362 lines
11 KiB
C
362 lines
11 KiB
C
/**************************************************************************
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* fg_init.c -- Flight Gear top level initialization routines
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*
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* Written by Curtis Olson, started August 1997.
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*
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* Copyright (C) 1997 Curtis L. Olson - curt@infoplane.com
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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* $Id$
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* (Log is kept at end of this file)
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**************************************************************************/
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#include <stdio.h>
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#include <stdlib.h>
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#include "fg_init.h"
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#include "views.h"
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#include "../Include/constants.h"
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#include "../Include/general.h"
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#include "../Aircraft/aircraft.h"
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#include "../Astro/moon.h"
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#include "../Astro/sky.h"
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#include "../Astro/stars.h"
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#include "../Astro/sun.h"
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#include "../Cockpit/cockpit.h"
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#include "../Joystick/joystick.h"
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#include "../Math/fg_random.h"
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#include "../Scenery/mesh.h"
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#include "../Scenery/scenery.h"
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#include "../Scenery/tilemgr.h"
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#include "../Time/event.h"
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#include "../Time/fg_time.h"
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#include "../Time/sunpos.h"
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#include "../Weather/weather.h"
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extern int show_hud; /* HUD state */
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extern int displayInstruments;
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/* General house keeping initializations */
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void fgInitGeneral( void ) {
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struct fgGENERAL *g;
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g = &general;
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printf("General Initialization\n");
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printf("======= ==============\n");
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/* seed the random number generater */
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fg_srandom();
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/* determine the fg root path */
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if ( (g->root_dir = getenv("FG_ROOT")) == NULL ) {
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/* environment variable not defined */
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printf("FG_ROOT needs to be defined! See the documentation.\n");
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exit(0);
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}
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printf("FG_ROOT = %s\n", g->root_dir);
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printf("\n");
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}
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/* This is the top level init routine which calls all the other
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* initialization routines. If you are adding a subsystem to flight
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* gear, its initialization call should located in this routine.*/
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void fgInitSubsystems( void ) {
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double cur_elev;
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struct fgFLIGHT *f;
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struct fgLIGHT *l;
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struct fgTIME *t;
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struct fgVIEW *v;
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f = ¤t_aircraft.flight;
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l = &cur_light_params;
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t = &cur_time_params;
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v = ¤t_view;
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printf("Initialize Subsystems\n");
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printf("========== ==========\n");
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/****************************************************************
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* The following section sets up the flight model EOM parameters and
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* should really be read in from one or more files.
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****************************************************************/
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/* Globe Aiport, AZ */
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FG_Runway_longitude = -398391.28;
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FG_Runway_latitude = 120070.41;
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FG_Runway_altitude = 3234.5;
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FG_Runway_heading = 102.0 * DEG_TO_RAD;
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/* Initial Position at GLOBE airport */
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FG_Longitude = ( -398391.28 / 3600.0 ) * DEG_TO_RAD;
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FG_Latitude = ( 120070.41 / 3600.0 ) * DEG_TO_RAD;
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FG_Altitude = FG_Runway_altitude + 3.758099;
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/* Initial Position north of the city of Globe */
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/* FG_Longitude = ( -398673.28 / 3600.0 ) * DEG_TO_RAD; */
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/* FG_Latitude = ( 120625.64 / 3600.0 ) * DEG_TO_RAD; */
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/* FG_Longitude = ( -397867.44 / 3600.0 ) * DEG_TO_RAD; */
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/* FG_Latitude = ( 119548.21 / 3600.0 ) * DEG_TO_RAD; */
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/* FG_Altitude = 0.0 + 3.758099; */
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/* Initial Position: 10125 Jewell St. NE */
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/* FG_Longitude = ( -93.15 ) * DEG_TO_RAD; */
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/* FG_Latitude = ( 45.15 ) * DEG_TO_RAD; */
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/* FG_Altitude = FG_Runway_altitude + 3.758099; */
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/* A random test position */
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/* FG_Longitude = ( 88128.00 / 3600.0 ) * DEG_TO_RAD; */
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/* FG_Latitude = ( 93312.00 / 3600.0 ) * DEG_TO_RAD; */
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FG_Runway_altitude = 4000.0;
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FG_Altitude = FG_Runway_altitude + 3.758099;
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printf("Initial position is: (%.4f, %.4f, %.2f)\n",
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FG_Longitude * RAD_TO_DEG, FG_Latitude * RAD_TO_DEG,
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FG_Altitude * FEET_TO_METER);
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/* Initial Velocity */
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FG_V_north = 0.0 /* 7.287719E+00 */;
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FG_V_east = 0.0 /* 1.521770E+03 */;
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FG_V_down = 0.0 /* -1.265722E-05 */;
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/* Initial Orientation */
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FG_Phi = -2.658474E-06;
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FG_Theta = 7.401790E-03;
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FG_Psi = 270.0 * DEG_TO_RAD;
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/* Initial Angular B rates */
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FG_P_body = 7.206685E-05;
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FG_Q_body = 0.000000E+00;
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FG_R_body = 9.492658E-05;
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FG_Earth_position_angle = 0.000000E+00;
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/* Mass properties and geometry values */
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FG_Mass = 8.547270E+01;
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FG_I_xx = 1.048000E+03;
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FG_I_yy = 3.000000E+03;
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FG_I_zz = 3.530000E+03;
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FG_I_xz = 0.000000E+00;
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/* CG position w.r.t. ref. point */
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FG_Dx_cg = 0.000000E+00;
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FG_Dy_cg = 0.000000E+00;
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FG_Dz_cg = 0.000000E+00;
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/* Set initial position and slew parameters */
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/* fgSlewInit(-398391.3, 120070.41, 244, 3.1415); */ /* GLOBE Airport */
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/* fgSlewInit(-335340,162540, 15, 4.38); */
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/* fgSlewInit(-398673.28,120625.64, 53, 4.38); */
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/* Initialize the event manager */
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fgEventInit();
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/* Dump event stats every 60 seconds */
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fgEventRegister( "fgEventPrintStats()", fgEventPrintStats,
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FG_EVENT_READY, 60000 );
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/* Initialize "time" */
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fgTimeInit(t);
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fgTimeUpdate(f, t);
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/* fgViewUpdate() needs the sun in the right place, while
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* fgUpdateSunPos() needs to know the view position. I'll get
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* around this interdependency for now by calling fgUpdateSunPos()
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* once, then moving on with normal initialization. */
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fgUpdateSunPos();
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/* Initialize view parameters */
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fgViewInit(v);
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fgViewUpdate(f, v, l);
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/* Initialize shared sun position and sun_vec */
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fgEventRegister( "fgUpdateSunPos()", fgUpdateSunPos, FG_EVENT_READY, 1000 );
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/* Initialize the weather modeling subsystem */
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fgWeatherInit();
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/* update the weather for our current position */
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fgEventRegister( "fgWeatherUpdate()", fgWeatherUpdate,
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FG_EVENT_READY, 120000 );
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/* Initialize the Cockpit subsystem */
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if( fgCockpitInit( current_aircraft ) == NULL ) {
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printf( "Error in Cockpit initialization!\n" );
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exit( 1 );
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}
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/* Initialize the orbital elements of sun, moon and mayor planets */
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fgSolarSystemInit(*t);
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/* Initialize the Stars subsystem */
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fgStarsInit();
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/* Initialize the sun's position */
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fgEventRegister( "fgSunInit()", fgSunInit, FG_EVENT_READY, 600000 );
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/* Intialize the moon's position */
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fgEventRegister( "fgMoonInit()", fgMoonInit, FG_EVENT_READY, 600000 );
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/* Initialize the "sky" */
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fgSkyInit();
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/* Initialize the Scenery Management subsystem */
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fgTileMgrInit();
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fgSceneryInit();
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/* Tell the Scenery Management system where we are so it can load
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* the correct scenery data */
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fgSceneryUpdate(FG_Latitude, FG_Longitude, FG_Altitude);
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/* I'm just sticking this here for now, it should probably move
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* eventually */
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cur_elev = mesh_altitude(FG_Longitude * RAD_TO_DEG * 3600.0,
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FG_Latitude * RAD_TO_DEG * 3600.0);
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printf("True ground elevation is %.2f meters here.\n", cur_elev);
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if ( cur_elev > -9990.0 ) {
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FG_Runway_altitude = cur_elev * METER_TO_FEET;
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}
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if ( FG_Altitude < FG_Runway_altitude ) {
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FG_Altitude = FG_Runway_altitude + 3.758099;
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}
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printf("Updated position (after elevation adj): (%.4f, %.4f, %.2f)\n",
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FG_Latitude * RAD_TO_DEG, FG_Longitude * RAD_TO_DEG,
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FG_Altitude * FEET_TO_METER);
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/* end of thing that I just stuck in that I should probably move */
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/* Initialize the flight model subsystem data structures base on
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* above values */
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fgFlightModelInit( FG_LARCSIM, f, 1.0 / DEFAULT_MODEL_HZ );
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/* To HUD or not to HUD */
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show_hud = 0;
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/* Let's show the instrument panel */
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displayInstruments = 0;
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/* Joystick support */
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fgJoystickInit( 0 );
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/* One more try here to get the sky synced up */
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fgSkyColorsInit();
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printf("\n");
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}
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/* $Log$
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/* Revision 1.29 1998/01/08 02:22:08 curt
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/* Beginning to integrate Tile management subsystem.
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/*
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* Revision 1.28 1998/01/07 03:18:58 curt
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* Moved astronomical stuff from .../Src/Scenery to .../Src/Astro/
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*
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* Revision 1.27 1998/01/05 18:44:35 curt
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* Add an option to advance/decrease time from keyboard.
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*
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* Revision 1.26 1997/12/30 23:09:04 curt
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* Tweaking initialization sequences.
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*
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* Revision 1.25 1997/12/30 22:22:33 curt
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* Further integration of event manager.
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*
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* Revision 1.24 1997/12/30 20:47:44 curt
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* Integrated new event manager with subsystem initializations.
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*
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* Revision 1.23 1997/12/30 16:36:50 curt
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* Merged in Durk's changes ...
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*
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* Revision 1.22 1997/12/19 23:34:05 curt
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* Lot's of tweaking with sky rendering and lighting.
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*
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* Revision 1.21 1997/12/19 16:45:00 curt
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* Working on scene rendering order and options.
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*
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* Revision 1.20 1997/12/18 23:32:33 curt
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* First stab at sky dome actually starting to look reasonable. :-)
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*
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* Revision 1.19 1997/12/17 23:13:36 curt
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* Began working on rendering a sky.
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*
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* Revision 1.18 1997/12/15 23:54:49 curt
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* Add xgl wrappers for debugging.
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* Generate terrain normals on the fly.
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*
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* Revision 1.17 1997/12/15 20:59:09 curt
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* Misc. tweaks.
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*
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* Revision 1.16 1997/12/12 19:52:48 curt
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* Working on lightling and material properties.
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*
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* Revision 1.15 1997/12/11 04:43:55 curt
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* Fixed sun vector and lighting problems. I thing the moon is now lit
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* correctly.
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*
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* Revision 1.14 1997/12/10 22:37:47 curt
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* Prepended "fg" on the name of all global structures that didn't have it yet.
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* i.e. "struct WEATHER {}" became "struct fgWEATHER {}"
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*
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* Revision 1.13 1997/11/25 19:25:32 curt
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* Changes to integrate Durk's moon/sun code updates + clean up.
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*
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* Revision 1.12 1997/11/15 18:16:35 curt
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* minor tweaks.
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*
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* Revision 1.11 1997/10/30 12:38:42 curt
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* Working on new scenery subsystem.
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*
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* Revision 1.10 1997/10/25 03:24:23 curt
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* Incorporated sun, moon, and star positioning code contributed by Durk Talsma.
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*
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* Revision 1.9 1997/09/23 00:29:39 curt
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* Tweaks to get things to compile with gcc-win32.
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*
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* Revision 1.8 1997/09/22 14:44:20 curt
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* Continuing to try to align stars correctly.
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*
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* Revision 1.7 1997/09/16 15:50:30 curt
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* Working on star alignment and time issues.
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*
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* Revision 1.6 1997/09/05 14:17:30 curt
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* More tweaking with stars.
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*
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* Revision 1.5 1997/09/04 02:17:36 curt
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* Shufflin' stuff.
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*
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* Revision 1.4 1997/08/27 21:32:26 curt
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* Restructured view calculation code. Added stars.
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*
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* Revision 1.3 1997/08/27 03:30:19 curt
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* Changed naming scheme of basic shared structures.
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*
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* Revision 1.2 1997/08/25 20:27:23 curt
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* Merged in initial HUD and Joystick code.
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*
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* Revision 1.1 1997/08/23 01:46:20 curt
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* Initial revision.
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*
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*/
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