-/**************************************************************************
- * GLUTkey.c -- handle GLUT keyboard events
- *
- * Written by Curtis Olson, started May 1997.
- *
- * Copyright (C) 1997 Curtis L. Olson - curt@infoplane.com
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * $Id$
- * (Log is kept at end of this file)
- **************************************************************************/
+// GLUTkey.cxx -- handle GLUT keyboard events
+//
+// Written by Curtis Olson, started May 1997.
+//
+// Copyright (C) 1997 Curtis L. Olson - curt@me.umn.edu
+//
+// This program is free software; you can redistribute it and/or
+// modify it under the terms of the GNU General Public License as
+// published by the Free Software Foundation; either version 2 of the
+// License, or (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful, but
+// WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+// General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+//
+// $Id$
+// (Log is kept at end of this file)
#ifdef HAVE_CONFIG_H
#include <stdlib.h>
#include <Aircraft/aircraft.h>
-// #include <Astro/orbits.hxx>
-// #include <Astro/sun.hxx>
#include <Astro/solarsystem.hxx>
#include <Astro/sky.hxx>
#include <Autopilot/autopilot.h> // Added autopilot.h to list, Jeff Goeke-Smith
}
-/* Handle keyboard events */
+// Handle keyboard events
void GLUTkey(unsigned char k, int x, int y) {
fgCONTROLS *c;
fgFLIGHT *f;
if ( GLUT_ACTIVE_ALT && glutGetModifiers() ) {
fgPrintf( FG_INPUT, FG_DEBUG, " SHIFTED\n");
switch (k) {
- case 49: /* numeric keypad 1 */
+ case 49: // numeric keypad 1
v->goal_view_offset = FG_PI * 0.75;
return;
- case 50: /* numeric keypad 2 */
+ case 50: // numeric keypad 2
v->goal_view_offset = FG_PI;
return;
- case 51: /* numeric keypad 3 */
+ case 51: // numeric keypad 3
v->goal_view_offset = FG_PI * 1.25;
return;
- case 52: /* numeric keypad 4 */
+ case 52: // numeric keypad 4
v->goal_view_offset = FG_PI * 0.50;
return;
- case 54: /* numeric keypad 6 */
+ case 54: // numeric keypad 6
v->goal_view_offset = FG_PI * 1.50;
return;
- case 55: /* numeric keypad 7 */
+ case 55: // numeric keypad 7
v->goal_view_offset = FG_PI * 0.25;
return;
- case 56: /* numeric keypad 8 */
+ case 56: // numeric keypad 8
v->goal_view_offset = 0.00;
return;
- case 57: /* numeric keypad 9 */
+ case 57: // numeric keypad 9
v->goal_view_offset = FG_PI * 1.75;
return;
- case 72: /* H key */
+ case 72: // H key
// status = current_options.get_hud_status();
// current_options.set_hud_status(!status);
HUD_brightkey( true );
return;
- case 73: /* i key */
+ case 73: // i key
// Minimal Hud
fgHUDInit2(¤t_aircraft);
return;
- case 77: /* M key */
+ case 77: // M key
t->warp -= 60;
local_update_sky_and_lighting_params();
return;
- case 84: /* T key */
+ case 84: // T key
t->warp_delta -= 30;
local_update_sky_and_lighting_params();
return;
- case 87: /* W key */
+ case 87: // W key
#if defined(FX) && !defined(WIN32)
fullscreen = ( !fullscreen );
#if defined(XMESA_FX_FULLSCREEN) && defined(XMESA_FX_WINDOW)
#endif
#endif
return;
- case 88: /* X key */
+ case 88: // X key
fov = current_options.get_fov();
fov *= 1.05;
if ( fov > FG_FOV_MAX ) {
current_options.set_fov(fov);
v->update_fov = TRUE;
return;
- case 90: /* Z key */
- tmp = fgWeatherGetVisibility(); /* in meters */
+ case 90: // Z key
+ tmp = fgWeatherGetVisibility(); // in meters
tmp /= 1.10;
fgWeatherSetVisibility( tmp );
return;
// autopilot additions
- case 65: /* A key */
+ case 65: // A key
fgAPSetMode(1);
return;
- case 83: /* S key */
+ case 83: // S key
fgAPSetMode(0);
return;
- case 68: /* D key */
+ case 68: // D key
fgAPSetHeading(AP_CURRENT_HEADING);
return;
}
} else {
fgPrintf( FG_INPUT, FG_DEBUG, "\n");
switch (k) {
- case 50: /* numeric keypad 2 */
+ case 50: // numeric keypad 2
fgElevMove(-0.05);
return;
- case 56: /* numeric keypad 8 */
+ case 56: // numeric keypad 8
fgElevMove(0.05);
return;
- case 49: /* numeric keypad 1 */
+ case 49: // numeric keypad 1
fgElevTrimMove(-0.001);
return;
- case 55: /* numeric keypad 7 */
+ case 55: // numeric keypad 7
fgElevTrimMove(0.001);
return;
- case 52: /* numeric keypad 4 */
+ case 52: // numeric keypad 4
fgAileronMove(-0.05);
return;
- case 54: /* numeric keypad 6 */
+ case 54: // numeric keypad 6
fgAileronMove(0.05);
return;
- case 48: /* numeric keypad Ins */
+ case 48: // numeric keypad Ins
fgRudderMove(-0.05);
return;
- case 13: /* numeric keypad Enter */
+ case 13: // numeric keypad Enter
fgRudderMove(0.05);
return;
- case 53: /* numeric keypad 5 */
+ case 53: // numeric keypad 5
fgAileronSet(0.0);
fgElevSet(0.0);
fgRudderSet(0.0);
return;
- case 57: /* numeric keypad 9 (Pg Up) */
+ case 57: // numeric keypad 9 (Pg Up)
fgThrottleMove(0, 0.01);
return;
- case 51: /* numeric keypad 3 (Pg Dn) */
+ case 51: // numeric keypad 3 (Pg Dn)
fgThrottleMove(0, -0.01);
return;
- case 104: /* h key */
+ case 104: // h key
HUD_brightkey( false );
return;
- case 105: /* i key */
+ case 105: // i key
fgHUDInit(¤t_aircraft); // normal HUD
return;
- case 109: /* m key */
+ case 109: // m key
t->warp += 60;
local_update_sky_and_lighting_params();
return;
- case 112: /* p key */
+ case 112: // p key
t->pause = !t->pause;
// printf position and attitude information
fgPrintf( FG_INPUT, FG_INFO,
FG_Phi * RAD_TO_DEG,
FG_Theta * RAD_TO_DEG);
return;
- case 116: /* t key */
+ case 116: // t key
t->warp_delta += 30;
local_update_sky_and_lighting_params();
return;
- case 120: /* X key */
+ case 120: // X key
fov = current_options.get_fov();
fov /= 1.05;
if ( fov < FG_FOV_MIN ) {
current_options.set_fov(fov);
v->update_fov = TRUE;
return;
- case 122: /* z key */
- tmp = fgWeatherGetVisibility(); /* in meters */
+ case 122: // z key
+ tmp = fgWeatherGetVisibility(); // in meters
tmp *= 1.10;
fgWeatherSetVisibility( tmp );
return;
- case 27: /* ESC */
+ case 27: // ESC
// if( fg_DebugOutput ) {
// fclose( fg_DebugOutput );
// }
}
-/* Handle "special" keyboard events */
+// Handle "special" keyboard events
void GLUTspecialkey(int k, int x, int y) {
fgCONTROLS *c;
fgVIEW *v;
if ( GLUT_ACTIVE_SHIFT && glutGetModifiers() ) {
fgPrintf( FG_INPUT, FG_DEBUG, " SHIFTED\n");
switch (k) {
- case GLUT_KEY_END: /* numeric keypad 1 */
+ case GLUT_KEY_END: // numeric keypad 1
v->goal_view_offset = FG_PI * 0.75;
return;
- case GLUT_KEY_DOWN: /* numeric keypad 2 */
+ case GLUT_KEY_DOWN: // numeric keypad 2
v->goal_view_offset = FG_PI;
return;
- case GLUT_KEY_PAGE_DOWN: /* numeric keypad 3 */
+ case GLUT_KEY_PAGE_DOWN: // numeric keypad 3
v->goal_view_offset = FG_PI * 1.25;
return;
- case GLUT_KEY_LEFT: /* numeric keypad 4 */
+ case GLUT_KEY_LEFT: // numeric keypad 4
v->goal_view_offset = FG_PI * 0.50;
return;
- case GLUT_KEY_RIGHT: /* numeric keypad 6 */
+ case GLUT_KEY_RIGHT: // numeric keypad 6
v->goal_view_offset = FG_PI * 1.50;
return;
- case GLUT_KEY_HOME: /* numeric keypad 7 */
+ case GLUT_KEY_HOME: // numeric keypad 7
v->goal_view_offset = FG_PI * 0.25;
return;
- case GLUT_KEY_UP: /* numeric keypad 8 */
+ case GLUT_KEY_UP: // numeric keypad 8
v->goal_view_offset = 0.00;
return;
- case GLUT_KEY_PAGE_UP: /* numeric keypad 9 */
+ case GLUT_KEY_PAGE_UP: // numeric keypad 9
v->goal_view_offset = FG_PI * 1.75;
return;
}
} else {
fgPrintf( FG_INPUT, FG_DEBUG, "\n");
switch (k) {
- case GLUT_KEY_F8: /* F8 toggles fog ... off fastest nicest... */
+ case GLUT_KEY_F8: // F8 toggles fog ... off fastest nicest...
current_options.cycle_fog();
if ( current_options.get_fog() == fgOPTIONS::FG_FOG_DISABLED ) {
}
return;
- case GLUT_KEY_F9: /* F9 toggles textures on and off... */
+ case GLUT_KEY_F9: // F9 toggles textures on and off...
if ( material_mgr.get_textures_loaded() ) {
current_options.get_textures() ?
current_options.set_textures(false) :
"No textures loaded, cannot toggle\n" );
}
return;
- case GLUT_KEY_F10: /* F10 toggles menu on and off... */
+ case GLUT_KEY_F10: // F10 toggles menu on and off...
fgPrintf(FG_INPUT, FG_INFO, "Invoking call back function");
hideMenuButton ->
setValue ((int) !(hideMenuButton -> getValue() ) );
case GLUT_KEY_RIGHT:
fgAileronMove(0.05);
return;
- case GLUT_KEY_HOME: /* numeric keypad 1 */
+ case GLUT_KEY_HOME: // numeric keypad 1
fgElevTrimMove(0.001);
return;
- case GLUT_KEY_END: /* numeric keypad 7 */
+ case GLUT_KEY_END: // numeric keypad 7
fgElevTrimMove(-0.001);
return;
- case GLUT_KEY_INSERT: /* numeric keypad Ins */
+ case GLUT_KEY_INSERT: // numeric keypad Ins
fgRudderMove(-0.05);
return;
- case 13: /* numeric keypad Enter */
+ case 13: // numeric keypad Enter
fgRudderMove(0.05);
return;
- case 53: /* numeric keypad 5 */
+ case 53: // numeric keypad 5
fgAileronSet(0.0);
fgElevSet(0.0);
fgRudderSet(0.0);
return;
- case GLUT_KEY_PAGE_UP: /* numeric keypad 9 (Pg Up) */
+ case GLUT_KEY_PAGE_UP: // numeric keypad 9 (Pg Up)
fgThrottleMove(0, 0.01);
return;
- case GLUT_KEY_PAGE_DOWN: /* numeric keypad 3 (Pg Dn) */
+ case GLUT_KEY_PAGE_DOWN: // numeric keypad 3 (Pg Dn)
fgThrottleMove(0, -0.01);
return;
}
}
-/* $Log$
-/* Revision 1.23 1998/09/17 18:35:30 curt
-/* Added F8 to toggle fog and F9 to toggle texturing.
-/*
- * Revision 1.22 1998/09/15 04:27:27 curt
- * Changes for new Astro code.
- *
- * Revision 1.21 1998/08/29 13:09:25 curt
- * Changes to event manager from Bernie Bright.
- *
- * Revision 1.20 1998/08/24 20:11:12 curt
- * Added i/I to toggle full vs. minimal HUD.
- * Added a --hud-tris vs --hud-culled option.
- * Moved options accessor funtions to options.hxx.
- *
- * Revision 1.19 1998/08/05 00:19:33 curt
- * Added a local routine to update lighting params every frame when time is
- * accelerated.
- *
- * Revision 1.18 1998/07/30 23:48:24 curt
- * Output position & orientation when pausing.
- * Eliminated libtool use.
- * Added options to specify initial position and orientation.
- * Changed default fov to 55 degrees.
- * Added command line option to start in paused or unpaused state.
- *
- * Revision 1.17 1998/07/27 18:41:23 curt
- * Added a pause command "p"
- * Fixed some initialization order problems between pui and glut.
- * Added an --enable/disable-sound option.
- *
- * Revision 1.16 1998/07/16 17:33:34 curt
- * "H" / "h" now control hud brightness as well with off being one of the
- * states.
- * Better checking for xmesa/fx 3dfx fullscreen/window support for deciding
- * whether or not to build in the feature.
- * Translucent menu support.
- * HAVE_AUDIO_SUPPORT -> ENABLE_AUDIO_SUPPORT
- * Use fork() / wait() for playing mp3 init music in background under unix.
- * Changed default tile diameter to 5.
- *
- * Revision 1.15 1998/07/13 21:01:34 curt
- * Wrote access functions for current fgOPTIONS.
- *
- * Revision 1.14 1998/07/06 02:42:02 curt
- * Added support for switching between fullscreen and window mode for
- * Mesa/3dfx/glide.
- *
- * Added a basic splash screen. Restructured the main loop and top level
- * initialization routines to do this.
- *
- * Hacked in some support for playing a startup mp3 sound file while rest
- * of sim initializes. Currently only works in Unix using the mpg123 player.
- * Waits for the mpg123 player to finish before initializing internal
- * sound drivers.
- *
- * Revision 1.13 1998/06/27 16:54:32 curt
- * Replaced "extern displayInstruments" with a entry in fgOPTIONS.
- * Don't change the view port when displaying the panel.
- *
- * Revision 1.12 1998/06/12 14:27:26 curt
- * Pui -> PUI, Gui -> GUI.
- *
- * Revision 1.11 1998/06/12 00:57:38 curt
- * Added support for Pui/Gui.
- * Converted fog to GL_FOG_EXP2.
- * Link to static simulator parts.
- * Update runfg.bat to try to be a little smarter.
- *
- * Revision 1.10 1998/05/27 02:24:05 curt
- * View optimizations by Norman Vine.
- *
- * Revision 1.9 1998/05/16 13:05:21 curt
- * Added limits to fov.
- *
- * Revision 1.8 1998/05/13 18:29:56 curt
- * Added a keyboard binding to dynamically adjust field of view.
- * Added a command line option to specify fov.
- * Adjusted terrain color.
- * Root path info moved to fgOPTIONS.
- * Added ability to parse options out of a config file.
- *
- * Revision 1.7 1998/05/07 23:14:14 curt
- * Added "D" key binding to set autopilot heading.
- * Made frame rate calculation average out over last 10 frames.
- * Borland C++ floating point exception workaround.
- * Added a --tile-radius=n option.
- *
- * Revision 1.6 1998/04/28 01:20:20 curt
- * Type-ified fgTIME and fgVIEW.
- * Added a command line option to disable textures.
- *
- * Revision 1.5 1998/04/25 22:06:29 curt
- * Edited cvs log messages in source files ... bad bad bad!
- *
- * Revision 1.4 1998/04/25 20:24:00 curt
- * Cleaned up initialization sequence to eliminate interdependencies
- * between sun position, lighting, and view position. This creates a
- * valid single pass initialization path.
- *
- * Revision 1.3 1998/04/24 14:19:29 curt
- * Fog tweaks.
- *
- * Revision 1.2 1998/04/24 00:49:17 curt
- * Wrapped "#include <config.h>" in "#ifdef HAVE_CONFIG_H"
- * Trying out some different option parsing code.
- * Some code reorganization.
- *
- * Revision 1.1 1998/04/22 13:25:40 curt
- * C++ - ifing the code.
- * Starting a bit of reorganization of lighting code.
- *
- * Revision 1.33 1998/04/18 04:11:25 curt
- * Moved fg_debug to it's own library, added zlib support.
- *
- * Revision 1.32 1998/04/14 02:21:01 curt
- * Incorporated autopilot heading hold contributed by: Jeff Goeke-Smith
- * <jgoeke@voyager.net>
- *
- * Revision 1.31 1998/04/08 23:34:05 curt
- * Patch from Durk to fix trim reversal with numlock key active.
- *
- * Revision 1.30 1998/04/03 22:09:02 curt
- * Converting to Gnu autoconf system.
- *
- * Revision 1.29 1998/02/07 15:29:40 curt
- * Incorporated HUD changes and struct/typedef changes from Charlie Hotchkiss
- * <chotchkiss@namg.us.anritsu.com>
- *
- * Revision 1.28 1998/02/03 23:20:23 curt
- * Lots of little tweaks to fix various consistency problems discovered by
- * Solaris' CC. Fixed a bug in fg_debug.c with how the fgPrintf() wrapper
- * passed arguments along to the real printf(). Also incorporated HUD changes
- * by Michele America.
- *
- * Revision 1.27 1998/01/27 00:47:55 curt
- * Incorporated Paul Bleisch's <pbleisch@acm.org> new debug message
- * system and commandline/config file processing code.
- *
- * Revision 1.26 1998/01/19 19:27:07 curt
- * Merged in make system changes from Bob Kuehne <rpk@sgi.com>
- * This should simplify things tremendously.
- *
- * Revision 1.25 1998/01/05 18:44:34 curt
- * Add an option to advance/decrease time from keyboard.
- *
- * Revision 1.24 1997/12/30 16:36:46 curt
- * Merged in Durk's changes ...
- *
- * Revision 1.23 1997/12/15 23:54:44 curt
- * Add xgl wrappers for debugging.
- * Generate terrain normals on the fly.
- *
- * Revision 1.22 1997/12/10 22:37:45 curt
- * Prepended "fg" on the name of all global structures that didn't have it yet.
- * i.e. "struct WEATHER {}" became "struct fgWEATHER {}"
- *
- * Revision 1.21 1997/08/27 21:32:23 curt
- * Restructured view calculation code. Added stars.
- *
- * Revision 1.20 1997/08/27 03:30:13 curt
- * Changed naming scheme of basic shared structures.
- *
- * Revision 1.19 1997/08/25 20:27:21 curt
- * Merged in initial HUD and Joystick code.
- *
- * Revision 1.18 1997/08/22 21:34:38 curt
- * Doing a bit of reorganizing and house cleaning.
- *
- * Revision 1.17 1997/07/19 22:34:02 curt
- * Moved PI definitions to ../constants.h
- * Moved random() stuff to ../Utils/ and renamed fg_random()
- *
- * Revision 1.16 1997/07/18 23:41:24 curt
- * Tweaks for building with Cygnus Win32 compiler.
- *
- * Revision 1.15 1997/07/16 20:04:47 curt
- * Minor tweaks to aid Win32 port.
- *
- * Revision 1.14 1997/07/12 03:50:20 curt
- * Added an #include <Windows32/Base.h> to help compiling for Win32
- *
- * Revision 1.13 1997/06/25 15:39:46 curt
- * Minor changes to compile with rsxnt/win32.
- *
- * Revision 1.12 1997/06/21 17:12:52 curt
- * Capitalized subdirectory names.
- *
- * Revision 1.11 1997/06/18 04:10:31 curt
- * A couple more runway tweaks ...
- *
- * Revision 1.10 1997/06/18 02:21:23 curt
- * Hacked in a runway
- *
- * Revision 1.9 1997/06/02 03:40:06 curt
- * A tiny bit more view tweaking.
- *
- * Revision 1.8 1997/06/02 03:01:38 curt
- * Working on views (side, front, back, transitions, etc.)
- *
- * Revision 1.7 1997/05/31 19:16:25 curt
- * Elevator trim added.
- *
- * Revision 1.6 1997/05/31 04:13:52 curt
- * WE CAN NOW FLY!!!
- *
- * Continuing work on the LaRCsim flight model integration.
- * Added some MSFS-like keyboard input handling.
- *
- * Revision 1.5 1997/05/30 23:26:19 curt
- * Added elevator/aileron controls.
- *
- * Revision 1.4 1997/05/27 17:44:31 curt
- * Renamed & rearranged variables and routines. Added some initial simple
- * timer/alarm routines so the flight model can be updated on a regular
- * interval.
- *
- * Revision 1.3 1997/05/23 15:40:25 curt
- * Added GNU copyright headers.
- * Fog now works!
- *
- * Revision 1.2 1997/05/23 00:35:12 curt
- * Trying to get fog to work ...
- *
- * Revision 1.1 1997/05/21 15:57:50 curt
- * Renamed due to added GLUT support.
- *
- * Revision 1.2 1997/05/19 18:22:41 curt
- * Parameter tweaking ... starting to stub in fog support.
- *
- * Revision 1.1 1997/05/16 16:05:51 curt
- * Initial revision.
- *
- */
+// $Log$
+// Revision 1.24 1998/09/26 13:16:44 curt
+// C++-ified the comments.
+//
+// Revision 1.23 1998/09/17 18:35:30 curt
+// Added F8 to toggle fog and F9 to toggle texturing.
+//
+// Revision 1.22 1998/09/15 04:27:27 curt
+// Changes for new Astro code.
+//
+// Revision 1.21 1998/08/29 13:09:25 curt
+// Changes to event manager from Bernie Bright.
+//
+// Revision 1.20 1998/08/24 20:11:12 curt
+// Added i/I to toggle full vs. minimal HUD.
+// Added a --hud-tris vs --hud-culled option.
+// Moved options accessor funtions to options.hxx.
+//
+// Revision 1.19 1998/08/05 00:19:33 curt
+// Added a local routine to update lighting params every frame when time is
+// accelerated.
+//
+// Revision 1.18 1998/07/30 23:48:24 curt
+// Output position & orientation when pausing.
+// Eliminated libtool use.
+// Added options to specify initial position and orientation.
+// Changed default fov to 55 degrees.
+// Added command line option to start in paused or unpaused state.
+//
+// Revision 1.17 1998/07/27 18:41:23 curt
+// Added a pause command "p"
+// Fixed some initialization order problems between pui and glut.
+// Added an --enable/disable-sound option.
+//
+// Revision 1.16 1998/07/16 17:33:34 curt
+// "H" / "h" now control hud brightness as well with off being one of the
+// states.
+// Better checking for xmesa/fx 3dfx fullscreen/window support for deciding
+// whether or not to build in the feature.
+// Translucent menu support.
+// HAVE_AUDIO_SUPPORT -> ENABLE_AUDIO_SUPPORT
+// Use fork() / wait() for playing mp3 init music in background under unix.
+// Changed default tile diameter to 5.
+//
+// Revision 1.15 1998/07/13 21:01:34 curt
+// Wrote access functions for current fgOPTIONS.
+//
+// Revision 1.14 1998/07/06 02:42:02 curt
+// Added support for switching between fullscreen and window mode for
+// Mesa/3dfx/glide.
+//
+// Added a basic splash screen. Restructured the main loop and top level
+// initialization routines to do this.
+//
+// Hacked in some support for playing a startup mp3 sound file while rest
+// of sim initializes. Currently only works in Unix using the mpg123 player.
+// Waits for the mpg123 player to finish before initializing internal
+// sound drivers.
+//
+// Revision 1.13 1998/06/27 16:54:32 curt
+// Replaced "extern displayInstruments" with a entry in fgOPTIONS.
+// Don't change the view port when displaying the panel.
+//
+// Revision 1.12 1998/06/12 14:27:26 curt
+// Pui -> PUI, Gui -> GUI.
+//
+// Revision 1.11 1998/06/12 00:57:38 curt
+// Added support for Pui/Gui.
+// Converted fog to GL_FOG_EXP2.
+// Link to static simulator parts.
+// Update runfg.bat to try to be a little smarter.
+//
+// Revision 1.10 1998/05/27 02:24:05 curt
+// View optimizations by Norman Vine.
+//
+// Revision 1.9 1998/05/16 13:05:21 curt
+// Added limits to fov.
+//
+// Revision 1.8 1998/05/13 18:29:56 curt
+// Added a keyboard binding to dynamically adjust field of view.
+// Added a command line option to specify fov.
+// Adjusted terrain color.
+// Root path info moved to fgOPTIONS.
+// Added ability to parse options out of a config file.
+//
+// Revision 1.7 1998/05/07 23:14:14 curt
+// Added "D" key binding to set autopilot heading.
+// Made frame rate calculation average out over last 10 frames.
+// Borland C++ floating point exception workaround.
+// Added a --tile-radius=n option.
+//
+// Revision 1.6 1998/04/28 01:20:20 curt
+// Type-ified fgTIME and fgVIEW.
+// Added a command line option to disable textures.
+//
+// Revision 1.5 1998/04/25 22:06:29 curt
+// Edited cvs log messages in source files ... bad bad bad!
+//
+// Revision 1.4 1998/04/25 20:24:00 curt
+// Cleaned up initialization sequence to eliminate interdependencies
+// between sun position, lighting, and view position. This creates a
+// valid single pass initialization path.
+//
+// Revision 1.3 1998/04/24 14:19:29 curt
+// Fog tweaks.
+//
+// Revision 1.2 1998/04/24 00:49:17 curt
+// Wrapped "#include <config.h>" in "#ifdef HAVE_CONFIG_H"
+// Trying out some different option parsing code.
+// Some code reorganization.
+//
+// Revision 1.1 1998/04/22 13:25:40 curt
+// C++ - ifing the code.
+// Starting a bit of reorganization of lighting code.
+//
+// Revision 1.33 1998/04/18 04:11:25 curt
+// Moved fg_debug to it's own library, added zlib support.
+//
+// Revision 1.32 1998/04/14 02:21:01 curt
+// Incorporated autopilot heading hold contributed by: Jeff Goeke-Smith
+// <jgoeke@voyager.net>
+//
+// Revision 1.31 1998/04/08 23:34:05 curt
+// Patch from Durk to fix trim reversal with numlock key active.
+//
+// Revision 1.30 1998/04/03 22:09:02 curt
+// Converting to Gnu autoconf system.
+//
+// Revision 1.29 1998/02/07 15:29:40 curt
+// Incorporated HUD changes and struct/typedef changes from Charlie Hotchkiss
+// <chotchkiss@namg.us.anritsu.com>
+//
+// Revision 1.28 1998/02/03 23:20:23 curt
+// Lots of little tweaks to fix various consistency problems discovered by
+// Solaris' CC. Fixed a bug in fg_debug.c with how the fgPrintf() wrapper
+// passed arguments along to the real printf(). Also incorporated HUD changes
+// by Michele America.
+//
+// Revision 1.27 1998/01/27 00:47:55 curt
+// Incorporated Paul Bleisch's <pbleisch@acm.org> new debug message
+// system and commandline/config file processing code.
+//
+// Revision 1.26 1998/01/19 19:27:07 curt
+// Merged in make system changes from Bob Kuehne <rpk@sgi.com>
+// This should simplify things tremendously.
+//
+// Revision 1.25 1998/01/05 18:44:34 curt
+// Add an option to advance/decrease time from keyboard.
+//
+// Revision 1.24 1997/12/30 16:36:46 curt
+// Merged in Durk's changes ...
+//
+// Revision 1.23 1997/12/15 23:54:44 curt
+// Add xgl wrappers for debugging.
+// Generate terrain normals on the fly.
+//
+// Revision 1.22 1997/12/10 22:37:45 curt
+// Prepended "fg" on the name of all global structures that didn't have it yet.
+// i.e. "struct WEATHER {}" became "struct fgWEATHER {}"
+//
+// Revision 1.21 1997/08/27 21:32:23 curt
+// Restructured view calculation code. Added stars.
+//
+// Revision 1.20 1997/08/27 03:30:13 curt
+// Changed naming scheme of basic shared structures.
+//
+// Revision 1.19 1997/08/25 20:27:21 curt
+// Merged in initial HUD and Joystick code.
+//
+// Revision 1.18 1997/08/22 21:34:38 curt
+// Doing a bit of reorganizing and house cleaning.
+//
+// Revision 1.17 1997/07/19 22:34:02 curt
+// Moved PI definitions to ../constants.h
+// Moved random() stuff to ../Utils/ and renamed fg_random()
+//
+// Revision 1.16 1997/07/18 23:41:24 curt
+// Tweaks for building with Cygnus Win32 compiler.
+//
+// Revision 1.15 1997/07/16 20:04:47 curt
+// Minor tweaks to aid Win32 port.
+//
+// Revision 1.14 1997/07/12 03:50:20 curt
+// Added an #include <Windows32/Base.h> to help compiling for Win32
+//
+// Revision 1.13 1997/06/25 15:39:46 curt
+// Minor changes to compile with rsxnt/win32.
+//
+// Revision 1.12 1997/06/21 17:12:52 curt
+// Capitalized subdirectory names.
+//
+// Revision 1.11 1997/06/18 04:10:31 curt
+// A couple more runway tweaks ...
+//
+// Revision 1.10 1997/06/18 02:21:23 curt
+// Hacked in a runway
+//
+// Revision 1.9 1997/06/02 03:40:06 curt
+// A tiny bit more view tweaking.
+//
+// Revision 1.8 1997/06/02 03:01:38 curt
+// Working on views (side, front, back, transitions, etc.)
+//
+// Revision 1.7 1997/05/31 19:16:25 curt
+// Elevator trim added.
+//
+// Revision 1.6 1997/05/31 04:13:52 curt
+// WE CAN NOW FLY!!!
+//
+// Continuing work on the LaRCsim flight model integration.
+// Added some MSFS-like keyboard input handling.
+//
+// Revision 1.5 1997/05/30 23:26:19 curt
+// Added elevator/aileron controls.
+//
+// Revision 1.4 1997/05/27 17:44:31 curt
+// Renamed & rearranged variables and routines. Added some initial simple
+// timer/alarm routines so the flight model can be updated on a regular
+// interval.
+//
+// Revision 1.3 1997/05/23 15:40:25 curt
+// Added GNU copyright headers.
+// Fog now works!
+//
+// Revision 1.2 1997/05/23 00:35:12 curt
+// Trying to get fog to work ...
+//
+// Revision 1.1 1997/05/21 15:57:50 curt
+// Renamed due to added GLUT support.
+//
+// Revision 1.2 1997/05/19 18:22:41 curt
+// Parameter tweaking ... starting to stub in fog support.
+//
+// Revision 1.1 1997/05/16 16:05:51 curt
+// Initial revision.
+