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flightgear/src/Airports/trafficcontrol.cxx
durk 4238a46faa Thomas Foerster: Made FGParking a subclass of FGTaxiNode
Fixed bug due to longstanding inconsistency in FGAirport
                 getter functions return types.
Durk Talsma:     Fixed traffic record initialization bug that occured
                 when taxiing traffic was waiting for traffic on runway
2007-07-05 19:00:59 +00:00

515 lines
16 KiB
C++

// trafficrecord.cxx - Implementation of AIModels ATC code.
//
// Written by Durk Talsma, started September 2006.
//
// Copyright (C) 2006 Durk Talsma.
//
// 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; either version 2 of the
// License, or (at your option) any later version.
//
// 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 Street, Fifth Floor, Boston, MA 02110-1301, USA.
//
// $Id$
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include "trafficcontrol.hxx"
#include <AIModel/AIFlightPlan.hxx>
/***************************************************************************
* FGTrafficRecord
**************************************************************************/
FGTrafficRecord::FGTrafficRecord() :
id(0), waitsForId(0),
currentPos(0),
leg(0),
latitude(0),
longitude(0),
heading(0),
speed(0),
altitude(0),
radius(0) {
}
void FGTrafficRecord::setPositionAndIntentions(int pos, FGAIFlightPlan *route)
{
currentPos = pos;
if (intentions.size()) {
intVecIterator i = intentions.begin();
if ((*i) != pos) {
SG_LOG(SG_GENERAL, SG_ALERT, "Error in FGTrafficRecord::setPositionAndIntentions");
//cerr << "Pos : " << pos << " Curr " << *(intentions.begin()) << endl;
for (intVecIterator i = intentions.begin(); i != intentions.end() ; i++) {
//cerr << (*i) << " ";
}
//cerr << endl;
}
intentions.erase(i);
} else {
//int legNr, routeNr;
//FGAIFlightPlan::waypoint* const wpt= route->getCurrentWaypoint();
int size = route->getNrOfWayPoints();
//cerr << "Setting pos" << pos << " ";
//cerr << "setting intentions ";
for (int i = 0; i < size; i++) {
int val = route->getRouteIndex(i);
//cerr << val<< " ";
if ((val) && (val != pos))
{
intentions.push_back(val);
//cerr << "[set] ";
}
}
//cerr << endl;
//while (route->next(&legNr, &routeNr)) {
//intentions.push_back(routeNr);
//}
//route->rewind(currentPos);
}
//exit(1);
}
bool FGTrafficRecord::checkPositionAndIntentions(FGTrafficRecord &other)
{
bool result = false;
//cerr << "Start check 1" << endl;
if (currentPos == other.currentPos)
{
//cerr << callsign << ": Check Position and intentions: we are on the same taxiway" << other.callsign << "Index = " << currentPos << endl;
result = true;
}
// else if (other.intentions.size())
// {
// cerr << "Start check 2" << endl;
// intVecIterator i = other.intentions.begin();
// while (!((i == other.intentions.end()) || ((*i) == currentPos)))
// i++;
// if (i != other.intentions.end()) {
// cerr << "Check Position and intentions: current matches other.intentions" << endl;
// result = true;
// }
else if (intentions.size()) {
//cerr << "Start check 3" << endl;
intVecIterator i = intentions.begin();
//while (!((i == intentions.end()) || ((*i) == other.currentPos)))
while (i != intentions.end()) {
if ((*i) == other.currentPos) {
break;
}
i++;
}
if (i != intentions.end()) {
//cerr << callsign << ": Check Position and intentions: .other.current matches" << other.callsign << "Index = " << (*i) << endl;
result = true;
}
}
//cerr << "Done !!" << endl;
return result;
}
void FGTrafficRecord::setPositionAndHeading(double lat, double lon, double hdg,
double spd, double alt)
{
latitude = lat;
longitude = lon;
heading = hdg;
speed = spd;
altitude = alt;
}
int FGTrafficRecord::crosses(FGGroundNetwork *net, FGTrafficRecord &other)
{
if (checkPositionAndIntentions(other) || (other.checkPositionAndIntentions(*this)))
return -1;
intVecIterator i, j;
int currentTargetNode = 0, otherTargetNode = 0;
if (currentPos > 0)
currentTargetNode = net->findSegment(currentPos )->getEnd()->getIndex(); // OKAY,...
if (other.currentPos > 0)
otherTargetNode = net->findSegment(other.currentPos)->getEnd()->getIndex(); // OKAY,...
if ((currentTargetNode == otherTargetNode) && currentTargetNode > 0)
return currentTargetNode;
if (intentions.size())
{
for (i = intentions.begin(); i != intentions.end(); i++)
{
if ((*i) > 0) {
if ((currentTargetNode == net->findSegment(*i)->getEnd()->getIndex()))
{
//cerr << "Current crosses at " << currentTargetNode <<endl;
return currentTargetNode;
}
}
}
}
if (other.intentions.size())
{
for (i = other.intentions.begin(); i != other.intentions.end(); i++)
{
if ((*i) > 0) {
if (otherTargetNode == net->findSegment(*i)->getEnd()->getIndex())
{
//cerr << "Other crosses at " << currentTargetNode <<endl;
return otherTargetNode;
}
}
}
}
if (intentions.size() && other.intentions.size())
{
for (i = intentions.begin(); i != intentions.end(); i++)
{
for (j = other.intentions.begin(); j != other.intentions.end(); j++)
{
//cerr << "finding segment " << *i << " and " << *j << endl;
if (((*i) > 0) && ((*j) > 0)) {
currentTargetNode = net->findSegment(*i)->getEnd()->getIndex();
otherTargetNode = net->findSegment(*j)->getEnd()->getIndex();
if (currentTargetNode == otherTargetNode)
{
//cerr << "Routes will cross at " << currentTargetNode << endl;
return currentTargetNode;
}
}
}
}
}
return -1;
}
bool FGTrafficRecord::onRoute(FGGroundNetwork *net, FGTrafficRecord &other)
{
int node = -1, othernode = -1;
if (currentPos >0)
node = net->findSegment(currentPos)->getEnd()->getIndex();
if (other.currentPos > 0)
othernode = net->findSegment(other.currentPos)->getEnd()->getIndex();
if ((node == othernode) && (node != -1))
return true;
if (other.intentions.size())
{
for (intVecIterator i = other.intentions.begin(); i != other.intentions.end(); i++)
{
if (*i > 0)
{
othernode = net->findSegment(*i)->getEnd()->getIndex();
if ((node == othernode) && (node > -1))
return true;
}
}
}
//if (other.currentPos > 0)
// othernode = net->findSegment(other.currentPos)->getEnd()->getIndex();
//if (intentions.size())
// {
// for (intVecIterator i = intentions.begin(); i != intentions.end(); i++)
// {
// if (*i > 0)
// {
// node = net->findSegment(*i)->getEnd()->getIndex();
// if ((node == othernode) && (node > -1))
// return true;
// }
// }
// }
return false;
}
bool FGTrafficRecord::isOpposing (FGGroundNetwork *net, FGTrafficRecord &other, int node)
{
// Check if current segment is the reverse segment for the other aircraft
FGTaxiSegment *opp;
//cerr << "Current segment " << currentPos << endl;
if ((currentPos > 0) && (other.currentPos > 0))
{
opp = net->findSegment(currentPos)->opposite();
if (opp) {
if (opp->getIndex() == other.currentPos)
return true;
}
for (intVecIterator i = intentions.begin(); i != intentions.end(); i++)
{
if (opp = net->findSegment(other.currentPos)->opposite())
{
if ((*i) > 0)
if (opp->getIndex() == net->findSegment(*i)->getIndex())
{
if (net->findSegment(*i)->getStart()->getIndex() == node) {
{
//cerr << "Found the node " << node << endl;
return true;
}
}
}
}
if (other.intentions.size())
{
for (intVecIterator j = other.intentions.begin(); j != other.intentions.end(); j++)
{
// cerr << "Current segment 1 " << (*i) << endl;
if ((*i) > 0) {
if (opp = net->findSegment(*i)->opposite())
{
if (opp->getIndex() ==
net->findSegment(*j)->getIndex())
{
//cerr << "Nodes " << net->findSegment(*i)->getIndex()
// << " and " << net->findSegment(*j)->getIndex()
// << " are opposites " << endl;
if (net->findSegment(*i)->getStart()->getIndex() == node) {
{
//cerr << "Found the node " << node << endl;
return true;
}
}
}
}
}
}
}
}
}
return false;
}
void FGTrafficRecord::setSpeedAdjustment(double spd)
{
instruction.setChangeSpeed(true);
instruction.setSpeed(spd);
}
void FGTrafficRecord::setHeadingAdjustment(double heading)
{
instruction.setChangeHeading(true);
instruction.setHeading(heading);
}
/***************************************************************************
* FGATCInstruction
*
**************************************************************************/
FGATCInstruction::FGATCInstruction()
{
holdPattern = false;
holdPosition = false;
changeSpeed = false;
changeHeading = false;
changeAltitude = false;
resolveCircularWait = false;
double speed = 0;
double heading = 0;
double alt = 0;
}
bool FGATCInstruction::hasInstruction()
{
return (holdPattern || holdPosition || changeSpeed || changeHeading || changeAltitude || resolveCircularWait);
}
/***************************************************************************
* class FGTowerController
*
**************************************************************************/
FGTowerController::FGTowerController() :
FGATCController()
{
}
//
void FGTowerController::announcePosition(int id, FGAIFlightPlan *intendedRoute, int currentPosition,
double lat, double lon, double heading,
double speed, double alt, double radius, int leg,
string callsign)
{
TrafficVectorIterator i = activeTraffic.begin();
// Search whether 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
if (activeTraffic.size()) {
//while ((i->getId() != id) && i != activeTraffic.end()) {
while (i != activeTraffic.end()) {
if (i->getId() == id) {
break;
}
i++;
}
}
// Add a new TrafficRecord if no one exsists for this aircraft.
if (i == activeTraffic.end() || (activeTraffic.size() == 0)) {
FGTrafficRecord rec;
rec.setId(id);
rec.setPositionAndHeading(lat, lon, heading, speed, alt);
rec.setRunway(intendedRoute->getRunway());
rec.setLeg(leg);
rec.setCallSign(callsign);
activeTraffic.push_back(rec);
} else {
i->setPositionAndHeading(lat, lon, heading, speed, alt);
}
}
void FGTowerController::update(int id, double lat, double lon, double heading, double speed, double alt,
double dt)
{
TrafficVectorIterator i = activeTraffic.begin();
// Search search if the current id has an entry
// This might be faster using a map instead of a vector, but let's start by taking a safe route
TrafficVectorIterator current, closest;
if (activeTraffic.size()) {
//while ((i->getId() != id) && i != activeTraffic.end()) {
while (i != activeTraffic.end()) {
if (i->getId() == id) {
break;
}
i++;
}
}
// // 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");
} else {
i->setPositionAndHeading(lat, lon, heading, speed, alt);
current = i;
}
setDt(getDt() + dt);
// // see if we already have a clearance record for the currently active runway
ActiveRunwayVecIterator rwy = activeRunways.begin();
// again, a map might be more efficient here
if (activeRunways.size()) {
//while ((rwy->getRunwayName() != current->getRunway()) && (rwy != activeRunways.end())) {
while (rwy != activeRunways.end()) {
if (rwy->getRunwayName() == current->getRunway()) {
break;
}
rwy++;
}
}
if (rwy == activeRunways.end()) {
ActiveRunway aRwy(current->getRunway(), id);
activeRunways.push_back(aRwy); // Since there are no clearance records for this runway yet
current->setHoldPosition(false); // Clear the current aircraft to continue
}
else {
// Okay, we have a clearance record for this runway, so check
// whether the clearence ID matches that of the current aircraft
if (id == rwy->getCleared()) {
current->setHoldPosition(false);
} else {
current->setHoldPosition(true);
}
}
}
void FGTowerController::signOff(int id)
{
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
if (activeTraffic.size()) {
//while ((i->getId() != id) && i != activeTraffic.end()) {
while (i != activeTraffic.end()) {
if (i->getId() == id) {
break;
}
i++;
}
}
// If this aircraft has left the runway, we can clear the departure record for this runway
ActiveRunwayVecIterator rwy = activeRunways.begin();
if (activeRunways.size()) {
//while ((rwy->getRunwayName() != i->getRunway()) && (rwy != activeRunways.end())) {
while (rwy != activeRunways.end()) {
if (rwy->getRunwayName() == i->getRunway()) {
break;
}
rwy++;
}
if (rwy != activeRunways.end()) {
rwy = activeRunways.erase(rwy);
} else {
SG_LOG(SG_GENERAL, SG_ALERT, "AI error: Attempting to erase non-existing runway clearance record in FGTowerController::signoff");
}
}
if (i == activeTraffic.end() || (activeTraffic.size() == 0)) {
SG_LOG(SG_GENERAL, SG_ALERT, "AI error: Aircraft without traffic record is signing off from tower");
} else {
i = activeTraffic.erase(i);
}
}
// NOTE:
// IF WE MAKE TRAFFICRECORD A MEMBER OF THE BASE CLASS
// THE FOLLOWING THREE FUNCTIONS: SIGNOFF, HAS INSTRUCTION AND GETINSTRUCTION CAN
// BECOME DEVIRTUALIZED AND BE A MEMBER OF THE BASE ATCCONTROLLER CLASS
// WHICH WOULD SIMPLIFY CODE MAINTENANCE.
// Note that this function is probably obsolete
bool FGTowerController::hasInstruction(int id)
{
TrafficVectorIterator i = activeTraffic.begin();
// Search search if the current id has an entry
// This might be faster using a map instead of a vector, but let's start by taking a safe route
if (activeTraffic.size())
{
//while ((i->getId() != id) && i != activeTraffic.end()) {
while (i != activeTraffic.end()) {
if (i->getId() == id) {
break;
}
i++;
}
}
if (i == activeTraffic.end() || (activeTraffic.size() == 0)) {
SG_LOG(SG_GENERAL, SG_ALERT, "AI error: checking ATC instruction for aircraft without traffic record");
} else {
return i->hasInstruction();
}
return false;
}
FGATCInstruction FGTowerController::getInstruction(int id)
{
TrafficVectorIterator i = activeTraffic.begin();
// Search search if the current id has an entry
// This might be faster using a map instead of a vector, but let's start by taking a safe route
if (activeTraffic.size()) {
//while ((i->getId() != id) && i != activeTraffic.end()) {
while (i != activeTraffic.end()) {
if (i->getId() == id) {
break;
}
i++;
}
}
if (i == activeTraffic.end() || (activeTraffic.size() == 0)) {
SG_LOG(SG_GENERAL, SG_ALERT, "AI error: requesting ATC instruction for aircraft without traffic record");
} else {
return i->getInstruction();
}
return FGATCInstruction();
}