--- /dev/null
+;;; sokoban.el --- Play the Sokoban game in emacs
+;; $Id: sokoban.el,v 1.23 2005/06/26 12:14:29 wilde Exp $
+
+;; Copyright (C) 2005 Sascha Wilde
+
+;; Version: 1.23
+;; Author: Sascha Wilde <swildeNOSPAMsha-bang.de>
+;; Keywords: games
+
+;; This file is free software; you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation; either version 2, or (at your option)
+;; any later version.
+
+;; This file is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+;; GNU General Public License for more details.
+
+;; You should have received a copy of the GNU General Public License
+;; along with GNU Emacs; see the file COPYING. If not, write to
+;; the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+;; Boston, MA 02111-1307, USA.
+
+;;; Commentary:
+
+;; Play Sokoban in emacs.
+
+;;; Code:
+
+(require 'cl)
+
+(defconst sokoban-version "0.14.1"
+ "Version string for this version of GNU-Emacs Sokoban.")
+
+(defconst sokoban-left '(-1 . 0))
+(defconst sokoban-right '( 1 . 0))
+(defconst sokoban-down '( 0 . 1))
+(defconst sokoban-up '( 0 . -1))
+
+(defgroup sokoban nil
+ "Sokoban game for GNU Emacs."
+ :prefix "sokoban-"
+ :group 'games)
+
+(defcustom sokoban-playerfiles-dir "/tmp/"
+ "*The directory holding the sokoban playerfiles.
+Sokoban saves the information from `sokoban-player-stats' to a
+playerfile in this directory. If you don't want to use
+playerfiles, set value to NIL."
+ :group 'sokoban
+ :type 'string)
+
+(defvar sokoban-player-stats nil
+ "Alist with player specific information as saved in the playerfiles.
+This holds the best results for each finished level and the
+players current level.")
+
+(defconst sokoban-playerfile-prefix "sokoban-pl-"
+ "The prefix used for sokoban playerfiles.")
+
+(defvar sokoban-best-players-list nil
+ "Alist with the best result for each level
+generated from all available playerfiles, if `sokoban-playerfiles-dir'
+is none nil.")
+
+(defcustom sokoban-levels-dir "/usr/local/share/sokoban-levels"
+ "*Directory holding the sokoban level files"
+ :group 'sokoban
+ :type 'string)
+
+(defcustom sokoban-levels-basename "sokoban-lvl."
+ "*Basename of the sokoban level files"
+ :group 'sokoban
+ :type 'string)
+
+(defcustom sokoban-start-level 1
+ "*Defines the level-numver to start with.
+This might be overwritten by the last level played,
+as saved in the playerfile."
+ :group 'sokoban
+ :type 'integer)
+
+(defcustom sokoban-undo-penalty 10
+ "*Defines the number of moves one undo costs."
+ :group 'sokoban
+ :type 'integer)
+
+(defcustom sokoban-player-char ?@
+ "*Defines the character used to diplay the player."
+ :group 'sokoban
+ :type 'character)
+
+(defcustom sokoban-boulder-char ?o
+ "*Defines the character used to diplay the boulders."
+ :group 'sokoban
+ :type 'character)
+
+(defcustom sokoban-pit-char ?.
+ "*Defines the character used to diplay the pits."
+ :group 'sokoban
+ :type 'character)
+
+(defcustom sokoban-filled-pit-char ?*
+ "*Defines the character used to diplay pits with boulders in level-files."
+ :group 'sokoban
+ :type 'character)
+
+(defface sokoban-boulder-face
+ '((((class color) (background dark))
+ (:foreground "yellow"
+ :weight bold))
+ (((class color) (background light))
+ (:foreground "goldenrod4"
+ :weight bold)))
+ "*Face used display boulders in sokoban game."
+ :group 'sokoban)
+
+(defface sokoban-pit-face
+ '((t (:foreground "blue"
+ :weight bold)))
+ "*Face used display pits in sokoban game."
+ :group 'sokoban)
+
+(defface sokoban-player-face
+ '((t (:foreground "orange red")))
+ "*Face used display player in sokoban game."
+ :group 'sokoban)
+
+(defvar sokoban-boulder-face 'sokoban-boulder-face)
+(defvar sokoban-pit-face 'sokoban-pit-face)
+(defvar sokoban-player-face 'sokoban-player-face)
+
+(defconst sokoban-font-lock-keywords
+ `((,(regexp-quote (char-to-string sokoban-boulder-char))
+ . sokoban-boulder-face)
+ (,(regexp-quote (char-to-string sokoban-pit-char))
+ . sokoban-pit-face)
+ (,(regexp-quote (char-to-string sokoban-player-char))
+ . sokoban-player-face))
+ "Stuff to highlight in sokoban.")
+
+(defvar sokoban-mode-map nil
+ "Keymap for sokoban.")
+(setq sokoban-mode-map (make-sparse-keymap))
+(define-key sokoban-mode-map [up] 'sokoban-move-up)
+(define-key sokoban-mode-map [down] 'sokoban-move-down)
+(define-key sokoban-mode-map [left] 'sokoban-move-left)
+(define-key sokoban-mode-map [right] 'sokoban-move-right)
+(define-key sokoban-mode-map "u" 'sokoban-undo)
+(define-key sokoban-mode-map "b" 'sokoban-display-best-players-list)
+(define-key sokoban-mode-map ">" 'sokoban-goto-next-level)
+(define-key sokoban-mode-map "<" 'sokoban-goto-prev-level)
+
+(defvar sokoban-pits-list nil
+ "List of positions of all pits in buffer. Buffer-local in sokoban-mode")
+(defvar sokoban-filled-pits nil
+ "Number of pits filled. Buffer-local in sokoban-mode.")
+(defvar sokoban-level nil
+ "Number of current level. Buffer-local in sokoban games.")
+(defvar sokoban-moves nil
+ "Number of moves made by player. Buffer-local in sokoban-mode.")
+(defvar sokoban-player-pos nil
+ "Current position of player. Buffer-local in sokoban-mode.")
+(defvar sokoban-player-last-pos nil
+ "Backup of last player position. Buffer-local in sokoban-mode.")
+(defvar sokoban-game-info nil
+ "String with infos to the current game. Buffer-local in sokoban-mode.")
+(defvar sokoban-level-best-string nil
+ "String holding the best result for the current level as displayed.")
+
+(defun sokoban-forward-line (arg)
+ "Like forward-line but preserve the current column.
+The implementation is rather simple, as we can make certain
+assumptions about the structure of a valid sokoban level buffer."
+ (let ((goal-column (current-column)))
+ (forward-line arg)
+ (move-to-column goal-column)))
+
+(defun sokoban-paint (char)
+ "Insert char at point, overwriting the old char.
+Extreme simple, but sufficient for our needs."
+ (let ((inhibit-read-only t))
+ (delete-char 1)
+ (insert (char-to-string char)))
+ t)
+
+(defun sokoban-update-score (level moves)
+ "Save number of moves for level to `sokoban-player-stats'."
+ (let* ((level-name (concat sokoban-levels-basename
+ (number-to-string level)))
+ (entry (assoc level-name sokoban-player-stats)))
+ (if entry
+ (or (< (cdr entry) moves) (setcdr entry moves))
+ (push (cons level-name moves) sokoban-player-stats))))
+
+(defun sokoban-get-level-best (level &optional list)
+ "Get best result for level from `sokoban-player-stats'."
+ (if level
+ (let* ((level-name (concat sokoban-levels-basename
+ (number-to-string level)))
+ (entry (assoc level-name
+ (or list sokoban-player-stats))))
+ (if entry
+ (cdr entry)))))
+
+(defun sokoban-update-current-level (level)
+ "Save current level to `sokoban-player-stats'."
+ (let ((entry (assoc :level sokoban-player-stats)))
+ (if entry
+ (setcdr entry level)
+ (push (cons :level level) sokoban-player-stats))))
+
+(defun sokoban-save-playerfile ()
+ "Save `sokoban-player-stats' to playerfile."
+ (if sokoban-playerfiles-dir
+ (let ((filename (concat sokoban-playerfiles-dir "/"
+ sokoban-playerfile-prefix
+ (user-login-name))))
+ (with-temp-file filename
+ (prin1 sokoban-player-stats (current-buffer)))
+ (set-file-modes filename #o644))))
+
+(defun sokoban-load-playerfile ()
+ "Load `sokoban-player-stats' from playerfile."
+ (if sokoban-playerfiles-dir
+ (let ((filename (concat sokoban-playerfiles-dir "/"
+ sokoban-playerfile-prefix
+ (user-login-name))))
+ (if (file-readable-p filename)
+ (with-temp-buffer
+ (insert-file-contents filename nil)
+ (setq sokoban-player-stats
+ (read (current-buffer))))))))
+
+(defun sokoban-gen-best-players-list ()
+ (if sokoban-playerfiles-dir
+ (let ((files (directory-files sokoban-playerfiles-dir
+ t (concat "^" sokoban-playerfile-prefix)
+ t)))
+ (dolist (filename files)
+ (if (file-readable-p filename)
+ (with-temp-buffer
+ (insert-file-contents filename nil)
+ (let ((stats (read (current-buffer)))
+ (player (substring (file-name-nondirectory filename)
+ (1- (length sokoban-levels-basename)))))
+ (dolist (entry stats)
+ (let* ((level-name (car entry))
+ (best-entry (assoc level-name
+ sokoban-best-players-list)))
+ (if (and (stringp level-name)
+ (compare-strings level-name
+ 0 (length sokoban-levels-basename)
+ sokoban-levels-basename
+ 0 nil))
+ (cond ((and best-entry
+ (> (cadr best-entry) (cdr entry)))
+ (setcdr best-entry
+ (cons (cdr entry) player)))
+ ((or (not best-entry)
+ (= (cadr best-entry) (cdr entry)))
+ (push (cons level-name
+ (cons (cdr entry) player))
+ sokoban-best-players-list)))))))))))))
+
+
+(defun sokoban-display-best-players-list ()
+ (interactive)
+ (if sokoban-best-players-list
+ (progn
+ (switch-to-buffer (get-buffer-create "*Sokoban Best Players*"))
+ (erase-buffer)
+ (dolist (entry sokoban-best-players-list)
+ (let ((level-name (car entry)))
+ (if (and (stringp level-name)
+ (compare-strings level-name
+ 0 (length sokoban-levels-basename)
+ sokoban-levels-basename
+ 0 nil))
+ (insert (format "%4s: %5d - %s\n"
+ (substring level-name
+ (length sokoban-levels-basename))
+ (cadr entry)
+ (cddr entry))))))
+ (sort-columns nil (point-min) (point-max)))
+ (error "No best players list available")))
+
+(defun sokoban-refresh-pits ()
+ "Refresh and evaluate pits."
+ (save-excursion
+ (setq sokoban-filled-pits 0)
+ (dolist (pos sokoban-pits-list)
+ (goto-char pos)
+ (let ((char (char-after)))
+ (cond ((= char 32)
+ (sokoban-paint sokoban-pit-char))
+ ((= char sokoban-boulder-char)
+ (setq sokoban-filled-pits
+ (1+ sokoban-filled-pits)))))))
+ (if (= sokoban-filled-pits (length sokoban-pits-list))
+ (sokoban-level-finished)))
+
+(defun sokoban-load-next-level (&optional arg)
+ "Load next level, with negative arg load previous level.
+If requested level doesn't exist, load `sokoban-start-level'."
+ (when (bound-and-true-p sokoban-level)
+ (setq sokoban-level (if (and arg (< arg 0))
+ (1- sokoban-level)
+ (1+ sokoban-level)))
+ (or (sokoban-load-level sokoban-level)
+ (progn
+ (setq sokoban-level sokoban-start-level)
+ (sokoban-load-level sokoban-level)))
+ (sokoban-init-level)
+ t))
+
+(defun sokoban-level-finished ()
+ (message
+ (format "You finished Level %d in %d moves. Congratulations!"
+ (or (bound-and-true-p sokoban-level) 0)
+ sokoban-moves))
+ (when (bound-and-true-p sokoban-level)
+ (sokoban-update-score sokoban-level sokoban-moves))
+ (when (sokoban-load-next-level)
+ (sokoban-update-current-level sokoban-level)
+ (sokoban-save-playerfile)))
+
+(defun sokoban-find-player ()
+ (goto-char (point-min))
+ (search-forward (char-to-string sokoban-player-char))
+ (forward-char -1)
+ (setq sokoban-player-pos (point)))
+
+(defun sokoban-init-pits ()
+ "Reset and init `sokoban-pits-list'"
+ (setq sokoban-pits-list nil)
+ (save-excursion
+ (goto-char (point-min))
+ (while (search-forward (char-to-string sokoban-pit-char) nil t)
+ (push (1- (point)) sokoban-pits-list))
+ (goto-char (point-min))
+ (while (search-forward (char-to-string sokoban-filled-pit-char) nil t)
+ (forward-char -1)
+ (push (point) sokoban-pits-list)
+ (sokoban-paint sokoban-boulder-char))))
+
+
+(defun sokoban-move-player-here ()
+ "Move player to point.
+Move player char to point, repaint pits and evaluate game status."
+ (setq sokoban-player-pos (point))
+ (sokoban-paint sokoban-player-char)
+ (goto-char sokoban-player-last-pos)
+ (sokoban-paint 32)
+ (setq sokoban-moves (1+ sokoban-moves))
+ (sokoban-refresh-pits)
+ (sokoban-update-mode-line))
+
+(defun sokoban-move-player (direction)
+ (goto-char sokoban-player-pos)
+ (setq sokoban-player-last-pos (point))
+ (forward-char (car direction))
+ (sokoban-forward-line (cdr direction))
+ (cond ((or (= (char-after) 32) ; 32 is space
+ (= (char-after) sokoban-pit-char))
+ (sokoban-move-player-here))
+ ((= (char-after) sokoban-boulder-char)
+ (if (sokoban-move-boulder direction)
+ (sokoban-move-player-here)
+ (message "Can't move boulder!")))
+ (t (message "Ouch!")))
+ (goto-char sokoban-player-pos))
+
+(defun sokoban-move-boulder (direction)
+ "Move boulder at point into direction, if possible."
+ (let ((last-pos (point)))
+ (forward-char (car direction))
+ (sokoban-forward-line (cdr direction))
+ (prog1
+ (if (or (= (char-after) 32) ; 32 is space
+ (= (char-after) sokoban-pit-char))
+ (sokoban-paint sokoban-boulder-char)
+ nil)
+ (goto-char last-pos))))
+
+(defun sokoban-move-up ()
+ "Move the player up if possible."
+ (interactive)
+ (sokoban-move-player sokoban-up))
+
+(defun sokoban-move-down ()
+ "Move the player down if possible."
+ (interactive)
+ (sokoban-move-player sokoban-down))
+
+(defun sokoban-move-left ()
+ "Move the player left if possible."
+ (interactive)
+ (sokoban-move-player sokoban-left))
+
+(defun sokoban-move-right ()
+ "Move the player right if possible."
+ (interactive)
+ (sokoban-move-player sokoban-right))
+
+(defun sokoban-goto-next-level ()
+ "Jump to next level."
+ (interactive)
+ (sokoban-load-next-level))
+
+(defun sokoban-goto-prev-level ()
+ "Jump to previous level."
+ (interactive)
+ (sokoban-load-next-level -1))
+
+(defun sokoban-update-mode-line ()
+ (setq sokoban-game-info (format "Level:%d [%d|%d] -- Moves:%d%s"
+ (or (bound-and-true-p sokoban-level)
+ 0)
+ sokoban-filled-pits
+ (length sokoban-pits-list)
+ sokoban-moves
+ (or sokoban-level-best-string ""))))
+
+(defun sokoban-undo ()
+ (interactive)
+ (let ((inhibit-read-only t))
+ (undo))
+ (sokoban-find-player)
+ (setq sokoban-moves (+ sokoban-moves sokoban-undo-penalty))
+ (sokoban-refresh-pits)
+ (sokoban-update-mode-line))
+
+(defun sokoban-load-level (num)
+ "Load sokoban level num."
+ (let ((inhibit-read-only t)
+ (level-file
+ (concat sokoban-levels-dir "/"
+ sokoban-levels-basename (number-to-string num))))
+ (when (file-exists-p level-file)
+ (insert-file-contents level-file nil nil nil t)
+ t)))
+
+(defun sokoban-init-level ()
+ "Initialize level elements."
+ (sokoban-init-pits)
+ (sokoban-refresh-pits)
+ (setq sokoban-moves 0)
+ (setq sokoban-level-best-string
+ (let ((best (sokoban-get-level-best sokoban-level))
+ (world-best (if sokoban-best-players-list
+ (sokoban-get-level-best
+ sokoban-level
+ sokoban-best-players-list))))
+ (if (or best world-best)
+ (format " [Best:%s%s]"
+ (if best (number-to-string best) "")
+ (if (and world-best
+ (or (not best)
+ (< (car world-best) best)))
+ (format " (%s:%d)"
+ (cdr world-best) (car world-best))
+ "")))))
+ (sokoban-update-mode-line)
+ (sokoban-find-player)
+ (buffer-disable-undo (current-buffer))
+ (buffer-enable-undo))
+
+;;;###autoload
+(defun sokoban-mode ()
+ "Major mode to play sokoban.
+
+Commands:
+\\{sokoban-mode-map}"
+ (interactive)
+ (kill-all-local-variables)
+ (toggle-read-only 1)
+ (use-local-map sokoban-mode-map)
+ (make-local-variable 'font-lock-defaults)
+ (setq font-lock-defaults '(sokoban-font-lock-keywords
+ t nil nil beginning-of-line))
+ (setq cursor-type nil)
+ (make-local-variable 'sokoban-level)
+ (make-local-variable 'sokoban-player-pos)
+ (make-local-variable 'sokoban-player-last-pos)
+ (make-local-variable 'sokoban-moves)
+ (make-local-variable 'sokoban-pits-list)
+ (make-local-variable 'sokoban-filled-pits)
+ (make-local-variable 'sokoban-game-info)
+ (setq major-mode 'sokoban-mode)
+ (setq mode-name "Sokoban")
+ (setq header-line-format
+ (list "Sokoban v" 'sokoban-version
+ " -- " 'sokoban-game-info))
+ (sokoban-init-level)
+ (run-hooks 'sokoban-mode-hook))
+
+;;;###autoload
+(defun sokoban ()
+ "Play sokoban."
+ (interactive)
+ (switch-to-buffer (generate-new-buffer "*Sokoban*"))
+ (sokoban-load-playerfile)
+ (setq sokoban-best-players-list nil)
+ (sokoban-gen-best-players-list)
+ (let ((level (or (cdr (assoc :level sokoban-player-stats))
+ sokoban-start-level)))
+ (sokoban-load-level level)
+ (sokoban-mode)
+ (setq sokoban-level level))
+ (sokoban-init-level)
+ (sokoban-update-mode-line))
+
+(provide 'sokoban)
+;;; sokoban.el ends here
+++ /dev/null
-;;; sokoban.el --- Implementation of Sokoban for Emacs.
-
-;; Copyright (C) 1998, 2013, 2017 Free Software Foundation, Inc.
-
-;; Author: Glynn Clements <glynn.clementsNOSPAMxemacs.org>
-;; Maintainer: Dieter Deyke <dieter.deykeNOSPAMgmail.com>
-;; Version: 1.4.6
-;; Package-Requires: ((emacs "23.1"))
-;; Created: 1997-09-11
-;; Keywords: games
-;; Package-Type: multi
-
-;; This file is part of XEmacs.
-
-;; XEmacs is free software; you can redistribute it and/or modify it
-;; under the terms of the GNU General Public License as published by
-;; the Free Software Foundation; either version 3 of the License, or
-;; (at your option) any later version.
-
-;; XEmacs is distributed in the hope that it will be useful, but
-;; WITHOUT ANY WARRANTY; without even the implied warranty of
-;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-;; General Public License for more details.
-
-;; You should have received a copy of the GNU General Public License
-;; along with XEmacs; see the file COPYING. If not, write to the Free
-;; Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
-;; 02111-1307, USA.
-
-;;; Synched up with: Not synched.
-
-;;; Commentary:
-
-;; Modified: 1998-01-09, conditionalised use of locate-data-directory
-;; Modified: 1998-01-27, added mouse interface code
-;; (provided by Sean MacLennan <bn932NOSPAMfreenet.carleton.ca>
-;; Modified: 1998-02-06, fixed bug, where sokoban-done wasn't reset to
-;; zero in sokoban-restart-level
-;; Modified: 1998-02-27, patches from Hrvoje Niksic
-;; added bounds check to sokoban-goto-level
-;; added popup menu
-;; display level and score in modeline
-;; Modified: 1998-06-04, added `undo' feature
-;; added number of blocks done/total to score and modeline
-;; Modified: 2003-06-14, update email address, remove URL
-
-;; The game is based upon XSokoban, by
-;; Michael Bischoff <mbiNOSPAMmo.math.nat.tu-bs.de>
-
-;; The levels and some of the pixmaps were
-;; taken directly from XSokoban
-
-;;; Code:
-
-(eval-when-compile
- (require 'cl))
-
-(require 'gamegrid)
-(require 'xml)
-
-;; ;;;;;;;;;;;;; customization variables ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
-
-(defvar sokoban-use-glyphs t
- "Non-nil means use glyphs when available.")
-
-(defvar sokoban-use-color t
- "Non-nil means use color when available.")
-
-(defvar sokoban-font "-*-courier-medium-r-*-*-*-200-100-75-*-*-iso8859-*"
- "Name of the font used in X mode.")
-
-(defvar sokoban-buffer-name "*Sokoban*")
-
-(defvar sokoban-level-file
- (if (fboundp 'locate-data-file)
- (locate-data-file "sokoban.levels")
- (or (locate-library "sokoban.levels")
- (let ((file (expand-file-name
- "sokoban.levels"
- (if load-file-name
- (file-name-directory load-file-name)))))
- (and (file-exists-p file) file))
- (expand-file-name "sokoban.levels" data-directory))))
-
-(defvar sokoban-width)
-(defvar sokoban-height)
-
-(defvar sokoban-buffer-width)
-(defvar sokoban-buffer-height)
-
-(defvar sokoban-score-x)
-(defvar sokoban-score-y)
-
-(defvar sokoban-level-data nil)
-
-(defconst sokoban-state-filename (locate-user-emacs-file "sokoban-state"))
-
-;; ;;;;;;;;;;;;; constants ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
-
-(defconst sokoban-floor-xpm "\
-/* XPM */
-static char * floor_xpm[] = {
-\"32 32 1 1\",
-\" c None\",
-\" \",
-\" \",
-\" \",
-\" \",
-\" \",
-\" \",
-\" \",
-\" \",
-\" \",
-\" \",
-\" \",
-\" \",
-\" \",
-\" \",
-\" \",
-\" \",
-\" \",
-\" \",
-\" \",
-\" \",
-\" \",
-\" \",
-\" \",
-\" \",
-\" \",
-\" \",
-\" \",
-\" \",
-\" \",
-\" \",
-\" \",
-\" \",
-};
-")
-
-(defconst sokoban-target-xpm "\
-/* XPM */
-static char * target_xpm[] = {
-\"32 32 3 1\",
-\" c None\",
-\". c black\",
-\"X c green\",
-\" \",
-\" \",
-\" \",
-\" \",
-\" \",
-\" \",
-\" ............ \",
-\" .XXXXXXXXXX. \",
-\" .XXXXXXXX. \",
-\" .XXXXXX. \",
-\" .. .XXXX. .. \",
-\" .X. .XX. .X. \",
-\" .XX. .. .XX. \",
-\" .XXX. .XXX. \",
-\" .XXXX. .XXXX. \",
-\" .XXXXX. .XXXXX. \",
-\" .XXXXX. .XXXXX. \",
-\" .XXXX. .XXXX. \",
-\" .XXX. .XXX. \",
-\" .XX. .. .XX. \",
-\" .X. .XX. .X. \",
-\" .. .XXXX. .. \",
-\" .XXXXXX. \",
-\" .XXXXXXXX. \",
-\" .XXXXXXXXXX. \",
-\" ............ \",
-\" \",
-\" \",
-\" \",
-\" \",
-\" \",
-\" \",
-};
-")
-
-(defconst sokoban-wall-xpm "\
-/* XPM */
-static char * wall_xpm[] = {
-\"32 32 2 1\",
-\" c white\",
-\". c SteelBlue\",
-\" .............................. \",
-\". ............................ .\",
-\".. .......................... . \",
-\"... ........................ . .\",
-\".... . . \",
-\".... ...................... . .\",
-\".... ...................... . . \",
-\".... ...................... . .\",
-\".... ...................... . . \",
-\".... ...................... . .\",
-\".... ...................... . . \",
-\".... ...................... . .\",
-\".... ...................... . . \",
-\".... ...................... . .\",
-\".... ...................... . . \",
-\".... ...................... . .\",
-\".... ...................... . . \",
-\".... ...................... . .\",
-\".... ...................... . . \",
-\".... ...................... . .\",
-\".... ...................... . . \",
-\".... ...................... . .\",
-\".... ...................... . . \",
-\".... ...................... . .\",
-\".... ...................... . . \",
-\".... ...................... . .\",
-\".... ...................... . . \",
-\".... . .\",
-\"... . . . . . . . . . . . . . \",
-\".. . . . . . . . . . . . . . .\",
-\". . . . . . . . . . . . . . . \",
-\" . . . . . . . . . . . . . . . \",
-};
-")
-
-(defconst sokoban-block-xpm "\
-/* XPM */
-static char * block_xpm[] = {
-\"32 32 3 1\",
-\" c None\",
-\". c black\",
-\"X c yellow\",
-\"............................. \",
-\".XXXXXXXXXXXXXXXXXXXXXXXXXXX. \",
-\".XXXXXXXXXXXXXXXXXXXXXXXXXXX.. \",
-\".XXXXXXXXXXXXXXXXXXXXXXXXXXX.. \",
-\".XXXXXXXXXXXXXXXXXXXXXXXXXXX.X. \",
-\".XXXXXXXXXXXXXXXXXXXXXXXXXXX.X. \",
-\".XXXXXXXXXXXXXXXXXXXXXXXXXXX.XX.\",
-\".XXXXXXXXXXXXXXXXXXXXXXXXXXX.XX.\",
-\".XXXXXXXXXXXXXXXXXXXXXXXXXXX.XX.\",
-\".XXXXXXXXXXXXXXXXXXXXXXXXXXX.XX.\",
-\".XXXXXXXXXXXXXXXXXXXXXXXXXXX.XX.\",
-\".XXXXXXXXXXXXXXXXXXXXXXXXXXX.XX.\",
-\".XXXXXXXXXXXXXXXXXXXXXXXXXXX.XX.\",
-\".XXXXXXXXXXXXXXXXXXXXXXXXXXX.XX.\",
-\".XXXXXXXXXXXXXXXXXXXXXXXXXXX.XX.\",
-\".XXXXXXXXXXXXXXXXXXXXXXXXXXX.XX.\",
-\".XXXXXXXXXXXXXXXXXXXXXXXXXXX.XX.\",
-\".XXXXXXXXXXXXXXXXXXXXXXXXXXX.XX.\",
-\".XXXXXXXXXXXXXXXXXXXXXXXXXXX.XX.\",
-\".XXXXXXXXXXXXXXXXXXXXXXXXXXX.XX.\",
-\".XXXXXXXXXXXXXXXXXXXXXXXXXXX.XX.\",
-\".XXXXXXXXXXXXXXXXXXXXXXXXXXX.XX.\",
-\".XXXXXXXXXXXXXXXXXXXXXXXXXXX.XX.\",
-\".XXXXXXXXXXXXXXXXXXXXXXXXXXX.XX.\",
-\".............................XX.\",
-\".XXXXXXXXXXXXXXXXXXXXXXXXXXX.XX.\",
-\" .XXXXXXXXXXXXXXXXXXXXXXXXXXX.X.\",
-\" .XXXXXXXXXXXXXXXXXXXXXXXXXXX.X.\",
-\" .XXXXXXXXXXXXXXXXXXXXXXXXXXX..\",
-\" .XXXXXXXXXXXXXXXXXXXXXXXXXXX..\",
-\" .XXXXXXXXXXXXXXXXXXXXXXXXXXX.\",
-\" .............................\",
-};
-")
-
-(defconst sokoban-block-on-target-xpm "\
-/* XPM */
-static char * block_on_target_xpm[] = {
-\"32 32 3 1\",
-\" c None\",
-\". c black\",
-\"X c green\",
-\"............................. \",
-\".XXXXXXXXXXXXXXXXXXXXXXXXXXX. \",
-\".XXXXXXXXXXXXXXXXXXXXXXXXXXX.. \",
-\".XXXXXXXXXXXXXXXXXXXXXXXXXXX.. \",
-\".XXXXXXXXXXXXXXXXXXXXXXXXXXX.X. \",
-\".XXXXXXXXXXXXXXXXXXXXXXXXXXX.X. \",
-\".XXXXXXXXXXXXXXXXXXXXXXXXXXX.XX.\",
-\".XXXXXXXXXXXXXXXXXXXXXXXXXXX.XX.\",
-\".XXXXXXXXXXXXXXXXXXXXXXXXXXX.XX.\",
-\".XXXXXXXXXXXXXXXXXXXXXXXXXXX.XX.\",
-\".XXXXXXXXXXXXXXXXXXXXXXXXXXX.XX.\",
-\".XXXXXXXXXXXXXXXXXXXXXXXXXXX.XX.\",
-\".XXXXXXXXXXXXXXXXXXXXXXXXXXX.XX.\",
-\".XXXXXXXXXXXXXXXXXXXXXXXXXXX.XX.\",
-\".XXXXXXXXXXXXXXXXXXXXXXXXXXX.XX.\",
-\".XXXXXXXXXXXXXXXXXXXXXXXXXXX.XX.\",
-\".XXXXXXXXXXXXXXXXXXXXXXXXXXX.XX.\",
-\".XXXXXXXXXXXXXXXXXXXXXXXXXXX.XX.\",
-\".XXXXXXXXXXXXXXXXXXXXXXXXXXX.XX.\",
-\".XXXXXXXXXXXXXXXXXXXXXXXXXXX.XX.\",
-\".XXXXXXXXXXXXXXXXXXXXXXXXXXX.XX.\",
-\".XXXXXXXXXXXXXXXXXXXXXXXXXXX.XX.\",
-\".XXXXXXXXXXXXXXXXXXXXXXXXXXX.XX.\",
-\".XXXXXXXXXXXXXXXXXXXXXXXXXXX.XX.\",
-\".............................XX.\",
-\".XXXXXXXXXXXXXXXXXXXXXXXXXXX.XX.\",
-\" .XXXXXXXXXXXXXXXXXXXXXXXXXXX.X.\",
-\" .XXXXXXXXXXXXXXXXXXXXXXXXXXX.X.\",
-\" .XXXXXXXXXXXXXXXXXXXXXXXXXXX..\",
-\" .XXXXXXXXXXXXXXXXXXXXXXXXXXX..\",
-\" .XXXXXXXXXXXXXXXXXXXXXXXXXXX.\",
-\" .............................\",
-};
-")
-
-(defconst sokoban-player-xpm "\
-/* XPM */
-static char * player_xpm[] = {
-\"32 32 3 1\",
-\" c None\",
-\"o c white\",
-\". c black\",
-\" \",
-\" \",
-\" \",
-\" oooooooo \",
-\" o......o \",
-\" o.oooooo.o \",
-\" o.oooooo.o \",
-\" o.oooooooo.o \",
-\" o.o..oo..o.o \",
-\" o.oooooooo.o \",
-\" oo.o....o.oo \",
-\" oo..oo..oo..oo \",
-\" o....o..o....o \",
-\" o.o..o..o..o.o \",
-\" o.o...oo...o.o \",
-\" o.oo........oo.o \",
-\" o.oo........oo.o \",
-\" o.ooo........ooo.o \",
-\" o.ooo........ooo.o \",
-\" o.ooo........ooo.o \",
-\" o.oo........oo.o \",
-\" o.oo........oo.o \",
-\" o.o..........o.o \",
-\" o............o \",
-\" o..........o \",
-\" o........o \",
-\" o.o.oooo.o.o \",
-\" o.....oo.....o \",
-\" o......oo......o \",
-\" o.......oo.......o \",
-\" o..o..o..oo.oo..o..o \",
-\" oooooooooooooooooooo \",
-};
-")
-
-(defconst sokoban-player-on-target-xpm "\
-/* XPM */
-static char * player_on_target_xpm[] = {
-\"32 32 4 1\",
-\" c None\",
-\"o c white\",
-\". c black\",
-\"X c green\",
-\" \",
-\" \",
-\" \",
-\" oooooooo \",
-\" o......o \",
-\" o.oooooo.o \",
-\" .o.oooooo.o. \",
-\" o.oooooooo.o \",
-\" o.o..oo..o.o \",
-\" o.oooooooo.o \",
-\" .. oo.o....o.oo .. \",
-\" .X.oo..oo..oo..oo.X. \",
-\" .XXo....o..o....oXX. \",
-\" .XXo.o..o..o..o.oXX. \",
-\" .XXo.o...oo...o.oXX. \",
-\" .Xo.oo........oo.oX. \",
-\" .Xo.oo........oo.oX. \",
-\" .o.ooo........ooo.o. \",
-\" .o.ooo........ooo.o. \",
-\" .o.ooo........ooo.o. \",
-\" .Xo.oo........oo.oX. \",
-\" ..o.oo........oo.o.. \",
-\" o.o..........o.o \",
-\" o............o \",
-\" o..........o \",
-\" .o........o. \",
-\" o.o.oooo.o.o \",
-\" o.....oo.....o \",
-\" o......oo......o \",
-\" o.......oo.......o \",
-\" o..o..o..oo.oo..o..o \",
-\" oooooooooooooooooooo \",
-};
-")
-
-(defconst sokoban-floor ?\&)
-;; note - space character in level file is also allowed to indicate floor
-(defconst sokoban-target ?\.)
-(defconst sokoban-wall ?\#)
-(defconst sokoban-block ?\$)
-(defconst sokoban-player ?\@)
-(defconst sokoban-block-on-target ?\*)
-(defconst sokoban-player-on-target ?\+)
-
-;; ;;;;;;;;;;;;; display options ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
-
-(defvar sokoban-floor-options
- `(((glyph
- [xpm :data ,sokoban-floor-xpm])
- (t ?\040))
- ((color-x color-x)
- (mono-x grid-x)
- (color-tty color-tty))
- (((glyph color-x) [0 0 0])
- (color-tty "black"))))
-
-(defvar sokoban-target-options
- `(((glyph
- [xpm :data ,sokoban-target-xpm])
- ((mono-x mono-tty emacs-tty) ?\.)
- (t ?\040))
- ((color-x color-x)
- (mono-x grid-x)
- (color-tty color-tty))
- (((glyph color-x) [1 1 0.5])
- (color-tty "yellow"))))
-
-(defvar sokoban-wall-options
- `(((glyph
- [xpm :data ,sokoban-wall-xpm])
- (emacs-tty ?\X)
- (t ?\040))
- ((color-x color-x)
- (mono-x mono-x)
- (color-tty color-tty)
- (mono-tty mono-tty))
- (((glyph color-x) [0 0 1])
- (color-tty "blue"))))
-
-(defvar sokoban-block-options
- `(((glyph
- [xpm :data ,sokoban-block-xpm])
- ((mono-x mono-tty emacs-tty) ?\O)
- (t ?\040))
- ((color-x color-x)
- (mono-x grid-x)
- (color-tty color-tty))
- (((glyph color-x) [1 0 0])
- (color-tty "red"))))
-
-(defvar sokoban-block-on-target-options
- `(((glyph
- [xpm :data ,sokoban-block-on-target-xpm])
- ((mono-x mono-tty emacs-tty) ?\O)
- (t ?\040))
- ((color-x color-x)
- (mono-x grid-x)
- (color-tty color-tty))
- (((glyph color-x) [1 0 0])
- (color-tty "red"))))
-
-(defvar sokoban-player-options
- `(((glyph
- [xpm :data ,sokoban-player-xpm])
- (t ?\*))
- ((color-x color-x)
- (mono-x grid-x)
- (color-tty color-tty))
- (((glyph color-x) [0 1 0])
- (color-tty "green"))))
-
-(defvar sokoban-player-on-target-options
- `(((glyph
- [xpm :data ,sokoban-player-on-target-xpm])
- (t ?\*))
- ((color-x color-x)
- (mono-x grid-x)
- (color-tty color-tty))
- (((glyph color-x) [0 1 0])
- (color-tty "green"))))
-
-;; ;;;;;;;;;;;;; variables ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
-
-(defvar sokoban-level 0)
-(make-variable-buffer-local 'sokoban-level)
-(defvar sokoban-level-map nil)
-(make-variable-buffer-local 'sokoban-level-map)
-(defvar sokoban-targets 0)
-(make-variable-buffer-local 'sokoban-targets)
-(defvar sokoban-x 0)
-(make-variable-buffer-local 'sokoban-x)
-(defvar sokoban-y 0)
-(make-variable-buffer-local 'sokoban-y)
-(defvar sokoban-moves 0)
-(make-variable-buffer-local 'sokoban-moves)
-(defvar sokoban-pushes 0)
-(make-variable-buffer-local 'sokoban-pushes)
-(defvar sokoban-done 0)
-(make-variable-buffer-local 'sokoban-done)
-(defvar sokoban-mouse-x 0)
-(make-variable-buffer-local 'sokoban-mouse-x)
-(defvar sokoban-mouse-y 0)
-(make-variable-buffer-local 'sokoban-mouse-y)
-(defvar sokoban-undo-list nil)
-(make-variable-buffer-local 'sokoban-undo-list)
-
-;; ;;;;;;;;;;;;; keymaps ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
-
-(defvar sokoban-mode-map
- (let ((map (make-sparse-keymap)))
- (define-key map "n" 'sokoban-start-game)
- (define-key map "r" 'sokoban-restart-level)
- (define-key map "g" 'sokoban-goto-level)
- (define-key map "F" 'fit-frame-to-buffer)
-
- (define-key map [left] 'sokoban-move-left)
- (define-key map [right] 'sokoban-move-right)
- (define-key map [up] 'sokoban-move-up)
- (define-key map [down] 'sokoban-move-down)
-
- (define-key map [down-mouse-2] 'sokoban-mouse-event-start)
- (define-key map [mouse-2] 'sokoban-mouse-event-end)
- ;; On some systems (OS X) middle mouse is difficult.
- ;; FIXME: Use follow-link?
- (define-key map [down-mouse-1] 'sokoban-mouse-event-start)
- (define-key map [mouse-1] 'sokoban-mouse-event-end)
-
- (define-key map [(control ?/)] 'sokoban-undo)
- map))
-
-;; ;;;;;;;;;;;;;;;; level file parsing functions ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
-
-(defconst sokoban-level-regexp "^;LEVEL [0-9]+$")
-
-(defconst sokoban-comment-regexp "^;")
-
-(defun sokoban-convert-xml-to-plain-text ()
- (let ((n 0) (tree (xml-parse-region)))
- (erase-buffer)
- (dolist (SokobanLevels tree)
- (dolist (LevelCollection (xml-get-children SokobanLevels 'LevelCollection))
- (dolist (Level (xml-get-children LevelCollection 'Level))
- (incf n)
- (insert (format ";LEVEL %d\n" n))
- (dolist (L (xml-get-children Level 'L))
- (insert (car (xml-node-children L)))
- (insert "\n"))))))
- (goto-char (point-min)))
-
-(defun sokoban-init-level-data ()
- (setq sokoban-level-data nil
- sokoban-width 15 ; need at least 15 for score display
- sokoban-height 1)
- (with-temp-buffer
- (insert-file-contents sokoban-level-file)
- (goto-char (point-min))
- (if (looking-at "<\\?xml version=")
- (sokoban-convert-xml-to-plain-text))
- (re-search-forward sokoban-level-regexp nil t)
- (forward-char)
- (let (r)
- (while (not (eobp))
- (while (looking-at sokoban-comment-regexp)
- (forward-line))
- (setq r 0)
- (while (not (or (eobp)
- (looking-at sokoban-comment-regexp)))
- (incf r)
- (setq sokoban-height (max sokoban-height r)
- sokoban-width (max sokoban-width (- (line-end-position) (line-beginning-position))))
- (forward-line))))
- (setq sokoban-buffer-width sokoban-width
- sokoban-buffer-height (+ 4 sokoban-height)
- sokoban-score-x 0
- sokoban-score-y (1+ sokoban-height))
-
- (goto-char (point-min))
- (re-search-forward sokoban-level-regexp nil t)
- (forward-char)
- (while (not (eobp))
- (while (looking-at sokoban-comment-regexp)
- (forward-line))
- (let ((data (make-vector sokoban-height nil))
- (fmt (format "%%-%ds" sokoban-width)))
- (dotimes (y sokoban-height)
- (cond ((or (eobp)
- (looking-at sokoban-comment-regexp))
- (aset data y (format fmt "")))
- (t
- (let ((start (point))
- (end (line-end-position)))
- (aset data
- y
- (format fmt (buffer-substring start end)))
- (goto-char (1+ end))))))
- (push data sokoban-level-data)))
- (kill-buffer (current-buffer))
- (setq sokoban-level-data (nreverse sokoban-level-data))))
-
-;; ;;;;;;;;;;;;;;;; game functions ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
-
-(defun sokoban-display-options ()
- (let ((options (make-vector 256 nil)))
- (dotimes (c 256)
- (aset options c
- (cond ((= c sokoban-floor)
- sokoban-floor-options)
- ((= c sokoban-target)
- sokoban-target-options)
- ((= c sokoban-wall)
- sokoban-wall-options)
- ((= c sokoban-block)
- sokoban-block-options)
- ((= c sokoban-block-on-target)
- sokoban-block-on-target-options)
- ((= c sokoban-player)
- sokoban-player-options)
- ((= c sokoban-player-on-target)
- sokoban-player-on-target-options)
- (t
- '(nil nil nil)))))
- options))
-
-(defun sokoban-get-level-data ()
- (setq sokoban-level-map (nth (1- sokoban-level) sokoban-level-data)
- sokoban-targets 0)
- (dotimes (y sokoban-height)
- (dotimes (x sokoban-width)
- (let ((c (aref (aref sokoban-level-map y) x)))
- (cond
- ((or (eq c sokoban-target)
- (eq c sokoban-player-on-target))
- (incf sokoban-targets))
- ((eq c sokoban-block-on-target)
- (incf sokoban-targets)
- (incf sokoban-done))
- ((= c ?\040) ;; treat space characters in level file as floor
- (aset (aref sokoban-level-map y) x sokoban-floor)))))))
-
-(defun sokoban-init-buffer ()
- (gamegrid-init-buffer sokoban-buffer-width
- sokoban-buffer-height
- ?\040)
- (dotimes (y sokoban-height)
- (dotimes (x sokoban-width)
- (let ((c (aref (aref sokoban-level-map y) x)))
- (if (or (eq c sokoban-player)
- (eq c sokoban-player-on-target))
- (setq sokoban-x x
- sokoban-y y))
- (gamegrid-set-cell x y c)))))
-
-(defun sokoban-draw-score ()
- (let ((y sokoban-score-y))
- (dolist (string (list (format "Moves: %05d" sokoban-moves)
- (format "Pushes: %05d" sokoban-pushes)
- (format "Done: %d/%d"
- sokoban-done
- sokoban-targets)))
- (let* ((len (length string)))
- (dotimes (x len)
- (gamegrid-set-cell (+ sokoban-score-x x)
- y (aref string x))))
- (incf y)))
- (setq mode-line-format
- (format "Sokoban: Level: %d/%d Moves: %05d Pushes: %05d Done: %d/%d"
- sokoban-level (length sokoban-level-data) sokoban-moves sokoban-pushes
- sokoban-done sokoban-targets))
- (force-mode-line-update))
-
-(defun sokoban-add-move (dx dy)
- (push (list 'move dx dy) sokoban-undo-list)
- (incf sokoban-moves)
- (sokoban-draw-score))
-
-(defun sokoban-add-push (dx dy)
- (push (list 'push dx dy) sokoban-undo-list)
- (incf sokoban-moves)
- (incf sokoban-pushes)
- (sokoban-draw-score))
-
-(defun sokoban-targetp (x y)
- (let ((c (aref (aref sokoban-level-map y) x)))
- (or (eq c sokoban-target)
- (eq c sokoban-block-on-target)
- (eq c sokoban-player-on-target))))
-
-(defun sokoban-set-floor (x y)
- (gamegrid-set-cell x y
- (if (sokoban-targetp x y)
- sokoban-target
- sokoban-floor)))
-
-(defun sokoban-set-player (x y)
- (gamegrid-set-cell x y
- (if (sokoban-targetp x y)
- sokoban-player-on-target
- sokoban-player)))
-
-(defun sokoban-set-block (x y)
- (gamegrid-set-cell x y
- (if (sokoban-targetp x y)
- sokoban-block-on-target
- sokoban-block)))
-
-(defun sokoban-undo ()
- "Undo previous Sokoban change."
- (interactive)
- ;; FIXME: Use the normal undo (via `apply' undo entries).
- (if (null sokoban-undo-list)
- (message "Nothing to undo")
- (let* ((entry (pop sokoban-undo-list))
- (type (car entry))
- (dx (nth 1 entry))
- (dy (nth 2 entry)))
- (cond ((eq type 'push)
- (let* ((x (+ sokoban-x dx))
- (y (+ sokoban-y dy)))
- (sokoban-set-floor x y)
- (if (sokoban-targetp x y)
- (decf sokoban-done))
- (sokoban-set-block sokoban-x sokoban-y)
- (if (sokoban-targetp sokoban-x sokoban-y)
- (incf sokoban-done)))
- (setq sokoban-x (- sokoban-x dx))
- (setq sokoban-y (- sokoban-y dy))
- (sokoban-set-player sokoban-x sokoban-y)
- (decf sokoban-pushes)
- (decf sokoban-moves))
- ((eq type 'move)
- (sokoban-set-floor sokoban-x sokoban-y)
- (setq sokoban-x (- sokoban-x dx))
- (setq sokoban-y (- sokoban-y dy))
- (sokoban-set-player sokoban-x sokoban-y)
- (decf sokoban-moves))
- (t
- (message "Invalid entry in sokoban-undo-list")))
- (sokoban-draw-score))))
-
-(defun sokoban-move (dx dy)
- (let* ((x (+ sokoban-x dx))
- (y (+ sokoban-y dy))
- (c (gamegrid-get-cell x y)))
- (cond ((or (eq c sokoban-floor)
- (eq c sokoban-target))
- (sokoban-set-floor sokoban-x sokoban-y)
- (setq sokoban-x x
- sokoban-y y)
- (sokoban-set-player sokoban-x sokoban-y)
- (sokoban-add-move dx dy))
- ((or (eq c sokoban-block)
- (eq c sokoban-block-on-target))
- (let* ((xx (+ x dx))
- (yy (+ y dy))
- (cc (gamegrid-get-cell xx yy)))
- (cond ((or (eq cc sokoban-floor)
- (eq cc sokoban-target))
- (if (sokoban-targetp x y)
- (decf sokoban-done))
- (sokoban-set-block xx yy)
- (sokoban-set-player x y)
- (sokoban-set-floor sokoban-x sokoban-y)
- (setq sokoban-x x
- sokoban-y y)
- (if (sokoban-targetp xx yy)
- (incf sokoban-done))
- (sokoban-add-push dx dy)
- (cond ((= sokoban-done sokoban-targets)
- (let ((level sokoban-level))
- (with-temp-file sokoban-state-filename
- (print level (current-buffer))))
- (sit-for 3)
- (sokoban-next-level))))))))))
-
-(defun sokoban-event-x (event)
- (let ((x (gamegrid-event-x event)))
- ;; 32.0 is the pixel width of the xpm image
- (floor x (/ 32.0 (frame-char-width)))))
-
-(defun sokoban-event-y (event)
- (let ((y (gamegrid-event-y event)))
- (floor y (/ 32.0 (frame-char-height)))))
-
-(defun sokoban-mouse-event-start (event)
- "Record the beginning of a mouse click."
- (interactive "e")
- (setq sokoban-mouse-x (sokoban-event-x event))
- (setq sokoban-mouse-y (sokoban-event-y event)))
-
-(defun sokoban-mouse-event-end (event)
- "Move according to the clicked position."
- (interactive "e")
- (let* ((x (sokoban-event-x event))
- (y (sokoban-event-y event))
- (dx (- x sokoban-x))
- (dy (- y sokoban-y)))
- (cond
- ;; Ensure that press and release are in the same square
- ;; (which allows you to abort a move)
- ((not (and (eq sokoban-mouse-x x) (eq sokoban-mouse-y y)))
- nil)
- ;; Check that the move isn't diagonal
- ((not (or (eq dx 0) (eq dy 0)))
- nil)
- ((< dx 0) ;; Left
- (while (< dx 0)
- (sokoban-move -1 0)
- (setq dx (1+ dx))))
- ((> dx 0) ;; Right
- (while (> dx 0)
- (sokoban-move 1 0)
- (setq dx (1- dx))))
- ((> dy 0) ;; Up
- (while (> dy 0)
- (sokoban-move 0 1)
- (setq dy (1- dy))))
- ((< dy 0) ;; Down
- (while (< dy 0)
- (sokoban-move 0 -1)
- (setq dy (1+ dy)))))))
-
-(defun sokoban-move-left ()
- "Move one square left."
- (interactive)
- (sokoban-move -1 0))
-
-(defun sokoban-move-right ()
- "Move one square right."
- (interactive)
- (sokoban-move 1 0))
-
-(defun sokoban-move-up ()
- "Move one square up."
- (interactive)
- (sokoban-move 0 -1))
-
-(defun sokoban-move-down ()
- "Move one square down."
- (interactive)
- (sokoban-move 0 1))
-
-(defun sokoban-restart-level ()
- "Restart the current level."
- (interactive)
- (setq sokoban-moves 0
- sokoban-pushes 0
- sokoban-done 0
- sokoban-undo-list nil)
- (sokoban-get-level-data)
- (sokoban-init-buffer)
- (sokoban-draw-score))
-
-(defun sokoban-next-level ()
- (sokoban-goto-level (1+ sokoban-level)))
-
-(defun sokoban-goto-level (level)
- "Jump to a specified LEVEL."
- (interactive "nLevel: ")
- (when (or (< level 1)
- (> level (length sokoban-level-data)))
- (signal 'args-out-of-range
- (list
- (format "No such level number %d, should be 1..%d"
- level (length sokoban-level-data)))))
- (setq sokoban-level level)
- (sokoban-restart-level))
-
-(defun sokoban-start-game ()
- "Start a new game of Sokoban."
- (interactive)
- (setq sokoban-level 0)
- (sokoban-next-level))
-
-(put 'sokoban-mode 'mode-class 'special)
-
-(easy-menu-define sokoban-popup-menu nil "Popup menu for Sokoban mode."
- '("Sokoban Commands"
- ["Restart this level" sokoban-restart-level]
- ["Start new game" sokoban-start-game]
- ["Go to specific level" sokoban-goto-level]
- ["Fit frame to buffer" fit-frame-to-buffer]))
-(define-key sokoban-mode-map [down-mouse-3] sokoban-popup-menu)
-
-(define-derived-mode sokoban-mode special-mode "Sokoban"
- "A mode for playing Sokoban.
-
-sokoban-mode keybindings:
- \\{sokoban-mode-map}"
-
- (set (make-local-variable 'gamegrid-use-glyphs) sokoban-use-glyphs)
- (set (make-local-variable 'gamegrid-use-color) sokoban-use-color)
- (set (make-local-variable 'gamegrid-font) sokoban-font)
-
- (gamegrid-init (sokoban-display-options))
-
- (if (null sokoban-level-data)
- (sokoban-init-level-data)))
-
-;;;###autoload
-(defun sokoban ()
- "Sokoban.
-
-Push the blocks onto the target squares.
-
-sokoban-mode keybindings:
- \\<sokoban-mode-map>
-\\[sokoban-start-game] Starts a new game of Sokoban
-\\[sokoban-restart-level] Restarts the current level
-\\[sokoban-goto-level] Jumps to a specified level
-\\[fit-frame-to-buffer] Fit frame to buffer
-\\[sokoban-move-left] Move one square to the left
-\\[sokoban-move-right] Move one square to the right
-\\[sokoban-move-up] Move one square up
-\\[sokoban-move-down] Move one square down"
- (interactive)
-
- (switch-to-buffer sokoban-buffer-name)
- (gamegrid-kill-timer)
- (sokoban-mode)
- (setq sokoban-level 0)
- (if (file-exists-p sokoban-state-filename)
- (setq sokoban-level
- (with-temp-buffer
- (insert-file-contents sokoban-state-filename)
- (goto-char (point-min))
- (read (current-buffer)))))
- (sokoban-next-level))
-
-;;;###autoload
-(define-key-after ; install a menu entry
- (lookup-key global-map [menu-bar tools games])
- [sokoban]
- '(menu-item "Sokoban" sokoban)
- 'snake)
-
-(provide 'sokoban)
-
-;;; sokoban.el ends here
projects / emacsconfig.git / commitdiff