HVert direction of offset towards HCen. These objects should not be confused with HSteps. Stored as a 4 bit number between 0 and 15 although only values 0 to 8 currently used.
Utility method to append this element on to an ArrayBuffer[Int]. End users should rarely need to use this method. This is useful for methods like filter.
Utility method to append this element on to an ArrayBuffer[Int]. End users should rarely need to use this method. This is useful for methods like filter.