Commit | Line | Data |
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6594deb0 ER |
1 | ;;; mpuz.el --- multiplication puzzle for GNU Emacs |
2 | ||
ba318903 | 3 | ;; Copyright (C) 1990, 2001-2014 Free Software Foundation, Inc. |
0aba61c5 | 4 | |
2b38b487 | 5 | ;; Author: Philippe Schnoebelen <phs@lsv.ens-cachan.fr> |
d93196b3 | 6 | ;; Overhauled: Daniel Pfeiffer <occitan@esperanto.org> |
84176303 ER |
7 | ;; Keywords: games |
8 | ||
5f7e5584 RS |
9 | ;; This file is part of GNU Emacs. |
10 | ||
b1fc2b50 | 11 | ;; GNU Emacs is free software: you can redistribute it and/or modify |
59243403 | 12 | ;; it under the terms of the GNU General Public License as published by |
b1fc2b50 GM |
13 | ;; the Free Software Foundation, either version 3 of the License, or |
14 | ;; (at your option) any later version. | |
59243403 | 15 | |
5f7e5584 | 16 | ;; GNU Emacs is distributed in the hope that it will be useful, |
59243403 RS |
17 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of |
18 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | ;; GNU General Public License for more details. | |
20 | ||
21 | ;; You should have received a copy of the GNU General Public License | |
b1fc2b50 | 22 | ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. |
5f7e5584 | 23 | |
edbd2f74 ER |
24 | ;;; Commentary: |
25 | ||
d93196b3 EZ |
26 | ;; `M-x mpuz' generates a random multiplication puzzle. This is a |
27 | ;; multiplication example in which each digit has been consistently replaced | |
28 | ;; with some letter. Your job is to reconstruct the original digits. Type | |
29 | ;; `?' while the mode is active for detailed help. | |
edbd2f74 | 30 | |
84176303 ER |
31 | ;;; Code: |
32 | ||
323f7c49 SE |
33 | (defgroup mpuz nil |
34 | "Multiplication puzzle." | |
35 | :prefix "mpuz-" | |
36 | :group 'games) | |
37 | ||
d93196b3 | 38 | (defcustom mpuz-silent 'error |
67d110f1 | 39 | "Set this to nil if you want dings on inputs. |
c6c32125 | 40 | The value t means never ding, and `error' means only ding on wrong input." |
d93196b3 EZ |
41 | :type '(choice (const :tag "No" nil) |
42 | (const :tag "Yes" t) | |
43 | (const :tag "If correct" error)) | |
44 | :group 'mpuz) | |
45 | ||
46 | (defcustom mpuz-solve-when-trivial t | |
67d110f1 | 47 | "Solve any row that can be trivially calculated from what you've found." |
323f7c49 SE |
48 | :type 'boolean |
49 | :group 'mpuz) | |
5f7e5584 | 50 | |
d93196b3 | 51 | (defcustom mpuz-allow-double-multiplicator nil |
67d110f1 | 52 | "Allow 2nd factors like 33 or 77." |
d93196b3 EZ |
53 | :type 'boolean |
54 | :group 'mpuz) | |
55 | ||
530b0472 | 56 | (defface mpuz-unsolved |
4b56d0fe CY |
57 | '((default :weight bold) |
58 | (((class color)) :foreground "red1")) | |
59 | "Face for letters to be solved." | |
d93196b3 EZ |
60 | :group 'mpuz) |
61 | ||
530b0472 | 62 | (defface mpuz-solved |
4b56d0fe CY |
63 | '((default :weight bold) |
64 | (((class color)) :foreground "green1")) | |
65 | "Face for solved digits." | |
d93196b3 EZ |
66 | :group 'mpuz) |
67 | ||
530b0472 | 68 | (defface mpuz-trivial |
4b56d0fe CY |
69 | '((default :weight bold) |
70 | (((class color)) :foreground "blue")) | |
71 | "Face for trivial digits solved for you." | |
d93196b3 EZ |
72 | :group 'mpuz) |
73 | ||
530b0472 | 74 | (defface mpuz-text |
4b56d0fe CY |
75 | '((t :inherit variable-pitch)) |
76 | "Face for text on right." | |
d93196b3 | 77 | :group 'mpuz) |
5f7e5584 RS |
78 | |
79 | \f | |
80 | ;; Mpuz mode and keymaps | |
81 | ;;---------------------- | |
323f7c49 SE |
82 | (defcustom mpuz-mode-hook nil |
83 | "Hook to run upon entry to mpuz." | |
84 | :type 'hook | |
85 | :group 'mpuz) | |
5f7e5584 | 86 | |
a0310a6c DN |
87 | (defvar mpuz-mode-map |
88 | (let ((map (make-sparse-keymap))) | |
c6c32125 JB |
89 | (mapc (lambda (ch) |
90 | (define-key map (char-to-string ch) 'mpuz-try-letter)) | |
91 | "abcdefghijABCDEFGHIJ") | |
a0310a6c DN |
92 | (define-key map "\C-g" 'mpuz-offer-abort) |
93 | (define-key map "?" 'describe-mode) | |
94 | map) | |
5f7e5584 RS |
95 | "Local keymap to use in Mult Puzzle.") |
96 | ||
1b3b87df SM |
97 | |
98 | ||
99 | (define-derived-mode mpuz-mode fundamental-mode "Mult Puzzle" | |
58c43274 | 100 | "Multiplication puzzle mode. |
5f7e5584 | 101 | |
a0963566 | 102 | You have to guess which letters stand for which digits in the |
58c43274 | 103 | multiplication displayed inside the `*Mult Puzzle*' buffer. |
5f7e5584 | 104 | |
58c43274 | 105 | You may enter a guess for a letter's value by typing first the letter, |
d93196b3 | 106 | then the digit. Thus, to guess that A=3, type `A 3'. |
5f7e5584 | 107 | |
58c43274 RS |
108 | To leave the game to do other editing work, just switch buffers. |
109 | Then you may resume the game with M-x mpuz. | |
110 | You may abort a game by typing \\<mpuz-mode-map>\\[mpuz-offer-abort]." | |
1b3b87df | 111 | (setq tab-width 30)) |
5f7e5584 RS |
112 | |
113 | \f | |
114 | ;; Some variables for statistics | |
115 | ;;------------------------------ | |
116 | (defvar mpuz-nb-errors 0 | |
a0963566 | 117 | "Number of errors made in current game.") |
5f7e5584 RS |
118 | |
119 | (defvar mpuz-nb-completed-games 0 | |
a0963566 | 120 | "Number of games completed.") |
5f7e5584 RS |
121 | |
122 | (defvar mpuz-nb-cumulated-errors 0 | |
123 | "Number of errors made in previous games.") | |
124 | ||
125 | ||
126 | ;; Some variables for game tracking | |
127 | ;;--------------------------------- | |
128 | (defvar mpuz-in-progress nil | |
129 | "True if a game is currently in progress.") | |
130 | ||
d93196b3 | 131 | (defvar mpuz-found-digits (make-bool-vector 10 nil) |
5f7e5584 RS |
132 | "A vector recording which digits have been decrypted.") |
133 | ||
d93196b3 EZ |
134 | (defvar mpuz-trivial-digits (make-bool-vector 10 nil) |
135 | "A vector recording which digits have been solved for you.") | |
136 | ||
5f7e5584 | 137 | (defmacro mpuz-digit-solved-p (digit) |
d93196b3 EZ |
138 | `(or (aref mpuz-found-digits ,digit) |
139 | (aref mpuz-trivial-digits ,digit))) | |
5f7e5584 RS |
140 | |
141 | ||
142 | ;; A puzzle uses a permutation of [0..9] into itself. | |
143 | ;; We use both the permutation and its inverse. | |
144 | ;;--------------------------------------------------- | |
145 | (defvar mpuz-digit-to-letter (make-vector 10 0) | |
146 | "A permutation from [0..9] to [0..9].") | |
147 | ||
148 | (defvar mpuz-letter-to-digit (make-vector 10 0) | |
c6c32125 | 149 | "The inverse of `mpuz-digit-to-letter'.") |
5f7e5584 RS |
150 | |
151 | (defmacro mpuz-to-digit (letter) | |
152 | (list 'aref 'mpuz-letter-to-digit letter)) | |
153 | ||
154 | (defmacro mpuz-to-letter (digit) | |
155 | (list 'aref 'mpuz-digit-to-letter digit)) | |
156 | ||
157 | (defun mpuz-build-random-perm () | |
158 | "Initialize puzzle coding with a random permutation." | |
159 | (let ((letters (list 0 1 2 3 4 5 6 7 8 9)) ; new cons cells, because of delq | |
160 | (index 10) | |
161 | elem) | |
162 | (while letters | |
c9575b25 | 163 | (setq elem (nth (random index) letters) |
5f7e5584 RS |
164 | letters (delq elem letters) |
165 | index (1- index)) | |
166 | (aset mpuz-digit-to-letter index elem) | |
167 | (aset mpuz-letter-to-digit elem index)))) | |
168 | ||
169 | ||
eb8c3be9 | 170 | ;; A puzzle also uses a board displaying a multiplication. |
5f7e5584 RS |
171 | ;; Every digit appears in the board, crypted or not. |
172 | ;;------------------------------------------------------ | |
173 | (defvar mpuz-board (make-vector 10 nil) | |
f582564f | 174 | "The board associates to any digit the list of squares where it appears.") |
5f7e5584 | 175 | |
c6c32125 | 176 | (defun mpuz-put-number-on-board (number row &rest columns) |
d93196b3 EZ |
177 | "Put (last digit of) NUMBER on ROW and COLUMNS of the puzzle board." |
178 | (let (digit) | |
c6c32125 | 179 | (dolist (column columns) |
d93196b3 | 180 | (setq digit (% number 10) |
c6c32125 JB |
181 | number (/ number 10)) |
182 | (aset mpuz-board digit `((,row . ,column) ,@(aref mpuz-board digit)))))) | |
5f7e5584 | 183 | |
d93196b3 | 184 | (defun mpuz-check-all-solved (&optional row col) |
c6c32125 | 185 | "Check whether all digits have been solved. Return t if yes." |
d93196b3 EZ |
186 | (catch 'solved |
187 | (let (A B1 B2 C D E squares) | |
188 | (and mpuz-solve-when-trivial | |
189 | (not row) | |
190 | (while | |
191 | (cond ((or (and (setq B1 (or B1 (mpuz-check-all-solved 4 7)) | |
192 | B2 (or B2 (mpuz-check-all-solved 4 9)) | |
193 | E (or E (mpuz-check-all-solved 10)) | |
194 | A (or A (mpuz-check-all-solved 2))) | |
195 | B1 B2) | |
196 | (and E (or A (and B1 B2)))) | |
197 | (mpuz-solve) | |
198 | (mpuz-paint-board) | |
199 | (throw 'solved t)) | |
200 | ((and (setq D (or D (mpuz-check-all-solved 8)) | |
201 | C (or C (mpuz-check-all-solved 6))) | |
202 | D (not E)) | |
203 | (mpuz-solve 10)) | |
204 | ((and E (not (eq C D))) | |
205 | (mpuz-solve (if D 6 8))) | |
206 | ((and A (not (eq B2 C))) | |
207 | (mpuz-solve (if C 4 6) (if C 9))) | |
208 | ((and A (not (eq B1 D))) | |
209 | (mpuz-solve (if D 4 8) (if D 7))) | |
210 | ((and (not A) (or (and B2 C) (and B1 D))) | |
211 | (mpuz-solve 2))))) | |
212 | (mpuz-paint-board) | |
213 | (mapc (lambda (digit) | |
214 | (and (not (mpuz-digit-solved-p digit)) ; unsolved | |
215 | (setq squares (aref mpuz-board digit)) | |
216 | (if row | |
217 | (if col | |
218 | (member (cons row col) squares) | |
219 | (assq row squares)) | |
220 | squares) ; and appearing in the puzzle! | |
221 | (throw 'solved nil))) | |
222 | [0 1 2 3 4 5 6 7 8 9])) | |
5f7e5584 RS |
223 | t)) |
224 | ||
225 | ||
226 | ;; To build a puzzle, we take two random numbers and multiply them. | |
227 | ;; We also take a random permutation for encryption. | |
228 | ;; The random numbers are only use to see which digit appears in which square | |
229 | ;; of the board. Everything is stored in individual squares. | |
230 | ;;--------------------------------------------------------------------------- | |
231 | (defun mpuz-random-puzzle () | |
232 | "Draw random values to be multiplied in a puzzle." | |
233 | (mpuz-build-random-perm) | |
234 | (fillarray mpuz-board nil) ; erase the board | |
d93196b3 EZ |
235 | ;; A,B,C,D & E, are the five rows of our multiplication. |
236 | ;; Choose random values, discarding cases with leading zeros in C or D. | |
a87c4c30 DK |
237 | (let* ((A (if mpuz-allow-double-multiplicator (+ 112 (random 888)) |
238 | (+ 125 (random 875)))) | |
239 | (min (1+ (/ 999 A))) | |
d93196b3 EZ |
240 | (B1 (+ min (random (- 10 min)))) |
241 | B2 C D E) | |
242 | (while (if (= B1 (setq B2 (+ min (random (- 10 min))))) | |
243 | (not mpuz-allow-double-multiplicator))) | |
244 | (setq C (* A B2) | |
245 | D (* A B1) | |
246 | E (+ C (* D 10))) | |
a7acbbe4 | 247 | ;; Individual digits are now put on their respective squares. |
d93196b3 EZ |
248 | ;; [NB: A square is a pair (row . column) of the screen.] |
249 | (mpuz-put-number-on-board A 2 9 7 5) | |
250 | (mpuz-put-number-on-board (+ (* B1 10) B2) 4 9 7) | |
251 | (mpuz-put-number-on-board C 6 9 7 5 3) | |
252 | (mpuz-put-number-on-board D 8 7 5 3 1) | |
253 | (mpuz-put-number-on-board E 10 9 7 5 3 1))) | |
5f7e5584 RS |
254 | \f |
255 | ;; Display | |
256 | ;;-------- | |
257 | (defconst mpuz-framework | |
258 | " | |
259 | . . . | |
d93196b3 | 260 | Number of errors (this game): 0 |
5f7e5584 RS |
261 | x . . |
262 | ------- | |
263 | . . . . | |
d93196b3 | 264 | Number of completed games: 0 |
5f7e5584 | 265 | . . . . |
d93196b3 | 266 | --------- Average number of errors: 0.00 |
5f7e5584 RS |
267 | . . . . ." |
268 | "The general picture of the puzzle screen, as a string.") | |
269 | ||
270 | (defun mpuz-create-buffer () | |
c6c32125 | 271 | "Create (or recreate) the puzzle buffer. Return it." |
d93196b3 | 272 | (let ((buf (get-buffer-create "*Mult Puzzle*")) |
530b0472 | 273 | (face '(face mpuz-text)) |
d93196b3 | 274 | buffer-read-only) |
937e6a56 | 275 | (with-current-buffer buf |
d93196b3 EZ |
276 | (erase-buffer) |
277 | (insert mpuz-framework) | |
278 | (set-text-properties 13 42 face) | |
279 | (set-text-properties 79 105 face) | |
280 | (set-text-properties 128 153 face) | |
281 | (mpuz-paint-board) | |
282 | (mpuz-paint-errors) | |
283 | (mpuz-paint-statistics)) | |
284 | buf)) | |
285 | ||
286 | (defun mpuz-paint-number (n &optional eol words) | |
287 | (end-of-line eol) | |
288 | (let (buffer-read-only) | |
289 | (delete-region (point) | |
290 | (progn (backward-word (or words 1)) (point))) | |
291 | (insert n))) | |
5f7e5584 RS |
292 | |
293 | (defun mpuz-paint-errors () | |
294 | "Paint error count on the puzzle screen." | |
295 | (mpuz-switch-to-window) | |
9b4c5ecd GM |
296 | (goto-char (point-min)) |
297 | (forward-line 2) | |
d93196b3 | 298 | (mpuz-paint-number (prin1-to-string mpuz-nb-errors))) |
5f7e5584 RS |
299 | |
300 | (defun mpuz-paint-statistics () | |
301 | "Paint statistics about previous games on the puzzle screen." | |
9b4c5ecd GM |
302 | (goto-char (point-min)) |
303 | (forward-line 6) | |
d93196b3 EZ |
304 | (mpuz-paint-number (prin1-to-string mpuz-nb-completed-games)) |
305 | (mpuz-paint-number | |
306 | (format "%.2f" | |
307 | (if (zerop mpuz-nb-completed-games) | |
308 | 0 | |
309 | (/ (+ 0.0 mpuz-nb-cumulated-errors) | |
310 | mpuz-nb-completed-games))) | |
311 | 3 2)) | |
5f7e5584 RS |
312 | |
313 | (defun mpuz-paint-board () | |
314 | "Paint board situation on the puzzle screen." | |
315 | (mpuz-switch-to-window) | |
d93196b3 | 316 | (mapc 'mpuz-paint-digit [0 1 2 3 4 5 6 7 8 9]) |
5f7e5584 RS |
317 | (goto-char (point-min))) |
318 | ||
319 | (defun mpuz-paint-digit (digit) | |
320 | "Paint all occurrences of DIGIT on the puzzle board." | |
5f7e5584 RS |
321 | (let ((char (if (mpuz-digit-solved-p digit) |
322 | (+ digit ?0) | |
d93196b3 EZ |
323 | (+ (mpuz-to-letter digit) ?A))) |
324 | (face `(face | |
530b0472 MB |
325 | ,(cond ((aref mpuz-trivial-digits digit) 'mpuz-trivial) |
326 | ((aref mpuz-found-digits digit) 'mpuz-solved) | |
327 | ('mpuz-unsolved)))) | |
d93196b3 EZ |
328 | buffer-read-only) |
329 | (mapc (lambda (square) | |
9b4c5ecd GM |
330 | (goto-char (point-min)) |
331 | (forward-line (1- (car square))) ; line before column! | |
d93196b3 EZ |
332 | (move-to-column (cdr square)) |
333 | (insert char) | |
334 | (set-text-properties (1- (point)) (point) face) | |
335 | (delete-char 1)) | |
336 | (aref mpuz-board digit)))) | |
5f7e5584 RS |
337 | |
338 | (defun mpuz-get-buffer () | |
339 | "Get the puzzle buffer if it exists." | |
340 | (get-buffer "*Mult Puzzle*")) | |
341 | ||
342 | (defun mpuz-switch-to-window () | |
343 | "Find or create the Mult-Puzzle buffer, and display it." | |
d93196b3 EZ |
344 | (let ((buf (mpuz-get-buffer))) |
345 | (or buf (setq buf (mpuz-create-buffer))) | |
346 | (switch-to-buffer buf) | |
d7f5c8f9 | 347 | (setq buffer-read-only t) |
5f7e5584 RS |
348 | (mpuz-mode))) |
349 | ||
350 | \f | |
351 | ;; Game control | |
352 | ;;------------- | |
5f7e5584 RS |
353 | (defun mpuz-start-new-game () |
354 | "Start a new puzzle." | |
355 | (message "Here we go...") | |
356 | (setq mpuz-nb-errors 0 | |
357 | mpuz-in-progress t) | |
358 | (fillarray mpuz-found-digits nil) ; initialize mpuz-found-digits | |
d93196b3 | 359 | (fillarray mpuz-trivial-digits nil) |
5f7e5584 RS |
360 | (mpuz-random-puzzle) |
361 | (mpuz-switch-to-window) | |
362 | (mpuz-paint-board) | |
363 | (mpuz-paint-errors) | |
364 | (mpuz-ask-for-try)) | |
365 | ||
58c43274 RS |
366 | ;;;###autoload |
367 | (defun mpuz () | |
5f7e5584 RS |
368 | "Multiplication puzzle with GNU Emacs." |
369 | ;; Main entry point | |
370 | (interactive) | |
371 | (mpuz-switch-to-window) | |
372 | (if mpuz-in-progress | |
373 | (mpuz-offer-abort) | |
d93196b3 | 374 | (mpuz-start-new-game))) |
5f7e5584 RS |
375 | |
376 | (defun mpuz-offer-abort () | |
377 | "Ask if user wants to abort current puzzle." | |
378 | (interactive) | |
ce5a3ac0 | 379 | (if (y-or-n-p "Abort game? ") |
d93196b3 EZ |
380 | (let ((buf (mpuz-get-buffer))) |
381 | (message "Mult Puzzle aborted.") | |
382 | (setq mpuz-in-progress nil | |
383 | mpuz-nb-errors 0) | |
384 | (fillarray mpuz-board nil) | |
385 | (if buf (kill-buffer buf))) | |
386 | (mpuz-ask-for-try))) | |
5f7e5584 RS |
387 | |
388 | (defun mpuz-ask-for-try () | |
389 | "Ask for user proposal in puzzle." | |
d93196b3 EZ |
390 | (message "Your try?")) |
391 | ||
392 | (defun mpuz-ding (error) | |
393 | "Dings, unless global variable `mpuz-silent' forbids it." | |
394 | (cond ((eq mpuz-silent t)) | |
395 | ((not mpuz-silent) (ding t)) | |
396 | (error (ding t)))) | |
5f7e5584 RS |
397 | |
398 | (defun mpuz-try-letter () | |
399 | "Propose a digit for a letter in puzzle." | |
400 | (interactive) | |
401 | (if mpuz-in-progress | |
121656e9 | 402 | (let (letter-char digit digit-char) |
1ba983e8 | 403 | (setq letter-char (upcase last-command-event) |
5f7e5584 RS |
404 | digit (mpuz-to-digit (- letter-char ?A))) |
405 | (cond ((mpuz-digit-solved-p digit) | |
d93196b3 EZ |
406 | (message "%c already solved." letter-char) |
407 | (mpuz-ding t)) | |
5f7e5584 | 408 | ((null (aref mpuz-board digit)) |
d93196b3 EZ |
409 | (message "%c does not appear." letter-char) |
410 | (mpuz-ding t)) | |
315b2369 | 411 | ((progn (message "%c = " letter-char) |
5f7e5584 RS |
412 | ;; <char> has been entered. |
413 | ;; Print "<char> =" and | |
414 | ;; read <num> or = <num> | |
315b2369 RS |
415 | (setq digit-char (read-char)) |
416 | (if (eq digit-char ?=) | |
417 | (setq digit-char (read-char))) | |
5f7e5584 | 418 | (or (> digit-char ?9) (< digit-char ?0))) ; bad input |
d93196b3 EZ |
419 | (message "%c = %c" letter-char digit-char) |
420 | (mpuz-ding t)) | |
5f7e5584 RS |
421 | (t |
422 | (mpuz-try-proposal letter-char digit-char)))) | |
ce5a3ac0 | 423 | (if (y-or-n-p "Start a new game? ") |
d93196b3 EZ |
424 | (mpuz-start-new-game) |
425 | (message "OK. I won't.")))) | |
5f7e5584 RS |
426 | |
427 | (defun mpuz-try-proposal (letter-char digit-char) | |
428 | "Propose LETTER-CHAR as code for DIGIT-CHAR." | |
429 | (let* ((letter (- letter-char ?A)) | |
430 | (digit (- digit-char ?0)) | |
121656e9 | 431 | (correct-digit (mpuz-to-digit letter))) |
5f7e5584 | 432 | (cond ((mpuz-digit-solved-p correct-digit) |
7b427043 KH |
433 | (message "%c has already been found." (+ correct-digit ?0))) |
434 | ((mpuz-digit-solved-p digit) | |
435 | (message "%c has already been placed." digit-char)) | |
5f7e5584 | 436 | ((= digit correct-digit) |
d93196b3 EZ |
437 | (message "%c = %c correct!" letter-char digit-char) |
438 | (mpuz-ding nil) | |
439 | (aset mpuz-found-digits digit t) ; Mark digit as solved | |
440 | (and (mpuz-check-all-solved) | |
441 | (mpuz-close-game))) | |
5f7e5584 | 442 | (t ;;; incorrect guess |
d93196b3 EZ |
443 | (message "%c = %c incorrect!" letter-char digit-char) |
444 | (mpuz-ding t) | |
5f7e5584 RS |
445 | (setq mpuz-nb-errors (1+ mpuz-nb-errors)) |
446 | (mpuz-paint-errors))))) | |
447 | ||
5f7e5584 RS |
448 | (defun mpuz-close-game () |
449 | "Housecleaning when puzzle has been solved." | |
450 | (setq mpuz-in-progress nil | |
451 | mpuz-nb-cumulated-errors (+ mpuz-nb-cumulated-errors mpuz-nb-errors) | |
452 | mpuz-nb-completed-games (1+ mpuz-nb-completed-games)) | |
453 | (mpuz-paint-statistics) | |
d93196b3 EZ |
454 | (let ((message (format "Puzzle solved with %d error%s. That's %s" |
455 | mpuz-nb-errors | |
456 | (if (= mpuz-nb-errors 1) "" "s") | |
457 | (cond ((= mpuz-nb-errors 0) "perfect!") | |
458 | ((= mpuz-nb-errors 1) "very good!") | |
459 | ((= mpuz-nb-errors 2) "good.") | |
460 | ((= mpuz-nb-errors 3) "not bad.") | |
461 | ((= mpuz-nb-errors 4) "not too bad...") | |
462 | ((< mpuz-nb-errors 10) "bad!") | |
463 | ((< mpuz-nb-errors 15) "awful.") | |
464 | (t "not serious."))))) | |
274f1353 | 465 | (message "%s" message) |
5f7e5584 | 466 | (sit-for 4) |
ce5a3ac0 | 467 | (if (y-or-n-p (concat message " Start a new game? ")) |
5f7e5584 | 468 | (mpuz-start-new-game) |
d93196b3 EZ |
469 | (message "Good Bye!")))) |
470 | ||
471 | (defun mpuz-solve (&optional row col) | |
472 | "Find solution for autosolving." | |
473 | (mapc (lambda (digit) | |
474 | (or (mpuz-digit-solved-p digit) | |
475 | (if row | |
476 | (not (if col | |
477 | (member (cons row col) (aref mpuz-board digit)) | |
478 | (assq row (aref mpuz-board digit))))) | |
479 | (aset mpuz-trivial-digits digit t))) | |
480 | [0 1 2 3 4 5 6 7 8 9]) | |
481 | t) | |
482 | ||
483 | (defun mpuz-show-solution (row) | |
5f7e5584 | 484 | "Display solution for debugging purposes." |
d93196b3 | 485 | (interactive "P") |
5f7e5584 | 486 | (mpuz-switch-to-window) |
d93196b3 EZ |
487 | (mpuz-solve (if row (* 2 (prefix-numeric-value row)))) |
488 | (mpuz-paint-board) | |
489 | (if (mpuz-check-all-solved) | |
490 | (mpuz-close-game))) | |
5f7e5584 | 491 | |
896546cd RS |
492 | (provide 'mpuz) |
493 | ||
6594deb0 | 494 | ;;; mpuz.el ends here |