(eval-when-compile
(require 'cl))
(defvar gamegrid-use-glyphs t
"Non-nil means use glyphs when available.")
(defvar gamegrid-use-color t
"Non-nil means use color when available.")
(defvar gamegrid-font "-*-courier-medium-r-*-*-*-140-100-75-*-*-iso8859-*"
"Name of the font used in X mode.")
(defvar gamegrid-face nil
"Indicates the face to use as a default.")
(make-variable-buffer-local 'gamegrid-face)
(defvar gamegrid-display-options nil)
(defvar gamegrid-buffer-width 0)
(defvar gamegrid-buffer-height 0)
(defvar gamegrid-blank 0)
(defvar gamegrid-timer nil)
(defvar gamegrid-display-mode nil)
(defvar gamegrid-display-table)
(defvar gamegrid-face-table nil)
(defvar gamegrid-buffer-start 1)
(defvar gamegrid-score-file-length 50
"Number of high scores to keep")
(defvar gamegrid-user-score-file-directory "~/.emacs.d/games"
"A directory for game scores which can't be shared.
If Emacs was built without support for shared game scores, then this
directory will be used.")
(make-variable-buffer-local 'gamegrid-use-glyphs)
(make-variable-buffer-local 'gamegrid-use-color)
(make-variable-buffer-local 'gamegrid-font)
(make-variable-buffer-local 'gamegrid-display-options)
(make-variable-buffer-local 'gamegrid-buffer-width)
(make-variable-buffer-local 'gamegrid-buffer-height)
(make-variable-buffer-local 'gamegrid-blank)
(make-variable-buffer-local 'gamegrid-timer)
(make-variable-buffer-local 'gamegrid-display-mode)
(make-variable-buffer-local 'gamegrid-display-table)
(make-variable-buffer-local 'gamegrid-face-table)
(make-variable-buffer-local 'gamegrid-buffer-start)
(make-variable-buffer-local 'gamegrid-score-file-length)
(defvar gamegrid-grid-x-face nil)
(defvar gamegrid-mono-x-face nil)
(defvar gamegrid-mono-tty-face nil)
(defconst gamegrid-glyph-height 16)
(defconst gamegrid-xpm "\
/* XPM */
static char *noname[] = {
/* width height ncolors chars_per_pixel */
\"16 16 3 1\",
/* colors */
\"+ s col1\",
\". s col2\",
\"- s col3\",
/* pixels */
\"---------------+\",
\"--------------++\",
\"--............++\",
\"--............++\",
\"--............++\",
\"--............++\",
\"--............++\",
\"--............++\",
\"--............++\",
\"--............++\",
\"--............++\",
\"--............++\",
\"--............++\",
\"--............++\",
\"-+++++++++++++++\",
\"++++++++++++++++\"
};
"
"XPM format image used for each square")
(defvar gamegrid-xbm "\
/* gamegrid XBM */
#define gamegrid_width 16
#define gamegrid_height 16
static unsigned char gamegrid_bits[] = {
0xff, 0xff, 0xff, 0x7f, 0xff, 0x3f, 0xaf, 0x0a, 0x57, 0x15, 0xaf, 0x0a,
0x57, 0x15, 0xaf, 0x0a, 0x57, 0x15, 0xaf, 0x0a, 0x57, 0x15, 0xaf, 0x0a,
0x57, 0x15, 0x07, 0x00, 0x03, 0x00, 0x01, 0x00 };"
"XBM format image used for each square.")
(defsubst gamegrid-characterp (arg)
(if (fboundp 'characterp)
(characterp arg)
(integerp arg)))
(defsubst gamegrid-event-x (event)
(if (fboundp 'event-x)
(event-x event)
(car (posn-col-row (event-end event)))))
(defsubst gamegrid-event-y (event)
(if (fboundp 'event-y)
(event-y event)
(cdr (posn-col-row (event-end event)))))
(defun gamegrid-color (color shade)
(let* ((v (floor (* shade 255)))
(r (* v (aref color 0)))
(g (* v (aref color 1)))
(b (* v (aref color 2))))
(format "#%02x%02x%02x" r g b)))
(defun gamegrid-set-font (face)
(if gamegrid-font
(condition-case nil
(set-face-font face gamegrid-font)
(error nil))))
(defun gamegrid-setup-face (face color)
(set-face-foreground face color)
(set-face-background face color)
(gamegrid-set-font face)
(condition-case nil
(set-face-background-pixmap face [nothing]) (error nil))
(condition-case nil
(set-face-background-pixmap face nil) (error nil)))
(defun gamegrid-make-mono-tty-face ()
(let ((face (make-face 'gamegrid-mono-tty-face)))
(set-face-inverse-video-p face t)
face))
(defun gamegrid-make-color-tty-face (color)
(let* ((color-str (if (symbolp color) (symbol-value color) color))
(name (intern (format "gamegrid-color-tty-face-%s" color-str)))
(face (make-face name)))
(gamegrid-setup-face face color-str)
face))
(defun gamegrid-make-grid-x-face ()
(let ((face (make-face 'gamegrid-x-border-face)))
(gamegrid-set-font face)
face))
(defun gamegrid-make-mono-x-face ()
(let ((face (make-face 'gamegrid-mono-x-face))
(color (face-foreground 'default)))
(if (null color)
(setq color
(cdr-safe (assq 'foreground-color (frame-parameters)))))
(gamegrid-setup-face face color)
face))
(defun gamegrid-make-color-x-face (color)
(let* ((hex (gamegrid-color color 1.0))
(name (intern (format "gamegrid-color-x-face-%s" hex)))
(face (make-face name)))
(gamegrid-setup-face face hex)
face))
(defun gamegrid-make-face (data-spec-list color-spec-list)
(let ((data (gamegrid-match-spec-list data-spec-list))
(color (gamegrid-match-spec-list color-spec-list)))
(case data
('color-x
(gamegrid-make-color-x-face color))
('grid-x
(unless gamegrid-grid-x-face
(setq gamegrid-grid-x-face (gamegrid-make-grid-x-face)))
gamegrid-grid-x-face)
('mono-x
(unless gamegrid-mono-x-face
(setq gamegrid-mono-x-face (gamegrid-make-mono-x-face)))
gamegrid-mono-x-face)
('color-tty
(gamegrid-make-color-tty-face color))
('mono-tty
(unless gamegrid-mono-tty-face
(setq gamegrid-mono-tty-face (gamegrid-make-mono-tty-face)))
gamegrid-mono-tty-face))))
(defun gamegrid-colorize-glyph (color)
(find-image `((:type xpm :data ,gamegrid-xpm
:ascent center
:color-symbols
(("col1" . ,(gamegrid-color color 0.6))
("col2" . ,(gamegrid-color color 0.8))
("col3" . ,(gamegrid-color color 1.0))))
(:type xbm :data ,gamegrid-xbm
:ascent center
:foreground ,(gamegrid-color color 1.0)
:background ,(gamegrid-color color 0.5)))))
(defun gamegrid-match-spec (spec)
(let ((locale (car spec))
(value (cadr spec)))
(and (or (eq locale t)
(and (listp locale)
(memq gamegrid-display-mode locale))
(and (symbolp locale)
(eq gamegrid-display-mode locale)))
value)))
(defun gamegrid-match-spec-list (spec-list)
(and spec-list
(or (gamegrid-match-spec (car spec-list))
(gamegrid-match-spec-list (cdr spec-list)))))
(defun gamegrid-make-glyph (data-spec-list color-spec-list)
(let ((data (gamegrid-match-spec-list data-spec-list))
(color (gamegrid-match-spec-list color-spec-list)))
(cond ((gamegrid-characterp data)
(vector data))
((eq data 'colorize)
(gamegrid-colorize-glyph color))
((listp data)
(find-image data)) ((vectorp data)
(gamegrid-make-image-from-vector data)))))
(defun gamegrid-make-image-from-vector (vect)
"Convert an XEmacs style \"glyph\" to an image-spec."
(let ((l (list 'image :type)))
(dotimes (n (length vect))
(setf l (nconc l (list (aref vect n)))))
(nconc l (list :ascent 'center))))
(defun gamegrid-display-type ()
(cond ((and gamegrid-use-glyphs
(display-images-p))
'glyph)
((and gamegrid-use-color
(display-graphic-p)
(display-color-p))
'color-x)
((display-graphic-p)
'mono-x)
((and gamegrid-use-color
(display-color-p))
'color-tty)
((display-multi-font-p) 'mono-tty)
(t
'emacs-tty)))
(defun gamegrid-set-display-table ()
(if (featurep 'xemacs)
(add-spec-to-specifier current-display-table
gamegrid-display-table
(current-buffer)
nil
'remove-locale)
(setq buffer-display-table gamegrid-display-table)))
(defun gamegrid-setup-default-font ()
(setq gamegrid-face
(copy-face 'default
(intern (concat "gamegrid-face-" (buffer-name)))))
(when (eq gamegrid-display-mode 'glyph)
(let ((max-height nil))
(loop for c from 0 to 255 do
(let ((glyph (aref gamegrid-display-table c)))
(when (and (listp glyph) (eq (car glyph) 'image))
(let ((height (cdr (image-size glyph))))
(if (or (null max-height)
(< max-height height))
(setq max-height height))))))
(when (and max-height (< max-height 1))
(set-face-attribute gamegrid-face nil :height max-height)))))
(defun gamegrid-initialize-display ()
(setq gamegrid-display-mode (gamegrid-display-type))
(setq gamegrid-display-table (make-display-table))
(setq gamegrid-face-table (make-vector 256 nil))
(loop for c from 0 to 255 do
(let* ((spec (aref gamegrid-display-options c))
(glyph (gamegrid-make-glyph (car spec) (caddr spec)))
(face (gamegrid-make-face (cadr spec) (caddr spec))))
(aset gamegrid-face-table c face)
(aset gamegrid-display-table c glyph)))
(gamegrid-setup-default-font)
(gamegrid-set-display-table)
(setq cursor-type nil))
(defun gamegrid-set-face (c)
(if (eq gamegrid-display-mode 'glyph)
(add-text-properties (1- (point)) (point)
(list 'display (list (aref gamegrid-display-table c))))
(put-text-property (1- (point))
(point)
'face
(aref gamegrid-face-table c))))
(defun gamegrid-cell-offset (x y)
(+ gamegrid-buffer-start
(* (1+ gamegrid-buffer-width) y)
x))
(defun gamegrid-get-cell (x y)
(char-after (gamegrid-cell-offset x y)))
(defun gamegrid-set-cell (x y c)
(save-excursion
(let ((buffer-read-only nil))
(goto-char (gamegrid-cell-offset x y))
(delete-char 1)
(insert-char c 1)
(gamegrid-set-face c))))
(defun gamegrid-init-buffer (width height blank)
(setq gamegrid-buffer-width width
gamegrid-buffer-height height)
(let ((line (concat
(make-string width blank)
"\n"))
(buffer-read-only nil))
(erase-buffer)
(setq gamegrid-buffer-start (point))
(dotimes (i height)
(insert line))
(when (eq gamegrid-display-mode 'glyph)
(overlay-put (make-overlay (point-min) (point-max))
'face gamegrid-face))
(goto-char (point-min))))
(defun gamegrid-init (options)
(setq buffer-read-only t
truncate-lines t
gamegrid-display-options options)
(buffer-disable-undo (current-buffer))
(gamegrid-initialize-display))
(defun gamegrid-start-timer (period func)
(setq gamegrid-timer
(if (featurep 'itimer)
(start-itimer "Gamegrid"
func
period
period
nil
t
(current-buffer))
(run-with-timer period
period
func
(current-buffer)))))
(defun gamegrid-set-timer (delay)
(if gamegrid-timer
(if (fboundp 'set-itimer-restart)
(set-itimer-restart gamegrid-timer delay)
(timer-set-time gamegrid-timer
(list (aref gamegrid-timer 1)
(aref gamegrid-timer 2)
(aref gamegrid-timer 3))
delay))))
(defun gamegrid-kill-timer ()
(if gamegrid-timer
(if (featurep 'itimer)
(delete-itimer gamegrid-timer)
(cancel-timer gamegrid-timer)))
(setq gamegrid-timer nil))
(defun gamegrid-add-score (file score)
"Add the current score to the high score file.
On POSIX systems there may be a shared game directory for all users in
which the scorefiles are kept. On such systems Emacs doesn't create
the score file FILE in this directory, if it doesn't already exist. In
this case Emacs searches for FILE in the directory specified by
`gamegrid-user-score-file-directory' and creates it there, if
necessary.
To add the score file for a game to the system wide shared game
directory, create the file with the shell command \"touch\" in this
directory and make sure that it is owned by the correct user and
group. You probably need special user privileges to do this.
On non-POSIX systems Emacs searches for FILE in the directory
specified by the variable `temporary-file-directory'. If necessary,
FILE is created there."
(case system-type
((ms-dos windows-nt)
(gamegrid-add-score-insecure file score))
(t
(gamegrid-add-score-with-update-game-score file score))))
(defvar gamegrid-shared-game-dir)
(defun gamegrid-add-score-with-update-game-score (file score)
(let* ((result nil) (gamegrid-shared-game-dir
(not (zerop (logand (file-modes
(expand-file-name "update-game-score"
exec-directory))
#o4000)))))
(cond ((file-name-absolute-p file)
(gamegrid-add-score-insecure file score))
((and gamegrid-shared-game-dir
(file-exists-p (expand-file-name file shared-game-score-directory)))
(gamegrid-add-score-with-update-game-score-1 file
(expand-file-name file shared-game-score-directory) score))
(gamegrid-shared-game-dir
(unless (file-exists-p
(directory-file-name gamegrid-user-score-file-directory))
(make-directory gamegrid-user-score-file-directory t))
(gamegrid-add-score-insecure file score
gamegrid-user-score-file-directory))
(t (let ((f (expand-file-name
gamegrid-user-score-file-directory)))
(when (file-writable-p f)
(unless (eq (car-safe (file-attributes f))
t)
(make-directory f))
(setq f (expand-file-name file f))
(unless (file-exists-p f)
(write-region "" nil f nil 'silent nil 'excl)))
(gamegrid-add-score-with-update-game-score-1 file f score))))))
(defun gamegrid-add-score-with-update-game-score-1 (file target score)
(let ((default-directory "/")
(errbuf (generate-new-buffer " *update-game-score loss*"))
(marker-string (concat
(user-full-name)
" <"
(cond ((fboundp 'user-mail-address)
(user-mail-address))
((boundp 'user-mail-address)
user-mail-address)
(t ""))
"> "
(current-time-string))))
(with-local-quit
(apply
'call-process
(append
(list
(expand-file-name "update-game-score" exec-directory)
nil errbuf nil
"-m" (int-to-string gamegrid-score-file-length)
"-d" (if gamegrid-shared-game-dir
(expand-file-name shared-game-score-directory)
(file-name-directory target))
file
(int-to-string score)
marker-string))))
(if (buffer-modified-p errbuf)
(progn
(display-buffer errbuf)
(error "Failed to update game score file"))
(kill-buffer errbuf))
(let ((buf (find-buffer-visiting target)))
(save-excursion
(if buf
(progn
(switch-to-buffer buf)
(revert-buffer nil t nil)
(display-buffer buf))
(find-file-read-only target))
(goto-char (point-min))
(search-forward (concat (int-to-string score)
" " (user-login-name) " "
marker-string))
(beginning-of-line)))))
(defun gamegrid-add-score-insecure (file score &optional directory)
(save-excursion
(setq file (expand-file-name file (or directory
temporary-file-directory)))
(find-file-other-window file)
(setq buffer-read-only nil)
(goto-char (point-max))
(insert (format "%05d\t%s\t%s <%s>\n"
score
(current-time-string)
(user-full-name)
(cond ((fboundp 'user-mail-address)
(user-mail-address))
((boundp 'user-mail-address)
user-mail-address)
(t ""))))
(sort-fields 1 (point-min) (point-max))
(reverse-region (point-min) (point-max))
(goto-line (1+ gamegrid-score-file-length))
(delete-region (point) (point-max))
(setq buffer-read-only t)
(save-buffer)))
(provide 'gamegrid)