#include <math.h>
#include <algorithm>
+#include <fstream>
+
+
+#include <osg/Geode>
+#include <osg/Geometry>
+#include <osg/MatrixTransform>
+#include <osg/Shape>
#include <simgear/debug/logstream.hxx>
-#include <simgear/route/waypoint.hxx>
+#include <simgear/scene/material/EffectGeode.hxx>
+#include <simgear/scene/material/matlib.hxx>
+#include <simgear/scene/material/mat.hxx>
+#include <simgear/scene/util/OsgMath.hxx>
+#include <Airports/simple.hxx>
#include <Airports/dynamics.hxx>
#include <AIModel/AIAircraft.hxx>
+#include <AIModel/performancedata.hxx>
#include <AIModel/AIFlightPlan.hxx>
+#include <ATC/atc_mgr.hxx>
+
+#include <Scenery/scenery.hxx>
+
#include "groundnetwork.hxx"
+using std::string;
+
/***************************************************************************
* FGTaxiSegment
**************************************************************************/
-// There is probably a computationally cheaper way of
+// There is probably a computationally cheaper way of
// doing this.
-void FGTaxiSegment::setTrackDistance()
+void FGTaxiSegment::setDimensions(double elevation)
{
length = SGGeodesy::distanceM(start->getGeod(), end->getGeod());
+ //heading = SGGeodesy::headingDeg(start->getGeod(), end->getGeod());
+
+ double az2; //, distanceM;
+ SGGeodesy::inverse(start->getGeod(), end->getGeod(), heading, az2, length);
+ double coveredDistance = length * 0.5;
+ SGGeodesy::direct(start->getGeod(), heading, coveredDistance, center, az2);
+ //start->setElevation(elevation);
+ //end->setElevation(elevation);
+ //cerr << "Centerpoint = (" << center.getLatitudeDeg() << ", " << center.getLongitudeDeg() << "). Heading = " << heading << endl;
}
-void FGTaxiSegment::setCourseDiff(double crse)
+//void FGTaxiSegment::setCourseDiff(double crse)
+//{
+// headingDiff = fabs(course - crse);
+
+// if (headingDiff > 180)
+// headingDiff = fabs(headingDiff - 360);
+//}
+
+void FGTaxiSegment::block(int id, time_t blockTime, time_t now)
+{
+ BlockListIterator i = blockTimes.begin();
+ while (i != blockTimes.end()) {
+ if (i->getId() == id)
+ break;
+ i++;
+ }
+ if (i == blockTimes.end()) {
+ blockTimes.push_back(Block(id, blockTime, now));
+ sort(blockTimes.begin(), blockTimes.end());
+ } else {
+ i->updateTimeStamps(blockTime, now);
+ }
+}
+
+// The segment has a block if any of the block times listed in the block list is
+// smaller than the current time.
+bool FGTaxiSegment::hasBlock(time_t now)
{
- headingDiff = fabs(course - crse);
+ for (BlockListIterator i = blockTimes.begin(); i != blockTimes.end(); i++) {
+ if (i->getBlockTime() < now)
+ return true;
+ }
+ return false;
+}
- if (headingDiff > 180)
- headingDiff = fabs(headingDiff - 360);
+void FGTaxiSegment::unblock(time_t now)
+{
+ if (blockTimes.size()) {
+ BlockListIterator i = blockTimes.begin();
+ if (i->getTimeStamp() < (now - 30)) {
+ blockTimes.erase(i);
+ }
+ }
}
+
/***************************************************************************
* FGTaxiRoute
**************************************************************************/
} else {
// If currNode points to the first node, this means the aircraft is not on the taxi node
// yet. Make sure to return a unique identifyer in this situation though, because otherwise
- // the speed adjust AI code may be unable to resolve whether two aircraft are on the same
- // taxi route or not. the negative of the preceding route seems a logical choice, as it is
- // unique for any starting location.
+ // the speed adjust AI code may be unable to resolve whether two aircraft are on the same
+ // taxi route or not. the negative of the preceding route seems a logical choice, as it is
+ // unique for any starting location.
// Note that this is probably just a temporary fix until I get Parking / tower control working.
*rte = -1 * *(currRoute);
}
return true;
};
+
void FGTaxiRoute::rewind(int route)
{
int currPoint;
return (*a) < (*b);
}
-FGGroundNetwork::FGGroundNetwork()
+bool compare_trafficrecords(FGTrafficRecord a, FGTrafficRecord b)
+{
+ return (a.getIntentions().size() < b.getIntentions().size());
+}
+
+FGGroundNetwork::FGGroundNetwork() :
+ parent(NULL)
{
hasNetwork = false;
foundRoute = false;
//maxDepth = 1000;
count = 0;
currTraffic = activeTraffic.begin();
+ group = 0;
+ version = 0;
+ networkInitialized = false;
}
FGGroundNetwork::~FGGroundNetwork()
{
+// JMT 2012-09-8 - disabling the groundnet-caching as part of enabling the
+// navcache. The problem isn't the NavCache - it's that for the past few years,
+// we have not being running destructors on FGPositioned classes, and hence,
+// not running this code.
+// When I fix FGPositioned lifetimes (unloading-at-runtime support), this
+// will need to be re-visited so it can run safely during shutdown.
+#if 0
+ //cerr << "Running Groundnetwork Destructor " << endl;
+ bool saveData = false;
+ ofstream cachefile;
+ if (fgGetBool("/sim/ai/groundnet-cache")) {
+ SGPath cacheData(globals->get_fg_home());
+ cacheData.append("ai");
+ string airport = parent->getId();
+
+ if ((airport) != "") {
+ char buffer[128];
+ ::snprintf(buffer, 128, "%c/%c/%c/",
+ airport[0], airport[1], airport[2]);
+ cacheData.append(buffer);
+ if (!cacheData.exists()) {
+ cacheData.create_dir(0777);
+ }
+ cacheData.append(airport + "-groundnet-cache.txt");
+ cachefile.open(cacheData.str().c_str());
+ saveData = true;
+ }
+ }
+ cachefile << "[GroundNetcachedata:ref:2011:09:04]" << endl;
for (FGTaxiNodeVectorIterator node = nodes.begin();
- node != nodes.end(); node++) {
+ node != nodes.end(); node++) {
+ if (saveData) {
+ cachefile << (*node)->getIndex () << " "
+ << (*node)->getElevationM (parent->getElevation()*SG_FEET_TO_METER) << " "
+ << endl;
+ }
delete(*node);
}
nodes.clear();
pushBackNodes.clear();
for (FGTaxiSegmentVectorIterator seg = segments.begin();
- seg != segments.end(); seg++) {
+ seg != segments.end(); seg++) {
delete(*seg);
}
segments.clear();
+ if (saveData) {
+ cachefile.close();
+ }
+#endif
+}
+
+void FGGroundNetwork::saveElevationCache() {
+ //cerr << "Running Groundnetwork Destructor " << endl;
+ bool saveData = false;
+ ofstream cachefile;
+ if (fgGetBool("/sim/ai/groundnet-cache")) {
+ SGPath cacheData(globals->get_fg_home());
+ cacheData.append("ai");
+ string airport = parent->getId();
+
+ if ((airport) != "") {
+ char buffer[128];
+ ::snprintf(buffer, 128, "%c/%c/%c/",
+ airport[0], airport[1], airport[2]);
+ cacheData.append(buffer);
+ if (!cacheData.exists()) {
+ cacheData.create_dir(0777);
+ }
+ cacheData.append(airport + "-groundnet-cache.txt");
+ cachefile.open(cacheData.str().c_str());
+ saveData = true;
+ }
+ }
+ cachefile << "[GroundNetcachedata:ref:2011:09:04]" << endl;
+ for (FGTaxiNodeVectorIterator node = nodes.begin();
+ node != nodes.end(); node++) {
+ if (saveData) {
+ cachefile << (*node)->getIndex () << " "
+ << (*node)->getElevationM (parent->getElevation()*SG_FEET_TO_METER) << " "
+ << endl;
+ }
+ }
+ if (saveData) {
+ cachefile.close();
+ }
}
void FGGroundNetwork::addSegment(const FGTaxiSegment & seg)
n.setIndex(i->getIndex());
n.setLatitude(i->getLatitude());
n.setLongitude(i->getLongitude());
+ n.setElevation(parent->getElevation()*SG_FEET_TO_METER);
nodes.push_back(new FGTaxiNode(n));
i++;
void FGGroundNetwork::init()
{
+ if (networkInitialized) {
+ FGATCController::init();
+ //cerr << "FGground network already initialized" << endl;
+ return;
+ }
hasNetwork = true;
+ nextSave = 0;
int index = 1;
sort(nodes.begin(), nodes.end(), compare_nodes);
//sort(segments.begin(), segments.end(), compare_segments());
while (i != segments.end()) {
(*i)->setStart(&nodes);
(*i)->setEnd(&nodes);
- (*i)->setTrackDistance();
+ (*i)->setDimensions(parent->getElevation() * SG_FEET_TO_METER);
(*i)->setIndex(index);
if ((*i)->isPushBack()) {
pushBackNodes.push_back((*i)->getEnd());
//}
//cerr << "Done initializing ground network" << endl;
//exit(1);
+ if (fgGetBool("/sim/ai/groundnet-cache")) {
+ SGPath cacheData(globals->get_fg_home());
+ cacheData.append("ai");
+ string airport = parent->getId();
+
+ if ((airport) != "") {
+ char buffer[128];
+ ::snprintf(buffer, 128, "%c/%c/%c/",
+ airport[0], airport[1], airport[2]);
+ cacheData.append(buffer);
+ if (!cacheData.exists()) {
+ cacheData.create_dir(0777);
+ }
+ int index;
+ double elev;
+ cacheData.append(airport + "-groundnet-cache.txt");
+ if (cacheData.exists()) {
+ ifstream data(cacheData.c_str());
+ string revisionStr;
+ data >> revisionStr;
+ if (revisionStr != "[GroundNetcachedata:ref:2011:09:04]") {
+ SG_LOG(SG_GENERAL, SG_ALERT,"GroundNetwork Warning: discarding outdated cachefile " <<
+ cacheData.c_str() << " for Airport " << airport);
+ } else {
+ for (FGTaxiNodeVectorIterator i = nodes.begin();
+ i != nodes.end();
+ i++) {
+ (*i)->setElevation(parent->getElevation() * SG_FEET_TO_METER);
+ data >> index >> elev;
+ if (data.eof())
+ break;
+ if (index != (*i)->getIndex()) {
+ SG_LOG(SG_GENERAL, SG_ALERT, "Index read from ground network cache at airport " << airport << " does not match index in the network itself");
+ } else {
+ (*i)->setElevation(elev);
+ }
+ }
+ }
+ }
+ }
+ }
+ //cerr << "Finished initializing " << parent->getId() << " groundnetwork " << endl;
+ networkInitialized = true;
}
int FGGroundNetwork::findNearestNode(const SGGeod & aGeod)
int index = -1;
for (FGTaxiNodeVectorIterator itr = nodes.begin(); itr != nodes.end();
- itr++) {
+ itr++) {
double d = SGGeodesy::distanceM(aGeod, (*itr)->getGeod());
if (d < minDist) {
minDist = d;
return index;
}
+int FGGroundNetwork::findNearestNodeOnRunway(const SGGeod & aGeod)
+{
+ double minDist = HUGE_VAL;
+ int index = -1;
+
+ for (FGTaxiNodeVectorIterator itr = nodes.begin(); itr != nodes.end();
+ itr++) {
+ if (!((*itr)->getIsOnRunway())) {
+ continue;
+ }
+ double d = SGGeodesy::distanceM(aGeod, (*itr)->getGeod());
+ if (d < minDist) {
+ minDist = d;
+ index = (*itr)->getIndex();
+ //cerr << "Minimum distance of " << minDist << " for index " << index << endl;
+ }
+ }
+
+ return index;
+}
+
+
int FGGroundNetwork::findNearestNode(double lat, double lon)
{
return findNearestNode(SGGeod::fromDeg(lon, lat));
FGTaxiNode *FGGroundNetwork::findNode(unsigned idx)
{ /*
- for (FGTaxiNodeVectorIterator
+ for (FGTaxiNodeVectorIterator
itr = nodes.begin();
itr != nodes.end(); itr++)
{
return itr->getAddress();
} */
- if ((idx >= 0) && (idx < nodes.size()))
+ if (idx < nodes.size())
return nodes[idx]->getAddress();
else
return 0;
FGTaxiSegment *FGGroundNetwork::findSegment(unsigned idx)
{ /*
- for (FGTaxiSegmentVectorIterator
+ for (FGTaxiSegmentVectorIterator
itr = segments.begin();
itr != segments.end(); itr++)
{
if (itr->getIndex() == idx)
return itr->getAddress();
- }
+ }
*/
if ((idx > 0) && (idx <= segments.size()))
return segments[idx - 1]->getAddress();
FGTaxiRoute FGGroundNetwork::findShortestRoute(int start, int end,
- bool fullSearch)
+ bool fullSearch)
{
//implements Dijkstra's algorithm to find shortest distance route from start to end
//taken from http://en.wikipedia.org/wiki/Dijkstra's_algorithm
}
for (FGTaxiNodeVectorIterator
- itr = currNodesSet->begin(); itr != currNodesSet->end(); itr++) {
+ itr = currNodesSet->begin(); itr != currNodesSet->end(); itr++) {
(*itr)->setPathScore(HUGE_VAL); //infinity by all practical means
(*itr)->setPreviousNode(0); //
(*itr)->setPreviousSeg(0); //
}
FGTaxiNode *firstNode = findNode(start);
+ if (!firstNode)
+ {
+ SG_LOG(SG_GENERAL, SG_ALERT,
+ "Error in ground network. Failed to find first waypoint: " << start
+ << " at " << ((parent) ? parent->getId() : "<unknown>"));
+ return FGTaxiRoute();
+ }
firstNode->setPathScore(0);
FGTaxiNode *lastNode = findNode(end);
+ if (!lastNode)
+ {
+ SG_LOG(SG_GENERAL, SG_ALERT,
+ "Error in ground network. Failed to find last waypoint: " << end
+ << " at " << ((parent) ? parent->getId() : "<unknown>"));
+ return FGTaxiRoute();
+ }
FGTaxiNodeVector unvisited(*currNodesSet); // working copy
while (!unvisited.empty()) {
FGTaxiNode *best = *(unvisited.begin());
for (FGTaxiNodeVectorIterator
- itr = unvisited.begin(); itr != unvisited.end(); itr++) {
+ itr = unvisited.begin(); itr != unvisited.end(); itr++) {
if ((*itr)->getPathScore() < best->getPathScore())
best = (*itr);
}
break;
} else {
for (FGTaxiSegmentVectorIterator
- seg = best->getBeginRoute();
- seg != best->getEndRoute(); seg++) {
+ seg = best->getBeginRoute();
+ seg != best->getEndRoute(); seg++) {
if (fullSearch || (*seg)->isPushBack()) {
FGTaxiNode *tgt = (*seg)->getEnd();
+ if (!tgt)
+ {
+ SG_LOG(SG_GENERAL, SG_ALERT,
+ "Error in ground network. Found empty segment "
+ << " at " << ((parent) ? parent->getId() : "<unknown>"));
+ return FGTaxiRoute();
+ }
double alt =
best->getPathScore() + (*seg)->getLength() +
(*seg)->getPenalty(nParkings);
double radius, int leg,
FGAIAircraft * aircraft)
{
+ init();
TrafficVectorIterator i = activeTraffic.begin();
// Search search if the current id alread has an entry
// This might be faster using a map instead of a vector, but let's start by taking a safe route
rec.setPositionAndHeading(lat, lon, heading, speed, alt);
rec.setRadius(radius); // only need to do this when creating the record.
rec.setAircraft(aircraft);
- activeTraffic.push_back(rec);
+ if (leg == 2) {
+ activeTraffic.push_front(rec);
+ } else {
+ activeTraffic.push_back(rec);
+ }
+
} else {
i->setPositionAndIntentions(currentPosition, intendedRoute);
i->setPositionAndHeading(lat, lon, heading, speed, alt);
}
}
+
void FGGroundNetwork::signOff(int id)
{
TrafficVectorIterator i = activeTraffic.begin();
}
if (i == activeTraffic.end() || (activeTraffic.size() == 0)) {
SG_LOG(SG_GENERAL, SG_ALERT,
- "AI error: Aircraft without traffic record is signing off");
+ "AI error: Aircraft without traffic record is signing off at " << SG_ORIGIN);
} else {
i = activeTraffic.erase(i);
}
}
+/**
+ * The ground network can deal with the following states:
+ * 0 = Normal; no action required
+ * 1 = "Acknowledge "Hold position
+ * 2 = "Acknowledge "Resume taxi".
+ * 3 = "Issue TaxiClearance"
+ * 4 = Acknowledge Taxi Clearance"
+ * 5 = Post acknowlegde taxiclearance: Start taxiing
+ * 6 = Report runway
+ * 7 = Acknowledge report runway
+ * 8 = Switch tower frequency
+ * 9 = Acknowledge switch tower frequency
+ *************************************************************************************************************************/
+bool FGGroundNetwork::checkTransmissionState(int minState, int maxState, TrafficVectorIterator i, time_t now, AtcMsgId msgId,
+ AtcMsgDir msgDir)
+{
+ int state = i->getState();
+ if ((state >= minState) && (state <= maxState) && available) {
+ if ((msgDir == ATC_AIR_TO_GROUND) && isUserAircraft(i->getAircraft())) {
+ //cerr << "Checking state " << state << " for " << i->getAircraft()->getCallSign() << endl;
+ static SGPropertyNode_ptr trans_num = globals->get_props()->getNode("/sim/atc/transmission-num", true);
+ int n = trans_num->getIntValue();
+ if (n == 0) {
+ trans_num->setIntValue(-1);
+ // PopupCallback(n);
+ //cerr << "Selected transmission message " << n << endl;
+ //FGATCManager *atc = (FGATCManager*) globals->get_subsystem("atc");
+ FGATCDialogNew::instance()->removeEntry(1);
+ } else {
+ //cerr << "creating message for " << i->getAircraft()->getCallSign() << endl;
+ transmit(&(*i), &(*parent->getDynamics()), msgId, msgDir, false);
+ return false;
+ }
+ }
+ transmit(&(*i), &(*parent->getDynamics()), msgId, msgDir, true);
+ i->updateState();
+ lastTransmission = now;
+ available = false;
+ return true;
+ }
+ return false;
+}
-void FGGroundNetwork::update(int id, double lat, double lon,
- double heading, double speed, double alt,
- double dt)
+void FGGroundNetwork::updateAircraftInformation(int id, double lat, double lon,
+ double heading, double speed, double alt,
+ double dt)
{
- // Check whether aircraft are on hold due to a preceding pushback. If so, make sure to
+ time_t currentTime = time(NULL);
+ if (nextSave < currentTime) {
+ saveElevationCache();
+ nextSave = currentTime + 100 + rand() % 200;
+ }
+ // Check whether aircraft are on hold due to a preceding pushback. If so, make sure to
// Transmit air-to-ground "Ready to taxi request:
// Transmit ground to air approval / hold
- // Transmit confirmation ...
+ // Transmit confirmation ...
// Probably use a status mechanism similar to the Engine start procedure in the startup controller.
// update position of the current aircraft
if (i == activeTraffic.end() || (activeTraffic.size() == 0)) {
SG_LOG(SG_GENERAL, SG_ALERT,
- "AI error: updating aircraft without traffic record");
+ "AI error: updating aircraft without traffic record at " << SG_ORIGIN);
} else {
i->setPositionAndHeading(lat, lon, heading, speed, alt);
current = i;
bool needsTaxiClearance = current->getAircraft()->getTaxiClearanceRequest();
if (!needsTaxiClearance) {
checkHoldPosition(id, lat, lon, heading, speed, alt);
- if (checkForCircularWaits(id)) {
- i->setResolveCircularWait();
- }
+ //if (checkForCircularWaits(id)) {
+ // i->setResolveCircularWait();
+ //}
} else {
current->setHoldPosition(true);
int state = current->getState();
if ((now - lastTransmission) > 15) {
available = true;
}
- if ((state < 3) && available) {
- transmit(&(*current), MSG_REQUEST_TAXI_CLEARANCE, ATC_AIR_TO_GROUND);
- current->setState(3);
- lastTransmission = now;
- available = false;
+ if (checkTransmissionState(0,2, current, now, MSG_REQUEST_TAXI_CLEARANCE, ATC_AIR_TO_GROUND)) {
+ current->setState(3);
}
- if ((state == 3) && available) {
- transmit(&(*current), MSG_ISSUE_TAXI_CLEARANCE, ATC_GROUND_TO_AIR);
+ if (checkTransmissionState(3,3, current, now, MSG_ISSUE_TAXI_CLEARANCE, ATC_GROUND_TO_AIR)) {
current->setState(4);
- lastTransmission = now;
- available = false;
}
- if ((state == 4) && available) {
- transmit(&(*current), MSG_ACKNOWLEDGE_TAXI_CLEARANCE, ATC_AIR_TO_GROUND);
+ if (checkTransmissionState(4,4, current, now, MSG_ACKNOWLEDGE_TAXI_CLEARANCE, ATC_AIR_TO_GROUND)) {
current->setState(5);
- lastTransmission = now;
- available = false;
}
if ((state == 5) && available) {
current->setState(0);
current->getAircraft()->setTaxiClearanceRequest(false);
- current->setHoldPosition(true);
+ current->setHoldPosition(false);
available = false;
}
}
-
}
/**
aircraft. For traffic that is on other routes we need to issue a "HOLD Position"
instruction. See below for the hold position instruction.
- Note that there currently still is one flaw in the logic that needs to be addressed.
+ Note that there currently still is one flaw in the logic that needs to be addressed.
There can be situations where one aircraft is in front of the current aircraft, on a separate
route, but really close after an intersection coming off the current route. This
aircraft is still close enough to block the current aircraft. This situation is currently
*/
void FGGroundNetwork::checkSpeedAdjustment(int id, double lat,
- double lon, double heading,
- double speed, double alt)
+ double lon, double heading,
+ double speed, double alt)
{
- TrafficVectorIterator current, closest;
+ TrafficVectorIterator current, closest, closestOnNetwork;
TrafficVectorIterator i = activeTraffic.begin();
bool otherReasonToSlowDown = false;
- bool previousInstruction;
+// bool previousInstruction;
if (activeTraffic.size()) {
//while ((i->getId() != id) && (i != activeTraffic.end()))
while (i != activeTraffic.end()) {
}
if (i == activeTraffic.end() || (activeTraffic.size() == 0)) {
SG_LOG(SG_GENERAL, SG_ALERT,
- "AI error: Trying to access non-existing aircraft in FGGroundNetwork::checkSpeedAdjustment");
+ "AI error: Trying to access non-existing aircraft in FGGroundNetwork::checkSpeedAdjustment at " << SG_ORIGIN);
}
current = i;
//closest = current;
- previousInstruction = current->getSpeedAdjustment();
+// previousInstruction = current->getSpeedAdjustment();
double mindist = HUGE_VAL;
if (activeTraffic.size()) {
- double course, dist, bearing, minbearing, az2;
+ double course, dist, bearing, az2; // minbearing,
SGGeod curr(SGGeod::fromDegM(lon, lat, alt));
//TrafficVector iterator closest;
closest = current;
+ closestOnNetwork = current;
for (TrafficVectorIterator i = activeTraffic.begin();
- i != activeTraffic.end(); i++) {
+ i != activeTraffic.end(); i++) {
if (i == current) {
continue;
}
if ((dist < mindist) && (bearing < 60.0)) {
mindist = dist;
closest = i;
- minbearing = bearing;
+ closestOnNetwork = i;
+// minbearing = bearing;
+
}
}
//Check traffic at the tower controller
if (towerController->hasActiveTraffic()) {
for (TrafficVectorIterator i =
- towerController->getActiveTraffic().begin();
- i != towerController->getActiveTraffic().end(); i++) {
+ towerController->getActiveTraffic().begin();
+ i != towerController->getActiveTraffic().end(); i++) {
//cerr << "Comparing " << current->getId() << " and " << i->getId() << endl;
SGGeod other(SGGeod::fromDegM(i->getLongitude(),
i->getLatitude(),
if (bearing > 180)
bearing = 360 - bearing;
if ((dist < mindist) && (bearing < 60.0)) {
+ //cerr << "Current aircraft " << current->getAircraft()->getTrafficRef()->getCallSign()
+ // << " is closest to " << i->getAircraft()->getTrafficRef()->getCallSign()
+ // << ", which has status " << i->getAircraft()->isScheduledForTakeoff()
+ // << endl;
mindist = dist;
closest = i;
- minbearing = bearing;
+// minbearing = bearing;
otherReasonToSlowDown = true;
}
}
}
// Finally, check UserPosition
+ // Note, as of 2011-08-01, this should no longer be necessecary.
+ /*
double userLatitude = fgGetDouble("/position/latitude-deg");
double userLongitude = fgGetDouble("/position/longitude-deg");
SGGeod user(SGGeod::fromDeg(userLongitude, userLatitude));
minbearing = bearing;
otherReasonToSlowDown = true;
}
-
+ */
current->clearSpeedAdjustment();
-
+ bool needBraking = false;
if (current->checkPositionAndIntentions(*closest)
- || otherReasonToSlowDown) {
+ || otherReasonToSlowDown) {
double maxAllowableDistance =
(1.1 * current->getRadius()) +
(1.1 * closest->getRadius());
return;
else
current->setWaitsForId(closest->getId());
- if (closest->getId() != current->getId())
+ if (closest->getId() != current->getId()) {
current->setSpeedAdjustment(closest->getSpeed() *
(mindist / 100));
- else
+ needBraking = true;
+
+// if (
+// closest->getAircraft()->getTakeOffStatus() &&
+// (current->getAircraft()->getTrafficRef()->getDepartureAirport() == closest->getAircraft()->getTrafficRef()->getDepartureAirport()) &&
+// (current->getAircraft()->GetFlightPlan()->getRunway() == closest->getAircraft()->GetFlightPlan()->getRunway())
+// )
+// current->getAircraft()->scheduleForATCTowerDepartureControl(1);
+ } else {
current->setSpeedAdjustment(0); // This can only happen when the user aircraft is the one closest
+ }
if (mindist < maxAllowableDistance) {
//double newSpeed = (maxAllowableDistance-mindist);
//current->setSpeedAdjustment(newSpeed);
}
}
}
+ if ((closest->getId() == closestOnNetwork->getId()) && (current->getPriority() < closest->getPriority()) && needBraking) {
+ swap(current, closest);
+ }
}
}
TrafficVectorIterator current;
TrafficVectorIterator i = activeTraffic.begin();
if (activeTraffic.size()) {
- //while ((i->getId() != id) && i != activeTraffic.end())
+ //while ((i->getId() != id) && i != activeTraffic.end())
while (i != activeTraffic.end()) {
if (i->getId() == id) {
break;
} else {
return;
}
+ time_t now = time(NULL) + fgGetLong("/sim/time/warp");
if (i == activeTraffic.end() || (activeTraffic.size() == 0)) {
SG_LOG(SG_GENERAL, SG_ALERT,
- "AI error: Trying to access non-existing aircraft in FGGroundNetwork::checkHoldPosition");
+ "AI error: Trying to access non-existing aircraft in FGGroundNetwork::checkHoldPosition at " << SG_ORIGIN);
}
current = i;
+ //
+ if (current->getAircraft()->getTakeOffStatus() == 1) {
+ current->setHoldPosition(true);
+ return;
+ }
+ if (current->getAircraft()->getTakeOffStatus() == 2) {
+ //cerr << current->getAircraft()->getCallSign() << ". Taxi in position and hold" << endl;
+ current->setHoldPosition(false);
+ current->clearSpeedAdjustment();
+ return;
+ }
bool origStatus = current->hasHoldPosition();
current->setHoldPosition(false);
SGGeod curr(SGGeod::fromDegM(lon, lat, alt));
+ int currentRoute = i->getCurrentPosition();
+ int nextRoute;
+ if (i->getIntentions().size()) {
+ nextRoute = (*(i->getIntentions().begin()));
+ } else {
+ nextRoute = 0;
+ }
+ if (currentRoute > 0) {
+ FGTaxiSegment *tx = findSegment(currentRoute);
+ FGTaxiSegment *nx;
+ if (nextRoute) {
+ nx = findSegment(nextRoute);
+ } else {
+ nx = tx;
+ }
+ //if (tx->hasBlock(now) || nx->hasBlock(now) ) {
+ // current->setHoldPosition(true);
+ //}
+ SGGeod start(SGGeod::fromDeg((i->getLongitude()), (i->getLatitude())));
+ SGGeod end (SGGeod::fromDeg(nx->getStart()->getLongitude(), nx->getStart()->getLatitude()));
- for (i = activeTraffic.begin(); i != activeTraffic.end(); i++) {
- if (i->getId() != current->getId()) {
- int node = current->crosses(this, *i);
- if (node != -1) {
- FGTaxiNode *taxiNode = findNode(node);
-
- // Determine whether it's save to continue or not.
- // If we have a crossing route, there are two possibilities:
- // 1) This is an interestion
- // 2) This is oncoming two-way traffic, using the same taxiway.
- //cerr << "Hold check 1 : " << id << " has common node " << node << endl;
-
- SGGeod other(SGGeod::
- fromDegM(i->getLongitude(), i->getLatitude(),
- i->getAltitude()));
- bool needsToWait;
- bool opposing;
- if (current->isOpposing(this, *i, node)) {
- needsToWait = true;
- opposing = true;
- //cerr << "Hold check 2 : " << node << " has opposing segment " << endl;
- // issue a "Hold Position" as soon as we're close to the offending node
- // For now, I'm doing this as long as the other aircraft doesn't
- // have a hold instruction as soon as we're within a reasonable
- // distance from the offending node.
- // This may be a bit of a conservative estimate though, as it may
- // be well possible that both aircraft can both continue to taxi
- // without crashing into each other.
- } else {
- opposing = false;
- if (SGGeodesy::distanceM(other, taxiNode->getGeod()) > 200) // 2.0*i->getRadius())
- {
- needsToWait = false;
- //cerr << "Hold check 3 : " << id <<" Other aircraft approaching node is still far away. (" << dist << " nm). Can safely continue "
- // << endl;
- } else {
- needsToWait = true;
- //cerr << "Hold check 4: " << id << " Would need to wait for other aircraft : distance = " << dist << " meters" << endl;
- }
- }
-
- double dist =
- SGGeodesy::distanceM(curr, taxiNode->getGeod());
- if (!(i->hasHoldPosition())) {
-
- if ((dist < 200) && //2.5*current->getRadius()) &&
- (needsToWait) && (i->onRoute(this, *current)) &&
- //((i->onRoute(this, *current)) || ((!(i->getSpeedAdjustment())))) &&
- (!(current->getId() == i->getWaitsForId())))
- //(!(i->getSpeedAdjustment()))) // &&
- //(!(current->getSpeedAdjustment())))
-
- {
+ double distance = SGGeodesy::distanceM(start, end);
+ if (nx->hasBlock(now) && (distance < i->getRadius() * 4)) {
+ current->setHoldPosition(true);
+ } else {
+ intVecIterator ivi = i->getIntentions().begin();
+ while (ivi != i->getIntentions().end()) {
+ if ((*ivi) > 0) {
+ distance += segments[(*ivi)-1]->getLength();
+ if ((segments[(*ivi)-1]->hasBlock(now)) && (distance < i->getRadius() * 4)) {
current->setHoldPosition(true);
- current->setWaitsForId(i->getId());
- //cerr << "Hold check 5: " << current->getCallSign() <<" Setting Hold Position: distance to node (" << node << ") "
- // << dist << " meters. Waiting for " << i->getCallSign();
- //if (opposing)
- //cerr <<" [opposing] " << endl;
- //else
- // cerr << "[non-opposing] " << endl;
- //if (i->hasSpeefAdjustment())
- // {
- // cerr << " (which in turn waits for ) " << i->
- } else {
- //cerr << "Hold check 6: " << id << " No need to hold yet: Distance to node : " << dist << " nm"<< endl;
+ break;
}
}
+ ivi++;
}
- }
+ }
}
bool currStatus = current->hasHoldPosition();
-
+ current->setHoldPosition(origStatus);
// Either a Hold Position or a resume taxi transmission has been issued
- time_t now = time(NULL) + fgGetLong("/sim/time/warp");
if ((now - lastTransmission) > 2) {
available = true;
}
- if ((origStatus != currStatus) && available) {
- //cerr << "Issueing hold short instrudtion " << currStatus << " " << available << endl;
- if (currStatus == true) { // No has a hold short instruction
- transmit(&(*current), MSG_HOLD_POSITION, ATC_GROUND_TO_AIR);
- //cerr << "Transmittin hold short instrudtion " << currStatus << " " << available << endl;
- current->setState(1);
- } else {
- transmit(&(*current), MSG_RESUME_TAXI, ATC_GROUND_TO_AIR);
- //cerr << "Transmittig resume instrudtion " << currStatus << " " << available << endl;
- current->setState(2);
+ if (current->getState() == 0) {
+ if ((origStatus != currStatus) && available) {
+ //cerr << "Issueing hold short instrudtion " << currStatus << " " << available << endl;
+ if (currStatus == true) { // No has a hold short instruction
+ transmit(&(*current), &(*parent->getDynamics()), MSG_HOLD_POSITION, ATC_GROUND_TO_AIR, true);
+ //cerr << "Transmittin hold short instrudtion " << currStatus << " " << available << endl;
+ current->setState(1);
+ } else {
+ transmit(&(*current), &(*parent->getDynamics()), MSG_RESUME_TAXI, ATC_GROUND_TO_AIR, true);
+ //cerr << "Transmittig resume instrudtion " << currStatus << " " << available << endl;
+ current->setState(2);
+ }
+ lastTransmission = now;
+ available = false;
+ // Don't act on the changed instruction until the transmission is confirmed
+ // So set back to original status
+ //cerr << "Current state " << current->getState() << endl;
}
- lastTransmission = now;
- available = false;
- // Don't act on the changed instruction until the transmission is confirmed
- // So set back to original status
- current->setHoldPosition(origStatus);
- //cerr << "Current state " << current->getState() << endl;
- } else {
+
}
- int state = current->getState();
- if ((state == 1) && (available)) {
- //cerr << "ACKNOWLEDGE HOLD" << endl;
- transmit(&(*current), MSG_ACKNOWLEDGE_HOLD_POSITION, ATC_AIR_TO_GROUND);
+ // 6 = Report runway
+ // 7 = Acknowledge report runway
+ // 8 = Switch tower frequency
+ //9 = Acknowledge switch tower frequency
+
+ //int state = current->getState();
+ if (checkTransmissionState(1,1, current, now, MSG_ACKNOWLEDGE_HOLD_POSITION, ATC_AIR_TO_GROUND)) {
current->setState(0);
current->setHoldPosition(true);
- lastTransmission = now;
- available = false;
-
}
- if ((state == 2) && (available)) {
- //cerr << "ACKNOWLEDGE RESUME" << endl;
- transmit(&(*current), MSG_ACKNOWLEDGE_RESUME_TAXI, ATC_AIR_TO_GROUND);
+ if (checkTransmissionState(2,2, current, now, MSG_ACKNOWLEDGE_RESUME_TAXI, ATC_AIR_TO_GROUND)) {
current->setState(0);
current->setHoldPosition(false);
- lastTransmission = now;
- available = false;
}
+ if (current->getAircraft()->getTakeOffStatus() && (current->getState() == 0)) {
+ //cerr << "Scheduling " << current->getAircraft()->getCallSign() << " for hold short" << endl;
+ current->setState(6);
+ }
+ if (checkTransmissionState(6,6, current, now, MSG_REPORT_RUNWAY_HOLD_SHORT, ATC_AIR_TO_GROUND)) {
+ }
+ if (checkTransmissionState(7,7, current, now, MSG_ACKNOWLEDGE_REPORT_RUNWAY_HOLD_SHORT, ATC_GROUND_TO_AIR)) {
+ }
+ if (checkTransmissionState(8,8, current, now, MSG_SWITCH_TOWER_FREQUENCY, ATC_GROUND_TO_AIR)) {
+ }
+ if (checkTransmissionState(9,9, current, now, MSG_ACKNOWLEDGE_SWITCH_TOWER_FREQUENCY, ATC_AIR_TO_GROUND)) {
+ }
+
+
+
+ //current->setState(0);
}
/**
* Check whether situations occur where the current aircraft is waiting for itself
- * due to higher order interactions.
+ * due to higher order interactions.
* A 'circular' wait is a situation where a waits for b, b waits for c, and c waits
- * for a. Ideally each aircraft only waits for one other aircraft, so by tracing
- * through this list of waiting aircraft, we can check if we'd eventually end back
+ * for a. Ideally each aircraft only waits for one other aircraft, so by tracing
+ * through this list of waiting aircraft, we can check if we'd eventually end back
* at the current aircraft.
*
* Note that we should consider the situation where we are actually checking aircraft
}
if (i == activeTraffic.end() || (trafficSize == 0)) {
SG_LOG(SG_GENERAL, SG_ALERT,
- "AI error: Trying to access non-existing aircraft in FGGroundNetwork::checkForCircularWaits");
+ "AI error: Trying to access non-existing aircraft in FGGroundNetwork::checkForCircularWaits at " << SG_ORIGIN);
}
current = i;
//printed = true;
TrafficVectorIterator i = activeTraffic.begin();
if (trafficSize) {
- //while ((i->getId() != id) && i != activeTraffic.end())
+ //while ((i->getId() != id) && i != activeTraffic.end())
while (i != activeTraffic.end()) {
if (i->getId() == target) {
break;
// actually this trap isn't as impossible as it first seemed:
// the setWaitsForID(id) is set to current when the aircraft
- // is waiting for the user controlled aircraft.
+ // is waiting for the user controlled aircraft.
//if (current->getId() == other->getId()) {
// cerr << "Caught the impossible trap" << endl;
// cerr << "Current = " << current->getId() << endl;
if (current->getId() == other->getId())
return false;
//}
- //cerr << current->getCallSign() << " (" << current->getId() << ") " << " -> " << other->getCallSign()
+ //cerr << current->getCallSign() << " (" << current->getId() << ") " << " -> " << other->getCallSign()
// << " (" << other->getId() << "); " << endl;;
//current = other;
}
}
if (i == activeTraffic.end() || (activeTraffic.size() == 0)) {
SG_LOG(SG_GENERAL, SG_ALERT,
- "AI error: checking ATC instruction for aircraft without traffic record");
+ "AI error: checking ATC instruction for aircraft without traffic record at " << SG_ORIGIN);
} else {
return i->hasInstruction();
}
}
if (i == activeTraffic.end() || (activeTraffic.size() == 0)) {
SG_LOG(SG_GENERAL, SG_ALERT,
- "AI error: requesting ATC instruction for aircraft without traffic record");
+ "AI error: requesting ATC instruction for aircraft without traffic record at " << SG_ORIGIN);
} else {
return i->getInstruction();
}
return FGATCInstruction();
}
+
+// Note that this function is copied from simgear. for maintanance purposes, it's probabtl better to make a general function out of that.
+static void WorldCoordinate(osg::Matrix& obj_pos, double lat,
+ double lon, double elev, double hdg, double slope)
+{
+ SGGeod geod = SGGeod::fromDegM(lon, lat, elev);
+ obj_pos = makeZUpFrame(geod);
+ // hdg is not a compass heading, but a counter-clockwise rotation
+ // around the Z axis
+ obj_pos.preMult(osg::Matrix::rotate(hdg * SGD_DEGREES_TO_RADIANS,
+ 0.0, 0.0, 1.0));
+ obj_pos.preMult(osg::Matrix::rotate(slope * SGD_DEGREES_TO_RADIANS,
+ 0.0, 1.0, 0.0));
+}
+
+
+
+
+void FGGroundNetwork::render(bool visible)
+{
+
+ SGMaterialLib *matlib = globals->get_matlib();
+ if (group) {
+ //int nr = ;
+ globals->get_scenery()->get_scene_graph()->removeChild(group);
+ //while (group->getNumChildren()) {
+ // cerr << "Number of children: " << group->getNumChildren() << endl;
+ //simgear::EffectGeode* geode = (simgear::EffectGeode*) group->getChild(0);
+ //osg::MatrixTransform *obj_trans = (osg::MatrixTransform*) group->getChild(0);
+ //geode->releaseGLObjects();
+ //group->removeChild(geode);
+ //delete geode;
+ group = 0;
+ }
+ if (visible) {
+ group = new osg::Group;
+ FGScenery * local_scenery = globals->get_scenery();
+ // double elevation_meters = 0.0;
+// double elevation_feet = 0.0;
+ time_t now = time(NULL) + fgGetLong("/sim/time/warp");
+ //for ( FGTaxiSegmentVectorIterator i = segments.begin(); i != segments.end(); i++) {
+ //double dx = 0;
+ for (TrafficVectorIterator i = activeTraffic.begin(); i != activeTraffic.end(); i++) {
+ // Handle start point
+ int pos = i->getCurrentPosition() - 1;
+ if (pos >= 0) {
+
+ SGGeod start(SGGeod::fromDeg((i->getLongitude()), (i->getLatitude())));
+ SGGeod end (SGGeod::fromDeg(segments[pos]->getEnd()->getLongitude(), segments[pos]->getEnd()->getLatitude()));
+
+ double length = SGGeodesy::distanceM(start, end);
+ //heading = SGGeodesy::headingDeg(start->getGeod(), end->getGeod());
+
+ double az2, heading; //, distanceM;
+ SGGeodesy::inverse(start, end, heading, az2, length);
+ double coveredDistance = length * 0.5;
+ SGGeod center;
+ SGGeodesy::direct(start, heading, coveredDistance, center, az2);
+ //cerr << "Active Aircraft : Centerpoint = (" << center.getLatitudeDeg() << ", " << center.getLongitudeDeg() << "). Heading = " << heading << endl;
+ ///////////////////////////////////////////////////////////////////////////////
+ // Make a helper function out of this
+ osg::Matrix obj_pos;
+ osg::MatrixTransform *obj_trans = new osg::MatrixTransform;
+ obj_trans->setDataVariance(osg::Object::STATIC);
+ // Experimental: Calculate slope here, based on length, and the individual elevations
+ double elevationStart;
+ if (isUserAircraft((i)->getAircraft())) {
+ elevationStart = fgGetDouble("/position/ground-elev-m");
+ } else {
+ elevationStart = ((i)->getAircraft()->_getAltitude());
+ }
+ double elevationEnd = segments[pos]->getEnd()->getElevationM(parent->getElevation()*SG_FEET_TO_METER);
+ //cerr << "Using elevation " << elevationEnd << endl;
+
+ if ((elevationEnd == 0) || (elevationEnd = parent->getElevation())) {
+ SGGeod center2 = end;
+ center2.setElevationM(SG_MAX_ELEVATION_M);
+ if (local_scenery->get_elevation_m( center2, elevationEnd, NULL )) {
+// elevation_feet = elevationEnd * SG_METER_TO_FEET + 0.5;
+ //elevation_meters += 0.5;
+ }
+ else {
+ elevationEnd = parent->getElevation();
+ }
+ segments[pos]->getEnd()->setElevation(elevationEnd);
+ }
+ double elevationMean = (elevationStart + elevationEnd) / 2.0;
+ double elevDiff = elevationEnd - elevationStart;
+
+ double slope = atan2(elevDiff, length) * SGD_RADIANS_TO_DEGREES;
+
+ //cerr << "1. Using mean elevation : " << elevationMean << " and " << slope << endl;
+
+ WorldCoordinate( obj_pos, center.getLatitudeDeg(), center.getLongitudeDeg(), elevationMean+ 0.5, -(heading), slope );
+
+ obj_trans->setMatrix( obj_pos );
+ //osg::Vec3 center(0, 0, 0)
+
+ float width = length /2.0;
+ osg::Vec3 corner(-width, 0, 0.25f);
+ osg::Vec3 widthVec(2*width + 1, 0, 0);
+ osg::Vec3 heightVec(0, 1, 0);
+ osg::Geometry* geometry;
+ geometry = osg::createTexturedQuadGeometry(corner, widthVec, heightVec);
+ simgear::EffectGeode* geode = new simgear::EffectGeode;
+ geode->setName("test");
+ geode->addDrawable(geometry);
+ //osg::Node *custom_obj;
+ SGMaterial *mat;
+ if (segments[pos]->hasBlock(now)) {
+ mat = matlib->find("UnidirectionalTaperRed");
+ } else {
+ mat = matlib->find("UnidirectionalTaperGreen");
+ }
+ if (mat)
+ geode->setEffect(mat->get_effect());
+ obj_trans->addChild(geode);
+ // wire as much of the scene graph together as we can
+ //->addChild( obj_trans );
+ group->addChild( obj_trans );
+ /////////////////////////////////////////////////////////////////////
+ } else {
+ //cerr << "BIG FAT WARNING: current position is here : " << pos << endl;
+ }
+ for (intVecIterator j = (i)->getIntentions().begin(); j != (i)->getIntentions().end(); j++) {
+ osg::Matrix obj_pos;
+ int k = (*j)-1;
+ if (k >= 0) {
+ osg::MatrixTransform *obj_trans = new osg::MatrixTransform;
+ obj_trans->setDataVariance(osg::Object::STATIC);
+
+ // Experimental: Calculate slope here, based on length, and the individual elevations
+ double elevationStart = segments[k]->getStart()->getElevationM(parent->getElevation()*SG_FEET_TO_METER);
+ double elevationEnd = segments[k]->getEnd ()->getElevationM(parent->getElevation()*SG_FEET_TO_METER);
+ if ((elevationStart == 0) || (elevationStart == parent->getElevation())) {
+ SGGeod center2 = segments[k]->getStart()->getGeod();
+ center2.setElevationM(SG_MAX_ELEVATION_M);
+ if (local_scenery->get_elevation_m( center2, elevationStart, NULL )) {
+// elevation_feet = elevationStart * SG_METER_TO_FEET + 0.5;
+ //elevation_meters += 0.5;
+ }
+ else {
+ elevationStart = parent->getElevation();
+ }
+ segments[k]->getStart()->setElevation(elevationStart);
+ }
+ if ((elevationEnd == 0) || (elevationEnd == parent->getElevation())) {
+ SGGeod center2 = segments[k]->getEnd()->getGeod();
+ center2.setElevationM(SG_MAX_ELEVATION_M);
+ if (local_scenery->get_elevation_m( center2, elevationEnd, NULL )) {
+// elevation_feet = elevationEnd * SG_METER_TO_FEET + 0.5;
+ //elevation_meters += 0.5;
+ }
+ else {
+ elevationEnd = parent->getElevation();
+ }
+ segments[k]->getEnd()->setElevation(elevationEnd);
+ }
+
+ double elevationMean = (elevationStart + elevationEnd) / 2.0;
+ double elevDiff = elevationEnd - elevationStart;
+ double length = segments[k]->getLength();
+ double slope = atan2(elevDiff, length) * SGD_RADIANS_TO_DEGREES;
+
+ // cerr << "2. Using mean elevation : " << elevationMean << " and " << slope << endl;
+
+
+ WorldCoordinate( obj_pos, segments[k]->getLatitude(), segments[k]->getLongitude(), elevationMean+ 0.5, -(segments[k]->getHeading()), slope );
+
+ obj_trans->setMatrix( obj_pos );
+ //osg::Vec3 center(0, 0, 0)
+
+ float width = segments[k]->getLength() /2.0;
+ osg::Vec3 corner(-width, 0, 0.25f);
+ osg::Vec3 widthVec(2*width + 1, 0, 0);
+ osg::Vec3 heightVec(0, 1, 0);
+ osg::Geometry* geometry;
+ geometry = osg::createTexturedQuadGeometry(corner, widthVec, heightVec);
+ simgear::EffectGeode* geode = new simgear::EffectGeode;
+ geode->setName("test");
+ geode->addDrawable(geometry);
+ //osg::Node *custom_obj;
+ SGMaterial *mat;
+ if (segments[k]->hasBlock(now)) {
+ mat = matlib->find("UnidirectionalTaperRed");
+ } else {
+ mat = matlib->find("UnidirectionalTaperGreen");
+ }
+ if (mat)
+ geode->setEffect(mat->get_effect());
+ obj_trans->addChild(geode);
+ // wire as much of the scene graph together as we can
+ //->addChild( obj_trans );
+ group->addChild( obj_trans );
+ }
+ }
+ //dx += 0.1;
+ }
+ globals->get_scenery()->get_scene_graph()->addChild(group);
+ }
+}
+
+string FGGroundNetwork::getName() {
+ return string(parent->getId() + "-ground");
+}
+
+void FGGroundNetwork::update(double dt)
+{
+ time_t now = time(NULL) + fgGetLong("/sim/time/warp");
+ for (FGTaxiSegmentVectorIterator tsi = segments.begin(); tsi != segments.end(); tsi++) {
+ (*tsi)->unblock(now);
+ }
+ int priority = 1;
+ //sort(activeTraffic.begin(), activeTraffic.end(), compare_trafficrecords);
+ // Handle traffic that is under ground control first; this way we'll prevent clutter at the gate areas.
+ // Don't allow an aircraft to pushback when a taxiing aircraft is currently using part of the intended route.
+ for (TrafficVectorIterator i = parent->getDynamics()->getStartupController()->getActiveTraffic().begin();
+ i != parent->getDynamics()->getStartupController()->getActiveTraffic().end(); i++) {
+ i->allowPushBack();
+ i->setPriority(priority++);
+ // in meters per second;
+ double vTaxi = (i->getAircraft()->getPerformance()->vTaxi() * SG_NM_TO_METER) / 3600;
+ if (i->isActive(0)) {
+
+ // Check for all active aircraft whether it's current pos segment is
+ // an opposite of one of the departing aircraft's intentions
+ for (TrafficVectorIterator j = activeTraffic.begin(); j != activeTraffic.end(); j++) {
+ int pos = j->getCurrentPosition();
+ if (pos > 0) {
+ FGTaxiSegment *seg = segments[pos-1]->opposite();
+ if (seg) {
+ int posReverse = seg->getIndex();
+ for (intVecIterator k = i->getIntentions().begin(); k != i->getIntentions().end(); k++) {
+ if ((*k) == posReverse) {
+ i->denyPushBack();
+ segments[posReverse-1]->block(i->getId(), now, now);
+ }
+ }
+ }
+ }
+ }
+ // if the current aircraft is still allowed to pushback, we can start reserving a route for if by blocking all the entry taxiways.
+ if (i->pushBackAllowed()) {
+ double length = 0;
+ int pos = i->getCurrentPosition();
+ if (pos > 0) {
+ FGTaxiSegment *seg = segments[pos-1];
+ FGTaxiNode *node = seg->getEnd();
+ length = seg->getLength();
+ for (FGTaxiSegmentVectorIterator tsi = segments.begin(); tsi != segments.end(); tsi++) {
+ if (((*tsi)->getEnd() == node) && ((*tsi) != seg)) {
+ (*tsi)->block(i->getId(), now, now);
+ }
+ }
+ }
+ for (intVecIterator j = i->getIntentions().begin(); j != i->getIntentions().end(); j++) {
+ int pos = (*j);
+ if (pos > 0) {
+ FGTaxiSegment *seg = segments[pos-1];
+ FGTaxiNode *node = seg->getEnd();
+ length += seg->getLength();
+ time_t blockTime = now + (length / vTaxi);
+ for (FGTaxiSegmentVectorIterator tsi = segments.begin(); tsi != segments.end(); tsi++) {
+ if (((*tsi)->getEnd() == node) && ((*tsi) != seg)) {
+ (*tsi)->block(i->getId(), blockTime-30, now);
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ for (TrafficVectorIterator i = activeTraffic.begin(); i != activeTraffic.end(); i++) {
+ double length = 0;
+ double vTaxi = (i->getAircraft()->getPerformance()->vTaxi() * SG_NM_TO_METER) / 3600;
+ i->setPriority(priority++);
+ int pos = i->getCurrentPosition();
+ if (pos > 0) {
+ length = segments[pos-1]->getLength();
+ if (segments[pos-1]->hasBlock(now)) {
+ //SG_LOG(SG_GENERAL, SG_ALERT, "Taxiway incursion for AI aircraft" << i->getAircraft()->getCallSign());
+ }
+
+ }
+ intVecIterator ivi;
+ for (ivi = i->getIntentions().begin(); ivi != i->getIntentions().end(); ivi++) {
+ int segIndex = (*ivi);
+ if (segIndex > 0) {
+ if (segments[segIndex-1]->hasBlock(now))
+ break;
+ }
+ }
+ //after this, ivi points just behind the last valid unblocked taxi segment.
+ for (intVecIterator j = i->getIntentions().begin(); j != ivi; j++) {
+ int pos = (*j);
+ if (pos > 0) {
+ FGTaxiSegment *seg = segments[pos-1];
+ FGTaxiNode *node = seg->getEnd();
+ length += seg->getLength();
+ for (FGTaxiSegmentVectorIterator tsi = segments.begin(); tsi != segments.end(); tsi++) {
+ if (((*tsi)->getEnd() == node) && ((*tsi) != seg)) {
+ time_t blockTime = now + (length / vTaxi);
+ (*tsi)->block(i->getId(), blockTime - 30, now);
+ }
+ }
+ }
+ }
+ }
+}
+
projects / flightgear.git / blobdiff