164 lines
5 KiB
C++
164 lines
5 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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// (Log is kept at end of this file)
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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 <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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// $Log$
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// Revision 1.6 1998/10/16 23:27:59 curt
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// C++-ifying.
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//
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// Revision 1.5 1998/10/16 00:55:44 curt
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// Converted to Point3D class.
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//
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// Revision 1.4 1998/07/12 03:18:28 curt
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// Added ground collision detection. This involved:
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// - saving the entire vertex list for each tile with the tile records.
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// - saving the face list for each fragment with the fragment records.
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// - code to intersect the current vertical line with the proper face in
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// an efficient manner as possible.
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// Fixed a bug where the tiles weren't being shifted to "near" (0,0,0)
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//
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// Revision 1.3 1998/07/08 14:47:22 curt
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// Fix GL_MODULATE vs. GL_DECAL problem introduced by splash screen.
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// polare3d.h renamed to polar3d.hxx
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// fg{Cartesian,Polar}Point3d consolodated.
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// Added some initial support for calculating local current ground elevation.
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//
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// Revision 1.2 1998/05/02 01:52:16 curt
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// Playing around with texture coordinates.
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//
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// Revision 1.1 1998/04/30 12:35:31 curt
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// Added a command line rendering option specify smooth/flat shading.
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//
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// Revision 1.21 1998/04/25 22:06:31 curt
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// Edited cvs log messages in source files ... bad bad bad!
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//
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// Revision 1.20 1998/04/22 13:22:45 curt
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// C++ - ifing the code a bit.
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//
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// Revision 1.19 1998/04/21 17:02:43 curt
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// Prepairing for C++ integration.
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//
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// Revision 1.18 1998/03/14 00:30:51 curt
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// Beginning initial terrain texturing experiments.
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//
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// Revision 1.17 1998/02/20 00:16:24 curt
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// Thursday's tweaks.
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//
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// Revision 1.16 1998/01/27 00:48:03 curt
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// Incorporated Paul Bleisch's <pbleisch@acm.org> new debug message
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// system and commandline/config file processing code.
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//
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// Revision 1.15 1998/01/22 02:59:41 curt
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// Changed #ifdef FILE_H to #ifdef _FILE_H
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//
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// Revision 1.14 1998/01/19 19:27:17 curt
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// Merged in make system changes from Bob Kuehne <rpk@sgi.com>
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// This should simplify things tremendously.
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//
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// Revision 1.13 1998/01/19 18:40:38 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 1.12 1997/12/15 23:55:03 curt
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// Add xgl wrappers for debugging.
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// Generate terrain normals on the fly.
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//
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// Revision 1.11 1997/12/10 22:37:52 curt
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// Prepended "fg" on the name of all global structures that didn't have it yet.
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// i.e. "struct WEATHER {}" became "struct fgWEATHER {}"
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//
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// Revision 1.10 1997/09/04 02:17:37 curt
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// Shufflin' stuff.
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//
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// Revision 1.9 1997/08/27 03:30:33 curt
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// Changed naming scheme of basic shared structures.
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//
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// Revision 1.8 1997/08/06 00:24:30 curt
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// Working on correct real time sun lighting.
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//
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// Revision 1.7 1997/07/23 21:52:27 curt
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// Put comments around the text after an #endif for increased portability.
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//
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// Revision 1.6 1997/07/11 01:30:03 curt
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// More tweaking of terrian floor.
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//
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// Revision 1.5 1997/06/26 22:14:57 curt
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// Beginning work on a scenery management system.
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//
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// Revision 1.4 1997/06/21 17:57:21 curt
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// directory shuffling ...
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//
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// Revision 1.2 1997/05/23 15:40:43 curt
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// Added GNU copyright headers.
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//
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// Revision 1.1 1997/05/16 16:07:07 curt
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// Initial revision.
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//
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