Commit | Line | Data |
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6594deb0 ER |
1 | ;;; mpuz.el --- multiplication puzzle for GNU Emacs |
2 | ||
f2e3589a | 3 | ;; Copyright (C) 1990, 2001, 2002, 2003, 2004, 2005, |
2f043267 | 4 | ;; 2006, 2007, 2008 Free Software Foundation, Inc. |
0aba61c5 | 5 | |
2b38b487 | 6 | ;; Author: Philippe Schnoebelen <phs@lsv.ens-cachan.fr> |
d93196b3 | 7 | ;; Overhauled: Daniel Pfeiffer <occitan@esperanto.org> |
84176303 ER |
8 | ;; Keywords: games |
9 | ||
5f7e5584 RS |
10 | ;; This file is part of GNU Emacs. |
11 | ||
b1fc2b50 | 12 | ;; GNU Emacs is free software: you can redistribute it and/or modify |
59243403 | 13 | ;; it under the terms of the GNU General Public License as published by |
b1fc2b50 GM |
14 | ;; the Free Software Foundation, either version 3 of the License, or |
15 | ;; (at your option) any later version. | |
59243403 | 16 | |
5f7e5584 | 17 | ;; GNU Emacs is distributed in the hope that it will be useful, |
59243403 RS |
18 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of |
19 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | ;; GNU General Public License for more details. | |
21 | ||
22 | ;; You should have received a copy of the GNU General Public License | |
b1fc2b50 | 23 | ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. |
5f7e5584 | 24 | |
edbd2f74 ER |
25 | ;;; Commentary: |
26 | ||
d93196b3 EZ |
27 | ;; `M-x mpuz' generates a random multiplication puzzle. This is a |
28 | ;; multiplication example in which each digit has been consistently replaced | |
29 | ;; with some letter. Your job is to reconstruct the original digits. Type | |
30 | ;; `?' while the mode is active for detailed help. | |
edbd2f74 | 31 | |
84176303 ER |
32 | ;;; Code: |
33 | ||
323f7c49 SE |
34 | (defgroup mpuz nil |
35 | "Multiplication puzzle." | |
36 | :prefix "mpuz-" | |
37 | :group 'games) | |
38 | ||
5f7e5584 RS |
39 | (random t) ; randomize |
40 | ||
d93196b3 | 41 | (defcustom mpuz-silent 'error |
8101c2f2 JB |
42 | "*Set this to nil if you want dings on inputs. |
43 | t means never ding, and `error' means only ding on wrong input." | |
d93196b3 EZ |
44 | :type '(choice (const :tag "No" nil) |
45 | (const :tag "Yes" t) | |
46 | (const :tag "If correct" error)) | |
47 | :group 'mpuz) | |
48 | ||
49 | (defcustom mpuz-solve-when-trivial t | |
50 | "*Solve any row that can be trivially calculated from what you've found." | |
323f7c49 SE |
51 | :type 'boolean |
52 | :group 'mpuz) | |
5f7e5584 | 53 | |
d93196b3 EZ |
54 | (defcustom mpuz-allow-double-multiplicator nil |
55 | "*Allow 2nd factors like 33 or 77." | |
56 | :type 'boolean | |
57 | :group 'mpuz) | |
58 | ||
530b0472 | 59 | (defface mpuz-unsolved |
a0db0bbf EZ |
60 | '((((class color)) (:foreground "red1" :bold t)) |
61 | (t (:bold t))) | |
d93196b3 | 62 | "*Face to use for letters to be solved." |
d93196b3 EZ |
63 | :group 'mpuz) |
64 | ||
530b0472 | 65 | (defface mpuz-solved |
a0db0bbf EZ |
66 | '((((class color)) (:foreground "green1" :bold t)) |
67 | (t (:bold t))) | |
d93196b3 | 68 | "*Face to use for solved digits." |
d93196b3 EZ |
69 | :group 'mpuz) |
70 | ||
530b0472 | 71 | (defface mpuz-trivial |
a0db0bbf EZ |
72 | '((((class color)) (:foreground "blue" :bold t)) |
73 | (t (:bold t))) | |
d93196b3 | 74 | "*Face to use for trivial digits solved for you." |
d93196b3 EZ |
75 | :group 'mpuz) |
76 | ||
530b0472 | 77 | (defface mpuz-text |
a0db0bbf | 78 | '((t (:inherit variable-pitch))) |
d93196b3 | 79 | "*Face to use for text on right." |
d93196b3 | 80 | :group 'mpuz) |
5f7e5584 RS |
81 | |
82 | \f | |
83 | ;; Mpuz mode and keymaps | |
84 | ;;---------------------- | |
323f7c49 SE |
85 | (defcustom mpuz-mode-hook nil |
86 | "Hook to run upon entry to mpuz." | |
87 | :type 'hook | |
88 | :group 'mpuz) | |
5f7e5584 RS |
89 | |
90 | (defvar mpuz-mode-map nil | |
91 | "Local keymap to use in Mult Puzzle.") | |
92 | ||
5f7e5584 | 93 | (if mpuz-mode-map nil |
d93196b3 EZ |
94 | (setq mpuz-mode-map (make-sparse-keymap)) |
95 | (define-key mpuz-mode-map "a" 'mpuz-try-letter) | |
96 | (define-key mpuz-mode-map "b" 'mpuz-try-letter) | |
97 | (define-key mpuz-mode-map "c" 'mpuz-try-letter) | |
98 | (define-key mpuz-mode-map "d" 'mpuz-try-letter) | |
99 | (define-key mpuz-mode-map "e" 'mpuz-try-letter) | |
100 | (define-key mpuz-mode-map "f" 'mpuz-try-letter) | |
101 | (define-key mpuz-mode-map "g" 'mpuz-try-letter) | |
102 | (define-key mpuz-mode-map "h" 'mpuz-try-letter) | |
103 | (define-key mpuz-mode-map "i" 'mpuz-try-letter) | |
104 | (define-key mpuz-mode-map "j" 'mpuz-try-letter) | |
105 | (define-key mpuz-mode-map "A" 'mpuz-try-letter) | |
106 | (define-key mpuz-mode-map "B" 'mpuz-try-letter) | |
107 | (define-key mpuz-mode-map "C" 'mpuz-try-letter) | |
108 | (define-key mpuz-mode-map "D" 'mpuz-try-letter) | |
109 | (define-key mpuz-mode-map "E" 'mpuz-try-letter) | |
110 | (define-key mpuz-mode-map "F" 'mpuz-try-letter) | |
111 | (define-key mpuz-mode-map "G" 'mpuz-try-letter) | |
112 | (define-key mpuz-mode-map "H" 'mpuz-try-letter) | |
113 | (define-key mpuz-mode-map "I" 'mpuz-try-letter) | |
114 | (define-key mpuz-mode-map "J" 'mpuz-try-letter) | |
115 | (define-key mpuz-mode-map "\C-g" 'mpuz-offer-abort) | |
116 | (define-key mpuz-mode-map "?" 'describe-mode)) | |
5f7e5584 | 117 | |
5f7e5584 | 118 | (defun mpuz-mode () |
58c43274 | 119 | "Multiplication puzzle mode. |
5f7e5584 | 120 | |
a0963566 | 121 | You have to guess which letters stand for which digits in the |
58c43274 | 122 | multiplication displayed inside the `*Mult Puzzle*' buffer. |
5f7e5584 | 123 | |
58c43274 | 124 | You may enter a guess for a letter's value by typing first the letter, |
d93196b3 | 125 | then the digit. Thus, to guess that A=3, type `A 3'. |
5f7e5584 | 126 | |
58c43274 RS |
127 | To leave the game to do other editing work, just switch buffers. |
128 | Then you may resume the game with M-x mpuz. | |
129 | You may abort a game by typing \\<mpuz-mode-map>\\[mpuz-offer-abort]." | |
5f7e5584 | 130 | (interactive) |
c83c9654 | 131 | (kill-all-local-variables) |
5f7e5584 | 132 | (setq major-mode 'mpuz-mode |
d93196b3 EZ |
133 | mode-name "Mult Puzzle" |
134 | tab-width 30) | |
5f7e5584 | 135 | (use-local-map mpuz-mode-map) |
c83c9654 | 136 | (run-mode-hooks 'mpuz-mode-hook)) |
5f7e5584 RS |
137 | |
138 | \f | |
139 | ;; Some variables for statistics | |
140 | ;;------------------------------ | |
141 | (defvar mpuz-nb-errors 0 | |
a0963566 | 142 | "Number of errors made in current game.") |
5f7e5584 RS |
143 | |
144 | (defvar mpuz-nb-completed-games 0 | |
a0963566 | 145 | "Number of games completed.") |
5f7e5584 RS |
146 | |
147 | (defvar mpuz-nb-cumulated-errors 0 | |
148 | "Number of errors made in previous games.") | |
149 | ||
150 | ||
151 | ;; Some variables for game tracking | |
152 | ;;--------------------------------- | |
153 | (defvar mpuz-in-progress nil | |
154 | "True if a game is currently in progress.") | |
155 | ||
d93196b3 | 156 | (defvar mpuz-found-digits (make-bool-vector 10 nil) |
5f7e5584 RS |
157 | "A vector recording which digits have been decrypted.") |
158 | ||
d93196b3 EZ |
159 | (defvar mpuz-trivial-digits (make-bool-vector 10 nil) |
160 | "A vector recording which digits have been solved for you.") | |
161 | ||
5f7e5584 | 162 | (defmacro mpuz-digit-solved-p (digit) |
d93196b3 EZ |
163 | `(or (aref mpuz-found-digits ,digit) |
164 | (aref mpuz-trivial-digits ,digit))) | |
5f7e5584 RS |
165 | |
166 | ||
167 | ;; A puzzle uses a permutation of [0..9] into itself. | |
168 | ;; We use both the permutation and its inverse. | |
169 | ;;--------------------------------------------------- | |
170 | (defvar mpuz-digit-to-letter (make-vector 10 0) | |
171 | "A permutation from [0..9] to [0..9].") | |
172 | ||
173 | (defvar mpuz-letter-to-digit (make-vector 10 0) | |
174 | "The inverse of mpuz-digit-to-letter.") | |
175 | ||
176 | (defmacro mpuz-to-digit (letter) | |
177 | (list 'aref 'mpuz-letter-to-digit letter)) | |
178 | ||
179 | (defmacro mpuz-to-letter (digit) | |
180 | (list 'aref 'mpuz-digit-to-letter digit)) | |
181 | ||
182 | (defun mpuz-build-random-perm () | |
183 | "Initialize puzzle coding with a random permutation." | |
184 | (let ((letters (list 0 1 2 3 4 5 6 7 8 9)) ; new cons cells, because of delq | |
185 | (index 10) | |
186 | elem) | |
187 | (while letters | |
c9575b25 | 188 | (setq elem (nth (random index) letters) |
5f7e5584 RS |
189 | letters (delq elem letters) |
190 | index (1- index)) | |
191 | (aset mpuz-digit-to-letter index elem) | |
192 | (aset mpuz-letter-to-digit elem index)))) | |
193 | ||
194 | ||
eb8c3be9 | 195 | ;; A puzzle also uses a board displaying a multiplication. |
5f7e5584 RS |
196 | ;; Every digit appears in the board, crypted or not. |
197 | ;;------------------------------------------------------ | |
198 | (defvar mpuz-board (make-vector 10 nil) | |
f582564f | 199 | "The board associates to any digit the list of squares where it appears.") |
5f7e5584 | 200 | |
d93196b3 EZ |
201 | (defun mpuz-put-number-on-board (number row &rest l) |
202 | "Put (last digit of) NUMBER on ROW and COLUMNS of the puzzle board." | |
203 | (let (digit) | |
204 | (while l | |
205 | (setq digit (% number 10) | |
206 | number (/ number 10)) | |
207 | (aset mpuz-board digit `((,row . ,(car l)) ,@(aref mpuz-board digit))) | |
208 | (setq l (cdr l))))) | |
5f7e5584 | 209 | |
d93196b3 | 210 | (defun mpuz-check-all-solved (&optional row col) |
5f7e5584 | 211 | "Check whether all digits have been solved. Return t if yes." |
d93196b3 EZ |
212 | (catch 'solved |
213 | (let (A B1 B2 C D E squares) | |
214 | (and mpuz-solve-when-trivial | |
215 | (not row) | |
216 | (while | |
217 | (cond ((or (and (setq B1 (or B1 (mpuz-check-all-solved 4 7)) | |
218 | B2 (or B2 (mpuz-check-all-solved 4 9)) | |
219 | E (or E (mpuz-check-all-solved 10)) | |
220 | A (or A (mpuz-check-all-solved 2))) | |
221 | B1 B2) | |
222 | (and E (or A (and B1 B2)))) | |
223 | (mpuz-solve) | |
224 | (mpuz-paint-board) | |
225 | (throw 'solved t)) | |
226 | ((and (setq D (or D (mpuz-check-all-solved 8)) | |
227 | C (or C (mpuz-check-all-solved 6))) | |
228 | D (not E)) | |
229 | (mpuz-solve 10)) | |
230 | ((and E (not (eq C D))) | |
231 | (mpuz-solve (if D 6 8))) | |
232 | ((and A (not (eq B2 C))) | |
233 | (mpuz-solve (if C 4 6) (if C 9))) | |
234 | ((and A (not (eq B1 D))) | |
235 | (mpuz-solve (if D 4 8) (if D 7))) | |
236 | ((and (not A) (or (and B2 C) (and B1 D))) | |
237 | (mpuz-solve 2))))) | |
238 | (mpuz-paint-board) | |
239 | (mapc (lambda (digit) | |
240 | (and (not (mpuz-digit-solved-p digit)) ; unsolved | |
241 | (setq squares (aref mpuz-board digit)) | |
242 | (if row | |
243 | (if col | |
244 | (member (cons row col) squares) | |
245 | (assq row squares)) | |
246 | squares) ; and appearing in the puzzle! | |
247 | (throw 'solved nil))) | |
248 | [0 1 2 3 4 5 6 7 8 9])) | |
5f7e5584 RS |
249 | t)) |
250 | ||
251 | ||
252 | ;; To build a puzzle, we take two random numbers and multiply them. | |
253 | ;; We also take a random permutation for encryption. | |
254 | ;; The random numbers are only use to see which digit appears in which square | |
255 | ;; of the board. Everything is stored in individual squares. | |
256 | ;;--------------------------------------------------------------------------- | |
257 | (defun mpuz-random-puzzle () | |
258 | "Draw random values to be multiplied in a puzzle." | |
259 | (mpuz-build-random-perm) | |
260 | (fillarray mpuz-board nil) ; erase the board | |
d93196b3 EZ |
261 | ;; A,B,C,D & E, are the five rows of our multiplication. |
262 | ;; Choose random values, discarding cases with leading zeros in C or D. | |
a87c4c30 DK |
263 | (let* ((A (if mpuz-allow-double-multiplicator (+ 112 (random 888)) |
264 | (+ 125 (random 875)))) | |
265 | (min (1+ (/ 999 A))) | |
d93196b3 EZ |
266 | (B1 (+ min (random (- 10 min)))) |
267 | B2 C D E) | |
268 | (while (if (= B1 (setq B2 (+ min (random (- 10 min))))) | |
269 | (not mpuz-allow-double-multiplicator))) | |
270 | (setq C (* A B2) | |
271 | D (* A B1) | |
272 | E (+ C (* D 10))) | |
a7acbbe4 | 273 | ;; Individual digits are now put on their respective squares. |
d93196b3 EZ |
274 | ;; [NB: A square is a pair (row . column) of the screen.] |
275 | (mpuz-put-number-on-board A 2 9 7 5) | |
276 | (mpuz-put-number-on-board (+ (* B1 10) B2) 4 9 7) | |
277 | (mpuz-put-number-on-board C 6 9 7 5 3) | |
278 | (mpuz-put-number-on-board D 8 7 5 3 1) | |
279 | (mpuz-put-number-on-board E 10 9 7 5 3 1))) | |
5f7e5584 RS |
280 | \f |
281 | ;; Display | |
282 | ;;-------- | |
283 | (defconst mpuz-framework | |
284 | " | |
285 | . . . | |
d93196b3 | 286 | Number of errors (this game): 0 |
5f7e5584 RS |
287 | x . . |
288 | ------- | |
289 | . . . . | |
d93196b3 | 290 | Number of completed games: 0 |
5f7e5584 | 291 | . . . . |
d93196b3 | 292 | --------- Average number of errors: 0.00 |
5f7e5584 RS |
293 | . . . . ." |
294 | "The general picture of the puzzle screen, as a string.") | |
295 | ||
296 | (defun mpuz-create-buffer () | |
297 | "Create (or recreate) the puzzle buffer. Return it." | |
d93196b3 | 298 | (let ((buf (get-buffer-create "*Mult Puzzle*")) |
530b0472 | 299 | (face '(face mpuz-text)) |
d93196b3 | 300 | buffer-read-only) |
5f7e5584 | 301 | (save-excursion |
d93196b3 EZ |
302 | (set-buffer buf) |
303 | (erase-buffer) | |
304 | (insert mpuz-framework) | |
305 | (set-text-properties 13 42 face) | |
306 | (set-text-properties 79 105 face) | |
307 | (set-text-properties 128 153 face) | |
308 | (mpuz-paint-board) | |
309 | (mpuz-paint-errors) | |
310 | (mpuz-paint-statistics)) | |
311 | buf)) | |
312 | ||
313 | (defun mpuz-paint-number (n &optional eol words) | |
314 | (end-of-line eol) | |
315 | (let (buffer-read-only) | |
316 | (delete-region (point) | |
317 | (progn (backward-word (or words 1)) (point))) | |
318 | (insert n))) | |
5f7e5584 RS |
319 | |
320 | (defun mpuz-paint-errors () | |
321 | "Paint error count on the puzzle screen." | |
322 | (mpuz-switch-to-window) | |
d93196b3 EZ |
323 | (goto-line 3) |
324 | (mpuz-paint-number (prin1-to-string mpuz-nb-errors))) | |
5f7e5584 RS |
325 | |
326 | (defun mpuz-paint-statistics () | |
327 | "Paint statistics about previous games on the puzzle screen." | |
d93196b3 EZ |
328 | (goto-line 7) |
329 | (mpuz-paint-number (prin1-to-string mpuz-nb-completed-games)) | |
330 | (mpuz-paint-number | |
331 | (format "%.2f" | |
332 | (if (zerop mpuz-nb-completed-games) | |
333 | 0 | |
334 | (/ (+ 0.0 mpuz-nb-cumulated-errors) | |
335 | mpuz-nb-completed-games))) | |
336 | 3 2)) | |
5f7e5584 RS |
337 | |
338 | (defun mpuz-paint-board () | |
339 | "Paint board situation on the puzzle screen." | |
340 | (mpuz-switch-to-window) | |
d93196b3 | 341 | (mapc 'mpuz-paint-digit [0 1 2 3 4 5 6 7 8 9]) |
5f7e5584 RS |
342 | (goto-char (point-min))) |
343 | ||
344 | (defun mpuz-paint-digit (digit) | |
345 | "Paint all occurrences of DIGIT on the puzzle board." | |
5f7e5584 RS |
346 | (let ((char (if (mpuz-digit-solved-p digit) |
347 | (+ digit ?0) | |
d93196b3 EZ |
348 | (+ (mpuz-to-letter digit) ?A))) |
349 | (face `(face | |
530b0472 MB |
350 | ,(cond ((aref mpuz-trivial-digits digit) 'mpuz-trivial) |
351 | ((aref mpuz-found-digits digit) 'mpuz-solved) | |
352 | ('mpuz-unsolved)))) | |
d93196b3 EZ |
353 | buffer-read-only) |
354 | (mapc (lambda (square) | |
355 | (goto-line (car square)) ; line before column! | |
356 | (move-to-column (cdr square)) | |
357 | (insert char) | |
358 | (set-text-properties (1- (point)) (point) face) | |
359 | (delete-char 1)) | |
360 | (aref mpuz-board digit)))) | |
5f7e5584 RS |
361 | |
362 | (defun mpuz-get-buffer () | |
363 | "Get the puzzle buffer if it exists." | |
364 | (get-buffer "*Mult Puzzle*")) | |
365 | ||
366 | (defun mpuz-switch-to-window () | |
367 | "Find or create the Mult-Puzzle buffer, and display it." | |
d93196b3 EZ |
368 | (let ((buf (mpuz-get-buffer))) |
369 | (or buf (setq buf (mpuz-create-buffer))) | |
370 | (switch-to-buffer buf) | |
d7f5c8f9 | 371 | (setq buffer-read-only t) |
5f7e5584 RS |
372 | (mpuz-mode))) |
373 | ||
374 | \f | |
375 | ;; Game control | |
376 | ;;------------- | |
5f7e5584 RS |
377 | (defun mpuz-start-new-game () |
378 | "Start a new puzzle." | |
379 | (message "Here we go...") | |
380 | (setq mpuz-nb-errors 0 | |
381 | mpuz-in-progress t) | |
382 | (fillarray mpuz-found-digits nil) ; initialize mpuz-found-digits | |
d93196b3 | 383 | (fillarray mpuz-trivial-digits nil) |
5f7e5584 RS |
384 | (mpuz-random-puzzle) |
385 | (mpuz-switch-to-window) | |
386 | (mpuz-paint-board) | |
387 | (mpuz-paint-errors) | |
388 | (mpuz-ask-for-try)) | |
389 | ||
58c43274 RS |
390 | ;;;###autoload |
391 | (defun mpuz () | |
5f7e5584 RS |
392 | "Multiplication puzzle with GNU Emacs." |
393 | ;; Main entry point | |
394 | (interactive) | |
395 | (mpuz-switch-to-window) | |
396 | (if mpuz-in-progress | |
397 | (mpuz-offer-abort) | |
d93196b3 | 398 | (mpuz-start-new-game))) |
5f7e5584 RS |
399 | |
400 | (defun mpuz-offer-abort () | |
401 | "Ask if user wants to abort current puzzle." | |
402 | (interactive) | |
ce5a3ac0 | 403 | (if (y-or-n-p "Abort game? ") |
d93196b3 EZ |
404 | (let ((buf (mpuz-get-buffer))) |
405 | (message "Mult Puzzle aborted.") | |
406 | (setq mpuz-in-progress nil | |
407 | mpuz-nb-errors 0) | |
408 | (fillarray mpuz-board nil) | |
409 | (if buf (kill-buffer buf))) | |
410 | (mpuz-ask-for-try))) | |
5f7e5584 RS |
411 | |
412 | (defun mpuz-ask-for-try () | |
413 | "Ask for user proposal in puzzle." | |
d93196b3 EZ |
414 | (message "Your try?")) |
415 | ||
416 | (defun mpuz-ding (error) | |
417 | "Dings, unless global variable `mpuz-silent' forbids it." | |
418 | (cond ((eq mpuz-silent t)) | |
419 | ((not mpuz-silent) (ding t)) | |
420 | (error (ding t)))) | |
5f7e5584 RS |
421 | |
422 | (defun mpuz-try-letter () | |
423 | "Propose a digit for a letter in puzzle." | |
424 | (interactive) | |
425 | (if mpuz-in-progress | |
426 | (let (letter-char digit digit-char message) | |
315b2369 | 427 | (setq letter-char (upcase last-command-char) |
5f7e5584 RS |
428 | digit (mpuz-to-digit (- letter-char ?A))) |
429 | (cond ((mpuz-digit-solved-p digit) | |
d93196b3 EZ |
430 | (message "%c already solved." letter-char) |
431 | (mpuz-ding t)) | |
5f7e5584 | 432 | ((null (aref mpuz-board digit)) |
d93196b3 EZ |
433 | (message "%c does not appear." letter-char) |
434 | (mpuz-ding t)) | |
315b2369 | 435 | ((progn (message "%c = " letter-char) |
5f7e5584 RS |
436 | ;; <char> has been entered. |
437 | ;; Print "<char> =" and | |
438 | ;; read <num> or = <num> | |
315b2369 RS |
439 | (setq digit-char (read-char)) |
440 | (if (eq digit-char ?=) | |
441 | (setq digit-char (read-char))) | |
5f7e5584 | 442 | (or (> digit-char ?9) (< digit-char ?0))) ; bad input |
d93196b3 EZ |
443 | (message "%c = %c" letter-char digit-char) |
444 | (mpuz-ding t)) | |
5f7e5584 RS |
445 | (t |
446 | (mpuz-try-proposal letter-char digit-char)))) | |
ce5a3ac0 | 447 | (if (y-or-n-p "Start a new game? ") |
d93196b3 EZ |
448 | (mpuz-start-new-game) |
449 | (message "OK. I won't.")))) | |
5f7e5584 RS |
450 | |
451 | (defun mpuz-try-proposal (letter-char digit-char) | |
452 | "Propose LETTER-CHAR as code for DIGIT-CHAR." | |
453 | (let* ((letter (- letter-char ?A)) | |
454 | (digit (- digit-char ?0)) | |
d93196b3 EZ |
455 | (correct-digit (mpuz-to-digit letter)) |
456 | (game mpuz-nb-completed-games)) | |
5f7e5584 | 457 | (cond ((mpuz-digit-solved-p correct-digit) |
7b427043 KH |
458 | (message "%c has already been found." (+ correct-digit ?0))) |
459 | ((mpuz-digit-solved-p digit) | |
460 | (message "%c has already been placed." digit-char)) | |
5f7e5584 | 461 | ((= digit correct-digit) |
d93196b3 EZ |
462 | (message "%c = %c correct!" letter-char digit-char) |
463 | (mpuz-ding nil) | |
464 | (aset mpuz-found-digits digit t) ; Mark digit as solved | |
465 | (and (mpuz-check-all-solved) | |
466 | (mpuz-close-game))) | |
5f7e5584 | 467 | (t ;;; incorrect guess |
d93196b3 EZ |
468 | (message "%c = %c incorrect!" letter-char digit-char) |
469 | (mpuz-ding t) | |
5f7e5584 RS |
470 | (setq mpuz-nb-errors (1+ mpuz-nb-errors)) |
471 | (mpuz-paint-errors))))) | |
472 | ||
5f7e5584 RS |
473 | (defun mpuz-close-game () |
474 | "Housecleaning when puzzle has been solved." | |
475 | (setq mpuz-in-progress nil | |
476 | mpuz-nb-cumulated-errors (+ mpuz-nb-cumulated-errors mpuz-nb-errors) | |
477 | mpuz-nb-completed-games (1+ mpuz-nb-completed-games)) | |
478 | (mpuz-paint-statistics) | |
d93196b3 EZ |
479 | (let ((message (format "Puzzle solved with %d error%s. That's %s" |
480 | mpuz-nb-errors | |
481 | (if (= mpuz-nb-errors 1) "" "s") | |
482 | (cond ((= mpuz-nb-errors 0) "perfect!") | |
483 | ((= mpuz-nb-errors 1) "very good!") | |
484 | ((= mpuz-nb-errors 2) "good.") | |
485 | ((= mpuz-nb-errors 3) "not bad.") | |
486 | ((= mpuz-nb-errors 4) "not too bad...") | |
487 | ((< mpuz-nb-errors 10) "bad!") | |
488 | ((< mpuz-nb-errors 15) "awful.") | |
489 | (t "not serious."))))) | |
274f1353 | 490 | (message "%s" message) |
5f7e5584 | 491 | (sit-for 4) |
ce5a3ac0 | 492 | (if (y-or-n-p (concat message " Start a new game? ")) |
5f7e5584 | 493 | (mpuz-start-new-game) |
d93196b3 EZ |
494 | (message "Good Bye!")))) |
495 | ||
496 | (defun mpuz-solve (&optional row col) | |
497 | "Find solution for autosolving." | |
498 | (mapc (lambda (digit) | |
499 | (or (mpuz-digit-solved-p digit) | |
500 | (if row | |
501 | (not (if col | |
502 | (member (cons row col) (aref mpuz-board digit)) | |
503 | (assq row (aref mpuz-board digit))))) | |
504 | (aset mpuz-trivial-digits digit t))) | |
505 | [0 1 2 3 4 5 6 7 8 9]) | |
506 | t) | |
507 | ||
508 | (defun mpuz-show-solution (row) | |
5f7e5584 | 509 | "Display solution for debugging purposes." |
d93196b3 | 510 | (interactive "P") |
5f7e5584 | 511 | (mpuz-switch-to-window) |
d93196b3 EZ |
512 | (mpuz-solve (if row (* 2 (prefix-numeric-value row)))) |
513 | (mpuz-paint-board) | |
514 | (if (mpuz-check-all-solved) | |
515 | (mpuz-close-game))) | |
5f7e5584 | 516 | |
896546cd RS |
517 | (provide 'mpuz) |
518 | ||
cbee283d | 519 | ;; arch-tag: 2781d6ba-89e7-43b5-85c7-5d3a2e73feb1 |
6594deb0 | 520 | ;;; mpuz.el ends here |