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5abdc915 | 1 | ;;; landmark.el --- neural-network robot that learns landmarks |
a7b88742 | 2 | |
ba318903 | 3 | ;; Copyright (C) 1996-1997, 2000-2014 Free Software Foundation, Inc. |
178fc2d3 | 4 | |
9781053a | 5 | ;; Author: Terrence Brannon (was: <brannon@rana.usc.edu>) |
178fc2d3 | 6 | ;; Created: December 16, 1996 - first release to usenet |
2a9a5ea8 | 7 | ;; Keywords: games, neural network, adaptive search, chemotaxis |
a7b88742 | 8 | |
178fc2d3 RS |
9 | ;; This file is part of GNU Emacs. |
10 | ||
b1fc2b50 | 11 | ;; GNU Emacs is free software: you can redistribute it and/or modify |
178fc2d3 | 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. | |
178fc2d3 RS |
15 | |
16 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
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/>. |
178fc2d3 | 23 | |
178fc2d3 | 24 | |
6e44da43 | 25 | ;;; Commentary: |
2a9a5ea8 GM |
26 | |
27 | ;; To try this, just type: M-x landmark-test-run | |
28 | ||
4d0143e6 | 29 | ;; Landmark is a relatively non-participatory game in which a robot |
80cb310d SM |
30 | ;; attempts to maneuver towards a tree at the center of the window |
31 | ;; based on unique olfactory cues from each of the 4 directions. If | |
32 | ;; the smell of the tree increases, then the weights in the robot's | |
33 | ;; brain are adjusted to encourage this odor-driven behavior in the | |
34 | ;; future. If the smell of the tree decreases, the robots weights are | |
35 | ;; adjusted to discourage a correct move. | |
36 | ||
37 | ;; In laymen's terms, the search space is initially flat. The point | |
38 | ;; of training is to "turn up the edges of the search space" so that | |
39 | ;; the robot rolls toward the center. | |
40 | ||
41 | ;; Further, do not become alarmed if the robot appears to oscillate | |
42 | ;; back and forth between two or a few positions. This simply means | |
43 | ;; it is currently caught in a local minimum and is doing its best to | |
44 | ;; work its way out. | |
45 | ||
46 | ;; The version of this program as described has a small problem. a | |
47 | ;; move in a net direction can produce gross credit assignment. for | |
48 | ;; example, if moving south will produce positive payoff, then, if in | |
49 | ;; a single move, one moves east,west and south, then both east and | |
50 | ;; west will be improved when they shouldn't | |
51 | ||
4d0143e6 | 52 | ;; Many thanks to Yuri Pryadkin <yuri@rana.usc.edu> for this |
80cb310d | 53 | ;; concise problem description. |
178fc2d3 | 54 | |
178fc2d3 | 55 | ;;;_* Require |
a464a6c7 | 56 | (eval-when-compile (require 'cl-lib)) |
178fc2d3 | 57 | |
178fc2d3 RS |
58 | ;;;_* From Gomoku |
59 | ||
6e44da43 PJ |
60 | ;;; Code: |
61 | ||
4d0143e6 | 62 | (defgroup landmark nil |
323f7c49 | 63 | "Neural-network robot that learns landmarks." |
4d0143e6 | 64 | :prefix "landmark-" |
323f7c49 SE |
65 | :group 'games) |
66 | ||
178fc2d3 RS |
67 | ;;;_ + THE BOARD. |
68 | ||
178fc2d3 RS |
69 | ;; The board is a rectangular grid. We code empty squares with 0, X's with 1 |
70 | ;; and O's with 6. The rectangle is recorded in a one dimensional vector | |
71 | ;; containing padding squares (coded with -1). These squares allow us to | |
4fffd73b | 72 | ;; detect when we are trying to move out of the board. We denote a square by |
178fc2d3 | 73 | ;; its (X,Y) coords, or by the INDEX corresponding to them in the vector. The |
4d0143e6 | 74 | ;; leftmost topmost square has coords (1,1) and index landmark-board-width + 2. |
178fc2d3 RS |
75 | ;; Similarly, vectors between squares may be given by two DX, DY coords or by |
76 | ;; one DEPL (the difference between indexes). | |
77 | ||
4d0143e6 JA |
78 | (defvar landmark-board-width nil |
79 | "Number of columns on the Landmark board.") | |
80 | (defvar landmark-board-height nil | |
81 | "Number of lines on the Landmark board.") | |
178fc2d3 | 82 | |
4d0143e6 JA |
83 | (defvar landmark-board nil |
84 | "Vector recording the actual state of the Landmark board.") | |
178fc2d3 | 85 | |
4d0143e6 JA |
86 | (defvar landmark-vector-length nil |
87 | "Length of landmark-board vector.") | |
178fc2d3 | 88 | |
4d0143e6 | 89 | (defvar landmark-draw-limit nil |
178fc2d3 RS |
90 | ;; This is usually set to 70% of the number of squares. |
91 | "After how many moves will Emacs offer a draw?") | |
92 | ||
4d0143e6 | 93 | (defvar landmark-cx 0 |
a7b88742 KH |
94 | "This is the x coordinate of the center of the board.") |
95 | ||
4d0143e6 | 96 | (defvar landmark-cy 0 |
a7b88742 KH |
97 | "This is the y coordinate of the center of the board.") |
98 | ||
4d0143e6 | 99 | (defvar landmark-m 0 |
a7b88742 KH |
100 | "This is the x dimension of the playing board.") |
101 | ||
4d0143e6 | 102 | (defvar landmark-n 0 |
a7b88742 KH |
103 | "This is the y dimension of the playing board.") |
104 | ||
105 | ||
4d0143e6 | 106 | (defun landmark-xy-to-index (x y) |
178fc2d3 | 107 | "Translate X, Y cartesian coords into the corresponding board index." |
4d0143e6 | 108 | (+ (* y landmark-board-width) x y)) |
178fc2d3 | 109 | |
4d0143e6 | 110 | (defun landmark-index-to-x (index) |
178fc2d3 | 111 | "Return corresponding x-coord of board INDEX." |
4d0143e6 | 112 | (% index (1+ landmark-board-width))) |
178fc2d3 | 113 | |
4d0143e6 | 114 | (defun landmark-index-to-y (index) |
178fc2d3 | 115 | "Return corresponding y-coord of board INDEX." |
4d0143e6 | 116 | (/ index (1+ landmark-board-width))) |
178fc2d3 | 117 | |
4d0143e6 JA |
118 | (defun landmark-init-board () |
119 | "Create the landmark-board vector and fill it with initial values." | |
120 | (setq landmark-board (make-vector landmark-vector-length 0)) | |
178fc2d3 | 121 | ;; Every square is 0 (i.e. empty) except padding squares: |
4d0143e6 JA |
122 | (let ((i 0) (ii (1- landmark-vector-length))) |
123 | (while (<= i landmark-board-width) ; The squares in [0..width] and in | |
124 | (aset landmark-board i -1) ; [length - width - 1..length - 1] | |
125 | (aset landmark-board ii -1) ; are padding squares. | |
178fc2d3 RS |
126 | (setq i (1+ i) |
127 | ii (1- ii)))) | |
128 | (let ((i 0)) | |
4d0143e6 JA |
129 | (while (< i landmark-vector-length) |
130 | (aset landmark-board i -1) ; and also all k*(width+1) | |
131 | (setq i (+ i landmark-board-width 1))))) | |
178fc2d3 | 132 | |
a7b88742 | 133 | ;;;_ + DISPLAYING THE BOARD. |
178fc2d3 | 134 | |
a7b88742 KH |
135 | ;; You may change these values if you have a small screen or if the squares |
136 | ;; look rectangular, but spacings SHOULD be at least 2 (MUST BE at least 1). | |
137 | ||
4d0143e6 | 138 | (defconst landmark-square-width 2 |
fb7ada5f | 139 | "Horizontal spacing between squares on the Landmark board.") |
a7b88742 | 140 | |
4d0143e6 | 141 | (defconst landmark-square-height 1 |
fb7ada5f | 142 | "Vertical spacing between squares on the Landmark board.") |
a7b88742 | 143 | |
4d0143e6 | 144 | (defconst landmark-x-offset 3 |
fb7ada5f | 145 | "Number of columns between the Landmark board and the side of the window.") |
178fc2d3 | 146 | |
4d0143e6 | 147 | (defconst landmark-y-offset 1 |
fb7ada5f | 148 | "Number of lines between the Landmark board and the top of the window.") |
178fc2d3 RS |
149 | |
150 | ||
4d0143e6 | 151 | ;;;_ + LANDMARK MODE AND KEYMAP. |
178fc2d3 | 152 | |
4d0143e6 JA |
153 | (defcustom landmark-mode-hook nil |
154 | "If non-nil, its value is called on entry to Landmark mode." | |
323f7c49 | 155 | :type 'hook |
4d0143e6 | 156 | :group 'landmark) |
178fc2d3 | 157 | |
4d0143e6 | 158 | (defvar landmark-mode-map |
a0310a6c DN |
159 | (let ((map (make-sparse-keymap))) |
160 | ;; Key bindings for cursor motion. | |
4d0143e6 JA |
161 | (define-key map "y" 'landmark-move-nw) ; y |
162 | (define-key map "u" 'landmark-move-ne) ; u | |
163 | (define-key map "b" 'landmark-move-sw) ; b | |
164 | (define-key map "n" 'landmark-move-se) ; n | |
a0310a6c DN |
165 | (define-key map "h" 'backward-char) ; h |
166 | (define-key map "l" 'forward-char) ; l | |
4d0143e6 JA |
167 | (define-key map "j" 'landmark-move-down) ; j |
168 | (define-key map "k" 'landmark-move-up) ; k | |
a0310a6c | 169 | |
4d0143e6 JA |
170 | (define-key map [kp-7] 'landmark-move-nw) |
171 | (define-key map [kp-9] 'landmark-move-ne) | |
172 | (define-key map [kp-1] 'landmark-move-sw) | |
173 | (define-key map [kp-3] 'landmark-move-se) | |
a0310a6c DN |
174 | (define-key map [kp-4] 'backward-char) |
175 | (define-key map [kp-6] 'forward-char) | |
4d0143e6 JA |
176 | (define-key map [kp-2] 'landmark-move-down) |
177 | (define-key map [kp-8] 'landmark-move-up) | |
a0310a6c | 178 | |
4d0143e6 JA |
179 | (define-key map "\C-n" 'landmark-move-down) ; C-n |
180 | (define-key map "\C-p" 'landmark-move-up) ; C-p | |
a0310a6c DN |
181 | |
182 | ;; Key bindings for entering Human moves. | |
4d0143e6 JA |
183 | (define-key map "X" 'landmark-human-plays) ; X |
184 | (define-key map "x" 'landmark-human-plays) ; x | |
185 | ||
186 | (define-key map " " 'landmark-start-robot) ; SPC | |
187 | (define-key map [down-mouse-1] 'landmark-start-robot) | |
188 | (define-key map [drag-mouse-1] 'landmark-click) | |
189 | (define-key map [mouse-1] 'landmark-click) | |
190 | (define-key map [down-mouse-2] 'landmark-click) | |
191 | (define-key map [mouse-2] 'landmark-mouse-play) | |
192 | (define-key map [drag-mouse-2] 'landmark-mouse-play) | |
193 | ||
194 | (define-key map [remap previous-line] 'landmark-move-up) | |
195 | (define-key map [remap next-line] 'landmark-move-down) | |
196 | (define-key map [remap beginning-of-line] 'landmark-beginning-of-line) | |
197 | (define-key map [remap end-of-line] 'landmark-end-of-line) | |
198 | (define-key map [remap undo] 'landmark-human-takes-back) | |
199 | (define-key map [remap advertised-undo] 'landmark-human-takes-back) | |
a0310a6c | 200 | map) |
4d0143e6 | 201 | "Local keymap to use in Landmark mode.") |
178fc2d3 | 202 | |
a0310a6c | 203 | |
178fc2d3 | 204 | |
4d0143e6 | 205 | (defvar landmark-emacs-won () |
fb7ada5f | 206 | "For making font-lock use the winner's face for the line.") |
178fc2d3 | 207 | |
4d0143e6 | 208 | (defface landmark-font-lock-face-O '((((class color)) :foreground "red") |
2af34f25 | 209 | (t :weight bold)) |
44e97401 | 210 | "Face to use for Emacs's O." |
2af34f25 | 211 | :version "22.1" |
4d0143e6 | 212 | :group 'landmark) |
178fc2d3 | 213 | |
4d0143e6 | 214 | (defface landmark-font-lock-face-X '((((class color)) :foreground "green") |
2af34f25 | 215 | (t :weight bold)) |
67d110f1 | 216 | "Face to use for your X." |
2af34f25 | 217 | :version "22.1" |
4d0143e6 JA |
218 | :group 'landmark) |
219 | ||
220 | (defvar landmark-font-lock-keywords | |
221 | '(("O" . 'landmark-font-lock-face-O) | |
222 | ("X" . 'landmark-font-lock-face-X) | |
223 | ("[-|/\\]" 0 (if landmark-emacs-won | |
224 | 'landmark-font-lock-face-O | |
225 | 'landmark-font-lock-face-X))) | |
fb7ada5f | 226 | "Font lock rules for Landmark.") |
4d0143e6 JA |
227 | |
228 | (put 'landmark-mode 'front-sticky | |
229 | (put 'landmark-mode 'rear-nonsticky '(intangible))) | |
230 | (put 'landmark-mode 'intangible 1) | |
c52b27c8 EZ |
231 | ;; This one is for when they set view-read-only to t: Landmark cannot |
232 | ;; allow View Mode to be activated in its buffer. | |
512e4cdc | 233 | (define-derived-mode landmark-mode special-mode "Lm" |
1b3b87df | 234 | "Major mode for playing Lm against Emacs. |
178fc2d3 RS |
235 | You and Emacs play in turn by marking a free square. You mark it with X |
236 | and Emacs marks it with O. The winner is the first to get five contiguous | |
237 | marks horizontally, vertically or in diagonal. | |
238 | ||
4d0143e6 | 239 | You play by moving the cursor over the square you choose and hitting \\[landmark-human-plays]. |
178fc2d3 RS |
240 | |
241 | Other useful commands: | |
4d0143e6 JA |
242 | \\{landmark-mode-map} |
243 | Entry to this mode calls the value of `landmark-mode-hook' if that value | |
178fc2d3 | 244 | is non-nil. One interesting value is `turn-on-font-lock'." |
512e4cdc | 245 | (landmark-display-statistics) |
ed88649e | 246 | (setq-local font-lock-defaults '(landmark-font-lock-keywords t)) |
1b3b87df | 247 | (setq buffer-read-only t)) |
178fc2d3 RS |
248 | |
249 | ||
178fc2d3 RS |
250 | ;;;_ + THE SCORE TABLE. |
251 | ||
252 | ||
253 | ;; Every (free) square has a score associated to it, recorded in the | |
4d0143e6 | 254 | ;; LANDMARK-SCORE-TABLE vector. The program always plays in the square having |
178fc2d3 RS |
255 | ;; the highest score. |
256 | ||
4d0143e6 | 257 | (defvar landmark-score-table nil |
178fc2d3 RS |
258 | "Vector recording the actual score of the free squares.") |
259 | ||
260 | ||
261 | ;; The key point point about the algorithm is that, rather than considering | |
262 | ;; the board as just a set of squares, we prefer to see it as a "space" of | |
263 | ;; internested 5-tuples of contiguous squares (called qtuples). | |
264 | ;; | |
265 | ;; The aim of the program is to fill one qtuple with its O's while preventing | |
266 | ;; you from filling another one with your X's. To that effect, it computes a | |
267 | ;; score for every qtuple, with better qtuples having better scores. Of | |
268 | ;; course, the score of a qtuple (taken in isolation) is just determined by | |
269 | ;; its contents as a set, i.e. not considering the order of its elements. The | |
270 | ;; highest score is given to the "OOOO" qtuples because playing in such a | |
271 | ;; qtuple is winning the game. Just after this comes the "XXXX" qtuple because | |
52365e61 | 272 | ;; not playing in it is just losing the game, and so on. Note that a |
178fc2d3 RS |
273 | ;; "polluted" qtuple, i.e. one containing at least one X and at least one O, |
274 | ;; has score zero because there is no more any point in playing in it, from | |
275 | ;; both an attacking and a defending point of view. | |
276 | ;; | |
277 | ;; Given the score of every qtuple, the score of a given free square on the | |
278 | ;; board is just the sum of the scores of all the qtuples to which it belongs, | |
279 | ;; because playing in that square is playing in all its containing qtuples at | |
280 | ;; once. And it is that function which takes into account the internesting of | |
281 | ;; the qtuples. | |
282 | ;; | |
283 | ;; This algorithm is rather simple but anyway it gives a not so dumb level of | |
4d0143e6 | 284 | ;; play. It easily extends to "n-dimensional Landmark", where a win should not |
178fc2d3 RS |
285 | ;; be obtained with as few as 5 contiguous marks: 6 or 7 (depending on n !) |
286 | ;; should be preferred. | |
287 | ||
288 | ||
289 | ;; Here are the scores of the nine "non-polluted" configurations. Tuning | |
290 | ;; these values will change (hopefully improve) the strength of the program | |
291 | ;; and may change its style (rather aggressive here). | |
292 | ||
4d0143e6 | 293 | (defconst landmark-nil-score 7 "Score of an empty qtuple.") |
178fc2d3 | 294 | |
4d0143e6 | 295 | (defconst landmark-score-trans-table |
80cb310d SM |
296 | (let ((Xscore 15) ; Score of a qtuple containing one X. |
297 | (XXscore 400) ; Score of a qtuple containing two X's. | |
298 | (XXXscore 1800) ; Score of a qtuple containing three X's. | |
299 | (XXXXscore 100000) ; Score of a qtuple containing four X's. | |
300 | (Oscore 35) ; Score of a qtuple containing one O. | |
301 | (OOscore 800) ; Score of a qtuple containing two O's. | |
302 | (OOOscore 15000) ; Score of a qtuple containing three O's. | |
303 | (OOOOscore 800000)) ; Score of a qtuple containing four O's. | |
304 | ||
305 | ;; These values are not just random: if, given the following situation: | |
306 | ;; | |
307 | ;; . . . . . . . O . | |
308 | ;; . X X a . . . X . | |
309 | ;; . . . X . . . X . | |
310 | ;; . . . X . . . X . | |
311 | ;; . . . . . . . b . | |
312 | ;; | |
313 | ;; you want Emacs to play in "a" and not in "b", then the parameters must | |
314 | ;; satisfy the inequality: | |
315 | ;; | |
316 | ;; 6 * XXscore > XXXscore + XXscore | |
317 | ;; | |
318 | ;; because "a" mainly belongs to six "XX" qtuples (the others are less | |
319 | ;; important) while "b" belongs to one "XXX" and one "XX" qtuples. | |
320 | ;; Other conditions are required to obtain sensible moves, but the | |
321 | ;; previous example should illustrate the point. If you manage to | |
322 | ;; improve on these values, please send me a note. Thanks. | |
323 | ||
324 | ||
325 | ;; As we chose values 0, 1 and 6 to denote empty, X and O squares, | |
326 | ;; the contents of a qtuple are uniquely determined by the sum of | |
327 | ;; its elements and we just have to set up a translation table. | |
4d0143e6 | 328 | (vector landmark-nil-score Xscore XXscore XXXscore XXXXscore 0 |
80cb310d SM |
329 | Oscore 0 0 0 0 0 |
330 | OOscore 0 0 0 0 0 | |
331 | OOOscore 0 0 0 0 0 | |
332 | OOOOscore 0 0 0 0 0 | |
333 | 0)) | |
178fc2d3 RS |
334 | "Vector associating qtuple contents to their score.") |
335 | ||
336 | ||
337 | ;; If you do not modify drastically the previous constants, the only way for a | |
338 | ;; square to have a score higher than OOOOscore is to belong to a "OOOO" | |
339 | ;; qtuple, thus to be a winning move. Similarly, the only way for a square to | |
340 | ;; have a score between XXXXscore and OOOOscore is to belong to a "XXXX" | |
341 | ;; qtuple. We may use these considerations to detect when a given move is | |
52365e61 | 342 | ;; winning or losing. |
178fc2d3 | 343 | |
4d0143e6 JA |
344 | (defconst landmark-winning-threshold |
345 | (aref landmark-score-trans-table (+ 6 6 6 6)) ;; OOOOscore | |
178fc2d3 RS |
346 | "Threshold score beyond which an Emacs move is winning.") |
347 | ||
4d0143e6 JA |
348 | (defconst landmark-losing-threshold |
349 | (aref landmark-score-trans-table (+ 1 1 1 1)) ;; XXXXscore | |
178fc2d3 RS |
350 | "Threshold score beyond which a human move is winning.") |
351 | ||
352 | ||
4d0143e6 | 353 | (defun landmark-strongest-square () |
178fc2d3 RS |
354 | "Compute index of free square with highest score, or nil if none." |
355 | ;; We just have to loop other all squares. However there are two problems: | |
356 | ;; 1/ The SCORE-TABLE only gives correct scores to free squares. To speed | |
357 | ;; up future searches, we set the score of padding or occupied squares | |
358 | ;; to -1 whenever we meet them. | |
359 | ;; 2/ We want to choose randomly between equally good moves. | |
360 | (let ((score-max 0) | |
361 | (count 0) ; Number of equally good moves | |
4d0143e6 JA |
362 | (square (landmark-xy-to-index 1 1)) ; First square |
363 | (end (landmark-xy-to-index landmark-board-width landmark-board-height)) | |
178fc2d3 RS |
364 | best-square score) |
365 | (while (<= square end) | |
366 | (cond | |
367 | ;; If score is lower (i.e. most of the time), skip to next: | |
4d0143e6 | 368 | ((< (aref landmark-score-table square) score-max)) |
178fc2d3 | 369 | ;; If score is better, beware of non free squares: |
4d0143e6 JA |
370 | ((> (setq score (aref landmark-score-table square)) score-max) |
371 | (if (zerop (aref landmark-board square)) ; is it free ? | |
178fc2d3 RS |
372 | (setq count 1 ; yes: take it ! |
373 | best-square square | |
374 | score-max score) | |
4d0143e6 | 375 | (aset landmark-score-table square -1))) ; no: kill it ! |
e4769531 | 376 | ;; If score is equally good, choose randomly. But first check freedom: |
4d0143e6 JA |
377 | ((not (zerop (aref landmark-board square))) |
378 | (aset landmark-score-table square -1)) | |
178fc2d3 RS |
379 | ((zerop (random (setq count (1+ count)))) |
380 | (setq best-square square | |
381 | score-max score))) | |
382 | (setq square (1+ square))) ; try next square | |
383 | best-square)) | |
384 | ||
385 | ;;;_ - INITIALIZING THE SCORE TABLE. | |
386 | ||
387 | ;; At initialization the board is empty so that every qtuple amounts for | |
388 | ;; nil-score. Therefore, the score of any square is nil-score times the number | |
389 | ;; of qtuples that pass through it. This number is 3 in a corner and 20 if you | |
390 | ;; are sufficiently far from the sides. As computing the number is time | |
391 | ;; consuming, we initialize every square with 20*nil-score and then only | |
392 | ;; consider squares at less than 5 squares from one side. We speed this up by | |
393 | ;; taking symmetry into account. | |
394 | ;; Also, as it is likely that successive games will be played on a board with | |
395 | ;; same size, it is a good idea to save the initial SCORE-TABLE configuration. | |
396 | ||
4d0143e6 | 397 | (defvar landmark-saved-score-table nil |
178fc2d3 RS |
398 | "Recorded initial value of previous score table.") |
399 | ||
4d0143e6 | 400 | (defvar landmark-saved-board-width nil |
178fc2d3 RS |
401 | "Recorded value of previous board width.") |
402 | ||
4d0143e6 | 403 | (defvar landmark-saved-board-height nil |
178fc2d3 RS |
404 | "Recorded value of previous board height.") |
405 | ||
406 | ||
4d0143e6 | 407 | (defun landmark-init-score-table () |
178fc2d3 | 408 | "Create the score table vector and fill it with initial values." |
4d0143e6 JA |
409 | (if (and landmark-saved-score-table ; Has it been stored last time ? |
410 | (= landmark-board-width landmark-saved-board-width) | |
411 | (= landmark-board-height landmark-saved-board-height)) | |
412 | (setq landmark-score-table (copy-sequence landmark-saved-score-table)) | |
178fc2d3 | 413 | ;; No, compute it: |
4d0143e6 JA |
414 | (setq landmark-score-table |
415 | (make-vector landmark-vector-length (* 20 landmark-nil-score))) | |
178fc2d3 | 416 | (let (i j maxi maxj maxi2 maxj2) |
4d0143e6 JA |
417 | (setq maxi (/ (1+ landmark-board-width) 2) |
418 | maxj (/ (1+ landmark-board-height) 2) | |
178fc2d3 RS |
419 | maxi2 (min 4 maxi) |
420 | maxj2 (min 4 maxj)) | |
421 | ;; We took symmetry into account and could use it more if the board | |
422 | ;; would have been square and not rectangular ! | |
423 | ;; In our case we deal with all (i,j) in the set [1..maxi2]*[1..maxj] U | |
424 | ;; [maxi2+1..maxi]*[1..maxj2]. Maxi2 and maxj2 are used because the | |
425 | ;; board may well be less than 8 by 8 ! | |
426 | (setq i 1) | |
427 | (while (<= i maxi2) | |
428 | (setq j 1) | |
429 | (while (<= j maxj) | |
4d0143e6 | 430 | (landmark-init-square-score i j) |
178fc2d3 RS |
431 | (setq j (1+ j))) |
432 | (setq i (1+ i))) | |
433 | (while (<= i maxi) | |
434 | (setq j 1) | |
435 | (while (<= j maxj2) | |
4d0143e6 | 436 | (landmark-init-square-score i j) |
178fc2d3 RS |
437 | (setq j (1+ j))) |
438 | (setq i (1+ i)))) | |
4d0143e6 JA |
439 | (setq landmark-saved-score-table (copy-sequence landmark-score-table) |
440 | landmark-saved-board-width landmark-board-width | |
441 | landmark-saved-board-height landmark-board-height))) | |
178fc2d3 | 442 | |
4d0143e6 | 443 | (defun landmark-nb-qtuples (i j) |
178fc2d3 RS |
444 | "Return the number of qtuples containing square I,J." |
445 | ;; This function is complicated because we have to deal | |
446 | ;; with ugly cases like 3 by 6 boards, but it works. | |
447 | ;; If you have a simpler (and correct) solution, send it to me. Thanks ! | |
448 | (let ((left (min 4 (1- i))) | |
4d0143e6 | 449 | (right (min 4 (- landmark-board-width i))) |
178fc2d3 | 450 | (up (min 4 (1- j))) |
4d0143e6 | 451 | (down (min 4 (- landmark-board-height j)))) |
178fc2d3 RS |
452 | (+ -12 |
453 | (min (max (+ left right) 3) 8) | |
454 | (min (max (+ up down) 3) 8) | |
455 | (min (max (+ (min left up) (min right down)) 3) 8) | |
456 | (min (max (+ (min right up) (min left down)) 3) 8)))) | |
457 | ||
4d0143e6 | 458 | (defun landmark-init-square-score (i j) |
178fc2d3 | 459 | "Give initial score to square I,J and to its mirror images." |
4d0143e6 JA |
460 | (let ((ii (1+ (- landmark-board-width i))) |
461 | (jj (1+ (- landmark-board-height j))) | |
462 | (sc (* (landmark-nb-qtuples i j) (aref landmark-score-trans-table 0)))) | |
463 | (aset landmark-score-table (landmark-xy-to-index i j) sc) | |
464 | (aset landmark-score-table (landmark-xy-to-index ii j) sc) | |
465 | (aset landmark-score-table (landmark-xy-to-index i jj) sc) | |
466 | (aset landmark-score-table (landmark-xy-to-index ii jj) sc))) | |
178fc2d3 RS |
467 | ;;;_ - MAINTAINING THE SCORE TABLE. |
468 | ||
469 | ||
470 | ;; We do not provide functions for computing the SCORE-TABLE given the | |
471 | ;; contents of the BOARD. This would involve heavy nested loops, with time | |
472 | ;; proportional to the size of the board. It is better to update the | |
473 | ;; SCORE-TABLE after each move. Updating needs not modify more than 36 | |
474 | ;; squares: it is done in constant time. | |
475 | ||
4d0143e6 | 476 | (defun landmark-update-score-table (square dval) |
178fc2d3 RS |
477 | "Update score table after SQUARE received a DVAL increment." |
478 | ;; The board has already been updated when this function is called. | |
479 | ;; Updating scores is done by looking for qtuples boundaries in all four | |
480 | ;; directions and then calling update-score-in-direction. | |
481 | ;; Finally all squares received the right increment, and then are up to | |
482 | ;; date, except possibly for SQUARE itself if we are taking a move back for | |
483 | ;; its score had been set to -1 at the time. | |
4d0143e6 JA |
484 | (let* ((x (landmark-index-to-x square)) |
485 | (y (landmark-index-to-y square)) | |
178fc2d3 RS |
486 | (imin (max -4 (- 1 x))) |
487 | (jmin (max -4 (- 1 y))) | |
4d0143e6 JA |
488 | (imax (min 0 (- landmark-board-width x 4))) |
489 | (jmax (min 0 (- landmark-board-height y 4)))) | |
490 | (landmark-update-score-in-direction imin imax | |
178fc2d3 | 491 | square 1 0 dval) |
4d0143e6 | 492 | (landmark-update-score-in-direction jmin jmax |
178fc2d3 | 493 | square 0 1 dval) |
4d0143e6 | 494 | (landmark-update-score-in-direction (max imin jmin) (min imax jmax) |
178fc2d3 | 495 | square 1 1 dval) |
4d0143e6 JA |
496 | (landmark-update-score-in-direction (max (- 1 y) -4 |
497 | (- x landmark-board-width)) | |
178fc2d3 | 498 | (min 0 (- x 5) |
4d0143e6 | 499 | (- landmark-board-height y 4)) |
178fc2d3 RS |
500 | square -1 1 dval))) |
501 | ||
4d0143e6 | 502 | (defun landmark-update-score-in-direction (left right square dx dy dval) |
a7b88742 KH |
503 | "Update scores for all squares in the qtuples in range. |
504 | That is, those between the LEFTth square and the RIGHTth after SQUARE, | |
505 | along the DX, DY direction, considering that DVAL has been added on SQUARE." | |
178fc2d3 RS |
506 | ;; We always have LEFT <= 0, RIGHT <= 0 and DEPL > 0 but we may very well |
507 | ;; have LEFT > RIGHT, indicating that no qtuple contains SQUARE along that | |
508 | ;; DX,DY direction. | |
509 | (cond | |
510 | ((> left right)) ; Quit | |
511 | (t ; Else .. | |
512 | (let (depl square0 square1 square2 count delta) | |
4d0143e6 | 513 | (setq depl (landmark-xy-to-index dx dy) |
178fc2d3 RS |
514 | square0 (+ square (* left depl)) |
515 | square1 (+ square (* right depl)) | |
516 | square2 (+ square0 (* 4 depl))) | |
517 | ;; Compute the contents of the first qtuple: | |
518 | (setq square square0 | |
519 | count 0) | |
520 | (while (<= square square2) | |
4d0143e6 | 521 | (setq count (+ count (aref landmark-board square)) |
178fc2d3 RS |
522 | square (+ square depl))) |
523 | (while (<= square0 square1) | |
524 | ;; Update the squares of the qtuple beginning in SQUARE0 and ending | |
525 | ;; in SQUARE2. | |
4d0143e6 JA |
526 | (setq delta (- (aref landmark-score-trans-table count) |
527 | (aref landmark-score-trans-table (- count dval)))) | |
178fc2d3 RS |
528 | (cond ((not (zerop delta)) ; or else nothing to update |
529 | (setq square square0) | |
530 | (while (<= square square2) | |
4d0143e6 JA |
531 | (if (zerop (aref landmark-board square)) ; only for free squares |
532 | (aset landmark-score-table square | |
533 | (+ (aref landmark-score-table square) delta))) | |
178fc2d3 RS |
534 | (setq square (+ square depl))))) |
535 | ;; Then shift the qtuple one square along DEPL, this only requires | |
536 | ;; modifying SQUARE0 and SQUARE2. | |
537 | (setq square2 (+ square2 depl) | |
4d0143e6 JA |
538 | count (+ count (- (aref landmark-board square0)) |
539 | (aref landmark-board square2)) | |
178fc2d3 RS |
540 | square0 (+ square0 depl))))))) |
541 | ||
542 | ;;; | |
543 | ;;; GAME CONTROL. | |
544 | ;;; | |
545 | ||
546 | ;; Several variables are used to monitor a game, including a GAME-HISTORY (the | |
547 | ;; list of all (SQUARE . PREVSCORE) played) that allows to take moves back | |
548 | ;; (anti-updating the score table) and to compute the table from scratch in | |
549 | ;; case of an interruption. | |
550 | ||
4d0143e6 | 551 | (defvar landmark-game-in-progress nil |
178fc2d3 RS |
552 | "Non-nil if a game is in progress.") |
553 | ||
4d0143e6 | 554 | (defvar landmark-game-history nil |
178fc2d3 RS |
555 | "A record of all moves that have been played during current game.") |
556 | ||
4d0143e6 | 557 | (defvar landmark-number-of-moves nil |
178fc2d3 RS |
558 | "Number of moves already played in current game.") |
559 | ||
4d0143e6 | 560 | (defvar landmark-number-of-human-moves nil |
178fc2d3 RS |
561 | "Number of moves already played by human in current game.") |
562 | ||
4d0143e6 | 563 | (defvar landmark-emacs-played-first nil |
178fc2d3 RS |
564 | "Non-nil if Emacs played first.") |
565 | ||
4d0143e6 | 566 | (defvar landmark-human-took-back nil |
178fc2d3 RS |
567 | "Non-nil if Human took back a move during the game.") |
568 | ||
4d0143e6 | 569 | (defvar landmark-human-refused-draw nil |
178fc2d3 RS |
570 | "Non-nil if Human refused Emacs offer of a draw.") |
571 | ||
4d0143e6 | 572 | (defvar landmark-emacs-is-computing nil |
178fc2d3 RS |
573 | ;; This is used to detect interruptions. Hopefully, it should not be needed. |
574 | "Non-nil if Emacs is in the middle of a computation.") | |
575 | ||
576 | ||
4d0143e6 | 577 | (defun landmark-start-game (n m) |
178fc2d3 | 578 | "Initialize a new game on an N by M board." |
4d0143e6 JA |
579 | (setq landmark-emacs-is-computing t) ; Raise flag |
580 | (setq landmark-game-in-progress t) | |
581 | (setq landmark-board-width n | |
582 | landmark-board-height m | |
583 | landmark-vector-length (1+ (* (+ m 2) (1+ n))) | |
584 | landmark-draw-limit (/ (* 7 n m) 10)) | |
585 | (setq landmark-emacs-won nil | |
586 | landmark-game-history nil | |
587 | landmark-number-of-moves 0 | |
588 | landmark-number-of-human-moves 0 | |
589 | landmark-emacs-played-first nil | |
590 | landmark-human-took-back nil | |
591 | landmark-human-refused-draw nil) | |
592 | (landmark-init-display n m) ; Display first: the rest takes time | |
593 | (landmark-init-score-table) ; INIT-BOARD requires that the score | |
594 | (landmark-init-board) ; table be already created. | |
595 | (setq landmark-emacs-is-computing nil)) | |
596 | ||
597 | (defun landmark-play-move (square val &optional dont-update-score) | |
178fc2d3 | 598 | "Go to SQUARE, play VAL and update everything." |
4d0143e6 | 599 | (setq landmark-emacs-is-computing t) ; Raise flag |
178fc2d3 | 600 | (cond ((= 1 val) ; a Human move |
4d0143e6 JA |
601 | (setq landmark-number-of-human-moves (1+ landmark-number-of-human-moves))) |
602 | ((zerop landmark-number-of-moves) ; an Emacs move. Is it first ? | |
603 | (setq landmark-emacs-played-first t))) | |
604 | (setq landmark-game-history | |
605 | (cons (cons square (aref landmark-score-table square)) | |
606 | landmark-game-history) | |
607 | landmark-number-of-moves (1+ landmark-number-of-moves)) | |
608 | (landmark-plot-square square val) | |
609 | (aset landmark-board square val) ; *BEFORE* UPDATE-SCORE ! | |
178fc2d3 | 610 | (if dont-update-score nil |
4d0143e6 JA |
611 | (landmark-update-score-table square val) ; previous val was 0: dval = val |
612 | (aset landmark-score-table square -1)) | |
613 | (setq landmark-emacs-is-computing nil)) | |
178fc2d3 | 614 | |
4d0143e6 | 615 | (defun landmark-take-back () |
178fc2d3 | 616 | "Take back last move and update everything." |
4d0143e6 JA |
617 | (setq landmark-emacs-is-computing t) |
618 | (let* ((last-move (car landmark-game-history)) | |
178fc2d3 | 619 | (square (car last-move)) |
4d0143e6 | 620 | (oldval (aref landmark-board square))) |
178fc2d3 | 621 | (if (= 1 oldval) |
4d0143e6 JA |
622 | (setq landmark-number-of-human-moves (1- landmark-number-of-human-moves))) |
623 | (setq landmark-game-history (cdr landmark-game-history) | |
624 | landmark-number-of-moves (1- landmark-number-of-moves)) | |
625 | (landmark-plot-square square 0) | |
626 | (aset landmark-board square 0) ; *BEFORE* UPDATE-SCORE ! | |
627 | (landmark-update-score-table square (- oldval)) | |
628 | (aset landmark-score-table square (cdr last-move))) | |
629 | (setq landmark-emacs-is-computing nil)) | |
178fc2d3 RS |
630 | |
631 | ||
178fc2d3 RS |
632 | ;;;_ + SESSION CONTROL. |
633 | ||
4d0143e6 | 634 | (defvar landmark-number-of-trials 0 |
a7b88742 KH |
635 | "The number of times that landmark has been run.") |
636 | ||
4d0143e6 | 637 | (defvar landmark-sum-of-moves 0 |
a7b88742 | 638 | "The total number of moves made in all games.") |
178fc2d3 | 639 | |
4d0143e6 | 640 | (defvar landmark-number-of-emacs-wins 0 |
178fc2d3 RS |
641 | "Number of games Emacs won in this session.") |
642 | ||
4d0143e6 | 643 | (defvar landmark-number-of-human-wins 0 |
178fc2d3 RS |
644 | "Number of games you won in this session.") |
645 | ||
4d0143e6 | 646 | (defvar landmark-number-of-draws 0 |
178fc2d3 RS |
647 | "Number of games already drawn in this session.") |
648 | ||
649 | ||
4d0143e6 | 650 | (defun landmark-terminate-game (result) |
178fc2d3 | 651 | "Terminate the current game with RESULT." |
4d0143e6 JA |
652 | (setq landmark-number-of-trials (1+ landmark-number-of-trials)) |
653 | (setq landmark-sum-of-moves (+ landmark-sum-of-moves landmark-number-of-moves)) | |
a7b88742 KH |
654 | (if (eq result 'crash-game) |
655 | (message | |
656 | "Sorry, I have been interrupted and cannot resume that game...")) | |
4d0143e6 | 657 | (landmark-display-statistics) |
178fc2d3 | 658 | ;;(ding) |
4d0143e6 | 659 | (setq landmark-game-in-progress nil)) |
178fc2d3 | 660 | |
4d0143e6 | 661 | (defun landmark-crash-game () |
178fc2d3 | 662 | "What to do when Emacs detects it has been interrupted." |
4d0143e6 JA |
663 | (setq landmark-emacs-is-computing nil) |
664 | (landmark-terminate-game 'crash-game) | |
178fc2d3 | 665 | (sit-for 4) ; Let's see the message |
4d0143e6 | 666 | (landmark-prompt-for-other-game)) |
178fc2d3 RS |
667 | |
668 | ||
178fc2d3 RS |
669 | ;;;_ + INTERACTIVE COMMANDS. |
670 | ||
4d0143e6 | 671 | (defun landmark-emacs-plays () |
178fc2d3 RS |
672 | "Compute Emacs next move and play it." |
673 | (interactive) | |
4d0143e6 | 674 | (landmark-switch-to-window) |
178fc2d3 | 675 | (cond |
4d0143e6 JA |
676 | (landmark-emacs-is-computing |
677 | (landmark-crash-game)) | |
678 | ((not landmark-game-in-progress) | |
679 | (landmark-prompt-for-other-game)) | |
178fc2d3 RS |
680 | (t |
681 | (message "Let me think...") | |
682 | (let (square score) | |
4d0143e6 | 683 | (setq square (landmark-strongest-square)) |
178fc2d3 | 684 | (cond ((null square) |
4d0143e6 | 685 | (landmark-terminate-game 'nobody-won)) |
178fc2d3 | 686 | (t |
4d0143e6 JA |
687 | (setq score (aref landmark-score-table square)) |
688 | (landmark-play-move square 6) | |
689 | (cond ((>= score landmark-winning-threshold) | |
690 | (setq landmark-emacs-won t) ; for font-lock | |
691 | (landmark-find-filled-qtuple square 6) | |
692 | (landmark-terminate-game 'emacs-won)) | |
178fc2d3 | 693 | ((zerop score) |
4d0143e6 JA |
694 | (landmark-terminate-game 'nobody-won)) |
695 | ((and (> landmark-number-of-moves landmark-draw-limit) | |
696 | (not landmark-human-refused-draw) | |
697 | (landmark-offer-a-draw)) | |
698 | (landmark-terminate-game 'draw-agreed)) | |
178fc2d3 | 699 | (t |
4d0143e6 | 700 | (landmark-prompt-for-move))))))))) |
178fc2d3 RS |
701 | |
702 | ;; For small square dimensions this is approximate, since though measured in | |
703 | ;; pixels, event's (X . Y) is a character's top-left corner. | |
4d0143e6 | 704 | (defun landmark-click (click) |
178fc2d3 RS |
705 | "Position at the square where you click." |
706 | (interactive "e") | |
707 | (and (windowp (posn-window (setq click (event-end click)))) | |
708 | (numberp (posn-point click)) | |
709 | (select-window (posn-window click)) | |
710 | (setq click (posn-col-row click)) | |
4d0143e6 | 711 | (landmark-goto-xy |
178fc2d3 | 712 | (min (max (/ (+ (- (car click) |
4d0143e6 | 713 | landmark-x-offset |
178fc2d3 RS |
714 | 1) |
715 | (window-hscroll) | |
4d0143e6 JA |
716 | landmark-square-width |
717 | (% landmark-square-width 2) | |
718 | (/ landmark-square-width 2)) | |
719 | landmark-square-width) | |
178fc2d3 | 720 | 1) |
4d0143e6 | 721 | landmark-board-width) |
178fc2d3 | 722 | (min (max (/ (+ (- (cdr click) |
4d0143e6 | 723 | landmark-y-offset |
178fc2d3 RS |
724 | 1) |
725 | (let ((inhibit-point-motion-hooks t)) | |
726 | (count-lines 1 (window-start))) | |
4d0143e6 JA |
727 | landmark-square-height |
728 | (% landmark-square-height 2) | |
729 | (/ landmark-square-height 2)) | |
730 | landmark-square-height) | |
178fc2d3 | 731 | 1) |
4d0143e6 | 732 | landmark-board-height)))) |
a7b88742 | 733 | |
4d0143e6 | 734 | (defun landmark-mouse-play (click) |
178fc2d3 RS |
735 | "Play at the square where you click." |
736 | (interactive "e") | |
4d0143e6 JA |
737 | (if (landmark-click click) |
738 | (landmark-human-plays))) | |
178fc2d3 | 739 | |
4d0143e6 JA |
740 | (defun landmark-human-plays () |
741 | "Signal to the Landmark program that you have played. | |
178fc2d3 RS |
742 | You must have put the cursor on the square where you want to play. |
743 | If the game is finished, this command requests for another game." | |
744 | (interactive) | |
4d0143e6 | 745 | (landmark-switch-to-window) |
178fc2d3 | 746 | (cond |
4d0143e6 JA |
747 | (landmark-emacs-is-computing |
748 | (landmark-crash-game)) | |
749 | ((not landmark-game-in-progress) | |
750 | (landmark-prompt-for-other-game)) | |
178fc2d3 RS |
751 | (t |
752 | (let (square score) | |
4d0143e6 | 753 | (setq square (landmark-point-square)) |
178fc2d3 | 754 | (cond ((null square) |
ce5a3ac0 | 755 | (error "Your point is not on a square. Retry!")) |
4d0143e6 | 756 | ((not (zerop (aref landmark-board square))) |
ce5a3ac0 | 757 | (error "Your point is not on a free square. Retry!")) |
178fc2d3 | 758 | (t |
4d0143e6 JA |
759 | (setq score (aref landmark-score-table square)) |
760 | (landmark-play-move square 1) | |
761 | (cond ((and (>= score landmark-losing-threshold) | |
178fc2d3 RS |
762 | ;; Just testing SCORE > THRESHOLD is not enough for |
763 | ;; detecting wins, it just gives an indication that | |
4d0143e6 JA |
764 | ;; we confirm with LANDMARK-FIND-FILLED-QTUPLE. |
765 | (landmark-find-filled-qtuple square 1)) | |
766 | (landmark-terminate-game 'human-won)) | |
178fc2d3 | 767 | (t |
4d0143e6 | 768 | (landmark-emacs-plays))))))))) |
178fc2d3 | 769 | |
4d0143e6 JA |
770 | (defun landmark-human-takes-back () |
771 | "Signal to the Landmark program that you wish to take back your last move." | |
178fc2d3 | 772 | (interactive) |
4d0143e6 | 773 | (landmark-switch-to-window) |
178fc2d3 | 774 | (cond |
4d0143e6 JA |
775 | (landmark-emacs-is-computing |
776 | (landmark-crash-game)) | |
777 | ((not landmark-game-in-progress) | |
178fc2d3 RS |
778 | (message "Too late for taking back...") |
779 | (sit-for 4) | |
4d0143e6 JA |
780 | (landmark-prompt-for-other-game)) |
781 | ((zerop landmark-number-of-human-moves) | |
ce5a3ac0 | 782 | (message "You have not played yet... Your move?")) |
178fc2d3 RS |
783 | (t |
784 | (message "One moment, please...") | |
785 | ;; It is possible for the user to let Emacs play several consecutive | |
786 | ;; moves, so that the best way to know when to stop taking back moves is | |
787 | ;; to count the number of human moves: | |
4d0143e6 JA |
788 | (setq landmark-human-took-back t) |
789 | (let ((number landmark-number-of-human-moves)) | |
790 | (while (= number landmark-number-of-human-moves) | |
791 | (landmark-take-back))) | |
792 | (landmark-prompt-for-move)))) | |
793 | ||
794 | (defun landmark-human-resigns () | |
795 | "Signal to the Landmark program that you may want to resign." | |
178fc2d3 | 796 | (interactive) |
4d0143e6 | 797 | (landmark-switch-to-window) |
178fc2d3 | 798 | (cond |
4d0143e6 JA |
799 | (landmark-emacs-is-computing |
800 | (landmark-crash-game)) | |
801 | ((not landmark-game-in-progress) | |
178fc2d3 | 802 | (message "There is no game in progress")) |
ce5a3ac0 | 803 | ((y-or-n-p "You mean, you resign? ") |
4d0143e6 | 804 | (landmark-terminate-game 'human-resigned)) |
ce5a3ac0 | 805 | ((y-or-n-p "You mean, we continue? ") |
4d0143e6 | 806 | (landmark-prompt-for-move)) |
178fc2d3 | 807 | (t |
4d0143e6 | 808 | (landmark-terminate-game 'human-resigned)))) ; OK. Accept it |
178fc2d3 | 809 | |
178fc2d3 RS |
810 | ;;;_ + PROMPTING THE HUMAN PLAYER. |
811 | ||
4d0143e6 | 812 | (defun landmark-prompt-for-move () |
178fc2d3 | 813 | "Display a message asking for Human's move." |
4d0143e6 | 814 | (message (if (zerop landmark-number-of-human-moves) |
ce5a3ac0 | 815 | "Your move? (move to a free square and hit X, RET ...)" |
55a4b4fe | 816 | "Your move?"))) |
178fc2d3 | 817 | |
4d0143e6 | 818 | (defun landmark-prompt-for-other-game () |
178fc2d3 | 819 | "Ask for another game, and start it." |
ce5a3ac0 | 820 | (if (y-or-n-p "Another game? ") |
a7b88742 | 821 | (if (y-or-n-p "Retain learned weights ") |
4d0143e6 JA |
822 | (landmark 2) |
823 | (landmark 1)) | |
ce5a3ac0 | 824 | (message "Chicken!"))) |
178fc2d3 | 825 | |
4d0143e6 | 826 | (defun landmark-offer-a-draw () |
a7b88742 | 827 | "Offer a draw and return t if Human accepted it." |
ce5a3ac0 | 828 | (or (y-or-n-p "I offer you a draw. Do you accept it? ") |
4d0143e6 | 829 | (not (setq landmark-human-refused-draw t)))) |
178fc2d3 RS |
830 | |
831 | ||
4d0143e6 | 832 | (defun landmark-max-width () |
178fc2d3 | 833 | "Largest possible board width for the current window." |
290d5b58 | 834 | (1+ (/ (- (window-width) |
4d0143e6 JA |
835 | landmark-x-offset landmark-x-offset 1) |
836 | landmark-square-width))) | |
178fc2d3 | 837 | |
4d0143e6 | 838 | (defun landmark-max-height () |
178fc2d3 | 839 | "Largest possible board height for the current window." |
290d5b58 | 840 | (1+ (/ (- (window-height) |
4d0143e6 | 841 | landmark-y-offset landmark-y-offset 2) |
178fc2d3 | 842 | ;; 2 instead of 1 because WINDOW-HEIGHT includes the mode line ! |
4d0143e6 | 843 | landmark-square-height))) |
178fc2d3 | 844 | |
4d0143e6 | 845 | (defun landmark-point-y () |
178fc2d3 RS |
846 | "Return the board row where point is." |
847 | (let ((inhibit-point-motion-hooks t)) | |
4d0143e6 JA |
848 | (1+ (/ (- (count-lines 1 (point)) landmark-y-offset (if (bolp) 0 1)) |
849 | landmark-square-height)))) | |
178fc2d3 | 850 | |
4d0143e6 | 851 | (defun landmark-point-square () |
178fc2d3 RS |
852 | "Return the index of the square point is on." |
853 | (let ((inhibit-point-motion-hooks t)) | |
4d0143e6 JA |
854 | (landmark-xy-to-index (1+ (/ (- (current-column) landmark-x-offset) |
855 | landmark-square-width)) | |
856 | (landmark-point-y)))) | |
178fc2d3 | 857 | |
4d0143e6 | 858 | (defun landmark-goto-square (index) |
178fc2d3 | 859 | "Move point to square number INDEX." |
4d0143e6 | 860 | (landmark-goto-xy (landmark-index-to-x index) (landmark-index-to-y index))) |
178fc2d3 | 861 | |
4d0143e6 | 862 | (defun landmark-goto-xy (x y) |
178fc2d3 RS |
863 | "Move point to square at X, Y coords." |
864 | (let ((inhibit-point-motion-hooks t)) | |
9b4c5ecd | 865 | (goto-char (point-min)) |
4d0143e6 JA |
866 | (forward-line (+ landmark-y-offset (* landmark-square-height (1- y))))) |
867 | (move-to-column (+ landmark-x-offset (* landmark-square-width (1- x))))) | |
178fc2d3 | 868 | |
4d0143e6 | 869 | (defun landmark-plot-square (square value) |
178fc2d3 RS |
870 | "Draw 'X', 'O' or '.' on SQUARE depending on VALUE, leave point there." |
871 | (or (= value 1) | |
4d0143e6 | 872 | (landmark-goto-square square)) |
178fc2d3 RS |
873 | (let ((inhibit-read-only t) |
874 | (inhibit-point-motion-hooks t)) | |
875 | (insert-and-inherit (cond ((= value 1) ?.) | |
876 | ((= value 2) ?N) | |
877 | ((= value 3) ?S) | |
878 | ((= value 4) ?E) | |
879 | ((= value 5) ?W) | |
880 | ((= value 6) ?^))) | |
881 | ||
ec45b7bb | 882 | (and (zerop value) |
366be0de EZ |
883 | (add-text-properties (1- (point)) (point) |
884 | '(mouse-face highlight | |
885 | help-echo "\ | |
886 | mouse-1: get robot moving, mouse-2: play on this square"))) | |
178fc2d3 RS |
887 | (delete-char 1) |
888 | (backward-char 1)) | |
889 | (sit-for 0)) ; Display NOW | |
890 | ||
4d0143e6 JA |
891 | (defun landmark-init-display (n m) |
892 | "Display an N by M Landmark board." | |
178fc2d3 RS |
893 | (buffer-disable-undo (current-buffer)) |
894 | (let ((inhibit-read-only t) | |
895 | (point 1) opoint | |
896 | (intangible t) | |
897 | (i m) j x) | |
898 | ;; Try to minimize number of chars (because of text properties) | |
899 | (setq tab-width | |
4d0143e6 JA |
900 | (if (zerop (% landmark-x-offset landmark-square-width)) |
901 | landmark-square-width | |
902 | (max (/ (+ (% landmark-x-offset landmark-square-width) | |
903 | landmark-square-width 1) 2) 2))) | |
178fc2d3 | 904 | (erase-buffer) |
4d0143e6 | 905 | (newline landmark-y-offset) |
178fc2d3 RS |
906 | (while (progn |
907 | (setq j n | |
4d0143e6 | 908 | x (- landmark-x-offset landmark-square-width)) |
178fc2d3 | 909 | (while (>= (setq j (1- j)) 0) |
4d0143e6 | 910 | (insert-char ?\t (/ (- (setq x (+ x landmark-square-width)) |
178fc2d3 RS |
911 | (current-column)) |
912 | tab-width)) | |
913 | (insert-char ? (- x (current-column))) | |
914 | (if (setq intangible (not intangible)) | |
915 | (put-text-property point (point) 'intangible 2)) | |
916 | (and (zerop j) | |
917 | (= i (- m 2)) | |
918 | (progn | |
919 | (while (>= i 3) | |
920 | (append-to-buffer (current-buffer) opoint (point)) | |
921 | (setq i (- i 2))) | |
922 | (goto-char (point-max)))) | |
923 | (setq point (point)) | |
924 | (insert ?=) | |
366be0de EZ |
925 | (add-text-properties point (point) |
926 | '(mouse-face highlight help-echo "\ | |
927 | mouse-1: get robot moving, mouse-2: play on this square"))) | |
178fc2d3 RS |
928 | (> (setq i (1- i)) 0)) |
929 | (if (= i (1- m)) | |
930 | (setq opoint point)) | |
4d0143e6 | 931 | (insert-char ?\n landmark-square-height)) |
178fc2d3 RS |
932 | (or (eq (char-after 1) ?.) |
933 | (put-text-property 1 2 'point-entered | |
121656e9 | 934 | (lambda (_x _y) (if (bobp) (forward-char))))) |
178fc2d3 RS |
935 | (or intangible |
936 | (put-text-property point (point) 'intangible 2)) | |
937 | (put-text-property point (point) 'point-entered | |
121656e9 | 938 | (lambda (_x _y) (if (eobp) (backward-char)))) |
4d0143e6 JA |
939 | (put-text-property (point-min) (point) 'category 'landmark-mode)) |
940 | (landmark-goto-xy (/ (1+ n) 2) (/ (1+ m) 2)) ; center of the board | |
178fc2d3 RS |
941 | (sit-for 0)) ; Display NOW |
942 | ||
4d0143e6 | 943 | (defun landmark-display-statistics () |
178fc2d3 RS |
944 | "Obnoxiously display some statistics about previous games in mode line." |
945 | ;; We store this string in the mode-line-process local variable. | |
946 | ;; This is certainly not the cleanest way out ... | |
947 | (setq mode-line-process | |
a7b88742 | 948 | (format ": Trials: %d, Avg#Moves: %d" |
4d0143e6 JA |
949 | landmark-number-of-trials |
950 | (if (zerop landmark-number-of-trials) | |
a7b88742 | 951 | 0 |
4d0143e6 | 952 | (/ landmark-sum-of-moves landmark-number-of-trials)))) |
178fc2d3 RS |
953 | (force-mode-line-update)) |
954 | ||
4d0143e6 JA |
955 | (defun landmark-switch-to-window () |
956 | "Find or create the Landmark buffer, and display it." | |
178fc2d3 | 957 | (interactive) |
4d0143e6 | 958 | (let ((buff (get-buffer "*Landmark*"))) |
178fc2d3 RS |
959 | (if buff ; Buffer exists: |
960 | (switch-to-buffer buff) ; no problem. | |
4d0143e6 JA |
961 | (if landmark-game-in-progress |
962 | (landmark-crash-game)) ; buffer has been killed or something | |
963 | (switch-to-buffer "*Landmark*") ; Anyway, start anew. | |
964 | (landmark-mode)))) | |
178fc2d3 RS |
965 | |
966 | ||
178fc2d3 RS |
967 | ;;;_ + CROSSING WINNING QTUPLES. |
968 | ||
969 | ;; When someone succeeds in filling a qtuple, we draw a line over the five | |
970 | ;; corresponding squares. One problem is that the program does not know which | |
971 | ;; squares ! It only knows the square where the last move has been played and | |
972 | ;; who won. The solution is to scan the board along all four directions. | |
973 | ||
4d0143e6 | 974 | (defun landmark-find-filled-qtuple (square value) |
a7b88742 | 975 | "Return t if SQUARE belongs to a qtuple filled with VALUEs." |
4d0143e6 JA |
976 | (or (landmark-check-filled-qtuple square value 1 0) |
977 | (landmark-check-filled-qtuple square value 0 1) | |
978 | (landmark-check-filled-qtuple square value 1 1) | |
979 | (landmark-check-filled-qtuple square value -1 1))) | |
178fc2d3 | 980 | |
4d0143e6 | 981 | (defun landmark-check-filled-qtuple (square value dx dy) |
a7b88742 | 982 | "Return t if SQUARE belongs to a qtuple filled with VALUEs along DX, DY." |
178fc2d3 RS |
983 | (let ((a 0) (b 0) |
984 | (left square) (right square) | |
4d0143e6 | 985 | (depl (landmark-xy-to-index dx dy))) |
178fc2d3 | 986 | (while (and (> a -4) ; stretch tuple left |
4d0143e6 | 987 | (= value (aref landmark-board (setq left (- left depl))))) |
178fc2d3 RS |
988 | (setq a (1- a))) |
989 | (while (and (< b (+ a 4)) ; stretch tuple right | |
4d0143e6 | 990 | (= value (aref landmark-board (setq right (+ right depl))))) |
178fc2d3 RS |
991 | (setq b (1+ b))) |
992 | (cond ((= b (+ a 4)) ; tuple length = 5 ? | |
4d0143e6 | 993 | (landmark-cross-qtuple (+ square (* a depl)) (+ square (* b depl)) |
178fc2d3 RS |
994 | dx dy) |
995 | t)))) | |
996 | ||
4d0143e6 | 997 | (defun landmark-cross-qtuple (square1 square2 dx dy) |
178fc2d3 RS |
998 | "Cross every square between SQUARE1 and SQUARE2 in the DX, DY direction." |
999 | (save-excursion ; Not moving point from last square | |
4d0143e6 | 1000 | (let ((depl (landmark-xy-to-index dx dy)) |
178fc2d3 RS |
1001 | (inhibit-read-only t) |
1002 | (inhibit-point-motion-hooks t)) | |
1003 | ;; WARNING: this function assumes DEPL > 0 and SQUARE2 > SQUARE1 | |
1004 | (while (/= square1 square2) | |
4d0143e6 | 1005 | (landmark-goto-square square1) |
178fc2d3 RS |
1006 | (setq square1 (+ square1 depl)) |
1007 | (cond | |
1008 | ((= dy 0) ; Horizontal | |
1009 | (forward-char 1) | |
4d0143e6 | 1010 | (insert-char ?- (1- landmark-square-width) t) |
178fc2d3 RS |
1011 | (delete-region (point) (progn |
1012 | (skip-chars-forward " \t") | |
1013 | (point)))) | |
1014 | ((= dx 0) ; Vertical | |
4d0143e6 | 1015 | (let ((landmark-n 1) |
178fc2d3 | 1016 | (column (current-column))) |
4d0143e6 JA |
1017 | (while (< landmark-n landmark-square-height) |
1018 | (setq landmark-n (1+ landmark-n)) | |
178fc2d3 RS |
1019 | (forward-line 1) |
1020 | (indent-to column) | |
1021 | (insert-and-inherit ?|)))) | |
1022 | ((= dx -1) ; 1st Diagonal | |
4d0143e6 JA |
1023 | (indent-to (prog1 (- (current-column) (/ landmark-square-width 2)) |
1024 | (forward-line (/ landmark-square-height 2)))) | |
178fc2d3 RS |
1025 | (insert-and-inherit ?/)) |
1026 | (t ; 2nd Diagonal | |
4d0143e6 JA |
1027 | (indent-to (prog1 (+ (current-column) (/ landmark-square-width 2)) |
1028 | (forward-line (/ landmark-square-height 2)))) | |
178fc2d3 RS |
1029 | (insert-and-inherit ?\\)))))) |
1030 | (sit-for 0)) ; Display NOW | |
1031 | ||
1032 | ||
178fc2d3 RS |
1033 | ;;;_ + CURSOR MOTION. |
1034 | ||
1035 | ;; previous-line and next-line don't work right with intangible newlines | |
4d0143e6 JA |
1036 | (defun landmark-move-down () |
1037 | "Move point down one row on the Landmark board." | |
178fc2d3 | 1038 | (interactive) |
4d0143e6 | 1039 | (if (< (landmark-point-y) landmark-board-height) |
6f110781 GM |
1040 | (let ((col (current-column))) |
1041 | (forward-line 1) ;;; landmark-square-height | |
1042 | (move-to-column col)))) | |
178fc2d3 | 1043 | |
4d0143e6 JA |
1044 | (defun landmark-move-up () |
1045 | "Move point up one row on the Landmark board." | |
178fc2d3 | 1046 | (interactive) |
4d0143e6 | 1047 | (if (> (landmark-point-y) 1) |
6f110781 GM |
1048 | (let ((col (current-column))) |
1049 | (forward-line (- landmark-square-height)) | |
1050 | (move-to-column col)))) | |
178fc2d3 | 1051 | |
4d0143e6 JA |
1052 | (defun landmark-move-ne () |
1053 | "Move point North East on the Landmark board." | |
178fc2d3 | 1054 | (interactive) |
4d0143e6 | 1055 | (landmark-move-up) |
178fc2d3 RS |
1056 | (forward-char)) |
1057 | ||
4d0143e6 JA |
1058 | (defun landmark-move-se () |
1059 | "Move point South East on the Landmark board." | |
178fc2d3 | 1060 | (interactive) |
4d0143e6 | 1061 | (landmark-move-down) |
178fc2d3 RS |
1062 | (forward-char)) |
1063 | ||
4d0143e6 JA |
1064 | (defun landmark-move-nw () |
1065 | "Move point North West on the Landmark board." | |
178fc2d3 | 1066 | (interactive) |
4d0143e6 | 1067 | (landmark-move-up) |
178fc2d3 RS |
1068 | (backward-char)) |
1069 | ||
4d0143e6 JA |
1070 | (defun landmark-move-sw () |
1071 | "Move point South West on the Landmark board." | |
178fc2d3 | 1072 | (interactive) |
4d0143e6 | 1073 | (landmark-move-down) |
178fc2d3 RS |
1074 | (backward-char)) |
1075 | ||
4d0143e6 JA |
1076 | (defun landmark-beginning-of-line () |
1077 | "Move point to first square on the Landmark board row." | |
178fc2d3 | 1078 | (interactive) |
4d0143e6 | 1079 | (move-to-column landmark-x-offset)) |
178fc2d3 | 1080 | |
4d0143e6 JA |
1081 | (defun landmark-end-of-line () |
1082 | "Move point to last square on the Landmark board row." | |
178fc2d3 | 1083 | (interactive) |
4d0143e6 JA |
1084 | (move-to-column (+ landmark-x-offset |
1085 | (* landmark-square-width (1- landmark-board-width))))) | |
178fc2d3 | 1086 | |
178fc2d3 | 1087 | |
a7b88742 | 1088 | ;;;_ + Simulation variables |
178fc2d3 | 1089 | |
4d0143e6 JA |
1090 | ;;;_ - landmark-nvar |
1091 | (defvar landmark-nvar 0.0075 | |
a7b88742 KH |
1092 | "Not used. |
1093 | Affects a noise generator which was used in an earlier incarnation of | |
1094 | this program to add a random element to the way moves were made.") | |
1095 | ;;;_ - lists of cardinal directions | |
1096 | ;;;_ : | |
4d0143e6 | 1097 | (defvar landmark-ns '(landmark-n landmark-s) |
a7b88742 | 1098 | "Used when doing something relative to the north and south axes.") |
4d0143e6 | 1099 | (defvar landmark-ew '(landmark-e landmark-w) |
a7b88742 | 1100 | "Used when doing something relative to the east and west axes.") |
4d0143e6 | 1101 | (defvar landmark-directions '(landmark-n landmark-s landmark-e landmark-w) |
a7b88742 | 1102 | "The cardinal directions.") |
4d0143e6 JA |
1103 | (defvar landmark-8-directions |
1104 | '((landmark-n) (landmark-n landmark-w) (landmark-w) (landmark-s landmark-w) | |
1105 | (landmark-s) (landmark-s landmark-e) (landmark-e) (landmark-n landmark-e)) | |
a7b88742 KH |
1106 | "The full 8 possible directions.") |
1107 | ||
4d0143e6 | 1108 | (defvar landmark-number-of-moves |
a7b88742 | 1109 | "The number of moves made by the robot so far.") |
178fc2d3 RS |
1110 | |
1111 | ||
1112 | ;;;_* Terry's mods to create lm.el | |
1113 | ||
4d0143e6 JA |
1114 | ;;;(setq landmark-debug nil) |
1115 | (defvar landmark-debug nil | |
a7b88742 | 1116 | "If non-nil, debugging is printed.") |
4d0143e6 | 1117 | (defcustom landmark-one-moment-please nil |
a7b88742 KH |
1118 | "If non-nil, print \"One moment please\" when a new board is generated. |
1119 | The drawback of this is you don't see how many moves the last run took | |
323f7c49 SE |
1120 | because it is overwritten by \"One moment please\"." |
1121 | :type 'boolean | |
4d0143e6 JA |
1122 | :group 'landmark) |
1123 | (defcustom landmark-output-moves t | |
323f7c49 SE |
1124 | "If non-nil, output number of moves so far on a move-by-move basis." |
1125 | :type 'boolean | |
4d0143e6 | 1126 | :group 'landmark) |
178fc2d3 | 1127 | |
178fc2d3 | 1128 | |
4d0143e6 JA |
1129 | (defun landmark-weights-debug () |
1130 | (if landmark-debug | |
1131 | (progn (landmark-print-wts) (landmark-blackbox) (landmark-print-y-s-noise) | |
1132 | (landmark-print-smell)))) | |
178fc2d3 RS |
1133 | |
1134 | ;;;_ - Printing various things | |
4d0143e6 | 1135 | (defun landmark-print-distance-int (direction) |
178fc2d3 RS |
1136 | (interactive) |
1137 | (insert (format "%S %S " direction (get direction 'distance)))) | |
1138 | ||
1139 | ||
4d0143e6 JA |
1140 | (defun landmark-print-distance () |
1141 | (insert (format "tree: %S \n" (calc-distance-of-robot-from 'landmark-tree))) | |
1142 | (mapc 'landmark-print-distance-int landmark-directions)) | |
178fc2d3 RS |
1143 | |
1144 | ||
4d0143e6 JA |
1145 | ;;(setq direction 'landmark-n) |
1146 | ;;(get 'landmark-n 'landmark-s) | |
1147 | (defun landmark-nslify-wts-int (direction) | |
c0df1972 | 1148 | (mapcar (lambda (target-direction) |
178fc2d3 | 1149 | (get direction target-direction)) |
4d0143e6 | 1150 | landmark-directions)) |
178fc2d3 RS |
1151 | |
1152 | ||
4d0143e6 | 1153 | (defun landmark-nslify-wts () |
178fc2d3 | 1154 | (interactive) |
4d0143e6 | 1155 | (let ((l (apply 'append (mapcar 'landmark-nslify-wts-int landmark-directions)))) |
178fc2d3 RS |
1156 | (insert (format "set data_value WTS \n %s \n" l)) |
1157 | (insert (format "/* max: %S min: %S */" | |
1158 | (eval (cons 'max l)) (eval (cons 'min l)))))) | |
1159 | ||
4d0143e6 | 1160 | (defun landmark-print-wts-int (direction) |
c0df1972 | 1161 | (mapc (lambda (target-direction) |
178fc2d3 RS |
1162 | (insert (format "%S %S %S " |
1163 | direction | |
1164 | target-direction | |
1165 | (get direction target-direction)))) | |
4d0143e6 | 1166 | landmark-directions) |
178fc2d3 RS |
1167 | (insert "\n")) |
1168 | ||
4d0143e6 | 1169 | (defun landmark-print-wts () |
178fc2d3 | 1170 | (interactive) |
4d0143e6 | 1171 | (with-current-buffer "*landmark-wts*" |
178fc2d3 | 1172 | (insert "==============================\n") |
4d0143e6 | 1173 | (mapc 'landmark-print-wts-int landmark-directions))) |
178fc2d3 | 1174 | |
4d0143e6 | 1175 | (defun landmark-print-moves (moves) |
178fc2d3 | 1176 | (interactive) |
4d0143e6 | 1177 | (with-current-buffer "*landmark-moves*" |
178fc2d3 RS |
1178 | (insert (format "%S\n" moves)))) |
1179 | ||
1180 | ||
4d0143e6 JA |
1181 | (defun landmark-print-y-s-noise-int (direction) |
1182 | (insert (format "%S:landmark-y %S, s %S, noise %S \n" | |
178fc2d3 RS |
1183 | (symbol-name direction) |
1184 | (get direction 'y_t) | |
1185 | (get direction 's) | |
1186 | (get direction 'noise) | |
1187 | ))) | |
1188 | ||
4d0143e6 | 1189 | (defun landmark-print-y-s-noise () |
178fc2d3 | 1190 | (interactive) |
4d0143e6 | 1191 | (with-current-buffer "*landmark-y,s,noise*" |
178fc2d3 | 1192 | (insert "==============================\n") |
4d0143e6 | 1193 | (mapc 'landmark-print-y-s-noise-int landmark-directions))) |
178fc2d3 | 1194 | |
4d0143e6 | 1195 | (defun landmark-print-smell-int (direction) |
178fc2d3 RS |
1196 | (insert (format "%S: smell: %S \n" |
1197 | (symbol-name direction) | |
1198 | (get direction 'smell)))) | |
1199 | ||
4d0143e6 | 1200 | (defun landmark-print-smell () |
178fc2d3 | 1201 | (interactive) |
4d0143e6 | 1202 | (with-current-buffer "*landmark-smell*" |
178fc2d3 RS |
1203 | (insert "==============================\n") |
1204 | (insert (format "tree: %S \n" (get 'z 't))) | |
4d0143e6 | 1205 | (mapc 'landmark-print-smell-int landmark-directions))) |
178fc2d3 | 1206 | |
4d0143e6 | 1207 | (defun landmark-print-w0-int (direction) |
178fc2d3 RS |
1208 | (insert (format "%S: w0: %S \n" |
1209 | (symbol-name direction) | |
1210 | (get direction 'w0)))) | |
1211 | ||
4d0143e6 | 1212 | (defun landmark-print-w0 () |
178fc2d3 | 1213 | (interactive) |
4d0143e6 | 1214 | (with-current-buffer "*landmark-w0*" |
178fc2d3 | 1215 | (insert "==============================\n") |
4d0143e6 | 1216 | (mapc 'landmark-print-w0-int landmark-directions))) |
178fc2d3 | 1217 | |
4d0143e6 JA |
1218 | (defun landmark-blackbox () |
1219 | (with-current-buffer "*landmark-blackbox*" | |
178fc2d3 RS |
1220 | (insert "==============================\n") |
1221 | (insert "I smell: ") | |
c0df1972 | 1222 | (mapc (lambda (direction) |
178fc2d3 RS |
1223 | (if (> (get direction 'smell) 0) |
1224 | (insert (format "%S " direction)))) | |
4d0143e6 | 1225 | landmark-directions) |
178fc2d3 RS |
1226 | (insert "\n") |
1227 | ||
1228 | (insert "I move: ") | |
c0df1972 | 1229 | (mapc (lambda (direction) |
178fc2d3 RS |
1230 | (if (> (get direction 'y_t) 0) |
1231 | (insert (format "%S " direction)))) | |
4d0143e6 | 1232 | landmark-directions) |
178fc2d3 | 1233 | (insert "\n") |
4d0143e6 | 1234 | (landmark-print-wts-blackbox) |
178fc2d3 | 1235 | (insert (format "z_t-z_t-1: %S" (- (get 'z 't) (get 'z 't-1)))) |
4d0143e6 | 1236 | (landmark-print-distance) |
178fc2d3 RS |
1237 | (insert "\n"))) |
1238 | ||
4d0143e6 | 1239 | (defun landmark-print-wts-blackbox () |
178fc2d3 | 1240 | (interactive) |
4d0143e6 | 1241 | (mapc 'landmark-print-wts-int landmark-directions)) |
178fc2d3 | 1242 | |
178fc2d3 | 1243 | ;;;_ - learning parameters |
4d0143e6 | 1244 | (defcustom landmark-bound 0.005 |
323f7c49 SE |
1245 | "The maximum that w0j may be." |
1246 | :type 'number | |
4d0143e6 JA |
1247 | :group 'landmark) |
1248 | (defcustom landmark-c 1.0 | |
a7b88742 | 1249 | "A factor applied to modulate the increase in wij. |
4d0143e6 | 1250 | Used in the function landmark-update-normal-weights." |
323f7c49 | 1251 | :type 'number |
4d0143e6 JA |
1252 | :group 'landmark) |
1253 | (defcustom landmark-c-naught 0.5 | |
a7b88742 | 1254 | "A factor applied to modulate the increase in w0j. |
4d0143e6 | 1255 | Used in the function landmark-update-naught-weights." |
323f7c49 | 1256 | :type 'number |
4d0143e6 JA |
1257 | :group 'landmark) |
1258 | (defvar landmark-initial-w0 0.0) | |
1259 | (defvar landmark-initial-wij 0.0) | |
1260 | (defcustom landmark-no-payoff 0 | |
a7b88742 | 1261 | "The amount of simulation cycles that have occurred with no movement. |
323f7c49 SE |
1262 | Used to move the robot when he is stuck in a rut for some reason." |
1263 | :type 'integer | |
4d0143e6 JA |
1264 | :group 'landmark) |
1265 | (defcustom landmark-max-stall-time 2 | |
a7b88742 | 1266 | "The maximum number of cycles that the robot can remain stuck in a place. |
4d0143e6 | 1267 | After this limit is reached, landmark-random-move is called to push him out of it." |
323f7c49 | 1268 | :type 'integer |
4d0143e6 | 1269 | :group 'landmark) |
178fc2d3 RS |
1270 | |
1271 | ||
1272 | ;;;_ + Randomizing functions | |
4d0143e6 JA |
1273 | ;;;_ - landmark-flip-a-coin () |
1274 | (defun landmark-flip-a-coin () | |
178fc2d3 RS |
1275 | (if (> (random 5000) 2500) |
1276 | -1 | |
1277 | 1)) | |
4d0143e6 JA |
1278 | ;;;_ : landmark-very-small-random-number () |
1279 | ;(defun landmark-very-small-random-number () | |
a7b88742 KH |
1280 | ; (/ |
1281 | ; (* (/ (random 900000) 900000.0) .0001))) | |
4d0143e6 JA |
1282 | ;;;_ : landmark-randomize-weights-for (direction) |
1283 | (defun landmark-randomize-weights-for (direction) | |
c0df1972 | 1284 | (mapc (lambda (target-direction) |
178fc2d3 | 1285 | (put direction |
a7b88742 | 1286 | target-direction |
4d0143e6 JA |
1287 | (* (landmark-flip-a-coin) (/ (random 10000) 10000.0)))) |
1288 | landmark-directions)) | |
1289 | ;;;_ : landmark-noise () | |
1290 | (defun landmark-noise () | |
1291 | (* (- (/ (random 30001) 15000.0) 1) landmark-nvar)) | |
1292 | ||
1293 | ;;;_ : landmark-fix-weights-for (direction) | |
1294 | (defun landmark-fix-weights-for (direction) | |
c0df1972 | 1295 | (mapc (lambda (target-direction) |
178fc2d3 | 1296 | (put direction |
a7b88742 | 1297 | target-direction |
4d0143e6 JA |
1298 | landmark-initial-wij)) |
1299 | landmark-directions)) | |
178fc2d3 RS |
1300 | |
1301 | ||
1302 | ;;;_ + Plotting functions | |
4d0143e6 JA |
1303 | ;;;_ - landmark-plot-internal (sym) |
1304 | (defun landmark-plot-internal (sym) | |
1305 | (landmark-plot-square (landmark-xy-to-index | |
178fc2d3 RS |
1306 | (get sym 'x) |
1307 | (get sym 'y)) | |
1308 | (get sym 'sym))) | |
4d0143e6 JA |
1309 | ;;;_ - landmark-plot-landmarks () |
1310 | (defun landmark-plot-landmarks () | |
1311 | (setq landmark-cx (/ landmark-board-width 2)) | |
1312 | (setq landmark-cy (/ landmark-board-height 2)) | |
178fc2d3 | 1313 | |
4d0143e6 JA |
1314 | (put 'landmark-n 'x landmark-cx) |
1315 | (put 'landmark-n 'y 1) | |
1316 | (put 'landmark-n 'sym 2) | |
178fc2d3 | 1317 | |
4d0143e6 JA |
1318 | (put 'landmark-tree 'x landmark-cx) |
1319 | (put 'landmark-tree 'y landmark-cy) | |
1320 | (put 'landmark-tree 'sym 6) | |
178fc2d3 | 1321 | |
4d0143e6 JA |
1322 | (put 'landmark-s 'x landmark-cx) |
1323 | (put 'landmark-s 'y landmark-board-height) | |
1324 | (put 'landmark-s 'sym 3) | |
178fc2d3 | 1325 | |
4d0143e6 JA |
1326 | (put 'landmark-w 'x 1) |
1327 | (put 'landmark-w 'y (/ landmark-board-height 2)) | |
1328 | (put 'landmark-w 'sym 5) | |
178fc2d3 | 1329 | |
4d0143e6 JA |
1330 | (put 'landmark-e 'x landmark-board-width) |
1331 | (put 'landmark-e 'y (/ landmark-board-height 2)) | |
1332 | (put 'landmark-e 'sym 4) | |
178fc2d3 | 1333 | |
4d0143e6 | 1334 | (mapc 'landmark-plot-internal '(landmark-n landmark-s landmark-e landmark-w landmark-tree))) |
178fc2d3 RS |
1335 | |
1336 | ||
1337 | ||
1338 | ;;;_ + Distance-calculation functions | |
1339 | ;;;_ - square (a) | |
1340 | (defun square (a) | |
1341 | (* a a)) | |
1342 | ||
1343 | ;;;_ - distance (x x0 y y0) | |
1344 | (defun distance (x x0 y y0) | |
1345 | (sqrt (+ (square (- x x0)) (square (- y y0))))) | |
1346 | ||
1347 | ;;;_ - calc-distance-of-robot-from (direction) | |
1348 | (defun calc-distance-of-robot-from (direction) | |
1349 | (put direction 'distance | |
1350 | (distance (get direction 'x) | |
4d0143e6 | 1351 | (landmark-index-to-x (landmark-point-square)) |
178fc2d3 | 1352 | (get direction 'y) |
4d0143e6 | 1353 | (landmark-index-to-y (landmark-point-square))))) |
178fc2d3 RS |
1354 | |
1355 | ;;;_ - calc-smell-internal (sym) | |
1356 | (defun calc-smell-internal (sym) | |
1357 | (let ((r (get sym 'r)) | |
1358 | (d (calc-distance-of-robot-from sym))) | |
1359 | (if (> (* 0.5 (- 1 (/ d r))) 0) | |
1360 | (* 0.5 (- 1 (/ d r))) | |
1361 | 0))) | |
1362 | ||
1363 | ||
178fc2d3 | 1364 | ;;;_ + Learning (neural) functions |
4d0143e6 | 1365 | (defun landmark-f (x) |
a7b88742 | 1366 | (cond |
4d0143e6 | 1367 | ((> x landmark-bound) landmark-bound) |
178fc2d3 RS |
1368 | ((< x 0.0) 0.0) |
1369 | (t x))) | |
1370 | ||
4d0143e6 | 1371 | (defun landmark-y (direction) |
121656e9 JB |
1372 | (put direction 'noise (landmark-noise)) |
1373 | (put direction 'y_t | |
1374 | (if (> (get direction 's) 0.0) | |
1375 | 1.0 | |
1376 | 0.0))) | |
178fc2d3 | 1377 | |
4d0143e6 | 1378 | (defun landmark-update-normal-weights (direction) |
c0df1972 | 1379 | (mapc (lambda (target-direction) |
178fc2d3 RS |
1380 | (put direction target-direction |
1381 | (+ | |
1382 | (get direction target-direction) | |
4d0143e6 | 1383 | (* landmark-c |
a7b88742 | 1384 | (- (get 'z 't) (get 'z 't-1)) |
178fc2d3 RS |
1385 | (get target-direction 'y_t) |
1386 | (get direction 'smell))))) | |
4d0143e6 | 1387 | landmark-directions)) |
a7b88742 | 1388 | |
4d0143e6 | 1389 | (defun landmark-update-naught-weights (direction) |
121656e9 | 1390 | (mapc (lambda (_target-direction) |
178fc2d3 | 1391 | (put direction 'w0 |
4d0143e6 | 1392 | (landmark-f |
178fc2d3 RS |
1393 | (+ |
1394 | (get direction 'w0) | |
4d0143e6 | 1395 | (* landmark-c-naught |
a7b88742 | 1396 | (- (get 'z 't) (get 'z 't-1)) |
178fc2d3 | 1397 | (get direction 'y_t)))))) |
4d0143e6 | 1398 | landmark-directions)) |
178fc2d3 RS |
1399 | |
1400 | ||
178fc2d3 RS |
1401 | ;;;_ + Statistics gathering and creating functions |
1402 | ||
4d0143e6 | 1403 | (defun landmark-calc-current-smells () |
c0df1972 | 1404 | (mapc (lambda (direction) |
178fc2d3 | 1405 | (put direction 'smell (calc-smell-internal direction))) |
4d0143e6 | 1406 | landmark-directions)) |
178fc2d3 | 1407 | |
4d0143e6 | 1408 | (defun landmark-calc-payoff () |
178fc2d3 | 1409 | (put 'z 't-1 (get 'z 't)) |
4d0143e6 | 1410 | (put 'z 't (calc-smell-internal 'landmark-tree)) |
178fc2d3 | 1411 | (if (= (- (get 'z 't) (get 'z 't-1)) 0.0) |
a464a6c7 | 1412 | (cl-incf landmark-no-payoff) |
4d0143e6 | 1413 | (setf landmark-no-payoff 0))) |
178fc2d3 | 1414 | |
4d0143e6 | 1415 | (defun landmark-store-old-y_t () |
c0df1972 | 1416 | (mapc (lambda (direction) |
178fc2d3 | 1417 | (put direction 'y_t-1 (get direction 'y_t))) |
4d0143e6 | 1418 | landmark-directions)) |
178fc2d3 RS |
1419 | |
1420 | ||
a7b88742 | 1421 | ;;;_ + Functions to move robot |
178fc2d3 | 1422 | |
4d0143e6 | 1423 | (defun landmark-confidence-for (target-direction) |
c0df1972 SM |
1424 | (apply '+ |
1425 | (get target-direction 'w0) | |
1426 | (mapcar (lambda (direction) | |
1427 | (* | |
1428 | (get direction target-direction) | |
1429 | (get direction 'smell))) | |
4d0143e6 | 1430 | landmark-directions))) |
178fc2d3 RS |
1431 | |
1432 | ||
4d0143e6 | 1433 | (defun landmark-calc-confidences () |
c0df1972 | 1434 | (mapc (lambda (direction) |
4d0143e6 JA |
1435 | (put direction 's (landmark-confidence-for direction))) |
1436 | landmark-directions)) | |
178fc2d3 | 1437 | |
4d0143e6 JA |
1438 | (defun landmark-move () |
1439 | (if (and (= (get 'landmark-n 'y_t) 1.0) (= (get 'landmark-s 'y_t) 1.0)) | |
178fc2d3 | 1440 | (progn |
4d0143e6 JA |
1441 | (mapc (lambda (dir) (put dir 'y_t 0)) landmark-ns) |
1442 | (if landmark-debug | |
a7b88742 | 1443 | (message "n-s normalization.")))) |
4d0143e6 | 1444 | (if (and (= (get 'landmark-w 'y_t) 1.0) (= (get 'landmark-e 'y_t) 1.0)) |
178fc2d3 | 1445 | (progn |
4d0143e6 JA |
1446 | (mapc (lambda (dir) (put dir 'y_t 0)) landmark-ew) |
1447 | (if landmark-debug | |
a7b88742 | 1448 | (message "e-w normalization")))) |
178fc2d3 | 1449 | |
c0df1972 | 1450 | (mapc (lambda (pair) |
178fc2d3 RS |
1451 | (if (> (get (car pair) 'y_t) 0) |
1452 | (funcall (car (cdr pair))))) | |
1453 | '( | |
4d0143e6 JA |
1454 | (landmark-n landmark-move-up) |
1455 | (landmark-s landmark-move-down) | |
1456 | (landmark-e forward-char) | |
1457 | (landmark-w backward-char))) | |
1458 | (landmark-plot-square (landmark-point-square) 1) | |
a464a6c7 | 1459 | (cl-incf landmark-number-of-moves) |
4d0143e6 JA |
1460 | (if landmark-output-moves |
1461 | (message "Moves made: %d" landmark-number-of-moves))) | |
178fc2d3 RS |
1462 | |
1463 | ||
4d0143e6 | 1464 | (defun landmark-random-move () |
a7b88742 | 1465 | (mapc |
c0df1972 | 1466 | (lambda (direction) (put direction 'y_t 0)) |
4d0143e6 JA |
1467 | landmark-directions) |
1468 | (dolist (direction (nth (random 8) landmark-8-directions)) | |
178fc2d3 | 1469 | (put direction 'y_t 1.0)) |
4d0143e6 | 1470 | (landmark-move)) |
178fc2d3 | 1471 | |
4d0143e6 | 1472 | (defun landmark-amble-robot () |
178fc2d3 | 1473 | (interactive) |
4d0143e6 | 1474 | (while (> (calc-distance-of-robot-from 'landmark-tree) 0) |
178fc2d3 | 1475 | |
4d0143e6 JA |
1476 | (landmark-store-old-y_t) |
1477 | (landmark-calc-current-smells) | |
178fc2d3 | 1478 | |
4d0143e6 JA |
1479 | (if (> landmark-no-payoff landmark-max-stall-time) |
1480 | (landmark-random-move) | |
178fc2d3 | 1481 | (progn |
4d0143e6 JA |
1482 | (landmark-calc-confidences) |
1483 | (mapc 'landmark-y landmark-directions) | |
1484 | (landmark-move))) | |
178fc2d3 | 1485 | |
4d0143e6 | 1486 | (landmark-calc-payoff) |
178fc2d3 | 1487 | |
4d0143e6 JA |
1488 | (mapc 'landmark-update-normal-weights landmark-directions) |
1489 | (mapc 'landmark-update-naught-weights landmark-directions) | |
1490 | (if landmark-debug | |
1491 | (landmark-weights-debug))) | |
1492 | (landmark-terminate-game nil)) | |
a7b88742 | 1493 | |
178fc2d3 | 1494 | |
4d0143e6 JA |
1495 | ;;;_ - landmark-start-robot () |
1496 | (defun landmark-start-robot () | |
1497 | "Signal to the Landmark program that you have played. | |
178fc2d3 RS |
1498 | You must have put the cursor on the square where you want to play. |
1499 | If the game is finished, this command requests for another game." | |
1500 | (interactive) | |
4d0143e6 | 1501 | (landmark-switch-to-window) |
178fc2d3 | 1502 | (cond |
4d0143e6 JA |
1503 | (landmark-emacs-is-computing |
1504 | (landmark-crash-game)) | |
1505 | ((not landmark-game-in-progress) | |
1506 | (landmark-prompt-for-other-game)) | |
178fc2d3 | 1507 | (t |
121656e9 | 1508 | (let (square) |
4d0143e6 | 1509 | (setq square (landmark-point-square)) |
178fc2d3 | 1510 | (cond ((null square) |
ce5a3ac0 | 1511 | (error "Your point is not on a square. Retry!")) |
4d0143e6 | 1512 | ((not (zerop (aref landmark-board square))) |
ce5a3ac0 | 1513 | (error "Your point is not on a free square. Retry!")) |
178fc2d3 RS |
1514 | (t |
1515 | (progn | |
4d0143e6 | 1516 | (landmark-plot-square square 1) |
178fc2d3 | 1517 | |
4d0143e6 JA |
1518 | (landmark-store-old-y_t) |
1519 | (landmark-calc-current-smells) | |
1520 | (put 'z 't (calc-smell-internal 'landmark-tree)) | |
178fc2d3 | 1521 | |
4d0143e6 | 1522 | (landmark-random-move) |
178fc2d3 | 1523 | |
4d0143e6 | 1524 | (landmark-calc-payoff) |
178fc2d3 | 1525 | |
4d0143e6 JA |
1526 | (mapc 'landmark-update-normal-weights landmark-directions) |
1527 | (mapc 'landmark-update-naught-weights landmark-directions) | |
1528 | (landmark-amble-robot) | |
178fc2d3 RS |
1529 | ))))))) |
1530 | ||
1531 | ||
178fc2d3 | 1532 | ;;;_ + Misc functions |
4d0143e6 JA |
1533 | ;;;_ - landmark-init (auto-start save-weights) |
1534 | (defvar landmark-tree-r "") | |
a7b88742 | 1535 | |
4d0143e6 | 1536 | (defun landmark-init (auto-start save-weights) |
178fc2d3 | 1537 | |
4d0143e6 | 1538 | (setq landmark-number-of-moves 0) |
178fc2d3 | 1539 | |
4d0143e6 | 1540 | (landmark-plot-landmarks) |
178fc2d3 | 1541 | |
4d0143e6 | 1542 | (if landmark-debug |
937e6a56 | 1543 | (save-current-buffer |
4d0143e6 | 1544 | (set-buffer (get-buffer-create "*landmark-w0*")) |
937e6a56 | 1545 | (erase-buffer) |
4d0143e6 JA |
1546 | (set-buffer (get-buffer-create "*landmark-moves*")) |
1547 | (set-buffer (get-buffer-create "*landmark-wts*")) | |
937e6a56 | 1548 | (erase-buffer) |
4d0143e6 | 1549 | (set-buffer (get-buffer-create "*landmark-y,s,noise*")) |
937e6a56 | 1550 | (erase-buffer) |
4d0143e6 | 1551 | (set-buffer (get-buffer-create "*landmark-smell*")) |
937e6a56 | 1552 | (erase-buffer) |
4d0143e6 | 1553 | (set-buffer (get-buffer-create "*landmark-blackbox*")) |
937e6a56 | 1554 | (erase-buffer) |
4d0143e6 | 1555 | (set-buffer (get-buffer-create "*landmark-distance*")) |
937e6a56 | 1556 | (erase-buffer))) |
178fc2d3 RS |
1557 | |
1558 | ||
4d0143e6 | 1559 | (landmark-set-landmark-signal-strengths) |
178fc2d3 | 1560 | |
4d0143e6 | 1561 | (dolist (direction landmark-directions) |
937e6a56 | 1562 | (put direction 'y_t 0.0)) |
178fc2d3 RS |
1563 | |
1564 | (if (not save-weights) | |
1565 | (progn | |
4d0143e6 JA |
1566 | (mapc 'landmark-fix-weights-for landmark-directions) |
1567 | (dolist (direction landmark-directions) | |
1568 | (put direction 'w0 landmark-initial-w0))) | |
178fc2d3 RS |
1569 | (message "Weights preserved for this run.")) |
1570 | ||
1571 | (if auto-start | |
1572 | (progn | |
4d0143e6 JA |
1573 | (landmark-goto-xy (1+ (random landmark-board-width)) (1+ (random landmark-board-height))) |
1574 | (landmark-start-robot)))) | |
a7b88742 | 1575 | |
178fc2d3 RS |
1576 | |
1577 | ;;;_ - something which doesn't work | |
1578 | ; no-a-worka!! | |
4c36be58 | 1579 | ;(defun landmark-sum-list (list) |
178fc2d3 | 1580 | ; (if (> (length list) 0) |
4d0143e6 | 1581 | ; (+ (car list) (landmark-sum-list (cdr list))) |
178fc2d3 RS |
1582 | ; 0)) |
1583 | ; this a worka! | |
1584 | ; (eval (cons '+ list)) | |
4d0143e6 | 1585 | ;;;_ - landmark-set-landmark-signal-strengths () |
a464a6c7 SM |
1586 | ;; on a screen higher than wide, I noticed that the robot would amble |
1587 | ;; left and right and not move forward. examining *landmark-blackbox* | |
1588 | ;; revealed that there was no scent from the north and south | |
1589 | ;; landmarks, hence, they need less factoring down of the effect of | |
1590 | ;; distance on scent. | |
178fc2d3 | 1591 | |
4d0143e6 JA |
1592 | (defun landmark-set-landmark-signal-strengths () |
1593 | (setq landmark-tree-r (* (sqrt (+ (square landmark-cx) (square landmark-cy))) 1.5)) | |
c0df1972 | 1594 | (mapc (lambda (direction) |
4d0143e6 JA |
1595 | (put direction 'r (* landmark-cx 1.1))) |
1596 | landmark-ew) | |
c0df1972 | 1597 | (mapc (lambda (direction) |
4d0143e6 JA |
1598 | (put direction 'r (* landmark-cy 1.1))) |
1599 | landmark-ns) | |
1600 | (put 'landmark-tree 'r landmark-tree-r)) | |
178fc2d3 RS |
1601 | |
1602 | ||
4d0143e6 | 1603 | ;;;_ + landmark-test-run () |
178fc2d3 | 1604 | |
998c789c | 1605 | ;;;###autoload |
4d0143e6 | 1606 | (defalias 'landmark-repeat 'landmark-test-run) |
998c789c | 1607 | ;;;###autoload |
4d0143e6 JA |
1608 | (defun landmark-test-run () |
1609 | "Run 100 Landmark games, each time saving the weights from the previous game." | |
178fc2d3 | 1610 | (interactive) |
4d0143e6 | 1611 | (landmark 1) |
178fc2d3 | 1612 | (dotimes (scratch-var 100) |
4d0143e6 | 1613 | (landmark 2))) |
178fc2d3 | 1614 | |
998c789c | 1615 | ;;;###autoload |
4d0143e6 JA |
1616 | (defun landmark (parg) |
1617 | "Start or resume an Landmark game. | |
178fc2d3 RS |
1618 | If a game is in progress, this command allows you to resume it. |
1619 | Here is the relation between prefix args and game options: | |
1620 | ||
1621 | prefix arg | robot is auto-started | weights are saved from last game | |
1622 | --------------------------------------------------------------------- | |
1623 | none / 1 | yes | no | |
1624 | 2 | yes | yes | |
1625 | 3 | no | yes | |
1626 | 4 | no | no | |
1627 | ||
4d0143e6 | 1628 | You start by moving to a square and typing \\[landmark-start-robot], |
998c789c | 1629 | if you did not use a prefix arg to ask for automatic start. |
178fc2d3 | 1630 | Use \\[describe-mode] for more info." |
65569e52 | 1631 | (interactive "p") |
178fc2d3 | 1632 | |
4d0143e6 JA |
1633 | (setf landmark-n nil landmark-m nil) |
1634 | (landmark-switch-to-window) | |
178fc2d3 | 1635 | (cond |
4d0143e6 JA |
1636 | (landmark-emacs-is-computing |
1637 | (landmark-crash-game)) | |
1638 | ((or (not landmark-game-in-progress) | |
1639 | (<= landmark-number-of-moves 2)) | |
1640 | (let ((max-width (landmark-max-width)) | |
1641 | (max-height (landmark-max-height))) | |
1642 | (or landmark-n (setq landmark-n max-width)) | |
1643 | (or landmark-m (setq landmark-m max-height)) | |
1644 | (cond ((< landmark-n 1) | |
178fc2d3 | 1645 | (error "I need at least 1 column")) |
4d0143e6 | 1646 | ((< landmark-m 1) |
178fc2d3 | 1647 | (error "I need at least 1 row")) |
4d0143e6 JA |
1648 | ((> landmark-n max-width) |
1649 | (error "I cannot display %d columns in that window" landmark-n))) | |
1650 | (if (and (> landmark-m max-height) | |
1651 | (not (eq landmark-m landmark-saved-board-height)) | |
178fc2d3 | 1652 | ;; Use EQ because SAVED-BOARD-HEIGHT may be nil |
4d0143e6 JA |
1653 | (not (y-or-n-p (format "Do you really want %d rows? " landmark-m)))) |
1654 | (setq landmark-m max-height))) | |
1655 | (if landmark-one-moment-please | |
a7b88742 | 1656 | (message "One moment, please...")) |
4d0143e6 JA |
1657 | (landmark-start-game landmark-n landmark-m) |
1658 | (eval (cons 'landmark-init | |
a7b88742 KH |
1659 | (cond |
1660 | ((= parg 1) '(t nil)) | |
1661 | ((= parg 2) '(t t)) | |
1662 | ((= parg 3) '(nil t)) | |
1663 | ((= parg 4) '(nil nil)) | |
1664 | (t '(nil t)))))))) | |
1665 | ||
1666 | ||
178fc2d3 RS |
1667 | ;;;_ + Local variables |
1668 | ||
5a6c1d87 | 1669 | ;;; The following `allout-layout' local variable setting: |
178fc2d3 RS |
1670 | ;;; - closes all topics from the first topic to just before the third-to-last, |
1671 | ;;; - shows the children of the third to last (config vars) | |
1672 | ;;; - and the second to last (code section), | |
1673 | ;;; - and closes the last topic (this local-variables section). | |
1674 | ;;;Local variables: | |
5a6c1d87 | 1675 | ;;;allout-layout: (0 : -1 -1 0) |
178fc2d3 RS |
1676 | ;;;End: |
1677 | ||
7130b08f KH |
1678 | (provide 'landmark) |
1679 | ||
178fc2d3 | 1680 | ;;; landmark.el ends here |