cubieCube {cubing}

Create and Convert CubieCubes

Description

Creates, converts and tests for cubieCube objects.

Usage

getCubieCube(pattern = c("Solved","Superflip","EasyCheckerboard","Wire","PlusMinus",
  "Tablecloth","Spiral","SpeedsolvingLogo","VerticalStripes","OppositeCorners",
  "Cross","UnionJack","CubeInTheCube","CubeInACubeInACube","Anaconda","Python",
  "BlackMamba","GreenMamba","FourSpots","SixSpots","Twister","Kilt","Tetris",
  "DontCrossLine","Hi","HiAllAround","AreYouHigh","CUAround","OrderInChaos","Quote",
  "MatchingPictures","3T","LooseStrap","ZZLine","Doubler","CheckerZigzag",
  "ExchangedDuckFeet","StripeDotSolved","Picnic","PercentSign","Mirror",
  "PlusMinusCheck","FacingCheckerboards","OppositeCheckerboards","4Plus2Dots",
  "Rockets","Slash","Pillars","TwistedDuckFeet","RonsCubeInACube","Headlights",
  "CrossingSnake","Cage","4Crosses","Pyraminx","EdgeTriangle","TwistedRings",
  "ExchangedRings","TwistedChickenFeet","ExchangedChickenFeet","CornerPyramid",
  "TwistedPeaks","ExchangedPeaks","SixTwoOne","YinYang","YanYing","HenrysSnake",
  "TwistedCorners","QuickMaths"))
cubieCube(string)
as.cubieCube(aCube)
is.cubieCube(aCube)

Arguments

pattern

A character string giving a pattern for the returned cube. Approximately seventy different patterns are available. The default pattern is the solved cube. The patterns and names are derived from the ruwix.com website.

string

A character string representing the color on each cube sticker. The string must contain only the letters URFLBD, representing the color on each face, and may contain any amount of white space. There must be 9 occurrences of each letter, or 8 occurrences if the centre stickers are omitted. A character vector can also be given instead of a character string, with one element for each letter. The sticker template can be displayed using the code at the end of the Examples section below.

aCube

Any object.

Details

The is.cubieCube function returns TRUE for cubieCube objects and FALSE otherwise. The as.cubieCube function converts a cube object to a cubieCube object and returns an error for other arguments.

The getCubieCube function creates cubieCube objects using known patterns. The cubieCube function creates cubieCube objects using colors entered by the user. For alternative ways of creating cubieCube objects, see randCube and getMovesCube.

A cubieCube is a list with five vector elements. The first four are cp ep co eo for the corner permuation, edge permuation, corner orientation, and edge orientation. The fifth, spor, tracks the fixed centres and therefore represents the spatial orientation. It exists to avoid recoloring the cube when plotting it after a rotation, middle slice move or wide move.

A stickerCube object does not hold information on spatial orientation, therefore if you convert a cubieCube to a stickerCube, and then convert back to a cubieCube, the spor vector will be reset to 1:6.

The cubieCube function contains a large amount of bulletproofing to ensure the cube has valid cubies that are stickered correctly, but the cube may or may not be solvable. Both stickerCube and cubieCube objects are designed to hold both solvable and unsolvable cubes. You can test solvability with the is.solvable function.

Value

A logical value for is.cubieCube. A cubieCube object for all other functions.

See Also

getMovesCube, is.solvable, randCube, stickerCube

Examples

aCube <- getCubieCube("Wire")
bCube <- cubieCube("UUUUUUUUU RLLRRRLLR BBFFFFFBB DDDDDDDDD LRRLLLRRL FFBBBBBFF")
cCube <- cubieCube("FBBBUFRRB DUUFRUFFB DBRBFDUFL FRDDDLDDL UUFULLLLL RDRRBLURB")
identical(aCube, bCube)
is.cubieCube(aCube)

## Not run: plot(aCube)
## Not run: plot3D(aCube)
## Not run: plot(cCube)
## Not run: plot3D(cCube)

## Not run: plot(getCubieCube(), numbers = TRUE)
## Not run: plot(getCubieCube(), numbers = TRUE, blank = TRUE)