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.h>
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.flight;
72 // return( toDM(FG_Latitude * RAD_TO_DEG) );
73 return((double)((int)( FG_Latitude * RAD_TO_DEG)) );
75 double get_lat_min( void )
80 f = current_aircraft.flight;
82 a = FG_Latitude * RAD_TO_DEG;
86 d = (double) ( (int) a);
87 return( (a - d) * 60.0);
91 double get_longitude( void )
94 f = current_aircraft.flight;
96 // return( toDM(FG_Longitude * RAD_TO_DEG) );
97 return((double)((int) (FG_Longitude * RAD_TO_DEG)) );
99 double get_long_min( void )
104 f = current_aircraft.flight;
106 a = FG_Longitude * RAD_TO_DEG;
110 d = (double) ( (int) a);
111 return( (a - d) * 60.0);
114 double get_throttleval( void )
116 return controls.get_throttle( 0 ); // Hack limiting to one engine
119 double get_aileronval( void )
121 return controls.get_aileron();
124 double get_elevatorval( void )
126 return controls.get_elevator();
129 double get_elev_trimval( void )
131 return controls.get_elevator_trim();
134 double get_rudderval( void )
136 return controls.get_rudder();
139 double get_speed( void )
143 f = current_aircraft.flight;
144 return( FG_V_equiv_kts ); // Make an explicit function call.
147 double get_aoa( void )
151 f = current_aircraft.flight;
152 return( FG_Gamma_vert_rad * RAD_TO_DEG );
155 double get_roll( void )
159 f = current_aircraft.flight;
163 double get_pitch( void )
167 f = current_aircraft.flight;
171 double get_heading( void )
175 f = current_aircraft.flight;
176 return( FG_Psi * RAD_TO_DEG );
179 double get_altitude( void )
182 // double rough_elev;
184 f = current_aircraft.flight;
185 // rough_elev = mesh_altitude(FG_Longitude * RAD_TO_ARCSEC,
186 // FG_Latitude * RAD_TO_ARCSEC);
188 if ( current_options.get_units() == fgOPTIONS::FG_UNITS_FEET ) {
191 return FG_Altitude * FEET_TO_METER;
195 double get_agl( void )
199 f = current_aircraft.flight;
201 if ( current_options.get_units() == fgOPTIONS::FG_UNITS_FEET ) {
202 return FG_Altitude - scenery.cur_elev * METER_TO_FEET;
204 return FG_Altitude * FEET_TO_METER - scenery.cur_elev;
208 double get_sideslip( void )
212 f = current_aircraft.flight;
217 double get_frame_rate( void )
223 return pgeneral->frame_rate;
226 double get_fov( void )
228 return (current_options.get_fov());
231 double get_vfc_ratio( void )
235 pview = ¤t_view;
237 return pview->vfc_ratio;
240 double get_vfc_tris_drawn ( void )
242 return current_view.tris_rendered;
245 double get_climb_rate( void )
249 f = current_aircraft.flight;
251 if ( current_options.get_units() == fgOPTIONS::FG_UNITS_FEET ) {
252 return FG_Climb_Rate * 60.0;
254 return FG_Climb_Rate * FEET_TO_METER * 60.0;
259 bool fgCockpitInit( fgAIRCRAFT *cur_aircraft )
261 FG_LOG( FG_COCKPIT, FG_INFO, "Initializing cockpit subsystem" );
263 // cockpit->code = 1; /* It will be aircraft dependent */
264 // cockpit->status = 0;
266 // If aircraft has HUD specified we will get the specs from its def
267 // file. For now we will depend upon hard coding in hud?
269 // We must insure that the existing instrument link is purged.
270 // This is done by deleting the links in the list.
272 // HI_Head is now a null pointer so we can generate a new list from the
275 fgHUDInit( cur_aircraft );
276 ac_cockpit = new fg_Cockpit();
278 if ( current_options.get_panel_status() ) {
282 FG_LOG( FG_COCKPIT, FG_INFO,
283 " Code " << ac_cockpit->code() << " Status "
284 << ac_cockpit->status() );
290 void fgCockpitUpdate( void ) {
293 pview = ¤t_view;
295 FG_LOG( FG_COCKPIT, FG_DEBUG,
296 "Cockpit: code " << ac_cockpit->code() << " status "
297 << ac_cockpit->status() );
299 if ( current_options.get_hud_status() ) {
300 // This will check the global hud linked list pointer.
301 // If these is anything to draw it will.
305 if ( current_options.get_panel_status() &&
306 (fabs(pview->view_offset) < 0.2) ) {
307 xglViewport(0, 0, pview->winWidth, pview->winHeight);
314 // Revision 1.23 1998/11/09 23:38:50 curt
315 // Panel updates from Friedemann.
317 // Revision 1.22 1998/11/06 21:17:45 curt
318 // Converted to new logstream debugging facility. This allows release
319 // builds with no messages at all (and no performance impact) by using
320 // the -DFG_NDEBUG flag.
322 // Revision 1.21 1998/11/02 23:04:02 curt
323 // HUD units now display in feet by default with meters being a command line
326 // Revision 1.20 1998/10/25 14:08:40 curt
327 // Turned "struct fgCONTROLS" into a class, with inlined accessor functions.
329 // Revision 1.19 1998/10/17 01:33:56 curt
332 // Revision 1.18 1998/10/16 23:27:23 curt
335 // Revision 1.17 1998/09/29 14:56:30 curt
336 // c++-ified comments.
338 // Revision 1.16 1998/09/29 02:01:06 curt
339 // Added a "rate of climb" indicator.
341 // Revision 1.15 1998/08/28 18:14:39 curt
342 // Added new cockpit code from Friedemann Reinhard
343 // <mpt218@faupt212.physik.uni-erlangen.de>
345 // Revision 1.14 1998/08/24 20:05:15 curt
346 // Added a second minimalistic HUD.
347 // Added code to display the number of triangles rendered.
349 // Revision 1.13 1998/08/22 01:19:27 curt
350 // Omit panel code because it's texture loading overruns array bounds.
352 // Revision 1.12 1998/07/13 21:28:00 curt
353 // Converted the aoa scale to a radio altimeter.
355 // Revision 1.11 1998/07/13 21:00:45 curt
356 // Integrated Charlies latest HUD updates.
357 // Wrote access functions for current fgOPTIONS.
359 // Revision 1.10 1998/07/08 14:41:08 curt
360 // Renamed polar3d.h to polar3d.hxx
362 // Revision 1.9 1998/06/27 16:47:53 curt
363 // Incorporated Friedemann Reinhard's <mpt218@faupt212.physik.uni-erlangen.de>
364 // first pass at an isntrument panel.
366 // Revision 1.8 1998/05/17 16:58:12 curt
367 // Added a View Frustum Culling ratio display to the hud.
369 // Revision 1.7 1998/05/16 13:04:13 curt
370 // New updates from Charlie Hotchkiss.
372 // Revision 1.6 1998/05/13 18:27:53 curt
373 // Added an fov to hud display.
375 // Revision 1.5 1998/05/11 18:13:10 curt
376 // Complete C++ rewrite of all cockpit code by Charlie Hotchkiss.
378 // Revision 1.4 1998/05/03 00:46:45 curt
379 // polar.h -> polar3d.h
381 // Revision 1.3 1998/04/30 12:36:02 curt
382 // C++-ifying a couple source files.
384 // Revision 1.2 1998/04/25 22:06:26 curt
385 // Edited cvs log messages in source files ... bad bad bad!
387 // Revision 1.1 1998/04/24 00:45:54 curt
388 // C++-ifing the code a bit.
390 // Revision 1.13 1998/04/18 04:14:01 curt
391 // Moved fg_debug.c to it's own library.
393 // Revision 1.12 1998/04/14 02:23:09 curt
394 // Code reorganizations. Added a Lib/ directory for more general libraries.
396 // Revision 1.11 1998/03/14 00:32:13 curt
397 // Changed a printf() to a fgPrintf().
399 // Revision 1.10 1998/02/07 15:29:33 curt
400 // Incorporated HUD changes and struct/typedef changes from Charlie Hotchkiss
401 // <chotchkiss@namg.us.anritsu.com>
403 // Revision 1.9 1998/02/03 23:20:14 curt
404 // Lots of little tweaks to fix various consistency problems discovered by
405 // Solaris' CC. Fixed a bug in fg_debug.c with how the fgPrintf() wrapper
406 // passed arguments along to the real printf(). Also incorporated HUD changes
407 // by Michele America.
409 // Revision 1.8 1998/01/31 00:43:03 curt
410 // Added MetroWorks patches from Carmen Volpe.
412 // Revision 1.7 1998/01/27 00:47:51 curt
413 // Incorporated Paul Bleisch's <bleisch@chromatic.com> new debug message
414 // system and commandline/config file processing code.
416 // Revision 1.6 1998/01/19 19:27:01 curt
417 // Merged in make system changes from Bob Kuehne <rpk@sgi.com>
418 // This should simplify things tremendously.
420 // Revision 1.5 1998/01/19 18:40:19 curt
421 // Tons of little changes to clean up the code and to remove fatal errors
422 // when building with the c++ compiler.
424 // Revision 1.4 1997/12/30 20:47:34 curt
425 // Integrated new event manager with subsystem initializations.
427 // Revision 1.3 1997/12/15 23:54:33 curt
428 // Add xgl wrappers for debugging.
429 // Generate terrain normals on the fly.
431 // Revision 1.2 1997/12/10 22:37:38 curt
432 // Prepended "fg" on the name of all global structures that didn't have it yet.
433 // i.e. "struct WEATHER {}" became "struct fgWEATHER {}"
435 // Revision 1.1 1997/08/29 18:03:20 curt