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 )
70 f = current_aircraft.fdm_state;
72 // return( toDM(FG_Latitude * RAD_TO_DEG) );
73 return((double)((int)( f->get_Latitude() * RAD_TO_DEG)) );
76 double get_lat_min( void )
81 f = current_aircraft.fdm_state;
83 a = f->get_Latitude() * RAD_TO_DEG;
87 d = (double) ( (int) a);
88 return( (a - d) * 60.0);
92 double get_longitude( void )
95 f = current_aircraft.fdm_state;
97 // return( toDM(FG_Longitude * RAD_TO_DEG) );
98 return((double)((int) (f->get_Longitude() * RAD_TO_DEG)) );
100 double get_long_min( void )
105 f = current_aircraft.fdm_state;
107 a = f->get_Longitude() * RAD_TO_DEG;
111 d = (double) ( (int) a);
112 return( (a - d) * 60.0);
115 double get_throttleval( void )
117 return controls.get_throttle( 0 ); // Hack limiting to one engine
120 double get_aileronval( void )
122 return controls.get_aileron();
125 double get_elevatorval( void )
127 return controls.get_elevator();
130 double get_elev_trimval( void )
132 return controls.get_elevator_trim();
135 double get_rudderval( void )
137 return controls.get_rudder();
140 double get_speed( void )
144 f = current_aircraft.fdm_state;
145 return( f->get_V_equiv_kts() ); // Make an explicit function call.
148 double get_aoa( void )
152 f = current_aircraft.fdm_state;
153 return( f->get_Alpha() * RAD_TO_DEG );
156 double get_roll( void )
160 f = current_aircraft.fdm_state;
161 return( f->get_Phi() );
164 double get_pitch( void )
168 f = current_aircraft.fdm_state;
169 return( f->get_Theta() );
172 double get_heading( void )
176 f = current_aircraft.fdm_state;
177 return( f->get_Psi() * RAD_TO_DEG );
180 double get_altitude( void )
183 // double rough_elev;
185 f = current_aircraft.fdm_state;
186 // rough_elev = mesh_altitude(f->get_Longitude() * RAD_TO_ARCSEC,
187 // f->get_Latitude() * RAD_TO_ARCSEC);
189 if ( current_options.get_units() == fgOPTIONS::FG_UNITS_FEET ) {
190 return f->get_Altitude();
192 return f->get_Altitude() * FEET_TO_METER;
196 double get_agl( void )
200 f = current_aircraft.fdm_state;
202 if ( current_options.get_units() == fgOPTIONS::FG_UNITS_FEET ) {
203 return f->get_Altitude() - scenery.cur_elev * METER_TO_FEET;
205 return f->get_Altitude() * FEET_TO_METER - scenery.cur_elev;
209 double get_sideslip( void )
213 f = current_aircraft.fdm_state;
215 return( f->get_Beta() );
218 double get_frame_rate( void )
220 return (double) general.get_frame_rate();
223 double get_fov( void )
225 return (current_options.get_fov());
228 double get_vfc_ratio( void )
230 return current_view.get_vfc_ratio();
233 double get_vfc_tris_drawn ( void )
235 return current_view.get_tris_rendered();
238 double get_climb_rate( void )
242 f = current_aircraft.fdm_state;
244 if ( current_options.get_units() == fgOPTIONS::FG_UNITS_FEET ) {
245 return f->get_Climb_Rate() * 60.0;
247 return f->get_Climb_Rate() * FEET_TO_METER * 60.0;
252 bool fgCockpitInit( fgAIRCRAFT *cur_aircraft )
254 FG_LOG( FG_COCKPIT, FG_INFO, "Initializing cockpit subsystem" );
256 // cockpit->code = 1; /* It will be aircraft dependent */
257 // cockpit->status = 0;
259 // If aircraft has HUD specified we will get the specs from its def
260 // file. For now we will depend upon hard coding in hud?
262 // We must insure that the existing instrument link is purged.
263 // This is done by deleting the links in the list.
265 // HI_Head is now a null pointer so we can generate a new list from the
268 fgHUDInit( cur_aircraft );
269 ac_cockpit = new fg_Cockpit();
271 if ( current_options.get_panel_status() ) {
275 FG_LOG( FG_COCKPIT, FG_INFO,
276 " Code " << ac_cockpit->code() << " Status "
277 << ac_cockpit->status() );
283 void fgCockpitUpdate( void ) {
284 FG_LOG( FG_COCKPIT, FG_DEBUG,
285 "Cockpit: code " << ac_cockpit->code() << " status "
286 << ac_cockpit->status() );
288 if ( current_options.get_hud_status() ) {
289 // This will check the global hud linked list pointer.
290 // If these is anything to draw it will.
294 if ( current_options.get_panel_status() &&
295 (fabs( current_view.get_view_offset() ) < 0.2) )
298 current_view.get_winWidth(),
299 current_view.get_winHeight() );
306 // Revision 1.29 1999/01/08 19:27:34 curt
307 // Fixed AOA reading on HUD.
308 // Continued work on time jitter compensation.
310 // Revision 1.28 1999/01/07 20:24:17 curt
311 // Update fgGENERAL to FGGeneral.
313 // Revision 1.27 1998/12/18 23:35:09 curt
314 // Converted to a simpler frame rate counting method.
316 // Revision 1.26 1998/12/09 18:50:19 curt
317 // Converted "class fgVIEW" to "class FGView" and updated to make data
318 // members private and make required accessor functions.
320 // Revision 1.25 1998/12/05 15:54:07 curt
321 // Renamed class fgFLIGHT to class FGState as per request by JSB.
323 // Revision 1.24 1998/12/03 01:16:00 curt
324 // Converted fgFLIGHT to a class.
326 // Revision 1.23 1998/11/09 23:38:50 curt
327 // Panel updates from Friedemann.
329 // Revision 1.22 1998/11/06 21:17:45 curt
330 // Converted to new logstream debugging facility. This allows release
331 // builds with no messages at all (and no performance impact) by using
332 // the -DFG_NDEBUG flag.
334 // Revision 1.21 1998/11/02 23:04:02 curt
335 // HUD units now display in feet by default with meters being a command line
338 // Revision 1.20 1998/10/25 14:08:40 curt
339 // Turned "struct fgCONTROLS" into a class, with inlined accessor functions.
341 // Revision 1.19 1998/10/17 01:33:56 curt
344 // Revision 1.18 1998/10/16 23:27:23 curt
347 // Revision 1.17 1998/09/29 14:56:30 curt
348 // c++-ified comments.
350 // Revision 1.16 1998/09/29 02:01:06 curt
351 // Added a "rate of climb" indicator.
353 // Revision 1.15 1998/08/28 18:14:39 curt
354 // Added new cockpit code from Friedemann Reinhard
355 // <mpt218@faupt212.physik.uni-erlangen.de>
357 // Revision 1.14 1998/08/24 20:05:15 curt
358 // Added a second minimalistic HUD.
359 // Added code to display the number of triangles rendered.
361 // Revision 1.13 1998/08/22 01:19:27 curt
362 // Omit panel code because it's texture loading overruns array bounds.
364 // Revision 1.12 1998/07/13 21:28:00 curt
365 // Converted the aoa scale to a radio altimeter.
367 // Revision 1.11 1998/07/13 21:00:45 curt
368 // Integrated Charlies latest HUD updates.
369 // Wrote access functions for current fgOPTIONS.
371 // Revision 1.10 1998/07/08 14:41:08 curt
372 // Renamed polar3d.h to polar3d.hxx
374 // Revision 1.9 1998/06/27 16:47:53 curt
375 // Incorporated Friedemann Reinhard's <mpt218@faupt212.physik.uni-erlangen.de>
376 // first pass at an isntrument panel.
378 // Revision 1.8 1998/05/17 16:58:12 curt
379 // Added a View Frustum Culling ratio display to the hud.
381 // Revision 1.7 1998/05/16 13:04:13 curt
382 // New updates from Charlie Hotchkiss.
384 // Revision 1.6 1998/05/13 18:27:53 curt
385 // Added an fov to hud display.
387 // Revision 1.5 1998/05/11 18:13:10 curt
388 // Complete C++ rewrite of all cockpit code by Charlie Hotchkiss.
390 // Revision 1.4 1998/05/03 00:46:45 curt
391 // polar.h -> polar3d.h
393 // Revision 1.3 1998/04/30 12:36:02 curt
394 // C++-ifying a couple source files.
396 // Revision 1.2 1998/04/25 22:06:26 curt
397 // Edited cvs log messages in source files ... bad bad bad!
399 // Revision 1.1 1998/04/24 00:45:54 curt
400 // C++-ifing the code a bit.
402 // Revision 1.13 1998/04/18 04:14:01 curt
403 // Moved fg_debug.c to it's own library.
405 // Revision 1.12 1998/04/14 02:23:09 curt
406 // Code reorganizations. Added a Lib/ directory for more general libraries.
408 // Revision 1.11 1998/03/14 00:32:13 curt
409 // Changed a printf() to a fgPrintf().
411 // Revision 1.10 1998/02/07 15:29:33 curt
412 // Incorporated HUD changes and struct/typedef changes from Charlie Hotchkiss
413 // <chotchkiss@namg.us.anritsu.com>
415 // Revision 1.9 1998/02/03 23:20:14 curt
416 // Lots of little tweaks to fix various consistency problems discovered by
417 // Solaris' CC. Fixed a bug in fg_debug.c with how the fgPrintf() wrapper
418 // passed arguments along to the real printf(). Also incorporated HUD changes
419 // by Michele America.
421 // Revision 1.8 1998/01/31 00:43:03 curt
422 // Added MetroWorks patches from Carmen Volpe.
424 // Revision 1.7 1998/01/27 00:47:51 curt
425 // Incorporated Paul Bleisch's <bleisch@chromatic.com> new debug message
426 // system and commandline/config file processing code.
428 // Revision 1.6 1998/01/19 19:27:01 curt
429 // Merged in make system changes from Bob Kuehne <rpk@sgi.com>
430 // This should simplify things tremendously.
432 // Revision 1.5 1998/01/19 18:40:19 curt
433 // Tons of little changes to clean up the code and to remove fatal errors
434 // when building with the c++ compiler.
436 // Revision 1.4 1997/12/30 20:47:34 curt
437 // Integrated new event manager with subsystem initializations.
439 // Revision 1.3 1997/12/15 23:54:33 curt
440 // Add xgl wrappers for debugging.
441 // Generate terrain normals on the fly.
443 // Revision 1.2 1997/12/10 22:37:38 curt
444 // Prepended "fg" on the name of all global structures that didn't have it yet.
445 // i.e. "struct WEATHER {}" became "struct fgWEATHER {}"
447 // Revision 1.1 1997/08/29 18:03:20 curt