Hard math to fix
issue #571. Well, not really hard math,
just checking if vector is in opposite direction and trait
that as a special case when removing rope dividing point
(this could only happens when rope sticks to land outline,
so this basically fixes a bug in another bug).
/*
* Hedgewars, a free turn based strategy game
* Copyright (c) 2006-2007 Igor Ulyanov <iulyanov@gmail.com>
* Copyright (c) 2004-2012 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#include "tcpBase.h"
#include <QMessageBox>
#include <QList>
#include <QApplication>
#include <QImage>
#include <QThread>
#include "hwconsts.h"
#ifdef HWLIBRARY
extern "C" void Game(char**arguments);
extern "C" void GenLandPreview(int port);
EngineInstance::EngineInstance(QObject *parent)
: QObject(parent)
{
port = 0;
}
EngineInstance::~EngineInstance()
{
}
void EngineInstance::start()
{
#if 0
char *args[11];
args[0] = "65000"; //ipcPort
args[1] = "1024"; //cScreenWidth
args[2] = "768"; //cScreenHeight
args[3] = "0"; //cReducedQuality
args[4] = "en.txt"; //cLocaleFName
args[5] = "koda"; //UserNick
args[6] = "1"; //SetSound
args[7] = "1"; //SetMusic
args[8] = "0"; //cAltDamage
args[9]= datadir->absolutePath().toAscii().data(); //cPathPrefix
args[10]= NULL; //recordFileName
Game(args);
#endif
GenLandPreview(port);
}
#endif
QList<TCPBase*> srvsList;
QPointer<QTcpServer> TCPBase::IPCServer(0);
TCPBase::~TCPBase()
{
// make sure this object is not in the server list anymore
srvsList.removeOne(this);
if (IPCSocket)
IPCSocket->deleteLater();
}
TCPBase::TCPBase(bool demoMode, QObject *parent) :
QObject(parent),
m_hasStarted(false),
m_isDemoMode(demoMode),
IPCSocket(0)
{
if(!IPCServer)
{
IPCServer = new QTcpServer(0);
IPCServer->setMaxPendingConnections(1);
if (!IPCServer->listen(QHostAddress::LocalHost))
{
QMessageBox deniedMsg(QApplication::activeWindow());
deniedMsg.setIcon(QMessageBox::Critical);
deniedMsg.setWindowTitle(QMessageBox::tr("TCP - Error"));
deniedMsg.setText(QMessageBox::tr("Unable to start the server: %1.").arg(IPCServer->errorString()));
deniedMsg.setWindowModality(Qt::WindowModal);
deniedMsg.exec();
exit(0); // FIXME - should be graceful exit here (lower Critical -> Warning above when implemented)
}
}
ipc_port=IPCServer->serverPort();
}
void TCPBase::NewConnection()
{
if(IPCSocket)
{
// connection should be already finished
return;
}
disconnect(IPCServer, SIGNAL(newConnection()), this, SLOT(NewConnection()));
IPCSocket = IPCServer->nextPendingConnection();
if(!IPCSocket) return;
connect(IPCSocket, SIGNAL(disconnected()), this, SLOT(ClientDisconnect()));
connect(IPCSocket, SIGNAL(readyRead()), this, SLOT(ClientRead()));
SendToClientFirst();
}
void TCPBase::RealStart()
{
connect(IPCServer, SIGNAL(newConnection()), this, SLOT(NewConnection()));
IPCSocket = 0;
#ifdef HWLIBRARY
QThread *thread = new QThread;
EngineInstance *instance = new EngineInstance;
instance->port = IPCServer->serverPort();
instance->moveToThread(thread);
connect(thread, SIGNAL(started()), instance, SLOT(start(void)));
connect(instance, SIGNAL(finished()), thread, SLOT(quit()));
connect(instance, SIGNAL(finished()), instance, SLOT(deleteLater()));
connect(instance, SIGNAL(finished()), thread, SLOT(deleteLater()));
thread->start();
#else
QProcess * process;
process = new QProcess();
connect(process, SIGNAL(error(QProcess::ProcessError)), this, SLOT(StartProcessError(QProcess::ProcessError)));
QStringList arguments=getArguments();
#ifdef DEBUG
// redirect everything written on stdout/stderr
process->setProcessChannelMode(QProcess::ForwardedChannels);
#endif
process->start(bindir->absolutePath() + "/hwengine", arguments);
#endif
m_hasStarted = true;
}
void TCPBase::ClientDisconnect()
{
disconnect(IPCSocket, SIGNAL(readyRead()), this, SLOT(ClientRead()));
onClientDisconnect();
emit isReadyNow();
IPCSocket->deleteLater();
deleteLater();
}
void TCPBase::ClientRead()
{
QByteArray readed=IPCSocket->readAll();
if(readed.isEmpty()) return;
readbuffer.append(readed);
onClientRead();
}
void TCPBase::StartProcessError(QProcess::ProcessError error)
{
QMessageBox deniedMsg(QApplication::activeWindow());
deniedMsg.setIcon(QMessageBox::Critical);
deniedMsg.setWindowTitle(QMessageBox::tr("TCP - Error"));
deniedMsg.setText(QMessageBox::tr("Unable to run engine at ") + bindir->absolutePath() + "/hwengine\n" +
QMessageBox::tr("Error code: %1").arg(error));
deniedMsg.setWindowModality(Qt::WindowModal);
deniedMsg.exec();
ClientDisconnect();
}
void TCPBase::tcpServerReady()
{
disconnect(srvsList.first(), SIGNAL(isReadyNow()), this, SLOT(tcpServerReady()));
RealStart();
}
void TCPBase::Start(bool couldCancelPreviousRequest)
{
if(srvsList.isEmpty())
{
srvsList.push_back(this);
RealStart();
}
else
{
TCPBase * last = srvsList.last();
if(couldCancelPreviousRequest
&& last->couldBeRemoved()
&& (last->parent() == parent()))
{
srvsList.removeLast();
last->deleteLater();
Start(couldCancelPreviousRequest);
} else
{
connect(srvsList.last(), SIGNAL(isReadyNow()), this, SLOT(tcpServerReady()));
srvsList.push_back(this);
}
}
}
void TCPBase::onClientRead()
{
}
void TCPBase::onClientDisconnect()
{
}
void TCPBase::SendToClientFirst()
{
}
void TCPBase::SendIPC(const QByteArray & buf)
{
if (buf.size() > MAXMSGCHARS) return;
quint8 len = buf.size();
RawSendIPC(QByteArray::fromRawData((char *)&len, 1) + buf);
}
void TCPBase::RawSendIPC(const QByteArray & buf)
{
if (!IPCSocket)
{
toSendBuf += buf;
}
else
{
if (toSendBuf.size() > 0)
{
IPCSocket->write(toSendBuf);
if(m_isDemoMode) demo.append(toSendBuf);
toSendBuf.clear();
}
if(!buf.isEmpty())
{
IPCSocket->write(buf);
if(m_isDemoMode) demo.append(buf);
}
}
}
bool TCPBase::couldBeRemoved()
{
return false;
}