public static AxialCoord OffsetToAxial(OffsetCoord o)
{
int q = o.col;
int r = o.row - (int)((o.col + offset * (o.col & 1)) / 2);
return(new AxialCoord(q, r));
}
public static AxialCoord ToAxialCoord(this OffsetCoord self)
{
return(CoordConvert.OffsetToAxial(self));
}