72 lines
1.7 KiB
C++
72 lines
1.7 KiB
C++
#ifndef OSRM_UTIL_GUIDANCE_BEARING_CLASS_HPP_
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#define OSRM_UTIL_GUIDANCE_BEARING_CLASS_HPP_
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#include "util/std_hash.hpp"
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#include "util/typedefs.hpp"
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#include <cstddef>
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#include <cstdint>
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#include <functional>
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#include <vector>
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namespace osrm::util::guidance
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{
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class BearingClass;
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} // namespace osrm::util::guidance
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namespace std
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{
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template <> struct hash<::osrm::util::guidance::BearingClass>
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{
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inline std::size_t operator()(const ::osrm::util::guidance::BearingClass &bearing_class) const;
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};
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} // namespace std
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namespace osrm::util::guidance
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{
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class BearingClass
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{
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public:
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BearingClass();
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// Add a bearing to the set
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void add(const DiscreteBearing bearing);
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// hashing
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bool operator==(const BearingClass &other) const;
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// sorting
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bool operator<(const BearingClass &other) const;
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const std::vector<DiscreteBearing> &getAvailableBearings() const;
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std::size_t findMatchingBearing(const double bearing) const;
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const constexpr static double discrete_step_size = 360. / 24.;
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static DiscreteBearing getDiscreteBearing(const double bearing);
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private:
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std::vector<DiscreteBearing> available_bearings;
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// allow hash access to internal representation
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friend std::size_t std::hash<BearingClass>::operator()(const BearingClass &) const;
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};
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} // namespace osrm::util::guidance
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// make Bearing Class hasbable
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namespace std
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{
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inline size_t hash<::osrm::util::guidance::BearingClass>::operator()(
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const ::osrm::util::guidance::BearingClass &bearing_class) const
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{
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std::size_t value = 0;
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hash_range(
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value, bearing_class.available_bearings.cbegin(), bearing_class.available_bearings.cend());
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return value;
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}
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} // namespace std
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#endif /* OSRM_UTIL_GUIDANCE_BEARING_CLASS_HPP_ */
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