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flightgear/src/Cockpit/marker_beacon.hxx

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C++

// marker_beacon.hxx -- class to manage the marker beacons
//
// Written by Curtis Olson, started April 2000.
//
// Copyright (C) 2000 Curtis L. Olson - curt@flightgear.org
//
// 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 _FG_MARKER_BEACON_HXX
#define _FG_MARKER_BEACON_HXX
#include <Main/fg_props.hxx>
#include <simgear/compiler.h>
#include <simgear/structure/subsystem_mgr.hxx>
#include <simgear/math/interpolater.hxx>
#include <simgear/timing/timestamp.hxx>
#include <Sound/beacon.hxx>
#include <Sound/morse.hxx>
class FGMarkerBeacon : public SGSubsystem
{
FGBeacon beacon;
FGMorse morse;
SGInterpTable *term_tbl;
SGInterpTable *low_tbl;
SGInterpTable *high_tbl;
SGPropertyNode *lon_node;
SGPropertyNode *lat_node;
SGPropertyNode *alt_node;
SGPropertyNode *bus_power;
SGPropertyNode *power_btn;
SGPropertyNode *audio_btn;
SGPropertyNode *serviceable;
bool need_update;
bool outer_marker;
bool middle_marker;
bool inner_marker;
SGTimeStamp blink;
bool outer_blink;
bool middle_blink;
bool inner_blink;
public:
FGMarkerBeacon();
~FGMarkerBeacon();
void init ();
void bind ();
void unbind ();
void update (double dt);
// Update nav/adf radios based on current postition
void search ();
// Marker Beacon Accessors
inline bool get_inner_blink () const { return inner_blink; }
inline bool get_middle_blink () const { return middle_blink; }
inline bool get_outer_blink () const { return outer_blink; }
inline bool has_power() const {
return power_btn->getBoolValue() && (bus_power->getDoubleValue() > 1.0);
}
};
#endif // _FG_MARKER_BEACON_HXX