Fix bee targeting fail across wrap world edge
Previously, the bee always aimed for the light area, no matter where you actually put the target. It also got confused whenever it flew across the wrap world edge.
How the bee works now:
1) The placed bee target is *not* recalculated when it was placed in the "gray" part of the wrap world edge. This allows for more fine-tuning.
1a) Place target in light area: bee aims for target light area
1b) Place target in gray area: bee aims for target, but flies to gray area first
2) Bee target is recalculated whenever bee passes the wrap world edge.
/*
* Hedgewars, a free turn based strategy game
* Copyright (c) 2006-2007 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 <QList>
#include <QImage>
#include <QThread>
#include <QApplication>
#include "tcpBase.h"
#include "hwconsts.h"
#include "MessageDialog.h"
#ifdef HWLIBRARY
extern "C" {
void RunEngine(int argc, char ** argv);
int operatingsystem_parameter_argc;
char ** operatingsystem_parameter_argv;
}
EngineInstance::EngineInstance(QObject *parent)
: QObject(parent)
{
}
EngineInstance::~EngineInstance()
{
qDebug() << "EngineInstance delete" << QThread::currentThreadId();
}
void EngineInstance::setArguments(const QStringList & arguments)
{
m_arguments.clear();
m_arguments << qApp->arguments().at(0).toUtf8();
m_argv.resize(arguments.size() + 1);
m_argv[0] = m_arguments.last().data();
int i = 1;
foreach(const QString & s, arguments)
{
m_arguments << s.toUtf8();
m_argv[i] = m_arguments.last().data();
++i;
}
}
void EngineInstance::start()
{
qDebug() << "EngineInstance start" << QThread::currentThreadId();
RunEngine(m_argv.size(), m_argv.data());
emit finished();
}
#endif
QList<TCPBase*> srvsList;
QPointer<QTcpServer> TCPBase::IPCServer(0);
TCPBase::~TCPBase()
{
if(m_hasStarted)
{
if(IPCSocket)
IPCSocket->close();
if(m_connected)
{
#ifdef HWLIBRARY
if(!thread)
qDebug("WTF");
thread->quit();
thread->wait();
#else
process->waitForFinished(1000);
#endif
}
}
// 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),
m_connected(false),
IPCSocket(0)
{
process = 0;
if(!IPCServer)
{
IPCServer = new QTcpServer(0);
IPCServer->setMaxPendingConnections(1);
if (!IPCServer->listen(QHostAddress::LocalHost))
{
MessageDialog::ShowFatalMessage(tr("Unable to start server at %1.").arg(IPCServer->errorString()));
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;
m_connected = true;
connect(IPCSocket, SIGNAL(disconnected()), this, SLOT(ClientDisconnect()));
connect(IPCSocket, SIGNAL(readyRead()), this, SLOT(ClientRead()));
SendToClientFirst();
if(simultaneousRun())
{
srvsList.removeOne(this);
emit isReadyNow();
}
}
void TCPBase::RealStart()
{
connect(IPCServer, SIGNAL(newConnection()), this, SLOT(NewConnection()));
IPCSocket = 0;
#ifdef HWLIBRARY
thread = new QThread(this);
EngineInstance *instance = new EngineInstance();
instance->setArguments(getArguments());
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
process = new QProcess(this);
connect(process, SIGNAL(error(QProcess::ProcessError)),
this, SLOT(StartProcessError(QProcess::ProcessError)));
connect(process, SIGNAL(finished(int, QProcess::ExitStatus)),
this, SLOT(onEngineDeath(int, QProcess::ExitStatus)));
QStringList arguments = getArguments();
#ifdef QT_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()
{
onClientDisconnect();
if(!simultaneousRun())
{
#ifdef HWLIBRARY
thread->quit();
thread->wait();
#endif
emit isReadyNow();
}
if(IPCSocket) {
disconnect(IPCSocket, SIGNAL(readyRead()), this, SLOT(ClientRead()));
IPCSocket->deleteLater();
IPCSocket = NULL;
}
deleteLater();
}
void TCPBase::ClientRead()
{
QByteArray read = IPCSocket->readAll();
if(read.isEmpty()) return;
readbuffer.append(read);
onClientRead();
}
void TCPBase::StartProcessError(QProcess::ProcessError error)
{
MessageDialog::ShowFatalMessage(tr("Unable to run engine at %1\nError code: %2").arg(bindir->absolutePath() + "/hwengine").arg(error));
ClientDisconnect();
}
void TCPBase::onEngineDeath(int exitCode, QProcess::ExitStatus exitStatus)
{
Q_UNUSED(exitStatus);
if(!m_connected) { // yes, it is intended to be like this
ClientDisconnect(); // need to do cleanup in case no connection occured,
//if m_connected is true, it is done automatically in socket disconnect handler
}
// show error message if there was an error that was not an engine's
// fatal error - because that one already sent a info via IPC
if ((exitCode != HWENGINE_EXITCODE_OK) && (exitCode != HWENGINE_EXITCODE_FATAL))
{
// inform user that something bad happened
MessageDialog::ShowFatalMessage(
tr("The game engine died unexpectedly!\n"
"(exit code %1)\n\n"
"We are very sorry for the inconvenience :(\n\n"
"If this keeps happening, please click the '%2' button in the main menu!")
.arg(exitCode)
.arg("Feedback"));
}
}
void TCPBase::tcpServerReady()
{
if (!srvsList.isEmpty())
{
disconnect(srvsList.first(), SIGNAL(isReadyNow()), this, SLOT(tcpServerReady()));
RealStart();
}
else
{
qDebug("tcpServerReady() called while srvsList was empty. Not starting TCP server");
}
}
void TCPBase::Start(bool couldCancelPreviousRequest)
{
if(srvsList.isEmpty())
{
srvsList.push_back(this);
RealStart();
}
else
{
TCPBase * last = srvsList.last();
if(couldCancelPreviousRequest
&& last->couldBeRemoved()
&& (last->isConnected() || !last->hasStarted())
&& (last->parent() == parent()))
{
srvsList.removeLast();
delete last;
Start(couldCancelPreviousRequest);
} else
{
connect(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;
}
bool TCPBase::isConnected()
{
return m_connected;
}
bool TCPBase::simultaneousRun()
{
return false;
}
bool TCPBase::hasStarted()
{
return m_hasStarted;
}