1 /**************************************************************************
2 * cockpit.c -- 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 **************************************************************************/
39 #include <Aircraft/aircraft.h>
40 #include <Debug/fg_debug.h>
41 #include <Include/fg_constants.h>
42 #include <Include/general.h>
43 #include <Main/options.hxx>
44 #include <Main/views.hxx>
45 #include <Math/fg_random.h>
46 #include <Math/mat3.h>
47 #include <Math/polar3d.h>
48 #include <Scenery/scenery.hxx>
49 #include <Time/fg_timer.hxx>
50 #include <Weather/weather.h>
52 #include "cockpit.hxx"
55 // This is a structure that contains all data related to
56 // cockpit/panel/hud system
58 static pCockpit ac_cockpit;
60 // The following routines obtain information concerntin the aircraft's
61 // current state and return it to calling instrument display routines.
62 // They should eventually be member functions of the aircraft.
65 double get_latitude( void )
68 f = current_aircraft.flight;
70 // return( toDM(FG_Latitude * RAD_TO_DEG) );
71 return((double)((int)( FG_Latitude * RAD_TO_DEG)) );
73 double get_lat_min( void )
78 f = current_aircraft.flight;
80 a = FG_Latitude * RAD_TO_DEG;
84 d = (double) ( (int) a);
85 return( (a - d) * 60.0);
89 double get_longitude( void )
92 f = current_aircraft.flight;
94 // return( toDM(FG_Longitude * RAD_TO_DEG) );
95 return((double)((int) (FG_Longitude * RAD_TO_DEG)) );
97 double get_long_min( void )
102 f = current_aircraft.flight;
104 a = FG_Longitude * RAD_TO_DEG;
108 d = (double) ( (int) a);
109 return( (a - d) * 60.0);
112 double get_throttleval( void )
114 fgCONTROLS *pcontrols;
116 pcontrols = current_aircraft.controls;
117 return pcontrols->throttle[0]; // Hack limiting to one engine
120 double get_aileronval( void )
122 fgCONTROLS *pcontrols;
124 pcontrols = current_aircraft.controls;
125 return pcontrols->aileron;
128 double get_elevatorval( void )
130 fgCONTROLS *pcontrols;
132 pcontrols = current_aircraft.controls;
133 return pcontrols->elevator;
136 double get_elev_trimval( void )
138 fgCONTROLS *pcontrols;
140 pcontrols = current_aircraft.controls;
141 return pcontrols->elevator_trim;
144 double get_rudderval( void )
146 fgCONTROLS *pcontrols;
148 pcontrols = current_aircraft.controls;
149 return pcontrols->rudder;
152 double get_speed( void )
156 f = current_aircraft.flight;
157 return( FG_V_equiv_kts ); // Make an explicit function call.
160 double get_aoa( void )
164 f = current_aircraft.flight;
165 return( FG_Gamma_vert_rad * RAD_TO_DEG );
168 double get_roll( void )
172 f = current_aircraft.flight;
176 double get_pitch( void )
180 f = current_aircraft.flight;
184 double get_heading( void )
188 f = current_aircraft.flight;
189 return( FG_Psi * RAD_TO_DEG );
192 double get_altitude( void )
195 // double rough_elev;
197 f = current_aircraft.flight;
198 // rough_elev = mesh_altitude(FG_Longitude * RAD_TO_ARCSEC,
199 // FG_Latitude * RAD_TO_ARCSEC);
201 return( FG_Altitude * FEET_TO_METER /* -rough_elev */ );
204 double get_sideslip( void )
208 f = current_aircraft.flight;
213 double get_frame_rate( void )
219 return g->frame_rate;
222 double get_fov( void )
226 o = ¤t_options;
231 double get_vfc_ratio( void )
240 bool fgCockpitInit( fgAIRCRAFT *cur_aircraft )
242 fgPrintf( FG_COCKPIT, FG_INFO, "Initializing cockpit subsystem\n");
244 // cockpit->code = 1; /* It will be aircraft dependent */
245 // cockpit->status = 0;
247 // If aircraft has HUD specified we will get the specs from its def
248 // file. For now we will depend upon hard coding in hud?
250 // We must insure that the existing instrument link is purged.
251 // This is done by deleting the links in the list.
253 // HI_Head is now a null pointer so we can generate a new list from the
256 fgHUDInit( cur_aircraft );
257 ac_cockpit = new fg_Cockpit();
259 fgPrintf( FG_COCKPIT, FG_INFO,
260 " Code %d Status %d\n",
261 ac_cockpit->code(), ac_cockpit->status() );
266 void fgCockpitUpdate( void )
269 fgPrintf( FG_COCKPIT, FG_DEBUG,
270 "Cockpit: code %d status %d\n",
271 ac_cockpit->code(), ac_cockpit->status() );
272 fgUpdateHUD(); // This will check the global hud linked list pointer.
273 // If these is anything to draw it will.
277 /* Revision 1.8 1998/05/17 16:58:12 curt
278 /* Added a View Frustum Culling ratio display to the hud.
280 * Revision 1.7 1998/05/16 13:04:13 curt
281 * New updates from Charlie Hotchkiss.
283 * Revision 1.6 1998/05/13 18:27:53 curt
284 * Added an fov to hud display.
286 * Revision 1.5 1998/05/11 18:13:10 curt
287 * Complete C++ rewrite of all cockpit code by Charlie Hotchkiss.
289 * Revision 1.4 1998/05/03 00:46:45 curt
290 * polar.h -> polar3d.h
292 * Revision 1.3 1998/04/30 12:36:02 curt
293 * C++-ifying a couple source files.
295 * Revision 1.2 1998/04/25 22:06:26 curt
296 * Edited cvs log messages in source files ... bad bad bad!
298 * Revision 1.1 1998/04/24 00:45:54 curt
299 * C++-ifing the code a bit.
301 * Revision 1.13 1998/04/18 04:14:01 curt
302 * Moved fg_debug.c to it's own library.
304 * Revision 1.12 1998/04/14 02:23:09 curt
305 * Code reorganizations. Added a Lib/ directory for more general libraries.
307 * Revision 1.11 1998/03/14 00:32:13 curt
308 * Changed a printf() to a fgPrintf().
310 * Revision 1.10 1998/02/07 15:29:33 curt
311 * Incorporated HUD changes and struct/typedef changes from Charlie Hotchkiss
312 * <chotchkiss@namg.us.anritsu.com>
314 * Revision 1.9 1998/02/03 23:20:14 curt
315 * Lots of little tweaks to fix various consistency problems discovered by
316 * Solaris' CC. Fixed a bug in fg_debug.c with how the fgPrintf() wrapper
317 * passed arguments along to the real printf(). Also incorporated HUD changes
318 * by Michele America.
320 * Revision 1.8 1998/01/31 00:43:03 curt
321 * Added MetroWorks patches from Carmen Volpe.
323 * Revision 1.7 1998/01/27 00:47:51 curt
324 * Incorporated Paul Bleisch's <bleisch@chromatic.com> new debug message
325 * system and commandline/config file processing code.
327 * Revision 1.6 1998/01/19 19:27:01 curt
328 * Merged in make system changes from Bob Kuehne <rpk@sgi.com>
329 * This should simplify things tremendously.
331 * Revision 1.5 1998/01/19 18:40:19 curt
332 * Tons of little changes to clean up the code and to remove fatal errors
333 * when building with the c++ compiler.
335 * Revision 1.4 1997/12/30 20:47:34 curt
336 * Integrated new event manager with subsystem initializations.
338 * Revision 1.3 1997/12/15 23:54:33 curt
339 * Add xgl wrappers for debugging.
340 * Generate terrain normals on the fly.
342 * Revision 1.2 1997/12/10 22:37:38 curt
343 * Prepended "fg" on the name of all global structures that didn't have it yet.
344 * i.e. "struct WEATHER {}" became "struct fgWEATHER {}"
346 * Revision 1.1 1997/08/29 18:03:20 curt