81 lines
2.5 KiB
C
81 lines
2.5 KiB
C
/**************************************************************************
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* stars.h -- data structures and routines for managing and rendering stars.
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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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#ifndef _STARS_H
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#define _STARS_H
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#define FG_MAX_STARS 500
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#define FG_STAR_LEVELS 4 /* how many star transitions */
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#define FG_MIN_STAR_MAG 0.738750 /* magnitude of weakest star we'll display */
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/* Initialize the Star Management Subsystem */
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int fgStarsInit( void );
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/* Draw the Stars */
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void fgStarsRender( void );
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extern struct OrbElements pltOrbElements[9];
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extern struct fgTIME cur_time_params;
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#endif /* _STARS_H */
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/* $Log$
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/* Revision 1.4 1998/02/12 21:59:39 curt
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/* Incorporated code changes contributed by Charlie Hotchkiss
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/* <chotchkiss@namg.us.anritsu.com>
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/*
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* Revision 1.3 1998/01/22 02:59:28 curt
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* Changed #ifdef FILE_H to #ifdef _FILE_H
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*
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* Revision 1.2 1998/01/19 18:40:18 curt
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* Tons of little changes to clean up the code and to remove fatal errors
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* when building with the c++ compiler.
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*
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* Revision 1.1 1998/01/07 03:16:20 curt
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* Moved from .../Src/Scenery/ to .../Src/Astro/
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*
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* Revision 1.6 1997/10/25 03:18:29 curt
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* Incorporated sun, moon, and planet position and rendering code contributed
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* by Durk Talsma.
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*
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* Revision 1.5 1997/09/18 16:20:09 curt
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* At dusk/dawn add/remove stars in stages.
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*
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* Revision 1.4 1997/09/05 01:36:00 curt
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* Working on getting stars right.
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*
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* Revision 1.3 1997/08/29 17:55:28 curt
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* Worked on properly aligning the stars.
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*
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* Revision 1.2 1997/08/27 21:32:30 curt
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* Restructured view calculation code. Added stars.
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*
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* Revision 1.1 1997/08/27 03:34:50 curt
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* Initial revision.
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*
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*/
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