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#pragma once
#include "geometry/rect2d.hpp"
#include "geometry/screenbase.hpp"
#include "base/matrix.hpp"
namespace df
{
struct TileKey
{
TileKey();
TileKey(int x, int y, int zoomLevel);
TileKey(TileKey const & key, uint64_t generation);
// Operators < and == do not consider parameter m_generation.
// m_generation is used to determine a generation of geometry for this tile key.
// Geometry with different generations must be able to group by (x, y, zoomlevel).
bool operator < (TileKey const & other) const;
bool operator == (TileKey const & other) const;
// These methods implement strict comparison of tile keys. It's necessary to merger of
// batches which must not merge batches with different m_generation.
bool LessStrict(TileKey const & other) const;
bool EqualStrict(TileKey const & other) const;
m2::RectD GetGlobalRect(bool clipByDataMaxZoom = true) const;
math::Matrix<float, 4, 4> GetTileBasedModelView(ScreenBase const & screen) const;
int m_x;
int m_y;
int m_zoomLevel;
uint64_t m_generation;
};
struct TileKeyStrictComparator
{
bool operator() (TileKey const & lhs, TileKey const & rhs) const
{
return lhs.LessStrict(rhs);
}
};
string DebugPrint(TileKey const & key);
} // namespace df
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