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protocolgame.cpp
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protocolgame.cpp
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/**
* 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);