Class RubikSnake

source code

object --+
         |
        RubikSnake

Spyder-generated class

module models3d

file /home/sjoerd/data/Spyder-devel/models3d/rubiksnake.spy

Description

Representation of Rubik's Snake as an array of turns

where 0 means no turn,

1 a 45 degree right turn,

2 a 90 degree turn

and 3 a 45 degree left turn

There is always one more segment than there is turns

Unlike the traditional Rubik's Snake (23 turns)

the snake can have any length

Upon construction, the snake is validated for clashes

Wiki

http://www.spyderware.nl/wiki/classes/RubikSnake

Validate block

>>>            
for t in turns:
assert t in range(0,4)
dir1,dir2,dir3 = 1,3,5
posx,posy,posz = 0,0,0
positions = {}
positions[(posx,posy,posz)] = (dir1,dir2)
for t in turns:
posx,posy,posz = rubiksnake.move(posx,posy,posz,dir1)
dir1,dir2,dir3 = rubiksnake.turn(dir1,dir2,dir3,t)
if (posx,posy,posz) in positions:
opposite = rubiksnake.get_opposite(positions[(posx,posy,posz)])
if dir1 != opposite[0] or dir2 != opposite[1]: 
raise ValidationError("Clash detected")
positions[(posx,posy,posz)] = (dir1,dir2)               
>>>

Form block

>>>            
BLENDER
MATRIX axis
DEFAULT size 1
RANGE size 1
ELEMIN turns -1
ELEMAX turns 4
ELEDEFAULT turns 0               
>>>

Converters

Can be converted to:

• RubikSnakeCode
  • view converter (#22)
• Object3D
  • view converter (#23)

Can be converted from:

• RubikSnakeCode
  • view converter (#21)