59 lines
1.8 KiB
C++
59 lines
1.8 KiB
C++
// tilemgr.hxx -- routines to handle dynamic management of scenery tiles
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//
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// Written by Curtis Olson, started January 1998.
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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 _TILEMGR_HXX
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#define _TILEMGR_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 <Bucket/newbucket.hxx>
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// Initialize the Tile Manager subsystem
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int fgTileMgrInit( void );
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// given the current lon/lat, fill in the array of local chunks. If
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// the chunk isn't already in the cache, then read it from disk.
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int fgTileMgrUpdate( void );
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// Determine scenery altitude. Normally this just happens when we
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// render the scene, but we'd also like to be able to do this
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// explicitely. lat & lon are in radians. abs_view_pos in meters.
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// Returns result in meters.
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double fgTileMgrCurElevNEW( const FGBucket& p );
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double fgTileMgrCurElev( double lon, double lat, const Point3D& abs_view_pos );
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// Render the local tiles --- hack, hack, hack
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void fgTileMgrRender( void );
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#endif // _TILEMGR_HXX
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