64 lines
1.3 KiB
C++
64 lines
1.3 KiB
C++
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// turn_indicator.hxx - an electric-powered turn indicator.
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// Written by David Megginson, started 2003.
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//
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// This file is in the Public Domain and comes with no warranty.
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#ifndef __INSTRUMENTS_TURN_INDICATOR_HXX
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#define __INSTRUMENTS_TURN_INDICATOR_HXX 1
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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 <simgear/misc/props.hxx>
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#include <Main/fgfs.hxx>
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#include "gyro.hxx"
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/**
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* Model an electric-powered turn indicator.
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*
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* This class does not model the slip/skid ball; that is properly
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* a separate instrument.
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*
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* Input properties:
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*
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* /instrumentation/turn-indicator/serviceable
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* /instrumentation/turn-indicator/spin
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* /orientation/roll-rate-degps
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* /orientation/yaw-rate-degps
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* /systems/electrical/outputs/turn-coordinator
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*
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* Output properties:
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*
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* /instrumentation/turn-indicator/indicated-turn-rate
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*/
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class TurnIndicator : public FGSubsystem
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{
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public:
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TurnIndicator ();
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virtual ~TurnIndicator ();
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virtual void init ();
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virtual void bind ();
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virtual void unbind ();
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virtual void update (double dt);
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private:
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Gyro _gyro;
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double _last_rate;
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SGPropertyNode_ptr _roll_rate_node;
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SGPropertyNode_ptr _yaw_rate_node;
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SGPropertyNode_ptr _electric_current_node;
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SGPropertyNode_ptr _rate_out_node;
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};
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#endif // __INSTRUMENTS_TURN_INDICATOR_HXX
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