immediately obvious which element of the group is the identity - at
least two elements including the identity have their rows and
columns completely blanked.
[originally from svn r8810]
you are given a partially specified Cayley table of a small finite
group, and must fill in all the missing entries using both Sudoku-
style deductions (minus the square block constraint) and the group
axioms. I've just thrown it together in about five hours by cloning-
and-hacking from Keen, as much as anything else to demonstrate that
the new latin.c interface really does make it extremely easy to
write new Latin square puzzles.
It's not really _unfinished_, as such, but it is just too esoteric
(not to mention difficult) for me to feel entirely comfortable with
adding it to the main puzzle collection. I can't bring myself to
throw it away, though, and who knows - perhaps a university maths
department might find it a useful teaching tool :-)
[originally from svn r8800]
their coordinate from 1 rather than 0, for consistency with Solo.
(My geek instincts would rather work from 0, but I've generally
found that puzzle users sending me email tend to prefer 1.)
[originally from svn r8795]
new function in the drawing API which permits the display of text
from outside basic ASCII. A fallback mechanism is provided so that
puzzles can give a list of strings they'd like to display in order
of preference and the system will return the best one it can manage;
puzzles are required to cope with ASCII-only front ends.
[originally from svn r8793]
any equivalence class is always the element with the smallest index.
This is slower (the previous behaviour, suggested by Jonas Koelker,
was to choose the new root element to maximise performance), but
still more than acceptably fast and more useful.
[originally from svn r8792]
programs having to clone the latin_solver() function and insert
their own extra deduction routines, they can now just _call_
latin_solver with enough parameters to let it fit its own deductions
into their difficulty framework and call a set of provided function
pointers to do user deductions. Modified Unequal to work in the new
world, of course.
[originally from svn r8791]
the < and > clues are replaced by bars separating every pair of
squares whose contents differ by exactly 1. Unlike standard Unequal,
which presents only a subset of the available clues, in Adjacent the
clues are _all_ present, so you can deduce from the absence of a bar
that the two numbers it would separate are _not_ consecutive.
[originally from svn r8790]
Guess, because Guess expected ^H whereas GTK generated ^?. Other
puzzles that use Backspace do it by being prepared to see either,
which seems wasteful. Now the midend normalises both into ^H, so
front ends can generate whichever they like while puzzles can
safely just look for ^H.
[originally from svn r8786]
buttons in several games if STYLUS_BASED is defined: in games where
you can set a puzzle element to 'on', 'off' or 'not yet set', when
it's hard to mimic a second mouse button, it's better to have the
one 'button' cycle between all three states rather than from 'on'
back to 'unset'.
[originally from svn r8784]
compiling gtk.c with STYLUS_BASED defined: most notably, it provides
a row of numeric 'keys' made of GTK button widgets for puzzles that
want a numeric keypad.
[originally from svn r8783]
in r8414 as a side effect of reorganisation in interpret_move().
Reinstate them.
[originally from svn r8692]
[r8414 == 54801998744a69786a49ebe0688942ae7b57525b]
notice that there was an _official_ way to have menu items marked as
selected or unselected, which is the GtkRadioMenuItem class. Replace
my ad-hoc use of bullet characters with that.
[originally from svn r8601]
[r7980 == ae6c7381272f84c0fd398f6d3e496f571ba42ec8]
available, which magically seems to eliminate most if not all of the
update lag when dragging a point in a large (say 250-point)
Untangle. I don't fully understand how this works, but it seems to!
[originally from svn r8600]
on labels in tables. The effect is that if you resize (e.g.) Solo's
configuration panel, the labels to the left of the various input
boxes will remain just big enough to fit their text in, and all the
extra space will be taken up by the useful part, i.e. the input
boxes themselves. Previously the labels and input boxes would expand
in a 1:1 ratio, causing lots of space to the right of the label text
that wasn't used for anything.
[originally from svn r8599]
