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flightgear/Main/views.h
1997-12-17 23:13:34 +00:00

73 lines
2.1 KiB
C

/**************************************************************************
* views.h -- data structures and routines for managing and view parameters.
*
* 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 VIEWS_H
#define VIEWS_H
#include "../Include/types.h"
#include "../Flight/flight.h"
#include "../Math/mat3.h"
/* Define a structure containing view information */
struct fgVIEW {
struct fgCartesianPoint view_pos;
struct fgCartesianPoint cur_zero_elev;
MAT3vec local_up, view_up, view_forward;
double view_offset, goal_view_offset;
};
extern struct fgVIEW current_view;
/* Initialize a view structure */
void fgViewInit(struct fgVIEW *v);
/* Update the view parameters */
void fgViewUpdate(struct fgFLIGHT *f, struct fgVIEW *v);
#endif /* VIEWS_H */
/* $Log$
/* Revision 1.4 1997/12/17 23:13:36 curt
/* Began working on rendering a sky.
/*
* Revision 1.3 1997/12/15 23:54:51 curt
* Add xgl wrappers for debugging.
* Generate terrain normals on the fly.
*
* Revision 1.2 1997/12/10 22:37:48 curt
* Prepended "fg" on the name of all global structures that didn't have it yet.
* i.e. "struct WEATHER {}" became "struct fgWEATHER {}"
*
* Revision 1.1 1997/08/27 21:31:18 curt
* Initial revision.
*
*/