-/* -*- Mode: C++ -*-
- *
- * fg_init.c -- Flight Gear top level initialization routines
- *
- * Written by Curtis Olson, started August 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)
- **************************************************************************/
+//
+// fg_init.cxx -- Flight Gear top level initialization routines
+//
+// Written by Curtis Olson, started August 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)
#ifdef HAVE_CONFIG_H
#include <stdio.h>
#include <stdlib.h>
+// work around a stdc++ lib bug in some versions of linux, but doesn't
+// seem to hurt to have this here for all versions of Linux.
+#ifdef linux
+# define _G_NO_EXTERN_TEMPLATES
+#endif
+
+#include <string>
+
#include <Include/fg_constants.h>
#include <Include/general.h>
-#include <Aircraft/aircraft.h>
-#include <Astro/moon.hxx>
-#include <Astro/planets.hxx>
+#include <Aircraft/aircraft.hxx>
+#include <Airports/simple.hxx>
#include <Astro/sky.hxx>
#include <Astro/stars.hxx>
-#include <Astro/sun.hxx>
-#include <Autopilot/autopilot.h>
+#include <Astro/solarsystem.hxx>
+#include <Autopilot/autopilot.hxx>
#include <Cockpit/cockpit.hxx>
-#include <Debug/fg_debug.h>
-#include <Joystick/joystick.h>
+// #include <Debug/fg_debug.h>
+#include <Debug/logstream.hxx>
+#include <Joystick/joystick.hxx>
+#include <Math/fg_geodesy.hxx>
#include <Math/fg_random.h>
-#include <Scenery/scenery.h>
+#include <Math/point3d.hxx>
+#include <Math/polar3d.hxx>
+#include <Scenery/scenery.hxx>
#include <Scenery/tilemgr.hxx>
#include <Time/event.hxx>
#include <Time/fg_time.hxx>
#include <Time/light.hxx>
#include <Time/sunpos.hxx>
-#include <Weather/weather.h>
+#include <Weather/weather.hxx>
#include "fg_init.hxx"
+#include "options.hxx"
#include "views.hxx"
-extern int show_hud; /* HUD state */
-extern int displayInstruments;
+
extern const char *default_root;
-/* General house keeping initializations */
-int fgInitGeneral( void ) {
- fgGENERAL *g;
-
- g = &general;
-
- // determine the fg root path.
- if( !(g->root_dir) ) {
- // If not set by command line test for environmental var..
- g->root_dir = getenv("FG_ROOT");
- if ( !g->root_dir ) {
- // No root path set? Then assume, we will exit if this is
- // wrong when looking for support files.
- fgPrintf( FG_GENERAL, FG_EXIT, "%s %s\n",
- "Cannot continue without environment variable FG_ROOT",
- "being defined.");
+// Set initial position and orientation
+int fgInitPosition( void ) {
+ string id;
+ FGState *f;
+
+ f = current_aircraft.fdm_state;
+
+ id = current_options.get_airport_id();
+ if ( id.length() ) {
+ // set initial position from airport id
+
+ fgAIRPORTS airports;
+ fgAIRPORT a;
+
+ FG_LOG( FG_GENERAL, FG_INFO,
+ "Attempting to set starting position from airport code "
+ << id );
+
+ airports.load("apt_simple");
+ if ( ! airports.search( id, &a ) ) {
+ FG_LOG( FG_GENERAL, FG_ALERT,
+ "Failed to find " << id << " in database." );
+ exit(-1);
+ } else {
+ f->set_Longitude( a.longitude * DEG_TO_RAD );
+ f->set_Latitude( a.latitude * DEG_TO_RAD );
}
+ } else {
+ // set initial position from default or command line coordinates
+
+ f->set_Longitude( current_options.get_lon() * DEG_TO_RAD );
+ f->set_Latitude( current_options.get_lat() * DEG_TO_RAD );
}
- fgPrintf( FG_GENERAL, FG_INFO, "FG_ROOT = %s\n\n", g->root_dir);
+ FG_LOG( FG_GENERAL, FG_INFO,
+ "starting altitude is = " << current_options.get_altitude() );
- fgPrintf( FG_GENERAL, FG_INFO, "General Initialization\n" );
- fgPrintf( FG_GENERAL, FG_INFO, "======= ==============\n" );
+ f->set_Altitude( current_options.get_altitude() * METER_TO_FEET );
+ f->set_Runway_altitude( f->get_Altitude() - 3.758099 );
- // seed the random number generater
- fg_srandom();
+ FG_LOG( FG_GENERAL, FG_INFO,
+ "Initial position is: ("
+ << (f->get_Longitude() * RAD_TO_DEG) << ", "
+ << (f->get_Latitude() * RAD_TO_DEG) << ", "
+ << (f->get_Altitude() * FEET_TO_METER) << ")" );
+
+ return(1);
+}
+
+
+// General house keeping initializations
+int fgInitGeneral( void ) {
+ string root;
+ int i;
+
+ FG_LOG( FG_GENERAL, FG_INFO, "General Initialization" );
+ FG_LOG( FG_GENERAL, FG_INFO, "======= ==============" );
+
+ root = current_options.get_fg_root();
+ if ( ! root.length() ) {
+ // No root path set? Then bail ...
+ FG_LOG( FG_GENERAL, FG_ALERT,
+ "Cannot continue without environment variable FG_ROOT"
+ << "being defined." );
+ exit(-1);
+ }
+ FG_LOG( FG_GENERAL, FG_INFO, "FG_ROOT = " << root << endl );
+
+ // prime the frame rate counter pump
+ for ( i = 0; i < FG_FRAME_RATE_HISTORY; i++ ) {
+ general.frames[i] = 0.0;
+ }
return ( 1 );
}
// initialization routines. If you are adding a subsystem to flight
// gear, its initialization call should located in this routine.
// Returns non-zero if a problem encountered.
-
-int fgInitSubsystems( void ) {
- double cur_elev;
-
- fgFLIGHT *f;
- struct fgLIGHT *l;
- struct fgTIME *t;
- struct fgVIEW *v;
+int fgInitSubsystems( void )
+{
+ FGState *f;
+ fgLIGHT *l;
+ fgTIME *t;
+ fgVIEW *v;
+ Point3D geod_pos, abs_view_pos;
l = &cur_light_params;
t = &cur_time_params;
v = ¤t_view;
- fgPrintf( FG_GENERAL, FG_INFO, "Initialize Subsystems\n");
- fgPrintf( FG_GENERAL, FG_INFO, "========== ==========\n");
-
- /****************************************************************
- * The following section sets up the flight model EOM parameters and
- * should really be read in from one or more files.
- ****************************************************************/
+ FG_LOG( FG_GENERAL, FG_INFO, "Initialize Subsystems");
+ FG_LOG( FG_GENERAL, FG_INFO, "========== ==========");
- // Must happen before any of the flight model or control
- // parameters are set
+ // seed the random number generater
+ fg_srandom();
+ // allocates structures so must happen before any of the flight
+ // model or control parameters are set
fgAircraftInit(); // In the future this might not be the case.
- f = current_aircraft.flight;
-
- // Initial Position at (P13) Globe, AZ
- FG_Longitude = ( -110.6642444 ) * DEG_TO_RAD;
- FG_Latitude = ( 33.3528917 ) * DEG_TO_RAD;
- FG_Runway_altitude = (3234.5 + 300);
- FG_Altitude = FG_Runway_altitude + 3.758099;
-
- // Initial Position at (E81) Superior, AZ
- // FG_Longitude = ( -111.1270650 ) * DEG_TO_RAD;
- // FG_Latitude = ( 33.2778339 ) * DEG_TO_RAD;
- // FG_Runway_altitude = (2646 + 100);
- // FG_Altitude = FG_Runway_altitude + 3.758099;
-
- // Initial Position at (TUS) Tucson, AZ
- // FG_Longitude = ( -110.9412597 ) * DEG_TO_RAD;
- // FG_Latitude = ( 32.1162439 ) * DEG_TO_RAD;
- // FG_Runway_altitude = (2641 + 0);
- // FG_Altitude = FG_Runway_altitude + 3.758099;
-
- // Initial Position at (SEZ) SEDONA airport
- // FG_Longitude = (-111.7884614 + 0.01) * DEG_TO_RAD;
- // FG_Latitude = ( 34.8486289 - 0.015) * DEG_TO_RAD;
- // FG_Runway_altitude = (4827 + 450);
- // FG_Altitude = FG_Runway_altitude + 3.758099;
-
- // Initial Position at near Anchoraze, AK
- // FG_Longitude = ( -152.00 ) * DEG_TO_RAD;
- // FG_Latitude = ( 61.17 ) * DEG_TO_RAD;
- // FG_Runway_altitude = (0);
- // FG_Altitude = FG_Runway_altitude + 3.758099;
-
- // Initial Position at (HSP) Hot Springs, VA
- // FG_Longitude = (-79.8338964 + 0.01) * DEG_TO_RAD;
- // FG_Latitude = ( 37.9514564 + 0.008) * DEG_TO_RAD;
- // FG_Runway_altitude = (3792 + 1300);
- // FG_Altitude = FG_Runway_altitude + 3.758099;
-
- // Initial Position at (ANE) Anoka County airport
- // FG_Longitude = -93.2113889 * DEG_TO_RAD;
- // FG_Latitude = 45.145 * DEG_TO_RAD;
- // FG_Runway_altitude = 912;
- // FG_Altitude = FG_Runway_altitude + 3.758099;
-
- // Initial Position north of the city of Globe
- // FG_Longitude = ( -398673.28 / 3600.0 ) * DEG_TO_RAD;
- // FG_Latitude = ( 120625.64 / 3600.0 ) * DEG_TO_RAD;
- // FG_Longitude = ( -397867.44 / 3600.0 ) * DEG_TO_RAD;
- // FG_Latitude = ( 119548.21 / 3600.0 ) * DEG_TO_RAD;
- // FG_Altitude = 0.0 + 3.758099;
-
- // Initial Position near where I used to live in Globe, AZ
- // FG_Longitude = ( -398757.6 / 3600.0 ) * DEG_TO_RAD;
- // FG_Latitude = ( 120160.0 / 3600.0 ) * DEG_TO_RAD;
- // FG_Runway_altitude = 4000.0;
- // FG_Altitude = FG_Runway_altitude + 3.758099;
-
- // Initial Position: 10125 Jewell St. NE
- // FG_Longitude = ( -93.15 ) * DEG_TO_RAD;
- // FG_Latitude = ( 45.15 ) * DEG_TO_RAD;
- // FG_Runway_altitude = 950.0;
- // FG_Altitude = FG_Runway_altitude + 3.758099;
-
- // Initial Position: Somewhere near the Grand Canyon
- // FG_Longitude = ( -112.5 ) * DEG_TO_RAD;
- // FG_Latitude = ( 36.5 ) * DEG_TO_RAD;
- // FG_Runway_altitude = 8000.0;
- // FG_Altitude = FG_Runway_altitude + 3.758099;
-
- // Initial Position: (GCN) Grand Canyon Airport, AZ
- // FG_Longitude = ( -112.1469647 ) * DEG_TO_RAD;
- // FG_Latitude = ( 35.9523539 ) * DEG_TO_RAD;
- // FG_Runway_altitude = 6606.0;
- // FG_Altitude = FG_Runway_altitude + 3.758099;
-
- // Initial Position: Jim Brennon's Kingmont Observatory
- // FG_Longitude = ( -121.1131667 ) * DEG_TO_RAD;
- // FG_Latitude = ( 38.8293917 ) * DEG_TO_RAD;
- // FG_Runway_altitude = 920.0;
- // FG_Altitude = FG_Runway_altitude + 3.758099;
-
- // probably interesting for european team members
- // That is: If I can get the scenery to work -;) (Durk)
-
- // Initial Position: Groningen Airport Eelde, the netherlands
- // FG_Longitude = ( 6.583333 ) * DEG_TO_RAD;
- // FG_Latitude = ( 53.125 ) * DEG_TO_RAD;
- // FG_Runway_altitude = 920.0;
- // FG_Altitude = FG_Runway_altitude + 3.758099;
-
- // Initial Position: Schiphol Amsterdam Airport, the netherlands
- // FG_Longitude = ( -4.7641667 ) * DEG_TO_RAD;
- // FG_Latitude = ( 52.308056 ) * DEG_TO_RAD;
- // FG_Runway_altitude = 920.0;
- // FG_Altitude = FG_Runway_altitude + 3.758099;
-
- // Eclipse Watching w73.5 n10 (approx) 18:00 UT
- // FG_Longitude = ( -73.5 ) * DEG_TO_RAD;
- // FG_Latitude = ( 10.0 ) * DEG_TO_RAD;
- // FG_Runway_altitude = 0.0;
- // FG_Altitude = FG_Runway_altitude + 3.758099;
-
- // Test Position
- // FG_Longitude = ( -109.5 ) * DEG_TO_RAD;
- // FG_Latitude = ( 32.5 ) * DEG_TO_RAD;
- // FG_Runway_altitude = (2646 + 2000);
- // FG_Altitude = FG_Runway_altitude + 3.758099;
-
- fgPrintf( FG_GENERAL, FG_INFO,
- "Initial position is: (%.4f, %.4f, %.2f)\n",
- FG_Longitude * RAD_TO_DEG, FG_Latitude * RAD_TO_DEG,
- FG_Altitude * FEET_TO_METER);
+ f = current_aircraft.fdm_state;
+
+ // set the initial position
+ fgInitPosition();
+
+ // Initialize the Scenery Management subsystem
+ if ( fgSceneryInit() ) {
+ // Scenery initialized ok.
+ } else {
+ FG_LOG( FG_GENERAL, FG_ALERT, "Error in Scenery initialization!" );
+ exit(-1);
+ }
+
+ if( fgTileMgrInit() ) {
+ // Load the local scenery data
+ fgTileMgrUpdate();
+ } else {
+ FG_LOG( FG_GENERAL, FG_ALERT, "Error in Tile Manager initialization!" );
+ exit(-1);
+ }
+
+ // Calculate ground elevation at starting point (we didn't have
+ // abs_view_pos calculated when fgTileMgrUpdate() was called above
+
+ // calculalate a cartesian point somewhere along the line between
+ // the center of the earth and our view position. Doesn't have to
+ // be the exact elevation (this is good because we don't know it
+ // yet :-)
+ geod_pos = Point3D( f->get_Longitude(), f->get_Latitude(), 0.0);
+ abs_view_pos = fgGeodToCart(geod_pos);
+
+ FG_LOG( FG_GENERAL, FG_DEBUG,
+ "Altitude before update " << scenery.cur_elev );
+ scenery.cur_elev =
+ fgTileMgrCurElevOLD( f->get_Longitude(),
+ f->get_Latitude(),
+ abs_view_pos );
+ FG_LOG( FG_GENERAL, FG_DEBUG,
+ "Altitude after update " << scenery.cur_elev );
+ f->set_Runway_altitude( scenery.cur_elev * METER_TO_FEET );
+
+ // Reset our altitude if we are below ground
+ if ( f->get_Altitude() < f->get_Runway_altitude() + 3.758099) {
+ f->set_Altitude( f->get_Runway_altitude() + 3.758099 );
+ }
+
+ FG_LOG( FG_GENERAL, FG_INFO,
+ "Updated position (after elevation adj): ("
+ << (f->get_Latitude() * RAD_TO_DEG) << ", "
+ << (f->get_Longitude() * RAD_TO_DEG) << ", "
+ << (f->get_Altitude() * FEET_TO_METER) << ")" );
+ // end of thing that I just stuck in that I should probably move
+
+ // The following section sets up the flight model EOM parameters
+ // and should really be read in from one or more files.
// Initial Velocity
- FG_V_north = 0.0 /* 7.287719E+00 */;
- FG_V_east = 0.0 /* 1.521770E+03 */;
- FG_V_down = 0.0 /* -1.265722E-05 */;
+ f->set_Velocities_Local( 0.0, 0.0, 0.0 );
// Initial Orientation
- FG_Phi = -2.658474E-06;
- FG_Theta = 7.401790E-03;
- FG_Psi = 270.0 * DEG_TO_RAD;
+ f->set_Euler_Angles( current_options.get_roll() * DEG_TO_RAD,
+ current_options.get_pitch() * DEG_TO_RAD,
+ current_options.get_heading() * DEG_TO_RAD );
- // Initial Angular B rates
- FG_P_body = 7.206685E-05;
- FG_Q_body = 0.000000E+00;
- FG_R_body = 9.492658E-05;
+ // Initial Angular Body rates
+ f->set_Omega_Body( 7.206685E-05, 0.0, 9.492658E-05 );
- FG_Earth_position_angle = 0.000000E+00;
+ f->set_Earth_position_angle( 0.0 );
// Mass properties and geometry values
- FG_Mass = 8.547270E+01;
- FG_I_xx = 1.048000E+03;
- FG_I_yy = 3.000000E+03;
- FG_I_zz = 3.530000E+03;
- FG_I_xz = 0.000000E+00;
+ f->set_Inertias( 8.547270E+01,
+ 1.048000E+03, 3.000000E+03, 3.530000E+03, 0.000000E+00 );
// CG position w.r.t. ref. point
- FG_Dx_cg = 0.000000E+00;
- FG_Dy_cg = 0.000000E+00;
- FG_Dz_cg = 0.000000E+00;
-
- // Set initial position and slew parameters
- // fgSlewInit(-398391.3, 120070.41, 244, 3.1415); // GLOBE Airport
- // fgSlewInit(-335340,162540, 15, 4.38);
- // fgSlewInit(-398673.28,120625.64, 53, 4.38);
+ f->set_CG_Position( 0.0, 0.0, 0.0 );
// Initialize the event manager
- fgEventInit();
+ global_events.Init();
- // Dump event stats every 60 seconds
- fgEventRegister( "fgEventPrintStats()", fgEventPrintStats,
- FG_EVENT_READY, 60000 );
+ // Output event stats every 60 seconds
+ global_events.Register( "fgEVENT_MGR::PrintStats()",
+ fgMethodCallback<fgEVENT_MGR>( &global_events,
+ &fgEVENT_MGR::PrintStats),
+ fgEVENT::FG_EVENT_READY, 60000 );
- // Initialize "time"
+ // Initialize the time dependent variables
fgTimeInit(t);
fgTimeUpdate(f, t);
- // fgViewUpdate() needs the sun in the right place, while
- // fgUpdateSunPos() needs to know the view position. I'll get
- // around this interdependency for now by calling fgUpdateSunPos()
- // once, then moving on with normal initialization.
- fgUpdateSunPos();
-
// Initialize view parameters
- fgViewInit(v);
- fgViewUpdate(f, v, l);
-
- // Initialize Lighting interpolation tables
- fgLightInit();
-
- // update the lighting parameters (based on sun angle)
- fgEventRegister( "fgLightUpdate()", fgLightUpdate,
- FG_EVENT_READY, 30000 );
-
- // Initialize the weather modeling subsystem
- fgWeatherInit();
-
- // update the weather for our current position
- fgEventRegister( "fgWeatherUpdate()", fgWeatherUpdate,
- FG_EVENT_READY, 120000 );
-
- // Initialize the Cockpit subsystem
- if( fgCockpitInit( ¤t_aircraft )) {
- // Cockpit initialized ok.
- } else {
- fgPrintf( FG_GENERAL, FG_EXIT, "Error in Cockpit initialization!\n" );
- }
-
- // Initialize the orbital elements of sun, moon and mayor planets
- fgSolarSystemInit(*t);
+ FG_LOG( FG_GENERAL, FG_DEBUG, "Before v->init()");
+ v->Init();
+ FG_LOG( FG_GENERAL, FG_DEBUG, "After v->init()");
+ v->UpdateViewMath(f);
+ FG_LOG( FG_GENERAL, FG_DEBUG, " abs_view_pos = " << v->abs_view_pos );
+ v->UpdateWorldToEye(f);
+
+ // Build the solar system
+ //fgSolarSystemInit(*t);
+ FG_LOG(FG_GENERAL, FG_INFO, "Building SolarSystem");
+ SolarSystem::theSolarSystem = new SolarSystem(t);
// Initialize the Stars subsystem
if( fgStarsInit() ) {
// Stars initialized ok.
} else {
- fgPrintf( FG_GENERAL, FG_EXIT, "Error in Stars initialization!\n" );
+ FG_LOG( FG_GENERAL, FG_ALERT, "Error in Stars initialization!" );
+ exit(-1);
}
// Initialize the planetary subsystem
- fgEventRegister("fgPlanetsInit()", fgPlanetsInit, FG_EVENT_READY, 600000);
+ // global_events.Register( "fgPlanetsInit()", fgPlanetsInit,
+ // fgEVENT::FG_EVENT_READY, 600000);
// Initialize the sun's position
- fgEventRegister("fgSunInit()", fgSunInit, FG_EVENT_READY, 30000 );
+ // global_events.Register( "fgSunInit()", fgSunInit,
+ // fgEVENT::FG_EVENT_READY, 30000 );
// Intialize the moon's position
- fgEventRegister( "fgMoonInit()", fgMoonInit, FG_EVENT_READY, 600000 );
+ // global_events.Register( "fgMoonInit()", fgMoonInit,
+ // fgEVENT::FG_EVENT_READY, 600000 );
- // Initialize the "sky"
- fgSkyInit();
-
- // Initialize the Scenery Management subsystem
- if ( fgSceneryInit() ) {
- // Scenery initialized ok.
- } else {
- fgPrintf( FG_GENERAL, FG_EXIT, "Error in Scenery initialization!\n" );
- }
+ // register the periodic update of Sun, moon, and planets
+ global_events.Register( "ssolsysUpdate", solarSystemRebuild,
+ fgEVENT::FG_EVENT_READY, 600000);
+
+ // fgUpdateSunPos() needs a few position and view parameters set
+ // so it can calculate local relative sun angle and a few other
+ // things for correctly orienting the sky.
+ fgUpdateSunPos();
+ global_events.Register( "fgUpdateSunPos()", fgUpdateSunPos,
+ fgEVENT::FG_EVENT_READY, 60000);
+ // Initialize Lighting interpolation tables
+ l->Init();
- if( fgTileMgrInit() ) {
- // Load the local scenery data
- fgTileMgrUpdate();
- } else {
- fgPrintf( FG_GENERAL, FG_EXIT,
- "Error in Tile Manager initialization!\n" );
- }
+ // update the lighting parameters (based on sun angle)
+ global_events.Register( "fgLight::Update()",
+ fgMethodCallback<fgLIGHT>( &cur_light_params,
+ &fgLIGHT::Update),
+ fgEVENT::FG_EVENT_READY, 30000 );
- // I'm just sticking this here for now, it should probably move
- // eventually
- // cur_elev = mesh_altitude(FG_Longitude * RAD_TO_DEG * 3600.0,
- // FG_Latitude * RAD_TO_DEG * 3600.0);
- // fgPrintf( FG_GENERAL, FG_INFO,
- // "True ground elevation is %.2f meters here.\n",
- // cur_elev);
-
- cur_elev = FG_Runway_altitude * FEET_TO_METER;
- if ( cur_elev > -9990.0 ) {
- FG_Runway_altitude = cur_elev * METER_TO_FEET;
- }
+ // Initialize the weather modeling subsystem
+ fgWeatherInit();
- if ( FG_Altitude < FG_Runway_altitude ) {
- FG_Altitude = FG_Runway_altitude + 3.758099;
+ // Initialize the Cockpit subsystem
+ if( fgCockpitInit( ¤t_aircraft )) {
+ // Cockpit initialized ok.
+ } else {
+ FG_LOG( FG_GENERAL, FG_ALERT, "Error in Cockpit initialization!" );
+ exit(-1);
}
- fgPrintf(FG_GENERAL, FG_INFO,
- "Updated position (after elevation adj): (%.4f, %.4f, %.2f)\n",
- FG_Latitude * RAD_TO_DEG, FG_Longitude * RAD_TO_DEG,
- FG_Altitude * FEET_TO_METER);
+ // Initialize the "sky"
+ fgSkyInit();
- // end of thing that I just stuck in that I should probably move
-
// Initialize the flight model subsystem data structures base on
// above values
- fgFlightModelInit( FG_LARCSIM, f, 1.0 / DEFAULT_MODEL_HZ );
+ fgFlightModelInit( current_options.get_flight_model(), cur_fdm_state,
+ 1.0 / DEFAULT_MODEL_HZ );
+
+ // I'm just sticking this here for now, it should probably move
+ // eventually
+ scenery.cur_elev = f->get_Runway_altitude() * FEET_TO_METER;
- // To HUD or not to HUD - Now a command line issue
- // show_hud = 0;
+ if ( f->get_Altitude() < f->get_Runway_altitude() + 3.758099) {
+ f->set_Altitude( f->get_Runway_altitude() + 3.758099 );
+ }
- // Let's not show the instrument panel
- displayInstruments = 0;
+ FG_LOG( FG_GENERAL, FG_INFO,
+ "Updated position (after elevation adj): ("
+ << (f->get_Latitude() * RAD_TO_DEG) << ", "
+ << (f->get_Longitude() * RAD_TO_DEG) << ", "
+ << (f->get_Altitude() * FEET_TO_METER) << ")" );
+ // end of thing that I just stuck in that I should probably move
// Joystick support
- if (fgJoystickInit(0) ) {
+ if ( fgJoystickInit() ) {
// Joystick initialized ok.
} else {
- fgPrintf( FG_GENERAL, FG_EXIT, "Error in Joystick initialization!\n" );
+ FG_LOG( FG_GENERAL, FG_ALERT, "Error in Joystick initialization!" );
}
// Autopilot init added here, by Jeff Goeke-Smith
fgAPInit(¤t_aircraft);
-
- // One more try here to get the sky synced up
- fgSkyColorsInit();
- fgPrintf(FG_GENERAL, FG_INFO,"\n");
+ // Initialize serial ports
+ fgSerialInit();
+
+ FG_LOG( FG_GENERAL, FG_INFO, endl);
return(1);
}
-/* $Log$
-/* Revision 1.2 1998/04/24 00:49:20 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 13:25:44 curt
- * C++ - ifing the code.
- * Starting a bit of reorganization of lighting code.
- *
- * Revision 1.56 1998/04/18 04:11:28 curt
- * Moved fg_debug to it's own library, added zlib support.
- *
- * Revision 1.55 1998/04/14 02:21:03 curt
- * Incorporated autopilot heading hold contributed by: Jeff Goeke-Smith
- * <jgoeke@voyager.net>
- *
- * Revision 1.54 1998/04/08 23:35:36 curt
- * Tweaks to Gnu automake/autoconf system.
- *
- * Revision 1.53 1998/04/03 22:09:06 curt
- * Converting to Gnu autoconf system.
- *
- * Revision 1.52 1998/03/23 21:24:38 curt
- * Source code formating tweaks.
- *
- * Revision 1.51 1998/03/14 00:31:22 curt
- * Beginning initial terrain texturing experiments.
- *
- * Revision 1.50 1998/03/09 22:46:19 curt
- * Minor tweaks.
- *
- * Revision 1.49 1998/02/23 19:07:59 curt
- * Incorporated Durk's Astro/ tweaks. Includes unifying the sun position
- * calculation code between sun display, and other FG sections that use this
- * for things like lighting.
- *
- * Revision 1.48 1998/02/21 14:53:15 curt
- * Added Charlie's HUD changes.
- *
- * Revision 1.47 1998/02/19 13:05:53 curt
- * Incorporated some HUD tweaks from Michelle America.
- * Tweaked the sky's sunset/rise colors.
- * Other misc. tweaks.
- *
- * Revision 1.46 1998/02/18 15:07:06 curt
- * Tweaks to build with SGI OpenGL (and therefor hopefully other accelerated
- * drivers will work.)
- *
- * Revision 1.45 1998/02/16 13:39:43 curt
- * Miscellaneous weekend tweaks. Fixed? a cache problem that caused whole
- * tiles to occasionally be missing.
- *
- * Revision 1.44 1998/02/12 21:59:50 curt
- * Incorporated code changes contributed by Charlie Hotchkiss
- * <chotchkiss@namg.us.anritsu.com>
- *
- * Revision 1.43 1998/02/11 02:50:40 curt
- * Minor changes.
- *
- * Revision 1.42 1998/02/09 22:56:58 curt
- * Removed "depend" files from cvs control. Other minor make tweaks.
- *
- * Revision 1.41 1998/02/09 15:07:50 curt
- * Minor tweaks.
- *
- * Revision 1.40 1998/02/07 15:29:44 curt
- * Incorporated HUD changes and struct/typedef changes from Charlie Hotchkiss
- * <chotchkiss@namg.us.anritsu.com>
- *
- * Revision 1.39 1998/02/03 23:20:25 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 1.38 1998/02/02 20:53:58 curt
- * Incorporated Durk's changes.
- *
- * Revision 1.37 1998/02/01 03:39:54 curt
- * Minor tweaks.
- *
- * Revision 1.36 1998/01/31 00:43:13 curt
- * Added MetroWorks patches from Carmen Volpe.
- *
- * Revision 1.35 1998/01/27 00:47:57 curt
- * Incorporated Paul Bleisch's <bleisch@chromatic.com> new debug message
- * system and commandline/config file processing code.
- *
- * Revision 1.34 1998/01/22 02:59:37 curt
- * Changed #ifdef FILE_H to #ifdef _FILE_H
- *
- * Revision 1.33 1998/01/21 21:11:34 curt
- * Misc. tweaks.
- *
- * Revision 1.32 1998/01/19 19:27:08 curt
- * Merged in make system changes from Bob Kuehne <rpk@sgi.com>
- * This should simplify things tremendously.
- *
- * Revision 1.31 1998/01/19 18:40:32 curt
- * Tons of little changes to clean up the code and to remove fatal errors
- * when building with the c++ compiler.
- *
- * Revision 1.30 1998/01/13 00:23:09 curt
- * Initial changes to support loading and management of scenery tiles. Note,
- * there's still a fair amount of work left to be done.
- *
- * Revision 1.29 1998/01/08 02:22:08 curt
- * Beginning to integrate Tile management subsystem.
- *
- * Revision 1.28 1998/01/07 03:18:58 curt
- * Moved astronomical stuff from .../Src/Scenery to .../Src/Astro/
- *
- * Revision 1.27 1998/01/05 18:44:35 curt
- * Add an option to advance/decrease time from keyboard.
- *
- * Revision 1.26 1997/12/30 23:09:04 curt
- * Tweaking initialization sequences.
- *
- * Revision 1.25 1997/12/30 22:22:33 curt
- * Further integration of event manager.
- *
- * Revision 1.24 1997/12/30 20:47:44 curt
- * Integrated new event manager with subsystem initializations.
- *
- * Revision 1.23 1997/12/30 16:36:50 curt
- * Merged in Durk's changes ...
- *
- * Revision 1.22 1997/12/19 23:34:05 curt
- * Lot's of tweaking with sky rendering and lighting.
- *
- * Revision 1.21 1997/12/19 16:45:00 curt
- * Working on scene rendering order and options.
- *
- * Revision 1.20 1997/12/18 23:32:33 curt
- * First stab at sky dome actually starting to look reasonable. :-)
- *
- * Revision 1.19 1997/12/17 23:13:36 curt
- * Began working on rendering a sky.
- *
- * Revision 1.18 1997/12/15 23:54:49 curt
- * Add xgl wrappers for debugging.
- * Generate terrain normals on the fly.
- *
- * Revision 1.17 1997/12/15 20:59:09 curt
- * Misc. tweaks.
- *
- * Revision 1.16 1997/12/12 19:52:48 curt
- * Working on lightling and material properties.
- *
- * Revision 1.15 1997/12/11 04:43:55 curt
- * Fixed sun vector and lighting problems. I thing the moon is now lit
- * correctly.
- *
- * Revision 1.14 1997/12/10 22:37:47 curt
- * Prepended "fg" on the name of all global structures that didn't have it yet.
- * i.e. "struct WEATHER {}" became "struct fgWEATHER {}"
- *
- * Revision 1.13 1997/11/25 19:25:32 curt
- * Changes to integrate Durk's moon/sun code updates + clean up.
- *
- * Revision 1.12 1997/11/15 18:16:35 curt
- * minor tweaks.
- *
- * Revision 1.11 1997/10/30 12:38:42 curt
- * Working on new scenery subsystem.
- *
- * Revision 1.10 1997/10/25 03:24:23 curt
- * Incorporated sun, moon, and star positioning code contributed by Durk Talsma.
- *
- * Revision 1.9 1997/09/23 00:29:39 curt
- * Tweaks to get things to compile with gcc-win32.
- *
- * Revision 1.8 1997/09/22 14:44:20 curt
- * Continuing to try to align stars correctly.
- *
- * Revision 1.7 1997/09/16 15:50:30 curt
- * Working on star alignment and time issues.
- *
- * Revision 1.6 1997/09/05 14:17:30 curt
- * More tweaking with stars.
- *
- * Revision 1.5 1997/09/04 02:17:36 curt
- * Shufflin' stuff.
- *
- * Revision 1.4 1997/08/27 21:32:26 curt
- * Restructured view calculation code. Added stars.
- *
- * Revision 1.3 1997/08/27 03:30:19 curt
- * Changed naming scheme of basic shared structures.
- *
- * Revision 1.2 1997/08/25 20:27:23 curt
- * Merged in initial HUD and Joystick code.
- *
- * Revision 1.1 1997/08/23 01:46:20 curt
- * Initial revision.
- *
- */
+// $Log$
+// Revision 1.55 1998/12/05 15:54:20 curt
+// Renamed class fgFLIGHT to class FGState as per request by JSB.
+//
+// Revision 1.54 1998/12/05 14:19:53 curt
+// Looking into a problem with cur_view_params.abs_view_pos initialization.
+//
+// Revision 1.53 1998/12/03 04:25:05 curt
+// Working on fixing up new fgFLIGHT class.
+//
+// Revision 1.52 1998/12/03 01:17:17 curt
+// Converted fgFLIGHT to a class.
+//
+// Revision 1.51 1998/11/20 01:02:37 curt
+// Try to detect Mesa/Glide/Voodoo and chose the appropriate resolution.
+//
+// Revision 1.50 1998/11/16 14:00:01 curt
+// Added pow() macro bug work around.
+// Added support for starting FGFS at various resolutions.
+// Added some initial serial port support.
+// Specify default log levels in main().
+//
+// Revision 1.49 1998/11/11 00:24:02 curt
+// Added Michael Johnson's audio patches for testing.
+// Also did a few tweaks to avoid numerical problems when starting at a place
+// with no (or bogus) scenery.
+//
+// Revision 1.48 1998/11/07 19:07:10 curt
+// Enable release builds using the --without-logging option to the configure
+// script. Also a couple log message cleanups, plus some C to C++ comment
+// conversion.
+//
+// Revision 1.47 1998/11/06 21:18:10 curt
+// Converted to new logstream debugging facility. This allows release
+// builds with no messages at all (and no performance impact) by using
+// the -DFG_NDEBUG flag.
+//
+// Revision 1.46 1998/10/27 02:14:38 curt
+// Changes to support GLUT joystick routines as fall back.
+//
+// Revision 1.45 1998/10/25 10:57:21 curt
+// Changes to use the new joystick library if it is available.
+//
+// Revision 1.44 1998/10/18 01:17:17 curt
+// Point3D tweaks.
+//
+// Revision 1.43 1998/10/17 01:34:22 curt
+// C++ ifying ...
+//
+// Revision 1.42 1998/10/16 23:27:54 curt
+// C++-ifying.
+//
+// Revision 1.41 1998/10/16 00:54:01 curt
+// Converted to Point3D class.
+//
+// Revision 1.40 1998/10/02 12:46:49 curt
+// Added an "auto throttle"
+//
+// Revision 1.39 1998/09/29 02:03:39 curt
+// Autopilot mods.
+//
+// Revision 1.38 1998/09/15 04:27:30 curt
+// Changes for new Astro code.
+//
+// Revision 1.37 1998/09/15 02:09:26 curt
+// Include/fg_callback.hxx
+// Moved code inline to stop g++ 2.7 from complaining.
+//
+// Simulator/Time/event.[ch]xx
+// Changed return type of fgEVENT::printStat(). void caused g++ 2.7 to
+// complain bitterly.
+//
+// Minor bugfix and changes.
+//
+// Simulator/Main/GLUTmain.cxx
+// Added missing type to idle_state definition - eliminates a warning.
+//
+// Simulator/Main/fg_init.cxx
+// Changes to airport lookup.
+//
+// Simulator/Main/options.cxx
+// Uses fg_gzifstream when loading config file.
+//
+// Revision 1.36 1998/09/08 21:40:08 curt
+// Fixes by Charlie Hotchkiss.
+//
+// Revision 1.35 1998/08/29 13:09:26 curt
+// Changes to event manager from Bernie Bright.
+//
+// Revision 1.34 1998/08/27 17:02:06 curt
+// Contributions from Bernie Bright <bbright@c031.aone.net.au>
+// - use strings for fg_root and airport_id and added methods to return
+// them as strings,
+// - inlined all access methods,
+// - made the parsing functions private methods,
+// - deleted some unused functions.
+// - propogated some of these changes out a bit further.
+//
+// Revision 1.33 1998/08/25 20:53:32 curt
+// Shuffled $FG_ROOT file layout.
+//
+// Revision 1.32 1998/08/25 16:59:09 curt
+// Directory reshuffling.
+//
+// Revision 1.31 1998/08/22 14:49:57 curt
+// Attempting to iron out seg faults and crashes.
+// Did some shuffling to fix a initialization order problem between view
+// position, scenery elevation.
+//
+// Revision 1.30 1998/08/20 20:32:33 curt
+// Reshuffled some of the code in and around views.[ch]xx
+//
+// Revision 1.29 1998/07/30 23:48:27 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 1.28 1998/07/27 18:41:25 curt
+// Added a pause command "p"
+// Fixed some initialization order problems between pui and glut.
+// Added an --enable/disable-sound option.
+//
+// Revision 1.27 1998/07/24 21:39:10 curt
+// Debugging output tweaks.
+// Cast glGetString to (char *) to avoid compiler errors.
+// Optimizations to fgGluLookAt() by Norman Vine.
+//
+// Revision 1.26 1998/07/22 21:40:44 curt
+// Clear to adjusted fog color (for sunrise/sunset effects)
+// Make call to fog sunrise/sunset adjustment method.
+// Add a stdc++ library bug work around to fg_init.cxx
+//
+// Revision 1.25 1998/07/13 21:01:38 curt
+// Wrote access functions for current fgOPTIONS.
+//
+// Revision 1.24 1998/07/13 15:32:39 curt
+// Clear color buffer if drawing wireframe.
+// When specifying and airport, start elevation at -1000 and let the system
+// position you at ground level.
+//
+// Revision 1.23 1998/07/12 03:14:43 curt
+// Added ground collision detection.
+// Did some serious horsing around to be able to "hug" the ground properly
+// and still be able to take off.
+// Set the near clip plane to 1.0 meters when less than 10 meters above the
+// ground.
+// Did some serious horsing around getting the initial airplane position to be
+// correct based on rendered terrain elevation.
+// Added a little cheat/hack that will prevent the view position from ever
+// dropping below the terrain, even when the flight model doesn't quite
+// put you as high as you'd like.
+//
+// Revision 1.22 1998/07/04 00:52:25 curt
+// Add my own version of gluLookAt() (which is nearly identical to the
+// Mesa/glu version.) But, by calculating the Model View matrix our selves
+// we can save this matrix without having to read it back in from the video
+// card. This hopefully allows us to save a few cpu cycles when rendering
+// out the fragments because we can just use glLoadMatrixd() with the
+// precalculated matrix for each tile rather than doing a push(), translate(),
+// pop() for every fragment.
+//
+// Panel status defaults to off for now until it gets a bit more developed.
+//
+// Extract OpenGL driver info on initialization.
+//
+// Revision 1.21 1998/06/27 16:54:33 curt
+// Replaced "extern displayInstruments" with a entry in fgOPTIONS.
+// Don't change the view port when displaying the panel.
+//
+// Revision 1.20 1998/06/17 21:35:12 curt
+// Refined conditional audio support compilation.
+// Moved texture parameter setup calls to ../Scenery/materials.cxx
+// #include <string.h> before various STL includes.
+// Make HUD default state be enabled.
+//
+// Revision 1.19 1998/06/08 17:57:05 curt
+// Minor sound/startup position tweaks.
+//
+// Revision 1.18 1998/06/03 00:47:14 curt
+// Updated to compile in audio support if OSS available.
+// Updated for new version of Steve's audio library.
+// STL includes don't use .h
+// Small view optimizations.
+//
+// Revision 1.17 1998/06/01 17:54:42 curt
+// Added Linux audio support.
+// avoid glClear( COLOR_BUFFER_BIT ) when not using it to set the sky color.
+// map stl tweaks.
+//
+// Revision 1.16 1998/05/29 20:37:24 curt
+// Tweaked material properties & lighting a bit in GLUTmain.cxx.
+// Read airport list into a "map" STL for dynamic list sizing and fast tree
+// based lookups.
+//
+// Revision 1.15 1998/05/22 21:28:53 curt
+// Modifications to use the new fgEVENT_MGR class.
+//
+// Revision 1.14 1998/05/20 20:51:35 curt
+// Tweaked smooth shaded texture lighting properties.
+// Converted fgLIGHT to a C++ class.
+//
+// Revision 1.13 1998/05/16 13:08:35 curt
+// C++ - ified views.[ch]xx
+// Shuffled some additional view parameters into the fgVIEW class.
+// Changed tile-radius to tile-diameter because it is a much better
+// name.
+// Added a WORLD_TO_EYE transformation to views.cxx. This allows us
+// to transform world space to eye space for view frustum culling.
+//
+// Revision 1.12 1998/05/13 18:29:58 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 1.11 1998/05/07 23:14:15 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 1.10 1998/05/06 03:16:24 curt
+// Added an averaged global frame rate counter.
+// Added an option to control tile radius.
+//
+// Revision 1.9 1998/05/03 00:47:31 curt
+// Added an option to enable/disable full-screen mode.
+//
+// Revision 1.8 1998/04/30 12:34:18 curt
+// Added command line rendering options:
+// enable/disable fog/haze
+// specify smooth/flat shading
+// disable sky blending and just use a solid color
+// enable wireframe drawing mode
+//
+// Revision 1.7 1998/04/28 01:20:22 curt
+// Type-ified fgTIME and fgVIEW.
+// Added a command line option to disable textures.
+//
+// Revision 1.6 1998/04/26 05:10:03 curt
+// "struct fgLIGHT" -> "fgLIGHT" because fgLIGHT is typedef'd.
+//
+// Revision 1.5 1998/04/25 22:06:30 curt
+// Edited cvs log messages in source files ... bad bad bad!
+//
+// Revision 1.4 1998/04/25 20:24:01 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 1998/04/25 15:11:11 curt
+// Added an command line option to set starting position based on airport ID.
+//
+// Revision 1.2 1998/04/24 00:49:20 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 13:25:44 curt
+// C++ - ifing the code.
+// Starting a bit of reorganization of lighting code.
+//
+// Revision 1.56 1998/04/18 04:11:28 curt
+// Moved fg_debug to it's own library, added zlib support.
+//
+// Revision 1.55 1998/04/14 02:21:03 curt
+// Incorporated autopilot heading hold contributed by: Jeff Goeke-Smith
+// <jgoeke@voyager.net>
+//
+// Revision 1.54 1998/04/08 23:35:36 curt
+// Tweaks to Gnu automake/autoconf system.
+//
+// Revision 1.53 1998/04/03 22:09:06 curt
+// Converting to Gnu autoconf system.
+//
+// Revision 1.52 1998/03/23 21:24:38 curt
+// Source code formating tweaks.
+//
+// Revision 1.51 1998/03/14 00:31:22 curt
+// Beginning initial terrain texturing experiments.
+//
+// Revision 1.50 1998/03/09 22:46:19 curt
+// Minor tweaks.
+//
+// Revision 1.49 1998/02/23 19:07:59 curt
+// Incorporated Durk's Astro/ tweaks. Includes unifying the sun position
+// calculation code between sun display, and other FG sections that use this
+// for things like lighting.
+//
+// Revision 1.48 1998/02/21 14:53:15 curt
+// Added Charlie's HUD changes.
+//
+// Revision 1.47 1998/02/19 13:05:53 curt
+// Incorporated some HUD tweaks from Michelle America.
+// Tweaked the sky's sunset/rise colors.
+// Other misc. tweaks.
+//
+// Revision 1.46 1998/02/18 15:07:06 curt
+// Tweaks to build with SGI OpenGL (and therefor hopefully other accelerated
+// drivers will work.)
+//
+// Revision 1.45 1998/02/16 13:39:43 curt
+// Miscellaneous weekend tweaks. Fixed? a cache problem that caused whole
+// tiles to occasionally be missing.
+//
+// Revision 1.44 1998/02/12 21:59:50 curt
+// Incorporated code changes contributed by Charlie Hotchkiss
+// <chotchkiss@namg.us.anritsu.com>
+//
+// Revision 1.43 1998/02/11 02:50:40 curt
+// Minor changes.
+//
+// Revision 1.42 1998/02/09 22:56:58 curt
+// Removed "depend" files from cvs control. Other minor make tweaks.
+//
+// Revision 1.41 1998/02/09 15:07:50 curt
+// Minor tweaks.
+//
+// Revision 1.40 1998/02/07 15:29:44 curt
+// Incorporated HUD changes and struct/typedef changes from Charlie Hotchkiss
+// <chotchkiss@namg.us.anritsu.com>
+//
+// Revision 1.39 1998/02/03 23:20:25 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 1.38 1998/02/02 20:53:58 curt
+// Incorporated Durk's changes.
+//
+// Revision 1.37 1998/02/01 03:39:54 curt
+// Minor tweaks.
+//
+// Revision 1.36 1998/01/31 00:43:13 curt
+// Added MetroWorks patches from Carmen Volpe.
+//
+// Revision 1.35 1998/01/27 00:47:57 curt
+// Incorporated Paul Bleisch's <pbleisch@acm.org> new debug message
+// system and commandline/config file processing code.
+//
+// Revision 1.34 1998/01/22 02:59:37 curt
+// Changed #ifdef FILE_H to #ifdef _FILE_H
+//
+// Revision 1.33 1998/01/21 21:11:34 curt
+// Misc. tweaks.
+//
+// Revision 1.32 1998/01/19 19:27:08 curt
+// Merged in make system changes from Bob Kuehne <rpk@sgi.com>
+// This should simplify things tremendously.
+//
+// Revision 1.31 1998/01/19 18:40:32 curt
+// Tons of little changes to clean up the code and to remove fatal errors
+// when building with the c++ compiler.
+//
+// Revision 1.30 1998/01/13 00:23:09 curt
+// Initial changes to support loading and management of scenery tiles. Note,
+// there's still a fair amount of work left to be done.
+//
+// Revision 1.29 1998/01/08 02:22:08 curt
+// Beginning to integrate Tile management subsystem.
+//
+// Revision 1.28 1998/01/07 03:18:58 curt
+// Moved astronomical stuff from .../Src/Scenery to .../Src/Astro/
+//
+// Revision 1.27 1998/01/05 18:44:35 curt
+// Add an option to advance/decrease time from keyboard.
+//
+// Revision 1.26 1997/12/30 23:09:04 curt
+// Tweaking initialization sequences.
+//
+// Revision 1.25 1997/12/30 22:22:33 curt
+// Further integration of event manager.
+//
+// Revision 1.24 1997/12/30 20:47:44 curt
+// Integrated new event manager with subsystem initializations.
+//
+// Revision 1.23 1997/12/30 16:36:50 curt
+// Merged in Durk's changes ...
+//
+// Revision 1.22 1997/12/19 23:34:05 curt
+// Lot's of tweaking with sky rendering and lighting.
+//
+// Revision 1.21 1997/12/19 16:45:00 curt
+// Working on scene rendering order and options.
+//
+// Revision 1.20 1997/12/18 23:32:33 curt
+// First stab at sky dome actually starting to look reasonable. :-)
+//
+// Revision 1.19 1997/12/17 23:13:36 curt
+// Began working on rendering a sky.
+//
+// Revision 1.18 1997/12/15 23:54:49 curt
+// Add xgl wrappers for debugging.
+// Generate terrain normals on the fly.
+//
+// Revision 1.17 1997/12/15 20:59:09 curt
+// Misc. tweaks.
+//
+// Revision 1.16 1997/12/12 19:52:48 curt
+// Working on lightling and material properties.
+//
+// Revision 1.15 1997/12/11 04:43:55 curt
+// Fixed sun vector and lighting problems. I thing the moon is now lit
+// correctly.
+//
+// Revision 1.14 1997/12/10 22:37:47 curt
+// Prepended "fg" on the name of all global structures that didn't have it yet.
+// i.e. "struct WEATHER {}" became "struct fgWEATHER {}"
+//
+// Revision 1.13 1997/11/25 19:25:32 curt
+// Changes to integrate Durk's moon/sun code updates + clean up.
+//
+// Revision 1.12 1997/11/15 18:16:35 curt
+// minor tweaks.
+//
+// Revision 1.11 1997/10/30 12:38:42 curt
+// Working on new scenery subsystem.
+//
+// Revision 1.10 1997/10/25 03:24:23 curt
+// Incorporated sun, moon, and star positioning code contributed by Durk Talsma.
+//
+// Revision 1.9 1997/09/23 00:29:39 curt
+// Tweaks to get things to compile with gcc-win32.
+//
+// Revision 1.8 1997/09/22 14:44:20 curt
+// Continuing to try to align stars correctly.
+//
+// Revision 1.7 1997/09/16 15:50:30 curt
+// Working on star alignment and time issues.
+//
+// Revision 1.6 1997/09/05 14:17:30 curt
+// More tweaking with stars.
+//
+// Revision 1.5 1997/09/04 02:17:36 curt
+// Shufflin' stuff.
+//
+// Revision 1.4 1997/08/27 21:32:26 curt
+// Restructured view calculation code. Added stars.
+//
+// Revision 1.3 1997/08/27 03:30:19 curt
+// Changed naming scheme of basic shared structures.
+//
+// Revision 1.2 1997/08/25 20:27:23 curt
+// Merged in initial HUD and Joystick code.
+//
+// Revision 1.1 1997/08/23 01:46:20 curt
+// Initial revision.
+//
+