1 // cockpit.cxx -- routines to draw a cockpit (initial draft)
3 // Written by Michele America, started September 1997.
5 // Copyright (C) 1997 Michele F. America - nomimarketing@mail.telepac.pt
7 // This program is free software; you can redistribute it and/or
8 // modify it under the terms of the GNU General Public License as
9 // published by the Free Software Foundation; either version 2 of the
10 // License, or (at your option) any later version.
12 // This program is distributed in the hope that it will be useful, but
13 // WITHOUT ANY WARRANTY; without even the implied warranty of
14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 // General Public License for more details.
17 // You should have received a copy of the GNU General Public License
18 // along with this program; if not, write to the Free Software
19 // Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
33 #include <simgear/xgl/xgl.h>
39 #include <simgear/constants.h>
40 #include <simgear/debug/logstream.hxx>
41 #include <simgear/math/fg_random.h>
42 #include <simgear/math/polar3d.hxx>
44 #include <Aircraft/aircraft.hxx>
45 #include <Include/general.hxx>
46 #include <Main/globals.hxx>
47 #include <Main/options.hxx>
48 #include <Main/views.hxx>
49 #include <Scenery/scenery.hxx>
50 #include <Time/fg_timer.hxx>
53 #include "cockpit.hxx"
56 // This is a structure that contains all data related to
57 // cockpit/panel/hud system
59 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 float get_latitude( void )
69 lat = current_aircraft.fdm_state->get_Latitude() * RAD_TO_DEG;
76 float get_lat_min( void )
80 a = current_aircraft.fdm_state->get_Latitude() * RAD_TO_DEG;
84 d = (double) ( (int) a);
85 float lat_min = (a - d) * 60.0;
90 float get_longitude( void )
94 lon = current_aircraft.fdm_state->get_Longitude() * RAD_TO_DEG;
102 get_formated_gmt_time( void )
105 const struct tm *p = globals->get_time_params()->getGmt();
106 sprintf( buf, "%d/%d/%4d %d:%02d:%02d",
107 p->tm_mon+1, p->tm_mday, 1900 + p->tm_year,
108 p->tm_hour, p->tm_min, p->tm_sec);
113 float get_long_min( void )
116 a = current_aircraft.fdm_state->get_Longitude() * RAD_TO_DEG;
120 d = (double) ( (int) a);
121 float lon_min = (a - d) * 60.0;
125 float get_throttleval( void )
127 float throttle = controls.get_throttle( 0 );
128 return (throttle); // Hack limiting to one engine
131 float get_aileronval( void )
133 float aileronval = controls.get_aileron();
137 float get_elevatorval( void )
139 float elevator_val = (float)controls.get_elevator();
143 float get_elev_trimval( void )
145 float elevatorval = controls.get_elevator_trim();
146 return (elevatorval);
149 float get_rudderval( void )
151 float rudderval = controls.get_rudder();
155 float get_speed( void )
157 // Make an explicit function call.
158 float speed = current_aircraft.fdm_state->get_V_calibrated_kts()
159 * current_options.get_speed_up();
165 float mach=current_aircraft.fdm_state->get_Mach_number();
169 float get_aoa( void )
171 float aoa = current_aircraft.fdm_state->get_Alpha() * RAD_TO_DEG;
175 float get_roll( void )
177 float roll = current_aircraft.fdm_state->get_Phi();
181 float get_pitch( void )
183 float pitch = current_aircraft.fdm_state->get_Theta();
187 float get_heading( void )
189 float heading = (current_aircraft.fdm_state->get_Psi() * RAD_TO_DEG);
193 float get_altitude( void )
196 // double rough_elev;
198 // current_aircraft.fdm_state
199 // rough_elev = mesh_altitude(f->get_Longitude() * RAD_TO_ARCSEC,
200 // f->get_Latitude() * RAD_TO_ARCSEC);
203 if ( current_options.get_units() == fgOPTIONS::FG_UNITS_FEET ) {
204 altitude = current_aircraft.fdm_state->get_Altitude();
206 altitude = (current_aircraft.fdm_state->get_Altitude() * FEET_TO_METER);
211 float get_agl( void )
215 if ( current_options.get_units() == fgOPTIONS::FG_UNITS_FEET ) {
216 agl = (current_aircraft.fdm_state->get_Altitude()
217 - scenery.cur_elev * METER_TO_FEET);
219 agl = (current_aircraft.fdm_state->get_Altitude() * FEET_TO_METER
225 float get_sideslip( void )
227 float sideslip = current_aircraft.fdm_state->get_Beta();
231 float get_frame_rate( void )
233 float frame_rate = general.get_frame_rate();
237 float get_fov( void )
239 float fov = current_options.get_fov();
243 float get_vfc_ratio( void )
245 // float vfc = current_view.get_vfc_ratio();
250 float get_vfc_tris_drawn ( void )
252 // float rendered = current_view.get_tris_rendered();
253 // return (rendered);
257 float get_vfc_tris_culled ( void )
259 // float culled = current_view.get_tris_culled();
264 float get_climb_rate( void )
267 if ( current_options.get_units() == fgOPTIONS::FG_UNITS_FEET ) {
268 climb_rate = current_aircraft.fdm_state->get_Climb_Rate() * 60.0;
270 climb_rate = current_aircraft.fdm_state->get_Climb_Rate() * FEET_TO_METER * 60.0;
276 float get_view_direction( void )
280 view = FG_2PI - current_view.get_view_offset();
281 view = ( current_aircraft.fdm_state->get_Psi() + view) * RAD_TO_DEG;
293 /****************************************************************************/
294 /* Convert degrees to dd mm'ss.s" (DMS-Format) */
295 /****************************************************************************/
296 char *dmshh_format(double degrees)
307 min_part = 60.0 * (degrees - deg_part);
308 sec_part = 3600.0 * (degrees - deg_part - min_part / 60.0);
310 /* Round off hundredths */
311 if (sec_part + 0.005 >= 60.0)
312 sec_part -= 60.0, min_part += 1;
314 min_part -= 60, deg_part += 1;
316 sprintf(buf,"%02d*%02d %05.2f",deg_part,min_part,sec_part);
322 /****************************************************************************/
323 /* Convert degrees to dd mm'ss.s'' (DMS-Format) */
324 /****************************************************************************/
325 static char *toDMS(float a)
335 d = (float) ((int) a);
337 m = (float) ((int) a);
351 sprintf(dms, "%.0f*%02.0f %04.1f", d, m, s);
356 /****************************************************************************/
357 /* Convert degrees to dd mm.mmm' (DMM-Format) */
358 /****************************************************************************/
359 static char *toDM(float a)
370 d = (float) ( (int) a);
379 sprintf(dm, "%.0f*%06.3f", d, m);
383 // Have to set the LatLon display type
384 //static char *(*fgLatLonFormat)(float) = toDM;
385 static char *(*fgLatLonFormat)(float);
387 char *coord_format_lat(float latitude)
392 // dmshh_format(latitude),
395 fgLatLonFormat(latitude),
396 latitude > 0 ? 'N' : 'S');
400 char *coord_format_lon(float longitude)
405 // dmshh_format(longitude),
408 fgLatLonFormat(longitude),
409 longitude > 0 ? 'E' : 'W');
413 void fgLatLonFormatToggle( puObject *)
415 static int toggle = 0;
418 fgLatLonFormat = toDM;
420 fgLatLonFormat = toDMS;
426 char *coord_format_latlon(double latitude, double longitude)
428 static char buf[1024];
430 sprintf(buf,"%s%c %s%c",
431 dmshh_format(latitude),
432 latitude > 0 ? 'N' : 'S',
433 dmshh_format(longitude),
434 longitude > 0 ? 'E' : 'W');
440 bool fgCockpitInit( fgAIRCRAFT *cur_aircraft )
442 FG_LOG( FG_COCKPIT, FG_INFO, "Initializing cockpit subsystem" );
444 // cockpit->code = 1; /* It will be aircraft dependent */
445 // cockpit->status = 0;
447 // If aircraft has HUD specified we will get the specs from its def
448 // file. For now we will depend upon hard coding in hud?
450 // We must insure that the existing instrument link is purged.
451 // This is done by deleting the links in the list.
453 // HI_Head is now a null pointer so we can generate a new list from the
456 fgHUDInit( cur_aircraft );
457 ac_cockpit = new fg_Cockpit();
459 // Have to set the LatLon display type
460 fgLatLonFormat = toDM;
462 FG_LOG( FG_COCKPIT, FG_INFO,
463 " Code " << ac_cockpit->code() << " Status "
464 << ac_cockpit->status() );
469 void fgCockpitUpdate( void ) {
471 FG_LOG( FG_COCKPIT, FG_DEBUG,
472 "Cockpit: code " << ac_cockpit->code() << " status "
473 << ac_cockpit->status() );
475 int iwidth = current_view.get_winWidth();
476 int iheight = current_view.get_winHeight();
477 float width = iwidth;
478 float height = iheight;
480 if ( current_options.get_hud_status() ) {
481 // This will check the global hud linked list pointer.
482 // If these is anything to draw it will.
485 #define DISPLAY_COUNTER
486 #ifdef DISPLAY_COUNTER
490 float fps = get_frame_rate();
491 // float tris = fps * get_vfc_tris_drawn();
492 // float culled = fps * get_vfc_tris_culled();
493 // sprintf(buf,"%-4.1f %7.0f %7.0f", fps, tris, culled);
494 sprintf(buf,"%-5.1f", fps);
496 glMatrixMode(GL_PROJECTION);
499 gluOrtho2D(0, width, 0, height);
500 glMatrixMode(GL_MODELVIEW);
504 glDisable(GL_DEPTH_TEST);
505 glDisable(GL_LIGHTING);
507 glColor3f (0.9, 0.4, 0.2);
509 guiFnt.drawString( buf,
510 // width/2 - guiFnt.getStringWidth(buf)/2,
511 int(width - guiFnt.getStringWidth(buf) - 10),
513 glEnable(GL_DEPTH_TEST);
514 glEnable(GL_LIGHTING);
515 glMatrixMode(GL_PROJECTION);
517 glMatrixMode(GL_MODELVIEW);
520 #endif // #ifdef DISPLAY_COUNTER
522 xglViewport( 0, 0, iwidth, iheight );
524 current_panel->update();