1 //*************************************************************************
2 // cockpit.cxx -- routines to draw a cockpit (initial draft)
4 // Written by Michele America, started September 1997.
6 // Copyright (C) 1997 Michele F. America - nomimarketing@mail.telepac.pt
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.
23 // (Log is kept at end of this file)
24 //*************************************************************************/
42 #include <Aircraft/aircraft.hxx>
43 #include <Debug/logstream.hxx>
44 #include <Include/fg_constants.h>
45 #include <Include/general.hxx>
46 #include <Main/options.hxx>
47 #include <Main/views.hxx>
48 #include <Math/fg_random.h>
49 #include <Math/mat3.h>
50 #include <Math/polar3d.hxx>
51 #include <Scenery/scenery.hxx>
52 #include <Time/fg_timer.hxx>
54 #include "cockpit.hxx"
58 // This is a structure that contains all data related to
59 // cockpit/panel/hud system
61 static pCockpit ac_cockpit;
63 // The following routines obtain information concerntin the aircraft's
64 // current state and return it to calling instrument display routines.
65 // They should eventually be member functions of the aircraft.
68 double get_latitude( void )
70 return((double)((int)( current_aircraft.fdm_state->get_Latitude()
74 double get_lat_min( void )
78 a = current_aircraft.fdm_state->get_Latitude() * RAD_TO_DEG;
82 d = (double) ( (int) a);
83 return( (a - d) * 60.0);
86 double get_longitude( void )
88 return( (double)((int) (current_aircraft.fdm_state->get_Longitude()
92 double get_long_min( void )
96 a = current_aircraft.fdm_state->get_Longitude() * RAD_TO_DEG;
100 d = (double) ( (int) a);
101 return( (a - d) * 60.0);
104 double get_throttleval( void )
106 return controls.get_throttle( 0 ); // Hack limiting to one engine
109 double get_aileronval( void )
111 return controls.get_aileron();
114 double get_elevatorval( void )
116 return controls.get_elevator();
119 double get_elev_trimval( void )
121 return controls.get_elevator_trim();
124 double get_rudderval( void )
126 return controls.get_rudder();
129 double get_speed( void )
131 return( current_aircraft.fdm_state->get_V_equiv_kts() );
134 double get_aoa( void )
136 return( current_aircraft.fdm_state->get_Alpha() * RAD_TO_DEG );
139 double get_roll( void )
141 return( current_aircraft.fdm_state->get_Phi() );
144 double get_pitch( void )
146 return( current_aircraft.fdm_state->get_Theta() );
149 double get_heading( void )
151 return( current_aircraft.fdm_state->get_Psi() * RAD_TO_DEG );
154 double get_altitude( void )
156 if ( current_options.get_units() == fgOPTIONS::FG_UNITS_FEET ) {
157 return current_aircraft.fdm_state->get_Altitude();
159 return current_aircraft.fdm_state->get_Altitude() * FEET_TO_METER;
163 double get_agl( void )
165 if ( current_options.get_units() == fgOPTIONS::FG_UNITS_FEET ) {
166 return current_aircraft.fdm_state->get_Altitude()
167 - scenery.cur_elev * METER_TO_FEET;
169 return current_aircraft.fdm_state->get_Altitude() * FEET_TO_METER
174 double get_sideslip( void )
176 return( current_aircraft.fdm_state->get_Beta() );
179 double get_frame_rate( void )
181 return (double) general.get_frame_rate();
184 double get_fov( void )
186 return (current_options.get_fov());
189 double get_vfc_ratio( void )
191 return current_view.get_vfc_ratio();
194 double get_vfc_tris_drawn ( void )
196 return current_view.get_tris_rendered();
199 double get_climb_rate( void )
201 if ( current_options.get_units() == fgOPTIONS::FG_UNITS_FEET ) {
202 return current_aircraft.fdm_state->get_Climb_Rate() * 60.0;
204 return current_aircraft.fdm_state->get_Climb_Rate()
205 * FEET_TO_METER * 60.0;
210 bool fgCockpitInit( fgAIRCRAFT *cur_aircraft )
212 FG_LOG( FG_COCKPIT, FG_INFO, "Initializing cockpit subsystem" );
214 // cockpit->code = 1; /* It will be aircraft dependent */
215 // cockpit->status = 0;
217 // If aircraft has HUD specified we will get the specs from its def
218 // file. For now we will depend upon hard coding in hud?
220 // We must insure that the existing instrument link is purged.
221 // This is done by deleting the links in the list.
223 // HI_Head is now a null pointer so we can generate a new list from the
226 fgHUDInit( cur_aircraft );
227 ac_cockpit = new fg_Cockpit();
229 if ( current_options.get_panel_status() ) {
233 FG_LOG( FG_COCKPIT, FG_INFO,
234 " Code " << ac_cockpit->code() << " Status "
235 << ac_cockpit->status() );
241 void fgCockpitUpdate( void ) {
242 FG_LOG( FG_COCKPIT, FG_DEBUG,
243 "Cockpit: code " << ac_cockpit->code() << " status "
244 << ac_cockpit->status() );
246 if ( current_options.get_hud_status() ) {
247 // This will check the global hud linked list pointer.
248 // If these is anything to draw it will.
252 if ( current_options.get_panel_status() &&
253 (fabs( current_view.get_view_offset() ) < 0.2) )
256 current_view.get_winWidth(),
257 current_view.get_winHeight() );
258 FGPanel::OurPanel->Update();
264 // Revision 1.31 1999/03/08 21:56:08 curt
265 // Added panel changes sent in by Friedemann.
267 // Revision 1.30 1999/02/05 21:28:57 curt
268 // Modifications to incorporate Jon S. Berndts flight model code.
270 // Revision 1.29 1999/01/08 19:27:34 curt
271 // Fixed AOA reading on HUD.
272 // Continued work on time jitter compensation.
274 // Revision 1.28 1999/01/07 20:24:17 curt
275 // Update fgGENERAL to FGGeneral.
277 // Revision 1.27 1998/12/18 23:35:09 curt
278 // Converted to a simpler frame rate counting method.
280 // Revision 1.26 1998/12/09 18:50:19 curt
281 // Converted "class fgVIEW" to "class FGView" and updated to make data
282 // members private and make required accessor functions.
284 // Revision 1.25 1998/12/05 15:54:07 curt
285 // Renamed class fgFLIGHT to class FGState as per request by JSB.
287 // Revision 1.24 1998/12/03 01:16:00 curt
288 // Converted fgFLIGHT to a class.
290 // Revision 1.23 1998/11/09 23:38:50 curt
291 // Panel updates from Friedemann.
293 // Revision 1.22 1998/11/06 21:17:45 curt
294 // Converted to new logstream debugging facility. This allows release
295 // builds with no messages at all (and no performance impact) by using
296 // the -DFG_NDEBUG flag.
298 // Revision 1.21 1998/11/02 23:04:02 curt
299 // HUD units now display in feet by default with meters being a command line
302 // Revision 1.20 1998/10/25 14:08:40 curt
303 // Turned "struct fgCONTROLS" into a class, with inlined accessor functions.
305 // Revision 1.19 1998/10/17 01:33:56 curt
308 // Revision 1.18 1998/10/16 23:27:23 curt
311 // Revision 1.17 1998/09/29 14:56:30 curt
312 // c++-ified comments.
314 // Revision 1.16 1998/09/29 02:01:06 curt
315 // Added a "rate of climb" indicator.
317 // Revision 1.15 1998/08/28 18:14:39 curt
318 // Added new cockpit code from Friedemann Reinhard
319 // <mpt218@faupt212.physik.uni-erlangen.de>
321 // Revision 1.14 1998/08/24 20:05:15 curt
322 // Added a second minimalistic HUD.
323 // Added code to display the number of triangles rendered.
325 // Revision 1.13 1998/08/22 01:19:27 curt
326 // Omit panel code because it's texture loading overruns array bounds.
328 // Revision 1.12 1998/07/13 21:28:00 curt
329 // Converted the aoa scale to a radio altimeter.
331 // Revision 1.11 1998/07/13 21:00:45 curt
332 // Integrated Charlies latest HUD updates.
333 // Wrote access functions for current fgOPTIONS.
335 // Revision 1.10 1998/07/08 14:41:08 curt
336 // Renamed polar3d.h to polar3d.hxx
338 // Revision 1.9 1998/06/27 16:47:53 curt
339 // Incorporated Friedemann Reinhard's <mpt218@faupt212.physik.uni-erlangen.de>
340 // first pass at an isntrument panel.
342 // Revision 1.8 1998/05/17 16:58:12 curt
343 // Added a View Frustum Culling ratio display to the hud.
345 // Revision 1.7 1998/05/16 13:04:13 curt
346 // New updates from Charlie Hotchkiss.
348 // Revision 1.6 1998/05/13 18:27:53 curt
349 // Added an fov to hud display.
351 // Revision 1.5 1998/05/11 18:13:10 curt
352 // Complete C++ rewrite of all cockpit code by Charlie Hotchkiss.
354 // Revision 1.4 1998/05/03 00:46:45 curt
355 // polar.h -> polar3d.h
357 // Revision 1.3 1998/04/30 12:36:02 curt
358 // C++-ifying a couple source files.
360 // Revision 1.2 1998/04/25 22:06:26 curt
361 // Edited cvs log messages in source files ... bad bad bad!
363 // Revision 1.1 1998/04/24 00:45:54 curt
364 // C++-ifing the code a bit.
366 // Revision 1.13 1998/04/18 04:14:01 curt
367 // Moved fg_debug.c to it's own library.
369 // Revision 1.12 1998/04/14 02:23:09 curt
370 // Code reorganizations. Added a Lib/ directory for more general libraries.
372 // Revision 1.11 1998/03/14 00:32:13 curt
373 // Changed a printf() to a fgPrintf().
375 // Revision 1.10 1998/02/07 15:29:33 curt
376 // Incorporated HUD changes and struct/typedef changes from Charlie Hotchkiss
377 // <chotchkiss@namg.us.anritsu.com>
379 // Revision 1.9 1998/02/03 23:20:14 curt
380 // Lots of little tweaks to fix various consistency problems discovered by
381 // Solaris' CC. Fixed a bug in fg_debug.c with how the fgPrintf() wrapper
382 // passed arguments along to the real printf(). Also incorporated HUD changes
383 // by Michele America.
385 // Revision 1.8 1998/01/31 00:43:03 curt
386 // Added MetroWorks patches from Carmen Volpe.
388 // Revision 1.7 1998/01/27 00:47:51 curt
389 // Incorporated Paul Bleisch's <bleisch@chromatic.com> new debug message
390 // system and commandline/config file processing code.
392 // Revision 1.6 1998/01/19 19:27:01 curt
393 // Merged in make system changes from Bob Kuehne <rpk@sgi.com>
394 // This should simplify things tremendously.
396 // Revision 1.5 1998/01/19 18:40:19 curt
397 // Tons of little changes to clean up the code and to remove fatal errors
398 // when building with the c++ compiler.
400 // Revision 1.4 1997/12/30 20:47:34 curt
401 // Integrated new event manager with subsystem initializations.
403 // Revision 1.3 1997/12/15 23:54:33 curt
404 // Add xgl wrappers for debugging.
405 // Generate terrain normals on the fly.
407 // Revision 1.2 1997/12/10 22:37:38 curt
408 // Prepended "fg" on the name of all global structures that didn't have it yet.
409 // i.e. "struct WEATHER {}" became "struct fgWEATHER {}"
411 // Revision 1.1 1997/08/29 18:03:20 curt