70 lines
1.9 KiB
C++
70 lines
1.9 KiB
C++
// scenery.hxx -- data structures and routines for managing scenery.
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//
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// Written by Curtis Olson, started May 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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#ifndef _SCENERY_HXX
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#define _SCENERY_HXX
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#ifndef __cplusplus
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# error This library requires C++
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#endif
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#include <simgear/math/point3d.hxx>
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// Define a structure containing global scenery parameters
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struct fgSCENERY {
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// center of current scenery chunk
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Point3D center;
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// next center of current scenery chunk
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Point3D next_center;
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// angle of sun relative to current local horizontal
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double sun_angle;
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// elevation of terrain at our current lat/lon (based on the
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// actual drawn polygons)
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double cur_elev;
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};
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extern struct fgSCENERY scenery;
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// Initialize the Scenery Management system
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int fgSceneryInit( void );
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// Tell the scenery manager where we are so it can load the proper
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// data, and build the proper structures.
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void fgSceneryUpdate(double lon, double lat, double elev);
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// Render out the current scene
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void fgSceneryRender( void );
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#endif // _SCENERY_HXX
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