C++ MessageIn::getUnreadLength方法代码示例

void ItemHandler::handleMessage(MessageIn &msg)
{
    switch (msg.getId())
    {
    case GPMSG_ITEM_APPEAR:
    case GPMSG_ITEMS:
    {
        while (msg.getUnreadLength())
        {
            int itemId = msg.readInt16();
            int x = msg.readInt16();
            int y = msg.readInt16();
            int id = (x << 16) | y; // dummy id

            if (itemId)
            {
                floorItemManager->create(id, itemId, x / 32, y / 32, engine->getCurrentMap());
            }
            else if (FloorItem *item = floorItemManager->findById(id))
            {
                floorItemManager->destroy(item);
            }
        }
    }
    break;
    }
}

void ChatHandler::handleEnterChannelResponse(MessageIn &msg)
{
    if(msg.readInt8() == ERRMSG_OK)
    {
        short channelId = msg.readInt16();
        std::string channelName = msg.readString();
        std::string announcement = msg.readString();
        Channel *channel = new Channel(channelId, channelName, announcement);
        channelManager->addChannel(channel);
        ChatTab *tab = channel->getTab();
        tab->chatLog(strprintf(_("Topic: %s"), announcement.c_str()), BY_CHANNEL);

        std::string user;
        std::string userModes;
        tab->chatLog(_("Players in this channel:"), BY_CHANNEL);
        while(msg.getUnreadLength())
        {
            user = msg.readString();
            if (user == "")
                return;
            userModes = msg.readString();
            if (userModes.find('o') != std::string::npos)
            {
                user = "@" + user;
            }
            tab->chatLog(user, BY_CHANNEL);
        }

    }
    else
    {
        localChatTab->chatLog(_("Error joining channel."), BY_SERVER);
    }
}

void InventoryHandler::handleMessage(MessageIn &msg)
{
    switch (msg.getId())
    {
        case GPMSG_INVENTORY_FULL:
            player_node->clearInventory();
            // no break!

        case GPMSG_INVENTORY:
            while (msg.getUnreadLength())
            {
                int slot = msg.readInt8();
                if (slot == 255)
                {
                    player_node->setMoney(msg.readInt32());
                    continue;
                }

                int id = msg.readInt16();
                if (slot < EQUIPMENT_SIZE)
                {
                    player_node->mEquipment->setEquipment(slot, id);
                }
                else if (slot >= 32 && slot < 32 + INVENTORY_SIZE)
                {
                    int amount = id ? msg.readInt8() : 0;
                    player_node->setInvItem(slot - 32, id, amount);
                }
            };
            break;
    }
}

void ItemHandler::handleMessage(MessageIn &msg)
{
    switch (msg.getId())
    {
        case GPMSG_ITEM_APPEAR:
        case GPMSG_ITEMS:
        {
            while (msg.getUnreadLength())
            {
                int itemId = msg.readInt16();
                int x = msg.readInt16();
                int y = msg.readInt16();
                int id = (x << 16) | y; // dummy id

                if (itemId)
                {
                    actorSpriteManager->createItem(id, itemId, Vector(x, y));
                }
                else if (FloorItem *item = actorSpriteManager->findItem(id))
                {
                    actorSpriteManager->destroy(item);
                }
            }
        } break;
    }
}

void EffectHandler::handleShake(MessageIn &msg)
{
    int16_t intensityX = 0;
    int16_t intensityY = 0;
    float decay;
    int duration;

    switch (msg.getUnreadLength())
    {
    case 4:
        intensityX =  msg.readInt16();
        intensityY =  msg.readInt16();
        viewport->shakeScreen(intensityX, intensityY);
        break;
    case 6:
        intensityX =  msg.readInt16();
        intensityY =  msg.readInt16();
        decay =  msg.readInt16() / 10000.0f;
        viewport->shakeScreen(intensityX, intensityY, decay);
        break;
    case 8:
        intensityX =  msg.readInt16();
        intensityY =  msg.readInt16();
        decay =  msg.readInt16() / 10000.0f;
        duration =  msg.readInt16();
        viewport->shakeScreen(intensityX, intensityY, decay, duration);
        break;
    default:
        logger->log("Warning: Received GPMSG_SHAKE message with unexpected length of %d bytes", msg.getUnreadLength());
    }
}

void LoginHandler::readUpdateHost(MessageIn &msg)
{
    // Set the update host when included in the message
    if (msg.getUnreadLength() > 0)
    {
        mLoginData->updateHost = msg.readString();
    }
}

void BuySellHandler::handleMessage(MessageIn &msg)
{
    Being *being = beingManager->findBeing(msg.readInt16());
    if (!being || being->getType() != Being::NPC)
    {
        return;
    }

    current_npc = being->getId();

    switch (msg.getId())
    {
        case GPMSG_NPC_BUY:
            buyDialog->reset();
            buyDialog->setMoney(player_node->getMoney());
            buyDialog->setVisible(true);

            while (msg.getUnreadLength())
            {
                int itemId = msg.readInt16();
                int amount = msg.readInt16();
                int value = msg.readInt16();
                buyDialog->addItem(itemId, amount, value);
            }
            break;

        case GPMSG_NPC_SELL:
            sellDialog->setMoney(player_node->getMoney());
            sellDialog->reset();
            sellDialog->setVisible(true);

            while (msg.getUnreadLength())
            {
                int itemId = msg.readInt16();
                int amount = msg.readInt16();
                int value = msg.readInt16();
                sellDialog->addItem(new Item(itemId, amount, false), value);
            }
            break;
    }
}

void GameServerHandler::syncDatabase(MessageIn &msg)
{
    // It is safe to perform the following updates in a transaction
    dal::PerformTransaction transaction(storage->database());

    while (msg.getUnreadLength() > 0)
    {
        int msgType = msg.readInt8();
        switch (msgType)
        {
            case SYNC_CHARACTER_POINTS:
            {
                LOG_DEBUG("received SYNC_CHARACTER_POINTS");
                int charId = msg.readInt32();
                int charPoints = msg.readInt32();
                int corrPoints = msg.readInt32();
                storage->updateCharacterPoints(charId, charPoints, corrPoints);
            } break;

            case SYNC_CHARACTER_ATTRIBUTE:
            {
                LOG_DEBUG("received SYNC_CHARACTER_ATTRIBUTE");
                int    charId = msg.readInt32();
                int    attrId = msg.readInt32();
                double base   = msg.readDouble();
                double mod    = msg.readDouble();
                storage->updateAttribute(charId, attrId, base, mod);
            } break;

            case SYNC_CHARACTER_SKILL:
            {
                LOG_DEBUG("received SYNC_CHARACTER_SKILL");
                int charId = msg.readInt32();
                int skillId = msg.readInt8();
                int skillValue = msg.readInt32();
                storage->updateExperience(charId, skillId, skillValue);
            } break;

            case SYNC_ONLINE_STATUS:
            {
                LOG_DEBUG("received SYNC_ONLINE_STATUS");
                int charId = msg.readInt32();
                bool online = (msg.readInt8() == 1);
                storage->setOnlineStatus(charId, online);
            }
        }
    }

    transaction.commit();
}

void ChatHandler::handleWhoResponse(MessageIn &msg)
{
    std::string userNick;

    while(msg.getUnreadLength())
    {
        userNick = msg.readString();
        if (userNick == "")
        {
            break;
        }
        localChatTab->chatLog(userNick, BY_SERVER);
    }
}

void ChatHandler::handleListChannelsResponse(MessageIn &msg)
{
    localChatTab->chatLog(_("Listing channels."), BY_SERVER);
    while(msg.getUnreadLength())
    {
        std::string channelName = msg.readString();
        if (channelName == "")
            return;
        std::ostringstream numUsers;
        numUsers << msg.readInt16();
        channelName += " - ";
        channelName += numUsers.str();
        localChatTab->chatLog(channelName, BY_SERVER);
    }
    localChatTab->chatLog(_("End of channel list."), BY_SERVER);
}

void AccountConnection::sendPost(Character *c, MessageIn &msg)
{
    // send message to account server with id of sending player,
    // the id of receiving player, the letter receiver and contents, and attachments
    LOG_DEBUG("Sending GCMSG_STORE_POST.");
    MessageOut out(GCMSG_STORE_POST);
    out.writeInt32(c->getDatabaseID());
    out.writeString(msg.readString()); // name of receiver
    out.writeString(msg.readString()); // content of letter
    while (msg.getUnreadLength()) // attachments
    {
        // write the item id and amount for each attachment
        out.writeInt32(msg.readInt16());
        out.writeInt32(msg.readInt16());
    }
    send(out);
}

void ChatHandler::handleListChannelUsersResponse(MessageIn &msg)
{
    std::string channelName = msg.readString();
    std::string userNick;
    std::string userModes;
    Channel *channel = channelManager->findByName(channelName);
    channel->getTab()->chatLog(_("Players in this channel:"), BY_CHANNEL);
    while(msg.getUnreadLength())
    {
        userNick = msg.readString();
        if (userNick == "")
        {
            break;
        }
        userModes = msg.readString();
        if (userModes.find('o') != std::string::npos)
        {
            userNick = "@" + userNick;
        }
        localChatTab->chatLog(userNick, BY_CHANNEL, channel);
    }
}

void CharacterComponent::deserialize(Entity &entity, MessageIn &msg)
{
    auto *beingComponent = entity.getComponent<BeingComponent>();

    // general character properties
    setAccountLevel(msg.readInt8());
    beingComponent->setGender(ManaServ::getGender(msg.readInt8()));
    setHairStyle(msg.readInt8());
    setHairColor(msg.readInt8());
    setAttributePoints(msg.readInt16());
    setCorrectionPoints(msg.readInt16());

    // character attributes
    unsigned attrSize = msg.readInt16();
    for (unsigned i = 0; i < attrSize; ++i)
    {
        unsigned id = msg.readInt16();
        double base = msg.readDouble();
        auto *attributeInfo = attributeManager->getAttributeInfo(id);
        if (attributeInfo)
            beingComponent->setAttribute(entity, attributeInfo, base);
    }

    // status effects currently affecting the character
    int statusSize = msg.readInt16();

    for (int i = 0; i < statusSize; i++)
    {
        int status = msg.readInt16();
        int time = msg.readInt16();
        beingComponent->applyStatusEffect(status, time);
    }

    // location
    auto *map = MapManager::getMap(msg.readInt16());
    entity.setMap(map);

    Point temporaryPoint;
    temporaryPoint.x = msg.readInt16();
    temporaryPoint.y = msg.readInt16();
    entity.getComponent<ActorComponent>()->setPosition(entity, temporaryPoint);

    // kill count
    int killSize = msg.readInt16();
    for (int i = 0; i < killSize; i++)
    {
        int monsterId = msg.readInt16();
        int kills = msg.readInt32();
        setKillCount(monsterId, kills);
    }

    // character abilities
    int abilitiesSize = msg.readInt16();
    for (int i = 0; i < abilitiesSize; i++)
    {
        const int id = msg.readInt32();
        entity.getComponent<AbilityComponent>()->giveAbility(id);
    }

    // questlog
    int questlogSize = msg.readInt16();
    for (int i = 0; i < questlogSize; ++i) {
        unsigned id = msg.readInt16();
        QuestState state = (QuestState) msg.readInt8();
        std::string title = msg.readString();
        std::string description = msg.readString();

        setQuestlog(id, state, title, description);
    }

    Possessions &poss = getPossessions();

    // Loads inventory - must be last because size isn't transmitted
    InventoryData inventoryData;
    EquipData equipmentData;
    while (msg.getUnreadLength())
    {
        InventoryItem i;
        i.slot          = msg.readInt16();
        i.itemId        = msg.readInt16();
        i.amount        = msg.readInt16();
        bool isEquipped = msg.readInt8() != 0;
        inventoryData.insert(std::make_pair(i.slot, i));
        if (isEquipped)
            equipmentData.insert(i.slot);
    }
    poss.setInventory(inventoryData);
    poss.setEquipment(equipmentData);
}

void PlayerHandler::handleMessage(MessageIn &msg)
{
    switch (msg.getId())
    {
        case GPMSG_PLAYER_MAP_CHANGE:
            handleMapChangeMessage(msg);
            break;

        case GPMSG_PLAYER_SERVER_CHANGE:
        {   // TODO: Fix the servers to test this
            netToken = msg.readString(32);
            std::string address = msg.readString();
            int port = msg.readInt16();
            logger->log("Changing server to %s:%d", address.c_str(), port);

            gameServer.hostname = address;
            gameServer.port = port;

            gameServerConnection->disconnect();
            Client::setState(STATE_CHANGE_MAP);
            local_player->setMap(0);
        } break;

        case GPMSG_PLAYER_ATTRIBUTE_CHANGE:
        {
            while (msg.getUnreadLength())
            {
                int attrId = msg.readInt16();
                double base = msg.readInt32() / 256.0;
                double value = msg.readInt32() / 256.0;

                // Set the core player attribute the stat
                // depending on attribute link.
                int playerInfoId =
                                  Attributes::getPlayerInfoIdFromAttrId(attrId);
                if (playerInfoId > -1)
                {
                    PlayerInfo::setAttribute(playerInfoId, value);
                }
                else
                {
                    PlayerInfo::setStatBase(attrId, base);
                    PlayerInfo::setStatMod(attrId, value - base);
                }
            }
        } break;

        case GPMSG_PLAYER_EXP_CHANGE:
        {
            logger->log("EXP Update");
            while (msg.getUnreadLength())
            {
                int skill = msg.readInt16();
                int current = msg.readInt32();
                int next = msg.readInt32();
                int level = msg.readInt16();

                PlayerInfo::setStatExperience(skill, current, next);
                PlayerInfo::setStatBase(skill, level);
            }
        } break;

        case GPMSG_LEVELUP:
        {
            PlayerInfo::setAttribute(LEVEL, msg.readInt16());
            PlayerInfo::setAttribute(CHAR_POINTS, msg.readInt16());
            PlayerInfo::setAttribute(CORR_POINTS, msg.readInt16());
            Particle* effect = particleEngine->addEffect(
                                               paths.getStringValue("particles")
                                     + paths.getStringValue("levelUpEffectFile")
                                                         ,0, 0);
            local_player->controlParticle(effect);
        } break;


        case GPMSG_LEVEL_PROGRESS:
        {
            PlayerInfo::setAttribute(EXP, msg.readInt8());
        } break;


        case GPMSG_RAISE_ATTRIBUTE_RESPONSE:
        {
            int errCode = msg.readInt8();
            int attrNum = msg.readInt16();
            switch (errCode)
            {
                case ATTRIBMOD_OK:
                {
                    // feel(acknowledgment);
                } break;
                case ATTRIBMOD_INVALID_ATTRIBUTE:
                {
                    logger->log("Warning: Server denied increase of attribute %d (unknown attribute) ", attrNum);
                } break;
                case ATTRIBMOD_NO_POINTS_LEFT:
                {
                    // when the server says "you got no points" it
                    // has to be correct. The server is always right!
                    // undo attribute change and set points to 0
//.........这里部分代码省略.........

void ServerHandler::processMessage(NetComputer *comp, MessageIn &msg)
{
    GameServer *server = static_cast<GameServer *>(comp);

    switch (msg.getId())
    {
        case GAMSG_REGISTER:
        {
            LOG_DEBUG("GAMSG_REGISTER");
            // TODO: check the credentials of the game server
            server->address = msg.readString();
            server->port = msg.readInt16();
            const std::string password = msg.readString();

            // checks the version of the remote item database with our local copy
            unsigned int dbversion = msg.readInt32();
            LOG_INFO("Game server uses itemsdatabase with version " << dbversion);

            LOG_DEBUG("AGMSG_REGISTER_RESPONSE");
            MessageOut outMsg(AGMSG_REGISTER_RESPONSE);
            if (dbversion == storage->getItemDatabaseVersion())
            {
                LOG_DEBUG("Item databases between account server and "
                    "gameserver are in sync");
                outMsg.writeInt16(DATA_VERSION_OK);
            }
            else
            {
                LOG_DEBUG("Item database of game server has a wrong version");
                outMsg.writeInt16(DATA_VERSION_OUTDATED);
            }
            if (password == Configuration::getValue("net_password", "changeMe"))
            {
                outMsg.writeInt16(PASSWORD_OK);

                // transmit global world state variables
                std::map<std::string, std::string> variables;
                variables = storage->getAllWorldStateVars(Storage::WorldMap);
                for (std::map<std::string, std::string>::iterator i = variables.begin();
                     i != variables.end();
                     i++)
                {
                    outMsg.writeString(i->first);
                    outMsg.writeString(i->second);
                }

                comp->send(outMsg);
            }
            else
            {
                LOG_INFO("The password given by " << server->address << ':' << server->port << " was bad.");
                outMsg.writeInt16(PASSWORD_BAD);
                comp->disconnect(outMsg);
                break;
            }

            LOG_INFO("Game server " << server->address << ':' << server->port
                     << " wants to register " << (msg.getUnreadLength() / 2)
                     << " maps.");

            while (msg.getUnreadLength())
            {
                int id = msg.readInt16();
                LOG_INFO("Registering map " << id << '.');
                if (GameServer *s = getGameServerFromMap(id))
                {
                    LOG_ERROR("Server Handler: map is already registered by "
                              << s->address << ':' << s->port << '.');
                }
                else
                {
                    MessageOut outMsg(AGMSG_ACTIVE_MAP);

                    // Map variables
                    outMsg.writeInt16(id);
                    std::map<std::string, std::string> variables;
                    variables = storage->getAllWorldStateVars(id);

                     // Map vars number
                    outMsg.writeInt16(variables.size());

                    for (std::map<std::string, std::string>::iterator i = variables.begin();
                         i != variables.end();
                         i++)
                    {
                        outMsg.writeString(i->first);
                        outMsg.writeString(i->second);
                    }

                    // Persistent Floor Items
                    std::list<FloorItem> items;
                    items = storage->getFloorItemsFromMap(id);

                    outMsg.writeInt16(items.size()); //number of floor items

                    // Send each map item: item_id, amount, pos_x, pos_y
                    for (std::list<FloorItem>::iterator i = items.begin();
                         i != items.end(); ++i)
                    {
                        outMsg.writeInt32(i->getItemId());
//.........这里部分代码省略.........