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"
57 // This is a structure that contains all data related to
58 // cockpit/panel/hud system
60 static pCockpit ac_cockpit;
62 // The following routines obtain information concerntin the aircraft's
63 // current state and return it to calling instrument display routines.
64 // They should eventually be member functions of the aircraft.
67 double get_latitude( void )
69 return((double)((int)( current_aircraft.fdm_state->get_Latitude()
73 double get_lat_min( void )
77 a = current_aircraft.fdm_state->get_Latitude() * RAD_TO_DEG;
81 d = (double) ( (int) a);
82 return( (a - d) * 60.0);
85 double get_longitude( void )
87 return( (double)((int) (current_aircraft.fdm_state->get_Longitude()
91 double get_long_min( void )
95 a = current_aircraft.fdm_state->get_Longitude() * RAD_TO_DEG;
99 d = (double) ( (int) a);
100 return( (a - d) * 60.0);
103 double get_throttleval( void )
105 return controls.get_throttle( 0 ); // Hack limiting to one engine
108 double get_aileronval( void )
110 return controls.get_aileron();
113 double get_elevatorval( void )
115 return controls.get_elevator();
118 double get_elev_trimval( void )
120 return controls.get_elevator_trim();
123 double get_rudderval( void )
125 return controls.get_rudder();
128 double get_speed( void )
130 return( current_aircraft.fdm_state->get_V_equiv_kts() );
133 double get_aoa( void )
135 return( current_aircraft.fdm_state->get_Alpha() * RAD_TO_DEG );
138 double get_roll( void )
140 return( current_aircraft.fdm_state->get_Phi() );
143 double get_pitch( void )
145 return( current_aircraft.fdm_state->get_Theta() );
148 double get_heading( void )
150 return( current_aircraft.fdm_state->get_Psi() * RAD_TO_DEG );
153 double get_altitude( void )
155 if ( current_options.get_units() == fgOPTIONS::FG_UNITS_FEET ) {
156 return current_aircraft.fdm_state->get_Altitude();
158 return current_aircraft.fdm_state->get_Altitude() * FEET_TO_METER;
162 double get_agl( void )
164 if ( current_options.get_units() == fgOPTIONS::FG_UNITS_FEET ) {
165 return current_aircraft.fdm_state->get_Altitude()
166 - scenery.cur_elev * METER_TO_FEET;
168 return current_aircraft.fdm_state->get_Altitude() * FEET_TO_METER
173 double get_sideslip( void )
175 return( current_aircraft.fdm_state->get_Beta() );
178 double get_frame_rate( void )
180 return (double) general.get_frame_rate();
183 double get_fov( void )
185 return (current_options.get_fov());
188 double get_vfc_ratio( void )
190 return current_view.get_vfc_ratio();
193 double get_vfc_tris_drawn ( void )
195 return current_view.get_tris_rendered();
198 double get_climb_rate( void )
200 if ( current_options.get_units() == fgOPTIONS::FG_UNITS_FEET ) {
201 return current_aircraft.fdm_state->get_Climb_Rate() * 60.0;
203 return current_aircraft.fdm_state->get_Climb_Rate()
204 * FEET_TO_METER * 60.0;
209 bool fgCockpitInit( fgAIRCRAFT *cur_aircraft )
211 FG_LOG( FG_COCKPIT, FG_INFO, "Initializing cockpit subsystem" );
213 // cockpit->code = 1; /* It will be aircraft dependent */
214 // cockpit->status = 0;
216 // If aircraft has HUD specified we will get the specs from its def
217 // file. For now we will depend upon hard coding in hud?
219 // We must insure that the existing instrument link is purged.
220 // This is done by deleting the links in the list.
222 // HI_Head is now a null pointer so we can generate a new list from the
225 fgHUDInit( cur_aircraft );
226 ac_cockpit = new fg_Cockpit();
228 if ( current_options.get_panel_status() ) {
232 FG_LOG( FG_COCKPIT, FG_INFO,
233 " Code " << ac_cockpit->code() << " Status "
234 << ac_cockpit->status() );
240 void fgCockpitUpdate( void ) {
241 FG_LOG( FG_COCKPIT, FG_DEBUG,
242 "Cockpit: code " << ac_cockpit->code() << " status "
243 << ac_cockpit->status() );
245 if ( current_options.get_hud_status() ) {
246 // This will check the global hud linked list pointer.
247 // If these is anything to draw it will.
251 if ( current_options.get_panel_status() &&
252 (fabs( current_view.get_view_offset() ) < 0.2) )
255 current_view.get_winWidth(),
256 current_view.get_winHeight() );
263 // Revision 1.30 1999/02/05 21:28:57 curt
264 // Modifications to incorporate Jon S. Berndts flight model code.
266 // Revision 1.29 1999/01/08 19:27:34 curt
267 // Fixed AOA reading on HUD.
268 // Continued work on time jitter compensation.
270 // Revision 1.28 1999/01/07 20:24:17 curt
271 // Update fgGENERAL to FGGeneral.
273 // Revision 1.27 1998/12/18 23:35:09 curt
274 // Converted to a simpler frame rate counting method.
276 // Revision 1.26 1998/12/09 18:50:19 curt
277 // Converted "class fgVIEW" to "class FGView" and updated to make data
278 // members private and make required accessor functions.
280 // Revision 1.25 1998/12/05 15:54:07 curt
281 // Renamed class fgFLIGHT to class FGState as per request by JSB.
283 // Revision 1.24 1998/12/03 01:16:00 curt
284 // Converted fgFLIGHT to a class.
286 // Revision 1.23 1998/11/09 23:38:50 curt
287 // Panel updates from Friedemann.
289 // Revision 1.22 1998/11/06 21:17:45 curt
290 // Converted to new logstream debugging facility. This allows release
291 // builds with no messages at all (and no performance impact) by using
292 // the -DFG_NDEBUG flag.
294 // Revision 1.21 1998/11/02 23:04:02 curt
295 // HUD units now display in feet by default with meters being a command line
298 // Revision 1.20 1998/10/25 14:08:40 curt
299 // Turned "struct fgCONTROLS" into a class, with inlined accessor functions.
301 // Revision 1.19 1998/10/17 01:33:56 curt
304 // Revision 1.18 1998/10/16 23:27:23 curt
307 // Revision 1.17 1998/09/29 14:56:30 curt
308 // c++-ified comments.
310 // Revision 1.16 1998/09/29 02:01:06 curt
311 // Added a "rate of climb" indicator.
313 // Revision 1.15 1998/08/28 18:14:39 curt
314 // Added new cockpit code from Friedemann Reinhard
315 // <mpt218@faupt212.physik.uni-erlangen.de>
317 // Revision 1.14 1998/08/24 20:05:15 curt
318 // Added a second minimalistic HUD.
319 // Added code to display the number of triangles rendered.
321 // Revision 1.13 1998/08/22 01:19:27 curt
322 // Omit panel code because it's texture loading overruns array bounds.
324 // Revision 1.12 1998/07/13 21:28:00 curt
325 // Converted the aoa scale to a radio altimeter.
327 // Revision 1.11 1998/07/13 21:00:45 curt
328 // Integrated Charlies latest HUD updates.
329 // Wrote access functions for current fgOPTIONS.
331 // Revision 1.10 1998/07/08 14:41:08 curt
332 // Renamed polar3d.h to polar3d.hxx
334 // Revision 1.9 1998/06/27 16:47:53 curt
335 // Incorporated Friedemann Reinhard's <mpt218@faupt212.physik.uni-erlangen.de>
336 // first pass at an isntrument panel.
338 // Revision 1.8 1998/05/17 16:58:12 curt
339 // Added a View Frustum Culling ratio display to the hud.
341 // Revision 1.7 1998/05/16 13:04:13 curt
342 // New updates from Charlie Hotchkiss.
344 // Revision 1.6 1998/05/13 18:27:53 curt
345 // Added an fov to hud display.
347 // Revision 1.5 1998/05/11 18:13:10 curt
348 // Complete C++ rewrite of all cockpit code by Charlie Hotchkiss.
350 // Revision 1.4 1998/05/03 00:46:45 curt
351 // polar.h -> polar3d.h
353 // Revision 1.3 1998/04/30 12:36:02 curt
354 // C++-ifying a couple source files.
356 // Revision 1.2 1998/04/25 22:06:26 curt
357 // Edited cvs log messages in source files ... bad bad bad!
359 // Revision 1.1 1998/04/24 00:45:54 curt
360 // C++-ifing the code a bit.
362 // Revision 1.13 1998/04/18 04:14:01 curt
363 // Moved fg_debug.c to it's own library.
365 // Revision 1.12 1998/04/14 02:23:09 curt
366 // Code reorganizations. Added a Lib/ directory for more general libraries.
368 // Revision 1.11 1998/03/14 00:32:13 curt
369 // Changed a printf() to a fgPrintf().
371 // Revision 1.10 1998/02/07 15:29:33 curt
372 // Incorporated HUD changes and struct/typedef changes from Charlie Hotchkiss
373 // <chotchkiss@namg.us.anritsu.com>
375 // Revision 1.9 1998/02/03 23:20:14 curt
376 // Lots of little tweaks to fix various consistency problems discovered by
377 // Solaris' CC. Fixed a bug in fg_debug.c with how the fgPrintf() wrapper
378 // passed arguments along to the real printf(). Also incorporated HUD changes
379 // by Michele America.
381 // Revision 1.8 1998/01/31 00:43:03 curt
382 // Added MetroWorks patches from Carmen Volpe.
384 // Revision 1.7 1998/01/27 00:47:51 curt
385 // Incorporated Paul Bleisch's <bleisch@chromatic.com> new debug message
386 // system and commandline/config file processing code.
388 // Revision 1.6 1998/01/19 19:27:01 curt
389 // Merged in make system changes from Bob Kuehne <rpk@sgi.com>
390 // This should simplify things tremendously.
392 // Revision 1.5 1998/01/19 18:40:19 curt
393 // Tons of little changes to clean up the code and to remove fatal errors
394 // when building with the c++ compiler.
396 // Revision 1.4 1997/12/30 20:47:34 curt
397 // Integrated new event manager with subsystem initializations.
399 // Revision 1.3 1997/12/15 23:54:33 curt
400 // Add xgl wrappers for debugging.
401 // Generate terrain normals on the fly.
403 // Revision 1.2 1997/12/10 22:37:38 curt
404 // Prepended "fg" on the name of all global structures that didn't have it yet.
405 // i.e. "struct WEATHER {}" became "struct fgWEATHER {}"
407 // Revision 1.1 1997/08/29 18:03:20 curt