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.h>
43 #include <Debug/fg_debug.h>
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>
53 #include <Weather/weather.h>
55 #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 )
71 f = current_aircraft.flight;
73 // return( toDM(FG_Latitude * RAD_TO_DEG) );
74 return((double)((int)( FG_Latitude * RAD_TO_DEG)) );
76 double get_lat_min( void )
81 f = current_aircraft.flight;
83 a = FG_Latitude * RAD_TO_DEG;
87 d = (double) ( (int) a);
88 return( (a - d) * 60.0);
92 double get_longitude( void )
95 f = current_aircraft.flight;
97 // return( toDM(FG_Longitude * RAD_TO_DEG) );
98 return((double)((int) (FG_Longitude * RAD_TO_DEG)) );
100 double get_long_min( void )
105 f = current_aircraft.flight;
107 a = FG_Longitude * RAD_TO_DEG;
111 d = (double) ( (int) a);
112 return( (a - d) * 60.0);
115 double get_throttleval( void )
117 fgCONTROLS *pcontrols;
119 pcontrols = current_aircraft.controls;
120 return pcontrols->throttle[0]; // Hack limiting to one engine
123 double get_aileronval( void )
125 fgCONTROLS *pcontrols;
127 pcontrols = current_aircraft.controls;
128 return pcontrols->aileron;
131 double get_elevatorval( void )
133 fgCONTROLS *pcontrols;
135 pcontrols = current_aircraft.controls;
136 return pcontrols->elevator;
139 double get_elev_trimval( void )
141 fgCONTROLS *pcontrols;
143 pcontrols = current_aircraft.controls;
144 return pcontrols->elevator_trim;
147 double get_rudderval( void )
149 fgCONTROLS *pcontrols;
151 pcontrols = current_aircraft.controls;
152 return pcontrols->rudder;
155 double get_speed( void )
159 f = current_aircraft.flight;
160 return( FG_V_equiv_kts ); // Make an explicit function call.
163 double get_aoa( void )
167 f = current_aircraft.flight;
168 return( FG_Gamma_vert_rad * RAD_TO_DEG );
171 double get_roll( void )
175 f = current_aircraft.flight;
179 double get_pitch( void )
183 f = current_aircraft.flight;
187 double get_heading( void )
191 f = current_aircraft.flight;
192 return( FG_Psi * RAD_TO_DEG );
195 double get_altitude( void )
198 // double rough_elev;
200 f = current_aircraft.flight;
201 // rough_elev = mesh_altitude(FG_Longitude * RAD_TO_ARCSEC,
202 // FG_Latitude * RAD_TO_ARCSEC);
204 return( FG_Altitude * FEET_TO_METER /* -rough_elev */ );
207 double get_agl( void )
212 f = current_aircraft.flight;
213 agl = FG_Altitude * FEET_TO_METER - scenery.cur_elev;
218 double get_sideslip( void )
222 f = current_aircraft.flight;
227 double get_frame_rate( void )
233 return pgeneral->frame_rate;
236 double get_fov( void )
238 return (current_options.get_fov());
241 double get_vfc_ratio( void )
245 pview = ¤t_view;
247 return pview->vfc_ratio;
250 double get_vfc_tris_drawn ( void )
252 return current_view.tris_rendered;
255 double get_climb_rate( void )
259 f = current_aircraft.flight;
261 return( FG_Climb_Rate * FEET_TO_METER * 60.0 );
265 bool fgCockpitInit( fgAIRCRAFT *cur_aircraft )
267 fgPrintf( FG_COCKPIT, FG_INFO, "Initializing cockpit subsystem\n");
269 // cockpit->code = 1; /* It will be aircraft dependent */
270 // cockpit->status = 0;
272 // If aircraft has HUD specified we will get the specs from its def
273 // file. For now we will depend upon hard coding in hud?
275 // We must insure that the existing instrument link is purged.
276 // This is done by deleting the links in the list.
278 // HI_Head is now a null pointer so we can generate a new list from the
281 fgHUDInit( cur_aircraft );
282 ac_cockpit = new fg_Cockpit();
284 if ( current_options.get_panel_status() ) {
288 fgPrintf( FG_COCKPIT, FG_INFO,
289 " Code %d Status %d\n",
290 ac_cockpit->code(), ac_cockpit->status() );
296 void fgCockpitUpdate( void ) {
299 pview = ¤t_view;
301 fgPrintf( FG_COCKPIT, FG_DEBUG,
302 "Cockpit: code %d status %d\n",
303 ac_cockpit->code(), ac_cockpit->status() );
305 if ( current_options.get_hud_status() ) {
306 // This will check the global hud linked list pointer.
307 // If these is anything to draw it will.
311 if ( current_options.get_panel_status() &&
312 (fabs(pview->view_offset) < 0.2) ) {
319 /* Revision 1.16 1998/09/29 02:01:06 curt
320 /* Added a "rate of climb" indicator.
322 * Revision 1.15 1998/08/28 18:14:39 curt
323 * Added new cockpit code from Friedemann Reinhard
324 * <mpt218@faupt212.physik.uni-erlangen.de>
326 * Revision 1.14 1998/08/24 20:05:15 curt
327 * Added a second minimalistic HUD.
328 * Added code to display the number of triangles rendered.
330 * Revision 1.13 1998/08/22 01:19:27 curt
331 * Omit panel code because it's texture loading overruns array bounds.
333 * Revision 1.12 1998/07/13 21:28:00 curt
334 * Converted the aoa scale to a radio altimeter.
336 * Revision 1.11 1998/07/13 21:00:45 curt
337 * Integrated Charlies latest HUD updates.
338 * Wrote access functions for current fgOPTIONS.
340 * Revision 1.10 1998/07/08 14:41:08 curt
341 * Renamed polar3d.h to polar3d.hxx
343 * Revision 1.9 1998/06/27 16:47:53 curt
344 * Incorporated Friedemann Reinhard's <mpt218@faupt212.physik.uni-erlangen.de>
345 * first pass at an isntrument panel.
347 * Revision 1.8 1998/05/17 16:58:12 curt
348 * Added a View Frustum Culling ratio display to the hud.
350 * Revision 1.7 1998/05/16 13:04:13 curt
351 * New updates from Charlie Hotchkiss.
353 * Revision 1.6 1998/05/13 18:27:53 curt
354 * Added an fov to hud display.
356 * Revision 1.5 1998/05/11 18:13:10 curt
357 * Complete C++ rewrite of all cockpit code by Charlie Hotchkiss.
359 * Revision 1.4 1998/05/03 00:46:45 curt
360 * polar.h -> polar3d.h
362 * Revision 1.3 1998/04/30 12:36:02 curt
363 * C++-ifying a couple source files.
365 * Revision 1.2 1998/04/25 22:06:26 curt
366 * Edited cvs log messages in source files ... bad bad bad!
368 * Revision 1.1 1998/04/24 00:45:54 curt
369 * C++-ifing the code a bit.
371 * Revision 1.13 1998/04/18 04:14:01 curt
372 * Moved fg_debug.c to it's own library.
374 * Revision 1.12 1998/04/14 02:23:09 curt
375 * Code reorganizations. Added a Lib/ directory for more general libraries.
377 * Revision 1.11 1998/03/14 00:32:13 curt
378 * Changed a printf() to a fgPrintf().
380 * Revision 1.10 1998/02/07 15:29:33 curt
381 * Incorporated HUD changes and struct/typedef changes from Charlie Hotchkiss
382 * <chotchkiss@namg.us.anritsu.com>
384 * Revision 1.9 1998/02/03 23:20:14 curt
385 * Lots of little tweaks to fix various consistency problems discovered by
386 * Solaris' CC. Fixed a bug in fg_debug.c with how the fgPrintf() wrapper
387 * passed arguments along to the real printf(). Also incorporated HUD changes
388 * by Michele America.
390 * Revision 1.8 1998/01/31 00:43:03 curt
391 * Added MetroWorks patches from Carmen Volpe.
393 * Revision 1.7 1998/01/27 00:47:51 curt
394 * Incorporated Paul Bleisch's <bleisch@chromatic.com> new debug message
395 * system and commandline/config file processing code.
397 * Revision 1.6 1998/01/19 19:27:01 curt
398 * Merged in make system changes from Bob Kuehne <rpk@sgi.com>
399 * This should simplify things tremendously.
401 * Revision 1.5 1998/01/19 18:40:19 curt
402 * Tons of little changes to clean up the code and to remove fatal errors
403 * when building with the c++ compiler.
405 * Revision 1.4 1997/12/30 20:47:34 curt
406 * Integrated new event manager with subsystem initializations.
408 * Revision 1.3 1997/12/15 23:54:33 curt
409 * Add xgl wrappers for debugging.
410 * Generate terrain normals on the fly.
412 * Revision 1.2 1997/12/10 22:37:38 curt
413 * Prepended "fg" on the name of all global structures that didn't have it yet.
414 * i.e. "struct WEATHER {}" became "struct fgWEATHER {}"
416 * Revision 1.1 1997/08/29 18:03:20 curt