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#ifndef MBGL_UTIL_TILE_COORDINATE
#define MBGL_UTIL_TILE_COORDINATE
#include <mbgl/util/vec.hpp>
namespace mbgl {
struct TileCoordinate {
double column;
double row;
double zoom;
TileCoordinate(double column_, double row_, double zoom_) :
column(column_), row(row_), zoom(zoom_) {}
TileCoordinate zoomTo(double targetZoom) {
double scale = std::pow(2, targetZoom - zoom);
return { column * scale, row * scale, targetZoom };
}
TileCoordinate operator-(TileCoordinate c) {
c = c.zoomTo(zoom);
return { column - c.column, row - c.row, zoom };
};
};
} // namespace mbgl
#endif
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