npchandler.cpp

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/*
 * The ManaPlus Client
 * Copyright (C) 2004-2009 The Mana World Development Team
 * Copyright (C) 2009-2010 The Mana Developers
 * Copyright (C) 2011-2019 The ManaPlus Developers
 * Copyright (C) 2019-2021 Andrei Karas
 *
 * This file is part of The ManaPlus Client.
 *
 * 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
 * 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 "net/eathena/npchandler.h"
 
#include "being/localplayer.h"
 
#include "const/net/inventory.h"
 
#include "gui/windows/npcdialog.h"
 
#include "gui/widgets/createwidget.h"
 
#include "net/messagein.h"
 
#include "net/ea/npcrecv.h"
 
#include "net/eathena/messageout.h"
#include "net/eathena/npcrecv.h"
 
#include "net/eathena/protocolout.h"
 
#include "utils/foreach.h"
 
#include "resources/item/shopitem.h"
 
#include "debug.h"
 
extern int packetVersion;
extern int packetVersionMain;
extern int packetVersionRe;
extern bool packets_zero;
extern int itemIdLen;
 
namespace EAthena
{
 
NpcHandler::NpcHandler() :
 Ea::NpcHandler()
{
 npcHandler = this;
}
 
NpcHandler::~NpcHandler()
{
 npcHandler = nullptr;
}
 
void NpcHandler::talk(const Being *const being) const
{
 if (being == nullptr)
 return;
 createOutPacket(CMSG_NPC_TALK);
 outMsg.writeBeingId(being->getId(), "npc id");
 outMsg.writeInt8(0, "unused");
 EAthena::NpcRecv::mNpcTypeId = being->getSubType();
}
 
void NpcHandler::nextDialog(const BeingId npcId) const
{
 createOutPacket(CMSG_NPC_NEXT_REQUEST);
 outMsg.writeBeingId(npcId, "npc id");
}
 
void NpcHandler::closeDialog(const BeingId npcId)
{
 createOutPacket(CMSG_NPC_CLOSE);
 outMsg.writeBeingId(npcId, "npc id");
 
 const NpcDialogs::iterator it = NpcDialog::mNpcDialogs.find(npcId);
 if (it != NpcDialog::mNpcDialogs.end())
 {
 NpcDialog *const dialog = (*it).second;
 if (dialog != nullptr)
 dialog->close();
 if (dialog == Ea::NpcRecv::mDialog)
 Ea::NpcRecv::mDialog = nullptr;
 NpcDialog::mNpcDialogs.erase(it);
 }
}
 
void NpcHandler::listInput(const BeingId npcId,
 const unsigned char value) const
{
 createOutPacket(CMSG_NPC_LIST_CHOICE);
 outMsg.writeBeingId(npcId, "npc id");
 outMsg.writeInt8(value, "value");
}
 
void NpcHandler::integerInput(const BeingId npcId,
 const int value) const
{
 createOutPacket(CMSG_NPC_INT_RESPONSE);
 outMsg.writeBeingId(npcId, "npc id");
 outMsg.writeInt32(value, "value");
}
 
void NpcHandler::stringInput(const BeingId npcId,
 const std::string &value) const
{
 createOutPacket(CMSG_NPC_STR_RESPONSE);
 if (packetVersion >= 20151029)
 {
 outMsg.writeInt16(CAST_S16(value.length() + 8), "len");
 outMsg.writeBeingId(npcId, "npc id");
 outMsg.writeString(value, CAST_S32(value.length()), "value");
 }
 else
 {
 outMsg.writeInt16(CAST_S16(value.length() + 9), "len");
 outMsg.writeBeingId(npcId, "npc id");
 outMsg.writeString(value, CAST_S32(value.length()), "value");
 outMsg.writeInt8(0, "null byte");
 }
}
 
void NpcHandler::buy(const Being *const being) const
{
 if (being == nullptr)
 return;
 createOutPacket(CMSG_NPC_BUY_SELL_REQUEST);
 outMsg.writeBeingId(being->getId(), "npc id");
 outMsg.writeInt8(0, "action");
 EAthena::NpcRecv::mNpcTypeId = being->getSubType();
}
 
void NpcHandler::buy(const BeingId beingId) const
{
 createOutPacket(CMSG_NPC_BUY_SELL_REQUEST);
 outMsg.writeBeingId(beingId, "npc id");
 outMsg.writeInt8(0, "action");
 EAthena::NpcRecv::mNpcTypeId = BeingTypeId_zero;
}
 
void NpcHandler::sell(const BeingId beingId) const
{
 createOutPacket(CMSG_NPC_BUY_SELL_REQUEST);
 outMsg.writeBeingId(beingId, "npc id");
 outMsg.writeInt8(1, "action");
}
 
void NpcHandler::buyItem(const BeingId beingId A_UNUSED,
 const int itemId,
 const ItemColor color A_UNUSED,
 const int amount) const
{
 createOutPacket(CMSG_NPC_BUY_REQUEST);
 outMsg.writeInt16(8, "len");
 outMsg.writeInt16(CAST_S16(amount), "amount");
 outMsg.writeItemId(itemId, "item id");
}
 
void NpcHandler::buyItems(STD_VECTOR<ShopItem*> &items) const
{
 int cnt = 0;
 const int pairSize = 2 + itemIdLen;
 
 FOR_EACH (STD_VECTOR<ShopItem*>::iterator, it, items)
 {
 ShopItem *const item = *it;
 const int usedQuantity = item->getUsedQuantity();
 const ItemTypeT type = item->getType();
 if (usedQuantity == 0)
 continue;
 if (type == ItemType::Weapon ||
 type == ItemType::Armor ||
 type == ItemType::PetEgg ||
 type == ItemType::PetArmor)
 {
 cnt += item->getUsedQuantity();
 }
 else
 {
 cnt ++;
 }
 }
 
 if (cnt > 100)
 return;
 
 createOutPacket(CMSG_NPC_BUY_REQUEST);
 outMsg.writeInt16(CAST_S16(4 + pairSize * cnt), "len");
 FOR_EACH (STD_VECTOR<ShopItem*>::iterator, it, items)
 {
 ShopItem *const item = *it;
 const int usedQuantity = item->getUsedQuantity();
 if (usedQuantity == 0)
 continue;
 item->increaseUsedQuantity(-usedQuantity);
 item->update();
 const ItemTypeT type = item->getType();
 if (type == ItemType::Weapon ||
 type == ItemType::Armor ||
 type == ItemType::PetEgg ||
 type == ItemType::PetArmor)
 {
 for (int f = 0; f < usedQuantity; f ++)
 {
 outMsg.writeInt16(CAST_S16(1), "amount");
 outMsg.writeItemId(item->getId(),
 "item id");
 }
 }
 else
 {
 outMsg.writeInt16(CAST_S16(usedQuantity), "amount");
 outMsg.writeItemId(item->getId(), "item id");
 }
 }
}
 
void NpcHandler::sellItem(const BeingId beingId A_UNUSED,
 const int itemId, const int amount) const
{
 createOutPacket(CMSG_NPC_SELL_REQUEST);
 outMsg.writeInt16(8, "len");
 outMsg.writeInt16(CAST_S16(itemId + INVENTORY_OFFSET),
 "item index");
 outMsg.writeInt16(CAST_S16(amount), "amount");
}
 
void NpcHandler::sellItems(STD_VECTOR<ShopItem*> &items) const
{
 const int pairSize = 4;
 int cnt = 0;
 
 FOR_EACH (STD_VECTOR<ShopItem*>::iterator, it, items)
 {
 ShopItem *const item = *it;
 const int usedQuantity = item->getUsedQuantity();
 if (usedQuantity == 0)
 continue;
 cnt ++;
 }
 
 createOutPacket(CMSG_NPC_SELL_REQUEST);
 outMsg.writeInt16(CAST_S16(4 + pairSize * cnt), "len");
 FOR_EACH (STD_VECTOR<ShopItem*>::iterator, it, items)
 {
 ShopItem *const item = *it;
 const int usedQuantity = item->getUsedQuantity();
 if (usedQuantity == 0)
 continue;
 item->increaseUsedQuantity(-usedQuantity);
 item->update();
 outMsg.writeInt16(CAST_S16(
 item->getCurrentInvIndex() + INVENTORY_OFFSET),
 "item index");
 outMsg.writeInt16(CAST_S16(usedQuantity), "amount");
 }
}
 
void NpcHandler::completeProgressBar() const
{
 createOutPacket(CMSG_NPC_COMPLETE_PROGRESS_BAR);
}
 
void NpcHandler::produceMix(const int nameId,
 const int materialId1,
 const int materialId2,
 const int materialId3) const
{
 createOutPacket(CMSG_NPC_PRODUCE_MIX);
 outMsg.writeItemId(nameId, "item id");
 outMsg.writeItemId(materialId1, "material 1");
 outMsg.writeItemId(materialId2, "material 2");
 outMsg.writeItemId(materialId3, "material 3");
}
 
void NpcHandler::cooking(const CookingTypeT type,
 const int nameId) const
{
 createOutPacket(CMSG_NPC_COOKING);
 outMsg.writeInt16(CAST_S16(type), "type");
 outMsg.writeItemId(nameId, "item id");
}
 
void NpcHandler::repair(const int index) const
{
 createOutPacket(CMSG_NPC_REPAIR);
 outMsg.writeInt16(CAST_S16(index), "index");
 // unused fields.
 outMsg.writeItemId(0, "item id");
 outMsg.writeInt8(0, "refine");
 for (int f = 0; f < maxCards; f ++)
 outMsg.writeItemId(0, "card");
}
 
void NpcHandler::refine(const int index) const
{
 createOutPacket(CMSG_NPC_REFINE);
 outMsg.writeInt32(index, "index");
}
 
void NpcHandler::identify(const int index) const
{
 createOutPacket(CMSG_NPC_IDENTIFY);
 outMsg.writeInt16(CAST_S16(index), "index");
}
 
void NpcHandler::selectArrow(const int nameId) const
{
 createOutPacket(CMSG_NPC_SELECT_ARROW);
 outMsg.writeItemId(nameId, "item id");
}
 
void NpcHandler::selectAutoSpell(const int skillId) const
{
 createOutPacket(CMSG_NPC_SELECT_AUTO_SPELL);
 outMsg.writeInt32(CAST_S16(skillId), "skill id");
}
 
BeingId NpcHandler::getNpc(Net::MessageIn &msg,
 const NpcActionT action)
{
 const BeingId npcId = msg.readBeingId("npc id");
 
 const NpcDialogs::const_iterator diag = NpcDialog::mNpcDialogs.find(npcId);
 
 if (diag == NpcDialog::mNpcDialogs.end())
 {
 Ea::NpcRecv::mDialog = nullptr;
 // Empty dialogs don't help
 if (action == NpcAction::Close)
 {
 closeDialog(npcId);
 return npcId;
 }
 else if (action == NpcAction::Next)
 {
 nextDialog(npcId);
 return npcId;
 }
 else
 {
 CREATEWIDGETV(Ea::NpcRecv::mDialog, NpcDialog, npcId);
 Ea::NpcRecv::mDialog->saveCamera();
 if (localPlayer != nullptr)
 localPlayer->stopWalking(false);
 NpcDialog::mNpcDialogs[npcId] = Ea::NpcRecv::mDialog;
 }
 }
 else
 {
 NpcDialog *const dialog = diag->second;
 if (Ea::NpcRecv::mDialog != nullptr && Ea::NpcRecv::mDialog != dialog)
 Ea::NpcRecv::mDialog->restoreCamera();
 Ea::NpcRecv::mDialog = dialog;
 if (Ea::NpcRecv::mDialog != nullptr)
 Ea::NpcRecv::mDialog->saveCamera();
 }
 return npcId;
}
 
void NpcHandler::requestAirship(const std::string &mapName,
 const int itemId) const
{
 if (packetVersionRe < 20180321 &&
 packetVersionMain < 20180620 &&
 packets_zero == false)
 {
 return;
 }
 createOutPacket(CMSG_PRIVATE_AIRSHIP_REQUEST);
 outMsg.writeString(mapName, 16, "map name");
 outMsg.writeItemId(itemId, "item");
}
 
} // namespace EAthena