]> git.mxchange.org Git - flightgear.git/blobdiff - src/ATC/AIMgr.cxx
Harald JOHNSEN:
[flightgear.git] / src / ATC / AIMgr.cxx
index c27fb5ce43417c4d5273c75c7b24adb6c9d7c283..629d5d97b09f1d4db7c36233c7c64d5a93d011ec 100644 (file)
 #  include <dirent.h>          // for directory reading
 #endif
 
-#ifdef FG_WEATHERCM
-# include <WeatherCM/FGLocalWeatherDatabase.h>
-#else
-# include <Environment/environment_mgr.hxx>
-# include <Environment/environment.hxx>
-#endif
+#include <Environment/environment_mgr.hxx>
+#include <Environment/environment.hxx>
 
 #include "AIMgr.hxx"
 #include "AILocalTraffic.hxx"
@@ -57,9 +53,12 @@ FGAIMgr::FGAIMgr() {
        // TODO - use the proper user callsign when it becomes user settable.
        removalList.clear();
        activated.clear();
+       _havePiperModel = true;
 }
 
 FGAIMgr::~FGAIMgr() {
+       _defaultModel->deRef();
+       if(_havePiperModel) _piperModel->deRef();
 }
 
 void FGAIMgr::init() {
@@ -76,18 +75,41 @@ void FGAIMgr::init() {
        
        // Load up models at the start to avoid pausing later
        // Hack alert - Hardwired paths!!
-       string planepath = "Aircraft/c172/Models/c172-dpm.ac";
-       _defaultModel = sgLoad3DModel( globals->get_fg_root(),
-                                         planepath.c_str(),
-                                         globals->get_props(),
-                                         globals->get_sim_time_sec() );
-                                                                         
+       string planepath = "Aircraft/c172r/Models/c172-dpm.ac";
+       bool _loadedDefaultOK = true;
+       try {
+               _defaultModel = sgLoad3DModel( globals->get_fg_root(),
+                                          planepath.c_str(),
+                                                                          globals->get_props(),
+                                                                          globals->get_sim_time_sec() );
+       } catch(sg_exception& e) {
+               _loadedDefaultOK = false;
+       }
+       
+       if(!_loadedDefaultOK ) {
+               // Just load the same 3D model as the default user plane - that's *bound* to exist!
+               // TODO - implement robust determination of availability of GA AI aircraft models
+               planepath = "Aircraft/c172p/Models/c172p.ac";
+               _defaultModel = sgLoad3DModel( globals->get_fg_root(),
+                                          planepath.c_str(),
+                                                                          globals->get_props(),
+                                                                          globals->get_sim_time_sec() );
+       }
+
        planepath = "Aircraft/pa28-161/Models/pa28-161.ac";
-       _piperModel = sgLoad3DModel( globals->get_fg_root(),
-                                         planepath.c_str(),
-                                         globals->get_props(),
-                                         globals->get_sim_time_sec() );
-                                                                         
+       try {
+               _piperModel = sgLoad3DModel( globals->get_fg_root(),
+                                        planepath.c_str(),
+                                                                        globals->get_props(),
+                                                                        globals->get_sim_time_sec() );
+       } catch(sg_exception& e) {
+               _havePiperModel = false;
+       }
+
+       // We need to keep one ref of the models open to stop ssg deleting them behind our back!
+       _defaultModel->ref();
+       if(_havePiperModel) _piperModel->ref();
+
        // go through the $FG_ROOT/ATC directory and find all *.taxi files
        SGPath path(globals->get_fg_root());
        path.append("ATC/");
@@ -96,50 +118,14 @@ void FGAIMgr::init() {
        string file, f_ident;
        int pos;
        
-       // WARNING - I (DCL) haven't tested this on MSVC - this is simply cribbed from TerraGear
-#ifdef _MSC_VER        
-       long hfile;
-       struct _finddata_t de;
-       string path_str;
-       
-       path_str = dir + "\\*.*";
+       ulDir *d;
+       struct ulDirEnt *de;
        
-       if ( ( hfile = _findfirst( path.c_str(), &de ) ) == -1 ) {
-               SG_LOG(SG_ATC, SG_WARN, "cannot open directory " << dir);
-       } else {                
-               // load all .taxi files
-               do {
-                       file = de.name;
-                       pos = file.find(".");
-                       ext = file.substr(pos + 1);
-                       if(ext == "taxi") {
-                               f_ident = file.substr(0, pos);
-                               FGAirport a;
-                               if(dclFindAirportID(f_ident, &a)) {
-                                       SGBucket sgb(a.longitude, a.latitude);
-                                       int idx = sgb.gen_index();
-                                       if(facilities.find(idx) != facilities.end()) {
-                                               facilities[idx]->push_back(f_ident);
-                                       } else {
-                                               ID_list_type* apts = new ID_list_type;
-                                               apts->push_back(f_ident);
-                                               facilities[idx] = apts;
-                                       }
-                                       SG_LOG(SG_ATC, SG_BULK, "Mapping " << f_ident << " to bucket " << idx); 
-                               }
-                       }
-               } while ( _findnext( hfile, &de ) == 0 );
-       }
-#else
-
-    DIR *d;
-    struct dirent *de;
-
-    if ( (d = opendir( dir.c_str() )) == NULL ) {
+       if ( (d = ulOpenDir( dir.c_str() )) == NULL ) {
                SG_LOG(SG_ATC, SG_WARN, "cannot open directory " << dir);
        } else {
                // load all .taxi files
-               while ( (de = readdir(d)) != NULL ) {
+               while ( (de = ulReadDir(d)) != NULL ) {
                        file = de->d_name;
                        pos = file.find(".");
                        ext = file.substr(pos + 1);
@@ -147,7 +133,7 @@ void FGAIMgr::init() {
                                f_ident = file.substr(0, pos);
                                FGAirport a;
                                if(dclFindAirportID(f_ident, &a)) {
-                                       SGBucket sgb(a.longitude, a.latitude);
+                                       SGBucket sgb(a.getLongitude(), a.getLatitude());
                                        int idx = sgb.gen_index();
                                        if(facilities.find(idx) != facilities.end()) {
                                                facilities[idx]->push_back(f_ident);
@@ -160,10 +146,9 @@ void FGAIMgr::init() {
                                }
                        }
                }               
-               closedir(d);
+               ulCloseDir(d);
        }
-#endif
-       
+
        // See if are in range at startup and activate if necessary
        SearchByPos(15.0);
        
@@ -258,7 +243,7 @@ void FGAIMgr::update(double dt) {
                                bool gen = false;
                                //cout << "Size of list is " << (*it).second.size() << " at " << s << '\n';
                                if((*it).second.size()) {
-                                       FGAIEntity* e = *((*it).second.rbegin());
+                                       FGAIEntity* e = *((*it).second.rbegin());       // Get the last airplane currently scheduled to arrive at this airport.
                                        cd = dclGetHorizontalSeparation(e->GetPos(), dclGetAirportPos(s));
                                        if(cd < (d < 5000 ? 10000 : d + 5000)) {
                                                gen = true;
@@ -270,7 +255,8 @@ void FGAIMgr::update(double dt) {
                                if(gen) {
                                        //cout << "Generating extra traffic at airport " << s << ", at least " << cd << " meters out\n";
                                        //GenerateSimpleAirportTraffic(s, cd);
-                                       GenerateSimpleAirportTraffic(s, cd + 2000.0);   // The random seems a bit wierd - traffic could get far too bunched without the +2000.
+                                       GenerateSimpleAirportTraffic(s, cd + 3000.0);   // The random seems a bit wierd - traffic could get far too bunched without the +3000.
+                                       // TODO - make the anti-random constant variable depending on the ai-traffic level.
                                }
                        }
                        ++it;
@@ -322,6 +308,7 @@ void FGAIMgr::ActivateAirport(string ident) {
        ATC->AIRegisterAirport(ident);
        // TODO - need to start the traffic more randomly
        FGAILocalTraffic* local_traffic = new FGAILocalTraffic;
+       local_traffic->SetModel(_defaultModel); // currently hardwired to cessna.
        //local_traffic->Init(ident, IN_PATTERN, TAKEOFF_ROLL);
        local_traffic->Init(GenerateShortForm(GenerateUniqueCallsign()), ident);
        local_traffic->FlyCircuits(1, true);    // Fly 2 circuits with touch & go in between
@@ -366,31 +353,22 @@ void FGAIMgr::GenerateSimpleAirportTraffic(string ident, double min_dist) {
        bool cessna = true;
        
        // Get the time and only operate VFR in the (approximate) daytime.
-       //SGTime *t = globals->get_time_params();
-       string time_str = fgGetString("sim/time/gmt-string");
-       int loc_time = atoi((time_str.substr(0,3)).c_str());
-       //cout << "gmt_time = " << loc_time << '\n';
-       loc_time += (int)((aptpos.lon() / 360.0) * 24.0);
-       while(loc_time < 0) loc_time += 24;
-       while(loc_time > 24) loc_time -= 24;
+       struct tm *t = globals->get_time_params()->getGmt();
+       int loc_time = t->tm_hour + int(aptpos.lon() / (360.0 / 24.0));
+       while (loc_time < 0)
+               loc_time += 24;
+       while (loc_time >= 24)
+               loc_time -= 24;
+
        //cout << "loc_time = " << loc_time << '\n';
        if(loc_time < 7 || loc_time > 19) return;
        
        // Check that the visibility is OK for IFR operation.
        double visibility;
-       #ifdef FG_WEATHERCM
-       //sgVec3 position = { aptpos.lat(), aptpos.lon(), aptpos.elev() };
-       //FGPhysicalProperty stationweather = WeatherDatabase->get(position);
-       #else
        FGEnvironment stationweather =
             ((FGEnvironmentMgr *)globals->get_subsystem("environment"))
               ->getEnvironment(aptpos.lat(), aptpos.lon(), aptpos.elev());     // TODO - check whether this should take ft or m for elev.
-       #endif
-       #ifdef FG_WEATHERCM
-       visibility = fgGetDouble("/environment/visibility-m");
-       #else
        visibility = stationweather.get_visibility_m();
-       #endif
        // Technically we can do VFR down to 1 mile (1600m) but that's pretty murky!
        //cout << "vis = " << visibility << '\n';
        if(visibility < 3000) return;
@@ -485,11 +463,12 @@ void FGAIMgr::GenerateSimpleAirportTraffic(string ident, double min_dist) {
                        double dir = int(sg_random() * 36);
                        if(dir == 36) dir--;
                        dir *= 10;
+                       
                        if(sg_random() < 0.3) cessna = false;
                        else cessna = true;
                        string s = GenerateShortForm(GenerateUniqueCallsign(), (cessna ? "Cessna-" : "Piper-"));
                        FGAIGAVFRTraffic* t = new FGAIGAVFRTraffic();
-                       t->SetModel(cessna ? _defaultModel : _piperModel);
+                       t->SetModel(cessna ? _defaultModel : (_havePiperModel ? _piperModel : _defaultModel));
                        //cout << "Generating VFR traffic " << s << " inbound to " << ident << " " << ad << " meters out from " << dir << " degrees\n";
                        Point3D tpos = dclUpdatePosition(aptpos, dir, 6.0, ad);
                        if(tpos.elev() > (aptpos.elev() + 3000.0)) tpos.setelev(aptpos.elev() + 3000.0);        // FEET yuk :-(