/**
 * The Forgotten Server - a free and open-source MMORPG server emulator
 * Copyright (C) 2019  Mark Samman <mark.samman@gmail.com>
 *
 * 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, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

#include "otpch.h"

#include "protocolgame.h"

#include "outputmessage.h"

#include "player.h"

#include "configmanager.h"
#include "actions.h"
#include "game.h"
#include "iologindata.h"
#include "iomarket.h"
#include "ban.h"
#include "scheduler.h"

#include <fmt/format.h>

extern ConfigManager g_config;
extern Actions actions;
extern CreatureEvents* g_creatureEvents;
extern Chat* g_chat;

namespace {

using WaitList = std::deque<std::pair<int64_t, uint32_t>>; // (timeout, player guid)

WaitList priorityWaitList, waitList;

std::tuple<WaitList&, WaitList::iterator, WaitList::size_type> findClient(const Player& player) {
    const auto fn = [&](const WaitList::value_type& it) { return it.second == player.getGUID(); };

    auto it = std::find_if(priorityWaitList.begin(), priorityWaitList.end(), fn);
    if (it != priorityWaitList.end()) {
        return std::make_tuple(std::ref(priorityWaitList), it, std::distance(it, priorityWaitList.end()) + 1);
    }

    it = std::find_if(waitList.begin(), waitList.end(), fn);
    if (it != waitList.end()) {
        return std::make_tuple(std::ref(waitList), it, priorityWaitList.size() + std::distance(it, waitList.end()) + 1);
    }

    return std::make_tuple(std::ref(waitList), waitList.end(), priorityWaitList.size() + waitList.size());
}

uint8_t getWaitTime(std::size_t slot)
{
    if (slot < 5) {
        return 5;
    } else if (slot < 10) {
        return 10;
    } else if (slot < 20) {
        return 20;
    } else if (slot < 50) {
        return 60;
    } else {
        return 120;
    }
}

int64_t getTimeout(std::size_t slot)
{
    // timeout is set to 15 seconds longer than expected retry attempt
    return getWaitTime(slot) + 15;
}

void cleanupList(WaitList& list)
{
    int64_t time = OTSYS_TIME();

    auto it = list.begin();
    while (it != list.end()) {
        if (it->first <= time) {
            it = list.erase(it);
        } else {
            ++it;
        }
    }
}

std::size_t clientLogin(const Player& player)
{
    // Currentslot = position in wait list, 0 for direct access
    if (player.hasFlag(PlayerFlag_CanAlwaysLogin) || player.getAccountType() >= ACCOUNT_TYPE_GAMEMASTER) {
        return 0;
    }

    cleanupList(priorityWaitList);
    cleanupList(waitList);

    uint32_t maxPlayers = static_cast<uint32_t>(g_config.getNumber(ConfigManager::MAX_PLAYERS));
    if (maxPlayers == 0 || (priorityWaitList.empty() && waitList.empty() && g_game.getPlayersOnline() < maxPlayers)) {
        return 0;
    }

    auto result = findClient(player);
    if (std::get<1>(result) != std::get<0>(result).end()) {
        auto currentSlot = std::get<2>(result);
        // If server has capacity for this client, let him in even though his current slot might be higher than 0.
        if ((g_game.getPlayersOnline() + currentSlot) <= maxPlayers) {
            std::get<0>(result).erase(std::get<1>(result));
            return 0;
        }

        //let them wait a bit longer
        std::get<1>(result)->second = OTSYS_TIME() + (getTimeout(currentSlot) * 1000);
        return currentSlot;
    }

    auto currentSlot = priorityWaitList.size();
    if (player.isPremium()) {
        priorityWaitList.emplace_back(OTSYS_TIME() + (getTimeout(++currentSlot) * 1000), player.getGUID());
    } else {
        currentSlot += waitList.size();
        waitList.emplace_back(OTSYS_TIME() + (getTimeout(++currentSlot) * 1000), player.getGUID());
    }
    return currentSlot;
}

}

void ProtocolGame::release()
{
    //dispatcher thread
    if (player && player->client == shared_from_this()) {
        player->client.reset();
        player->decrementReferenceCounter();
        player = nullptr;
    }

    OutputMessagePool::getInstance().removeProtocolFromAutosend(shared_from_this());
    Protocol::release();
}

void ProtocolGame::login(const std::string& name, uint32_t accountId, OperatingSystem_t operatingSystem)
{
    //dispatcher thread
    Player* foundPlayer = g_game.getPlayerByName(name);
    if (!foundPlayer || g_config.getBoolean(ConfigManager::ALLOW_CLONES)) {
        player = new Player(getThis());
        player->setName(name);

        player->incrementReferenceCounter();
        player->setID();

        if (!IOLoginData::preloadPlayer(player, name)) {
            disconnectClient("Your character could not be loaded.");
            return;
        }

        if (IOBan::isPlayerNamelocked(player->getGUID())) {
            disconnectClient("Your character has been namelocked.");
            return;
        }

        if (g_game.getGameState() == GAME_STATE_CLOSING && !player->hasFlag(PlayerFlag_CanAlwaysLogin)) {
            disconnectClient("The game is just going down.\nPlease try again later.");
            return;
        }

        if (g_game.getGameState() == GAME_STATE_CLOSED && !player->hasFlag(PlayerFlag_CanAlwaysLogin)) {
            disconnectClient("Server is currently closed.\nPlease try again later.");
            return;
        }

        if (g_config.getBoolean(ConfigManager::ONE_PLAYER_ON_ACCOUNT) && player->getAccountType() < ACCOUNT_TYPE_GAMEMASTER && g_game.getPlayerByAccount(player->getAccount())) {
            disconnectClient("You may only login with one character\nof your account at the same time.");
            return;
        }

        if (!player->hasFlag(PlayerFlag_CannotBeBanned)) {
            BanInfo banInfo;
            if (IOBan::isAccountBanned(accountId, banInfo)) {
                if (banInfo.reason.empty()) {
                    banInfo.reason = "(none)";
                }

                if (banInfo.expiresAt > 0) {
                    disconnectClient(fmt::format("Your account has been banned until {:s} by {:s}.\n\nReason specified:\n{:s}", formatDateShort(banInfo.expiresAt), banInfo.bannedBy, banInfo.reason));
                } else {
                    disconnectClient(fmt::format("Your account has been permanently banned by {:s}.\n\nReason specified:\n{:s}", banInfo.bannedBy, banInfo.reason));
                }
                return;
            }
        }

        if (std::size_t currentSlot = clientLogin(*player)) {
            uint8_t retryTime = getWaitTime(currentSlot);
            auto output = OutputMessagePool::getOutputMessage();
            output->addByte(0x16);
            output->addString(fmt::format("Too many players online.\nYou are at place {:d} on the waiting list.", currentSlot));
            output->addByte(retryTime);
            send(output);
            disconnect();
            return;
        }

        if (!IOLoginData::loadPlayerById(player, player->getGUID())) {
            disconnectClient("Your character could not be loaded.");
            return;
        }

        player->setOperatingSystem(operatingSystem);

        if (!g_game.placeCreature(player, player->getLoginPosition())) {
            if (!g_game.placeCreature(player, player->getTemplePosition(), false, true)) {
                disconnectClient("Temple position is wrong. Contact the administrator.");
                return;
            }
        }

        if (operatingSystem >= CLIENTOS_OTCLIENT_LINUX) {
            player->registerCreatureEvent("ExtendedOpcode");
        }

        player->lastIP = player->getIP();
        player->lastLoginSaved = std::max<time_t>(time(nullptr), player->lastLoginSaved + 1);
        acceptPackets = true;
    } else {
        if (eventConnect != 0 || !g_config.getBoolean(ConfigManager::REPLACE_KICK_ON_LOGIN)) {
            //Already trying to connect
            disconnectClient("You are already logged in.");
            return;
        }

        if (foundPlayer->client) {
            foundPlayer->disconnect();
            foundPlayer->isConnecting = true;

            eventConnect = g_scheduler.addEvent(createSchedulerTask(1000, std::bind(&ProtocolGame::connect, getThis(), foundPlayer->getID(), operatingSystem)));
        } else {
            connect(foundPlayer->getID(), operatingSystem);
        }
    }
    OutputMessagePool::getInstance().addProtocolToAutosend(shared_from_this());
}

void ProtocolGame::connect(uint32_t playerId, OperatingSystem_t operatingSystem)
{
    eventConnect = 0;

    Player* foundPlayer = g_game.getPlayerByID(playerId);
    if (!foundPlayer || foundPlayer->client) {
        disconnectClient("You are already logged in.");
        return;
    }

    if (isConnectionExpired()) {
        //ProtocolGame::release() has been called at this point and the Connection object
        //no longer exists, so we return to prevent leakage of the Player.
        return;
    }

    player = foundPlayer;
    player->incrementReferenceCounter();

    g_chat->removeUserFromAllChannels(*player);
    //player->clearModalWindows();
    player->setOperatingSystem(operatingSystem);
    player->isConnecting = false;

    player->client = getThis();
    sendAddCreature(player, player->getPosition(), 0, false);
    player->lastIP = player->getIP();
    player->lastLoginSaved = std::max<time_t>(time(nullptr), player->lastLoginSaved + 1);
    player->resetIdleTime();
    acceptPackets = true;
}

void ProtocolGame::logout(bool displayEffect, bool forced)
{
    //dispatcher thread
    if (!player) {
        return;
    }

    if (!player->isRemoved()) {
        if (!forced) {
            if (!player->isAccessPlayer()) {
                if (player->getTile()->hasFlag(TILESTATE_NOLOGOUT)) {
                    player->sendCancelMessage(RETURNVALUE_YOUCANNOTLOGOUTHERE);
                    return;
                }

                if (!player->getTile()->hasFlag(TILESTATE_PROTECTIONZONE) && player->hasCondition(CONDITION_INFIGHT)) {
                    player->sendCancelMessage(RETURNVALUE_YOUMAYNOTLOGOUTDURINGAFIGHT);
                    return;
                }
            }

            //scripting event - onLogout
            if (!g_creatureEvents->playerLogout(player)) {
                //Let the script handle the error message
                return;
            }
        }

        if (displayEffect && player->getHealth() > 0 && !player->isInGhostMode()) {
            g_game.addMagicEffect(player->getPosition(), CONST_ME_POFF);
        }
    }

    disconnect();

    g_game.removeCreature(player);
}

void ProtocolGame::onRecvFirstMessage(NetworkMessage& msg)
{
    if (g_game.getGameState() == GAME_STATE_SHUTDOWN) {
        disconnect();
        return;
    }

    OperatingSystem_t operatingSystem = static_cast<OperatingSystem_t>(msg.get<uint16_t>());
    version = msg.get<uint16_t>();

    //msg.skipBytes(7); // U32 client version, U8 client type, U16 dat revision

    if (!Protocol::RSA_decrypt(msg)) {
        disconnect();
        return;
    }

    xtea::key key;
    key[0] = msg.get<uint32_t>();
    key[1] = msg.get<uint32_t>();
    key[2] = msg.get<uint32_t>();
    key[3] = msg.get<uint32_t>();
    enableXTEAEncryption();
    setXTEAKey(std::move(key));

    if (operatingSystem >= CLIENTOS_OTCLIENT_LINUX) {
        NetworkMessage opcodeMessage;
        opcodeMessage.addByte(0x32);
        opcodeMessage.addByte(0x00);
        opcodeMessage.add<uint16_t>(0x00);
        writeToOutputBuffer(opcodeMessage);
    }

    msg.skipBytes(1); // gamemaster flag

    /*std::string sessionKey = msg.getString();

    auto sessionArgs = explodeString(sessionKey, "\n", 4);
    if (sessionArgs.size() != 4) {
        disconnect();
        return;
    }

    std::string& accountName = sessionArgs[0];
    std::string& password = sessionArgs[1];
    std::string& token = sessionArgs[2];
    uint32_t tokenTime = 0;
    try {
        tokenTime = std::stoul(sessionArgs[3]);
    } catch (const std::invalid_argument&) {
        disconnectClient("Malformed token packet.");
        return;
    } catch (const std::out_of_range&) {
        disconnectClient("Token time is too long.");
        return;
    }*/

    uint32_t accountNumber = msg.get<uint32_t>();
    if (accountNumber == 0) {
        disconnectClient("You must enter your account number.");
        return;
    }

    std::string accountName = std::to_string(accountNumber);
    if (accountName.empty()) {
        disconnectClient("You must enter your account number.");
        return;
    }

    std::string characterName = msg.getString();
    const std::string& password = msg.getString();

    std::string token = "";
    uint32_t tokenTime = 0;

    /*uint32_t timeStamp = msg.get<uint32_t>();
    uint8_t randNumber = msg.getByte();
    if (challengeTimestamp != timeStamp || challengeRandom != randNumber) {
        disconnect();
        return;
    }*/

    if (version < CLIENT_VERSION_MIN || version > CLIENT_VERSION_MAX) {
        disconnectClient(fmt::format("Only clients with protocol {:s} allowed!", CLIENT_VERSION_STR));
        return;
    }

    if (g_game.getGameState() == GAME_STATE_STARTUP) {
        disconnectClient("Gameworld is starting up. Please wait.");
        return;
    }

    if (g_game.getGameState() == GAME_STATE_MAINTAIN) {
        disconnectClient("Gameworld is under maintenance. Please re-connect in a while.");
        return;
    }

    BanInfo banInfo;
    if (IOBan::isIpBanned(getIP(), banInfo)) {
        if (banInfo.reason.empty()) {
            banInfo.reason = "(none)";
        }

        disconnectClient(fmt::format("Your IP has been banned until {:s} by {:s}.\n\nReason specified:\n{:s}", formatDateShort(banInfo.expiresAt), banInfo.bannedBy, banInfo.reason));
        return;
    }

    uint32_t accountId = IOLoginData::gameworldAuthentication(accountName, password, characterName, token, tokenTime);
    if (accountId == 0) {
        disconnectClient("Account name or password is not correct.");
        return;
    }

    g_dispatcher.addTask(createTask(std::bind(&ProtocolGame::login, getThis(), characterName, accountId, operatingSystem)));
}

void ProtocolGame::onConnect()
{
    /*auto output = OutputMessagePool::getOutputMessage();
    static std::random_device rd;
    static std::ranlux24 generator(rd());
    static std::uniform_int_distribution<uint16_t> randNumber(0x00, 0xFF);

    // Skip checksum
    output->skipBytes(sizeof(uint32_t));

    // Packet length & type
    output->add<uint16_t>(0x0006);
    output->addByte(0x1F);

    // Add timestamp & random number
    challengeTimestamp = static_cast<uint32_t>(time(nullptr));
    output->add<uint32_t>(challengeTimestamp);

    challengeRandom = randNumber(generator);
    output->addByte(challengeRandom);

    // Go back and write checksum
    output->skipBytes(-12);
    output->add<uint32_t>(adlerChecksum(output->getOutputBuffer() + sizeof(uint32_t), 8));

    send(output);*/
}

void ProtocolGame::disconnectClient(const std::string& message) const
{
    auto output = OutputMessagePool::getOutputMessage();
    output->addByte(0x14);
    output->addString(message);
    send(output);
    disconnect();
}

void ProtocolGame::writeToOutputBuffer(const NetworkMessage& msg)
{
    auto out = getOutputBuffer(msg.getLength());
    out->append(msg);
}

void ProtocolGame::parsePacket(NetworkMessage& msg)
{
    if (!acceptPackets || g_game.getGameState() == GAME_STATE_SHUTDOWN || msg.getLength() == 0) {
        return;
    }

    uint8_t recvbyte = msg.getByte();

    if (!player) {
        if (recvbyte == 0x0F) {
            disconnect();
        }

        return;
    }

    //a dead player can not performs actions
    if (player->isRemoved() || player->getHealth() <= 0) {
        if (recvbyte == 0x0F) {
            disconnect();
            return;
        }

        if (recvbyte != 0x14) {
            return;
        }
    }

    switch (recvbyte) {
        case 0x14: g_dispatcher.addTask(createTask(std::bind(&ProtocolGame::logout, getThis(), true, false))); break;
        case 0x1D: addGameTask(&Game::playerReceivePingBack, player->getID()); break;
        case 0x1E: addGameTask(&Game::playerReceivePing, player->getID()); break;
        case 0x32: parseExtendedOpcode(msg); break; //otclient extended opcode
        case 0x64: parseAutoWalk(msg); break;
        case 0x65: addGameTask(&Game::playerMove, player->getID(), DIRECTION_NORTH); break;
        case 0x66: addGameTask(&Game::playerMove, player->getID(), DIRECTION_EAST); break;
        case 0x67: addGameTask(&Game::playerMove, player->getID(), DIRECTION_SOUTH); break;
        case 0x68: addGameTask(&Game::playerMove, player->getID(), DIRECTION_WEST); break;
        case 0x69: addGameTask(&Game::playerStopAutoWalk, player->getID()); break;
        case 0x6A: addGameTask(&Game::playerMove, player->getID(), DIRECTION_NORTHEAST); break;
        case 0x6B: addGameTask(&Game::playerMove, player->getID(), DIRECTION_SOUTHEAST); break;
        case 0x6C: addGameTask(&Game::playerMove, player->getID(), DIRECTION_SOUTHWEST); break;
        case 0x6D: addGameTask(&Game::playerMove, player->getID(), DIRECTION_NORTHWEST); break;
        case 0x6F: addGameTaskTimed(DISPATCHER_TASK_EXPIRATION, &Game::playerTurn, player->getID(), DIRECTION_NORTH); break;
        case 0x70: addGameTaskTimed(DISPATCHER_TASK_EXPIRATION, &Game::playerTurn, player->getID(), DIRECTION_EAST); break;
        case 0x71: addGameTaskTimed(DISPATCHER_TASK_EXPIRATION, &Game::playerTurn, player->getID(), DIRECTION_SOUTH); break;
        case 0x72: addGameTaskTimed(DISPATCHER_TASK_EXPIRATION, &Game::playerTurn, player->getID(), DIRECTION_WEST); break;
        case 0x77: parseEquipObject(msg); break;
        case 0x78: parseThrow(msg); break;
        case 0x79: parseLookInShop(msg); break;
        case 0x7A: parsePlayerPurchase(msg); break;
        case 0x7B: parsePlayerSale(msg); break;
        case 0x7C: addGameTask(&Game::playerCloseShop, player->getID()); break;
        case 0x7D: parseRequestTrade(msg); break;
        case 0x7E: parseLookInTrade(msg); break;
        case 0x7F: addGameTask(&Game::playerAcceptTrade, player->getID()); break;
        case 0x80: addGameTask(&Game::playerCloseTrade, player->getID()); break;
        case 0x82: parseUseItem(msg); break;
        case 0x83: parseUseItemEx(msg); break;
        case 0x84: parseUseWithCreature(msg); break;
        case 0x85: parseRotateItem(msg); break;
        case 0x87: parseCloseContainer(msg); break;
        case 0x88: parseUpArrowContainer(msg); break;
        case 0x89: parseTextWindow(msg); break;
        case 0x8A: parseHouseWindow(msg); break;
        case 0x8B: parseWrapItem(msg); break;
        case 0x8C: parseLookAt(msg); break;
        case 0x8D: parseLookInBattleList(msg); break;
        case 0x8E: /* join aggression */ break;
        case 0x96: parseSay(msg); break;
        case 0x97: addGameTask(&Game::playerRequestChannels, player->getID()); break;
        case 0x98: parseOpenChannel(msg); break;
        case 0x99: parseCloseChannel(msg); break;
        case 0x9A: parseOpenPrivateChannel(msg); break;
        case 0x9E: addGameTask(&Game::playerCloseNpcChannel, player->getID()); break;
        case 0xA0: parseFightModes(msg); break;
        case 0xA1: parseAttack(msg); break;
        case 0xA2: parseFollow(msg); break;
        case 0xA3: parseInviteToParty(msg); break;
        case 0xA4: parseJoinParty(msg); break;
        case 0xA5: parseRevokePartyInvite(msg); break;
        case 0xA6: parsePassPartyLeadership(msg); break;
        case 0xA7: addGameTask(&Game::playerLeaveParty, player->getID()); break;
        case 0xA8: parseEnableSharedPartyExperience(msg); break;
        case 0xAA: addGameTask(&Game::playerCreatePrivateChannel, player->getID()); break;
        case 0xAB: parseChannelInvite(msg); break;
        case 0xAC: parseChannelExclude(msg); break;
        case 0xBE: addGameTask(&Game::playerCancelAttackAndFollow, player->getID()); break;
        case 0xC9: /* update tile */ break;
        case 0xCA: parseUpdateContainer(msg); break;
        //case 0xCB: parseBrowseField(msg); break;
        case 0xCC: parseSeekInContainer(msg); break;
        case 0xD2: addGameTask(&Game::playerRequestOutfit, player->getID()); break;
        case 0xD3: parseSetOutfit(msg); break;
        case 0xD4: parseToggleMount(msg); break;
        case 0xDC: parseAddVip(msg); break;
        case 0xDD: parseRemoveVip(msg); break;
        case 0xDE: parseEditVip(msg); break;
        case 0xE6: parseBugReport(msg); break;
        case 0xE7: /* thank you */ break;
        case 0xE8: parseDebugAssert(msg); break;
        case 0xF0: addGameTaskTimed(DISPATCHER_TASK_EXPIRATION, &Game::playerShowQuestLog, player->getID()); break;
        case 0xF1: parseQuestLine(msg); break;
        case 0xF2: parseRuleViolationReport(msg); break;
        case 0xF3: /* get object info */ break;
        /*case 0xF4: parseMarketLeave(); break;
        case 0xF5: parseMarketBrowse(msg); break;
        case 0xF6: parseMarketCreateOffer(msg); break;
        case 0xF7: parseMarketCancelOffer(msg); break;
        case 0xF8: parseMarketAcceptOffer(msg); break;*/
        case 0xF9: parseModalWindowAnswer(msg); break;

        default:
            // std::cout << "Player: " << player->getName() << " sent an unknown packet header: 0x" << std::hex << static_cast<uint16_t>(recvbyte) << std::dec << "!" << std::endl;
            break;
    }

    if (msg.isOverrun()) {
        disconnect();
    }
}

void ProtocolGame::GetTileDescription(const Tile* tile, NetworkMessage& msg)
{
    //msg.add<uint16_t>(0x00); //environmental effects

    int32_t count;
    Item* ground = tile->getGround();
    if (ground) {
        msg.addItem(ground);
        count = 1;
    } else {
        count = 0;
    }

    const TileItemVector* items = tile->getItemList();
    if (items) {
        for (auto it = items->getBeginTopItem(), end = items->getEndTopItem(); it != end; ++it) {
            msg.addItem(*it);

            if (++count == 10) {
                break;
            }
        }
    }

    const CreatureVector* creatures = tile->getCreatures();
    if (creatures) {
        for (auto it = creatures->rbegin(), end = creatures->rend(); it != end; ++it) {
            const Creature* creature = (*it);
            if (!player->canSeeCreature(creature)) {
                continue;
            }

            bool known;
            uint32_t removedKnown;
            checkCreatureAsKnown(creature->getID(), known, removedKnown);
            AddCreature(msg, creature, known, removedKnown);
            ++count;
        }
    }

    if (items && count < 10) {
        for (auto it = items->getBeginDownItem(), end = items->getEndDownItem(); it != end; ++it) {
            msg.addItem(*it);

            if (++count == 10) {
                return;
            }
        }
    }
}

void ProtocolGame::GetMapDescription(int32_t x, int32_t y, int32_t z, int32_t width, int32_t height, NetworkMessage& msg)
{
    int32_t skip = -1;
    int32_t startz, endz, zstep;

    if (z > 7) {
        startz = z - 2;
        endz = std::min<int32_t>(MAP_MAX_LAYERS - 1, z + 2);
        zstep = 1;
    } else {
        startz = 7;
        endz = 0;
        zstep = -1;
    }

    for (int32_t nz = startz; nz != endz + zstep; nz += zstep) {
        GetFloorDescription(msg, x, y, nz, width, height, z - nz, skip);
    }

    if (skip >= 0) {
        msg.addByte(skip);
        msg.addByte(0xFF);
    }
}

void ProtocolGame::GetFloorDescription(NetworkMessage& msg, int32_t x, int32_t y, int32_t z, int32_t width, int32_t height, int32_t offset, int32_t& skip)
{
    for (int32_t nx = 0; nx < width; nx++) {
        for (int32_t ny = 0; ny < height; ny++) {
            Tile* tile = g_game.map.getTile(x + nx + offset, y + ny + offset, z);
            if (tile) {
                if (skip >= 0) {
                    msg.addByte(skip);
                    msg.addByte(0xFF);
                }

                skip = 0;
                GetTileDescription(tile, msg);
            } else if (skip == 0xFE) {
                msg.addByte(0xFF);
                msg.addByte(0xFF);
                skip = -1;
            } else {
                ++skip;
            }
        }
    }
}

void ProtocolGame::checkCreatureAsKnown(uint32_t id, bool& known, uint32_t& removedKnown)
{
    auto result = knownCreatureSet.insert(id);
    if (!result.second) {
        known = true;
        return;
    }

    known = false;

    //if (knownCreatureSet.size() > 1300) {
    if (knownCreatureSet.size() > 150) {
        // Look for a creature to remove
        for (auto it = knownCreatureSet.begin(), end = knownCreatureSet.end(); it != end; ++it) {
            Creature* creature = g_game.getCreatureByID(*it);
            if (!canSee(creature)) {
                removedKnown = *it;
                knownCreatureSet.erase(it);
                return;
            }
        }

        // Bad situation. Let's just remove anyone.
        auto it = knownCreatureSet.begin();
        if (*it == id) {
            ++it;
        }

        removedKnown = *it;
        knownCreatureSet.erase(it);
    } else {
        removedKnown = 0;
    }
}

bool ProtocolGame::canSee(const Creature* c) const
{
    if (!c || !player || c->isRemoved()) {
        return false;
    }

    if (!player->canSeeCreature(c)) {
        return false;
    }

    return canSee(c->getPosition());
}

bool ProtocolGame::canSee(const Position& pos) const
{
    return canSee(pos.x, pos.y, pos.z);
}

bool ProtocolGame::canSee(int32_t x, int32_t y, int32_t z) const
{
    if (!player) {
        return false;
    }

    const Position& myPos = player->getPosition();
    if (myPos.z <= 7) {
        //we are on ground level or above (7 -> 0)
        //view is from 7 -> 0
        if (z > 7) {
            return false;
        }
    } else { // if (myPos.z >= 8) {
        //we are underground (8 -> 15)
        //view is +/- 2 from the floor we stand on
        if (std::abs(myPos.getZ() - z) > 2) {
            return false;
        }
    }

    //negative offset means that the action taken place is on a lower floor than ourself
    int32_t offsetz = myPos.getZ() - z;
    if ((x >= myPos.getX() - Map::maxClientViewportX + offsetz) && (x <= myPos.getX() + (Map::maxClientViewportX + 1) + offsetz) &&
        (y >= myPos.getY() - Map::maxClientViewportY + offsetz) && (y <= myPos.getY() + (Map::maxClientViewportY + 1) + offsetz)) {
        return true;
    }
    return false;
}

// Parse methods
void ProtocolGame::parseChannelInvite(NetworkMessage& msg)
{
    const std::string name = msg.getString();
    addGameTask(&Game::playerChannelInvite, player->getID(), name);
}

void ProtocolGame::parseChannelExclude(NetworkMessage& msg)
{
    const std::string name = msg.getString();
    addGameTask(&Game::playerChannelExclude, player->getID(), name);
}

void ProtocolGame::parseOpenChannel(NetworkMessage& msg)
{
    uint16_t channelId = msg.get<uint16_t>();
    addGameTask(&Game::playerOpenChannel, player->getID(), channelId);
}

void ProtocolGame::parseCloseChannel(NetworkMessage& msg)
{
    uint16_t channelId = msg.get<uint16_t>();
    addGameTask(&Game::playerCloseChannel, player->getID(), channelId);
}

void ProtocolGame::parseOpenPrivateChannel(NetworkMessage& msg)
{
    const std::string receiver = msg.getString();
    addGameTask(&Game::playerOpenPrivateChannel, player->getID(), receiver);
}

void ProtocolGame::parseAutoWalk(NetworkMessage& msg)
{
    uint8_t numdirs = msg.getByte();
    //if (numdirs == 0 || (msg.getBufferPosition() + numdirs) != (msg.getLength() + 8)) {
    if (numdirs == 0 || (msg.getBufferPosition() + numdirs) != (msg.getLength() + 4)) {
        return;
    }

    msg.skipBytes(numdirs);

    std::vector<Direction> path;
    path.reserve(numdirs);

    for (uint8_t i = 0; i < numdirs; ++i) {
        uint8_t rawdir = msg.getPreviousByte();
        switch (rawdir) {
            case 1: path.push_back(DIRECTION_EAST); break;
            case 2: path.push_back(DIRECTION_NORTHEAST); break;
            case 3: path.push_back(DIRECTION_NORTH); break;
            case 4: path.push_back(DIRECTION_NORTHWEST); break;
            case 5: path.push_back(DIRECTION_WEST); break;
            case 6: path.push_back(DIRECTION_SOUTHWEST); break;
            case 7: path.push_back(DIRECTION_SOUTH); break;
            case 8: path.push_back(DIRECTION_SOUTHEAST); break;
            default: break;
        }
    }

    if (path.empty()) {
        return;
    }

    addGameTask(&Game::playerAutoWalk, player->getID(), std::move(path));
}

void ProtocolGame::parseSetOutfit(NetworkMessage& msg)
{
    Outfit_t newOutfit;
    newOutfit.lookType = msg.get<uint16_t>();
    newOutfit.lookHead = msg.getByte();
    newOutfit.lookBody = msg.getByte();
    newOutfit.lookLegs = msg.getByte();
    newOutfit.lookFeet = msg.getByte();
    newOutfit.lookAddons = msg.getByte();
    //newOutfit.lookMount = msg.get<uint16_t>();
    addGameTask(&Game::playerChangeOutfit, player->getID(), newOutfit);
}

void ProtocolGame::parseToggleMount(NetworkMessage& msg)
{
    bool mount = msg.getByte() != 0;
    addGameTask(&Game::playerToggleMount, player->getID(), mount);
}

void ProtocolGame::parseUseItem(NetworkMessage& msg)
{
    Position pos = msg.getPosition();
    uint16_t spriteId = msg.get<uint16_t>();
    uint8_t stackpos = msg.getByte();
    uint8_t index = msg.getByte();
    addGameTaskTimed(DISPATCHER_TASK_EXPIRATION, &Game::playerUseItem, player->getID(), pos, stackpos, index, spriteId);
}

void ProtocolGame::parseUseItemEx(NetworkMessage& msg)
{
    Position fromPos = msg.getPosition();
    uint16_t fromSpriteId = msg.get<uint16_t>();
    uint8_t fromStackPos = msg.getByte();
    Position toPos = msg.getPosition();
    uint16_t toSpriteId = msg.get<uint16_t>();
    uint8_t toStackPos = msg.getByte();
    addGameTaskTimed(DISPATCHER_TASK_EXPIRATION, &Game::playerUseItemEx, player->getID(), fromPos, fromStackPos, fromSpriteId, toPos, toStackPos, toSpriteId);
}

void ProtocolGame::parseUseWithCreature(NetworkMessage& msg)
{
    Position fromPos = msg.getPosition();
    uint16_t spriteId = msg.get<uint16_t>();
    uint8_t fromStackPos = msg.getByte();
    uint32_t creatureId = msg.get<uint32_t>();
    addGameTaskTimed(DISPATCHER_TASK_EXPIRATION, &Game::playerUseWithCreature, player->getID(), fromPos, fromStackPos, creatureId, spriteId);
}

void ProtocolGame::parseCloseContainer(NetworkMessage& msg)
{
    uint8_t cid = msg.getByte();
    addGameTask(&Game::playerCloseContainer, player->getID(), cid);
}

void ProtocolGame::parseUpArrowContainer(NetworkMessage& msg)
{
    uint8_t cid = msg.getByte();
    addGameTask(&Game::playerMoveUpContainer, player->getID(), cid);
}

void ProtocolGame::parseUpdateContainer(NetworkMessage& msg)
{
    uint8_t cid = msg.getByte();
    addGameTask(&Game::playerUpdateContainer, player->getID(), cid);
}

void ProtocolGame::parseThrow(NetworkMessage& msg)
{
    Position fromPos = msg.getPosition();
    uint16_t spriteId = msg.get<uint16_t>();
    uint8_t fromStackpos = msg.getByte();
    Position toPos = msg.getPosition();
    uint8_t count = msg.getByte();

    if (toPos != fromPos) {
        addGameTaskTimed(DISPATCHER_TASK_EXPIRATION, &Game::playerMoveThing, player->getID(), fromPos, spriteId, fromStackpos, toPos, count);
    }
}

void ProtocolGame::parseLookAt(NetworkMessage& msg)
{
    Position pos = msg.getPosition();
    msg.skipBytes(2); // spriteId
    uint8_t stackpos = msg.getByte();
    addGameTaskTimed(DISPATCHER_TASK_EXPIRATION, &Game::playerLookAt, player->getID(), pos, stackpos);
}

void ProtocolGame::parseLookInBattleList(NetworkMessage& msg)
{
    uint32_t creatureId = msg.get<uint32_t>();
    addGameTaskTimed(DISPATCHER_TASK_EXPIRATION, &Game::playerLookInBattleList, player->getID(), creatureId);
}

void ProtocolGame::parseSay(NetworkMessage& msg)
{
    std::string receiver;
    uint16_t channelId;

    SpeakClasses type = static_cast<SpeakClasses>(msg.getByte());
    switch (type) {
        //case TALKTYPE_PRIVATE_TO:
        //case TALKTYPE_PRIVATE_RED_TO:
        case TALKTYPE_PRIVATE:
        case TALKTYPE_PRIVATE_RED:
            receiver = msg.getString();
            channelId = 0;
            break;

        case TALKTYPE_CHANNEL_Y:
        case TALKTYPE_CHANNEL_R1:
        case TALKTYPE_CHANNEL_R2:
            channelId = msg.get<uint16_t>();
            break;

        default:
            channelId = 0;
            break;
    }

    const std::string text = msg.getString();
    if (text.length() > 255) {
        return;
    }

    addGameTask(&Game::playerSay, player->getID(), channelId, type, receiver, text);
}

void ProtocolGame::parseFightModes(NetworkMessage& msg)
{
    uint8_t rawFightMode = msg.getByte(); // 1 - offensive, 2 - balanced, 3 - defensive
    uint8_t rawChaseMode = msg.getByte(); // 0 - stand while fighting, 1 - chase opponent
    uint8_t rawSecureMode = msg.getByte(); // 0 - can't attack unmarked, 1 - can attack unmarked
    // uint8_t rawPvpMode = msg.getByte(); // pvp mode introduced in 10.0

    fightMode_t fightMode;
    if (rawFightMode == 1) {
        fightMode = FIGHTMODE_ATTACK;
    } else if (rawFightMode == 2) {
        fightMode = FIGHTMODE_BALANCED;
    } else {
        fightMode = FIGHTMODE_DEFENSE;
    }

    addGameTask(&Game::playerSetFightModes, player->getID(), fightMode, rawChaseMode != 0, rawSecureMode != 0);
}

void ProtocolGame::parseAttack(NetworkMessage& msg)
{
    uint32_t creatureId = msg.get<uint32_t>();
    // msg.get<uint32_t>(); creatureId (same as above)
    addGameTask(&Game::playerSetAttackedCreature, player->getID(), creatureId);
}

void ProtocolGame::parseFollow(NetworkMessage& msg)
{
    uint32_t creatureId = msg.get<uint32_t>();
    // msg.get<uint32_t>(); creatureId (same as above)
    addGameTask(&Game::playerFollowCreature, player->getID(), creatureId);
}

void ProtocolGame::parseEquipObject(NetworkMessage& msg)
{
    uint16_t spriteId = msg.get<uint16_t>();
    // msg.get<uint8_t>();

    addGameTaskTimed(DISPATCHER_TASK_EXPIRATION, &Game::playerEquipItem, player->getID(), spriteId);
}

void ProtocolGame::parseTextWindow(NetworkMessage& msg)
{
    uint32_t windowTextId = msg.get<uint32_t>();
    const std::string newText = msg.getString();
    addGameTask(&Game::playerWriteItem, player->getID(), windowTextId, newText);
}

void ProtocolGame::parseHouseWindow(NetworkMessage& msg)
{
    uint8_t doorId = msg.getByte();
    uint32_t id = msg.get<uint32_t>();
    const std::string text = msg.getString();
    addGameTask(&Game::playerUpdateHouseWindow, player->getID(), doorId, id, text);
}

void ProtocolGame::parseWrapItem(NetworkMessage& msg)
{
    Position pos = msg.getPosition();
    uint16_t spriteId = msg.get<uint16_t>();
    uint8_t stackpos = msg.getByte();
    addGameTaskTimed(DISPATCHER_TASK_EXPIRATION, &Game::playerWrapItem, player->getID(), pos, stackpos, spriteId);
}

void ProtocolGame::parseLookInShop(NetworkMessage& msg)
{
    uint16_t id = msg.get<uint16_t>();
    uint8_t count = msg.getByte();
    addGameTaskTimed(DISPATCHER_TASK_EXPIRATION, &Game::playerLookInShop, player->getID(), id, count);
}

void ProtocolGame::parsePlayerPurchase(NetworkMessage& msg)
{
    uint16_t id = msg.get<uint16_t>();
    uint8_t count = msg.getByte();
    uint8_t amount = msg.getByte();
    bool ignoreCap = msg.getByte() != 0;
    bool inBackpacks = msg.getByte() != 0;
    addGameTaskTimed(DISPATCHER_TASK_EXPIRATION, &Game::playerPurchaseItem, player->getID(), id, count, amount, ignoreCap, inBackpacks);
}

void ProtocolGame::parsePlayerSale(NetworkMessage& msg)
{
    uint16_t id = msg.get<uint16_t>();
    uint8_t count = msg.getByte();
    uint8_t amount = msg.getByte();
    bool ignoreEquipped = msg.getByte() != 0;
    addGameTaskTimed(DISPATCHER_TASK_EXPIRATION, &Game::playerSellItem, player->getID(), id, count, amount, ignoreEquipped);
}

void ProtocolGame::parseRequestTrade(NetworkMessage& msg)
{
    Position pos = msg.getPosition();
    uint16_t spriteId = msg.get<uint16_t>();
    uint8_t stackpos = msg.getByte();
    uint32_t playerId = msg.get<uint32_t>();
    addGameTask(&Game::playerRequestTrade, player->getID(), pos, stackpos, playerId, spriteId);
}

void ProtocolGame::parseLookInTrade(NetworkMessage& msg)
{
    bool counterOffer = (msg.getByte() == 0x01);
    uint8_t index = msg.getByte();
    addGameTaskTimed(DISPATCHER_TASK_EXPIRATION, &Game::playerLookInTrade, player->getID(), counterOffer, index);
}

void ProtocolGame::parseAddVip(NetworkMessage& msg)
{
    const std::string name = msg.getString();
    addGameTask(&Game::playerRequestAddVip, player->getID(), name);
}

void ProtocolGame::parseRemoveVip(NetworkMessage& msg)
{
    uint32_t guid = msg.get<uint32_t>();
    addGameTask(&Game::playerRequestRemoveVip, player->getID(), guid);
}

void ProtocolGame::parseEditVip(NetworkMessage& msg)
{
    uint32_t guid = msg.get<uint32_t>();
    const std::string description = msg.getString();
    uint32_t icon = std::min<uint32_t>(10, msg.get<uint32_t>()); // 10 is max icon in 9.63
    bool notify = msg.getByte() != 0;
    addGameTask(&Game::playerRequestEditVip, player->getID(), guid, description, icon, notify);
}

void ProtocolGame::parseRotateItem(NetworkMessage& msg)
{
    Position pos = msg.getPosition();
    uint16_t spriteId = msg.get<uint16_t>();
    uint8_t stackpos = msg.getByte();
    addGameTaskTimed(DISPATCHER_TASK_EXPIRATION, &Game::playerRotateItem, player->getID(), pos, stackpos, spriteId);
}

void ProtocolGame::parseRuleViolationReport(NetworkMessage& msg)
{
    uint8_t reportType = msg.getByte();
    uint8_t reportReason = msg.getByte();
    const std::string& targetName = msg.getString();
    const std::string& comment = msg.getString();
    std::string translation;
    if (reportType == REPORT_TYPE_NAME) {
        translation = msg.getString();
    } else if (reportType == REPORT_TYPE_STATEMENT) {
        translation = msg.getString();
        msg.get<uint32_t>(); // statement id, used to get whatever player have said, we don't log that.
    }

    addGameTask(&Game::playerReportRuleViolation, player->getID(), targetName, reportType, reportReason, comment, translation);
}

void ProtocolGame::parseBugReport(NetworkMessage& msg)
{
    uint8_t category = msg.getByte();
    std::string message = msg.getString();

    Position position;
    if (category == BUG_CATEGORY_MAP) {
        position = msg.getPosition();
    }

    addGameTask(&Game::playerReportBug, player->getID(), message, position, category);
}

void ProtocolGame::parseDebugAssert(NetworkMessage& msg)
{
    if (debugAssertSent) {
        return;
    }

    debugAssertSent = true;

    std::string assertLine = msg.getString();
    std::string date = msg.getString();
    std::string description = msg.getString();
    std::string comment = msg.getString();
    addGameTask(&Game::playerDebugAssert, player->getID(), assertLine, date, description, comment);
}

void ProtocolGame::parseInviteToParty(NetworkMessage& msg)
{
    uint32_t targetId = msg.get<uint32_t>();
    addGameTask(&Game::playerInviteToParty, player->getID(), targetId);
}

void ProtocolGame::parseJoinParty(NetworkMessage& msg)
{
    uint32_t targetId = msg.get<uint32_t>();
    addGameTask(&Game::playerJoinParty, player->getID(), targetId);
}

void ProtocolGame::parseRevokePartyInvite(NetworkMessage& msg)
{
    uint32_t targetId = msg.get<uint32_t>();
    addGameTask(&Game::playerRevokePartyInvitation, player->getID(), targetId);
}

void ProtocolGame::parsePassPartyLeadership(NetworkMessage& msg)
{
    uint32_t targetId = msg.get<uint32_t>();
    addGameTask(&Game::playerPassPartyLeadership, player->getID(), targetId);
}

void ProtocolGame::parseEnableSharedPartyExperience(NetworkMessage& msg)
{
    bool sharedExpActive = msg.getByte() == 1;
    addGameTask(&Game::playerEnableSharedPartyExperience, player->getID(), sharedExpActive);
}

void ProtocolGame::parseQuestLine(NetworkMessage& msg)
{
    uint16_t questId = msg.get<uint16_t>();
    addGameTask(&Game::playerShowQuestLine, player->getID(), questId);
}

/*
void ProtocolGame::parseMarketLeave()
{
    addGameTask(&Game::playerLeaveMarket, player->getID());
}

void ProtocolGame::parseMarketBrowse(NetworkMessage& msg)
{
    uint16_t browseId = msg.get<uint16_t>();

    if (browseId == MARKETREQUEST_OWN_OFFERS) {
        addGameTask(&Game::playerBrowseMarketOwnOffers, player->getID());
    } else if (browseId == MARKETREQUEST_OWN_HISTORY) {
        addGameTask(&Game::playerBrowseMarketOwnHistory, player->getID());
    } else {
        addGameTask(&Game::playerBrowseMarket, player->getID(), browseId);
    }
}

void ProtocolGame::parseMarketCreateOffer(NetworkMessage& msg)
{
    uint8_t type = msg.getByte();
    uint16_t spriteId = msg.get<uint16_t>();
    uint16_t amount = msg.get<uint16_t>();
    uint32_t price = msg.get<uint32_t>();
    bool anonymous = (msg.getByte() != 0);
    addGameTask(&Game::playerCreateMarketOffer, player->getID(), type, spriteId, amount, price, anonymous);
}

void ProtocolGame::parseMarketCancelOffer(NetworkMessage& msg)
{
    uint32_t timestamp = msg.get<uint32_t>();
    uint16_t counter = msg.get<uint16_t>();
    addGameTask(&Game::playerCancelMarketOffer, player->getID(), timestamp, counter);
}

void ProtocolGame::parseMarketAcceptOffer(NetworkMessage& msg)
{
    uint32_t timestamp = msg.get<uint32_t>();
    uint16_t counter = msg.get<uint16_t>();
    uint16_t amount = msg.get<uint16_t>();
    addGameTask(&Game::playerAcceptMarketOffer, player->getID(), timestamp, counter, amount);
}
*/
void ProtocolGame::parseModalWindowAnswer(NetworkMessage& msg)
{
    uint32_t id = msg.get<uint32_t>();
    uint8_t button = msg.getByte();
    uint8_t choice = msg.getByte();
    addGameTask(&Game::playerAnswerModalWindow, player->getID(), id, button, choice);
}
/*
void ProtocolGame::parseBrowseField(NetworkMessage& msg)
{
    const Position& pos = msg.getPosition();
    addGameTask(&Game::playerBrowseField, player->getID(), pos);
}*/

void ProtocolGame::parseSeekInContainer(NetworkMessage& msg)
{
    uint8_t containerId = msg.getByte();
    uint16_t index = msg.get<uint16_t>();
    addGameTask(&Game::playerSeekInContainer, player->getID(), containerId, index);
}

// Send methods
void ProtocolGame::sendOpenPrivateChannel(const std::string& receiver)
{
    NetworkMessage msg;
    msg.addByte(0xAD);
    msg.addString(receiver);
    writeToOutputBuffer(msg);
}

void ProtocolGame::sendChannelEvent(uint16_t channelId, const std::string& playerName, ChannelEvent_t channelEvent)
{
    NetworkMessage msg;
    msg.addByte(0xF3);
    msg.add<uint16_t>(channelId);
    msg.addString(playerName);
    msg.addByte(channelEvent);
    writeToOutputBuffer(msg);
}

void ProtocolGame::sendCreatureOutfit(const Creature* creature, const Outfit_t& outfit)
{
    if (!canSee(creature)) {
        return;
    }

    NetworkMessage msg;
    msg.addByte(0x8E);
    msg.add<uint32_t>(creature->getID());
    AddOutfit(msg, outfit);
    writeToOutputBuffer(msg);
}

void ProtocolGame::sendCreatureLight(const Creature* creature)
{
    if (!canSee(creature)) {
        return;
    }

    NetworkMessage msg;
    AddCreatureLight(msg, creature);
    writeToOutputBuffer(msg);
}

void ProtocolGame::sendWorldLight(LightInfo lightInfo)
{
    NetworkMessage msg;
    AddWorldLight(msg, lightInfo);
    writeToOutputBuffer(msg);
}

void ProtocolGame::sendCreatureWalkthrough(const Creature* creature, bool walkthrough)
{
    if (!canSee(creature)) {
        return;
    }

    NetworkMessage msg;
    msg.addByte(0x92);
    msg.add<uint32_t>(creature->getID());
    msg.addByte(walkthrough ? 0x00 : 0x01);
    writeToOutputBuffer(msg);
}

void ProtocolGame::sendCreatureShield(const Creature* creature)
{
    if (!canSee(creature)) {
        return;
    }

    NetworkMessage msg;
    msg.addByte(0x91);
    msg.add<uint32_t>(creature->getID());
    msg.addByte(player->getPartyShield(creature->getPlayer()));
    writeToOutputBuffer(msg);
}

void ProtocolGame::sendCreatureSkull(const Creature* creature)
{
    if (g_game.getWorldType() != WORLD_TYPE_PVP) {
        return;
    }

    if (!canSee(creature)) {
        return;
    }

    NetworkMessage msg;
    msg.addByte(0x90);
    msg.add<uint32_t>(creature->getID());
    msg.addByte(player->getSkullClient(creature));
    writeToOutputBuffer(msg);
}

void ProtocolGame::sendCreatureType(uint32_t creatureId, uint8_t creatureType)
{
    NetworkMessage msg;
    msg.addByte(0x95);
    msg.add<uint32_t>(creatureId);
    msg.addByte(creatureType);
    writeToOutputBuffer(msg);
}

void ProtocolGame::sendCreatureHelpers(uint32_t creatureId, uint16_t helpers)
{
    NetworkMessage msg;
    msg.addByte(0x94);
    msg.add<uint32_t>(creatureId);
    msg.add<uint16_t>(helpers);
    writeToOutputBuffer(msg);
}

void ProtocolGame::sendCreatureSquare(const Creature* creature, SquareColor_t color)
{
    if (!canSee(creature)) {
        return;
    }

    NetworkMessage msg;
    msg.addByte(0x86);
    msg.add<uint32_t>(creature->getID());
    //msg.addByte(0x01);
    msg.addByte(color);
    writeToOutputBuffer(msg);
}

void ProtocolGame::sendTutorial(uint8_t tutorialId)
{
    NetworkMessage msg;
    msg.addByte(0xDC);
    msg.addByte(tutorialId);
    writeToOutputBuffer(msg);
}

void ProtocolGame::sendAddMarker(const Position& pos, uint8_t markType, const std::string& desc)
{
    NetworkMessage msg;
    msg.addByte(0xDD);
    msg.addPosition(pos);
    msg.addByte(markType);
    msg.addString(desc);
    writeToOutputBuffer(msg);
}

void ProtocolGame::sendReLoginWindow(uint8_t unfairFightReduction)
{
    NetworkMessage msg;
    msg.addByte(0x28);
    msg.addByte(0x00);
    msg.addByte(unfairFightReduction);
    writeToOutputBuffer(msg);
}

void ProtocolGame::sendStats()
{
    NetworkMessage msg;
    AddPlayerStats(msg);
    writeToOutputBuffer(msg);
}

void ProtocolGame::sendBasicData()
{
    NetworkMessage msg;
    msg.addByte(0x9F);
    if (player->isPremium()) {
        msg.addByte(1);
        msg.add<uint32_t>(g_config.getBoolean(ConfigManager::FREE_PREMIUM) ? 0 : player->premiumEndsAt);
    } else {
        msg.addByte(0);
        msg.add<uint32_t>(0);
    }
    msg.addByte(player->getVocation()->getClientId());
    msg.add<uint16_t>(0xFF); // number of known spells
    for (uint8_t spellId = 0x00; spellId < 0xFF; spellId++) {
        msg.addByte(spellId);
    }
    writeToOutputBuffer(msg);
}

void ProtocolGame::sendTextMessage(const TextMessage& message)
{
    NetworkMessage msg;
    /*msg.addByte(0xB4);
    msg.addByte(message.type);
    switch (message.type) {
        case MESSAGE_DAMAGE_DEALT:
        case MESSAGE_DAMAGE_RECEIVED:
        case MESSAGE_DAMAGE_OTHERS: {
            msg.addPosition(message.position);
            msg.add<uint32_t>(message.primary.value);
            msg.addByte(message.primary.color);
            msg.add<uint32_t>(message.secondary.value);
            msg.addByte(message.secondary.color);
            break;
        }
        case MESSAGE_HEALED:
        case MESSAGE_HEALED_OTHERS:
        case MESSAGE_EXPERIENCE:
        case MESSAGE_EXPERIENCE_OTHERS: {
            msg.addPosition(message.position);
            msg.add<uint32_t>(message.primary.value);
            msg.addByte(message.primary.color);
            break;
        }
        case MESSAGE_GUILD:
        case MESSAGE_PARTY_MANAGEMENT:
        case MESSAGE_PARTY:
            msg.add<uint16_t>(message.channelId);
            break;
        default: {
            break;
        }
    }*/
    msg.addByte(0xB4);
    msg.addByte(message.type);
    msg.addString(message.text);
    writeToOutputBuffer(msg);
}

void ProtocolGame::sendColoredText(const ColoredText& coloredText)
{
    if (!canSee(coloredText.position)) {
        return;
    }

    NetworkMessage msg;
    msg.addByte(0x84);
    msg.addPosition(coloredText.position);
    msg.addByte(coloredText.color);
    msg.addString(coloredText.text);
    writeToOutputBuffer(msg);
}

void ProtocolGame::sendClosePrivate(uint16_t channelId)
{
    NetworkMessage msg;
    msg.addByte(0xB3);
    msg.add<uint16_t>(channelId);
    writeToOutputBuffer(msg);
}

void ProtocolGame::sendCreatePrivateChannel(uint16_t channelId, const std::string& channelName)
{
    NetworkMessage msg;
    msg.addByte(0xB2);
    msg.add<uint16_t>(channelId);
    msg.addString(channelName);
    /*msg.add<uint16_t>(0x01);
    msg.addString(player->getName());
    msg.add<uint16_t>(0x00);
    */
    writeToOutputBuffer(msg);
}

void ProtocolGame::sendChannelsDialog()
{
    NetworkMessage msg;
    msg.addByte(0xAB);

    const ChannelList& list = g_chat->getChannelList(*player);
    msg.addByte(list.size());
    for (ChatChannel* channel : list) {
        msg.add<uint16_t>(channel->getId());
        msg.addString(channel->getName());
    }

    writeToOutputBuffer(msg);
}

void ProtocolGame::sendChannel(uint16_t channelId, const std::string& channelName, const UsersMap*, const InvitedMap*)
{
    NetworkMessage msg;
    msg.addByte(0xAC);

    msg.add<uint16_t>(channelId);
    msg.addString(channelName);

    /*if (channelUsers) {
        msg.add<uint16_t>(channelUsers->size());
        for (const auto& it : *channelUsers) {
            msg.addString(it.second->getName());
        }
    } else {
        msg.add<uint16_t>(0x00);
    }

    if (invitedUsers) {
        msg.add<uint16_t>(invitedUsers->size());
        for (const auto& it : *invitedUsers) {
            msg.addString(it.second->getName());
        }
    } else {
        msg.add<uint16_t>(0x00);
    }*/
    writeToOutputBuffer(msg);
}

void ProtocolGame::sendChannelMessage(const std::string& author, const std::string& text, SpeakClasses type, uint16_t channel)
{
    NetworkMessage msg;
    msg.addByte(0xAA);
    msg.add<uint32_t>(0x00);
    msg.addString(author);
    msg.add<uint16_t>(0x00);
    msg.addByte(type);
    msg.add<uint16_t>(channel);
    msg.addString(text);
    writeToOutputBuffer(msg);
}

void ProtocolGame::sendIcons(uint16_t icons)
{
    NetworkMessage msg;
    msg.addByte(0xA2);
    //msg.add<uint16_t>(icons);
    msg.addByte(icons);
    writeToOutputBuffer(msg);
}

void ProtocolGame::sendContainer(uint8_t cid, const Container* container, bool hasParent, uint16_t firstIndex)
{
    NetworkMessage msg;
    msg.addByte(0x6E);

    msg.addByte(cid);

    /*if (container->getID() == ITEM_BROWSEFIELD) {
        msg.addItem(ITEM_BAG, 1);
        msg.addString("Browse Field");
    } else {
        msg.addItem(container);
        msg.addString(container->getName());
    }*/

    msg.addItem(container);
    msg.addString(container->getName());

    msg.addByte(container->capacity());

    msg.addByte(hasParent ? 0x01 : 0x00);

    msg.addByte(std::min<uint32_t>(0xFF, container->size()));

    uint32_t i = 0;
    const ItemDeque& itemList = container->getItemList();
    for (ItemDeque::const_iterator it = itemList.begin() + firstIndex, end = itemList.end(); i < 0xFF && it != end; ++it, ++i) {
        msg.addItem(*it);
    }

    /*msg.addByte(container->isUnlocked() ? 0x01 : 0x00); // Drag and drop
    msg.addByte(container->hasPagination() ? 0x01 : 0x00); // Pagination

    uint32_t containerSize = container->size();
    msg.add<uint16_t>(containerSize);
    msg.add<uint16_t>(firstIndex);
    if (firstIndex < containerSize) {
        uint8_t itemsToSend = std::min<uint32_t>(std::min<uint32_t>(container->capacity(), containerSize - firstIndex), std::numeric_limits<uint8_t>::max());

        msg.addByte(itemsToSend);
        for (auto it = container->getItemList().begin() + firstIndex, end = it + itemsToSend; it != end; ++it) {
            msg.addItem(*it);
        }
    } else {
        msg.addByte(0x00);
    }*/
    writeToOutputBuffer(msg);
}

void ProtocolGame::sendShop(Npc* npc, const ShopInfoList& itemList)
{
    NetworkMessage msg;
    msg.addByte(0x7A);
    msg.addString(npc->getName());

    uint16_t itemsToSend = std::min<size_t>(itemList.size(), std::numeric_limits<uint16_t>::max());
    msg.add<uint16_t>(itemsToSend);

    uint16_t i = 0;
    for (auto it = itemList.begin(); i < itemsToSend; ++it, ++i) {
        AddShopItem(msg, *it);
    }

    writeToOutputBuffer(msg);
}

void ProtocolGame::sendCloseShop()
{
    NetworkMessage msg;
    msg.addByte(0x7C);
    writeToOutputBuffer(msg);
}

void ProtocolGame::sendSaleItemList(const std::list<ShopInfo>& shop)
{
    NetworkMessage msg;
    msg.addByte(0x7B);
    msg.add<uint64_t>(player->getMoney() + player->getBankBalance());

    std::map<uint16_t, uint32_t> saleMap;

    if (shop.size() <= 5) {
        // For very small shops it's not worth it to create the complete map
        for (const ShopInfo& shopInfo : shop) {
            if (shopInfo.sellPrice == 0) {
                continue;
            }

            int8_t subtype = -1;

            const ItemType& itemType = Item::items[shopInfo.itemId];
            if (itemType.hasSubType() && !itemType.stackable) {
                subtype = (shopInfo.subType == 0 ? -1 : shopInfo.subType);
            }

            uint32_t count = player->getItemTypeCount(shopInfo.itemId, subtype);
            if (count > 0) {
                saleMap[shopInfo.itemId] = count;
            }
        }
    } else {
        // Large shop, it's better to get a cached map of all item counts and use it
        // We need a temporary map since the finished map should only contain items
        // available in the shop
        std::map<uint32_t, uint32_t> tempSaleMap;
        player->getAllItemTypeCount(tempSaleMap);

        // We must still check manually for the special items that require subtype matches
        // (That is, fluids such as potions etc., actually these items are very few since
        // health potions now use their own ID)
        for (const ShopInfo& shopInfo : shop) {
            if (shopInfo.sellPrice == 0) {
                continue;
            }

            int8_t subtype = -1;

            const ItemType& itemType = Item::items[shopInfo.itemId];
            if (itemType.hasSubType() && !itemType.stackable) {
                subtype = (shopInfo.subType == 0 ? -1 : shopInfo.subType);
            }

            if (subtype != -1) {
                uint32_t count;
                if (itemType.isFluidContainer() || itemType.isSplash()) {
                    count = player->getItemTypeCount(shopInfo.itemId, subtype); // This shop item requires extra checks
                } else {
                    count = subtype;
                }

                if (count > 0) {
                    saleMap[shopInfo.itemId] = count;
                }
            } else {
                std::map<uint32_t, uint32_t>::const_iterator findIt = tempSaleMap.find(shopInfo.itemId);
                if (findIt != tempSaleMap.end() && findIt->second > 0) {
                    saleMap[shopInfo.itemId] = findIt->second;
                }
            }
        }
    }

    uint8_t itemsToSend = std::min<size_t>(saleMap.size(), std::numeric_limits<uint8_t>::max());
    msg.addByte(itemsToSend);

    uint8_t i = 0;
    for (std::map<uint16_t, uint32_t>::const_iterator it = saleMap.begin(); i < itemsToSend; ++it, ++i) {
        msg.addItemId(it->first);
        msg.addByte(std::min<uint32_t>(it->second, std::numeric_limits<uint8_t>::max()));
    }

    writeToOutputBuffer(msg);
}

/*
void ProtocolGame::sendMarketEnter(uint32_t depotId)
{
    NetworkMessage msg;
    msg.addByte(0xF6);

    msg.add<uint64_t>(player->getBankBalance());
    msg.addByte(std::min<uint32_t>(IOMarket::getPlayerOfferCount(player->getGUID()), std::numeric_limits<uint8_t>::max()));

    DepotChest* depotChest = player->getDepotChest(depotId, false);
    if (!depotChest) {
        msg.add<uint16_t>(0x00);
        writeToOutputBuffer(msg);
        return;
    }

    player->setInMarket(true);

    std::map<uint16_t, uint32_t> depotItems;
    std::forward_list<Container*> containerList { depotChest, player->getInbox() };

    do {
        Container* container = containerList.front();
        containerList.pop_front();

        for (Item* item : container->getItemList()) {
            Container* c = item->getContainer();
            if (c && !c->empty()) {
                containerList.push_front(c);
                continue;
            }

            const ItemType& itemType = Item::items[item->getID()];
            if (itemType.wareId == 0) {
                continue;
            }

            if (c && (!itemType.isContainer() || c->capacity() != itemType.maxItems)) {
                continue;
            }

            if (!item->hasMarketAttributes()) {
                continue;
            }

            depotItems[itemType.wareId] += Item::countByType(item, -1);
        }
    } while (!containerList.empty());

    uint16_t itemsToSend = std::min<size_t>(depotItems.size(), std::numeric_limits<uint16_t>::max());
    msg.add<uint16_t>(itemsToSend);

    uint16_t i = 0;
    for (std::map<uint16_t, uint32_t>::const_iterator it = depotItems.begin(); i < itemsToSend; ++it, ++i) {
        msg.add<uint16_t>(it->first);
        msg.add<uint16_t>(std::min<uint32_t>(0xFFFF, it->second));
    }

    writeToOutputBuffer(msg);
}
*/

void ProtocolGame::sendMarketLeave()
{
    NetworkMessage msg;
    msg.addByte(0xF7);
    writeToOutputBuffer(msg);
}

void ProtocolGame::sendMarketBrowseItem(uint16_t itemId, const MarketOfferList& buyOffers, const MarketOfferList& sellOffers)
{
    NetworkMessage msg;

    msg.addByte(0xF9);
    msg.addItemId(itemId);

    msg.add<uint32_t>(buyOffers.size());
    for (const MarketOffer& offer : buyOffers) {
        msg.add<uint32_t>(offer.timestamp);
        msg.add<uint16_t>(offer.counter);
        msg.add<uint16_t>(offer.amount);
        msg.add<uint32_t>(offer.price);
        msg.addString(offer.playerName);
    }

    msg.add<uint32_t>(sellOffers.size());
    for (const MarketOffer& offer : sellOffers) {
        msg.add<uint32_t>(offer.timestamp);
        msg.add<uint16_t>(offer.counter);
        msg.add<uint16_t>(offer.amount);
        msg.add<uint32_t>(offer.price);
        msg.addString(offer.playerName);
    }

    writeToOutputBuffer(msg);
}

void ProtocolGame::sendMarketAcceptOffer(const MarketOfferEx& offer)
{
    NetworkMessage msg;
    msg.addByte(0xF9);
    msg.addItemId(offer.itemId);

    if (offer.type == MARKETACTION_BUY) {
        msg.add<uint32_t>(0x01);
        msg.add<uint32_t>(offer.timestamp);
        msg.add<uint16_t>(offer.counter);
        msg.add<uint16_t>(offer.amount);
        msg.add<uint32_t>(offer.price);
        msg.addString(offer.playerName);
        msg.add<uint32_t>(0x00);
    } else {
        msg.add<uint32_t>(0x00);
        msg.add<uint32_t>(0x01);
        msg.add<uint32_t>(offer.timestamp);
        msg.add<uint16_t>(offer.counter);
        msg.add<uint16_t>(offer.amount);
        msg.add<uint32_t>(offer.price);
        msg.addString(offer.playerName);
    }

    writeToOutputBuffer(msg);
}

void ProtocolGame::sendMarketBrowseOwnOffers(const MarketOfferList& buyOffers, const MarketOfferList& sellOffers)
{
    NetworkMessage msg;
    msg.addByte(0xF9);
    msg.add<uint16_t>(MARKETREQUEST_OWN_OFFERS);

    msg.add<uint32_t>(buyOffers.size());
    for (const MarketOffer& offer : buyOffers) {
        msg.add<uint32_t>(offer.timestamp);
        msg.add<uint16_t>(offer.counter);
        msg.addItemId(offer.itemId);
        msg.add<uint16_t>(offer.amount);
        msg.add<uint32_t>(offer.price);
    }

    msg.add<uint32_t>(sellOffers.size());
    for (const MarketOffer& offer : sellOffers) {
        msg.add<uint32_t>(offer.timestamp);
        msg.add<uint16_t>(offer.counter);
        msg.addItemId(offer.itemId);
        msg.add<uint16_t>(offer.amount);
        msg.add<uint32_t>(offer.price);
    }

    writeToOutputBuffer(msg);
}

void ProtocolGame::sendMarketCancelOffer(const MarketOfferEx& offer)
{
    NetworkMessage msg;
    msg.addByte(0xF9);
    msg.add<uint16_t>(MARKETREQUEST_OWN_OFFERS);

    if (offer.type == MARKETACTION_BUY) {
        msg.add<uint32_t>(0x01);
        msg.add<uint32_t>(offer.timestamp);
        msg.add<uint16_t>(offer.counter);
        msg.addItemId(offer.itemId);
        msg.add<uint16_t>(offer.amount);
        msg.add<uint32_t>(offer.price);
        msg.add<uint32_t>(0x00);
    } else {
        msg.add<uint32_t>(0x00);
        msg.add<uint32_t>(0x01);
        msg.add<uint32_t>(offer.timestamp);
        msg.add<uint16_t>(offer.counter);
        msg.addItemId(offer.itemId);
        msg.add<uint16_t>(offer.amount);
        msg.add<uint32_t>(offer.price);
    }

    writeToOutputBuffer(msg);
}

void ProtocolGame::sendMarketBrowseOwnHistory(const HistoryMarketOfferList& buyOffers, const HistoryMarketOfferList& sellOffers)
{
    uint32_t i = 0;
    std::map<uint32_t, uint16_t> counterMap;
    uint32_t buyOffersToSend = std::min<uint32_t>(buyOffers.size(), 810 + std::max<int32_t>(0, 810 - sellOffers.size()));
    uint32_t sellOffersToSend = std::min<uint32_t>(sellOffers.size(), 810 + std::max<int32_t>(0, 810 - buyOffers.size()));

    NetworkMessage msg;
    msg.addByte(0xF9);
    msg.add<uint16_t>(MARKETREQUEST_OWN_HISTORY);

    msg.add<uint32_t>(buyOffersToSend);
    for (auto it = buyOffers.begin(); i < buyOffersToSend; ++it, ++i) {
        msg.add<uint32_t>(it->timestamp);
        msg.add<uint16_t>(counterMap[it->timestamp]++);
        msg.addItemId(it->itemId);
        msg.add<uint16_t>(it->amount);
        msg.add<uint32_t>(it->price);
        msg.addByte(it->state);
    }

    counterMap.clear();
    i = 0;

    msg.add<uint32_t>(sellOffersToSend);
    for (auto it = sellOffers.begin(); i < sellOffersToSend; ++it, ++i) {
        msg.add<uint32_t>(it->timestamp);
        msg.add<uint16_t>(counterMap[it->timestamp]++);
        msg.addItemId(it->itemId);
        msg.add<uint16_t>(it->amount);
        msg.add<uint32_t>(it->price);
        msg.addByte(it->state);
    }

    writeToOutputBuffer(msg);
}

void ProtocolGame::sendMarketDetail(uint16_t itemId)
{
    NetworkMessage msg;
    msg.addByte(0xF8);
    msg.addItemId(itemId);

    const ItemType& it = Item::items[itemId];
    if (it.armor != 0) {
        msg.addString(std::to_string(it.armor));
    } else {
        msg.add<uint16_t>(0x00);
    }

    if (it.attack != 0) {
        // TODO: chance to hit, range
        // example:
        // "attack +x, chance to hit +y%, z fields"
        if (it.abilities && it.abilities->elementType != COMBAT_NONE && it.abilities->elementDamage != 0) {
            msg.addString(fmt::format("{:d} physical +{:d} {:s}", it.attack, it.abilities->elementDamage, getCombatName(it.abilities->elementType)));
        } else {
            msg.addString(std::to_string(it.attack));
        }
    } else {
        msg.add<uint16_t>(0x00);
    }

    if (it.isContainer()) {
        msg.addString(std::to_string(it.maxItems));
    } else {
        msg.add<uint16_t>(0x00);
    }

    if (it.defense != 0) {
        if (it.extraDefense != 0) {
            msg.addString(fmt::format("{:d} {:+d}", it.defense, it.extraDefense));
        } else {
            msg.addString(std::to_string(it.defense));
        }
    } else {
        msg.add<uint16_t>(0x00);
    }

    if (!it.description.empty()) {
        const std::string& descr = it.description;
        if (descr.back() == '.') {
            msg.addString(std::string(descr, 0, descr.length() - 1));
        } else {
            msg.addString(descr);
        }
    } else {
        msg.add<uint16_t>(0x00);
    }

    if (it.decayTime != 0) {
        msg.addString(fmt::format("{:d} seconds", it.decayTime));
    } else {
        msg.add<uint16_t>(0x00);
    }

    if (it.abilities) {
        std::ostringstream ss;
        bool separator = false;

        for (size_t i = 0; i < COMBAT_COUNT; ++i) {
            if (it.abilities->absorbPercent[i] == 0) {
                continue;
            }

            if (separator) {
                ss << ", ";
            } else {
                separator = true;
            }

            ss << getCombatName(indexToCombatType(i)) << ' ' << std::showpos << it.abilities->absorbPercent[i] << std::noshowpos << '%';
        }

        msg.addString(ss.str());
    } else {
        msg.add<uint16_t>(0x00);
    }

    if (it.minReqLevel != 0) {
        msg.addString(std::to_string(it.minReqLevel));
    } else {
        msg.add<uint16_t>(0x00);
    }

    if (it.minReqMagicLevel != 0) {
        msg.addString(std::to_string(it.minReqMagicLevel));
    } else {
        msg.add<uint16_t>(0x00);
    }

    msg.addString(it.vocationString);

    msg.addString(it.runeSpellName);

    if (it.abilities) {
        std::ostringstream ss;
        bool separator = false;

        for (uint8_t i = SKILL_FIRST; i <= SKILL_LAST; i++) {
            if (!it.abilities->skills[i]) {
                continue;
            }

            if (separator) {
                ss << ", ";
            } else {
                separator = true;
            }

            ss << getSkillName(i) << ' ' << std::showpos << it.abilities->skills[i] << std::noshowpos;
        }

        if (it.abilities->stats[STAT_MAGICPOINTS] != 0) {
            if (separator) {
                ss << ", ";
            } else {
                separator = true;
            }

            ss << "magic level " << std::showpos << it.abilities->stats[STAT_MAGICPOINTS] << std::noshowpos;
        }

        if (it.abilities->speed != 0) {
            if (separator) {
                ss << ", ";
            }

            ss << "speed " << std::showpos << (it.abilities->speed >> 1) << std::noshowpos;
        }

        msg.addString(ss.str());
    } else {
        msg.add<uint16_t>(0x00);
    }

    if (it.charges != 0) {
        msg.addString(std::to_string(it.charges));
    } else {
        msg.add<uint16_t>(0x00);
    }

    std::string weaponName = getWeaponName(it.weaponType);

    if (it.slotPosition & SLOTP_TWO_HAND) {
        if (!weaponName.empty()) {
            weaponName += ", two-handed";
        } else {
            weaponName = "two-handed";
        }
    }

    msg.addString(weaponName);

    if (it.weight != 0) {
        std::ostringstream ss;
        if (it.weight < 10) {
            ss << "0.0" << it.weight;
        } else if (it.weight < 100) {
            ss << "0." << it.weight;
        } else {
            std::string weightString = std::to_string(it.weight);
            weightString.insert(weightString.end() - 2, '.');
            ss << weightString;
        }
        ss << " oz";
        msg.addString(ss.str());
    } else {
        msg.add<uint16_t>(0x00);
    }

    MarketStatistics* statistics = IOMarket::getInstance().getPurchaseStatistics(itemId);
    if (statistics) {
        msg.addByte(0x01);
        msg.add<uint32_t>(statistics->numTransactions);
        msg.add<uint32_t>(std::min<uint64_t>(std::numeric_limits<uint32_t>::max(), statistics->totalPrice));
        msg.add<uint32_t>(statistics->highestPrice);
        msg.add<uint32_t>(statistics->lowestPrice);
    } else {
        msg.addByte(0x00);
    }

    statistics = IOMarket::getInstance().getSaleStatistics(itemId);
    if (statistics) {
        msg.addByte(0x01);
        msg.add<uint32_t>(statistics->numTransactions);
        msg.add<uint32_t>(std::min<uint64_t>(std::numeric_limits<uint32_t>::max(), statistics->totalPrice));
        msg.add<uint32_t>(statistics->highestPrice);
        msg.add<uint32_t>(statistics->lowestPrice);
    } else {
        msg.addByte(0x00);
    }

    writeToOutputBuffer(msg);
}

void ProtocolGame::sendQuestLog()
{
    NetworkMessage msg;
    msg.addByte(0xF0);
    msg.add<uint16_t>(g_game.quests.getQuestsCount(player));

    for (const Quest& quest : g_game.quests.getQuests()) {
        if (quest.isStarted(player)) {
            msg.add<uint16_t>(quest.getID());
            msg.addString(quest.getName());
            msg.addByte(quest.isCompleted(player));
        }
    }

    writeToOutputBuffer(msg);
}

void ProtocolGame::sendQuestLine(const Quest* quest)
{
    NetworkMessage msg;
    msg.addByte(0xF1);
    msg.add<uint16_t>(quest->getID());
    msg.addByte(quest->getMissionsCount(player));

    for (const Mission& mission : quest->getMissions()) {
        if (mission.isStarted(player)) {
            msg.addString(mission.getName(player));
            msg.addString(mission.getDescription(player));
        }
    }

    writeToOutputBuffer(msg);
}

void ProtocolGame::sendTradeItemRequest(const std::string& traderName, const Item* item, bool ack)
{
    NetworkMessage msg;

    if (ack) {
        msg.addByte(0x7D);
    } else {
        msg.addByte(0x7E);
    }

    msg.addString(traderName);

    if (const Container* tradeContainer = item->getContainer()) {
        std::list<const Container*> listContainer {tradeContainer};
        std::list<const Item*> itemList {tradeContainer};
        while (!listContainer.empty()) {
            const Container* container = listContainer.front();
            listContainer.pop_front();

            for (Item* containerItem : container->getItemList()) {
                Container* tmpContainer = containerItem->getContainer();
                if (tmpContainer) {
                    listContainer.push_back(tmpContainer);
                }
                itemList.push_back(containerItem);
            }
        }

        msg.addByte(itemList.size());
        for (const Item* listItem : itemList) {
            msg.addItem(listItem);
        }
    } else {
        msg.addByte(0x01);
        msg.addItem(item);
    }
    writeToOutputBuffer(msg);
}

void ProtocolGame::sendCloseTrade()
{
    NetworkMessage msg;
    msg.addByte(0x7F);
    writeToOutputBuffer(msg);
}

void ProtocolGame::sendCloseContainer(uint8_t cid)
{
    NetworkMessage msg;
    msg.addByte(0x6F);
    msg.addByte(cid);
    writeToOutputBuffer(msg);
}

void ProtocolGame::sendCreatureTurn(const Creature* creature, uint32_t stackPos)
{
    if (!canSee(creature)) {
        return;
    }

    NetworkMessage msg;
    msg.addByte(0x6B);
    if (stackPos >= 10) {
        msg.add<uint16_t>(0xFFFF);
        msg.add<uint32_t>(creature->getID());
    } else {
        msg.addPosition(creature->getPosition());
        msg.addByte(stackPos);
    }

    msg.add<uint16_t>(0x63);
    msg.add<uint32_t>(creature->getID());
    msg.addByte(creature->getDirection());
    //msg.addByte(player->canWalkthroughEx(creature) ? 0x00 : 0x01);
    writeToOutputBuffer(msg);
}

void ProtocolGame::sendCreatureSay(const Creature* creature, SpeakClasses type, const std::string& text, const Position* pos/* = nullptr*/)
{
    NetworkMessage msg;
    msg.addByte(0xAA);

    static uint32_t statementId = 0;
    msg.add<uint32_t>(++statementId);

    msg.addString(creature->getName());

    //Add level only for players
    /*if (const Player* speaker = creature->getPlayer()) {
        msg.add<uint16_t>(speaker->getLevel());
    } else {
        msg.add<uint16_t>(0x00);
    }*/

    msg.addByte(type);
    if (pos) {
        msg.addPosition(*pos);
    } else {
        msg.addPosition(creature->getPosition());
    }

    msg.addString(text);
    writeToOutputBuffer(msg);
}

void ProtocolGame::sendToChannel(const Creature* creature, SpeakClasses type, const std::string& text, uint16_t channelId)
{
    NetworkMessage msg;
    msg.addByte(0xAA);

    static uint32_t statementId = 0;
    msg.add<uint32_t>(++statementId);
    if (!creature) {
        msg.add<uint32_t>(0x00);
    } else {
        msg.addString(creature->getName());
        //Add level only for players
        /*if (const Player* speaker = creature->getPlayer()) {
            msg.add<uint16_t>(speaker->getLevel());
        } else {
            msg.add<uint16_t>(0x00);
        }*/
    }

    msg.addByte(type);
    msg.add<uint16_t>(channelId);
    msg.addString(text);
    writeToOutputBuffer(msg);
}

void ProtocolGame::sendPrivateMessage(const Player* speaker, SpeakClasses type, const std::string& text)
{
    NetworkMessage msg;
    msg.addByte(0xAA);
    static uint32_t statementId = 0;
    msg.add<uint32_t>(++statementId);
    if (speaker) {
        msg.addString(speaker->getName());
        //msg.add<uint16_t>(speaker->getLevel());
    } else {
        msg.add<uint32_t>(0x00);
    }
    msg.addByte(type);
    msg.addString(text);
    writeToOutputBuffer(msg);
}

void ProtocolGame::sendCancelTarget()
{
    NetworkMessage msg;
    msg.addByte(0xA3);
    //msg.add<uint32_t>(0x00);
    writeToOutputBuffer(msg);
}

void ProtocolGame::sendChangeSpeed(const Creature* creature, uint32_t speed)
{
    NetworkMessage msg;
    msg.addByte(0x8F);
    msg.add<uint32_t>(creature->getID());
    //msg.add<uint16_t>(creature->getBaseSpeed() / 2);
    //msg.add<uint16_t>(speed / 2);
    msg.add<uint16_t>(speed);
    writeToOutputBuffer(msg);
}

void ProtocolGame::sendCancelWalk()
{
    NetworkMessage msg;
    msg.addByte(0xB5);
    msg.addByte(player->getDirection());
    writeToOutputBuffer(msg);
}

void ProtocolGame::sendSkills()
{
    NetworkMessage msg;
    AddPlayerSkills(msg);
    writeToOutputBuffer(msg);
}

void ProtocolGame::sendPing()
{
    NetworkMessage msg;
    //msg.addByte(0x1D);
    msg.addByte(0x1E);
    writeToOutputBuffer(msg);
}

void ProtocolGame::sendPingBack()
{
    NetworkMessage msg;
    msg.addByte(0x1E);
    writeToOutputBuffer(msg);
}

void ProtocolGame::sendDistanceShoot(const Position& from, const Position& to, uint8_t type)
{
    NetworkMessage msg;
    msg.addByte(0x85);
    msg.addPosition(from);
    msg.addPosition(to);
    msg.addByte(type);
    writeToOutputBuffer(msg);
}

void ProtocolGame::sendMagicEffect(const Position& pos, uint8_t type)
{
    if (!canSee(pos)) {
        return;
    }

    NetworkMessage msg;
    msg.addByte(0x83);
    msg.addPosition(pos);
    msg.addByte(type);
    writeToOutputBuffer(msg);
}

void ProtocolGame::sendCreatureHealth(const Creature* creature)
{
    NetworkMessage msg;
    msg.addByte(0x8C);
    msg.add<uint32_t>(creature->getID());

    if (creature->isHealthHidden()) {
        msg.addByte(0x00);
    } else {
        msg.addByte(std::ceil((static_cast<double>(creature->getHealth()) / std::max<int32_t>(creature->getMaxHealth(), 1)) * 100));
    }
    writeToOutputBuffer(msg);
}

void ProtocolGame::sendFYIBox(const std::string& message)
{
    NetworkMessage msg;
    msg.addByte(0x15);
    msg.addString(message);
    writeToOutputBuffer(msg);
}

//tile
void ProtocolGame::sendMapDescription(const Position& pos)
{
    NetworkMessage msg;
    msg.addByte(0x64);
    msg.addPosition(player->getPosition());
    GetMapDescription(pos.x - Map::maxClientViewportX, pos.y - Map::maxClientViewportY, pos.z, (Map::maxClientViewportX * 2) + 2, (Map::maxClientViewportY * 2) + 2, msg);
    writeToOutputBuffer(msg);
}

void ProtocolGame::sendAddTileItem(const Position& pos, uint32_t, const Item* item)
{
    if (!canSee(pos)) {
        return;
    }

    NetworkMessage msg;
    msg.addByte(0x6A);
    msg.addPosition(pos);
    //msg.addByte(stackpos);
    msg.addItem(item);
    writeToOutputBuffer(msg);
}

void ProtocolGame::sendUpdateTileItem(const Position& pos, uint32_t stackpos, const Item* item)
{
    if (!canSee(pos)) {
        return;
    }

    NetworkMessage msg;
    msg.addByte(0x6B);
    msg.addPosition(pos);
    msg.addByte(stackpos);
    msg.addItem(item);
    writeToOutputBuffer(msg);
}

void ProtocolGame::sendRemoveTileThing(const Position& pos, uint32_t stackpos)
{
    if (!canSee(pos)) {
        return;
    }

    NetworkMessage msg;
    RemoveTileThing(msg, pos, stackpos);
    writeToOutputBuffer(msg);
}

void ProtocolGame::sendUpdateTileCreature(const Position& pos, uint32_t stackpos, const Creature* creature)
{
    if (!canSee(pos)) {
        return;
    }

    NetworkMessage msg;
    msg.addByte(0x6B);
    msg.addPosition(pos);
    msg.addByte(stackpos);

    bool known;
    uint32_t removedKnown;
    checkCreatureAsKnown(creature->getID(), known, removedKnown);
    AddCreature(msg, creature, false, removedKnown);

    writeToOutputBuffer(msg);
}

void ProtocolGame::sendRemoveTileCreature(const Creature* creature, const Position& pos, uint32_t stackpos)
{
    if (stackpos < 10) {
        if (!canSee(pos)) {
            return;
        }

        NetworkMessage msg;
        RemoveTileThing(msg, pos, stackpos);
        writeToOutputBuffer(msg);
        return;
    }

    NetworkMessage msg;
    msg.addByte(0x6C);
    msg.add<uint16_t>(0xFFFF);
    msg.add<uint32_t>(creature->getID());
    writeToOutputBuffer(msg);
}

void ProtocolGame::sendUpdateTile(const Tile* tile, const Position& pos)
{
    if (!canSee(pos)) {
        return;
    }

    NetworkMessage msg;
    msg.addByte(0x69);
    msg.addPosition(pos);

    if (tile) {
        GetTileDescription(tile, msg);
        msg.addByte(0x00);
        msg.addByte(0xFF);
    } else {
        msg.addByte(0x01);
        msg.addByte(0xFF);
    }

    writeToOutputBuffer(msg);
}

void ProtocolGame::sendPendingStateEntered()
{
    NetworkMessage msg;
    msg.addByte(0x0A);
    writeToOutputBuffer(msg);
}

void ProtocolGame::sendEnterWorld()
{
    NetworkMessage msg;
    msg.addByte(0x0F);
    writeToOutputBuffer(msg);
}

void ProtocolGame::sendFightModes()
{
    NetworkMessage msg;
    msg.addByte(0xA7);
    msg.addByte(player->fightMode);
    msg.addByte(player->chaseMode);
    msg.addByte(player->secureMode);
    //msg.addByte(PVP_MODE_DOVE);
    writeToOutputBuffer(msg);
}

void ProtocolGame::sendAddCreature(const Creature* creature, const Position& pos, int32_t stackpos, bool isLogin)
{
    if (!canSee(pos)) {
        return;
    }

    if (creature != player) {
        // stack pos is always real index now, so it can exceed the limit
        // if stack pos exceeds the limit, we need to refresh the tile instead
        // 1. this is a rare case, and is only triggered by forcing summon in a position
        // 2. since no stackpos will be send to the client about that creature, removing
        //    it must be done with its id if its stackpos remains >= 10. this is done to
        //    add creatures to battle list instead of rendering on screen
        /*if (stackpos >= 10) {
            // @todo: should we avoid this check?
            if (const Tile* tile = creature->getTile()) {
                sendUpdateTile(tile, pos);
            }
        } else*/
        if (stackpos != -1) {
            // if stackpos is -1, the client will automatically detect it
            NetworkMessage msg;
            msg.addByte(0x6A);
            msg.addPosition(pos);
            //msg.addByte(stackpos);

            bool known;
            uint32_t removedKnown;
            checkCreatureAsKnown(creature->getID(), known, removedKnown);
            AddCreature(msg, creature, known, removedKnown);
            writeToOutputBuffer(msg);
        }

        if (isLogin) {
            sendMagicEffect(pos, CONST_ME_TELEPORT);
        }
        return;
    }

    NetworkMessage msg;
    //msg.addByte(0x17);
    msg.addByte(0x0A);

    msg.add<uint32_t>(player->getID());
    //msg.add<uint16_t>(0x32); // beat duration (50)
    msg.addByte(0x32); // beat duration (50)
    msg.addByte(0x00);

    /*msg.addDouble(Creature::speedA, 3);
    msg.addDouble(Creature::speedB, 3);
    msg.addDouble(Creature::speedC, 3);*/

    // can report bugs?
    if (player->getAccountType() >= ACCOUNT_TYPE_TUTOR) {
        msg.addByte(0x01);
    } else {
        msg.addByte(0x00);
    }

    //msg.addByte(0x00); // can change pvp framing option
    //msg.addByte(0x00); // expert mode button enabled

    //msg.add<uint16_t>(0x00); // URL (string) to ingame store images
    //msg.add<uint16_t>(25); // premium coin package size

    if (player->getAccountType() >= ACCOUNT_TYPE_GAMEMASTER) {
        msg.addByte(0x0B);
        for (uint8_t i = 0; i < 32; i++) {
            msg.addByte(0xFF);
        }
    }

    writeToOutputBuffer(msg);

    //sendPendingStateEntered();
    //sendEnterWorld();
    sendMapDescription(pos);

    if (isLogin) {
        sendMagicEffect(pos, CONST_ME_TELEPORT);
    }

    for (int i = CONST_SLOT_FIRST; i <= CONST_SLOT_LAST; ++i) {
        sendInventoryItem(static_cast<slots_t>(i), player->getInventoryItem(static_cast<slots_t>(i)));
    }

    //sendInventoryItem(CONST_SLOT_STORE_INBOX, player->getStoreInbox()->getItem());

    sendStats();
    sendSkills();

    //gameworld light-settings
    sendWorldLight(g_game.getWorldLightInfo());

    //player light level
    sendCreatureLight(creature);

    sendVIPEntries();

    //sendBasicData();
    player->sendIcons();
}

void ProtocolGame::sendMoveCreature(const Creature* creature, const Position& newPos, int32_t newStackPos, const Position& oldPos, int32_t oldStackPos, bool teleport)
{
    if (creature == player) {
        if (teleport) {
            sendRemoveTileCreature(creature, oldPos, oldStackPos);
            sendMapDescription(newPos);
        } else {
            NetworkMessage msg;
            if (oldPos.z == 7 && newPos.z >= 8) {
                RemoveTileCreature(msg, creature, oldPos, oldStackPos);
            } else {
                msg.addByte(0x6D);
                if (oldStackPos < 10) {
                    msg.addPosition(oldPos);
                    msg.addByte(oldStackPos);
                } else {
                    msg.add<uint16_t>(0xFFFF);
                    msg.add<uint32_t>(creature->getID());
                }
                msg.addPosition(newPos);
            }

            if (newPos.z > oldPos.z) {
                MoveDownCreature(msg, creature, newPos, oldPos);
            } else if (newPos.z < oldPos.z) {
                MoveUpCreature(msg, creature, newPos, oldPos);
            }

            if (oldPos.y > newPos.y) { // north, for old x
                msg.addByte(0x65);
                GetMapDescription(oldPos.x - Map::maxClientViewportX, newPos.y - Map::maxClientViewportY, newPos.z, (Map::maxClientViewportX * 2) + 2, 1, msg);
            } else if (oldPos.y < newPos.y) { // south, for old x
                msg.addByte(0x67);
                GetMapDescription(oldPos.x - Map::maxClientViewportX, newPos.y + (Map::maxClientViewportY + 1), newPos.z, (Map::maxClientViewportX * 2) + 2, 1, msg);
            }

            if (oldPos.x < newPos.x) { // east, [with new y]
                msg.addByte(0x66);
                GetMapDescription(newPos.x + (Map::maxClientViewportX + 1), newPos.y - Map::maxClientViewportY, newPos.z, 1, (Map::maxClientViewportY * 2) + 2, msg);
            } else if (oldPos.x > newPos.x) { // west, [with new y]
                msg.addByte(0x68);
                GetMapDescription(newPos.x - Map::maxClientViewportX, newPos.y - Map::maxClientViewportY, newPos.z, 1, (Map::maxClientViewportY * 2) + 2, msg);
            }
            writeToOutputBuffer(msg);
        }
    } else if (canSee(oldPos) && canSee(creature->getPosition())) {
        if (teleport || (oldPos.z == 7 && newPos.z >= 8)) {
            sendRemoveTileCreature(creature, oldPos, oldStackPos);
            sendAddCreature(creature, newPos, newStackPos, false);
        } else {
            NetworkMessage msg;
            msg.addByte(0x6D);
            if (oldStackPos < 10) {
                msg.addPosition(oldPos);
                msg.addByte(oldStackPos);
            } else {
                msg.add<uint16_t>(0xFFFF);
                msg.add<uint32_t>(creature->getID());
            }
            msg.addPosition(creature->getPosition());
            writeToOutputBuffer(msg);
        }
    } else if (canSee(oldPos)) {
        sendRemoveTileCreature(creature, oldPos, oldStackPos);
    } else if (canSee(creature->getPosition())) {
        sendAddCreature(creature, newPos, newStackPos, false);
    }
}

void ProtocolGame::sendInventoryItem(slots_t slot, const Item* item)
{
    NetworkMessage msg;
    if (item) {
        msg.addByte(0x78);
        msg.addByte(slot);
        msg.addItem(item);
    } else {
        msg.addByte(0x79);
        msg.addByte(slot);
    }
    writeToOutputBuffer(msg);
}

void ProtocolGame::sendItems()
{
    NetworkMessage msg;
    msg.addByte(0xF5);

    const std::vector<uint16_t>& inventory = Item::items.getInventory();
    msg.add<uint16_t>(inventory.size() + 11);
    for (uint16_t i = 1; i <= 11; i++) {
        msg.add<uint16_t>(i);
        msg.addByte(0); //always 0
        msg.add<uint16_t>(1); // always 1
    }

    for (auto clientId : inventory) {
        msg.add<uint16_t>(clientId);
        msg.addByte(0); //always 0
        msg.add<uint16_t>(1);
    }

    writeToOutputBuffer(msg);
}

void ProtocolGame::sendAddContainerItem(uint8_t cid, uint16_t, const Item* item)
{
    NetworkMessage msg;
    msg.addByte(0x70);
    msg.addByte(cid);
    //msg.add<uint16_t>(slot);
    msg.addItem(item);
    writeToOutputBuffer(msg);
}

void ProtocolGame::sendUpdateContainerItem(uint8_t cid, uint16_t slot, const Item* item)
{
    NetworkMessage msg;
    msg.addByte(0x71);
    msg.addByte(cid);
    //msg.add<uint16_t>(slot);
    msg.addByte(slot);
    msg.addItem(item);
    writeToOutputBuffer(msg);
}

void ProtocolGame::sendRemoveContainerItem(uint8_t cid, uint16_t slot, const Item*)
{
    NetworkMessage msg;
    msg.addByte(0x72);
    msg.addByte(cid);
    //msg.add<uint16_t>(slot);
    /*if (lastItem) {
        msg.addItem(lastItem);
    } else {
        msg.add<uint16_t>(0x00);
    }*/
    msg.addByte(slot);
    writeToOutputBuffer(msg);
}

void ProtocolGame::sendTextWindow(uint32_t windowTextId, Item* item, uint16_t maxlen, bool canWrite)
{
    NetworkMessage msg;
    msg.addByte(0x96);
    msg.add<uint32_t>(windowTextId);
    msg.addItem(item);

    if (canWrite) {
        msg.add<uint16_t>(maxlen);
        msg.addString(item->getText());
    } else {
        const std::string& text = item->getText();
        msg.add<uint16_t>(text.size());
        msg.addString(text);
    }

    msg.addString(item->getWriter());
    /*if (!writer.empty()) {
        msg.addString(writer);
    } else {
        msg.add<uint16_t>(0x00);
    }*/

    /*time_t writtenDate = item->getDate();
    if (writtenDate != 0) {
        msg.addString(formatDateShort(writtenDate));
    } else {
        msg.add<uint16_t>(0x00);
    }*/

    writeToOutputBuffer(msg);
}

void ProtocolGame::sendTextWindow(uint32_t windowTextId, uint32_t itemId, const std::string& text)
{
    NetworkMessage msg;
    msg.addByte(0x96);
    msg.add<uint32_t>(windowTextId);
    msg.addItem(itemId, 1);
    msg.add<uint16_t>(text.size());
    msg.addString(text);
    //msg.add<uint16_t>(0x00);
    //msg.add<uint16_t>(0x00);
    msg.addString("");
    writeToOutputBuffer(msg);
}

void ProtocolGame::sendHouseWindow(uint32_t windowTextId, const std::string& text)
{
    NetworkMessage msg;
    msg.addByte(0x97);
    msg.addByte(0x00);
    msg.add<uint32_t>(windowTextId);
    msg.addString(text);
    writeToOutputBuffer(msg);
}

void ProtocolGame::sendOutfitWindow()
{
    const auto& outfits = Outfits::getInstance().getOutfits(player->getSex());
    if (outfits.size() == 0) {
        return;
    }

    NetworkMessage msg;
    msg.addByte(0xC8);

    Outfit_t currentOutfit = player->getDefaultOutfit();
    if (currentOutfit.lookType == 0) {
        Outfit_t newOutfit;
        newOutfit.lookType = outfits.front().lookType;
        currentOutfit = newOutfit;
    }

    /*Mount* currentMount = g_game.mounts.getMountByID(player->getCurrentMount());
    if (currentMount) {
        currentOutfit.lookMount = currentMount->clientId;
    }*/

    AddOutfit(msg, currentOutfit);

    std::vector<ProtocolOutfit> protocolOutfits;
    if (player->isAccessPlayer()) {
        static const std::string gamemasterOutfitName = "Gamemaster";
        protocolOutfits.emplace_back(gamemasterOutfitName, 75, 0);
    }

    protocolOutfits.reserve(outfits.size());
    for (const Outfit& outfit : outfits) {
        uint8_t addons;
        if (!player->getOutfitAddons(outfit, addons)) {
            continue;
        }

        protocolOutfits.emplace_back(outfit.name, outfit.lookType, addons);
        if (protocolOutfits.size() == std::numeric_limits<uint8_t>::max()) { // Game client currently doesn't allow more than 255 outfits
            break;
        }
    }

    msg.addByte(protocolOutfits.size());
    for (const ProtocolOutfit& outfit : protocolOutfits) {
        msg.add<uint16_t>(outfit.lookType);
        msg.addString(outfit.name);
        msg.addByte(outfit.addons);
    }
    /*
    std::vector<const Mount*> mounts;
    for (const Mount& mount : g_game.mounts.getMounts()) {
        if (player->hasMount(&mount)) {
            mounts.push_back(&mount);
        }
    }

    msg.addByte(mounts.size());
    for (const Mount* mount : mounts) {
        msg.add<uint16_t>(mount->clientId);
        msg.addString(mount->name);
    }*/

    switch (player->getSex()) {
        case PLAYERSEX_FEMALE: {
            msg.add<uint16_t>(136);
            if (player->isPremium()) {
                msg.add<uint16_t>(142);
            } else {
                msg.add<uint16_t>(139);
            }

            break;
        }

        case PLAYERSEX_MALE: {
            msg.add<uint16_t>(128);
            if (player->isPremium()) {
                msg.add<uint16_t>(134);
            } else {
                msg.add<uint16_t>(131);
            }

            break;
        }

        default: {
            msg.add<uint16_t>(128);
            msg.add<uint16_t>(134);
        }
    }

    writeToOutputBuffer(msg);
}

void ProtocolGame::sendUpdatedVIPStatus(uint32_t guid, VipStatus_t newStatus)
{
    NetworkMessage msg;
    //msg.addByte(0xD3);
    msg.addByte(newStatus ? 0xD3 : 0xD4);
    msg.add<uint32_t>(guid);
    //msg.addByte(newStatus);
    writeToOutputBuffer(msg);
}

void ProtocolGame::sendVIP(uint32_t guid, const std::string& name, const std::string&, uint32_t, bool, VipStatus_t status)
{
    NetworkMessage msg;
    msg.addByte(0xD2);
    msg.add<uint32_t>(guid);
    msg.addString(name);
    //msg.addString(description);
    //msg.add<uint32_t>(std::min<uint32_t>(10, icon));
    //msg.addByte(notify ? 0x01 : 0x00);
    msg.addByte(status);
    writeToOutputBuffer(msg);
}

void ProtocolGame::sendVIPEntries()
{
    const std::forward_list<VIPEntry>& vipEntries = IOLoginData::getVIPEntries(player->getAccount());

    for (const VIPEntry& entry : vipEntries) {
        VipStatus_t vipStatus = VIPSTATUS_ONLINE;

        Player* vipPlayer = g_game.getPlayerByGUID(entry.guid);

        if (!vipPlayer || !player->canSeeCreature(vipPlayer)) {
            vipStatus = VIPSTATUS_OFFLINE;
        }

        sendVIP(entry.guid, entry.name, entry.description, entry.icon, entry.notify, vipStatus);
    }
}

void ProtocolGame::sendSpellCooldown(uint8_t spellId, uint32_t time)
{
    NetworkMessage msg;
    msg.addByte(0xA4);
    msg.addByte(spellId);
    msg.add<uint32_t>(time);
    writeToOutputBuffer(msg);
}

void ProtocolGame::sendSpellGroupCooldown(SpellGroup_t groupId, uint32_t time)
{
    NetworkMessage msg;
    msg.addByte(0xA5);
    msg.addByte(groupId);
    msg.add<uint32_t>(time);
    writeToOutputBuffer(msg);
}

void ProtocolGame::sendModalWindow(const ModalWindow& modalWindow)
{
    NetworkMessage msg;
    msg.addByte(0xFA);

    msg.add<uint32_t>(modalWindow.id);
    msg.addString(modalWindow.title);
    msg.addString(modalWindow.message);

    msg.addByte(modalWindow.buttons.size());
    for (const auto& it : modalWindow.buttons) {
        msg.addString(it.first);
        msg.addByte(it.second);
    }

    msg.addByte(modalWindow.choices.size());
    for (const auto& it : modalWindow.choices) {
        msg.addString(it.first);
        msg.addByte(it.second);
    }

    msg.addByte(modalWindow.defaultEscapeButton);
    msg.addByte(modalWindow.defaultEnterButton);
    msg.addByte(modalWindow.priority ? 0x01 : 0x00);

    writeToOutputBuffer(msg);
}

////////////// Add common messages
void ProtocolGame::AddCreature(NetworkMessage& msg, const Creature* creature, bool known, uint32_t remove)
{
    //CreatureType_t creatureType = creature->getType();

    const Player* otherPlayer = creature->getPlayer();

    if (known) {
        msg.add<uint16_t>(0x62);
        msg.add<uint32_t>(creature->getID());
    } else {
        msg.add<uint16_t>(0x61);
        msg.add<uint32_t>(remove);
        msg.add<uint32_t>(creature->getID());
        //msg.addByte(creatureType);
        msg.addString(creature->getName());
    }

    if (creature->isHealthHidden()) {
        msg.addByte(0x00);
    } else {
        msg.addByte(std::ceil((static_cast<double>(creature->getHealth()) / std::max<int32_t>(creature->getMaxHealth(), 1)) * 100));
    }

    msg.addByte(creature->getDirection());

    if (!creature->isInGhostMode() && !creature->isInvisible()) {
        AddOutfit(msg, creature->getCurrentOutfit());
    } else {
        static Outfit_t outfit;
        AddOutfit(msg, outfit);
    }

    LightInfo lightInfo = creature->getCreatureLight();
    msg.addByte(player->isAccessPlayer() ? 0xFF : lightInfo.level);
    msg.addByte(lightInfo.color);

    //msg.add<uint16_t>(creature->getStepSpeed() / 2);
    msg.add<uint16_t>(creature->getStepSpeed());

    msg.addByte(player->getSkullClient(creature));
    msg.addByte(player->getPartyShield(otherPlayer));

    /*if (!known) {
        msg.addByte(player->getGuildEmblem(otherPlayer));
    }

    if (creatureType == CREATURETYPE_MONSTER) {
        const Creature* master = creature->getMaster();
        if (master) {
            const Player* masterPlayer = master->getPlayer();
            if (masterPlayer) {
                if (masterPlayer == player) {
                    creatureType = CREATURETYPE_SUMMON_OWN;
                } else {
                    creatureType = CREATURETYPE_SUMMON_OTHERS;
                }
            }
        }
    }

    msg.addByte(creatureType); // Type (for summons)
    msg.addByte(creature->getSpeechBubble());
    msg.addByte(0xFF); // MARK_UNMARKED


    if (otherPlayer) {
        msg.add<uint16_t>(otherPlayer->getHelpers());
    } else {
        msg.add<uint16_t>(0x00);
    }

    msg.addByte(player->canWalkthroughEx(creature) ? 0x00 : 0x01);
    */
}

void ProtocolGame::AddPlayerStats(NetworkMessage& msg)
{
    msg.addByte(0xA0);

    msg.add<uint16_t>(std::min<int32_t>(player->getHealth(), std::numeric_limits<uint16_t>::max()));
    msg.add<uint16_t>(std::min<int32_t>(player->getMaxHealth(), std::numeric_limits<uint16_t>::max()));

    //msg.add<uint32_t>(player->getFreeCapacity());
    //msg.add<uint32_t>(player->getCapacity());
    msg.add<uint16_t>(player->getFreeCapacity() / 100);

    //msg.add<uint64_t>(player->getExperience());
    msg.add<uint32_t>(std::min<uint32_t>(player->getExperience(), 0x7FFFFFFF)); // tibia client debugs if value is higher than 0x7FFFFFFF

    msg.add<uint16_t>(player->getLevel());
    msg.addByte(player->getLevelPercent());

    /*msg.add<uint16_t>(100); // base xp gain rate
    msg.add<uint16_t>(0); // xp voucher
    msg.add<uint16_t>(0); // low level bonus
    msg.add<uint16_t>(0); // xp boost
    msg.add<uint16_t>(100); // stamina multiplier (100 = x1.0)
    */

    msg.add<uint16_t>(std::min<int32_t>(player->getMana(), std::numeric_limits<uint16_t>::max()));
    msg.add<uint16_t>(std::min<int32_t>(player->getMaxMana(), std::numeric_limits<uint16_t>::max()));

    msg.addByte(std::min<uint32_t>(player->getMagicLevel(), std::numeric_limits<uint8_t>::max()));
    //msg.addByte(std::min<uint32_t>(player->getBaseMagicLevel(), std::numeric_limits<uint8_t>::max()));
    msg.addByte(player->getMagicLevelPercent());

    msg.addByte(player->getSoul());

    /*msg.add<uint16_t>(player->getStaminaMinutes());

    msg.add<uint16_t>(player->getBaseSpeed() / 2);

    Condition* condition = player->getCondition(CONDITION_REGENERATION, CONDITIONID_DEFAULT);
    msg.add<uint16_t>(condition ? condition->getTicks() / 1000 : 0x00);

    msg.add<uint16_t>(player->getOfflineTrainingTime() / 60 / 1000);

    msg.add<uint16_t>(0); // xp boost time (seconds)
    msg.addByte(0); // enables exp boost in the store
    */
}

void ProtocolGame::AddPlayerSkills(NetworkMessage& msg)
{
    msg.addByte(0xA1);

    for (uint8_t i = SKILL_FIRST; i <= SKILL_LAST; ++i) {
        //msg.add<uint16_t>(std::min<int32_t>(player->getSkillLevel(i), std::numeric_limits<uint16_t>::max()));
        //msg.add<uint16_t>(player->getBaseSkill(i));
        msg.addByte(std::min<int32_t>(player->getSkillLevel(i), std::numeric_limits<uint8_t>::max()));
        msg.addByte(player->getSkillPercent(i));
    }

    /*for (uint8_t i = SPECIALSKILL_FIRST; i <= SPECIALSKILL_LAST; ++i) {
        msg.add<uint16_t>(std::min<int32_t>(100, player->varSpecialSkills[i]));
        msg.add<uint16_t>(0);
    }*/
}

void ProtocolGame::AddOutfit(NetworkMessage& msg, const Outfit_t& outfit)
{
    msg.add<uint16_t>(outfit.lookType);

    if (outfit.lookType != 0) {
        msg.addByte(outfit.lookHead);
        msg.addByte(outfit.lookBody);
        msg.addByte(outfit.lookLegs);
        msg.addByte(outfit.lookFeet);
        //msg.addByte(outfit.lookAddons);
    } else {
        msg.addItemId(outfit.lookTypeEx);
    }

    //msg.add<uint16_t>(outfit.lookMount);
}

void ProtocolGame::AddWorldLight(NetworkMessage& msg, LightInfo lightInfo)
{
    msg.addByte(0x82);
    msg.addByte((player->isAccessPlayer() ? 0xFF : lightInfo.level));
    msg.addByte(lightInfo.color);
}

void ProtocolGame::AddCreatureLight(NetworkMessage& msg, const Creature* creature)
{
    LightInfo lightInfo = creature->getCreatureLight();

    msg.addByte(0x8D);
    msg.add<uint32_t>(creature->getID());
    msg.addByte((player->isAccessPlayer() ? 0xFF : lightInfo.level));
    msg.addByte(lightInfo.color);
}

//tile
void ProtocolGame::RemoveTileThing(NetworkMessage& msg, const Position& pos, uint32_t stackpos)
{
    if (stackpos >= 10) {
        return;
    }

    msg.addByte(0x6C);
    msg.addPosition(pos);
    msg.addByte(stackpos);
}

void ProtocolGame::RemoveTileCreature(NetworkMessage& msg, const Creature* creature, const Position& pos, uint32_t stackpos)
{
    if (stackpos < 10) {
        RemoveTileThing(msg, pos, stackpos);
        return;
    }

    msg.addByte(0x6C);
    msg.add<uint16_t>(0xFFFF);
    msg.add<uint32_t>(creature->getID());
}

void ProtocolGame::MoveUpCreature(NetworkMessage& msg, const Creature* creature, const Position& newPos, const Position& oldPos)
{
    if (creature != player) {
        return;
    }

    //floor change up
    msg.addByte(0xBE);

    //going to surface
    if (newPos.z == 7) {
        int32_t skip = -1;

        // floor 7 and 6 already set
        for (int i = 5; i >= 0; --i) {
            GetFloorDescription(msg, oldPos.x - Map::maxClientViewportX, oldPos.y - Map::maxClientViewportY, i, (Map::maxClientViewportX * 2) + 2, (Map::maxClientViewportY * 2) + 2, 8 - i, skip);
        }
        if (skip >= 0) {
            msg.addByte(skip);
            msg.addByte(0xFF);
        }
    }
    //underground, going one floor up (still underground)
    else if (newPos.z > 7) {
        int32_t skip = -1;
        GetFloorDescription(msg, oldPos.x - Map::maxClientViewportX, oldPos.y - Map::maxClientViewportY, oldPos.getZ() - 3, (Map::maxClientViewportX * 2) + 2, (Map::maxClientViewportY * 2) + 2, 3, skip);

        if (skip >= 0) {
            msg.addByte(skip);
            msg.addByte(0xFF);
        }
    }

    //moving up a floor up makes us out of sync
    //west
    msg.addByte(0x68);
    GetMapDescription(oldPos.x - Map::maxClientViewportX, oldPos.y - (Map::maxClientViewportY - 1), newPos.z, 1, (Map::maxClientViewportY * 2) + 2, msg);

    //north
    msg.addByte(0x65);
    GetMapDescription(oldPos.x - Map::maxClientViewportX, oldPos.y - Map::maxClientViewportY, newPos.z, (Map::maxClientViewportX * 2) + 2, 1, msg);
}

void ProtocolGame::MoveDownCreature(NetworkMessage& msg, const Creature* creature, const Position& newPos, const Position& oldPos)
{
    if (creature != player) {
        return;
    }

    //floor change down
    msg.addByte(0xBF);

    //going from surface to underground
    if (newPos.z == 8) {
        int32_t skip = -1;

        for (int i = 0; i < 3; ++i) {
            GetFloorDescription(msg, oldPos.x - Map::maxClientViewportX, oldPos.y - Map::maxClientViewportY, newPos.z + i, (Map::maxClientViewportX * 2) + 2, (Map::maxClientViewportY * 2) + 2, -i - 1, skip);
        }
        if (skip >= 0) {
            msg.addByte(skip);
            msg.addByte(0xFF);
        }
    }
    //going further down
    else if (newPos.z > oldPos.z && newPos.z > 8 && newPos.z < 14) {
        int32_t skip = -1;
        GetFloorDescription(msg, oldPos.x - Map::maxClientViewportX, oldPos.y - Map::maxClientViewportY, newPos.z + 2, (Map::maxClientViewportX * 2) + 2, (Map::maxClientViewportY * 2) + 2, -3, skip);

        if (skip >= 0) {
            msg.addByte(skip);
            msg.addByte(0xFF);
        }
    }

    //moving down a floor makes us out of sync
    //east
    msg.addByte(0x66);
    GetMapDescription(oldPos.x + (Map::maxClientViewportX + 1), oldPos.y - (Map::maxClientViewportY + 1), newPos.z, 1, (Map::maxClientViewportY * 2) + 2, msg);

    //south
    msg.addByte(0x67);
    GetMapDescription(oldPos.x - Map::maxClientViewportX, oldPos.y + (Map::maxClientViewportY + 1), newPos.z, (Map::maxClientViewportX * 2) + 2, 1, msg);
}

void ProtocolGame::AddShopItem(NetworkMessage& msg, const ShopInfo& item)
{
    const ItemType& it = Item::items[item.itemId];
    msg.add<uint16_t>(it.clientId);

    if (it.isSplash() || it.isFluidContainer()) {
        msg.addByte(serverFluidToClient(item.subType));
    } else {
        msg.addByte(0x00);
    }

    msg.addString(item.realName);
    msg.add<uint32_t>(it.weight);
    msg.add<uint32_t>(item.buyPrice);
    msg.add<uint32_t>(item.sellPrice);
}

void ProtocolGame::parseExtendedOpcode(NetworkMessage& msg)
{
    uint8_t opcode = msg.getByte();
    const std::string& buffer = msg.getString();

    // process additional opcodes via lua script event
    addGameTask(&Game::parsePlayerExtendedOpcode, player->getID(), opcode, buffer);
}