74 lines
2.5 KiB
C++
74 lines
2.5 KiB
C++
// userdata.hxx -- two classes for populating ssg user data slots in association
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// with our implimenation of random surface objects.
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//
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// Written by David Megginson, started December 2001.
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//
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// Copyright (C) 2001 - 2003 Curtis L. Olson - http://www.flightgear.org/~curt
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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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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//
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// $Id$
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#ifdef HAVE_CONFIG_H
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# include <simgear_config.h>
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#endif
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#include <osgDB/Registry>
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#include <simgear/sg_inlines.h>
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#include <simgear/math/point3d.hxx>
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#include <simgear/math/sg_geodesy.hxx>
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#include <simgear/math/sg_random.h>
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#include <simgear/scene/material/mat.hxx>
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#include <simgear/scene/material/matmodel.hxx>
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#include "SGModelBin.hxx"
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#include "userdata.hxx"
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#include "SGReaderWriterBTG.hxx"
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// the following are static values needed by the runtime object
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// loader. However, the loading is done via a call back so these
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// values cannot be passed as parameters. The calling application
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// needs to call sgUserDataInit() with the appropriate values before
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// building / drawing any scenery.
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static bool _inited = false;
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static SGPropertyNode *root_props = NULL;
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// Because BTG files are now loaded through the osgDB::Registry, there
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// are no symbols referenced by FlightGear in this library other than
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// sgUserDataInit. But the libraries are all statically linked, so
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// none of the other object files in this library would be included in
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// the executable! Sticking the static proxy here forces the BTG code
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// to be sucked in.
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osgDB::RegisterReaderWriterProxy<SGReaderWriterBTG> g_readerWriter_BTG_Proxy;
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void sgUserDataInit( SGPropertyNode *p ) {
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_inited = true;
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root_props = p;
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}
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osg::Node* sgGetRandomModel(SGMatModel *obj) {
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return obj->get_random_model( root_props );
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}
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namespace simgear
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{
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SGPropertyNode* getPropertyRoot()
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{
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return root_props;
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}
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}
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