QTfrontend/net/netudpwidget.cpp
author Wuzzy <almikes@aol.com>
Mon, 10 Apr 2017 21:42:53 +0200
changeset 12217 a6cd48b8ef61
parent 11046 47a8c19ecb60
child 12897 fc47fc4af6bd
permissions -rw-r--r--
Prevent frontend from starting game w/ >48 hogs This is because the engine does not support >48 hogs (another bug), but at least this commit a common crash with useless/confusing error message.

/*
 * Hedgewars, a free turn based strategy game
 * Copyright (c) 2007 Igor Ulyanov <iulyanov@gmail.com>
 * Copyright (c) 2004-2015 Andrey Korotaev <unC0Rr@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; version 2 of the License
 *
 * 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 St, Fifth Floor, Boston, MA  02110-1301  USA
 */

#include <QUdpSocket>

#include "netudpwidget.h"
#include "hwconsts.h"

HWNetUdpModel::HWNetUdpModel(QObject* parent) :
    HWNetServersModel(parent)
{
    pUdpSocket = new QUdpSocket(this);

    pUdpSocket->bind();
    connect(pUdpSocket, SIGNAL(readyRead()), this, SLOT(onClientRead()));
}

void HWNetUdpModel::updateList()
{
    games.clear();

    reset();

    pUdpSocket->writeDatagram("hedgewars client", QHostAddress::Broadcast, NETGAME_DEFAULT_PORT);
}

void HWNetUdpModel::onClientRead()
{
    while (pUdpSocket->hasPendingDatagrams())
    {
        QByteArray datagram;
        datagram.resize(pUdpSocket->pendingDatagramSize());
        QHostAddress clientAddr;
        quint16 clientPort;

        pUdpSocket->readDatagram(datagram.data(), datagram.size(), &clientAddr, &clientPort);

        QString packet = QString::fromUtf8(datagram.data());
        if(packet.startsWith("hedgewars server"))
        {
            QStringList sl;
            sl << packet.remove(0, 17) << clientAddr.toString() << QString::number(NETGAME_DEFAULT_PORT);
            games.append(sl);
        }
    }

    reset();
}

QVariant HWNetUdpModel::data(const QModelIndex &index,
                             int role) const
{
    if (!index.isValid() || index.row() < 0
            || index.row() >= games.size()
            || role != Qt::DisplayRole)
        return QVariant();

    return games[index.row()][index.column()];
}