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() {
58 void FGATCMgr::bind() {
61 void FGATCMgr::unbind() {
64 void FGATCMgr::init() {
65 //cout << "ATCMgr::init called..." << endl;
67 lon_node = fgGetNode("/position/longitude-deg", true);
68 lat_node = fgGetNode("/position/latitude-deg", true);
69 elev_node = fgGetNode("/position/altitude-ft", true);
70 atc_list_itr = atc_list->begin();
72 // Search for connected ATC stations once per 0.8 seconds or so
73 // globals->get_event_mgr()->add( "fgATCSearch()", fgATCSearch,
74 // FGEvent::FG_EVENT_READY, 800);
76 // For some reason the above doesn't compile - including Time/event.hxx stops compilation.
77 // Is this still true after the reorganization of the event managar??
80 // Initialise the ATC Dialogs
81 SG_LOG(SG_ATC, SG_INFO, " ATC Dialog System");
82 current_atcdialog = new FGATCDialog;
83 current_atcdialog->Init();
86 //cout << "ATCmgr::init done!" << endl;
89 void FGATCMgr::update(double dt) {
92 SG_LOG(SG_ATC, SG_WARN, "Warning - ATCMgr::update(...) called before ATCMgr::init()");
95 current_atcdialog->Update(dt);
97 //cout << "Entering update..." << endl;
98 //Traverse the list of active stations.
99 //Only update one class per update step to avoid the whole ATC system having to calculate between frames.
100 //Eventually we should only update every so many steps.
101 //cout << "In FGATCMgr::update - atc_list.size = " << atc_list->size() << endl;
102 if(atc_list->size()) {
103 if(atc_list_itr == atc_list->end()) {
104 atc_list_itr = atc_list->begin();
106 //cout << "Updating " << (*atc_list_itr)->get_ident() << ' ' << (*atc_list_itr)->GetType() << '\n';
107 //cout << "Freq = " << (*atc_list_itr)->get_freq() << '\n';
108 //cout << "Updating...\n";
109 (*atc_list_itr).second->Update(dt * atc_list->size());
110 //cout << "Done ATC update..." << endl;
115 //cout << "ATC_LIST: " << atc_list->size() << ' ';
116 for(atc_list_iterator it = atc_list->begin(); it != atc_list->end(); it++) {
117 cout << (*it)->get_ident() << ' ';
122 // Search the tuned frequencies every now and then - this should be done with the event scheduler
123 static int i = 0; // Very ugly - but there should only ever be one instance of FGATCMgr.
125 //cout << "About to search navcomm1" << endl;
126 FreqSearch("comm", 0);
127 FreqSearch("nav", 0);
130 //cout << "About to search navcomm2" << endl;
131 FreqSearch("comm", 1);
132 FreqSearch("nav", 1);
137 //cout << "comm1 type = " << comm_type[0] << '\n';
138 //cout << "Leaving update..." << endl;
141 typedef map<string,int> MSI;
143 void FGATCMgr::ZapOtherService(const string ncunit, const string svc_name){
144 for (atc_list_iterator svc = atc_list->begin(); svc != atc_list->end(); svc++) {
146 if (svc->first != svc_name) {
147 MSI &actv = svc->second->active_on;
148 // OK, we have found some OTHER service;
149 // see if it is (was) active on our unit:
150 if (!actv.count(ncunit)) continue;
151 //cout << "Eradicating '" << svc->first << "' from: " << ncunit << endl;
154 //cout << "Eradicating service: '" << svc->first << "'" << endl;
155 svc->second->SetNoDisplay();
156 svc->second->Update(0); // one last update
157 SG_LOG(SG_GENERAL, SG_INFO, "would have erased ATC service:" << svc->second->get_name()<< "/"
158 << svc->second->get_ident());
159 // delete svc->second;
160 atc_list->erase(svc);
161 // ALL pointers into the ATC list are now invalid,
162 // so let's reset them:
163 atc_list_itr = atc_list->begin();
165 break; // cannot be duplicates in the active list
170 // Find in list - return a currently active ATC pointer given ICAO code and type
171 // Return NULL if the given service is not in the list
172 // - *** THE CALLING FUNCTION MUST CHECK FOR THIS ***
173 FGATC* FGATCMgr::FindInList(const string& id, const atc_type& tp) {
174 string ndx = id + decimalNumeral(tp);
175 if (!atc_list->count(ndx)) return 0;
176 return (*atc_list)[ndx];
179 // Return a pointer to an appropriate voice for a given type of ATC
180 // creating the voice if necessary - ie. make sure exactly one copy
181 // of every voice in use exists in memory.
183 // TODO - in the future this will get more complex and dole out country/airport
184 // specific voices, and possible make sure that the same voice doesn't get used
185 // at different airports in quick succession if a large enough selection are available.
186 FGATCVoice* FGATCMgr::GetVoicePointer(const atc_type& type) {
187 // TODO - implement me better - maintain a list of loaded voices and other voices!!
190 case ATIS: case AWOS:
191 #ifdef ENABLE_AUDIO_SUPPORT
192 // Delayed loading fo all available voices, needed because the
193 // soundmanager might not be initialized (at all) at this point.
194 // For now we'll do one hardwired one
196 /* I've loaded the voice even if /sim/sound/pause is true
197 * since I know no way of forcing load of the voice if the user
198 * subsequently switches /sim/sound/audible to true.
199 * (which is the right thing to do -- CLO) :-)
201 if (!voiceOK && fgGetBool("/sim/sound/working")) {
204 voiceOK = v1->LoadVoice("default");
206 } catch ( sg_io_exception & e) {
208 SG_LOG(SG_ATC, SG_ALERT, "Unable to load default voice : "
209 << e.getFormattedMessage().c_str());
234 // Search for ATC stations by frequency
235 void FGATCMgr::FreqSearch(const string navcomm, const int unit) {
238 string ncunit = navcomm + "[" + decimalNumeral(unit) + "]";
239 string commbase = "/instrumentation/" + ncunit;
240 string commfreq = commbase + "/frequencies/selected-mhz";
241 SGPropertyNode_ptr comm_node = fgGetNode(commfreq.c_str(), false);
243 //cout << "FreqSearch: " << ncunit
244 // << " node: " << comm_node << endl;
245 if (!comm_node) return; // no such radio unit
248 // Note: 122.375 must be rounded DOWN to 12237
249 // in order to be consistent with apt.dat et cetera.
250 int freqKhz = static_cast<int>(comm_node->getDoubleValue() * 100.0 + 0.25);
252 _aircraftPos = SGGeod::fromDegFt(lon_node->getDoubleValue(),
253 lat_node->getDoubleValue(), elev_node->getDoubleValue());
255 class RangeFilter : public CommStation::Filter {
257 RangeFilter( const SGGeod & pos ) :
258 CommStation::Filter(),
259 _cart(SGVec3d::fromGeod(pos)),
263 virtual bool pass(FGPositioned* aPos) const
265 flightgear::CommStation * stn = dynamic_cast<flightgear::CommStation*>(aPos);
266 if( NULL == stn ) return false;
267 // do the range check in cartesian space, since the distances are potentially
268 // large enough that the geodetic functions become unstable
269 // (eg, station on opposite side of the planet)
270 double rangeM = SGMiscd::max( stn->rangeNm(), 10.0 ) * SG_NM_TO_METER;
271 double d2 = distSqr( aPos->cart(), _cart);
273 return d2 <= (rangeM * rangeM);
280 RangeFilter rangeFilter(_aircraftPos );
282 CommStation* sta = CommStation::findByFreq(freqKhz, _aircraftPos, &rangeFilter );
284 ZapOtherService(ncunit, "x x x");
288 // Get rid of any *other* service that was on this radio unit:
289 FGPositioned::Type ty = sta->type();
290 string svc_name = sta->ident() + FGPositioned::nameForType(ty);
291 ZapOtherService(ncunit, svc_name);
292 // See if the service already exists, possibly connected to
293 // some other radio unit:
294 if (atc_list->count(svc_name)) {
295 // make sure the service knows it's tuned on this radio:
296 FGATC* svc = (*atc_list)[svc_name];
297 svc->active_on[ncunit] = 1;
302 // This was a switch-case statement but the compiler didn't like
303 // the new variable creation with it.
304 if(ty == FGPositioned::FREQ_ATIS || ty == FGPositioned::FREQ_AWOS) {
305 (*atc_list)[svc_name] = new FGATIS;
306 FGATC* svc = (*atc_list)[svc_name];
308 svc->SetStation(sta);
309 svc->active_on[ncunit] = 1;