#include <iostream>
#include <algorithm>
#include <cstring>
-#include <osg/Math> // isNaN
+#include <errno.h>
#include <simgear/misc/stdint.hxx>
#include <simgear/timing/timestamp.hxx>
#include <simgear/props/props.hxx>
#include <AIModel/AIManager.hxx>
+#include <AIModel/AIMultiplayer.hxx>
#include <Main/fg_props.hxx>
#include "multiplaymgr.hxx"
#include "mpmessages.hxx"
+#include <FDM/flightProperties.hxx>
using namespace std;
const char sMULTIPLAYMGR_BID[] = "$Id$";
const char sMULTIPLAYMGR_HID[] = MULTIPLAYTXMGR_HID;
+struct IdPropertyList {
+ unsigned id;
+ const char* name;
+ simgear::props::Type type;
+};
+
+static const IdPropertyList* findProperty(unsigned id);
+
// A static map of protocol property id values to property paths,
// This should be extendable dynamically for every specific aircraft ...
// For now only that static list
-const FGMultiplayMgr::IdPropertyList
-FGMultiplayMgr::sIdPropertyList[] = {
+static const IdPropertyList sIdPropertyList[] = {
{100, "surface-positions/left-aileron-pos-norm", simgear::props::FLOAT},
{101, "surface-positions/right-aileron-pos-norm", simgear::props::FLOAT},
{102, "surface-positions/elevator-pos-norm", simgear::props::FLOAT},
{1300, "tanker", simgear::props::INT},
+ {1400, "scenery/events", simgear::props::STRING},
+
{10001, "sim/multiplay/transmission-freq-hz", simgear::props::STRING},
{10002, "sim/multiplay/chat", simgear::props::STRING},
{10319, "sim/multiplay/generic/int[19]", simgear::props::INT}
};
-const unsigned
-FGMultiplayMgr::numProperties = (sizeof(FGMultiplayMgr::sIdPropertyList)
- / sizeof(FGMultiplayMgr::sIdPropertyList[0]));
+const unsigned int numProperties = (sizeof(sIdPropertyList)
+ / sizeof(sIdPropertyList[0]));
// Look up a property ID using binary search.
namespace
{
struct ComparePropertyId
{
- bool operator()(const FGMultiplayMgr::IdPropertyList& lhs,
- const FGMultiplayMgr::IdPropertyList& rhs)
+ bool operator()(const IdPropertyList& lhs,
+ const IdPropertyList& rhs)
{
return lhs.id < rhs.id;
}
- bool operator()(const FGMultiplayMgr::IdPropertyList& lhs,
+ bool operator()(const IdPropertyList& lhs,
unsigned id)
{
return lhs.id < id;
}
bool operator()(unsigned id,
- const FGMultiplayMgr::IdPropertyList& rhs)
+ const IdPropertyList& rhs)
{
return id < rhs.id;
}
- };
-
+ };
}
-const FGMultiplayMgr::IdPropertyList* FGMultiplayMgr::findProperty(unsigned id)
+
+const IdPropertyList* findProperty(unsigned id)
{
std::pair<const IdPropertyList*, const IdPropertyList*> result
= std::equal_range(sIdPropertyList, sIdPropertyList + numProperties, id,
const xdr_data_t* xdr = data;
while (xdr < end) {
unsigned id = XDR_decode_uint32(*xdr);
- const FGMultiplayMgr::IdPropertyList* plist
- = FGMultiplayMgr::findProperty(id);
+ const IdPropertyList* plist = findProperty(id);
if (plist) {
xdr++;
case props::DOUBLE:
{
float val = XDR_decode_float(*xdr);
- if (osg::isNaN(val))
+ if (SGMisc<float>::isNaN(val))
return false;
xdr++;
break;
return true;
}
}
+
+class MPPropertyListener : public SGPropertyChangeListener
+{
+public:
+ MPPropertyListener(FGMultiplayMgr* mp) :
+ _multiplay(mp)
+ {
+ }
+
+ virtual void childAdded(SGPropertyNode*, SGPropertyNode*)
+ {
+ _multiplay->setPropertiesChanged();
+ }
+
+private:
+ FGMultiplayMgr* _multiplay;
+};
+
//////////////////////////////////////////////////////////////////////
//
// MultiplayMgr constructor
//////////////////////////////////////////////////////////////////////
FGMultiplayMgr::FGMultiplayMgr()
{
- mSocket = 0;
mInitialised = false;
mHaveServer = false;
+ mListener = NULL;
} // FGMultiplayMgr::FGMultiplayMgr()
//////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////
FGMultiplayMgr::~FGMultiplayMgr()
{
- Close();
+
} // FGMultiplayMgr::~FGMultiplayMgr()
//////////////////////////////////////////////////////////////////////
SG_LOG(SG_NETWORK, SG_WARN, "FGMultiplayMgr::init - already initialised");
return;
}
+
+ SGPropertyNode* propOnline = fgGetNode("/sim/multiplay/online", true);
+ propOnline->setBoolValue(false);
+ propOnline->setAttribute(SGPropertyNode::PRESERVE, true);
+
//////////////////////////////////////////////////
// Set members from property values
//////////////////////////////////////////////////
short rxPort = fgGetInt("/sim/multiplay/rxport");
string rxAddress = fgGetString("/sim/multiplay/rxhost");
- short txPort = fgGetInt("/sim/multiplay/txport");
+ short txPort = fgGetInt("/sim/multiplay/txport", 5000);
string txAddress = fgGetString("/sim/multiplay/txhost");
+
+ int hz = fgGetInt("/sim/multiplay/tx-rate-hz", 10);
+ if (hz < 1) {
+ hz = 10;
+ }
+
+ mDt = 1.0 / hz;
+ mTimeUntilSend = 0.0;
+
mCallsign = fgGetString("/sim/multiplay/callsign");
- if (txPort > 0 && !txAddress.empty()) {
+ if ((!txAddress.empty()) && (txAddress!="0")) {
mServer.set(txAddress.c_str(), txPort);
if (strncmp (mServer.getHost(), "0.0.0.0", 8) == 0) {
mHaveServer = false;
- SG_LOG(SG_NETWORK, SG_DEBUG,
- "FGMultiplayMgr - could not resolve '"
- << txAddress << "', Multiplayermode disabled");
+ SG_LOG(SG_NETWORK, SG_ALERT,
+ "Cannot enable multiplayer mode: resolving MP server address '"
+ << txAddress << "' failed.");
+ return;
} else {
+ SG_LOG(SG_NETWORK, SG_INFO, "FGMultiplayMgr - have server");
mHaveServer = true;
}
if (rxPort <= 0)
rxPort = txPort;
+ } else {
+ SG_LOG(SG_NETWORK, SG_INFO, "FGMultiplayMgr - multiplayer mode disabled (no MP server specificed).");
+ return;
}
+
if (rxPort <= 0) {
- SG_LOG(SG_NETWORK, SG_DEBUG,
- "FGMultiplayMgr - No receiver port, Multiplayermode disabled");
+ SG_LOG(SG_NETWORK, SG_ALERT,
+ "Cannot enable multiplayer mode: No receiver port specified.");
return;
}
if (mCallsign.empty())
SG_LOG(SG_NETWORK,SG_INFO,"FGMultiplayMgr::init-rxaddress="<<rxAddress );
SG_LOG(SG_NETWORK,SG_INFO,"FGMultiplayMgr::init-rxport= "<<rxPort);
SG_LOG(SG_NETWORK,SG_INFO,"FGMultiplayMgr::init-callsign= "<<mCallsign);
- Close(); // Should Init be called twice, close Socket first
- // A memory leak was reported here by valgrind
- mSocket = new simgear::Socket();
+
+ mSocket.reset(new simgear::Socket());
if (!mSocket->open(false)) {
- SG_LOG( SG_NETWORK, SG_DEBUG,
- "FGMultiplayMgr::init - Failed to create data socket" );
+ SG_LOG( SG_NETWORK, SG_ALERT,
+ "Cannot enable multiplayer mode: creating data socket failed." );
return;
}
mSocket->setBlocking(false);
if (mSocket->bind(rxAddress.c_str(), rxPort) != 0) {
- perror("bind");
- SG_LOG( SG_NETWORK, SG_DEBUG,
- "FGMultiplayMgr::Open - Failed to bind receive socket" );
+ SG_LOG( SG_NETWORK, SG_ALERT,
+ "Cannot enable multiplayer mode: binding receive socket failed. "
+ << strerror(errno) << "(errno " << errno << ")");
return;
}
+ mPropertiesChanged = true;
+ mListener = new MPPropertyListener(this);
+ globals->get_props()->addChangeListener(mListener, false);
+
+ fgSetBool("/sim/multiplay/online", true);
mInitialised = true;
+
+ SG_LOG(SG_NETWORK, SG_ALERT, "Multiplayer mode active!");
+
+ if (!fgGetBool("/sim/ai/enabled"))
+ {
+ // multiplayer depends on AI module
+ fgSetBool("/sim/ai/enabled", true);
+ }
} // FGMultiplayMgr::init()
//////////////////////////////////////////////////////////////////////
//
//////////////////////////////////////////////////////////////////////
void
-FGMultiplayMgr::Close (void)
+FGMultiplayMgr::shutdown (void)
{
- mMultiPlayerMap.clear();
-
- if (mSocket) {
+ fgSetBool("/sim/multiplay/online", false);
+
+ if (mSocket.get()) {
mSocket->close();
- delete mSocket;
- mSocket = 0;
+ mSocket.reset();
+ }
+
+ MultiPlayerMap::iterator it = mMultiPlayerMap.begin(),
+ end = mMultiPlayerMap.end();
+ for (; it != end; ++it) {
+ it->second->setDie(true);
}
+ mMultiPlayerMap.clear();
+
+ if (mListener) {
+ globals->get_props()->removeChangeListener(mListener);
+ delete mListener;
+ mListener = NULL;
+ }
+
mInitialised = false;
} // FGMultiplayMgr::Close(void)
//////////////////////////////////////////////////////////////////////
+void
+FGMultiplayMgr::reinit()
+{
+ shutdown();
+ init();
+}
+
//////////////////////////////////////////////////////////////////////
//
// Description: Sends the position data for the local position.
{
// check for corrupted data (NaNs)
bool isCorrupted = false;
- isCorrupted |= ((osg::isNaN(motionInfo.time )) ||
- (osg::isNaN(motionInfo.lag )) ||
+ isCorrupted |= ((SGMisc<double>::isNaN(motionInfo.time )) ||
+ (SGMisc<double>::isNaN(motionInfo.lag )) ||
(osg::isNaN(motionInfo.orientation(3) )));
for (unsigned i = 0; (i < 3)&&(!isCorrupted); ++i)
{
strncpy(PosMsg->Model, fgGetString("/sim/model/path"), MAX_MODEL_NAME_LEN);
PosMsg->Model[MAX_MODEL_NAME_LEN - 1] = '\0';
- if (fgGetBool("/sim/freeze/replay-state", true))
+ if (fgGetBool("/sim/freeze/replay-state", true)&&
+ fgGetBool("/sim/multiplay/freeze-on-replay",true))
{
// do not send position updates during replay
for (unsigned i = 0 ; i < 3; ++i)
//
//////////////////////////////////////////////////////////////////////
void
-FGMultiplayMgr::update(double)
+FGMultiplayMgr::update(double dt)
{
if (!mInitialised)
return;
/// Just for expiry
long stamp = SGTimeStamp::now().getSeconds();
+ //////////////////////////////////////////////////
+ // Send if required
+ //////////////////////////////////////////////////
+ mTimeUntilSend -= dt;
+ if (mTimeUntilSend <= 0.0) {
+ Send();
+ }
+
//////////////////////////////////////////////////
// Read the receive socket and process any data
//////////////////////////////////////////////////
// packet waiting to be processed.
//////////////////////////////////////////////////
simgear::IPAddress SenderAddress;
- bytes = mSocket->recvfrom(msgBuf.Msg, sizeof(msgBuf.Msg), 0,
+ int RecvStatus = mSocket->recvfrom(msgBuf.Msg, sizeof(msgBuf.Msg), 0,
&SenderAddress);
//////////////////////////////////////////////////
// no Data received
//////////////////////////////////////////////////
- if (bytes <= 0) {
- if (errno != EAGAIN && errno != 0) // MSVC output "NoError" otherwise
- perror("FGMultiplayMgr::MP_ProcessData");
- break;
+ if (RecvStatus == 0)
+ break;
+
+ // socket error reported?
+ // errno isn't thread-safe - so only check its value when
+ // socket return status < 0 really indicates a failure.
+ if ((RecvStatus < 0)&&
+ ((errno == EAGAIN) || (errno == 0))) // MSVC output "NoError" otherwise
+ {
+ // ignore "normal" errors
+ break;
+ }
+
+ if (RecvStatus<0)
+ {
+ SG_LOG(SG_NETWORK, SG_DEBUG, "FGMultiplayMgr::MP_ProcessData - Unable to receive data. "
+ << strerror(errno) << "(errno " << errno << ")");
+ break;
}
+
+ // status is positive: bytes received
+ bytes = (ssize_t) RecvStatus;
if (bytes <= static_cast<ssize_t>(sizeof(T_MsgHdr))) {
SG_LOG( SG_NETWORK, SG_DEBUG, "FGMultiplayMgr::MP_ProcessData - "
<< "received message with insufficient data" );
<< "message has invalid protocol number!" );
break;
}
- if (MsgHdr->MsgLen != bytes) {
+ if (static_cast<ssize_t>(MsgHdr->MsgLen) != bytes) {
SG_LOG(SG_NETWORK, SG_DEBUG, "FGMultiplayMgr::MP_ProcessData - "
<< "message from " << MsgHdr->Callsign << " has invalid length!");
break;
} // FGMultiplayMgr::ProcessData(void)
//////////////////////////////////////////////////////////////////////
+void
+FGMultiplayMgr::Send()
+{
+ using namespace simgear;
+
+ findProperties();
+
+ // smooth the send rate, by adjusting based on the 'remainder' time, which
+ // is how -ve mTimeUntilSend is. Watch for large values and ignore them,
+ // however.
+ if ((mTimeUntilSend < 0.0) && (fabs(mTimeUntilSend) < mDt)) {
+ mTimeUntilSend = mDt + mTimeUntilSend;
+ } else {
+ mTimeUntilSend = mDt;
+ }
+
+ double sim_time = globals->get_sim_time_sec();
+// static double lastTime = 0.0;
+
+ // SG_LOG(SG_GENERAL, SG_INFO, "actual dt=" << sim_time - lastTime);
+// lastTime = sim_time;
+
+ FlightProperties ifce;
+
+ // put together a motion info struct, you will get that later
+ // from FGInterface directly ...
+ FGExternalMotionData motionInfo;
+
+ // The current simulation time we need to update for,
+ // note that the simulation time is updated before calling all the
+ // update methods. Thus it contains the time intervals *end* time.
+ // The FDM is already run, so the states belong to that time.
+ motionInfo.time = sim_time;
+ motionInfo.lag = mDt;
+
+ // These are for now converted from lat/lon/alt and euler angles.
+ // But this should change in FGInterface ...
+ double lon = ifce.get_Longitude();
+ double lat = ifce.get_Latitude();
+ // first the aprioriate structure for the geodetic one
+ SGGeod geod = SGGeod::fromRadFt(lon, lat, ifce.get_Altitude());
+ // Convert to cartesion coordinate
+ motionInfo.position = SGVec3d::fromGeod(geod);
+
+ // The quaternion rotating from the earth centered frame to the
+ // horizontal local frame
+ SGQuatf qEc2Hl = SGQuatf::fromLonLatRad((float)lon, (float)lat);
+ // The orientation wrt the horizontal local frame
+ float heading = ifce.get_Psi();
+ float pitch = ifce.get_Theta();
+ float roll = ifce.get_Phi();
+ SGQuatf hlOr = SGQuatf::fromYawPitchRoll(heading, pitch, roll);
+ // The orientation of the vehicle wrt the earth centered frame
+ motionInfo.orientation = qEc2Hl*hlOr;
+
+ if (!globals->get_subsystem("flight")->is_suspended()) {
+ // velocities
+ motionInfo.linearVel = SG_FEET_TO_METER*SGVec3f(ifce.get_uBody(),
+ ifce.get_vBody(),
+ ifce.get_wBody());
+ motionInfo.angularVel = SGVec3f(ifce.get_P_body(),
+ ifce.get_Q_body(),
+ ifce.get_R_body());
+
+ // accels, set that to zero for now.
+ // Angular accelerations are missing from the interface anyway,
+ // linear accelerations are screwed up at least for JSBSim.
+// motionInfo.linearAccel = SG_FEET_TO_METER*SGVec3f(ifce.get_U_dot_body(),
+// ifce.get_V_dot_body(),
+// ifce.get_W_dot_body());
+ motionInfo.linearAccel = SGVec3f::zeros();
+ motionInfo.angularAccel = SGVec3f::zeros();
+ } else {
+ // if the interface is suspendend, prevent the client from
+ // wild extrapolations
+ motionInfo.linearVel = SGVec3f::zeros();
+ motionInfo.angularVel = SGVec3f::zeros();
+ motionInfo.linearAccel = SGVec3f::zeros();
+ motionInfo.angularAccel = SGVec3f::zeros();
+ }
+
+ // now send the properties
+ PropertyMap::iterator it;
+ for (it = mPropertyMap.begin(); it != mPropertyMap.end(); ++it) {
+ FGPropertyData* pData = new FGPropertyData;
+ pData->id = it->first;
+ pData->type = it->second->getType();
+
+ switch (pData->type) {
+ case props::INT:
+ case props::LONG:
+ case props::BOOL:
+ pData->int_value = it->second->getIntValue();
+ break;
+ case props::FLOAT:
+ case props::DOUBLE:
+ pData->float_value = it->second->getFloatValue();
+ break;
+ case props::STRING:
+ case props::UNSPECIFIED:
+ {
+ // FIXME: We assume unspecified are strings for the moment.
+
+ const char* cstr = it->second->getStringValue();
+ int len = strlen(cstr);
+
+ if (len > 0)
+ {
+ pData->string_value = new char[len + 1];
+ strcpy(pData->string_value, cstr);
+ }
+ else
+ {
+ // Size 0 - ignore
+ pData->string_value = 0;
+ }
+
+ //cout << " Sending property " << pData->id << " " << pData->type << " " << pData->string_value << "\n";
+ break;
+ }
+ default:
+ // FIXME Currently default to a float.
+ //cout << "Unknown type when iterating through props: " << pData->type << "\n";
+ pData->float_value = it->second->getFloatValue();
+ break;
+ }
+
+ motionInfo.properties.push_back(pData);
+ }
+
+ SendMyPosition(motionInfo);
+}
+
+
//////////////////////////////////////////////////////////////////////
//
// handle a position message
else
{
// We failed to find the property. We'll try the next packet immediately.
- SG_LOG(SG_NETWORK, SG_INFO, "FGMultiplayMgr::ProcessPosMsg - "
+ SG_LOG(SG_NETWORK, SG_DEBUG, "FGMultiplayMgr::ProcessPosMsg - "
"message from " << MsgHdr->Callsign << " has unknown property id "
<< id);
}
mp->setCallSign(callsign);
mMultiPlayerMap[callsign] = mp;
- FGAIManager *aiMgr = (FGAIManager*)globals->get_subsystem("ai_model");
+ FGAIManager *aiMgr = (FGAIManager*)globals->get_subsystem("ai-model");
if (aiMgr) {
aiMgr->attach(mp);
else
return 0;
}
+
+void
+FGMultiplayMgr::findProperties()
+{
+ if (!mPropertiesChanged) {
+ return;
+ }
+
+ mPropertiesChanged = false;
+
+ for (unsigned i = 0; i < numProperties; ++i) {
+ const char* name = sIdPropertyList[i].name;
+ SGPropertyNode* pNode = globals->get_props()->getNode(name);
+ if (!pNode) {
+ continue;
+ }
+
+ int id = sIdPropertyList[i].id;
+ if (mPropertyMap.find(id) != mPropertyMap.end()) {
+ continue; // already activated
+ }
+
+ mPropertyMap[id] = pNode;
+ SG_LOG(SG_NETWORK, SG_DEBUG, "activating MP property:" << pNode->getPath());
+ }
+}
projects / flightgear.git / blobdiff