Код:
void WorldSession::SendUpdateTrade(bool trader_state /*= true*/)
{
TradeData* view_trade = trader_state ? _player->GetTradeData()->GetTraderData() : _player->GetTradeData();
WorldPacket data(SMSG_TRADE_STATUS_EXTENDED, (100)); // guess size
data << uint32(0); // added in 2.4.0, this value must be equal to value from TRADE_STATUS_OPEN_WINDOW status packet (different value for different players to block multiple trades?)
data << uint32(0); // unk 2
data << uint64(view_trade->GetMoney()); // trader gold
data << uint32(view_trade->GetSpell()); // spell casted on lowest slot item
data << uint32(TRADE_SLOT_COUNT); // trade slots count/number?, = next field in most cases
data << uint32(0); // unk 5
data << uint8(trader_state ? 1 : 0); // send trader or own trade windows state (last need for proper show spell apply to non-trade slot)
data << uint32(TRADE_SLOT_COUNT); // trade slots count/number?, = prev field in most cases
uint8 itemCount = 0;
for (uint8 i = 0; i < TRADE_SLOT_COUNT; ++i)
if (Item* item = view_trade->GetItem(TradeSlots(i)))
++itemCount;
data.WriteBits(itemCount, 22);
uint8 creatorGuidMask[] = { 7, 1, 4, 6, 2, 3, 5, 0 };
uint8 giftCreatorGuidMask[] = { 7, 1, 3, 6, 4, 2, 0, 5 };
uint8 creatorGuidBytes[] = { 1, 6, 2, 7, 4, 3, 0, 5 };
uint8 giftCreatorGuidBytes[] = { 6, 1, 7, 4, 0, 5, 2, 3 };
for (uint8 i = 0; i < TRADE_SLOT_COUNT; ++i)
{
if (Item* item = view_trade->GetItem(TradeSlots(i)))
{
ObjectGuid creatorGuid = item->GetGuidValue(ITEM_FIELD_CREATOR);
ObjectGuid giftCreatorGuid = item->GetGuidValue(ITEM_FIELD_GIFTCREATOR);
data.WriteGuidMask(giftCreatorGuid, giftCreatorGuidMask, 2, 0);
data.WriteBit(!item->HasFlag(ITEM_FIELD_FLAGS, ITEM_DYNFLAG_WRAPPED));
data.WriteGuidMask(giftCreatorGuid, giftCreatorGuidMask, 1, 2);
if (!item->HasFlag(ITEM_FIELD_FLAGS, ITEM_DYNFLAG_WRAPPED))
{
data.WriteGuidMask(creatorGuid, creatorGuidMask, 7, 0);
data.WriteBit(item->GetProto()->LockID && !item->HasFlag(ITEM_FIELD_FLAGS, ITEM_DYNFLAG_UNLOCKED));
data.WriteGuidMask(creatorGuid, creatorGuidMask, 1, 7);
}
data.WriteGuidMask(giftCreatorGuid, giftCreatorGuidMask, 5, 3);
}
}
for (uint8 i = 0; i < TRADE_SLOT_COUNT; ++i)
{
if (Item* item = view_trade->GetItem(TradeSlots(i)))
{
ObjectGuid creatorGuid = item->GetGuidValue(ITEM_FIELD_CREATOR);
ObjectGuid giftCreatorGuid = item->GetGuidValue(ITEM_FIELD_GIFTCREATOR);
if (!item->HasFlag(ITEM_FIELD_FLAGS, ITEM_DYNFLAG_WRAPPED))
{
data.WriteGuidBytes(creatorGuid, creatorGuidBytes, 1, 0);
data << uint32(item->GetEnchantmentId(PERM_ENCHANTMENT_SLOT));
for (uint32 enchant_slot = SOCK_ENCHANTMENT_SLOT; enchant_slot < SOCK_ENCHANTMENT_SLOT + MAX_GEM_SOCKETS; ++enchant_slot)
data << uint32(item->GetEnchantmentId(EnchantmentSlot(enchant_slot)));
data << uint32(item->GetUInt32Value(ITEM_FIELD_MAXDURABILITY));
data.WriteGuidBytes(creatorGuid, creatorGuidBytes, 4, 1);
data << uint32(0); // reforge Id
data << uint32(item->GetUInt32Value(ITEM_FIELD_DURABILITY));
data << uint32(item->GetItemRandomPropertyId());
data.WriteGuidBytes(creatorGuid, creatorGuidBytes, 1, 5);
data << uint32(0); // UnkInt32_4
data.WriteGuidBytes(creatorGuid, creatorGuidBytes, 1, 6);
data << uint32(item->GetSpellCharges()); // charges
data << uint32(item->GetItemSuffixFactor());
data.WriteGuidBytes(creatorGuid, creatorGuidBytes, 1, 7);
}
data.WriteGuidBytes(giftCreatorGuid, giftCreatorGuidBytes, 4, 0);
data << uint32(item->GetProto()->ItemId); // entry
data.WriteGuidBytes(giftCreatorGuid, giftCreatorGuidBytes, 1, 4);
data << uint32(item->GetCount()); // stack count
data.WriteGuidBytes(giftCreatorGuid, giftCreatorGuidBytes, 1, 5);
data << uint8(i);
data.WriteGuidBytes(giftCreatorGuid, giftCreatorGuidBytes, 2, 6);
}
}
SendPacket(&data);
}