simgear/Astro/stars.hxx

99 lines
3.0 KiB
C++

/**************************************************************************
* stars.hxx -- data structures and routines for managing and rendering stars.
*
* 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)
**************************************************************************/
#ifndef _STARS_HXX
#define _STARS_HXX
#ifndef __cplusplus
# error This library requires C++
#endif
#define FG_STAR_LEVELS 8 /* how many star transitions */
/* Initialize the Star Management Subsystem */
int fgStarsInit( void );
/* Draw the Stars */
void fgStarsRender( void );
extern struct OrbElements pltOrbElements[9];
extern fgTIME cur_time_params;
#endif /* _STARS_HXX */
/* $Log$
/* Revision 1.3 1998/08/06 12:45:20 curt
/* Modified to bring in stars in 8 increments based on magnitude, not number
/* of stars.
/*
* Revision 1.2 1998/04/28 01:19:03 curt
* Type-ified fgTIME and fgVIEW
*
* Revision 1.1 1998/04/22 13:21:35 curt
* C++ - ifing the code a bit.
*
* Revision 1.5 1998/04/21 17:02:33 curt
* Prepairing for C++ integration.
*
* Revision 1.4 1998/02/12 21:59:39 curt
* Incorporated code changes contributed by Charlie Hotchkiss
* <chotchkiss@namg.us.anritsu.com>
*
* Revision 1.3 1998/01/22 02:59:28 curt
* Changed #ifdef FILE_H to #ifdef _FILE_H
*
* Revision 1.2 1998/01/19 18:40:18 curt
* Tons of little changes to clean up the code and to remove fatal errors
* when building with the c++ compiler.
*
* Revision 1.1 1998/01/07 03:16:20 curt
* Moved from .../Src/Scenery/ to .../Src/Astro/
*
* Revision 1.6 1997/10/25 03:18:29 curt
* Incorporated sun, moon, and planet position and rendering code contributed
* by Durk Talsma.
*
* Revision 1.5 1997/09/18 16:20:09 curt
* At dusk/dawn add/remove stars in stages.
*
* Revision 1.4 1997/09/05 01:36:00 curt
* Working on getting stars right.
*
* Revision 1.3 1997/08/29 17:55:28 curt
* Worked on properly aligning the stars.
*
* Revision 1.2 1997/08/27 21:32:30 curt
* Restructured view calculation code. Added stars.
*
* Revision 1.1 1997/08/27 03:34:50 curt
* Initial revision.
*
*/