODO: add targets.read() check
Player* pUser = _player;
uint8 bagIndex, slot;
uint8 spell_count; // number of spells at item, not used
recvPacket >> bagIndex >> slot >> spell_count;
Item *pItem = pUser->GetItemByPos(bagIndex, slot);
if(!pItem)
{
pUser->SendEquipError(EQUIP_ERR_ITEM_NOT_FOUND, NULL, NULL );
return;
}
sLog.outDetail("WORLD: CMSG_USE_ITEM packet, bagIndex: %u, slot: %u, spell_count: %u , Item: %u, data length = %i", bagIndex, slot, spell_count, pItem->GetEntry(), (uint32)recvPacket.size());
ItemPrototype const *proto = pItem->GetProto();
if(!proto)
{
pUser->SendEquipError(EQUIP_ERR_ITEM_NOT_FOUND, pItem, NULL );
return;
}
// some item classes can be used only in equipped state
if(proto->InventoryType != INVTYPE_NON_EQUIP && !pItem->IsEquipped())
{
pUser->SendEquipError(EQUIP_ERR_ITEM_NOT_FOUND, pItem, NULL );
return;
}
uint8 msg = pUser->CanUseItem(pItem);
if( msg != EQUIP_ERR_OK )
{
pUser->SendEquipError( msg, pItem, NULL );
return;
}
if (pUser->isInCombat())
{
for(int i = 0; i < MAX_ITEM_PROTO_SPELLS; ++i)
{
if (SpellEntry const *spellInfo = sSpellStore.LookupEntry(proto->Spells[i].SpellId))
{
if (IsNonCombatSpell(spellInfo))
{
pUser->SendEquipError(EQUIP_ERR_NOT_IN_COMBAT,pItem,NULL);
return;
}
}
}
}
// check also BIND_WHEN_PICKED_UP and BIND_QUEST_ITEM for .additem or .additemset case by GM (not binded at adding to inventory)
if( pItem->GetProto()->Bonding == BIND_WHEN_USE || pItem->GetProto()->Bonding == BIND_WHEN_PICKED_UP || pItem->GetProto()->Bonding == BIND_QUEST_ITEM )
{
if (!pItem->IsSoulBound())
{
pItem->SetState(ITEM_CHANGED, pUser);
pItem->SetBinding( true );
}
}
SpellCastTargets targets;
recvPacket >> targets.ReadForCaster(pUser);
targets.Update(pUser);
if (!pItem->IsTargetValidForItemUse(targets.getUnitTarget()))
{
// free gray item after use fail
pUser->SendEquipError(EQUIP_ERR_NONE, pItem, NULL);
// search spell for spell error
uint32 spellid = 0;
for(int i = 0; i < MAX_ITEM_PROTO_SPELLS; ++i)
{
if( proto->Spells[i].SpellTrigger == ITEM_SPELLTRIGGER_ON_USE || proto->Spells[i].SpellTrigger == ITEM_SPELLTRIGGER_ON_NO_DELAY_USE)
{
spellid = proto->Spells[i].SpellId;
break;
}
}
// send spell error
if (SpellEntry const* spellInfo = sSpellStore.LookupEntry(spellid))
Spell::SendCastResult(_player,spellInfo,SPELL_FAILED_BAD_TARGETS);
return;
}
//Note: If script stop casting it must send appropriate data to client to prevent stuck item in gray state.
if(!Script->ItemUse(pUser,pItem,targets))
{
// no script or script not process request by self
// special learning case
if(pItem->GetProto()->Spells[0].SpellId==SPELL_ID_GENERIC_LEARN)
{
uint32 learning_spell_id = pItem->GetProto()->Spells[1].SpellId;
SpellEntry const *spellInfo = sSpellStore.LookupEntry(SPELL_ID_GENERIC_LEARN);
if(!spellInfo)
{
sLog.outError("Item (Entry: %u) in have wrong spell id %u, ignoring ",proto->ItemId, SPELL_ID_GENERIC_LEARN);
pUser->SendEquipError(EQUIP_ERR_NONE,pItem,NULL);
return;
}
Spell *spell = new Spell(pUser, spellInfo, false);
spell->m_CastItem = pItem;
spell->m_currentBasePoints[0] = learning_spell_id;
spell->prepare(&targets);
return;
}
// use triggered flag only for items with many spell casts and for not first cast
int count = 0;
for(int i = 0; i < MAX_ITEM_PROTO_SPELLS; ++i)
{
_Spell const& spellData = pItem->GetProto()->Spells[i];
// no spell
if(!spellData.SpellId)
continue;
// wrong triggering type
if( spellData.SpellTrigger != ITEM_SPELLTRIGGER_ON_USE && spellData.SpellTrigger != ITEM_SPELLTRIGGER_ON_NO_DELAY_USE)
continue;
SpellEntry const *spellInfo = sSpellStore.LookupEntry(spellData.SpellId);
if(!spellInfo)
{
sLog.outError("Item (Entry: %u) in have wrong spell id %u, ignoring ",proto->ItemId, spellData.SpellId);
continue;
}
Spell *spell = new Spell(pUser, spellInfo, (count > 0));
spell->m_CastItem = pItem;
spell->prepare(&targets);
++count;
}
}
}
void WorldSession::HandleCastSpellOpcode(WorldPacket& recvPacket)
{
uint32 spellId;
uint8 cast_count, unk_flags;
recvPacket >> cast_count;
recvPacket >> spellId;
recvPacket >> unk_flags; // flags (if 0x02 - some additional data are received)
// ignore for remote control state (for player case)
Unit* mover = _player->m_mover;
if(mover != _player && mover->GetTypeId()==TYPEID_PLAYER)
return;
sLog.outDebug("WORLD: got cast spell packet, spellId - %u, cast_count: %u, unk_flags %u, data length = %i",
spellId, cast_count, unk_flags, (uint32)recvPacket.size());
SpellEntry const *spellInfo = sSpellStore.LookupEntry(spellId );
if(!spellInfo)
{
sLog.outError("WORLD: unknown spell id %u", spellId);
return;
}
if(mover->GetTypeId()==TYPEID_PLAYER)
{
// not have spell in spellbook or spell passive and not casted by client
if (!((Player*)mover)->HasActiveSpell (spellId) || IsPassiveSpell(spellId) )
{
//cheater? kick? ban?
return;
}
}
else
{
// not have spell in spellbook or spell passive and not casted by client
if (!((Creature*)mover)->HasSpell(spellId) || IsPassiveSpell(spellId) )
{
//cheater? kick? ban?
return;
}
}
// Client is resending autoshot cast opcode when other spell is casted during shoot rotation
// Skip it to prevent "interrupt" message
if (IsAutoRepeatRangedSpell(spellInfo) && _player->GetCurrentSpell(CURRENT_AUTOREPEAT_SPELL)
&& _player->GetCurrentSpell(CURRENT_AUTOREPEAT_SPELL)->m_spellInfo == spellInfo)
return;
// can't use our own spells when we're in possession of another unit,
if(_player->isPossessing())
return;
// client provided targets
SpellCastTargets targets;
if(!targets.read(&recvPacket,mover))
return;
// auto-selection buff level base at target level (in spellInfo)
if(targets.getUnitTarget())
{
SpellEntry const *actualSpellInfo = spellmgr.SelectAuraRankForPlayerLevel(spellInfo,targets.getUnitTarget()->getLevel());
// if rank not found then function return NULL but in explicit cast case original spell can be casted and later failed with appropriate error message
if(actualSpellInfo)
spellInfo = actualSpellInfo;
}
Spell *spell = new Spell(mover, spellInfo, false);
spell->m_cast_count = cast_count; // set count of casts
spell->prepare(&targets);
}