Tessellation

class Tessellation(value)

All game tessellations.

HEXOBAN = 1

Tessellation for Hexoban game variant.

Board space is laid out on vertical hexagons with following coordinate system:

Textual representation uses two characters for each hexagon. This allows different encoding schemes.

Scheme 1	Scheme 2

As long as encoding of single board is consistent, all methods handle any scheme transparently - parsing of board strings ‘Just Works (TM)’

Direction <-> character mapping:

LEFT	RIGHT	NORTH_WEST	SOUTH_WEST	NORTH_EAST	SOUTH_EAST
l, L	r, R	u, U	d, D	n, N	s, S

OCTOBAN = 3

Tessellation for Octoban game variant.

Board space is laid out on alternating squares and octagons with origin of coordinate system being octagon. Tessellation allows all 8 directions of movement from Direction and depending on current pusher position some of these directions do not result in successful move.

Direction <-> character mapping:

UP	NORTH_EAST	RIGHT	SOUTH_EAST	DOWN	SOUTH_WEST	LEFT	NORTH_WEST
u, U	n, N	r, R	e, E	d, D	s, S	l, L	w, W

SOKOBAN = 0

Tessellation for Sokoban game variant.

Board is laid out on squares.

Direction <-> character mapping:

LEFT	RIGHT	UP	DOWN
l, L	r, R	u, U	d, D

TRIOBAN = 2

Tessellation for Trioban game variant.

Board is laid out on alternating triangles with origin triangle pointing down.

Direction <-> character mapping:

LEFT	RIGHT	NORTH_EAST	NORTH_WEST	SOUTH_EAST	SOUTH_WEST
l, L	r, R	n, N	u, U	d, D	s, S

Depending on pusher position, not all move directions are allowed on all board positions: