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#pragma once
#include "geometry/point2d.hpp"
#include "base/buffer_vector.hpp"
#include "base/osm_id.hpp"
#include <cstdint>
#include <vector>
namespace indexer
{
// Class for intermediate objects used to build LocalityIndex.
class LocalityObject
{
public:
// Decodes id stored in LocalityIndex. See GetStoredId().
static osm::Id FromStoredId(uint64_t storedId) { return osm::Id(storedId >> 2 | storedId << 62); }
// We need LocalityIndex object id to be at most numeric_limits<int64_t>::max().
// We use incremental encoding for ids and need to keep ids of close object close if it is possible.
// To ensure it we move two leading bits which encodes object type to the end of id.
uint64_t GetStoredId() const { return m_id << 2 | m_id >> 62; }
void Deserialize(char const * data);
template <typename ToDo>
void ForEachPoint(ToDo && toDo) const
{
for (auto const & p : m_points)
toDo(p);
}
template <typename ToDo>
void ForEachTriangle(ToDo && toDo) const
{
for (size_t i = 2; i < m_triangles.size(); i += 3)
toDo(m_triangles[i - 2], m_triangles[i - 1], m_triangles[i]);
}
void SetForTests(uint64_t id, m2::PointD point)
{
m_id = id;
m_points.clear();
m_points.push_back(point);
}
private:
uint64_t m_id = 0;
std::vector<m2::PointD> m_points;
// m_triangles[3 * i], m_triangles[3 * i + 1], m_triangles[3 * i + 2] form the i-th triangle.
buffer_vector<m2::PointD, 32> m_triangles;
};
} // namespace indexer
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