ConditionOnce.cpp

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/***************************************************************************
  tag: Peter Soetens  Tue Apr 5 16:53:24 CEST 2005  ConditionOnce.cxx

                        ConditionOnce.cxx -  description
                           -------------------
    begin                : Tue April 05 2005
    copyright            : (C) 2005 Peter Soetens
    email                : peter.soetens@mech.kuleuven.ac.be

 ***************************************************************************
 *   This library is free software; you can redistribute it and/or         *
 *   modify it under the terms of the GNU General Public                   *
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 *   version 2 of the License.                                             *
 *                                                                         *
 *   As a special exception, you may use this file as part of a free       *
 *   software library without restriction.  Specifically, if other files   *
 *   instantiate templates or use macros or inline functions from this     *
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 *   resulting executable to be covered by the GNU General Public          *
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 *   Public License.                                                       *
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#include "ConditionOnce.hpp"

namespace RTT {
    using namespace scripting;
    using namespace base;

    ConditionOnce::ConditionOnce(bool what) : ran( false ), _what(what)
    {}

    ConditionOnce::~ConditionOnce()
    {}

    bool ConditionOnce::evaluate()
    {
        if ( ran == true )
            return !_what;
        else
            ran = true;
        return _what;
    }

    void ConditionOnce::reset()
    {
        ran = false;
    }

    ConditionInterface* ConditionOnce::clone() const
    {
        return new ConditionOnce( _what );
    }
}