101 lines
2.4 KiB
C++
101 lines
2.4 KiB
C++
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// environment-ctrl.hxx -- controller for environment information.
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//
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// Written by David Megginson, started May 2002.
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//
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// Copyright (C) 2002 David Megginson - david@megginson.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 _ENVIRONMENT_CTRL_HXX
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#define _ENVIRONMENT_CTRL_HXX
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#include <simgear/compiler.h>
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#ifdef SG_HAVE_STD_INCLUDES
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# include <cmath>
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#else
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# include <math.h>
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#endif
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class SGPropertyNode;
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#include "environment.hxx"
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/**
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* Interface to control environment information for a specific location.
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*/
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class FGEnvironmentCtrl
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{
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public:
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FGEnvironmentCtrl ();
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virtual ~FGEnvironmentCtrl ();
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virtual void setEnvironment (FGEnvironment * environment);
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virtual FGEnvironment * getEnvironment () const { return _environment; }
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virtual void setLongitudeDeg (double lon_deg);
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virtual void setLatitudeDeg (double lat_deg);
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virtual void setElevationFt (double elev_ft);
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virtual void setPosition (double lon_deg, double lat_deg, double elev_ft);
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virtual double getLongitudeDeg () const { return _lon_deg; }
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virtual double getLatitudeDeg () const { return _lat_deg; }
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virtual double getElevationFt () const { return _elev_ft; }
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virtual void init () = 0;
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virtual void update (int dt) = 0;
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protected:
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FGEnvironment * _environment;
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double _lon_deg;
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double _lat_deg;
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double _elev_ft;
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};
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/**
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* Environment controller using user-supplied parameters.
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*/
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class FGUserDefEnvironmentCtrl : public FGEnvironmentCtrl
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{
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public:
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FGUserDefEnvironmentCtrl ();
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virtual ~FGUserDefEnvironmentCtrl ();
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virtual void init ();
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virtual void update (int dt);
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private:
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SGPropertyNode * _base_wind_speed_node;
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SGPropertyNode * _gust_wind_speed_node;
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double _current_wind_speed_kt;
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double _delta_wind_speed_kt;
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};
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#endif // _ENVIRONMENT_CTRL_HXX
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