125 lines
3.3 KiB
C++
125 lines
3.3 KiB
C++
/*
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* This file is part of the Owl Positioning System (OwlPS).
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* OwlPS is a project of the University of Franche-Comte
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* (Université de Franche-Comté), France.
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*
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* Copyright © Université de Franche-Comté 2007-2012.
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*
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* Corresponding author: Matteo Cypriani <mcy@lm7.fr>
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*
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***********************************************************************
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*
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* This software is governed by the CeCILL license under French law and
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* abiding by the rules of distribution of free software. You can use,
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* modify and/or redistribute the software under the terms of the CeCILL
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* license as circulated by CEA, CNRS and INRIA at the following URL:
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* http://www.cecill.info
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*
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* As a counterpart to the access to the source code and rights to copy,
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* modify and redistribute granted by the license, users are provided
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* only with a limited warranty and the software's authors, the holder
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* of the economic rights, and the successive licensors have only
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* limited liability.
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*
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* In this respect, the user's attention is drawn to the risks
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* associated with loading, using, modifying and/or developing or
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* reproducing the software by the user in light of its specific status
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* of free software, that may mean that it is complicated to manipulate,
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* and that also therefore means that it is reserved for developers and
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* experienced professionals having in-depth computer knowledge. Users
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* are therefore encouraged to load and test the software's suitability
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* as regards their requirements in conditions enabling the security of
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* their systems and/or data to be ensured and, more generally, to use
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* and operate it in the same conditions as regards security.
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*
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* The fact that you are presently reading this means that you have had
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* knowledge of the CeCILL license and that you accept its terms.
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*
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***********************************************************************
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*/
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#ifndef _OWLPS_POSITIONING_DIRECTION_HH_
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#define _OWLPS_POSITIONING_DIRECTION_HH_
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#include <string>
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/// \brief Represents a direction in which a mobile is when it sends a
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/// CalibrationRequest
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class Direction
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{
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protected:
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char direction ;
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void assert_valid(void) const ;
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bool is_valid(void) const ;
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public:
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enum {north = 1, east, south, west} ;
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Direction(void): direction(0) {}
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Direction(const char source) ;
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Direction(const Direction &source): direction(source.direction) {}
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/** @name Accessors */
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//@{
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void clear(void) ;
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//@}
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/** @name Operators */
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//@{
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Direction& operator=(const Direction &source) ;
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Direction& operator=(const char source) ;
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bool operator==(const Direction &source) const ;
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bool operator!=(const Direction &source) const ;
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operator bool(void) const ;
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operator int(void) const ;
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operator std::string(void) const ;
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//@}
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// Hashes a Direction
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friend size_t hash_value(const Direction &source) ;
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} ;
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/* *** Accessors *** */
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inline void Direction::clear()
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{
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direction = 0 ;
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}
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/* *** Operators *** */
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inline bool Direction::operator==(const Direction &source) const
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{
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return direction == source.direction ;
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}
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inline bool Direction::operator!=(const Direction &source) const
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{
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return !(*this == source) ;
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}
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inline Direction::operator bool() const
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{
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return is_valid() ;
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}
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inline Direction::operator int() const
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{
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return static_cast<int>(direction) ;
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}
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#endif // _OWLPS_POSITIONING_DIRECTION_HH_
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