ElemInt2
An object that can be constructed from 2 Ints. These are used in ArrInt2s Array[Int] based collections.
trait ShowElemInt2
class Cood
trait TileCoord
trait TileCenOrSide
trait TileCen
class HCen
class SqCen
trait TileSide
class HSide
class SqSide
trait HCenOrSide
trait SqCenOrSide
trait TileVert
trait HCoord
trait HNotVert
class HCoordOther
class HVert
trait SqBaseCoord
trait SqCoord
class SqVert
class Roord