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flightgear/Main/fg_init.cxx
curt 920eefd4a7 C++ - ifing the code. 
Starting a bit of reorganization of lighting code.
1998-04-22 13:25:39 +00:00

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/* -*- 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)
**************************************************************************/
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <Include/cmdargs.h>
#include <Include/fg_constants.h>
#include <Include/general.h>
#include <Aircraft/aircraft.h>
#include <Astro/moon.hxx>
#include <Astro/planets.hxx>
#include <Astro/sky.hxx>
#include <Astro/stars.hxx>
#include <Astro/sun.hxx>
#include <Autopilot/autopilot.h>
#include <Cockpit/cockpit.h>
#include <Debug/fg_debug.h>
#include <Joystick/joystick.h>
#include <Math/fg_random.h>
#include <Scenery/scenery.h>
#include <Scenery/tilemgr.hxx>
#include <Time/event.h>
#include <Time/fg_time.h>
#include <Time/light.hxx>
#include <Time/sunpos.hxx>
#include <Weather/weather.h>
#include "fg_init.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;
fgInitDebug();
fgPrintf( FG_GENERAL, FG_INFO, "General Initialization\n" );
fgPrintf( FG_GENERAL, FG_INFO, "======= ==============\n" );
/* seed the random number generater */
fg_srandom();
// determine the fg root path. The command line parser getargs() will
// fill in a root directory if the option was used.
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.
g->root_dir = (char *)DefaultRootDir;
}
}
fgPrintf( FG_GENERAL, FG_INFO, "FG_ROOT = %s\n\n", g->root_dir);
// Dummy value can be changed if future initializations
// fail a critical task.
return ( 0 /* FALSE */ );
}
// This is the top level init routine which calls all the other
// 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;
// Ok will be flagged only if we get EVERYTHING done.
int ret_val = 1 /* TRUE */;
fgFLIGHT *f;
struct fgLIGHT *l;
struct fgTIME *t;
struct fgVIEW *v;
l = &cur_light_params;
t = &cur_time_params;
v = &current_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.
****************************************************************/
// 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);
// 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 */;
// Initial Orientation
FG_Phi = -2.658474E-06;
FG_Theta = 7.401790E-03;
FG_Psi = 270.0 * 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;
FG_Earth_position_angle = 0.000000E+00;
// 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;
// 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);
// Initialize the event manager
fgEventInit();
// Dump event stats every 60 seconds
fgEventRegister( "fgEventPrintStats()", fgEventPrintStats,
FG_EVENT_READY, 60000 );
// Initialize "time"
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( &current_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);
// Initialize the Stars subsystem
if( fgStarsInit() ) {
// Stars initialized ok.
} else {
fgPrintf( FG_GENERAL, FG_EXIT, "Error in Stars initialization!\n" );
}
// Initialize the planetary subsystem
fgEventRegister("fgPlanetsInit()", fgPlanetsInit, FG_EVENT_READY, 600000);
// Initialize the sun's position
fgEventRegister("fgSunInit()", fgSunInit, FG_EVENT_READY, 30000 );
// Intialize the moon's position
fgEventRegister( "fgMoonInit()", fgMoonInit, 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" );
}
if( fgTileMgrInit() ) {
// Load the local scenery data
fgTileMgrUpdate();
} else {
fgPrintf( FG_GENERAL, FG_EXIT,
"Error in Tile Manager initialization!\n" );
}
// 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;
}
if ( FG_Altitude < FG_Runway_altitude ) {
FG_Altitude = FG_Runway_altitude + 3.758099;
}
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);
// 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 );
// To HUD or not to HUD - Now a command line issue
// show_hud = 0;
// Let's not show the instrument panel
displayInstruments = 0;
// Joystick support
if (fgJoystickInit(0) ) {
// Joystick initialized ok.
} else {
fgPrintf( FG_GENERAL, FG_EXIT, "Error in Joystick initialization!\n" );
}
// Autopilot init added here, by Jeff Goeke-Smith
fgAPInit(&current_aircraft);
// end added section;
// One more try here to get the sky synced up
fgSkyColorsInit();
ret_val = 0;
fgPrintf(FG_GENERAL, FG_INFO,"\n");
return ret_val;
}
/* $Log$
/* 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.
*
*/
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