1 // FGATC - abstract base class for the various actual atc classes
2 // such as FGATIS, FGTower etc.
4 // Written by David Luff, started Feburary 2002.
6 // Copyright (C) 2002 David C. Luff - david.luff@nottingham.ac.uk
8 // This program is free software; you can redistribute it and/or
9 // modify it under the terms of the GNU General Public License as
10 // published by the Free Software Foundation; either version 2 of the
11 // License, or (at your option) any later version.
13 // This program is distributed in the hope that it will be useful, but
14 // WITHOUT ANY WARRANTY; without even the implied warranty of
15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 // General Public License for more details.
18 // You should have received a copy of the GNU General Public License
19 // along with this program; if not, write to the Free Software
20 // Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
25 #include <simgear/constants.h>
26 #include <simgear/compiler.h>
27 #include <simgear/misc/sgstream.hxx>
28 #include <simgear/math/sg_geodesy.hxx>
29 #include <simgear/debug/logstream.hxx>
34 #include "ATCVoice.hxx"
36 SG_USING_STD(ostream);
51 // PlaneRec - a structure holding ATC-centric details of planes under control
52 // This might move or change eventually
59 // Possible types of ATC type that the radios may be tuned to.
60 // INVALID implies not tuned in to anything.
71 const int ATC_NUM_TYPES = 7;
73 // DCL - new experimental ATC data store
76 // I've deliberately used float instead of double here to keep the size down - we'll be storing thousands of these in memory.
77 // In fact, we could probably ditch x, y and z and generate on the fly as needed.
78 // On the other hand, we'll probably end up reading this data directly from the DAFIF eventually anyway!!
82 unsigned short int freq;
84 unsigned short int range;
89 // perhaps we could use an FGRunway instead of this.
90 // That wouldn't cache the orthopos though.
91 struct RunwayDetails {
92 Point3D threshold_pos;
93 Point3D end1ortho; // ortho projection end1 (the threshold ATM)
94 Point3D end2ortho; // ortho projection end2 (the take off end in the current hardwired scheme)
95 double hdg; // true runway heading
96 double length; // In *METERS*
97 double width; // ditto
99 int patternDirection; // -1 for left, 1 for right
102 ostream& operator << (ostream& os, atc_type atc);
111 // Run the internal calculations
112 // Derived classes should call this method from their own Update methods if they
113 // wish to use the response timer functionality.
114 virtual void Update(double dt);
116 // Recieve a coded callback from the ATC menu system based on the user's selection
117 virtual void ReceiveUserCallback(int code);
119 // Add plane to a stack
120 virtual void AddPlane(string pid);
122 // Remove plane from stack
123 virtual int RemovePlane();
125 // Indicate that this instance should output to the display if appropriate
126 inline void SetDisplay() { _display = true; }
128 // Indicate that this instance should not output to the display
129 inline void SetNoDisplay() { _display = false; }
131 // Generate the text of a message from its parameters and the current context.
132 virtual string GenText(const string& m, int c);
134 // Returns true if OK to transmit on this frequency
135 inline bool GetFreqClear() { return freqClear; }
136 // Indicate that the frequency is in use
137 inline void SetFreqInUse() { freqClear = false; receiving = true; }
138 // Transmission to the ATC is finished and a response is required
139 void SetResponseReqd(string rid);
140 // Transmission finished - let ATC decide if a response is reqd and clear freq if necessary
141 void NotifyTransmissionFinished(string rid);
142 // Transmission finished and no response required
143 inline void ReleaseFreq() { freqClear = true; receiving = false; } // TODO - check that the plane releasing the freq is the right one etc.
144 // The above 3 funcs under development!!
145 // The idea is that AI traffic or the user ATC dialog box calls FreqInUse() when they begin transmitting,
146 // and that the tower control sets freqClear back to true following a reply.
147 // AI traffic should check FreqClear() is true prior to transmitting.
148 // The user will just have to wait for a gap in dialog as in real life.
150 // Return the type of ATC station that the class represents
151 inline atc_type GetType() { return _type; }
153 // Set the core ATC data
154 void SetData(ATCData* d);
156 inline double get_lon() const { return lon; }
157 inline void set_lon(const double ln) {lon = ln;}
158 inline double get_lat() const { return lat; }
159 inline void set_lat(const double lt) {lat = lt;}
160 inline double get_elev() const { return elev; }
161 inline void set_elev(const double ev) {elev = ev;}
162 inline double get_x() const { return x; }
163 inline void set_x(const double ecs) {x = ecs;}
164 inline double get_y() const { return y; }
165 inline void set_y(const double why) {y = why;}
166 inline double get_z() const { return z; }
167 inline void set_z(const double zed) {z = zed;}
168 inline int get_freq() const { return freq; }
169 inline void set_freq(const int fq) {freq = fq;}
170 inline int get_range() const { return range; }
171 inline void set_range(const int rg) {range = rg;}
172 inline string get_ident() { return ident; }
173 inline void set_ident(const string id) { ident = id; }
174 inline string get_name() { return name; }
175 inline void set_name(const string nm) { name = nm; }
179 // Render a transmission
180 // Outputs the transmission either on screen or as audio depending on user preference
181 // The refname is a string to identify this sample to the sound manager
182 // The repeating flag indicates whether the message should be repeated continuously or played once.
183 void Render(string msg, string refname = "", bool repeating = false);
185 // Cease rendering all transmission from this station.
186 // Requires the sound manager refname if audio, else "".
187 void NoRender(string refname);
189 // Transmit a message when channel becomes free of other dialog
190 void Transmit(int callback_code = 0);
192 // Transmit a message if channel becomes free within timeout (seconds). timeout of zero implies no limit
193 void ConditionalTransmit(double timeout, int callback_code = 0);
195 // Transmit regardless of other dialog on the channel eg emergency
196 void ImmediateTransmit(int callback_code = 0);
198 virtual void ProcessCallback(int code);
200 double lon, lat, elev;
204 string ident; // Code of the airport its at.
205 string name; // Name transmitted in the broadcast.
208 // Rendering related stuff
209 bool _voice; // Flag - true if we are using voice
210 bool _playing; // Indicates a message in progress
211 bool _voiceOK; // Flag - true if at least one voice has loaded OK
214 string pending_transmission; // derived classes set this string before calling Transmit(...)
215 bool freqClear; // Flag to indicate if the frequency is clear of ongoing dialog
216 bool receiving; // Flag to indicate we are receiving a transmission
217 bool responseReqd; // Flag to indicate we should be responding to a request/report
218 bool runResponseCounter; // Flag to indicate the response counter should be run
219 double responseTime; // Time to take from end of request transmission to beginning of response
220 // The idea is that this will be slightly random.
221 double responseCounter; // counter to implement the above
222 string responseID; // ID of the plane to respond to
223 bool respond; // Flag to indicate now is the time to respond - ie set following the count down of the response timer.
224 // Derived classes only need monitor this flag, and use the response ID, as long as they call FGATC::Update(...)
225 bool _runReleaseCounter; // A timer for releasing the frequency after giving the message enough time to display
227 double _releaseCounter;
229 bool _display; // Flag to indicate whether we should be outputting to the ATC display.
230 bool _displaying; // Flag to indicate whether we are outputting to the ATC display.
233 // Transmission timing stuff.
236 int _callback_code; // A callback code to be notified and processed by the derived classes
237 // A value of zero indicates no callback required
238 bool _transmit; // we are to transmit
239 bool _transmitting; // we are transmitting
245 operator >> ( istream& fin, ATCData& a )
268 return fin >> skipeol;
270 SG_LOG(SG_GENERAL, SG_ALERT, "Warning - unknown type \'" << tp << "\' found whilst reading ATC frequency data!\n");
272 return fin >> skipeol;
275 fin >> a.lat >> a.lon >> a.elev >> f >> a.range
280 if(ch != '"') a.name += ch;
283 fin.unsetf(ios::skipws);
285 if((ch == '"') || (ch == 0x0A)) {
287 } // we shouldn't need the 0x0A but it makes a nice safely in case someone leaves off the "
290 fin.setf(ios::skipws);
291 //cout << "Comm name = " << a.name << '\n';
293 a.freq = (int)(f*100.0 + 0.5);
295 // cout << a.ident << endl;
297 // generate cartesian coordinates
298 Point3D geod( a.lon * SGD_DEGREES_TO_RADIANS, a.lat * SGD_DEGREES_TO_RADIANS, a.elev );
299 Point3D cart = sgGeodToCart( geod );
304 return fin >> skipeol;
308 #endif // _FG_ATC_HXX