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flightgear/src/Environment/environment_mgr.hxx

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// environment-mgr.hxx -- manager for natural environment information.
//
// Written by David Megginson, started February 2002.
//
// Copyright (C) 2002 David Megginson - david@megginson.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.
//
// $Id$
#ifndef _ENVIRONMENT_MGR_HXX
#define _ENVIRONMENT_MGR_HXX
#include <simgear/compiler.h>
#include <simgear/structure/subsystem_mgr.hxx>
#ifdef SG_HAVE_STD_INCLUDES
# include <cmath>
#else
# include <math.h>
#endif
class FGEnvironment;
class FGEnvironmentCtrl;
class FGClouds;
/**
* Manage environment information.
*/
class FGEnvironmentMgr : public SGSubsystemGroup
{
public:
enum {
MAX_CLOUD_LAYERS = 5
};
FGEnvironmentMgr ();
virtual ~FGEnvironmentMgr ();
virtual void init ();
virtual void reinit ();
virtual void bind ();
virtual void unbind ();
virtual void update (double dt);
/**
* Get the environment information for the plane's current position.
*/
virtual FGEnvironment getEnvironment () const;
/**
* Get the environment information for another location.
*/
virtual FGEnvironment getEnvironment (double lat, double lon,
double alt) const;
private:
void _update_fdm () const;
double get_cloud_layer_span_m (int index) const;
void set_cloud_layer_span_m (int index, double span_m);
double get_cloud_layer_elevation_ft (int index) const;
void set_cloud_layer_elevation_ft (int index, double elevation_ft);
double get_cloud_layer_thickness_ft (int index) const;
void set_cloud_layer_thickness_ft (int index, double thickness_ft);
double get_cloud_layer_transition_ft (int index) const;
void set_cloud_layer_transition_ft (int index, double transition_ft);
const char * get_cloud_layer_coverage (int index) const;
void set_cloud_layer_coverage (int index, const char * coverage);
FGEnvironment * _environment; // always the same, for now
FGEnvironmentCtrl * _controller; // always the same, for now
FGClouds *fgClouds;
};
#endif // _ENVIRONMENT_MGR_HXX