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- ;;; xmine.el --- Mine game for XEmacs
-
- ;; Author: Jens Lautenbacher <jens@lemming0.lem.uni-karlsruhe.de>
- ;; Keywords: games
- ;; Version: 1.8
-
- ;; 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 2, 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.
-
- ;; Commentary: This is a complete reimplementation of the classical
- ;; mine searching game known from various OS/GUIs under names like
- ;; xmine, minesweeper etc.
-
- ;; The idea to implement this in elisp is from
- ;; Jacques Duthen <duthen@cegelec-red.fr>,
- ;; the author of the original mine game for GNU Emacs. This version
- ;; has to the best of my knowledge no code in common with his version,
- ;; but cudos go to him for first starting this...
- ;;
- ;; I mainly wrote this as an example how graphics handling in XEmacs
- ;; is possible. I think I did it the right way, using an extension to
- ;; the annotation mechanism and via extensive use of `slots' (realized
- ;; as properties of extents) to hold the data in the object itself.
- ;; (Of course this is not true. The keyboard handling is controlled from
- ;; the "outside" of the objects. But at one time during development
- ;; before hacking the keyboard controls the code really _was_ nice...
- ;; now it's a bad messing with slots and controls from the outside)
- ;;
- ;; Code:
- ;;
- ;;; First of all we'll define the needed varibles.
-
- (defconst xmine-version-number "1.8" "XEmacs Mine version number.")
- (defconst xmine-version (format "XEmacs Mine v%s by Jens Lautenbacher ⌐ 1997"
- xmine-version-number)
- "Full XEmacs Mine version number.")
-
- (defgroup xmine nil
- "The well known mine searching game."
- :group 'games)
-
- (defcustom xmine-width 25
- "The width of the mine field"
- :group 'xmine
- :type 'integer)
-
- (defcustom xmine-height 20
- "The height of the mine field"
- :group 'xmine
- :type 'integer)
-
- (defcustom xmine-glyph-dir (locate-data-directory "mine")
- "The directory where the mine glyphs reside"
- :group 'xmine
- :type 'directory)
-
- (defface xmine-hidden-face
- '((t
- (:background "blue")))
- "The face used for hidden tiles on ttys"
- :group 'xmine)
-
- (defface xmine-flagged-face
- '((t
- (:background "red")))
- "The face used for flagged tiles on ttys"
- :group 'xmine)
-
- (defface xmine-number-face
- '((t
- (:background "green")))
- "The face used for unhidden, numbered tiles on ttys"
- :group 'xmine)
-
-
- (defvar xmine-pad-glyph
- (make-glyph
- (if (and (eq window-system 'x) (featurep 'xpm))
- (concat xmine-glyph-dir "pad.xpm")
- " ")))
-
- (defvar xmine-title-glyph
- (make-glyph
- (if (and (eq window-system 'x) (featurep 'xpm))
- (concat xmine-glyph-dir "splash.xpm")
- "------------------ XEmacs XMine ------------------")))
-
- (defvar xmine-glyph-production-list
- '(("xmine-new-up" "new_up.gif" "new" nil)
- ("xmine-new-down" "new_down.gif" "NEW" nil)
- ("xmine-quit-up" "quit_up.gif" "quit" nil)
- ("xmine-quit-down" "quit_down.gif" "QUIT" nil)
- ("xmine-up-glyph" "empty_16_up.gif" "@ " xmine-hidden-face)
- ("xmine-up-sel-glyph" "empty_16_up_sel.gif" "@<" xmine-hidden-face)
- ("xmine-down-glyph" "empty_16_down.gif" "? " nil)
- ("xmine-flagged-glyph" "flagged_16_up.gif" "! " xmine-flagged-face)
- ("xmine-flagged-sel-glyph" "flagged_16_up_sel.gif" "!<" xmine-flagged-face)
- ("xmine-mine-glyph" "bomb_16_flat.gif" "* " nil)
- ("xmine-mine-sel-glyph" "bomb_16_flat.gif" "*<" nil)
- ("xmine-trapped-glyph" "bomb_trapped_16_flat.gif" "X " nil)
- ("xmine-0-glyph" "empty_16_flat.gif" ". " nil)
- ("xmine-0-sel-glyph" "empty_16_flat_sel.gif" ".<" nil)
- ("xmine-1-glyph" "1_16_flat.gif" "1 " xmine-number-face)
- ("xmine-1-sel-glyph" "1_16_flat_sel.gif" "1<" xmine-number-face)
- ("xmine-2-glyph" "2_16_flat.gif" "2 " xmine-number-face)
- ("xmine-2-sel-glyph" "2_16_flat_sel.gif" "2<" xmine-number-face)
- ("xmine-3-glyph" "3_16_flat.gif" "3 " xmine-number-face)
- ("xmine-3-sel-glyph" "3_16_flat_sel.gif" "3<" xmine-number-face)
- ("xmine-4-glyph" "4_16_flat.gif" "4 " xmine-number-face)
- ("xmine-4-sel-glyph" "4_16_flat_sel.gif" "4<" xmine-number-face)
- ("xmine-5-glyph" "5_16_flat.gif" "5 " xmine-number-face)
- ("xmine-5-sel-glyph" "5_16_flat_sel.gif" "5<" xmine-number-face)
- ("xmine-6-glyph" "6_16_flat.gif" "6 " xmine-number-face)
- ("xmine-6-sel-glyph" "6_16_flat_sel.gif" "6<" xmine-number-face)
- ("xmine-7-glyph" "7_16_flat.gif" "7 " xmine-number-face)
- ("xmine-7-sel-glyph" "7_16_flat_sel.gif" "7<" xmine-number-face)
- ("xmine-8-glyph" "8_16_flat.gif" "8 " xmine-number-face)
- ("xmine-8-sel-glyph" "8_16_flat_sel.gif" "8<" xmine-number-face)))
-
- (defvar xmine-force-textual nil
- "This is for debugging purposes only. No need to set it. Really.")
-
- (defun xmine-generate-glyphs ()
- (let ((list xmine-glyph-production-list)
- elem var gif text face)
- (while (setq elem (pop list))
- (setq var (car elem)
- gif (cadr elem)
- text (caddr elem)
- face (cadddr elem))
- (set (intern var)
- (make-glyph (if (and (not xmine-force-textual)
- (eq window-system 'x))
- (concat xmine-glyph-dir gif)
- text)))
- (if face
- (set-glyph-face (eval (intern-soft var)) face)))))
-
- (xmine-generate-glyphs)
-
- (defvar xmine-key-sel-button nil)
-
- (defun xmine-up-glyph (ext)
- (if (equal ext xmine-key-sel-button)
- (progn
- (set-extent-property ext 'xmine-non-selected-glyph xmine-up-glyph)
- xmine-up-sel-glyph)
- xmine-up-glyph))
-
- (defun xmine-flagged-glyph (ext)
- (if (equal ext xmine-key-sel-button)
- (progn
- (set-extent-property ext 'xmine-non-selected-glyph xmine-flagged-glyph)
- xmine-flagged-sel-glyph)
- xmine-flagged-glyph))
-
- (defcustom xmine-%-of-mines 12
- "The percentage of tiles that should be mines."
- :group 'xmine
- :type 'integer)
-
- (defcustom xmine-balloon-list (list "What are you waiting for?"
- "Push me!"
- "Come on. Don't sleep."
- "Are you sure?"
- "Are you sleeping?"
- "Yes! Do it!"
- "I'm getting bored."
- "You will NEVER beat me.")
- "(Random) texts for the balloon-help property of the tiles"
- :group 'xmine
- :type '(repeat (string)))
-
- (defcustom xmine-background "white"
- "The background color of XMine's buffer.
- Many colors will not blend nicely with the logo. Shades of light grey are
- preferred if you don't want to use white."
- :group 'xmine
- :type 'color)
-
- (defvar xmine-keymap nil)
-
- (if xmine-keymap ()
- (setq xmine-keymap (make-sparse-keymap))
- (suppress-keymap xmine-keymap)
- (define-key xmine-keymap [up] 'xmine-key-up)
- (define-key xmine-keymap [down] 'xmine-key-down)
- (define-key xmine-keymap [right] 'xmine-key-right)
- (define-key xmine-keymap [left] 'xmine-key-left)
- (define-key xmine-keymap "e" 'xmine-key-up)
- (define-key xmine-keymap "c" 'xmine-key-down)
- (define-key xmine-keymap "f" 'xmine-key-right)
- (define-key xmine-keymap "s" 'xmine-key-left)
- (define-key xmine-keymap "w" 'xmine-key-up-left)
- (define-key xmine-keymap "x" 'xmine-key-down-left)
- (define-key xmine-keymap "r" 'xmine-key-up-right)
- (define-key xmine-keymap "v" 'xmine-key-down-right)
- (define-key xmine-keymap [return] 'xmine-key-action3)
- (define-key xmine-keymap "d" 'xmine-key-action3)
- (define-key xmine-keymap [(shift space)] 'xmine-key-action2)
- (define-key xmine-keymap "a" 'xmine-key-action2)
- (define-key xmine-keymap [space] 'xmine-key-action1)
- (define-key xmine-keymap [Q] 'xmine-key-quit)
- (define-key xmine-keymap [N] 'xmine-key-new))
-
- (defvar xmine-number-of-flagged 0)
-
- (defvar xmine-number-of-opened 0)
-
- (defvar xmine-number-of-mines 0)
-
- (defvar xmine-field nil)
-
- (defvar xmine-buffer nil)
-
- (defvar xmine-quit-ann nil)
-
- (defvar xmine-new-ann nil)
-
- (defvar xmine-count-ann nil)
-
- (defvar xmine-count-glyph (make-glyph "Mines: 00"))
-
- (defvar xmine-mode-hook nil
- "*Hook called by `xmine-mode-hook'.")
-
- ;; the next function is more or less stolen from annotation.el and
- ;; modified to fit in our scheme were all three buttons should trigger
- ;; actions
-
- (defun xmine-activate-function-button (event)
- (interactive "e")
- (let* ((extent (event-glyph-extent event))
- (button (number-to-string (event-button event)))
- (action (intern (concat "action" button)))
- (down-action (intern (concat "down-action" button)))
- (restore-down-action (intern (concat "restore-down-action" button)))
- (mouse-down t)
- (action-do-it t)
- up-glyph)
- ;; make the glyph look pressed
- (cond ((annotation-down-glyph extent)
- (setq up-glyph (annotation-glyph extent))
- (set-annotation-glyph extent (annotation-down-glyph extent))))
- (if (extent-property extent down-action)
- (setq action-do-it
- (funcall (extent-property extent down-action) extent)))
- (while mouse-down
- (setq event (next-event event))
- (if (button-release-event-p event)
- (setq mouse-down nil)))
- ;; make the glyph look released
- (cond ((annotation-down-glyph extent)
- (set-annotation-glyph extent up-glyph)))
- (if (eq extent (event-glyph-extent event))
- (if (and (extent-property extent action) action-do-it)
- (funcall (extent-property extent action) extent)
- (if (extent-property extent restore-down-action)
- (funcall (extent-property extent restore-down-action) extent)))
- (if (extent-property extent restore-down-action)
- (funcall (extent-property extent restore-down-action) extent)))))
-
- ;;; Here we define the button object's constructor function
-
- (defun xmine-button-create (x y type)
- (let ((ext (make-annotation
- xmine-up-glyph nil 'text nil nil xmine-down-glyph nil)))
- (set-extent-property ext 'action1 'xmine-action1)
- (set-extent-property ext 'action2 'xmine-beep)
- (set-extent-property ext 'action3 'xmine-action3)
- (set-extent-property ext 'down-action2 'xmine-down-action2)
- (set-extent-property ext 'restore-down-action2 'xmine-restore-down-action2)
- (set-extent-property ext 'xmine-glyph (xmine-type-to-glyph type))
- (set-extent-property ext 'xmine-sel-glyph (xmine-type-to-sel-glyph type))
- (set-extent-property ext 'xmine-type type)
- (set-extent-property ext 'xmine-x x)
- (set-extent-property ext 'xmine-y y)
- (set-extent-property ext 'xmine-flagged nil)
- (set-extent-property ext 'xmine-hidden t)
- (set-extent-property ext 'end-open t)
- (set-extent-property ext 'balloon-help (xmine-balloon-text))
- (aset xmine-field (+ (* (1- y) xmine-width) (1- x)) ext)))
-
- ;;; ...and this is the second global function to change a
- ;;; button object. It is only needed during creation of the board.
-
- (defun xmine-button-change-type (ext type)
- (set-extent-property ext 'xmine-glyph (xmine-type-to-glyph type))
- (set-extent-property ext 'xmine-sel-glyph (xmine-type-to-sel-glyph type))
- (set-extent-property ext 'xmine-type type))
-
- ;;; some needed predicates.
-
- (defun xmine-flat-button-p (ext)
- (and ext
- (not (extent-property ext 'xmine-hidden))
- (equal "0" (extent-property ext 'xmine-type))))
-
- (defun xmine-enough-flagged-p (ext)
- (let ((list (xmine-get-neighbours ext))
- (number (extent-property ext 'xmine-type))
- (flagged 0) elem res)
- (if (not (or (equal number "mine")
- (equal number "0")))
- (progn
- (setq number (string-to-number number))
- (while (setq elem (pop list))
- (if (extent-property elem 'xmine-flagged)
- (setq flagged (1+ flagged))))
- (setq res (>= flagged number))
- ))
- res))
-
-
- (defun xmine-mine-button-p (ext)
- (and ext
- (equal "mine" (extent-property ext 'xmine-type))))
-
- ;;; the next three functions are helper functions used inside a button
- ;;; object.
-
- (defun xmine-balloon-text ()
- (nth (random (length xmine-balloon-list)) xmine-balloon-list))
-
- (defun xmine-beep (&rest forget)
- (beep))
-
- (defun xmine-type-to-glyph (type)
- (eval (intern-soft (concat "xmine-" type "-glyph"))))
-
- (defun xmine-type-to-sel-glyph (type)
- (eval (intern-soft (concat "xmine-" type "-sel-glyph"))))
-
- ;;; the next 3 functions are the main functions that are used
- ;;; inside the button objects and which are bound to the 'action1,
- ;;; 'action2 and 'action3 slots respectively
-
- (defun xmine-action1 (ext &optional no-repaint force)
- "This unhides a hidden button"
- (if (or force
- (not (extent-property ext 'xmine-flagged)))
- (progn
- (if (and (not force)
- (extent-property ext 'xmine-hidden))
- (setq xmine-number-of-opened (1+ xmine-number-of-opened)))
- (set-extent-property ext 'xmine-hidden nil)
- (set-annotation-glyph ext (if (equal ext xmine-key-sel-button)
- (progn
- (set-extent-property
- ext 'xmine-non-selected-glyph
- (extent-property ext 'xmine-glyph))
- (extent-property ext 'xmine-sel-glyph))
- (extent-property ext 'xmine-glyph)))
- (set-extent-property ext 'action3 nil)
- (set-extent-property ext 'action1 nil)
- (set-extent-property ext 'balloon-help nil)
- (set-extent-property ext 'action2 'xmine-action2)
- (if (not no-repaint)
- (progn
- (xmine-unhide-sound)
- (xmine-field-repaint ext)
- (if (and (xmine-game-solved-p)
- (not (xmine-mine-button-p ext)))
- (xmine-end-game)))))))
-
- (defun xmine-action2 (ext)
- "This unhides all hidden neighbours of a button.
- It is meant as convenience function you can use if you're sure that
- you've marked all mines around the button correctly (or you're sure
- there isn't one)"
- (let ((list (xmine-get-neighbours ext))
- (xmine-no-unhide-sound t)
- next)
- ;; (xmine-restore-down-action2 ext)
- (if list (xmine-unhide-many-sound))
- (while (setq next (pop list))
- (if (not (xmine-flat-button-p next)) (xmine-action1 next)))))
-
- (defun xmine-action3 (ext)
- "This toggles the flagged status of a button.
- You flag a button if you know - or think - that there's a mine under it"
- (if (extent-property ext 'xmine-flagged)
- (progn
- (set-annotation-glyph ext (xmine-up-glyph ext))
- (set-extent-property ext 'action1 'xmine-action1)
- (set-extent-property ext 'xmine-flagged nil)
- (setq xmine-number-of-flagged (1- xmine-number-of-flagged))
- (xmine-flag-sound)
- (set-annotation-glyph xmine-count-ann
- (make-glyph
- (format "Mines: %2d"
- (- xmine-number-of-mines
- xmine-number-of-flagged)))))
- (if (= xmine-number-of-flagged xmine-number-of-mines)
- (progn
- (beep)
- (message
- "Impossible. You seem to have marked too many tiles as mines?"))
- (set-annotation-glyph ext (xmine-flagged-glyph ext))
- (set-extent-property ext 'action1 nil)
- (set-extent-property ext 'xmine-flagged t)
- (setq xmine-number-of-flagged (1+ xmine-number-of-flagged))
- (xmine-flag-sound)
- (if (xmine-game-solved-p) (xmine-end-game)
- (set-annotation-glyph xmine-count-ann
- (make-glyph
- (format "Mines: %2d"
- (- xmine-number-of-mines
- xmine-number-of-flagged))))))))
-
-
- (defun xmine-down-action2 (ext)
- (let ((list (xmine-get-neighbours ext))
- (do-it (xmine-enough-flagged-p ext))
- elem)
- (if (not do-it)
- (while (setq elem (pop list))
- (set-extent-property elem 'xmine-temp-glyph (annotation-glyph elem))
- (set-annotation-glyph elem (annotation-down-glyph elem))))
- do-it))
-
- (defun xmine-restore-down-action2 (ext)
- (let ((list (xmine-get-neighbours ext))
- elem)
- (while (setq elem (pop list))
- (set-annotation-glyph elem (extent-property elem 'xmine-temp-glyph)))))
-
- ;;; the sounds...
- (defcustom xmine-play-sounds nil
- "If XMine should play some sounds for various events to happen."
- :group 'xmine
- :type 'boolean)
-
- (defun xmine-play-sounds-p ()
- (and xmine-play-sounds
- (or (featurep 'native-sound)
- (featurep 'nas-sound))
- (or (device-sound-enabled-p)
- (and (featurep 'native-sound)
- (not native-sound-only-on-console)
- (eq (device-type) 'x)))))
-
-
- (defcustom xmine-flag-sound (concat (locate-data-directory "sounds")
- "click.au")
- "The sound played when flagging/un-flagging a tile"
- :group 'xmine
- :type 'file)
-
- (defcustom xmine-unhide-sound (concat (locate-data-directory "sounds")
- "drip.au")
- "The sound played when unhiding a tile"
- :group 'xmine
- :type 'file)
-
- (defcustom xmine-unhide-many-sound (concat (locate-data-directory "sounds")
- "boing.au")
- "The sound played when unhiding all neighbours of a tile"
- :group 'xmine
- :type 'file)
-
- (defcustom xmine-explode-sound (concat xmine-glyph-dir "explosion3.au")
- "The sound played when you unhide a mine"
- :group 'xmine
- :type 'file)
-
- (defcustom xmine-solved-sound (concat (locate-data-directory "sounds")
- "im_so_happy.au")
- "The sound played if you managed to win the game."
- :group 'xmine
- :type 'file)
-
- (defun xmine-flag-sound ()
- (if (xmine-play-sounds-p)
- (play-sound-file xmine-flag-sound)))
-
- (defvar xmine-no-unhide-sound nil)
-
- (defun xmine-unhide-sound ()
- (if (and (xmine-play-sounds-p)
- (not xmine-no-unhide-sound))
- (play-sound-file xmine-unhide-sound)))
-
- (defun xmine-unhide-many-sound ()
- (if (xmine-play-sounds-p)
- (play-sound-file xmine-unhide-many-sound)))
-
- (defun xmine-explode-sound ()
- (if (xmine-play-sounds-p)
- (play-sound-file xmine-explode-sound)
- (beep)))
-
- (defun xmine-solved-sound ()
- (if (xmine-play-sounds-p)
- (play-sound-file xmine-solved-sound)
- (beep)))
-
-
- ;;; what to do after a button is unhidden: We (maybe) have to repaint
- ;;; parts of the board. This is done here recursively.
-
- (defun xmine-field-repaint (ext)
- (let* ((flatp (xmine-flat-button-p ext))
- (minep (xmine-mine-button-p ext))
- (neighbours (xmine-get-neighbours ext))
- (max-lisp-eval-depth (* 8 xmine-width xmine-height))
- next-ext ext-list)
- (cond (flatp
- (while (setq next-ext (pop neighbours))
- (if (extent-property next-ext 'xmine-hidden)
- (progn
- (xmine-action1 next-ext 'no-repaint)
- (and (equal "0" (extent-property next-ext 'xmine-type))
- (push next-ext ext-list)))))
- (while ext-list
- (setq next-ext (pop ext-list))
- (xmine-field-repaint next-ext)))
- (minep
- (set-extent-property ext 'xmine-glyph xmine-trapped-glyph)
- (set-extent-property ext 'xmine-sel-glyph xmine-trapped-glyph)
- (xmine-show-all)
- (xmine-end-game-trapped)))))
-
-
- (defun xmine-get-neighbours (ext)
- "This gives back a list of all neighbours of a button, correctly
- handling buttons at the side or corner of course"
- (let* ((x (extent-property ext 'xmine-x))
- (y (extent-property ext 'xmine-y))
- next-coord next list
- (neighbours (list (list (1- x) (1+ y))
- (list x (1+ y))
- (list (1+ x) (1+ y))
- (list (1- x) (1- y))
- (list x (1- y))
- (list (1+ x) (1- y))
- (list (1+ x) y)
- (list (1- x) y))))
- (while (setq next-coord (pop neighbours))
- (if (setq next (xmine-field-button-at (car next-coord)
- (cadr next-coord)))
- (push next list)))
- list))
-
-
- ;;; the next four functions are used to know if we're at the end of
- ;;; the game (either successfully or exploded) and do the approbate
- ;;; action
-
- (defun xmine-game-solved-p ()
- "You have solved the game successfully if the number of flagged
- mines plus the number of unhidden buttons equals width*height of the field"
- (equal (+ xmine-number-of-flagged xmine-number-of-opened)
- (* xmine-width xmine-height)))
-
- (defun xmine-end-game ()
- (set-annotation-glyph xmine-count-ann
- (make-glyph " Solved. "))
- (sit-for 0)
- (xmine-solved-sound))
-
- (defun xmine-end-game-trapped ()
- (xmine-explode-sound)
- (set-annotation-glyph xmine-count-ann
- (make-glyph "++ RIP ++")))
-
- (defun xmine-show-all ()
- (let ((list (append xmine-field nil))
- next)
- (while (setq next (pop list))
- (xmine-action1 next 'no-repaint 'force))))
-
-
- (defun xmine-field-button-at (x y)
- "This function gives back the button at a given coordinate pair (x y)
- It is only used during creation of the board and when getting the
- neighbours of a button (and for keyboard handling...), as we don't
- want to use coordinates in the main loop, only the button object
- itself should be referenced. Of course the use of this function could
- be avoided in xmine-get-neighbours by storing the neighbour buttons
- directly in the button, but this seems to be a bit oversized for this
- little game."
- (if (or (> x xmine-width) (< x 1)
- (> y xmine-height) (< y 1)) nil
- (aref xmine-field (+ (* (1- y) xmine-width) (1- x)))))
-
- ;;;###autoload
- (defun xmine-mode ()
- "A mode for playing the well known mine searching game.
-
- `\\<annotation-local-map-default>\\[xmine-activate-function-button1]' or `\\<xmine-keymap>\\[xmine-key-action1]' unhides a tile,
- `\\<annotation-local-map-default>\\[xmine-activate-function-button2]' or `\\<xmine-keymap>\\[xmine-key-action2]' unhides all neighbours of a tile,
- `\\<annotation-local-map-default>\\[xmine-activate-function-button3]' or `\\<xmine-keymap>\\[xmine-key-action3]' (un)flagges a tile to hold a mine.
-
- `\\[xmine-key-new]' starts a new game.
- `\\[xmine-key-quit]' ends a game.
-
- All keybindings (with alternatives) currently in effect:
- \\{xmine-keymap}
-
- The rules are quite easy: You start by unhiding (random) tiles. An unhidden
- tile showing a number tells you something about the number of mines in it's
- neighborhood, where the neighborhood are all 8 tiles (or less if it's
- at a border) around the tile.
-
- E.g. a \"1\" shows you that there is only one mine in the neighborhood of
- this tile. Empty tiles have no mines around them, and empty tiles in
- the neighborhood of another empty tile are all automatically unhidden
- if you unhide one of them. You need to find a strategy to use the
- information you have from the numbers to \"flag\" the tiles with mines
- under them and unhide all other tiles. If you correctly made this
- without accidently unhiding a mine, you've won.
-
- If you are sure you have correctly flagged all mines around a unhidden tile,
- you can use Button-2 or \\[xmine-key-action2] on it to unhide all it's
- neighbors. But beware: If you made a mistake by flagging the wrong mines,
- you'll blow up!
-
- Have Fun."
- (interactive)
- (xmine-field-create))
-
- ;;;###autoload
- (fset 'xmine 'xmine-mode)
-
- (defun xmine-field-create ()
- "We create the playing board here."
- (let ((width 1)
- (height 1)
- (pop-up-windows nil)
- total)
- (xmine-buffer-init)
- (pop-to-buffer xmine-buffer)
- (setq total (* xmine-height xmine-width))
- (setq xmine-field (make-vector total nil))
- (xmine-init-mines
- (setq xmine-number-of-mines
- (min 99 (round (* (/ (float xmine-%-of-mines) 100) total)))))
- (insert "\n ")
- (set-extent-end-glyph (make-extent (point) (point)) xmine-title-glyph)
- (insert "\n\n")
- (while (<= height xmine-height)
- (insert " ")
- (while (<= width xmine-width)
- (if (xmine-field-button-at width height)
- (xmine-button-create width height "mine")
- (xmine-button-create width height "0"))
- (setq width (+ width 1)))
- (insert " \n")
- (setq width 1)
- (setq height (+ height 1)))
- (insert "\n ")
- (set-extent-begin-glyph (make-extent (point) (point)) xmine-pad-glyph)
- (setq xmine-new-ann
- (make-annotation xmine-new-up nil
- 'text nil nil xmine-new-down nil))
- (set-extent-property xmine-new-ann 'action1 '(lambda (&rest egal)
- (xmine-field-create)))
- (set-extent-property xmine-new-ann 'action2 nil)
- (set-extent-property xmine-new-ann 'action3 nil)
- (set-extent-property xmine-new-ann 'end-open t)
- (set-extent-begin-glyph (make-extent (point) (point)) xmine-pad-glyph)
- (setq xmine-count-ann
- (make-annotation xmine-count-glyph nil
- 'text nil nil nil nil))
- (set-extent-begin-glyph (make-extent (point) (point)) xmine-pad-glyph)
- (setq xmine-quit-ann
- (make-annotation xmine-quit-up nil
- 'text nil nil xmine-quit-down nil))
- (set-extent-property xmine-quit-ann 'action1
- '(lambda (&rest egal)
- (kill-buffer (current-buffer))))
- (set-extent-property xmine-quit-ann 'action2 nil)
- (set-extent-property xmine-quit-ann 'action3 nil)
- (set-extent-property xmine-quit-ann 'end-open t)
- (xmine-attach-numbers)
- (setq xmine-number-of-flagged 0)
- (setq xmine-number-of-opened 0)
- (set-annotation-glyph xmine-count-ann
- (make-glyph
- (format "Mines: %2d" xmine-number-of-mines)))
- (goto-char (point-min))
- (setq buffer-read-only 't)
- (if (eq window-system 'x)
- (set-specifier (face-background 'default)
- xmine-background xmine-buffer))
- (set-specifier (face-background 'text-cursor)
- xmine-background xmine-buffer)
- (setq xmine-key-sel-button nil)
- (xmine-select-button (xmine-field-button-at (/ xmine-width 2)
- (/ xmine-height 2)))))
-
-
- (defun xmine-init-mines (num)
- "A subroutine for xmine-field create.
- We randomly set a part of the nil-filled board vector with t to
- indicate the places where mines should reside."
- (let (x y elem)
- (random t)
- (while (> num 0)
- (setq x (1+ (random xmine-width)))
- (setq y (1+ (random xmine-height)))
- (setq elem (xmine-field-button-at x y))
- (if (not elem)
- (progn
- (aset xmine-field (+ (* (1- y) xmine-width) (1- x)) t)
- (setq num (1- num)))))))
-
- (defun xmine-attach-numbers ()
- "A subroutine for xmine-field-create.
- The board is populated by now with empty buttons and mines. Here we
- change the correct empty buttons to \"numbered\" buttons"
- (let
- ((buttons (append xmine-field nil))
- ext)
- (while (setq ext (pop buttons))
- (let ((num 0)
- (minep (xmine-mine-button-p ext))
- (neighbours (xmine-get-neighbours ext))
- next)
- (if (not minep)
- (progn
- (while (setq next (pop neighbours))
- (if (xmine-mine-button-p next) (setq num (1+ num))))
- (if (> num 0)
- (xmine-button-change-type ext (number-to-string num)))))))))
-
-
- (defun xmine-buffer-init ()
- "A subroutine for xmine-create-field.
- We set up the XMine buffer, set up the keymap and so on."
- (if xmine-buffer (kill-buffer xmine-buffer))
- (setq xmine-buffer (get-buffer-create "XEmacs Mine"))
- (save-excursion
- (set-buffer xmine-buffer)
- (kill-all-local-variables)
- (make-local-variable 'annotation-local-map-default)
- (setq truncate-lines 't)
- (setq major-mode 'xmine-mode)
- (setq mode-name "XMine")
- (put 'xmine-mode 'mode-class 'special)
- (use-local-map xmine-keymap)
- (buffer-disable-undo (current-buffer))
- (setq annotation-local-map-default
- (let ((map (make-sparse-keymap)))
- (set-keymap-name map 'annotation-local-map)
- (define-key map 'button1 'xmine-activate-function-button)
- (define-key map 'button2 'xmine-activate-function-button)
- (define-key map 'button3 'xmine-activate-function-button)
- map))
- (run-hooks 'xmine-mode-hook)))
-
- ;;; The keyboard navigation.
-
- (defun xmine-select-button (ext)
- (let ((flagged (extent-property ext 'xmine-flagged))
- (hidden (extent-property ext 'xmine-hidden))
- sel-glyph)
- (setq sel-glyph (if hidden
- (if flagged xmine-flagged-sel-glyph
- xmine-up-sel-glyph)
- (extent-property ext 'xmine-sel-glyph)))
- (if xmine-key-sel-button
- (set-annotation-glyph xmine-key-sel-button
- (extent-property xmine-key-sel-button
- 'xmine-non-selected-glyph)))
- (set-extent-property ext 'xmine-non-selected-glyph
- (annotation-glyph ext))
- (set-annotation-glyph ext sel-glyph)
- (setq xmine-key-sel-button ext)))
-
- (defun xmine-key-action1 ()
- (interactive)
- (let ((action (extent-property xmine-key-sel-button 'action1)))
- (if action
- (funcall action xmine-key-sel-button))))
-
- (defun xmine-key-action2 ()
- (interactive)
- (let ((action (extent-property xmine-key-sel-button 'action2)))
- (if (and action (xmine-enough-flagged-p xmine-key-sel-button))
- (funcall action xmine-key-sel-button)
- (beep))))
-
- (defun xmine-key-action3 ()
- (interactive)
- (let ((action (extent-property xmine-key-sel-button 'action3)))
- (if action
- (funcall action xmine-key-sel-button))))
-
- (defun xmine-key-quit ()
- (interactive)
- (kill-buffer (current-buffer)))
-
- (defun xmine-key-new ()
- (interactive)
- (xmine-field-create))
-
- (defun xmine-key-down-right ()
- (interactive)
- (xmine-key-down)
- (xmine-key-right))
-
- (defun xmine-key-down-left ()
- (interactive)
- (xmine-key-down)
- (xmine-key-left))
-
- (defun xmine-key-up-right ()
- (interactive)
- (xmine-key-up)
- (xmine-key-right))
-
- (defun xmine-key-up-left ()
- (interactive)
- (xmine-key-up)
- (xmine-key-left))
-
- (defun xmine-key-down ()
- (interactive)
- (let* ((x (extent-property xmine-key-sel-button 'xmine-x))
- (y (extent-property xmine-key-sel-button 'xmine-y))
- (ext (xmine-field-button-at x (1+ y))))
- (if ext (xmine-select-button ext)
- (xmine-select-button (xmine-field-button-at x 1)))))
-
- (defun xmine-key-up ()
- (interactive)
- (let* ((x (extent-property xmine-key-sel-button 'xmine-x))
- (y (extent-property xmine-key-sel-button 'xmine-y))
- (ext (xmine-field-button-at x (1- y))))
- (if ext (xmine-select-button ext)
- (xmine-select-button (xmine-field-button-at x xmine-height)))))
-
- (defun xmine-key-right ()
- (interactive)
- (let* ((x (extent-property xmine-key-sel-button 'xmine-x))
- (y (extent-property xmine-key-sel-button 'xmine-y))
- (ext (xmine-field-button-at (1+ x) y)))
- (if ext (xmine-select-button ext)
- (xmine-select-button (xmine-field-button-at 1 y)))))
-
- (defun xmine-key-left ()
- (interactive)
- (let* ((x (extent-property xmine-key-sel-button 'xmine-x))
- (y (extent-property xmine-key-sel-button 'xmine-y))
- (ext (xmine-field-button-at (1- x) y)))
- (if ext (xmine-select-button ext)
- (xmine-select-button (xmine-field-button-at xmine-width y)))))
-
- (provide 'xmine)
-
-