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README
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X-BASED RUBIK'S CUBE(tm)
==================== Magic cube X widgets, V5.3.1
It has been tested on the following platforms:
HP 3xx & 700 HP-UX 9.0x X11R5
Sun4, SPARC SunOS 4.1.3 X11R4
Sun4, SPARC SunOS 5.4 X11R5
PC, 486 Linux 1.0.9 X11R5(*)
PC, 486 Linux 1.2.8 X11R6(**)
* Keypad 5 key may not work, in which case, try it with the
Num-Lock on
** Keypad may not work, since various keycodes may not be defined
by default. Check that "KP_1 - KP_9, Home, Up, Prior, Left,
Begin, Right, End, Down, Next" are defined towards the end of
/usr/lib/X11/etc/xmodmap.std . If not defined
cp /usr/lib/X11/etc/xmodmap.std /usr/lib/X11/xinit/.Xmodmap
and then motify this or create your own at ${HOME}/.Xmodmap .
You should just have to uncomment them (get rid of some '!').
This should be done before X is started.
If yours is not in this list, please let me know -- thanks. The
most updated source could be found on ftp.x.org under
/contrib/games/puzzles.
HOW TO BUILD?
Do you have Motif? If so, uncomment line 28 of Imakefile.
It should be easy. Edit the Imakefile (or Makefile.std, see below)
for appropriate settings of variable SCOREFILE, then do:
xmkmf
make
xrubik [motif version will be xmrubik]
Note: if you don't have 'xmkmf' or the "Makefile" it generates
doesn't work well, edit Makefile.std for appropriate settings for
XINCLUDEPATH and XLIBPATH, then try:
make -f Makefile.std
xrubik
or if you have Motif, uncomment appropriate sections, then try:
make -f Makefile.std all.xm
xmrubik
You should have Rubik.ad (or Stupid.ad) copied to $(HOME)/Rubik or
/usr/lib/X11/app-defaults/Rubik to run, especially if the background
is similar to one of the faces. Edit this file for your preferences.
You might want to move xrubik into /usr/bin/X11 (or wherever your
X binaries are).
You might also want to move xrubik.man to /usr/man/man6/xrubik.6
ANYTHING SPECIAL IN USING?
Click on the left mouse button to move a piece. Release it on a
piece in the same row and on the face. The puzzle will then turn
towards where the mouse button was released.
Click on the middle mouse button toggle the practice mode. (This is
good for learning moves). Also 'P' or 'p' does the same thing.
One must double click on the middle mouse button if the puzzle is
being worked on.
Click on the right mouse button if you want to randomize the puzzle.
Also 'R' or 'r' does the same thing. One must double click on
the right mouse button if the puzzle is being worked on.
'I' or 'i' to increase the number of cubes.
'D' or 'd' to decrease the number of cubes.
'O' or 'o' to toggle orient mode. (I prefer the orient mode since
it is slightly more challenging).
'S', 's' to auto-solve. It only works on 1x1x1, 2x2x2, 3x3x3 cubes.
For the 3x3x3 it only solves it in the non-orient mode.
'U' or 'u' to undo last move.
'G' or 'g' to get a saved puzzle.
'W' or 'w' to write or save a puzzle.
'Q', 'q', or Control-C to kill program.
Key pad is defined for 2d rubik as:
/
8
^
4 < 5 > 6
v
2
The key pad along with the use of the mouse will allow you to move the
cube i.e.,
KP_DIVIDE=>CCW
KP_8=>Top
KP=>Left KP_5=>CW KP_6=>Right
KP_2=>Bottom
Key pad for 3d rubik, use your intuition (is this a cop out or what?).
The key pad is defined differently depending on which side of the cube
your mouse is pointing at. One thing that stays the same is KP_5=>CW.
The control key allows you to move the whole cube at once without
being entered as a move. Hold down the control key while using the
left mouse button or the keypad.
One has to orient the faces in orient mode, besides getting all the
faces to be the same color. To do this one has to get the lines to
be oriented in the same direction, this only matters with center
cubes (i.e. those cubes not on a corner or edge). This does add
complexity so there are 2 sets of records.
Try resizing the cube. Notice the puzzle resizes to take advantage
of the "room" available.
The title is in the following format (non-motif version):
xrubik{2|3}d: {1|2|3|4|5|6} @ (<Number of moves>/\
{<Record number of moves>|NEVER|PRACTICE}) - <Comment>
{2|3}: current dimensional view
{1|2|3|4|5|6}: number of cubes per edge
{<Record...}: puzzle is either in practice mode or record mode
In record mode, if there is no record of the current puzzle, it
displays "NEVER".
If you were looking for a auto-solver, sorry. One of the problems in
auto-solvers the generally don't work for different number of cuts.
If you know of one let me know. There is a real neat 3x3x3 cube called
"magiccube" with a better 3-D look, a auto-solver, and Motif. Use
"archie" to find "magiccube" at the site nearest you.
Also a tesseract (4D cube) would be nice. (I heard a 3^N cube has been
built in software and solved!)
Personally, I have solved 1-3 using this program, 2-5 using the
physical cubes, and 6 to my knowledge have never been done (be the
first on your block). If you want you can play with MAXCUBES and
set it for 7 but then the graphics start messing up. 7 is neat
because if it was a physical cube corner pieces would fall off when
a face is turned.
Refer to the man page for detailed command line options.
If you want further information on puzzles, I'll be glad :-) to send
it to you.
SAVE FORMAT
The format is not standard. The reason is that this is simple to
produce and the standard notation is no good for variable number of
cubelets. The format will probably change to become more readable.
Consider the 2d cross representation:
size: 1-6 the number of cubes per row
orient: 0 false, 1 true lines on cube to be oriented
practice: 0 false, 1 true
moves: 0-MAXINT
startingPosition:
0 R where the starting unrandomized faces would be,
1 2 3 Y W G each face has size * size cubes
4 O if orient mode, orientation number follows face number
5 B 0 up, 1 right, 2 down, and 3 left.
This is then followed by the moves
move #: face position direction control
each turn is with respect to a face and position.
Position is 0 to size * size - 1. Position 0 is in the upper left.
Direction is represented as 0 up, 1 right, 2 down, 3 left, 5 clockwise,
and 7 counterclockwise.
Control is represented as 0 or 1, 1 if the whole cube is moved at once
(here i and j do not matter), 0 if not. The xrubik record keeper
does not count a control move as a move, but here we do.
Caution: the program may crash on corrupted input.
If you have a Rubik's cube you can't solve (2x2x2 or 3x3x3) enter
it in rubik.data file. Have size = 2 or 3, orient = 0, practice = 0,
randomized = 1, and moves = 0 and the number representation for the
color of the cubelet faces (usually 0=R, 1=Y, 2=W, 3=G, 4=O, 5=B).
Bring up xrubik, hit 'e' to enter your configuration and then 's' to
solve your cube and then 'w' to write out the steps. Then examine
your rubik.data file.
FOUND A BUG?
Send bugs reports and fixes to the author. For bugs, please include
as much information as to their location as possible, since I may not
have the resources to duplicate the them.
David Albert Bagley, bagleyd@hertz.njit.edu
HISTORY
[Apr 11, 96] V5.3.1: Even sized cubes had errors since 5.2.
[Apr 08, 96] V5.3: Minor changes.
[Jan 31, 96] V5.2: Puzzle can now moved by a more intuitive drag and
drop approach. Pieces will invert, when selected.
Now using dynamic allocation, so there is no maximum size.
[Dec 15, 95] V5.1: Minor updates, RNG for 32/64 bit, border color
to make faces look more realistic.
[Oct 06, 95] V5.0: Xt/Motif, your choice.
[May 16, 95] V4.10: Warnings removed from Sun's cc and lint and now
include a random number generator.
[Mar 13, 95] V4.9: Removed lint warnings and added a VMS make.com .
[Nov 11, 94] V4.8: Conservative guess for random number generator.
[Oct 11, 94] V4.7: Bug fix for save with undos.
[Sep 28, 94] V4.6: Now allows undos, saves, and recalls.
[Aug 08, 94] V4.5: Auto-solves from practice mode.
[Jun 23, 94] V4.4: Auto-solves up to 3x3x3 courtesy of
Michael B. Martin <martinm@sps1.phys.vt.edu>.
[Jun 15, 94] V4.3: Mistakenly used a Boolean variable in an array.
[Jun 02, 94] V4.2: Minor changes, R6.
[May 31, 94] V4.1: Minor changes, record sometimes displayed "32767"
instead of "NONE".
[May 10, 94] V4.0: Xt version.
I got some good ideas from oclock.
[May 20, 93] V3.0: Motif version.
I got some good ideas from Douglas A. Young's
book: "The X Window System Programming and Applications
with Xt OSF/Motif Edition", particularly his dial widget.
I got some good ideas on presentation from Q. Zhao's
tetris.
[Jan 16, 92] V2.0: XView version.
[Jan 16, 91] V1.0: SunView version.