Core/PacketIO: Create BankHandler & update bank opcodes to new packet class (#24695)

* Core/PacketIO: Create BankHandler & update bank opcodes to new packet class

(cherry picked from commit 478e86c074cc9c6a19f6c83d2a265eb1ccd705fc)

* fix nopch build

* Update SMSG_BUY_BANK_SLOT_RESULT

* fix naming

* fix copypaste error

Co-authored-by: Luzifix <luzifix19@gmail.com>

1 files changed, 189 insertions, 0 deletions

diff --git a/src/server/game/Handlers/BankHandler.cpp b/src/server/game/Handlers/BankHandler.cpp
new file mode 100644
index 00000000000..f1710f8131a
--- /dev/null
+++ b/src/server/game/Handlers/BankHandler.cpp
@@ -0,0 +1,189 @@
+/*
+ * This file is part of the TrinityCore Project. See AUTHORS file for Copyright information
+ *
+ * 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 <http://www.gnu.org/licenses/>.
+ */
+
+#include "BankPackets.h"
+#include "Item.h"
+#include "DBCStores.h"
+#include "Log.h"
+#include "NPCPackets.h"
+#include "Opcodes.h"
+#include "Player.h"
+#include "WorldPacket.h"
+#include "WorldSession.h"
+
+bool WorldSession::CanUseBank(ObjectGuid bankerGUID) const
+{
+    // bankerGUID parameter is optional, set to 0 by default.
+    if (!bankerGUID)
+        bankerGUID = m_currentBankerGUID;
+
+    bool isUsingBankCommand = (bankerGUID == GetPlayer()->GetGUID() && bankerGUID == m_currentBankerGUID);
+
+    if (!isUsingBankCommand)
+    {
+        Creature* creature = GetPlayer()->GetNPCIfCanInteractWith(bankerGUID, UNIT_NPC_FLAG_BANKER);
+        if (!creature)
+            return false;
+    }
+
+    return true;
+}
+
+void WorldSession::HandleBankerActivateOpcode(WorldPackets::NPC::Hello& packet)
+{
+    Creature* unit = GetPlayer()->GetNPCIfCanInteractWith(packet.Unit, UNIT_NPC_FLAG_BANKER);
+    if (!unit)
+    {
+        TC_LOG_DEBUG("network", "WORLD: HandleBankerActivateOpcode - %s not found or you can not interact with him.", packet.Unit.ToString().c_str());
+        return;
+    }
+
+    // remove fake death
+    if (GetPlayer()->HasUnitState(UNIT_STATE_DIED))
+        GetPlayer()->RemoveAurasByType(SPELL_AURA_FEIGN_DEATH);
+
+    SendShowBank(packet.Unit);
+}
+
+void WorldSession::HandleAutoBankItemOpcode(WorldPackets::Bank::AutoBankItem& packet)
+{
+    TC_LOG_DEBUG("network", "STORAGE: receive bag = %u, slot = %u", packet.Bag, packet.Slot);
+
+    if (!CanUseBank())
+    {
+        TC_LOG_DEBUG("network", "WORLD: HandleAutoBankItemOpcode - Unit (%s) not found or you can't interact with him.", m_currentBankerGUID.ToString().c_str());
+        return;
+    }
+
+    Item* item = _player->GetItemByPos(packet.Bag, packet.Slot);
+    if (!item)
+        return;
+
+    ItemPosCountVec dest;
+    InventoryResult msg = _player->CanBankItem(NULL_BAG, NULL_SLOT, dest, item, false);
+    if (msg != EQUIP_ERR_OK)
+    {
+        _player->SendEquipError(msg, item, nullptr);
+        return;
+    }
+
+    if (dest.size() == 1 && dest[0].pos == item->GetPos())
+    {
+        _player->SendEquipError(EQUIP_ERR_NONE, item, nullptr);
+        return;
+    }
+
+    _player->RemoveItem(packet.Bag, packet.Slot, true);
+    _player->ItemRemovedQuestCheck(item->GetEntry(), item->GetCount());
+    _player->BankItem(dest, item, true);
+}
+
+void WorldSession::HandleAutoStoreBankItemOpcode(WorldPackets::Bank::AutoStoreBankItem& packet)
+{
+    TC_LOG_DEBUG("network", "STORAGE: receive bag = %u, slot = %u", packet.Bag, packet.Slot);
+
+    if (!CanUseBank())
+    {
+        TC_LOG_DEBUG("network", "WORLD: HandleAutoStoreBankItemOpcode - Unit (%s) not found or you can't interact with him.", m_currentBankerGUID.ToString().c_str());
+        return;
+    }
+
+    Item* item = _player->GetItemByPos(packet.Bag, packet.Slot);
+    if (!item)
+        return;
+
+    if (_player->IsBankPos(packet.Bag, packet.Slot))                    // moving from bank to inventory
+    {
+        ItemPosCountVec dest;
+        InventoryResult msg = _player->CanStoreItem(NULL_BAG, NULL_SLOT, dest, item, false);
+        if (msg != EQUIP_ERR_OK)
+        {
+            _player->SendEquipError(msg, item, nullptr);
+            return;
+        }
+
+        _player->RemoveItem(packet.Bag, packet.Slot, true);
+        if (Item const* storedItem = _player->StoreItem(dest, item, true))
+            _player->ItemAddedQuestCheck(storedItem->GetEntry(), storedItem->GetCount());
+    }
+    else                                                    // moving from inventory to bank
+    {
+        ItemPosCountVec dest;
+        InventoryResult msg = _player->CanBankItem(NULL_BAG, NULL_SLOT, dest, item, false);
+        if (msg != EQUIP_ERR_OK)
+        {
+            _player->SendEquipError(msg, item, nullptr);
+            return;
+        }
+
+        _player->RemoveItem(packet.Bag, packet.Slot, true);
+        _player->BankItem(dest, item, true);
+    }
+}
+
+void WorldSession::HandleBuyBankSlotOpcode(WorldPackets::Bank::BuyBankSlot& buyBankSlot)
+{
+    WorldPackets::Bank::BuyBankSlotResult packet;
+    if (!CanUseBank(buyBankSlot.Banker))
+    {
+        packet.Result = ERR_BANKSLOT_NOTBANKER;
+        SendPacket(packet.Write());
+        TC_LOG_DEBUG("network", "WORLD: HandleBuyBankSlotOpcode - %s not found or you can't interact with him.", buyBankSlot.Banker.ToString().c_str());
+        return;
+    }
+
+    uint32 slot = _player->GetBankBagSlotCount();
+
+    // next slot
+    ++slot;
+
+    TC_LOG_INFO("network", "PLAYER: Buy bank bag slot, slot number = %u", slot);
+
+    BankBagSlotPricesEntry const* slotEntry = sBankBagSlotPricesStore.LookupEntry(slot);
+
+    if (!slotEntry)
+    {
+        packet.Result = ERR_BANKSLOT_FAILED_TOO_MANY;
+        SendPacket(packet.Write());
+        return;
+    }
+
+    uint32 price = slotEntry->price;
+
+    if (!_player->HasEnoughMoney(price))
+    {
+        packet.Result = ERR_BANKSLOT_INSUFFICIENT_FUNDS;
+        SendPacket(packet.Write());
+        return;
+    }
+
+    _player->SetBankBagSlotCount(slot);
+    _player->ModifyMoney(-int32(price));
+
+    packet.Result = ERR_BANKSLOT_OK;
+    SendPacket(packet.Write());
+
+    _player->UpdateAchievementCriteria(ACHIEVEMENT_CRITERIA_TYPE_BUY_BANK_SLOT);
+}
+
+void WorldSession::SendShowBank(ObjectGuid guid)
+{
+    m_currentBankerGUID = guid;
+    WorldPackets::Bank::ShowBank packet;
+    packet.Banker = guid;
+    SendPacket(packet.Write());
+}