2 // fg_init.cxx -- Flight Gear top level initialization routines
4 // Written by Curtis Olson, started August 1997.
6 // Copyright (C) 1997 Curtis L. Olson - curt@infoplane.com
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.
24 // (Log is kept at end of this file)
34 // work around a stdc++ lib bug in some versions of linux, but doesn't
35 // seem to hurt to have this here for all versions of Linux.
37 # define _G_NO_EXTERN_TEMPLATES
42 #include <Include/fg_constants.h>
43 #include <Include/general.h>
45 #include <Aircraft/aircraft.h>
46 #include <Astro/moon.hxx>
47 #include <Astro/planets.hxx>
48 #include <Astro/sky.hxx>
49 #include <Astro/stars.hxx>
50 #include <Astro/sun.hxx>
51 #include <Autopilot/autopilot.h>
52 #include <Cockpit/cockpit.hxx>
53 #include <Debug/fg_debug.h>
54 #include <Joystick/joystick.h>
55 #include <Math/fg_random.h>
56 #include <Scenery/scenery.hxx>
57 #include <Scenery/tilemgr.hxx>
58 #include <Time/event.hxx>
59 #include <Time/fg_time.hxx>
60 #include <Time/light.hxx>
61 #include <Time/sunpos.hxx>
62 #include <Weather/weather.h>
64 #include "airports.hxx"
65 #include "fg_init.hxx"
66 #include "options.hxx"
70 extern const char *default_root;
73 // Set initial position
74 int fgInitPosition( void ) {
78 f = current_aircraft.flight;
80 // If nothing else is specified, default initial position is
82 FG_Longitude = ( -110.6642444 ) * DEG_TO_RAD;
83 FG_Latitude = ( 33.3528917 ) * DEG_TO_RAD;
84 FG_Runway_altitude = (3234.5);
85 FG_Altitude = -1000 /* FG_Runway_altitude + 3.758099 */;
87 // Initial Position north of the city of Globe
88 // FG_Longitude = ( -398673.28 / 3600.0 ) * DEG_TO_RAD;
89 // FG_Latitude = ( 120625.64 / 3600.0 ) * DEG_TO_RAD;
90 // FG_Longitude = ( -397867.44 / 3600.0 ) * DEG_TO_RAD;
91 // FG_Latitude = ( 119548.21 / 3600.0 ) * DEG_TO_RAD;
92 // FG_Altitude = 0.0 + 3.758099;
94 // Initial Position near where I used to live in Globe, AZ
95 // FG_Longitude = ( -398757.6 / 3600.0 ) * DEG_TO_RAD;
96 // FG_Latitude = ( 120160.0 / 3600.0 ) * DEG_TO_RAD;
97 // FG_Runway_altitude = 4000.0;
98 // FG_Altitude = FG_Runway_altitude + 3.758099;
100 // Initial Position: 10125 Jewell St. NE
101 // FG_Longitude = ( -93.15 ) * DEG_TO_RAD;
102 // FG_Latitude = ( 45.15 ) * DEG_TO_RAD;
103 // FG_Runway_altitude = 950.0;
104 // FG_Altitude = FG_Runway_altitude + 3.758099;
106 // Initial Position near KHSP (Hot Springs, VA)
107 // FG_Longitude = (-79.8338964 + 0.01) * DEG_TO_RAD;
108 // FG_Latitude = ( 37.9514564 + 0.008) * DEG_TO_RAD;
109 // FG_Runway_altitude = (3792 + 2800);
110 // FG_Altitude = FG_Runway_altitude + 3.758099;
112 // Initial Position at (SEZ) SEDONA airport
113 // FG_Longitude = (-111.7884614 + 0.01) * DEG_TO_RAD;
114 // FG_Latitude = ( 34.8486289 - 0.015) * DEG_TO_RAD;
115 // FG_Runway_altitude = (4827 + 450);
116 // FG_Altitude = FG_Runway_altitude + 3.758099;
118 // Initial Position: Somewhere near the Grand Canyon
119 // FG_Longitude = ( -112.5 ) * DEG_TO_RAD;
120 // FG_Latitude = ( 36.5 ) * DEG_TO_RAD;
121 // FG_Runway_altitude = 8000.0;
122 // FG_Altitude = FG_Runway_altitude + 3.758099;
124 // Initial Position: Jim Brennon's Kingmont Observatory
125 // FG_Longitude = ( -121.1131667 ) * DEG_TO_RAD;
126 // FG_Latitude = ( 38.8293917 ) * DEG_TO_RAD;
127 // FG_Runway_altitude = 920.0;
128 // FG_Altitude = FG_Runway_altitude + 3.758099;
130 // Initial Position: Huaras, Peru (S09d 31.871' W077d 31.498')
131 // FG_Longitude = ( -77.5249667 ) * DEG_TO_RAD;
132 // FG_Latitude = ( -9.5311833 ) * DEG_TO_RAD;
133 // FG_Runway_altitude = 0.0;
134 // FG_Altitude = FG_Runway_altitude + 3.758099;
136 // Eclipse Watching w73.5 n10 (approx) 18:00 UT
137 // FG_Longitude = ( -73.5 ) * DEG_TO_RAD;
138 // FG_Latitude = ( 10.0 ) * DEG_TO_RAD;
139 // FG_Runway_altitude = 0.0;
140 // FG_Altitude = FG_Runway_altitude + 3.758099;
143 // FG_Longitude = ( 8.5 ) * DEG_TO_RAD;
144 // FG_Latitude = ( 47.5 ) * DEG_TO_RAD;
145 // FG_Runway_altitude = ( 6000 );
146 // FG_Altitude = FG_Runway_altitude + 3.758099;
148 current_options.get_airport_id(id);
153 fgPrintf( FG_GENERAL, FG_INFO,
154 "Attempting to set starting position from airport code %s.\n",
157 airports.load("Airports");
158 a = airports.search(id);
159 if ( (fabs(a.longitude) < FG_EPSILON) &&
160 (fabs(a.latitude) < FG_EPSILON) &&
161 (fabs(a.elevation) < FG_EPSILON) ) {
162 fgPrintf( FG_GENERAL, FG_EXIT,
163 "Failed to find %s in database.\n", id);
165 FG_Longitude = ( a.longitude ) * DEG_TO_RAD;
166 FG_Latitude = ( a.latitude ) * DEG_TO_RAD;
167 FG_Runway_altitude = ( -1000 /* a.elevation */ );
168 FG_Altitude = FG_Runway_altitude + 3.758099;
172 fgPrintf( FG_GENERAL, FG_INFO,
173 "Initial position is: (%.4f, %.4f, %.2f)\n",
174 FG_Longitude * RAD_TO_DEG, FG_Latitude * RAD_TO_DEG,
175 FG_Altitude * FEET_TO_METER);
181 // General house keeping initializations
182 int fgInitGeneral( void ) {
189 fgPrintf( FG_GENERAL, FG_INFO, "General Initialization\n" );
190 fgPrintf( FG_GENERAL, FG_INFO, "======= ==============\n" );
192 g->glVendor = (char *)glGetString ( GL_VENDOR );
193 g->glRenderer = (char *)glGetString ( GL_RENDERER );
194 g->glVersion = (char *)glGetString ( GL_VERSION );
196 current_options.get_fg_root(root);
197 if ( !strlen(root) ) {
198 // No root path set? Then bail ...
199 fgPrintf( FG_GENERAL, FG_EXIT, "%s %s\n",
200 "Cannot continue without environment variable FG_ROOT",
203 fgPrintf( FG_GENERAL, FG_INFO, "FG_ROOT = %s\n\n", root);
205 // prime the frame rate counter pump
206 for ( i = 0; i < FG_FRAME_RATE_HISTORY; i++ ) {
214 // This is the top level init routine which calls all the other
215 // initialization routines. If you are adding a subsystem to flight
216 // gear, its initialization call should located in this routine.
217 // Returns non-zero if a problem encountered.
218 int fgInitSubsystems( void ) {
224 l = &cur_light_params;
225 t = &cur_time_params;
228 fgPrintf( FG_GENERAL, FG_INFO, "Initialize Subsystems\n");
229 fgPrintf( FG_GENERAL, FG_INFO, "========== ==========\n");
231 // seed the random number generater
234 // The following section sets up the flight model EOM parameters
235 // and should really be read in from one or more files.
237 // Must happen before any of the flight model or control
238 // parameters are set
240 fgAircraftInit(); // In the future this might not be the case.
241 f = current_aircraft.flight;
243 // set the initial position
247 FG_V_north = 0.0; // 7.287719E+00
248 FG_V_east = 0.0; // 1.521770E+03
249 FG_V_down = 0.0; // -1.265722E-05
251 // Initial Orientation
252 FG_Phi = -2.658474E-06;
253 FG_Theta = 7.401790E-03;
254 FG_Psi = 270.0 * DEG_TO_RAD;
256 // Initial Angular B rates
257 FG_P_body = 7.206685E-05;
258 FG_Q_body = 0.000000E+00;
259 FG_R_body = 9.492658E-05;
261 FG_Earth_position_angle = 0.000000E+00;
263 // Mass properties and geometry values
264 FG_Mass = 8.547270E+01;
265 FG_I_xx = 1.048000E+03;
266 FG_I_yy = 3.000000E+03;
267 FG_I_zz = 3.530000E+03;
268 FG_I_xz = 0.000000E+00;
270 // CG position w.r.t. ref. point
271 FG_Dx_cg = 0.000000E+00;
272 FG_Dy_cg = 0.000000E+00;
273 FG_Dz_cg = 0.000000E+00;
275 // Initialize the event manager
276 global_events.Init();
278 // Output event stats every 60 seconds
279 global_events.Register( "fgEventPrintStats()", fgEventPrintStats,
280 FG_EVENT_READY, 60000 );
282 // Initialize the time dependent variables
286 // Initialize view parameters
289 v->UpdateWorldToEye(f);
291 // Initialize the orbital elements of sun, moon and mayor planets
292 fgSolarSystemInit(*t);
294 // Initialize the Stars subsystem
295 if( fgStarsInit() ) {
296 // Stars initialized ok.
298 fgPrintf( FG_GENERAL, FG_EXIT, "Error in Stars initialization!\n" );
301 // Initialize the planetary subsystem
302 global_events.Register( "fgPlanetsInit()", fgPlanetsInit,
303 FG_EVENT_READY, 600000);
305 // Initialize the sun's position
306 global_events.Register( "fgSunInit()", fgSunInit,
307 FG_EVENT_READY, 30000 );
309 // Intialize the moon's position
310 global_events.Register( "fgMoonInit()", fgMoonInit,
311 FG_EVENT_READY, 600000 );
313 // fgUpdateSunPos() needs a few position and view parameters set
314 // so it can calculate local relative sun angle and a few other
315 // things for correctly orienting the sky.
318 // Initialize Lighting interpolation tables
321 // update the lighting parameters (based on sun angle)
322 global_events.Register( "fgLightUpdate()", fgLightUpdate,
323 FG_EVENT_READY, 30000 );
325 // Initialize the weather modeling subsystem
328 // update the weather for our current position
329 global_events.Register( "fgWeatherUpdate()", fgWeatherUpdate,
330 FG_EVENT_READY, 120000 );
332 // Initialize the Cockpit subsystem
333 if( fgCockpitInit( ¤t_aircraft )) {
334 // Cockpit initialized ok.
336 fgPrintf( FG_GENERAL, FG_EXIT, "Error in Cockpit initialization!\n" );
339 // Initialize the "sky"
342 // Initialize the Scenery Management subsystem
343 if ( fgSceneryInit() ) {
344 // Scenery initialized ok.
346 fgPrintf( FG_GENERAL, FG_EXIT, "Error in Scenery initialization!\n" );
349 if( fgTileMgrInit() ) {
350 // Load the local scenery data
353 fgPrintf( FG_GENERAL, FG_EXIT,
354 "Error in Tile Manager initialization!\n" );
357 // I'm just sticking this here for now, it should probably move
359 scenery.cur_elev = FG_Runway_altitude * FEET_TO_METER;
361 if ( FG_Altitude < FG_Runway_altitude + 3.758099) {
362 FG_Altitude = FG_Runway_altitude + 3.758099;
365 fgPrintf( FG_GENERAL, FG_INFO,
366 "Updated position (after elevation adj): (%.4f, %.4f, %.2f)\n",
367 FG_Latitude * RAD_TO_DEG, FG_Longitude * RAD_TO_DEG,
368 FG_Altitude * FEET_TO_METER);
369 // end of thing that I just stuck in that I should probably move
371 // Initialize the flight model subsystem data structures base on
374 fgFlightModelInit( FG_LARCSIM, f, 1.0 / DEFAULT_MODEL_HZ );
376 // I'm just sticking this here for now, it should probably move
378 scenery.cur_elev = FG_Runway_altitude * FEET_TO_METER;
380 if ( FG_Altitude < FG_Runway_altitude + 3.758099) {
381 FG_Altitude = FG_Runway_altitude + 3.758099;
384 fgPrintf( FG_GENERAL, FG_INFO,
385 "Updated position (after elevation adj): (%.4f, %.4f, %.2f)\n",
386 FG_Latitude * RAD_TO_DEG, FG_Longitude * RAD_TO_DEG,
387 FG_Altitude * FEET_TO_METER);
388 // end of thing that I just stuck in that I should probably move
391 if (fgJoystickInit(0) ) {
392 // Joystick initialized ok.
394 fgPrintf( FG_GENERAL, FG_EXIT, "Error in Joystick initialization!\n" );
397 // Autopilot init added here, by Jeff Goeke-Smith
398 fgAPInit(¤t_aircraft);
400 fgPrintf(FG_GENERAL, FG_INFO,"\n");
407 // Revision 1.28 1998/07/27 18:41:25 curt
408 // Added a pause command "p"
409 // Fixed some initialization order problems between pui and glut.
410 // Added an --enable/disable-sound option.
412 // Revision 1.27 1998/07/24 21:39:10 curt
413 // Debugging output tweaks.
414 // Cast glGetString to (char *) to avoid compiler errors.
415 // Optimizations to fgGluLookAt() by Norman Vine.
417 // Revision 1.26 1998/07/22 21:40:44 curt
418 // Clear to adjusted fog color (for sunrise/sunset effects)
419 // Make call to fog sunrise/sunset adjustment method.
420 // Add a stdc++ library bug work around to fg_init.cxx
422 // Revision 1.25 1998/07/13 21:01:38 curt
423 // Wrote access functions for current fgOPTIONS.
425 // Revision 1.24 1998/07/13 15:32:39 curt
426 // Clear color buffer if drawing wireframe.
427 // When specifying and airport, start elevation at -1000 and let the system
428 // position you at ground level.
430 // Revision 1.23 1998/07/12 03:14:43 curt
431 // Added ground collision detection.
432 // Did some serious horsing around to be able to "hug" the ground properly
433 // and still be able to take off.
434 // Set the near clip plane to 1.0 meters when less than 10 meters above the
436 // Did some serious horsing around getting the initial airplane position to be
437 // correct based on rendered terrain elevation.
438 // Added a little cheat/hack that will prevent the view position from ever
439 // dropping below the terrain, even when the flight model doesn't quite
440 // put you as high as you'd like.
442 // Revision 1.22 1998/07/04 00:52:25 curt
443 // Add my own version of gluLookAt() (which is nearly identical to the
444 // Mesa/glu version.) But, by calculating the Model View matrix our selves
445 // we can save this matrix without having to read it back in from the video
446 // card. This hopefully allows us to save a few cpu cycles when rendering
447 // out the fragments because we can just use glLoadMatrixd() with the
448 // precalculated matrix for each tile rather than doing a push(), translate(),
449 // pop() for every fragment.
451 // Panel status defaults to off for now until it gets a bit more developed.
453 // Extract OpenGL driver info on initialization.
455 // Revision 1.21 1998/06/27 16:54:33 curt
456 // Replaced "extern displayInstruments" with a entry in fgOPTIONS.
457 // Don't change the view port when displaying the panel.
459 // Revision 1.20 1998/06/17 21:35:12 curt
460 // Refined conditional audio support compilation.
461 // Moved texture parameter setup calls to ../Scenery/materials.cxx
462 // #include <string.h> before various STL includes.
463 // Make HUD default state be enabled.
465 // Revision 1.19 1998/06/08 17:57:05 curt
466 // Minor sound/startup position tweaks.
468 // Revision 1.18 1998/06/03 00:47:14 curt
469 // Updated to compile in audio support if OSS available.
470 // Updated for new version of Steve's audio library.
471 // STL includes don't use .h
472 // Small view optimizations.
474 // Revision 1.17 1998/06/01 17:54:42 curt
475 // Added Linux audio support.
476 // avoid glClear( COLOR_BUFFER_BIT ) when not using it to set the sky color.
479 // Revision 1.16 1998/05/29 20:37:24 curt
480 // Tweaked material properties & lighting a bit in GLUTmain.cxx.
481 // Read airport list into a "map" STL for dynamic list sizing and fast tree
484 // Revision 1.15 1998/05/22 21:28:53 curt
485 // Modifications to use the new fgEVENT_MGR class.
487 // Revision 1.14 1998/05/20 20:51:35 curt
488 // Tweaked smooth shaded texture lighting properties.
489 // Converted fgLIGHT to a C++ class.
491 // Revision 1.13 1998/05/16 13:08:35 curt
492 // C++ - ified views.[ch]xx
493 // Shuffled some additional view parameters into the fgVIEW class.
494 // Changed tile-radius to tile-diameter because it is a much better
496 // Added a WORLD_TO_EYE transformation to views.cxx. This allows us
497 // to transform world space to eye space for view frustum culling.
499 // Revision 1.12 1998/05/13 18:29:58 curt
500 // Added a keyboard binding to dynamically adjust field of view.
501 // Added a command line option to specify fov.
502 // Adjusted terrain color.
503 // Root path info moved to fgOPTIONS.
504 // Added ability to parse options out of a config file.
506 // Revision 1.11 1998/05/07 23:14:15 curt
507 // Added "D" key binding to set autopilot heading.
508 // Made frame rate calculation average out over last 10 frames.
509 // Borland C++ floating point exception workaround.
510 // Added a --tile-radius=n option.
512 // Revision 1.10 1998/05/06 03:16:24 curt
513 // Added an averaged global frame rate counter.
514 // Added an option to control tile radius.
516 // Revision 1.9 1998/05/03 00:47:31 curt
517 // Added an option to enable/disable full-screen mode.
519 // Revision 1.8 1998/04/30 12:34:18 curt
520 // Added command line rendering options:
521 // enable/disable fog/haze
522 // specify smooth/flat shading
523 // disable sky blending and just use a solid color
524 // enable wireframe drawing mode
526 // Revision 1.7 1998/04/28 01:20:22 curt
527 // Type-ified fgTIME and fgVIEW.
528 // Added a command line option to disable textures.
530 // Revision 1.6 1998/04/26 05:10:03 curt
531 // "struct fgLIGHT" -> "fgLIGHT" because fgLIGHT is typedef'd.
533 // Revision 1.5 1998/04/25 22:06:30 curt
534 // Edited cvs log messages in source files ... bad bad bad!
536 // Revision 1.4 1998/04/25 20:24:01 curt
537 // Cleaned up initialization sequence to eliminate interdependencies
538 // between sun position, lighting, and view position. This creates a
539 // valid single pass initialization path.
541 // Revision 1.3 1998/04/25 15:11:11 curt
542 // Added an command line option to set starting position based on airport ID.
544 // Revision 1.2 1998/04/24 00:49:20 curt
545 // Wrapped "#include <config.h>" in "#ifdef HAVE_CONFIG_H"
546 // Trying out some different option parsing code.
547 // Some code reorganization.
549 // Revision 1.1 1998/04/22 13:25:44 curt
550 // C++ - ifing the code.
551 // Starting a bit of reorganization of lighting code.
553 // Revision 1.56 1998/04/18 04:11:28 curt
554 // Moved fg_debug to it's own library, added zlib support.
556 // Revision 1.55 1998/04/14 02:21:03 curt
557 // Incorporated autopilot heading hold contributed by: Jeff Goeke-Smith
558 // <jgoeke@voyager.net>
560 // Revision 1.54 1998/04/08 23:35:36 curt
561 // Tweaks to Gnu automake/autoconf system.
563 // Revision 1.53 1998/04/03 22:09:06 curt
564 // Converting to Gnu autoconf system.
566 // Revision 1.52 1998/03/23 21:24:38 curt
567 // Source code formating tweaks.
569 // Revision 1.51 1998/03/14 00:31:22 curt
570 // Beginning initial terrain texturing experiments.
572 // Revision 1.50 1998/03/09 22:46:19 curt
575 // Revision 1.49 1998/02/23 19:07:59 curt
576 // Incorporated Durk's Astro/ tweaks. Includes unifying the sun position
577 // calculation code between sun display, and other FG sections that use this
578 // for things like lighting.
580 // Revision 1.48 1998/02/21 14:53:15 curt
581 // Added Charlie's HUD changes.
583 // Revision 1.47 1998/02/19 13:05:53 curt
584 // Incorporated some HUD tweaks from Michelle America.
585 // Tweaked the sky's sunset/rise colors.
586 // Other misc. tweaks.
588 // Revision 1.46 1998/02/18 15:07:06 curt
589 // Tweaks to build with SGI OpenGL (and therefor hopefully other accelerated
590 // drivers will work.)
592 // Revision 1.45 1998/02/16 13:39:43 curt
593 // Miscellaneous weekend tweaks. Fixed? a cache problem that caused whole
594 // tiles to occasionally be missing.
596 // Revision 1.44 1998/02/12 21:59:50 curt
597 // Incorporated code changes contributed by Charlie Hotchkiss
598 // <chotchkiss@namg.us.anritsu.com>
600 // Revision 1.43 1998/02/11 02:50:40 curt
603 // Revision 1.42 1998/02/09 22:56:58 curt
604 // Removed "depend" files from cvs control. Other minor make tweaks.
606 // Revision 1.41 1998/02/09 15:07:50 curt
609 // Revision 1.40 1998/02/07 15:29:44 curt
610 // Incorporated HUD changes and struct/typedef changes from Charlie Hotchkiss
611 // <chotchkiss@namg.us.anritsu.com>
613 // Revision 1.39 1998/02/03 23:20:25 curt
614 // Lots of little tweaks to fix various consistency problems discovered by
615 // Solaris' CC. Fixed a bug in fg_debug.c with how the fgPrintf() wrapper
616 // passed arguments along to the real printf(). Also incorporated HUD changes
617 // by Michele America.
619 // Revision 1.38 1998/02/02 20:53:58 curt
620 // Incorporated Durk's changes.
622 // Revision 1.37 1998/02/01 03:39:54 curt
625 // Revision 1.36 1998/01/31 00:43:13 curt
626 // Added MetroWorks patches from Carmen Volpe.
628 // Revision 1.35 1998/01/27 00:47:57 curt
629 // Incorporated Paul Bleisch's <pbleisch@acm.org> new debug message
630 // system and commandline/config file processing code.
632 // Revision 1.34 1998/01/22 02:59:37 curt
633 // Changed #ifdef FILE_H to #ifdef _FILE_H
635 // Revision 1.33 1998/01/21 21:11:34 curt
638 // Revision 1.32 1998/01/19 19:27:08 curt
639 // Merged in make system changes from Bob Kuehne <rpk@sgi.com>
640 // This should simplify things tremendously.
642 // Revision 1.31 1998/01/19 18:40:32 curt
643 // Tons of little changes to clean up the code and to remove fatal errors
644 // when building with the c++ compiler.
646 // Revision 1.30 1998/01/13 00:23:09 curt
647 // Initial changes to support loading and management of scenery tiles. Note,
648 // there's still a fair amount of work left to be done.
650 // Revision 1.29 1998/01/08 02:22:08 curt
651 // Beginning to integrate Tile management subsystem.
653 // Revision 1.28 1998/01/07 03:18:58 curt
654 // Moved astronomical stuff from .../Src/Scenery to .../Src/Astro/
656 // Revision 1.27 1998/01/05 18:44:35 curt
657 // Add an option to advance/decrease time from keyboard.
659 // Revision 1.26 1997/12/30 23:09:04 curt
660 // Tweaking initialization sequences.
662 // Revision 1.25 1997/12/30 22:22:33 curt
663 // Further integration of event manager.
665 // Revision 1.24 1997/12/30 20:47:44 curt
666 // Integrated new event manager with subsystem initializations.
668 // Revision 1.23 1997/12/30 16:36:50 curt
669 // Merged in Durk's changes ...
671 // Revision 1.22 1997/12/19 23:34:05 curt
672 // Lot's of tweaking with sky rendering and lighting.
674 // Revision 1.21 1997/12/19 16:45:00 curt
675 // Working on scene rendering order and options.
677 // Revision 1.20 1997/12/18 23:32:33 curt
678 // First stab at sky dome actually starting to look reasonable. :-)
680 // Revision 1.19 1997/12/17 23:13:36 curt
681 // Began working on rendering a sky.
683 // Revision 1.18 1997/12/15 23:54:49 curt
684 // Add xgl wrappers for debugging.
685 // Generate terrain normals on the fly.
687 // Revision 1.17 1997/12/15 20:59:09 curt
690 // Revision 1.16 1997/12/12 19:52:48 curt
691 // Working on lightling and material properties.
693 // Revision 1.15 1997/12/11 04:43:55 curt
694 // Fixed sun vector and lighting problems. I thing the moon is now lit
697 // Revision 1.14 1997/12/10 22:37:47 curt
698 // Prepended "fg" on the name of all global structures that didn't have it yet.
699 // i.e. "struct WEATHER {}" became "struct fgWEATHER {}"
701 // Revision 1.13 1997/11/25 19:25:32 curt
702 // Changes to integrate Durk's moon/sun code updates + clean up.
704 // Revision 1.12 1997/11/15 18:16:35 curt
707 // Revision 1.11 1997/10/30 12:38:42 curt
708 // Working on new scenery subsystem.
710 // Revision 1.10 1997/10/25 03:24:23 curt
711 // Incorporated sun, moon, and star positioning code contributed by Durk Talsma.
713 // Revision 1.9 1997/09/23 00:29:39 curt
714 // Tweaks to get things to compile with gcc-win32.
716 // Revision 1.8 1997/09/22 14:44:20 curt
717 // Continuing to try to align stars correctly.
719 // Revision 1.7 1997/09/16 15:50:30 curt
720 // Working on star alignment and time issues.
722 // Revision 1.6 1997/09/05 14:17:30 curt
723 // More tweaking with stars.
725 // Revision 1.5 1997/09/04 02:17:36 curt
728 // Revision 1.4 1997/08/27 21:32:26 curt
729 // Restructured view calculation code. Added stars.
731 // Revision 1.3 1997/08/27 03:30:19 curt
732 // Changed naming scheme of basic shared structures.
734 // Revision 1.2 1997/08/25 20:27:23 curt
735 // Merged in initial HUD and Joystick code.
737 // Revision 1.1 1997/08/23 01:46:20 curt