1 // FGTower - a class to provide tower control at towered airports.
3 // Written by David Luff, started March 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., 675 Mass Ave, Cambridge, MA 02139, USA.
24 #include <simgear/compiler.h>
25 #include <simgear/math/point3d.hxx>
26 #include <simgear/misc/sgstream.hxx>
27 #include <simgear/math/sg_geodesy.hxx>
34 #ifndef SG_HAVE_NATIVE_SGI_COMPILERS
39 //#include "ATCmgr.hxx"
42 //DCL - a complete guess for now.
43 #define FG_TOWER_DEFAULT_RANGE 30
45 // Structure for holding details of a plane under tower control.
46 // Not fixed yet - may include more stuff later.
52 TowerPlaneRec(string ID);
53 TowerPlaneRec(Point3D pt);
54 TowerPlaneRec(string ID, Point3D pt);
58 double eta; // minutes
59 double dist_out; // miles from theshold
62 // ought to add time cleared to depart so we can nag if necessary
63 bool longFinalReported;
64 bool longFinalAcknowledged;
66 bool finalAcknowledged;
68 // enum type - light, medium, heavy etc - we need someway of approximating the aircraft type and performance.
71 typedef list < TowerPlaneRec* > tower_plane_rec_list_type;
72 typedef list < TowerPlaneRec* >::iterator tower_plane_rec_list_iterator;
73 typedef list < TowerPlaneRec* >::const_iterator tower_plane_rec_list_const_iterator;
76 class FGTower : public FGATC {
87 void RequestLandingClearance(string ID);
88 void RequestDepartureClearance(string ID);
89 void ReportFinal(string ID);
90 void ReportLongFinal(string ID);
91 void ReportOuterMarker(string ID);
92 void ReportMiddleMarker(string ID);
93 void ReportInnerMarker(string ID);
94 void ReportGoingAround(string ID);
95 void ReportRunwayVacated(string ID);
97 // Parse a literal message to decide which of above it represents.
98 // (a long term project that eventually will hopefully receive the output from voice recognition software.)
99 void LiteralTransmission(string trns, string ID);
101 inline void SetDisplay() {display = true;}
102 inline void SetNoDisplay() {display = false;}
104 inline char get_type() const { return type; }
105 inline double get_lon() const { return lon; }
106 inline double get_lat() const { return lat; }
107 inline double get_elev() const { return elev; }
108 inline double get_x() const { return x; }
109 inline double get_y() const { return y; }
110 inline double get_z() const { return z; }
111 inline int get_freq() const { return freq; }
112 inline int get_range() const { return range; }
113 inline const char* GetIdent() { return ident.c_str(); }
114 inline string get_trans_ident() { return trans_ident; }
115 inline string get_name() { return name; }
116 inline atc_type GetType() { return TOWER; }
118 // Make a request of tower control
119 //void Request(tower_request request);
123 void IssueLandingClearance(TowerPlaneRec* tpr);
124 void IssueGoAround(TowerPlaneRec* tpr);
125 void IssueDepartureClearance(TowerPlaneRec* tpr);
133 bool display; // Flag to indicate whether we should be outputting to the ATC display.
134 bool displaying; // Flag to indicate whether we are outputting to the ATC display.
135 string ident; // Code of the airport its at.
136 string name; // Name generally used in transmissions.
139 // Need a data structure to hold details of the various active planes
140 // or possibly another data structure with the positions of the inactive planes.
141 // Need a data structure to hold outstanding communications from aircraft.
143 // Linked-list of planes on approach ordered with nearest first (timewise).
144 // Includes planes that have landed but not yet vacated runway.
145 // Somewhat analagous to the paper strips used (used to be used?) in real life.
146 tower_plane_rec_list_type appList;
148 // List of departed planes
149 tower_plane_rec_list_type depList;
151 // List of planes waiting to depart
152 tower_plane_rec_list_type holdList;
154 // List of planes on rwy
155 tower_plane_rec_list_type rwyList;
157 // Ground can be separate or handled by tower in real life.
158 // In the program we will always use a separate FGGround class, but we need to know
159 // whether it is supposed to be separate or not to give the correct instructions.
160 bool separateGround; // true if ground control is separate
161 FGGround* groundPtr; // The ground control associated with this airport.
164 // for failure modeling
165 string trans_ident; // transmitted ident
166 bool tower_failed; // tower failed?
168 friend istream& operator>> ( istream&, FGTower& );
173 operator >> ( istream& in, FGTower& t )
181 return in >> skipeol;
183 in >> t.lat >> t.lon >> t.elev >> f >> t.range
191 in.unsetf(ios::skipws);
194 if((ch == '"') || (ch == 0x0A)) {
196 } // we shouldn't need the 0x0A but it makes a nice safely in case someone leaves off the "
198 in.setf(ios::skipws);
199 //cout << "tower.name = " << t.name << '\n';
201 t.freq = (int)(f*100.0 + 0.5);
203 // cout << t.ident << endl;
205 // generate cartesian coordinates
206 Point3D geod( t.lon * SGD_DEGREES_TO_RADIANS, t.lat * SGD_DEGREES_TO_RADIANS, t.elev );
207 Point3D cart = sgGeodToCart( geod );
212 t.trans_ident = t.ident;
213 t.tower_failed = false;
215 return in >> skipeol;
219 #endif //_FG_TOWER_HXX