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6594deb0 ER |
1 | ;;; mpuz.el --- multiplication puzzle for GNU Emacs |
2 | ||
d93196b3 | 3 | ;; Copyright (C) 1990, 2002 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 | ||
59243403 RS |
11 | ;; GNU Emacs is free software; you can redistribute it and/or modify |
12 | ;; it under the terms of the GNU General Public License as published by | |
13 | ;; the Free Software Foundation; either version 2, or (at your option) | |
14 | ;; any later version. | |
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 | |
b578f267 EN |
22 | ;; along with GNU Emacs; see the file COPYING. If not, write to the |
23 | ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
24 | ;; Boston, MA 02111-1307, USA. | |
5f7e5584 | 25 | |
edbd2f74 ER |
26 | ;;; Commentary: |
27 | ||
d93196b3 EZ |
28 | ;; `M-x mpuz' generates a random multiplication puzzle. This is a |
29 | ;; multiplication example in which each digit has been consistently replaced | |
30 | ;; with some letter. Your job is to reconstruct the original digits. Type | |
31 | ;; `?' while the mode is active for detailed help. | |
edbd2f74 | 32 | |
84176303 ER |
33 | ;;; Code: |
34 | ||
323f7c49 SE |
35 | (defgroup mpuz nil |
36 | "Multiplication puzzle." | |
37 | :prefix "mpuz-" | |
38 | :group 'games) | |
39 | ||
5f7e5584 RS |
40 | (random t) ; randomize |
41 | ||
d93196b3 | 42 | (defcustom mpuz-silent 'error |
8101c2f2 JB |
43 | "*Set this to nil if you want dings on inputs. |
44 | t means never ding, and `error' means only ding on wrong input." | |
d93196b3 EZ |
45 | :type '(choice (const :tag "No" nil) |
46 | (const :tag "Yes" t) | |
47 | (const :tag "If correct" error)) | |
48 | :group 'mpuz) | |
49 | ||
50 | (defcustom mpuz-solve-when-trivial t | |
51 | "*Solve any row that can be trivially calculated from what you've found." | |
323f7c49 SE |
52 | :type 'boolean |
53 | :group 'mpuz) | |
5f7e5584 | 54 | |
d93196b3 EZ |
55 | (defcustom mpuz-allow-double-multiplicator nil |
56 | "*Allow 2nd factors like 33 or 77." | |
57 | :type 'boolean | |
58 | :group 'mpuz) | |
59 | ||
a0db0bbf EZ |
60 | (defface mpuz-unsolved-face |
61 | '((((class color)) (:foreground "red1" :bold t)) | |
62 | (t (:bold t))) | |
d93196b3 | 63 | "*Face to use for letters to be solved." |
d93196b3 EZ |
64 | :group 'mpuz) |
65 | ||
a0db0bbf EZ |
66 | (defface mpuz-solved-face |
67 | '((((class color)) (:foreground "green1" :bold t)) | |
68 | (t (:bold t))) | |
d93196b3 | 69 | "*Face to use for solved digits." |
d93196b3 EZ |
70 | :group 'mpuz) |
71 | ||
a0db0bbf EZ |
72 | (defface mpuz-trivial-face |
73 | '((((class color)) (:foreground "blue" :bold t)) | |
74 | (t (:bold t))) | |
d93196b3 | 75 | "*Face to use for trivial digits solved for you." |
d93196b3 EZ |
76 | :group 'mpuz) |
77 | ||
a0db0bbf EZ |
78 | (defface mpuz-text-face |
79 | '((t (:inherit variable-pitch))) | |
d93196b3 | 80 | "*Face to use for text on right." |
d93196b3 | 81 | :group 'mpuz) |
5f7e5584 RS |
82 | |
83 | \f | |
84 | ;; Mpuz mode and keymaps | |
85 | ;;---------------------- | |
323f7c49 SE |
86 | (defcustom mpuz-mode-hook nil |
87 | "Hook to run upon entry to mpuz." | |
88 | :type 'hook | |
89 | :group 'mpuz) | |
5f7e5584 RS |
90 | |
91 | (defvar mpuz-mode-map nil | |
92 | "Local keymap to use in Mult Puzzle.") | |
93 | ||
5f7e5584 | 94 | (if mpuz-mode-map nil |
d93196b3 EZ |
95 | (setq mpuz-mode-map (make-sparse-keymap)) |
96 | (define-key mpuz-mode-map "a" 'mpuz-try-letter) | |
97 | (define-key mpuz-mode-map "b" 'mpuz-try-letter) | |
98 | (define-key mpuz-mode-map "c" 'mpuz-try-letter) | |
99 | (define-key mpuz-mode-map "d" 'mpuz-try-letter) | |
100 | (define-key mpuz-mode-map "e" 'mpuz-try-letter) | |
101 | (define-key mpuz-mode-map "f" 'mpuz-try-letter) | |
102 | (define-key mpuz-mode-map "g" 'mpuz-try-letter) | |
103 | (define-key mpuz-mode-map "h" 'mpuz-try-letter) | |
104 | (define-key mpuz-mode-map "i" 'mpuz-try-letter) | |
105 | (define-key mpuz-mode-map "j" 'mpuz-try-letter) | |
106 | (define-key mpuz-mode-map "A" 'mpuz-try-letter) | |
107 | (define-key mpuz-mode-map "B" 'mpuz-try-letter) | |
108 | (define-key mpuz-mode-map "C" 'mpuz-try-letter) | |
109 | (define-key mpuz-mode-map "D" 'mpuz-try-letter) | |
110 | (define-key mpuz-mode-map "E" 'mpuz-try-letter) | |
111 | (define-key mpuz-mode-map "F" 'mpuz-try-letter) | |
112 | (define-key mpuz-mode-map "G" 'mpuz-try-letter) | |
113 | (define-key mpuz-mode-map "H" 'mpuz-try-letter) | |
114 | (define-key mpuz-mode-map "I" 'mpuz-try-letter) | |
115 | (define-key mpuz-mode-map "J" 'mpuz-try-letter) | |
116 | (define-key mpuz-mode-map "\C-g" 'mpuz-offer-abort) | |
117 | (define-key mpuz-mode-map "?" 'describe-mode)) | |
5f7e5584 | 118 | |
5f7e5584 | 119 | (defun mpuz-mode () |
58c43274 | 120 | "Multiplication puzzle mode. |
5f7e5584 | 121 | |
a0963566 | 122 | You have to guess which letters stand for which digits in the |
58c43274 | 123 | multiplication displayed inside the `*Mult Puzzle*' buffer. |
5f7e5584 | 124 | |
58c43274 | 125 | You may enter a guess for a letter's value by typing first the letter, |
d93196b3 | 126 | then the digit. Thus, to guess that A=3, type `A 3'. |
5f7e5584 | 127 | |
58c43274 RS |
128 | To leave the game to do other editing work, just switch buffers. |
129 | Then you may resume the game with M-x mpuz. | |
130 | You may abort a game by typing \\<mpuz-mode-map>\\[mpuz-offer-abort]." | |
5f7e5584 RS |
131 | (interactive) |
132 | (setq major-mode 'mpuz-mode | |
d93196b3 EZ |
133 | mode-name "Mult Puzzle" |
134 | tab-width 30) | |
5f7e5584 RS |
135 | (use-local-map mpuz-mode-map) |
136 | (run-hooks 'mpuz-mode-hook)) | |
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. | |
263 | (let* ((A (+ 112 (random 888))) | |
264 | (min (1+ (/ 1000 A))) | |
265 | (B1 (+ min (random (- 10 min)))) | |
266 | B2 C D E) | |
267 | (while (if (= B1 (setq B2 (+ min (random (- 10 min))))) | |
268 | (not mpuz-allow-double-multiplicator))) | |
269 | (setq C (* A B2) | |
270 | D (* A B1) | |
271 | E (+ C (* D 10))) | |
a7acbbe4 | 272 | ;; Individual digits are now put on their respective squares. |
d93196b3 EZ |
273 | ;; [NB: A square is a pair (row . column) of the screen.] |
274 | (mpuz-put-number-on-board A 2 9 7 5) | |
275 | (mpuz-put-number-on-board (+ (* B1 10) B2) 4 9 7) | |
276 | (mpuz-put-number-on-board C 6 9 7 5 3) | |
277 | (mpuz-put-number-on-board D 8 7 5 3 1) | |
278 | (mpuz-put-number-on-board E 10 9 7 5 3 1))) | |
5f7e5584 RS |
279 | \f |
280 | ;; Display | |
281 | ;;-------- | |
282 | (defconst mpuz-framework | |
283 | " | |
284 | . . . | |
d93196b3 | 285 | Number of errors (this game): 0 |
5f7e5584 RS |
286 | x . . |
287 | ------- | |
288 | . . . . | |
d93196b3 | 289 | Number of completed games: 0 |
5f7e5584 | 290 | . . . . |
d93196b3 | 291 | --------- Average number of errors: 0.00 |
5f7e5584 RS |
292 | . . . . ." |
293 | "The general picture of the puzzle screen, as a string.") | |
294 | ||
295 | (defun mpuz-create-buffer () | |
296 | "Create (or recreate) the puzzle buffer. Return it." | |
d93196b3 | 297 | (let ((buf (get-buffer-create "*Mult Puzzle*")) |
a0db0bbf | 298 | (face '(face mpuz-text-face)) |
d93196b3 | 299 | buffer-read-only) |
5f7e5584 | 300 | (save-excursion |
d93196b3 EZ |
301 | (set-buffer buf) |
302 | (erase-buffer) | |
303 | (insert mpuz-framework) | |
304 | (set-text-properties 13 42 face) | |
305 | (set-text-properties 79 105 face) | |
306 | (set-text-properties 128 153 face) | |
307 | (mpuz-paint-board) | |
308 | (mpuz-paint-errors) | |
309 | (mpuz-paint-statistics)) | |
310 | buf)) | |
311 | ||
312 | (defun mpuz-paint-number (n &optional eol words) | |
313 | (end-of-line eol) | |
314 | (let (buffer-read-only) | |
315 | (delete-region (point) | |
316 | (progn (backward-word (or words 1)) (point))) | |
317 | (insert n))) | |
5f7e5584 RS |
318 | |
319 | (defun mpuz-paint-errors () | |
320 | "Paint error count on the puzzle screen." | |
321 | (mpuz-switch-to-window) | |
d93196b3 EZ |
322 | (goto-line 3) |
323 | (mpuz-paint-number (prin1-to-string mpuz-nb-errors))) | |
5f7e5584 RS |
324 | |
325 | (defun mpuz-paint-statistics () | |
326 | "Paint statistics about previous games on the puzzle screen." | |
d93196b3 EZ |
327 | (goto-line 7) |
328 | (mpuz-paint-number (prin1-to-string mpuz-nb-completed-games)) | |
329 | (mpuz-paint-number | |
330 | (format "%.2f" | |
331 | (if (zerop mpuz-nb-completed-games) | |
332 | 0 | |
333 | (/ (+ 0.0 mpuz-nb-cumulated-errors) | |
334 | mpuz-nb-completed-games))) | |
335 | 3 2)) | |
5f7e5584 RS |
336 | |
337 | (defun mpuz-paint-board () | |
338 | "Paint board situation on the puzzle screen." | |
339 | (mpuz-switch-to-window) | |
d93196b3 | 340 | (mapc 'mpuz-paint-digit [0 1 2 3 4 5 6 7 8 9]) |
5f7e5584 RS |
341 | (goto-char (point-min))) |
342 | ||
343 | (defun mpuz-paint-digit (digit) | |
344 | "Paint all occurrences of DIGIT on the puzzle board." | |
5f7e5584 RS |
345 | (let ((char (if (mpuz-digit-solved-p digit) |
346 | (+ digit ?0) | |
d93196b3 EZ |
347 | (+ (mpuz-to-letter digit) ?A))) |
348 | (face `(face | |
a0db0bbf EZ |
349 | ,(cond ((aref mpuz-trivial-digits digit) 'mpuz-trivial-face) |
350 | ((aref mpuz-found-digits digit) 'mpuz-solved-face) | |
351 | ('mpuz-unsolved-face)))) | |
d93196b3 EZ |
352 | buffer-read-only) |
353 | (mapc (lambda (square) | |
354 | (goto-line (car square)) ; line before column! | |
355 | (move-to-column (cdr square)) | |
356 | (insert char) | |
357 | (set-text-properties (1- (point)) (point) face) | |
358 | (delete-char 1)) | |
359 | (aref mpuz-board digit)))) | |
5f7e5584 RS |
360 | |
361 | (defun mpuz-get-buffer () | |
362 | "Get the puzzle buffer if it exists." | |
363 | (get-buffer "*Mult Puzzle*")) | |
364 | ||
365 | (defun mpuz-switch-to-window () | |
366 | "Find or create the Mult-Puzzle buffer, and display it." | |
d93196b3 EZ |
367 | (let ((buf (mpuz-get-buffer))) |
368 | (or buf (setq buf (mpuz-create-buffer))) | |
369 | (switch-to-buffer buf) | |
d7f5c8f9 | 370 | (setq buffer-read-only t) |
5f7e5584 RS |
371 | (mpuz-mode))) |
372 | ||
373 | \f | |
374 | ;; Game control | |
375 | ;;------------- | |
5f7e5584 RS |
376 | (defun mpuz-start-new-game () |
377 | "Start a new puzzle." | |
378 | (message "Here we go...") | |
379 | (setq mpuz-nb-errors 0 | |
380 | mpuz-in-progress t) | |
381 | (fillarray mpuz-found-digits nil) ; initialize mpuz-found-digits | |
d93196b3 | 382 | (fillarray mpuz-trivial-digits nil) |
5f7e5584 RS |
383 | (mpuz-random-puzzle) |
384 | (mpuz-switch-to-window) | |
385 | (mpuz-paint-board) | |
386 | (mpuz-paint-errors) | |
387 | (mpuz-ask-for-try)) | |
388 | ||
58c43274 RS |
389 | ;;;###autoload |
390 | (defun mpuz () | |
5f7e5584 RS |
391 | "Multiplication puzzle with GNU Emacs." |
392 | ;; Main entry point | |
393 | (interactive) | |
394 | (mpuz-switch-to-window) | |
395 | (if mpuz-in-progress | |
396 | (mpuz-offer-abort) | |
d93196b3 | 397 | (mpuz-start-new-game))) |
5f7e5584 RS |
398 | |
399 | (defun mpuz-offer-abort () | |
400 | "Ask if user wants to abort current puzzle." | |
401 | (interactive) | |
402 | (if (y-or-n-p "Abort game ") | |
d93196b3 EZ |
403 | (let ((buf (mpuz-get-buffer))) |
404 | (message "Mult Puzzle aborted.") | |
405 | (setq mpuz-in-progress nil | |
406 | mpuz-nb-errors 0) | |
407 | (fillarray mpuz-board nil) | |
408 | (if buf (kill-buffer buf))) | |
409 | (mpuz-ask-for-try))) | |
5f7e5584 RS |
410 | |
411 | (defun mpuz-ask-for-try () | |
412 | "Ask for user proposal in puzzle." | |
d93196b3 EZ |
413 | (message "Your try?")) |
414 | ||
415 | (defun mpuz-ding (error) | |
416 | "Dings, unless global variable `mpuz-silent' forbids it." | |
417 | (cond ((eq mpuz-silent t)) | |
418 | ((not mpuz-silent) (ding t)) | |
419 | (error (ding t)))) | |
5f7e5584 RS |
420 | |
421 | (defun mpuz-try-letter () | |
422 | "Propose a digit for a letter in puzzle." | |
423 | (interactive) | |
424 | (if mpuz-in-progress | |
425 | (let (letter-char digit digit-char message) | |
315b2369 | 426 | (setq letter-char (upcase last-command-char) |
5f7e5584 RS |
427 | digit (mpuz-to-digit (- letter-char ?A))) |
428 | (cond ((mpuz-digit-solved-p digit) | |
d93196b3 EZ |
429 | (message "%c already solved." letter-char) |
430 | (mpuz-ding t)) | |
5f7e5584 | 431 | ((null (aref mpuz-board digit)) |
d93196b3 EZ |
432 | (message "%c does not appear." letter-char) |
433 | (mpuz-ding t)) | |
315b2369 | 434 | ((progn (message "%c = " letter-char) |
5f7e5584 RS |
435 | ;; <char> has been entered. |
436 | ;; Print "<char> =" and | |
437 | ;; read <num> or = <num> | |
315b2369 RS |
438 | (setq digit-char (read-char)) |
439 | (if (eq digit-char ?=) | |
440 | (setq digit-char (read-char))) | |
5f7e5584 | 441 | (or (> digit-char ?9) (< digit-char ?0))) ; bad input |
d93196b3 EZ |
442 | (message "%c = %c" letter-char digit-char) |
443 | (mpuz-ding t)) | |
5f7e5584 RS |
444 | (t |
445 | (mpuz-try-proposal letter-char digit-char)))) | |
d93196b3 EZ |
446 | (if (y-or-n-p "Start a new game ") |
447 | (mpuz-start-new-game) | |
448 | (message "OK. I won't.")))) | |
5f7e5584 RS |
449 | |
450 | (defun mpuz-try-proposal (letter-char digit-char) | |
451 | "Propose LETTER-CHAR as code for DIGIT-CHAR." | |
452 | (let* ((letter (- letter-char ?A)) | |
453 | (digit (- digit-char ?0)) | |
d93196b3 EZ |
454 | (correct-digit (mpuz-to-digit letter)) |
455 | (game mpuz-nb-completed-games)) | |
5f7e5584 | 456 | (cond ((mpuz-digit-solved-p correct-digit) |
7b427043 KH |
457 | (message "%c has already been found." (+ correct-digit ?0))) |
458 | ((mpuz-digit-solved-p digit) | |
459 | (message "%c has already been placed." digit-char)) | |
5f7e5584 | 460 | ((= digit correct-digit) |
d93196b3 EZ |
461 | (message "%c = %c correct!" letter-char digit-char) |
462 | (mpuz-ding nil) | |
463 | (aset mpuz-found-digits digit t) ; Mark digit as solved | |
464 | (and (mpuz-check-all-solved) | |
465 | (mpuz-close-game))) | |
5f7e5584 | 466 | (t ;;; incorrect guess |
d93196b3 EZ |
467 | (message "%c = %c incorrect!" letter-char digit-char) |
468 | (mpuz-ding t) | |
5f7e5584 RS |
469 | (setq mpuz-nb-errors (1+ mpuz-nb-errors)) |
470 | (mpuz-paint-errors))))) | |
471 | ||
5f7e5584 RS |
472 | (defun mpuz-close-game () |
473 | "Housecleaning when puzzle has been solved." | |
474 | (setq mpuz-in-progress nil | |
475 | mpuz-nb-cumulated-errors (+ mpuz-nb-cumulated-errors mpuz-nb-errors) | |
476 | mpuz-nb-completed-games (1+ mpuz-nb-completed-games)) | |
477 | (mpuz-paint-statistics) | |
d93196b3 EZ |
478 | (let ((message (format "Puzzle solved with %d error%s. That's %s" |
479 | mpuz-nb-errors | |
480 | (if (= mpuz-nb-errors 1) "" "s") | |
481 | (cond ((= mpuz-nb-errors 0) "perfect!") | |
482 | ((= mpuz-nb-errors 1) "very good!") | |
483 | ((= mpuz-nb-errors 2) "good.") | |
484 | ((= mpuz-nb-errors 3) "not bad.") | |
485 | ((= mpuz-nb-errors 4) "not too bad...") | |
486 | ((< mpuz-nb-errors 10) "bad!") | |
487 | ((< mpuz-nb-errors 15) "awful.") | |
488 | (t "not serious."))))) | |
5f7e5584 RS |
489 | (message message) |
490 | (sit-for 4) | |
491 | (if (y-or-n-p (concat message " Start a new game ")) | |
492 | (mpuz-start-new-game) | |
d93196b3 EZ |
493 | (message "Good Bye!")))) |
494 | ||
495 | (defun mpuz-solve (&optional row col) | |
496 | "Find solution for autosolving." | |
497 | (mapc (lambda (digit) | |
498 | (or (mpuz-digit-solved-p digit) | |
499 | (if row | |
500 | (not (if col | |
501 | (member (cons row col) (aref mpuz-board digit)) | |
502 | (assq row (aref mpuz-board digit))))) | |
503 | (aset mpuz-trivial-digits digit t))) | |
504 | [0 1 2 3 4 5 6 7 8 9]) | |
505 | t) | |
506 | ||
507 | (defun mpuz-show-solution (row) | |
5f7e5584 | 508 | "Display solution for debugging purposes." |
d93196b3 | 509 | (interactive "P") |
5f7e5584 | 510 | (mpuz-switch-to-window) |
d93196b3 EZ |
511 | (mpuz-solve (if row (* 2 (prefix-numeric-value row)))) |
512 | (mpuz-paint-board) | |
513 | (if (mpuz-check-all-solved) | |
514 | (mpuz-close-game))) | |
5f7e5584 | 515 | |
896546cd RS |
516 | (provide 'mpuz) |
517 | ||
6b61353c | 518 | ;;; arch-tag: 2781d6ba-89e7-43b5-85c7-5d3a2e73feb1 |
6594deb0 | 519 | ;;; mpuz.el ends here |