lisp/play/bubbles.el

   1 ;;; bubbles.el --- Puzzle game for Emacs -*- coding: utf-8 -*-
   2
   3 ;; Copyright (C) 2007-2014 Free Software Foundation, Inc.
   4
   5 ;; Author:      Ulf Jasper <ulf.jasper@web.de>
   6 ;; URL:         http://ulf.epplejasper.de/
   7 ;; Created:     5. Feb. 2007
   8 ;; Keywords:    games
   9
  10 ;; This file is part of GNU Emacs.
  11
  12 ;; GNU Emacs is free software: you can redistribute it and/or modify
  13 ;; it under the terms of the GNU General Public License as published by
  14 ;; the Free Software Foundation, either version 3 of the License, or
  15 ;; (at your option) any later version.
  16
  17 ;; GNU Emacs is distributed in the hope that it will be useful,
  18 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  19 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20 ;; GNU General Public License for more details.
  21
  22 ;; You should have received a copy of the GNU General Public License
  23 ;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
  24
  25 ;;; Commentary:
  26
  27 ;; Bubbles is a puzzle game.  Its goal is to remove as many bubbles as
  28 ;; possible in as few moves as possible.
  29
  30 ;; Bubbles is an implementation of the "Same Game", similar to "Same
  31 ;; GNOME" and many others, see <http://en.wikipedia.org/wiki/SameGame>.
  32
  33 ;; Installation
  34 ;; ------------
  35
  36 ;; Add the following lines to your init file:
  37 ;; (add-to-list 'load-path "/path/to/bubbles/")
  38 ;; (autoload 'bubbles "bubbles" "Play Bubbles" t)
  39
  40 ;; ======================================================================
  41
  42 ;;; History:
  43
  44 ;; 0.5 (2007-09-14)
  45 ;;     - Minor bugfixes.
  46
  47 ;; 0.4 (2007-08-27)
  48 ;;     - Allow for undoing last move.
  49 ;;     - Bonus for removing all bubbles.
  50 ;;     - Speed improvements.
  51 ;;     - Animation enhancements.
  52 ;;     - Added `bubbles-mode-hook'.
  53 ;;     - Fixes: Don't move point.
  54 ;;     - New URL.
  55
  56 ;; 0.3 (2007-03-11)
  57 ;;     - Renamed shift modes and thus names of score files. All
  58 ;;       high scores are lost, unless you rename the score files from
  59 ;;       bubbles-shift-... to bubbles-...!
  60 ;;     - Bugfixes: Check for successful image creation.
  61 ;;                 Disable menus and counter when game is over.
  62 ;;     Tested with GNU Emacs 22.0.93
  63
  64 ;; 0.2 (2007-02-24)
  65 ;;     - Introduced game themes.
  66 ;;     - Introduced graphics themes (changeable while playing).
  67 ;;     - Added menu.
  68 ;;     - Customization: grid size, colors, chars, shift mode.
  69 ;;     - More keybindings.
  70 ;;     - Changed shift direction from to-right to to-left.
  71 ;;     - Bugfixes: Don't remove single-bubble regions;
  72 ;;                 Animation glitches fixed.
  73 ;;     Tested with GNU Emacs 22.0.93 and 21.4.1.
  74
  75 ;; 0.1 (2007-02-11)
  76 ;;     Initial release. Tested with GNU Emacs 22.0.93 and 21.4.1.
  77
  78 ;; ======================================================================
  79
  80 ;;; Code:
  81
  82 (defconst bubbles-version "0.5" "Version number of bubbles.el.")
  83
  84 (require 'gamegrid)
  85
  86 ;; User options
  87
  88 ;; Careful with that axe, Eugene! Order does matter in the custom
  89 ;; section below.
  90
  91 (defcustom bubbles-game-theme
  92   'easy
  93   "Overall game theme.
  94 The overall game theme specifies a grid size, a set of colors,
  95 and a shift mode."
  96   :type '(radio (const :tag "Easy" easy)
  97                 (const :tag "Medium" medium)
  98                 (const :tag "Difficult" difficult)
  99                 (const :tag "Hard" hard)
 100                 (const :tag "User defined" user-defined))
 101   :group 'bubbles)
 102
 103 (defun bubbles-set-game-easy ()
 104   "Set game theme to 'easy'."
 105   (interactive)
 106   (setq bubbles-game-theme 'easy)
 107   (bubbles))
 108
 109 (defun bubbles-set-game-medium ()
 110   "Set game theme to 'medium'."
 111   (interactive)
 112   (setq bubbles-game-theme 'medium)
 113   (bubbles))
 114
 115 (defun bubbles-set-game-difficult ()
 116   "Set game theme to 'difficult'."
 117   (interactive)
 118   (setq bubbles-game-theme 'difficult)
 119   (bubbles))
 120
 121 (defun bubbles-set-game-hard ()
 122   "Set game theme to 'hard'."
 123   (interactive)
 124   (setq bubbles-game-theme 'hard)
 125   (bubbles))
 126
 127 (defun bubbles-set-game-userdefined ()
 128   "Set game theme to 'user-defined'."
 129   (interactive)
 130   (setq bubbles-game-theme 'user-defined)
 131   (bubbles))
 132
 133 (defgroup bubbles nil
 134   "Bubbles, a puzzle game."
 135   :group 'games)
 136
 137 (defcustom bubbles-graphics-theme
 138   'circles
 139   "Graphics theme.
 140 It is safe to choose a graphical theme.  If Emacs cannot display
 141 images the `ascii' theme will be used."
 142   :type '(radio (const :tag "Circles" circles)
 143                 (const :tag "Squares" squares)
 144                 (const :tag "Diamonds" diamonds)
 145                 (const :tag "Balls" balls)
 146                 (const :tag "Emacs" emacs)
 147                 (const :tag "ASCII (no images)" ascii))
 148   :group 'bubbles)
 149
 150 (defconst bubbles--grid-small '(10 . 10)
 151   "Predefined small bubbles grid.")
 152
 153 (defconst bubbles--grid-medium '(15 . 10)
 154   "Predefined medium bubbles grid.")
 155
 156 (defconst bubbles--grid-large '(20 . 15)
 157   "Predefined large bubbles grid.")
 158
 159 (defconst bubbles--grid-huge '(30 . 20)
 160   "Predefined huge bubbles grid.")
 161
 162 (defcustom bubbles-grid-size
 163   bubbles--grid-medium
 164   "Size of bubbles grid."
 165   :type `(radio (const :tag "Small" ,bubbles--grid-small)
 166                 (const :tag "Medium" ,bubbles--grid-medium)
 167                 (const :tag "Large" ,bubbles--grid-large)
 168                 (const :tag "Huge" ,bubbles--grid-huge)
 169                 (cons :tag "User defined"
 170                       (integer :tag "Width")
 171                       (integer :tag "Height")))
 172   :group 'bubbles)
 173
 174 (defconst bubbles--colors-2 '("orange" "violet")
 175   "Predefined bubbles color list with two colors.")
 176
 177 (defconst bubbles--colors-3 '("lightblue" "palegreen" "pink")
 178   "Predefined bubbles color list with three colors.")
 179
 180 (defconst bubbles--colors-4 '("firebrick" "sea green" "steel blue" "chocolate")
 181   "Predefined bubbles color list with four colors.")
 182
 183 (defconst bubbles--colors-5 '("firebrick" "sea green" "steel blue"
 184                               "sandy brown" "bisque3")
 185   "Predefined bubbles color list with five colors.")
 186
 187 (defcustom bubbles-colors
 188   bubbles--colors-3
 189   "List of bubble colors.
 190 The length of this list determines how many different bubble
 191 types are present."
 192   :type `(radio (const :tag "Red, darkgreen" ,bubbles--colors-2)
 193                 (const :tag "Red, darkgreen, blue" ,bubbles--colors-3)
 194                 (const :tag "Red, darkgreen, blue, orange" ,bubbles--colors-4)
 195                 (const :tag "Red, darkgreen, blue, orange, violet"
 196                        ,bubbles--colors-5)
 197                 (repeat :tag "User defined" color))
 198   :group 'bubbles)
 199
 200 (defcustom bubbles-chars
 201   '(?+ ?O ?# ?X ?. ?* ?& ?§)
 202   "Characters used for bubbles.
 203 Note that the actual number of different bubbles is determined by
 204 the number of colors, see `bubbles-colors'."
 205   :type '(repeat character)
 206   :group 'bubbles)
 207
 208 (defcustom bubbles-shift-mode
 209   'default
 210   "Shift mode.
 211 Available modes are `shift-default' and `shift-always'."
 212   :type '(radio (const :tag "Default" default)
 213                 (const :tag "Shifter" always)
 214                 ;;(const :tag "Mega Shifter" mega)
 215                 )
 216   :group 'bubbles)
 217
 218 (defcustom bubbles-mode-hook nil
 219   "Hook run by Bubbles mode."
 220   :group 'bubbles
 221   :type 'hook)
 222
 223 (defun bubbles-customize ()
 224   "Open customization buffer for bubbles."
 225   (interactive)
 226   (customize-group 'bubbles))
 227
 228 ;; ======================================================================
 229 ;; internal variables
 230
 231 (defvar bubbles--score 0
 232   "Current Bubbles score.")
 233
 234 (defvar bubbles--neighborhood-score 0
 235   "Score of active bubbles neighborhood.")
 236
 237 (defvar bubbles--faces nil
 238   "List of currently used faces.")
 239
 240 (defvar bubbles--playing nil
 241   "Play status indicator.")
 242
 243 (defvar bubbles--empty-image nil
 244   "Image used for removed bubbles (empty grid cells).")
 245
 246 (defvar bubbles--images nil
 247   "List of images for bubbles.")
 248
 249 (defvar bubbles--images-ok nil
 250   "Indicate whether images have been created successfully.")
 251
 252 (defvar bubbles--col-offset 0
 253   "Horizontal offset for centering the bubbles grid.")
 254
 255 (defvar bubbles--row-offset 0
 256   "Vertical offset for centering the bubbles grid.")
 257
 258 (defvar bubbles--save-data nil
 259   "List containing bubbles save data (SCORE BUFFERCONTENTS).")
 260
 261 (defconst bubbles--image-template-circle
 262   "/* XPM */
 263 static char * dot_xpm[] = {
 264 \"20 20 2 1\",
 265 \"      c None\",
 266 \".     c #FFFFFF\",
 267 \"       ......       \",
 268 \"     ..........     \",
 269 \"   ..............   \",
 270 \"  ................  \",
 271 \"  ................  \",
 272 \" .................. \",
 273 \" .................. \",
 274 \"....................\",
 275 \"....................\",
 276 \"....................\",
 277 \"....................\",
 278 \"....................\",
 279 \"....................\",
 280 \" .................. \",
 281 \" .................. \",
 282 \"  ................  \",
 283 \"  ................  \",
 284 \"   ..............   \",
 285 \"     ..........     \",
 286 \"       ......       \"};")
 287
 288 (defconst bubbles--image-template-square
 289   "/* XPM */
 290 static char * dot_xpm[] = {
 291 \"20 20 2 1\",
 292 \"0     c None\",
 293 \"1     c #FFFFFF\",
 294 \"00000000000000000000\",
 295 \"01111111111111111110\",
 296 \"01111111111111111110\",
 297 \"01111111111111111110\",
 298 \"01111111111111111110\",
 299 \"01111111111111111110\",
 300 \"01111111111111111110\",
 301 \"01111111111111111110\",
 302 \"01111111111111111110\",
 303 \"01111111111111111110\",
 304 \"01111111111111111110\",
 305 \"01111111111111111110\",
 306 \"01111111111111111110\",
 307 \"01111111111111111110\",
 308 \"01111111111111111110\",
 309 \"01111111111111111110\",
 310 \"01111111111111111110\",
 311 \"01111111111111111110\",
 312 \"01111111111111111110\",
 313 \"00000000000000000000\"};")
 314
 315 (defconst bubbles--image-template-diamond
 316   "/* XPM */
 317 static char * dot_xpm[] = {
 318 \"20 20 2 1\",
 319 \"0     c None\",
 320 \"1     c #FFFFFF\",
 321 \"00000000011000000000\",
 322 \"00000000111100000000\",
 323 \"00000001111110000000\",
 324 \"00000011111111000000\",
 325 \"00000111111111100000\",
 326 \"00001111111111110000\",
 327 \"00011111111111111000\",
 328 \"00111111111111111100\",
 329 \"01111111111111111110\",
 330 \"11111111111111111111\",
 331 \"01111111111111111110\",
 332 \"00111111111111111100\",
 333 \"00011111111111111000\",
 334 \"00001111111111110000\",
 335 \"00000111111111100000\",
 336 \"00000011111111000000\",
 337 \"00000001111110000000\",
 338 \"00000000111100000000\",
 339 \"00000000011000000000\",
 340 \"00000000000000000000\"};")
 341
 342 (defconst bubbles--image-template-emacs
 343   "/* XPM */
 344 static char * emacs_24_xpm[] = {
 345 \"24 24 129 2\",
 346 \"      c None\",
 347 \".     c #837DA4\",
 348 \"+     c #807AA0\",
 349 \"@     c #9894B2\",
 350 \"#     c #CCCAD9\",
 351 \"$     c #C2C0D2\",
 352 \"%     c #B6B3C9\",
 353 \"&     c #A19DB9\",
 354 \"*     c #8681A5\",
 355 \"=     c #7D779B\",
 356 \"-     c #B6B3C7\",
 357 \";     c #ABA7BE\",
 358 \">     c #9792AF\",
 359 \",     c #AAA6BD\",
 360 \"'     c #CBC9D7\",
 361 \")     c #AAA7BE\",
 362 \"!     c #908BAA\",
 363 \"~     c #797397\",
 364 \"{     c #948FAC\",
 365 \"]     c #9A95B1\",
 366 \"^     c #EBEAEF\",
 367 \"/     c #F1F1F5\",
 368 \"(     c #BCB9CB\",
 369 \"_     c #A9A5BD\",
 370 \":     c #757093\",
 371 \"<     c #918DA9\",
 372 \"[     c #DDDBE4\",
 373 \"}     c #FFFFFF\",
 374 \"|     c #EAE9EF\",
 375 \"1     c #A7A4BA\",
 376 \"2     c #716C8F\",
 377 \"3     c #8D89A5\",
 378 \"4     c #9C98B1\",
 379 \"5     c #DBDAE3\",
 380 \"6     c #A4A1B7\",
 381 \"7     c #6E698A\",
 382 \"8     c #8B87A1\",
 383 \"9     c #928EA7\",
 384 \"0     c #C5C3D1\",
 385 \"a     c #F8F8F9\",
 386 \"b     c #CCCAD6\",
 387 \"c     c #A29FB4\",
 388 \"d     c #6A6585\",
 389 \"e     c #88849D\",
 390 \"f     c #B5B2C2\",
 391 \"g     c #F0F0F3\",
 392 \"h     c #E1E0E6\",
 393 \"i     c #A5A2B5\",
 394 \"j     c #A09DB1\",
 395 \"k     c #676281\",
 396 \"l     c #85819A\",
 397 \"m     c #9591A7\",
 398 \"n     c #E1E0E5\",
 399 \"o     c #F0EFF2\",
 400 \"p     c #B3B0C0\",
 401 \"q     c #9D9AAE\",
 402 \"r     c #635F7C\",
 403 \"s     c #827F96\",
 404 \"t     c #9997AA\",
 405 \"u     c #F7F7F9\",
 406 \"v     c #C8C7D1\",
 407 \"w     c #89869D\",
 408 \"x     c #9B99AB\",
 409 \"y     c #5F5B78\",
 410 \"z     c #7F7C93\",
 411 \"A     c #CFCDD6\",
 412 \"B     c #B7B5C2\",
 413 \"C     c #9996A9\",
 414 \"D     c #5C5873\",
 415 \"E     c #7A778D\",
 416 \"F     c #F5F5F6\",
 417 \"G     c #8E8C9E\",
 418 \"H     c #7D798F\",
 419 \"I     c #58546F\",
 420 \"J     c #6C6981\",
 421 \"K     c #D5D4DB\",
 422 \"L     c #F5F4F6\",
 423 \"M     c #9794A5\",
 424 \"N     c #625F78\",
 425 \"O     c #79768C\",
 426 \"P     c #55516A\",
 427 \"Q     c #605C73\",
 428 \"R     c #CAC9D1\",
 429 \"S     c #EAE9EC\",
 430 \"T     c #B4B3BE\",
 431 \"U     c #777488\",
 432 \"V     c #514E66\",
 433 \"W     c #DEDEE2\",
 434 \"X     c #F4F4F5\",
 435 \"Y     c #9D9BA9\",
 436 \"Z     c #747185\",
 437 \"`     c #4E4B62\",
 438 \" .    c #DEDDE1\",
 439 \"..    c #A6A5B0\",
 440 \"+.    c #716F81\",
 441 \"@.    c #4A475D\",
 442 \"#.    c #A4A3AE\",
 443 \"$.    c #F4F3F5\",
 444 \"%.    c #777586\",
 445 \"&.    c #6E6C7D\",
 446 \"*.    c #464358\",
 447 \"=.    c #514E62\",
 448 \"-.    c #B9B8C0\",
 449 \";.    c #D1D0D5\",
 450 \">.    c #747282\",
 451 \",.    c #6B6979\",
 452 \"'.    c #434054\",
 453 \").    c #5A5769\",
 454 \"!.    c #D0CFD4\",
 455 \"~.    c #5B5869\",
 456 \"{.    c #696676\",
 457 \"].    c #403D50\",
 458 \"^.    c #DBDADE\",
 459 \"/.    c #F3F3F4\",
 460 \"(.    c #646271\",
 461 \"_.    c #666473\",
 462 \":.    c #3D3A4C\",
 463 \"<.    c #555362\",
 464 \"[.    c #9E9DA6\",
 465 \"}.    c #9E9CA5\",
 466 \"|.    c #646170\",
 467 \"1.    c #393647\",
 468 \"2.    c #514E5D\",
 469 \"3.    c #83818C\",
 470 \"4.    c #A8A7AE\",
 471 \"5.    c #E6E6E8\",
 472 \"6.    c #DAD9DC\",
 473 \"7.    c #353343\",
 474 \"8.    c #32303E\",
 475 \"      . . . . . . . . . . . . . . . . . .       \",
 476 \"  + @ # $ % % % % % % % % % % % % % % & * + +   \",
 477 \"  = - ; > > > > > > > > , ' ) > > > > > > ! =   \",
 478 \"~ ~ { { { { { { { { { { { ] ^ / ( { { { { _ ~ ~ \",
 479 \": : < < < < < < < < < < < < [ } } | < < < 1 : : \",
 480 \"2 2 3 3 3 3 3 3 3 3 3 3 4 5 } } } 5 3 3 3 6 2 2 \",
 481 \"7 7 8 8 8 8 8 8 8 8 9 0 a } } } b 8 8 8 8 c 7 7 \",
 482 \"d d e e e e e e e f g } } } h i e e e e e j d d \",
 483 \"k k l l l l l m n } } } o p l l l l l l l q k k \",
 484 \"r r s s s s t u } } } v w s s s s s s s s x r r \",
 485 \"y y z z z z A } } } B z z z z z z z z z z C y y \",
 486 \"D D D D D D E F } } G D D D D D D D D D D H D D \",
 487 \"I I I I I I I J K } L M N I I I I I I I I O I I \",
 488 \"P P P P P P Q R } } } S T P P P P P P P P U P P \",
 489 \"V V V V V V W } } X Y V V V V V V V V V V Z V V \",
 490 \"` ` ` ` ` `  .} } ..` ` ` ` ` ` ` ` ` ` ` +.` ` \",
 491 \"@.@.@.@.@.@.@.#.$.$.%.@.@.@.@.@.@.@.@.@.@.&.@.@.\",
 492 \"*.*.*.*.*.*.*.*.=.-.} ;.>.*.*.*.*.*.*.*.*.,.*.*.\",
 493 \"'.'.'.'.'.'.'.'.'.'.).!.} !.~.'.'.'.'.'.'.{.'.'.\",
 494 \"].].].].].].].].].].].].^.} /.(.].].].].]._.].].\",
 495 \":.:.:.:.:.:.:.:.:.:.<.[./.} } }.:.:.:.:.:.|.:.:.\",
 496 \"  1.1.1.1.1.1.1.1.2.3.4.5.6.3.1.1.1.1.1.1.1.1.  \",
 497 \"  7.7.7.7.7.7.7.7.7.7.7.7.7.7.7.7.7.7.7.7.7.7.  \",
 498 \"      8.8.8.8.8.8.8.8.8.8.8.8.8.8.8.8.8.8.      \"};")
 499
 500 (defconst bubbles--image-template-ball
 501   "/* XPM */
 502 static char * dot3d_xpm[] = {
 503 \"20 20 190 2\",
 504 \"      c None\",
 505 \".     c #F9F6F6\",
 506 \"+     c #D6D0D0\",
 507 \"@     c #BFBBBB\",
 508 \"#     c #AAA4A4\",
 509 \"$     c #ABAAAB\",
 510 \"%     c #A8A8A8\",
 511 \"&     c #A29D9D\",
 512 \"*     c #B5B2B2\",
 513 \"=     c #CDC9C9\",
 514 \"-     c #D7D0D0\",
 515 \";     c #B3AFAF\",
 516 \">     c #B5B5B5\",
 517 \",     c #B7B7B7\",
 518 \"'     c #B8B8B8\",
 519 \")     c #B6B6B6\",
 520 \"!     c #B3B3B3\",
 521 \"~     c #AFAFAF\",
 522 \"{     c #A9A9A9\",
 523 \"]     c #A2A2A2\",
 524 \"^     c #9C9A9A\",
 525 \"/     c #C9C5C5\",
 526 \"(     c #FDFBFB\",
 527 \"_     c #C3BCBC\",
 528 \":     c #BBBBBB\",
 529 \"<     c #C0C0C0\",
 530 \"[     c #C3C2C2\",
 531 \"}     c #C3C3C3\",
 532 \"|     c #C2C2C2\",
 533 \"1     c #BEBEBE\",
 534 \"2     c #B9B9B9\",
 535 \"3     c #B2B2B2\",
 536 \"4     c #ABAAAA\",
 537 \"5     c #999999\",
 538 \"6     c #ACA7A7\",
 539 \"7     c #C2BBBB\",
 540 \"8     c #C5C5C5\",
 541 \"9     c #CACBCB\",
 542 \"0     c #CECECE\",
 543 \"a     c #CFCFCF\",
 544 \"b     c #CDCDCD\",
 545 \"c     c #C8C9C9\",
 546 \"d     c #9F9F9F\",
 547 \"e     c #959595\",
 548 \"f     c #A9A5A5\",
 549 \"g     c #D5CFCE\",
 550 \"h     c #BDBDBD\",
 551 \"i     c #C6C6C6\",
 552 \"j     c #D5D5D5\",
 553 \"k     c #D9D9D9\",
 554 \"l     c #DADADA\",
 555 \"m     c #D8D8D8\",
 556 \"n     c #D2D2D2\",
 557 \"o     c #CBCBCB\",
 558 \"p     c #A4A4A5\",
 559 \"q     c #9A9A9A\",
 560 \"r     c #8F8F8F\",
 561 \"s     c #C3BFBF\",
 562 \"t     c #AFACAB\",
 563 \"u     c #CCCCCC\",
 564 \"v     c #D6D6D6\",
 565 \"w     c #DEDEDE\",
 566 \"x     c #E4E4E4\",
 567 \"y     c #E5E5E5\",
 568 \"z     c #E2E2E2\",
 569 \"A     c #DBDBDB\",
 570 \"B     c #C9C8C8\",
 571 \"C     c #A8A9A8\",
 572 \"D     c #9D9E9D\",
 573 \"E     c #929292\",
 574 \"F     c #8A8888\",
 575 \"G     c #D3CECE\",
 576 \"H     c #B0B0B0\",
 577 \"I     c #D1D1D1\",
 578 \"J     c #DCDCDC\",
 579 \"K     c #E6E6E6\",
 580 \"L     c #EEEEEE\",
 581 \"M     c #F1F1F0\",
 582 \"N     c #EBEBEB\",
 583 \"O     c #D7D7D8\",
 584 \"P     c #ABABAB\",
 585 \"Q     c #A0A0A0\",
 586 \"R     c #949494\",
 587 \"S     c #898989\",
 588 \"T     c #C0BDBD\",
 589 \"U     c #B9B6B6\",
 590 \"V     c #B1B1B1\",
 591 \"W     c #BCBCBC\",
 592 \"X     c #C8C8C8\",
 593 \"Y     c #D3D3D3\",
 594 \"Z     c #DFDFDE\",
 595 \"`     c #EAEAEA\",
 596 \" .    c #F5F5F5\",
 597 \"..    c #FAFAFA\",
 598 \"+.    c #F1F1F1\",
 599 \"@.    c #CECFCF\",
 600 \"#.    c #ACACAC\",
 601 \"$.    c #A1A1A1\",
 602 \"%.    c #8A8A8A\",
 603 \"&.    c #9B9999\",
 604 \"*.    c #C7C7C7\",
 605 \"=.    c #DDDDDD\",
 606 \"-.    c #E8E8E8\",
 607 \";.    c #F2F2F2\",
 608 \">.    c #898A89\",
 609 \",.    c #7A7878\",
 610 \"'.    c #AEAEAE\",
 611 \").    c #C4C4C4\",
 612 \"!.    c #CBCBCA\",
 613 \"~.    c #AAAAAA\",
 614 \"{.    c #939393\",
 615 \"].    c #888888\",
 616 \"^.    c #7C7C7C\",
 617 \"/.    c #AAAAAB\",
 618 \"(.    c #BFBFBF\",
 619 \"_.    c #C9C9C9\",
 620 \":.    c #DFDEDF\",
 621 \"<.    c #A6A6A6\",
 622 \"[.    c #9B9B9B\",
 623 \"}.    c #909191\",
 624 \"|.    c #858586\",
 625 \"1.    c #797979\",
 626 \"2.    c #989494\",
 627 \"3.    c #A5A6A5\",
 628 \"4.    c #B9B9B8\",
 629 \"5.    c #C1C1C1\",
 630 \"6.    c #CFCFCE\",
 631 \"7.    c #979797\",
 632 \"8.    c #8D8D8D\",
 633 \"9.    c #828282\",
 634 \"0.    c #747171\",
 635 \"a.    c #ADAAAA\",
 636 \"b.    c #A9A8A9\",
 637 \"c.    c #B8B9B9\",
 638 \"d.    c #A5A5A5\",
 639 \"e.    c #9C9C9C\",
 640 \"f.    c #7E7E7D\",
 641 \"g.    c #929191\",
 642 \"h.    c #C9C4C4\",
 643 \"i.    c #989898\",
 644 \"j.    c #ADADAD\",
 645 \"k.    c #9D9D9D\",
 646 \"l.    c #8C8C8C\",
 647 \"m.    c #787878\",
 648 \"n.    c #B8B6B6\",
 649 \"o.    c #939191\",
 650 \"p.    c #A5A5A6\",
 651 \"q.    c #ABABAA\",
 652 \"r.    c #A8A8A9\",
 653 \"s.    c #A3A3A3\",
 654 \"t.    c #858585\",
 655 \"u.    c #757474\",
 656 \"v.    c #C5C1C1\",
 657 \"w.    c #969696\",
 658 \"x.    c #9B9B9C\",
 659 \"y.    c #A4A4A4\",
 660 \"z.    c #9E9E9E\",
 661 \"A.    c #939394\",
 662 \"B.    c #7D7D7D\",
 663 \"C.    c #747474\",
 664 \"D.    c #B7B5B5\",
 665 \"E.    c #A5A1A1\",
 666 \"F.    c #919191\",
 667 \"G.    c #9A9999\",
 668 \"H.    c #838383\",
 669 \"I.    c #757575\",
 670 \"J.    c #939090\",
 671 \"K.    c #A29E9E\",
 672 \"L.    c #868686\",
 673 \"M.    c #8D8D8C\",
 674 \"N.    c #8E8E8E\",
 675 \"O.    c #8D8D8E\",
 676 \"P.    c #8B8C8C\",
 677 \"Q.    c #848485\",
 678 \"R.    c #7F7F80\",
 679 \"S.    c #7A7A7A\",
 680 \"T.    c #737373\",
 681 \"U.    c #929090\",
 682 \"V.    c #828080\",
 683 \"W.    c #818181\",
 684 \"X.    c #808080\",
 685 \"Y.    c #7E7E7E\",
 686 \"Z.    c #737272\",
 687 \"`.    c #B7B4B4\",
 688 \" +    c #BCBABA\",
 689 \".+    c #959494\",
 690 \"++    c #747172\",
 691 \"@+    c #767676\",
 692 \"#+    c #6F6D6D\",
 693 \"$+    c #8F8E8E\",
 694 \"          . + @ # $ % & * = .           \",
 695 \"        - ; > , ' ) ! ~ { ] ^ /         \",
 696 \"    ( _ > : < [ } | 1 2 3 4 ] 5 6 (     \",
 697 \"    7 ) 1 8 9 0 a b c | : 3 { d e f     \",
 698 \"  g ! h i 0 j k l m n o | 2 ~ p q r s   \",
 699 \". t ' | u v w x y z A n B 1 ! C D E F . \",
 700 \"G H : i I J K L M N z O b | ) P Q R S T \",
 701 \"U V W X Y Z `  ...+.y l @.} ' #.$.e %.&.\",
 702 \"& H W *.n =.-.;. .L x k 0 [ , #.Q e >.,.\",
 703 \"] '.2 ).a k z -.` K w j !.< > ~.d {.].^.\",
 704 \"d /.> (._.I k =.:.J v 0 8 : V <.[.}.|.1.\",
 705 \"2.3.~ 4.5._.6.n Y I u i 1 > P $.7.8.9.0.\",
 706 \"a.d b.V c.(.).*.X i | h ) '.d.e.E ].f.g.\",
 707 \"h.i.$.C ~ > 2 W W : ' ! j.d.k.e l.9.m.n.\",
 708 \". o.i.d p.q.'.H V H j.r.s.k.e 8.t.^.u.. \",
 709 \"  v.r w.x.Q s.d.d.y.] z.5 A.8.t.B.C.D.  \",
 710 \"    E.l.F.e i.G.q 5 7.{.r %.H.^.I.J.    \",
 711 \"    ( K.L.%.M.N.N.O.P.S Q.R.S.T.U.(     \",
 712 \"        @ V.W.H.H.9.X.Y.S.I.Z.`.        \",
 713 \"          .  +.+++@+C.#+$+D..           \"};")
 714
 715 ;; ======================================================================
 716 ;; Functions
 717
 718 (defsubst bubbles--grid-width ()
 719   "Return the grid width for the current game theme."
 720   (car (pcase bubbles-game-theme
 721          (`easy
 722           bubbles--grid-small)
 723          (`medium
 724           bubbles--grid-medium)
 725          (`difficult
 726           bubbles--grid-large)
 727          (`hard
 728           bubbles--grid-huge)
 729          (`user-defined
 730           bubbles-grid-size))))
 731
 732 (defsubst bubbles--grid-height ()
 733   "Return the grid height for the current game theme."
 734   (cdr (pcase bubbles-game-theme
 735          (`easy
 736           bubbles--grid-small)
 737          (`medium
 738           bubbles--grid-medium)
 739          (`difficult
 740           bubbles--grid-large)
 741          (`hard
 742           bubbles--grid-huge)
 743          (`user-defined
 744           bubbles-grid-size))))
 745
 746 (defsubst bubbles--colors ()
 747   "Return the color list for the current game theme."
 748   (pcase bubbles-game-theme
 749     (`easy
 750      bubbles--colors-2)
 751     (`medium
 752      bubbles--colors-3)
 753     (`difficult
 754      bubbles--colors-4)
 755     (`hard
 756      bubbles--colors-5)
 757     (`user-defined
 758      bubbles-colors)))
 759
 760 (defsubst bubbles--shift-mode ()
 761   "Return the shift mode for the current game theme."
 762   (pcase bubbles-game-theme
 763     (`easy
 764      'default)
 765     (`medium
 766      'default)
 767     (`difficult
 768      'always)
 769     (`hard
 770      'always)
 771     (`user-defined
 772      bubbles-shift-mode)))
 773
 774 (defun bubbles-save-settings ()
 775   "Save current customization settings."
 776   (interactive)
 777   (custom-set-variables
 778    (list 'bubbles-game-theme `(quote ,bubbles-game-theme) t)
 779    (list 'bubbles-graphics-theme `(quote ,bubbles-graphics-theme) t))
 780   (customize-save-customized))
 781
 782 (defsubst bubbles--empty-char ()
 783   "The character used for removed bubbles (empty grid cells)."
 784   ?\s)
 785
 786 (defun bubbles-set-graphics-theme-ascii ()
 787   "Set graphics theme to `ascii'."
 788   (interactive)
 789   (setq bubbles-graphics-theme 'ascii)
 790   (bubbles--update-faces-or-images))
 791
 792 (defun bubbles-set-graphics-theme-circles ()
 793   "Set graphics theme to `circles'."
 794   (interactive)
 795   (setq bubbles-graphics-theme 'circles)
 796   (bubbles--initialize-images)
 797   (bubbles--update-faces-or-images))
 798
 799 (defun bubbles-set-graphics-theme-squares ()
 800   "Set graphics theme to `squares'."
 801   (interactive)
 802   (setq bubbles-graphics-theme 'squares)
 803   (bubbles--initialize-images)
 804   (bubbles--update-faces-or-images))
 805
 806 (defun bubbles-set-graphics-theme-diamonds ()
 807   "Set graphics theme to `diamonds'."
 808   (interactive)
 809   (setq bubbles-graphics-theme 'diamonds)
 810   (bubbles--initialize-images)
 811   (bubbles--update-faces-or-images))
 812
 813 (defun bubbles-set-graphics-theme-balls ()
 814   "Set graphics theme to `balls'."
 815   (interactive)
 816   (setq bubbles-graphics-theme 'balls)
 817   (bubbles--initialize-images)
 818   (bubbles--update-faces-or-images))
 819
 820 (defun bubbles-set-graphics-theme-emacs ()
 821   "Set graphics theme to `emacs'."
 822   (interactive)
 823   (setq bubbles-graphics-theme 'emacs)
 824   (bubbles--initialize-images)
 825   (bubbles--update-faces-or-images))
 826
 827 ;; game theme menu
 828 (defvar bubbles-game-theme-menu
 829   (let ((menu (make-sparse-keymap "Game Theme")))
 830     (define-key menu [bubbles-set-game-userdefined]
 831       (list 'menu-item "User defined" 'bubbles-set-game-userdefined
 832             :button '(:radio . (eq bubbles-game-theme 'user-defined))))
 833     (define-key menu [bubbles-set-game-hard]
 834       (list 'menu-item "Hard" 'bubbles-set-game-hard
 835             :button '(:radio . (eq bubbles-game-theme 'hard))))
 836     (define-key menu [bubbles-set-game-difficult]
 837       (list 'menu-item "Difficult" 'bubbles-set-game-difficult
 838             :button '(:radio . (eq bubbles-game-theme 'difficult))))
 839     (define-key menu [bubbles-set-game-medium]
 840       (list 'menu-item "Medium" 'bubbles-set-game-medium
 841             :button '(:radio . (eq bubbles-game-theme 'medium))))
 842     (define-key menu [bubbles-set-game-easy]
 843       (list 'menu-item "Easy" 'bubbles-set-game-easy
 844             :button '(:radio . (eq bubbles-game-theme 'easy))))
 845     menu)
 846   "Map for bubbles game theme menu.")
 847
 848 ;; graphics theme menu
 849 (defvar bubbles-graphics-theme-menu
 850   (let ((menu (make-sparse-keymap "Graphics Theme")))
 851     (define-key menu [bubbles-set-graphics-theme-ascii]
 852       (list 'menu-item "ASCII" 'bubbles-set-graphics-theme-ascii
 853             :button '(:radio . (eq bubbles-graphics-theme 'ascii))))
 854     (define-key menu [bubbles-set-graphics-theme-emacs]
 855       (list 'menu-item "Emacs" 'bubbles-set-graphics-theme-emacs
 856             :button '(:radio . (eq bubbles-graphics-theme 'emacs))))
 857     (define-key menu [bubbles-set-graphics-theme-balls]
 858       (list 'menu-item "Balls" 'bubbles-set-graphics-theme-balls
 859             :button '(:radio . (eq bubbles-graphics-theme 'balls))))
 860     (define-key menu [bubbles-set-graphics-theme-diamonds]
 861       (list 'menu-item "Diamonds" 'bubbles-set-graphics-theme-diamonds
 862             :button '(:radio . (eq bubbles-graphics-theme 'diamonds))))
 863     (define-key menu [bubbles-set-graphics-theme-squares]
 864       (list 'menu-item "Squares" 'bubbles-set-graphics-theme-squares
 865             :button '(:radio . (eq bubbles-graphics-theme 'squares))))
 866     (define-key menu [bubbles-set-graphics-theme-circles]
 867       (list 'menu-item "Circles" 'bubbles-set-graphics-theme-circles
 868             :button '(:radio . (eq bubbles-graphics-theme 'circles))))
 869     menu)
 870     "Map for bubbles graphics theme menu.")
 871
 872 ;; menu
 873 (defvar bubbles-menu
 874   (let ((menu (make-sparse-keymap "Bubbles")))
 875     (define-key menu [bubbles-quit]
 876       (list 'menu-item "Quit" 'bubbles-quit))
 877     (define-key menu [bubbles]
 878       (list 'menu-item "New game" 'bubbles))
 879     (define-key menu [bubbles-separator-1]
 880       '("--"))
 881     (define-key menu [bubbles-save-settings]
 882       (list 'menu-item "Save all settings" 'bubbles-save-settings))
 883     (define-key menu [bubbles-customize]
 884       (list 'menu-item "Edit all settings" 'bubbles-customize))
 885     (define-key menu [bubbles-game-theme-menu]
 886       (list 'menu-item "Game Theme" bubbles-game-theme-menu))
 887     (define-key menu [bubbles-graphics-theme-menu]
 888       (list 'menu-item "Graphics Theme" bubbles-graphics-theme-menu
 889             :enable 'bubbles--playing))
 890     (define-key menu [bubbles-separator-2]
 891       '("--"))
 892     (define-key menu [bubbles-undo]
 893       (list 'menu-item "Undo last move" 'bubbles-undo
 894             :enable '(and bubbles--playing (listp buffer-undo-list))))
 895     menu)
 896   "Map for bubbles menu.")
 897
 898 ;; bubbles mode map
 899 (defvar bubbles-mode-map
 900   (let ((map (make-sparse-keymap 'bubbles-mode-map)))
 901 ;;    (suppress-keymap map t)
 902     (define-key map "q" 'bubbles-quit)
 903     (define-key map "\n" 'bubbles-plop)
 904     (define-key map " " 'bubbles-plop)
 905     (define-key map [double-down-mouse-1] 'bubbles-plop)
 906     (define-key map [mouse-2] 'bubbles-plop)
 907     (define-key map "\C-m" 'bubbles-plop)
 908     (define-key map "u" 'bubbles-undo)
 909     (define-key map "p" 'previous-line)
 910     (define-key map "n" 'next-line)
 911     (define-key map "f" 'forward-char)
 912     (define-key map "b" 'backward-char)
 913     ;; bind menu to mouse
 914     (define-key map [down-mouse-3] bubbles-menu)
 915     ;; Put menu in menu-bar
 916     (define-key map [menu-bar Bubbles] (cons "Bubbles" bubbles-menu))
 917     map)
 918   "Mode map for bubbles.")
 919
 920 (define-derived-mode bubbles-mode nil "Bubbles"
 921   "Major mode for playing bubbles.
 922 \\{bubbles-mode-map}"
 923   (setq buffer-read-only t
 924         show-trailing-whitespace nil)
 925   (buffer-disable-undo)
 926   (force-mode-line-update)
 927   (redisplay)
 928   (add-hook 'post-command-hook 'bubbles--mark-neighborhood t t))
 929
 930 ;;;###autoload
 931 (defun bubbles ()
 932   "Play Bubbles game.
 933 \\<bubbles-mode-map>
 934 The goal is to remove all bubbles with as few moves as possible.
 935 \\[bubbles-plop] on a bubble removes that bubble and all
 936 connected bubbles of the same color.  Unsupported bubbles fall
 937 down, and columns that do not contain any bubbles suck the
 938 columns on its right towards the left.
 939
 940 \\[bubbles-set-game-easy] sets the difficulty to easy.
 941 \\[bubbles-set-game-medium] sets the difficulty to medium.
 942 \\[bubbles-set-game-difficult] sets the difficulty to difficult.
 943 \\[bubbles-set-game-hard] sets the difficulty to hard."
 944   (interactive)
 945   (switch-to-buffer (get-buffer-create "*bubbles*"))
 946   (when (or (not bubbles--playing)
 947             (y-or-n-p "Start new game? "))
 948     (setq bubbles--save-data nil)
 949     (setq bubbles--playing t)
 950     (bubbles--initialize)))
 951
 952 (defun bubbles-quit ()
 953   "Quit Bubbles."
 954   (interactive)
 955   (message "bubbles-quit")
 956   (bury-buffer))
 957
 958 (declare-function image-size "image.c" (spec &optional pixels frame))
 959
 960 (defun bubbles--compute-offsets ()
 961   "Update horizontal and vertical offsets for centering the bubbles grid.
 962 Set `bubbles--col-offset' and `bubbles--row-offset'."
 963   (cond ((and (display-images-p)
 964               bubbles--images-ok
 965               (not (eq bubbles-graphics-theme 'ascii))
 966               (fboundp 'window-inside-pixel-edges))
 967          ;; compute offset in units of pixels
 968          (let ((bubbles--image-size
 969                 (car (image-size (car bubbles--images) t))))
 970            (setq bubbles--col-offset
 971                  (list
 972                   (max 0 (/ (- (nth 2 (window-inside-pixel-edges))
 973                                (nth 0 (window-inside-pixel-edges))
 974                                (* ( + bubbles--image-size 2) ;; margin
 975                                   (bubbles--grid-width))) 2))))
 976            (setq bubbles--row-offset
 977                  (list
 978                   (max 0 (/ (- (nth 3 (window-inside-pixel-edges))
 979                                (nth 1 (window-inside-pixel-edges))
 980                                (* (+ bubbles--image-size 1) ;; margin
 981                                   (bubbles--grid-height))) 2))))))
 982         (t
 983          ;; compute offset in units of chars
 984          (setq bubbles--col-offset
 985                (max 0 (/ (- (window-width)
 986                             (bubbles--grid-width)) 2)))
 987          (setq bubbles--row-offset
 988                (max 0 (/ (- (window-height)
 989                             (bubbles--grid-height) 2) 2))))))
 990
 991 (defun bubbles--remove-overlays ()
 992   "Remove all overlays."
 993   (if (fboundp 'remove-overlays)
 994       (remove-overlays)))
 995
 996 (defun bubbles--initialize ()
 997   "Initialize Bubbles game."
 998   (bubbles--initialize-faces)
 999   (bubbles--initialize-images)
1000   (bubbles--remove-overlays)
1001
1002   (switch-to-buffer (get-buffer-create "*bubbles*"))
1003   (bubbles--compute-offsets)
1004   (let ((inhibit-read-only t))
1005     (set-buffer-modified-p nil)
1006     (erase-buffer)
1007     (insert " ")
1008     (put-text-property (point-min) (point)
1009                        'display
1010                        (cons 'space (list :height bubbles--row-offset)))
1011     (insert "\n")
1012     (let ((max-char (length (bubbles--colors))))
1013       (dotimes (i (bubbles--grid-height))
1014         (let ((p (point)))
1015           (insert " ")
1016           (put-text-property p (point)
1017                              'display
1018                              (cons 'space (list :width bubbles--col-offset))))
1019         (dotimes (j (bubbles--grid-width))
1020           (let* ((index (random max-char))
1021                  (char (nth index bubbles-chars)))
1022             (insert char)
1023             (add-text-properties (1- (point)) (point) (list 'index index))))
1024         (insert "\n"))
1025       (insert "\n ")
1026       (put-text-property (1- (point)) (point)
1027                          'display
1028                          (cons 'space (list :width bubbles--col-offset))))
1029     (put-text-property (point-min) (point-max) 'pointer 'arrow))
1030   (bubbles-mode)
1031   (bubbles--reset-score)
1032   (bubbles--update-faces-or-images)
1033   (bubbles--goto 0 0)
1034   (setq buffer-undo-list t)
1035   (force-mode-line-update)
1036   (redisplay))
1037
1038 (defun bubbles--initialize-faces ()
1039   "Prepare faces for playing `bubbles'."
1040   (copy-face 'default 'bubbles--highlight-face)
1041   (set-face-background 'bubbles--highlight-face "#8080f4")
1042   (when (display-color-p)
1043     (setq bubbles--faces
1044           (mapcar (lambda (color)
1045                     (let ((fname (intern (format "bubbles--face-%s" color))))
1046                       (unless (facep fname)
1047                         (copy-face 'default fname)
1048                         (set-face-foreground fname color))
1049                       fname))
1050                   (bubbles--colors)))))
1051
1052 (defsubst bubbles--row (pos)
1053   "Return row of point POS."
1054   (save-excursion
1055     (goto-char pos)
1056     (beginning-of-line)
1057     (1- (count-lines (point-min) (point)))))
1058
1059 (defsubst bubbles--col (pos)
1060   "Return column of point POS."
1061   (save-excursion
1062     (goto-char pos)
1063     (1- (current-column))))
1064
1065 (defun bubbles--goto (row col)
1066   "Move point to bubble at coordinates ROW and COL."
1067   (if (or (< row 0)
1068           (< col 0)
1069           (>= row (bubbles--grid-height))
1070           (>= col (bubbles--grid-width)))
1071       ;; Error! return nil
1072       nil
1073     ;; go
1074     (goto-char (point-min))
1075     (forward-line (1+ row))
1076     (forward-char (1+ col))
1077     (point)))
1078
1079 (defun bubbles--char-at (row col)
1080   "Return character at bubble ROW and COL."
1081   (save-excursion
1082     (if (bubbles--goto row col)
1083         (char-after (point))
1084       nil)))
1085
1086 (defun bubbles--mark-direct-neighbors (row col char)
1087   "Mark direct neighbors of bubble at ROW COL with same CHAR."
1088   (save-excursion
1089     (let ((count 0))
1090       (when (and (bubbles--goto row col)
1091                  (eq char (char-after (point)))
1092                  (not (get-text-property (point) 'active)))
1093         (add-text-properties (point) (1+ (point))
1094                              '(active t face 'bubbles--highlight-face))
1095         (setq count (+ 1
1096                        (bubbles--mark-direct-neighbors row (1+ col) char)
1097                        (bubbles--mark-direct-neighbors row (1- col) char)
1098                        (bubbles--mark-direct-neighbors (1+ row) col char)
1099                        (bubbles--mark-direct-neighbors (1- row) col char))))
1100       count)))
1101
1102 (defun bubbles--mark-neighborhood (&optional pos)
1103   "Mark neighborhood of point.
1104 Use optional parameter POS instead of point if given."
1105   (when bubbles--playing
1106     (unless pos (setq pos (point)))
1107     (with-demoted-errors "Bubbles: Internal error %s"
1108       (let ((char (char-after pos))
1109             (inhibit-read-only t)
1110             (row (bubbles--row (point)))
1111             (col (bubbles--col (point))))
1112         (add-text-properties (point-min) (point-max)
1113                              '(face default active nil))
1114         (let ((count 0))
1115           (when (and row col (not (eq char (bubbles--empty-char))))
1116             (setq count (bubbles--mark-direct-neighbors row col char))
1117             (unless (> count 1)
1118               (add-text-properties (point-min) (point-max)
1119                                    '(face default active nil))
1120               (setq count 0)))
1121           (bubbles--update-neighborhood-score count))
1122         (put-text-property (point-min) (point-max) 'pointer 'arrow)
1123         (bubbles--update-faces-or-images)
1124         (sit-for 0)))))
1125
1126 (defun bubbles--neighborhood-available ()
1127   "Return t if another valid neighborhood is available."
1128   (catch 'found
1129     (save-excursion
1130       (dotimes (i (bubbles--grid-height))
1131         (dotimes (j (bubbles--grid-width))
1132           (let ((c (bubbles--char-at i j)))
1133             (if (and (not (eq c (bubbles--empty-char)))
1134                      (or (eq c (bubbles--char-at (1+ i) j))
1135                          (eq c (bubbles--char-at i (1+ j)))))
1136                 (throw 'found t)))))
1137       nil)))
1138
1139 (defun bubbles--count ()
1140   "Count remaining bubbles."
1141   (let ((count 0))
1142     (save-excursion
1143       (dotimes (i (bubbles--grid-height))
1144         (dotimes (j (bubbles--grid-width))
1145           (let ((c (bubbles--char-at i j)))
1146             (if (not (eq c (bubbles--empty-char)))
1147                 (setq count (1+ count)))))))
1148     count))
1149
1150 (defun bubbles--reset-score ()
1151   "Reset bubbles score."
1152   (setq bubbles--neighborhood-score 0
1153         bubbles--score 0)
1154   (bubbles--update-score))
1155
1156 (defun bubbles--update-score ()
1157   "Calculate and display new bubbles score."
1158   (setq bubbles--score (+ bubbles--score bubbles--neighborhood-score))
1159   (bubbles--show-scores))
1160
1161 (defun bubbles--update-neighborhood-score (size)
1162   "Calculate and display score of active neighborhood from its SIZE."
1163   (if (> size 1)
1164       (setq bubbles--neighborhood-score (expt (- size 1) 2))
1165     (setq bubbles--neighborhood-score 0))
1166   (bubbles--show-scores))
1167
1168 (defun bubbles--show-scores ()
1169   "Display current scores."
1170   (save-excursion
1171     (goto-char (or (next-single-property-change (point-min) 'status)
1172                    (point-max)))
1173     (let ((inhibit-read-only t)
1174           (pos (point)))
1175       (delete-region (point) (point-max))
1176       (insert (format "Selected: %4d\n" bubbles--neighborhood-score))
1177       (insert " ")
1178       (put-text-property (1- (point)) (point)
1179                          'display
1180                          (cons 'space (list :width bubbles--col-offset)))
1181       (insert (format "Score:    %4d" bubbles--score))
1182       (put-text-property pos (point) 'status t))))
1183
1184 (defun bubbles--game-over ()
1185   "Finish bubbles game."
1186   (bubbles--update-faces-or-images)
1187   (setq bubbles--playing nil
1188         bubbles--save-data nil)
1189   ;; add bonus if all bubbles were removed
1190   (when (= 0 (bubbles--count))
1191     (setq bubbles--score (+ bubbles--score (* (bubbles--grid-height)
1192                                               (bubbles--grid-width))))
1193     (bubbles--show-scores))
1194   ;; Game over message
1195   (goto-char (point-max))
1196   (let* ((inhibit-read-only t))
1197     (insert "\n ")
1198     (put-text-property (1- (point)) (point)
1199                        'display
1200                        (cons 'space (list :width bubbles--col-offset)))
1201     (insert "Game Over!"))
1202   ;; save score
1203   (gamegrid-add-score (format "bubbles-%s-%d-%d-%d-scores"
1204                               (symbol-name (bubbles--shift-mode))
1205                               (length (bubbles--colors))
1206                               (bubbles--grid-width) (bubbles--grid-height))
1207                       bubbles--score))
1208
1209 (defun bubbles-plop ()
1210   "Remove active bubbles region."
1211   (interactive)
1212   (when (and bubbles--playing
1213              (> bubbles--neighborhood-score 0))
1214     (setq bubbles--save-data (list bubbles--score (buffer-string)))
1215     (let ((inhibit-read-only t))
1216       ;; blank out current neighborhood
1217       (let ((row (bubbles--row (point)))
1218             (col (bubbles--col (point))))
1219         (goto-char (point-max))
1220         (while (not (bobp))
1221           (backward-char)
1222           (while (get-text-property (point) 'active)
1223             (delete-char 1)
1224             (insert (bubbles--empty-char))
1225             (add-text-properties (1- (point)) (point) (list 'removed t
1226                                                             'index -1))))
1227         (bubbles--goto row col))
1228       ;; show new score
1229       (bubbles--update-score)
1230       ;; update display and wait
1231       (bubbles--update-faces-or-images)
1232       (sit-for 0)
1233       (sleep-for 0.2)
1234       (discard-input)
1235       ;; drop down
1236       (let ((something-dropped nil))
1237         (save-excursion
1238           (dotimes (i (bubbles--grid-height))
1239             (dotimes (j (bubbles--grid-width))
1240               (bubbles--goto i j)
1241               (while (get-text-property (point) 'removed)
1242                 (setq something-dropped (or (bubbles--shift 'top i j)
1243                                             something-dropped))))))
1244         ;; update display and wait
1245         (bubbles--update-faces-or-images)
1246         (when something-dropped
1247           (sit-for 0)))
1248       (discard-input)
1249       ;; shift to left
1250       (put-text-property (point-min) (point-max) 'removed nil)
1251       (save-excursion
1252         (goto-char (point-min))
1253         (let ((removed-string (format "%c" (bubbles--empty-char))))
1254           (while (search-forward removed-string nil t)
1255             (put-text-property (1- (point)) (point) 'removed t))))
1256       (let ((shifted nil))
1257         (cond ((eq (bubbles--shift-mode) 'always)
1258                (save-excursion
1259                  (dotimes (i (bubbles--grid-height))
1260                    (dotimes (j (bubbles--grid-width))
1261                      (bubbles--goto i j)
1262                      (while (get-text-property (point) 'removed)
1263                        (setq shifted (or (bubbles--shift 'right i j)
1264                                          shifted))))))
1265                (bubbles--update-faces-or-images)
1266                (sleep-for 0.5))
1267               (t ;; default shift-mode
1268                (save-excursion
1269                  (dotimes (j (bubbles--grid-width))
1270                    (bubbles--goto (1- (bubbles--grid-height)) j)
1271                    (let ((shifted-cols 0))
1272                      (while (get-text-property (point) 'removed)
1273                        (setq shifted-cols (1+ shifted-cols))
1274                        (bubbles--shift 'right (1- (bubbles--grid-height)) j))
1275                      (dotimes (k shifted-cols)
1276                        (let ((i (- (bubbles--grid-height) 2)))
1277                          (while (>= i 0)
1278                            (setq shifted (or (bubbles--shift 'right i j)
1279                                              shifted))
1280                            (setq i (1- i))))))))))
1281         (when shifted
1282           ;;(sleep-for 0.5)
1283           (bubbles--update-faces-or-images)
1284           (sit-for 0)))
1285       (put-text-property (point-min) (point-max) 'removed nil)
1286       (unless (bubbles--neighborhood-available)
1287         (bubbles--game-over)))
1288     ;; undo
1289     (setq buffer-undo-list '((apply bubbles-undo . nil)))
1290     (force-mode-line-update)
1291     (redisplay)))
1292
1293 (defun bubbles-undo ()
1294   "Undo last move."
1295   (interactive)
1296   (when bubbles--save-data
1297     (let ((inhibit-read-only t)
1298           (pos (point)))
1299       (erase-buffer)
1300       (insert (cadr bubbles--save-data))
1301       (bubbles--update-faces-or-images)
1302       (setq bubbles--score (car bubbles--save-data))
1303       (goto-char pos))
1304     (setq buffer-undo-list t)
1305     (force-mode-line-update)
1306     (redisplay)))
1307
1308 (defun bubbles--shift (from row col)
1309   "Move bubbles FROM one side to position ROW COL.
1310 Return t if new char is non-empty."
1311   (save-excursion
1312     (when (bubbles--goto row col)
1313       (let ((char-new (bubbles--empty-char))
1314             (removed nil)
1315             (trow row)
1316             (tcol col)
1317             (index -1))
1318         (cond ((eq from 'top)
1319                (setq trow (1- row)))
1320               ((eq from 'left)
1321                (setq tcol (1- col)))
1322               ((eq from 'right)
1323                (setq tcol (1+ col))))
1324         (save-excursion
1325           (when (bubbles--goto trow tcol)
1326             (setq char-new (char-after (point)))
1327             (setq removed (get-text-property (point) 'removed))
1328             (setq index (get-text-property (point) 'index))
1329             (bubbles--shift from trow tcol)))
1330         (insert char-new)
1331         (delete-char 1)
1332         (add-text-properties (1- (point)) (point) (list 'index index
1333                                                         'removed removed))
1334         (not (eq char-new (bubbles--empty-char)))))))
1335
1336 (defun bubbles--initialize-images ()
1337   "Prepare images for playing `bubbles'."
1338   (when (and (display-images-p)
1339              (not (eq bubbles-graphics-theme 'ascii)))
1340     (let ((template (pcase bubbles-graphics-theme
1341                       (`circles bubbles--image-template-circle)
1342                       (`balls bubbles--image-template-ball)
1343                       (`squares bubbles--image-template-square)
1344                       (`diamonds bubbles--image-template-diamond)
1345                       (`emacs bubbles--image-template-emacs))))
1346       (setq bubbles--empty-image
1347             (create-image (replace-regexp-in-string
1348                            "^\"\\(.*\\)\t.*c .*\",$"
1349                            "\"\\1\tc None\"," template)
1350                           'xpm t
1351                           ;;:mask 'heuristic
1352                           :margin '(2 . 1)))
1353       (setq bubbles--images
1354             (mapcar (lambda (color)
1355                       (let* ((rgb (color-values color))
1356                              (red (nth 0 rgb))
1357                              (green (nth 1 rgb))
1358                              (blue (nth 2 rgb)))
1359                         (with-temp-buffer
1360                           (insert template)
1361                           (goto-char (point-min))
1362                           (re-search-forward
1363                            "^\"[0-9]+ [0-9]+ \\(.*?\\) .*\",$" nil t)
1364                           (goto-char (point-min))
1365                           (while (re-search-forward
1366                                   "^\"\\(.*\\)\t.*c \\(#.*\\)\",$" nil t)
1367                             (let* ((crgb (color-values (match-string 2)))
1368                                    (r (nth 0 crgb))
1369                                    (g (nth 1 crgb))
1370                                    (b (nth 2 crgb))
1371                                    (brightness (/ (+ r g b) 3.0 256 256))
1372                                    (val (sin (* brightness (/ float-pi 2))))
1373                                    (rr (* red val))
1374                                    (gg (* green val))
1375                                    (bb (* blue val))
1376                                    ;;(rr (/ (+ red r) 2))
1377                                    ;;(gg (/ (+ green g) 2))
1378                                    ;;(bb (/ (+ blue b) 2))
1379                                    (color (format "#%02x%02x%02x"
1380                                                   (/ rr 256) (/ gg 256)
1381                                                   (/ bb 256))))
1382                               (replace-match (format "\"\\1\tc %s\","
1383                                                      (upcase color)))))
1384                           (create-image (buffer-string) 'xpm t
1385                                         :margin '(2 . 1)
1386                                         ;;:mask 'heuristic
1387                                         ))))
1388                     (bubbles--colors))))
1389     ;; check images
1390     (setq bubbles--images-ok bubbles--empty-image)
1391     (mapc (lambda (elt)
1392             (setq bubbles--images-ok (and bubbles--images-ok elt)))
1393           bubbles--images)))
1394
1395 (defun bubbles--update-faces-or-images ()
1396   "Update faces and/or images, depending on graphics mode."
1397   (bubbles--set-faces)
1398   (bubbles--show-images))
1399
1400 (defun bubbles--set-faces ()
1401   "Update faces in the bubbles buffer."
1402   (unless (and (display-images-p)
1403                bubbles--images-ok
1404                (not (eq bubbles-graphics-theme 'ascii)))
1405     (when (display-color-p)
1406       (save-excursion
1407         (let ((inhibit-read-only t))
1408           (dotimes (i (bubbles--grid-height))
1409             (dotimes (j (bubbles--grid-width))
1410               (bubbles--goto i j)
1411               (let ((face (nth (get-text-property (point) 'index)
1412                                bubbles--faces)))
1413                 (when (get-text-property (point) 'active)
1414                   (set-face-foreground 'bubbles--highlight-face "#ff0000")
1415                   (setq face 'bubbles--highlight-face))
1416                 (put-text-property (point) (1+ (point))
1417                                    'face face)))))))))
1418
1419 (defun bubbles--show-images ()
1420   "Update images in the bubbles buffer."
1421   (bubbles--remove-overlays)
1422   (if (and (display-images-p)
1423            bubbles--images-ok
1424            (not (eq bubbles-graphics-theme 'ascii)))
1425       (save-excursion
1426         (goto-char (point-min))
1427         (forward-line 1)
1428         (let ((inhibit-read-only t))
1429           (dotimes (i (bubbles--grid-height))
1430             (dotimes (j (bubbles--grid-width))
1431               (forward-char 1)
1432               (let ((index (or (get-text-property (point) 'index) -1)))
1433                 (let ((img bubbles--empty-image))
1434                   (if (>= index 0)
1435                       (setq img (nth index bubbles--images)))
1436                   (put-text-property (point) (1+ (point))
1437                                      'display (cons img nil)))))
1438             (forward-line 1))))
1439     (save-excursion
1440       (let ((inhibit-read-only t))
1441         (goto-char (point-min))
1442         (while (not (eobp))
1443           (let ((disp-prop (get-text-property (point) 'display)))
1444             (if (and (listp disp-prop)
1445                      (listp (car disp-prop))
1446                      (eq (caar disp-prop) 'image))
1447                 (put-text-property (point) (1+ (point)) 'display nil))
1448             (forward-char 1)))
1449         (put-text-property (point-min) (point-max) 'pointer 'arrow)))))
1450
1451 (provide 'bubbles)
1452
1453 ;;; bubbles.el ends here