1 // ATCmgr.cxx - Implementation of FGATCMgr - a global Flightgear ATC manager.
3 // Written by David Luff, started February 2002.
5 // Copyright (C) 2002 David C Luff - david.luff@nottingham.ac.uk
7 // This program is free software; you can redistribute it and/or
8 // modify it under the terms of the GNU General Public License as
9 // published by the Free Software Foundation; either version 2 of the
10 // License, or (at your option) any later version.
12 // This program is distributed in the hope that it will be useful, but
13 // WITHOUT ANY WARRANTY; without even the implied warranty of
14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 // General Public License for more details.
17 // You should have received a copy of the GNU General Public License
18 // along with this program; if not, write to the Free Software
19 // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
25 #include <simgear/misc/sg_path.hxx>
26 #include <simgear/debug/logstream.hxx>
27 #include <simgear/structure/exception.hxx>
29 #include <Airports/simple.hxx>
30 #include <ATC/CommStation.hxx>
31 #include <Main/fg_props.hxx>
34 #include "ATCDialogOld.hxx"
35 #include "ATCutils.hxx"
38 using flightgear::CommStation;
40 FGATCMgr::FGATCMgr() :
42 atc_list(new atc_list_type),
43 #ifdef ENABLE_AUDIO_SUPPORT
51 globals->set_ATC_mgr(this);
54 FGATCMgr::~FGATCMgr() {
55 globals->set_ATC_mgr(NULL);
59 void FGATCMgr::bind() {
62 void FGATCMgr::unbind() {
65 void FGATCMgr::init() {
66 //cout << "ATCMgr::init called..." << endl;
68 lon_node = fgGetNode("/position/longitude-deg", true);
69 lat_node = fgGetNode("/position/latitude-deg", true);
70 elev_node = fgGetNode("/position/altitude-ft", true);
71 atc_list_itr = atc_list->begin();
73 // Search for connected ATC stations once per 0.8 seconds or so
74 // globals->get_event_mgr()->add( "fgATCSearch()", fgATCSearch,
75 // FGEvent::FG_EVENT_READY, 800);
77 // For some reason the above doesn't compile - including Time/event.hxx stops compilation.
78 // Is this still true after the reorganization of the event managar??
81 // Initialise the ATC Dialogs
82 SG_LOG(SG_ATC, SG_INFO, " ATC Dialog System");
83 current_atcdialog = new FGATCDialog;
84 current_atcdialog->Init();
87 //cout << "ATCmgr::init done!" << endl;
90 void FGATCMgr::update(double dt) {
93 SG_LOG(SG_ATC, SG_WARN, "Warning - ATCMgr::update(...) called before ATCMgr::init()");
96 current_atcdialog->Update(dt);
98 //cout << "Entering update..." << endl;
99 //Traverse the list of active stations.
100 //Only update one class per update step to avoid the whole ATC system having to calculate between frames.
101 //Eventually we should only update every so many steps.
102 //cout << "In FGATCMgr::update - atc_list.size = " << atc_list->size() << endl;
103 if(atc_list->size()) {
104 if(atc_list_itr == atc_list->end()) {
105 atc_list_itr = atc_list->begin();
107 //cout << "Updating " << (*atc_list_itr)->get_ident() << ' ' << (*atc_list_itr)->GetType() << '\n';
108 //cout << "Freq = " << (*atc_list_itr)->get_freq() << '\n';
109 //cout << "Updating...\n";
110 (*atc_list_itr).second->Update(dt * atc_list->size());
111 //cout << "Done ATC update..." << endl;
116 //cout << "ATC_LIST: " << atc_list->size() << ' ';
117 for(atc_list_iterator it = atc_list->begin(); it != atc_list->end(); it++) {
118 cout << (*it)->get_ident() << ' ';
123 // Search the tuned frequencies every now and then - this should be done with the event scheduler
124 static int i = 0; // Very ugly - but there should only ever be one instance of FGATCMgr.
126 //cout << "About to search navcomm1" << endl;
127 FreqSearch("comm", 0);
128 FreqSearch("nav", 0);
131 //cout << "About to search navcomm2" << endl;
132 FreqSearch("comm", 1);
133 FreqSearch("nav", 1);
138 //cout << "comm1 type = " << comm_type[0] << '\n';
139 //cout << "Leaving update..." << endl;
142 typedef map<string,int> MSI;
144 void FGATCMgr::ZapOtherService(const string ncunit, const string svc_name){
145 for (atc_list_iterator svc = atc_list->begin(); svc != atc_list->end(); svc++) {
147 if (svc->first != svc_name) {
148 MSI &actv = svc->second->active_on;
149 // OK, we have found some OTHER service;
150 // see if it is (was) active on our unit:
151 if (!actv.count(ncunit)) continue;
152 //cout << "Eradicating '" << svc->first << "' from: " << ncunit << endl;
155 //cout << "Eradicating service: '" << svc->first << "'" << endl;
156 svc->second->SetNoDisplay();
157 svc->second->Update(0); // one last update
158 SG_LOG(SG_ATC, SG_INFO, "would have erased ATC service:" << svc->second->get_name()<< "/"
159 << svc->second->get_ident());
160 // delete svc->second;
161 atc_list->erase(svc);
162 // ALL pointers into the ATC list are now invalid,
163 // so let's reset them:
164 atc_list_itr = atc_list->begin();
166 break; // cannot be duplicates in the active list
171 // Find in list - return a currently active ATC pointer given ICAO code and type
172 // Return NULL if the given service is not in the list
173 // - *** THE CALLING FUNCTION MUST CHECK FOR THIS ***
174 FGATC* FGATCMgr::FindInList(const string& id, const atc_type& tp) {
175 string ndx = id + decimalNumeral(tp);
176 if (!atc_list->count(ndx)) return 0;
177 return (*atc_list)[ndx];
180 // Return a pointer to an appropriate voice for a given type of ATC
181 // creating the voice if necessary - ie. make sure exactly one copy
182 // of every voice in use exists in memory.
184 // TODO - in the future this will get more complex and dole out country/airport
185 // specific voices, and possible make sure that the same voice doesn't get used
186 // at different airports in quick succession if a large enough selection are available.
187 FGATCVoice* FGATCMgr::GetVoicePointer(const atc_type& type) {
188 // TODO - implement me better - maintain a list of loaded voices and other voices!!
191 case ATIS: case AWOS:
192 #ifdef ENABLE_AUDIO_SUPPORT
193 // Delayed loading fo all available voices, needed because the
194 // soundmanager might not be initialized (at all) at this point.
195 // For now we'll do one hardwired one
197 /* I've loaded the voice even if /sim/sound/pause is true
198 * since I know no way of forcing load of the voice if the user
199 * subsequently switches /sim/sound/audible to true.
200 * (which is the right thing to do -- CLO) :-)
202 if (!voiceOK && fgGetBool("/sim/sound/working")) {
205 voiceOK = v1->LoadVoice("default");
207 } catch ( sg_io_exception & e) {
209 SG_LOG(SG_ATC, SG_ALERT, "Unable to load default voice : "
210 << e.getFormattedMessage().c_str());
235 // Search for ATC stations by frequency
236 void FGATCMgr::FreqSearch(const string navcomm, const int unit) {
239 string ncunit = navcomm + "[" + decimalNumeral(unit) + "]";
240 string commbase = "/instrumentation/" + ncunit;
241 string commfreq = commbase + "/frequencies/selected-mhz";
242 SGPropertyNode_ptr comm_node = fgGetNode(commfreq.c_str(), false);
244 //cout << "FreqSearch: " << ncunit
245 // << " node: " << comm_node << endl;
246 if (!comm_node) return; // no such radio unit
249 // Note: 122.375 must be rounded DOWN to 12237
250 // in order to be consistent with apt.dat et cetera.
251 int freqKhz = static_cast<int>(comm_node->getDoubleValue() * 100.0 + 0.25);
253 _aircraftPos = SGGeod::fromDegFt(lon_node->getDoubleValue(),
254 lat_node->getDoubleValue(), elev_node->getDoubleValue());
256 class RangeFilter : public CommStation::Filter {
258 RangeFilter( const SGGeod & pos ) :
259 CommStation::Filter(),
260 _cart(SGVec3d::fromGeod(pos)),
264 virtual bool pass(FGPositioned* aPos) const
266 flightgear::CommStation * stn = dynamic_cast<flightgear::CommStation*>(aPos);
267 if( NULL == stn ) return false;
268 // do the range check in cartesian space, since the distances are potentially
269 // large enough that the geodetic functions become unstable
270 // (eg, station on opposite side of the planet)
271 double rangeM = SGMiscd::max( stn->rangeNm(), 10.0 ) * SG_NM_TO_METER;
272 double d2 = distSqr( aPos->cart(), _cart);
274 return d2 <= (rangeM * rangeM);
281 RangeFilter rangeFilter(_aircraftPos );
283 CommStation* sta = CommStation::findByFreq(freqKhz, _aircraftPos, &rangeFilter );
285 ZapOtherService(ncunit, "x x x");
289 // Get rid of any *other* service that was on this radio unit:
290 FGPositioned::Type ty = sta->type();
291 string svc_name = sta->ident() + FGPositioned::nameForType(ty);
292 ZapOtherService(ncunit, svc_name);
293 // See if the service already exists, possibly connected to
294 // some other radio unit:
295 if (atc_list->count(svc_name)) {
296 // make sure the service knows it's tuned on this radio:
297 FGATC* svc = (*atc_list)[svc_name];
298 svc->active_on[ncunit] = 1;
303 // This was a switch-case statement but the compiler didn't like
304 // the new variable creation with it.
305 if(ty == FGPositioned::FREQ_ATIS || ty == FGPositioned::FREQ_AWOS) {
306 (*atc_list)[svc_name] = new FGATIS;
307 FGATC* svc = (*atc_list)[svc_name];
309 svc->SetStation(sta);
310 svc->active_on[ncunit] = 1;