main.coffee

   1 #   HexBog, a word game
   2 #   Copyright (C) 2012 Jason Woofenden
   3
   4 #   This program is free software: you can redistribute it and/or modify
   5 #   it under the terms of the GNU Affero General Public License as published by
   6 #   the Free Software Foundation, either version 3 of the License, or
   7 #   (at your option) any later version.
   8
   9 #   This program is distributed in the hope that it will be useful,
  10 #   but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 #   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 #   GNU Affero General Public License for more details.
  13
  14 #   You should have received a copy of the GNU Affero General Public License
  15 #   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16
  17 ##############################################
  18 ##############    settings    ################
  19 ##############################################
  20
  21 tile_radius = 26
  22 tile_width = tile_radius * 2
  23
  24 fade_ms = 400
  25 slide_ms = 2000
  26
  27 columns = [
  28         { height: 5, spaces: [], fader_count: 0 }
  29         { height: 6, spaces: [], fader_count: 0 }
  30         { height: 7, spaces: [], fader_count: 0 }
  31         { height: 8, spaces: [], fader_count: 0 }
  32         { height: 7, spaces: [], fader_count: 0 }
  33         { height: 6, spaces: [], fader_count: 0 }
  34         { height: 5, spaces: [], fader_count: 0 }
  35 ]
  36
  37 # code and css will need adjusting if you change HP_MAX
  38 HP_MAX = 10
  39
  40 ##############################################################
  41 ##############    fix javascript some more    ################
  42 ##############################################################
  43
  44 # so annoying that setTimeout has its arguments in the wrong order
  45 timeout = (ms, callback) ->
  46         setTimeout callback, ms
  47
  48 # warning: it's shalow (sub-elements are not cloned)
  49 Array::clone = ->
  50         return this.slice(0)
  51
  52 Array::sum = ->
  53         ret = 0
  54         ret += i for i in this
  55         return ret
  56
  57 Array::last = ->
  58         return this[this.length - 1]
  59
  60
  61 ##############################################################
  62 ##############    cookies (auto-save game)    ################
  63 ##############################################################
  64
  65 set_cookie = (name, value, days) ->
  66         date = new Date()
  67         date.setTime date.getTime()+(days*24*60*60*1000)
  68         cookie = "#{name}=#{value}; expires=#{date.toGMTString()}; path=/"
  69         document.cookie = cookie
  70 window.sc = set_cookie
  71
  72 get_cookie = (name) ->
  73         key = name + '='
  74         for c in document.cookie.split /; */
  75                 if c.indexOf key is 0
  76                         return c.substr key.length
  77         return null
  78
  79 delete_cookie = (name) ->
  80         set_cookie name, '', -1
  81 window.dc = delete_cookie
  82
  83
  84 num_spaces = 0
  85 num_spaces += column.height for column in columns
  86 score = 0
  87 spaces = new Array(num_spaces)
  88
  89 selected = []
  90
  91 letters = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
  92 letter_distribution = [
  93         14355 # a
  94          3968 # b
  95          6325 # c
  96          7045 # d
  97         20258 # e
  98          2739 # f
  99          5047 # g
 100          4372 # h
 101         13053 # i
 102           516 # j
 103          2600 # k
 104          9631 # l
 105          5115 # m
 106         10082 # n
 107         11142 # o
 108          5292 # p
 109           287 # qu
 110         12341 # r
 111         16571 # s
 112         10215 # t
 113          6131 # u
 114          1728 # v
 115          2184 # w
 116           619 # x
 117          3512 # y
 118           831 # z
 119
 120 ]
 121
 122 letter_distribution_total = 175973 # letter_distribution.sum()
 123
 124
 125 new_letter_queue = []
 126 new_letter = ->
 127         if new_letter_queue.length
 128                 l = new_letter_queue.shift()
 129                 l.letter = l.letter.toUpperCase()
 130                 if l.letter is 'Q'
 131                         l.letter = 'Qu'
 132                 return l
 133         hp = 1 + Math.floor(Math.random() * (HP_MAX - 1))
 134         r = Math.floor Math.random() * (letter_distribution_total + 1)
 135         for i in [0..25]
 136                 r -= letter_distribution[i]
 137                 if r <= 0
 138                         if letters[i] is 'Q'
 139                                 return letter: 'Qu', hp: hp
 140                         return letter: letters[i], hp: hp
 141         return letter: 'Z', hp: hp # just in case
 142
 143
 144
 145 # in memory it's layed out like this:
 146 # a c f j m
 147 # b d g k n
 148 #   e h l
 149 #     i
 150 # for display, columns are slid vertically like so:
 151 #       f
 152 #     c   j
 153 #   a   g   m
 154 #     d   k
 155 #   b   h   n
 156 #     e   l
 157 #       i
 158 #
 159 # work out which grid spaces are connected
 160 init_board_layout = () ->
 161         col_offset = 0
 162         middle_col_num = (columns.length - 1) / 2
 163
 164         space_num = 0
 165
 166         for column, col_num in columns
 167                 if col_num < middle_col_num
 168                         fw_other = 1
 169                 else
 170                         fw_other = -1
 171
 172                 if col_num > middle_col_num
 173                         bw_other = 1
 174                 else
 175                         bw_other = -1
 176
 177                 is_first_col = col_num is 0
 178                 is_last_col = col_num is columns.length - 1
 179
 180                 neighbors = []
 181                 # neighbors are integers for now, but get dereferenced later, after we've created all the spaces
 182                 push = (offset) ->
 183                         neighbors.push col_offset + offset
 184
 185                 col_top_px = Math.abs col_num - middle_col_num
 186                 col_top_px *= tile_radius
 187
 188                 above = []
 189                 for i in [0 ... column.height]
 190                         space = { id: space_num }
 191                         spaces[space_num] = space
 192                         space_num += 1
 193                         column.spaces.push space
 194                         space.column = column
 195
 196                         is_top_tile = i is 0
 197                         is_bottom_tile = i is column.height - 1
 198
 199                         # link tile number to pixel "top" and "left" of containing column
 200                         space.top_px = col_top_px + i * tile_width
 201                         space.left_px = col_num * tile_width
 202
 203                         # aboves: array of spaces, top to bottom
 204                         space.aboves = above.clone()
 205                         above.push space
 206
 207                         # below: SINGLE tile below
 208                         unless is_top_tile
 209                                 spaces[space.id - 1].below = space
 210
 211                         # neighbors (array of tile numbers "next to" this one)
 212                         neighbors = []
 213                         unless is_top_tile # upward link
 214                                 push i - 1
 215                         unless is_bottom_tile # downward links
 216                                 push i + 1
 217                         unless is_first_col # leftward links
 218                                 unless is_bottom_tile and bw_other is -1
 219                                         push i - columns[col_num - 1].height
 220                                 unless is_top_tile and bw_other is -1
 221                                         push i - columns[col_num - 1].height + bw_other
 222                         unless is_last_col # rightward links
 223                                 unless is_bottom_tile and fw_other is -1
 224                                         push i + columns[col_num].height
 225                                 unless is_top_tile and fw_other is -1
 226                                         push i + columns[col_num].height + fw_other
 227                         # will be dereferenced later
 228                         space.neighbors = neighbors
 229                 col_offset += column.height
 230         # convert all space.neighbors arrays from containing space ids to referencing the space
 231         for s in spaces
 232                 for id, key in s.neighbors
 233                         s.neighbors[key] = spaces[id]
 234
 235 # support obsolete save data format
 236 load_game_0 = (encoded) ->
 237         letters = (encoded.substr 0, num_spaces).split ''
 238         for l in letters
 239                 new_letter_queue.push {
 240                         letter: l,
 241                         hp: 1 + Math.floor(Math.random() * (HP_MAX - 1))
 242                 }
 243         score = parseInt(encoded.substr(num_spaces), 10)
 244
 245 load_game_1 = (encoded) ->
 246         int = 0
 247         encoded = encoded.substr 1
 248         score = parseInt(encoded.substr(num_spaces * 3 / 2), 10)
 249         for t in [0...(spaces.length * 3 / 2)] by 3
 250                 int = 0
 251                 for d in [0...3]
 252                         int *= 44
 253                         char = encoded[t + 2 - d]
 254                         int += save_charset.indexOf(char)
 255                 t2hp = int % 11
 256                 int = Math.floor(int / 11)
 257                 t2letter = String.fromCharCode(char_a + (int % 26))
 258                 int = Math.floor(int / 26)
 259                 t1hp = int % 11
 260                 int = Math.floor(int / 11)
 261                 t1letter = String.fromCharCode(char_a + (int % 26))
 262                 new_letter_queue.push {
 263                         letter: t1letter,
 264                         hp: t1hp
 265                 }
 266                 new_letter_queue.push {
 267                         letter: t2letter,
 268                         hp: t2hp
 269                 }
 270
 271 load_game = (encoded) ->
 272         switch encoded.substr 0, 1
 273                 when "1"
 274                         load_game_1(encoded)
 275                 else
 276                         load_game_0(encoded)
 277
 278 init_board = ->
 279         encoded = window.location.hash
 280         if encoded? and encoded.charAt 0 is '#'
 281                 encoded = encoded.substr 1
 282         unless encoded? and encoded.length > num_spaces
 283                 encoded = get_cookie 'hexbog'
 284         if encoded? and encoded.length > num_spaces
 285                 load_game encoded
 286
 287         # work out which grid spaces are connected
 288         # (neighbors, above, down)
 289         init_board_layout()
 290
 291 $big_tip = null # initialized by init_html_board
 292 $little_tip = null # initialized by init_html_board
 293 $score_display = null # initialized by init_html_board
 294 $definition_body = null # initialized by init_html_board
 295 update_selection_display = ->
 296         word = selected_word()
 297         $big_tip.removeClass('good')
 298         if word.length > 0
 299                 if word.length < 3
 300                         $big_tip.html word
 301                         $little_tip.html "Click more tiles (3 minimum)"
 302                 else
 303                         if is_word word
 304                                 if word.indexOf(word.substr(word.length - 1)) < word.length - 1
 305                                         last = 'last '
 306                                 else
 307                                         last = ''
 308                                 $little_tip.html "Click the #{last}\"#{word.substr(word.length - 1)}\" for #{score_for word} points"
 309                                 $big_tip.html "<a href=\"http://en.wiktionary.org/wiki/#{word}\" target=\"_blank\" title=\"click for definition\">#{word}</a>"
 310                                 $big_tip.addClass('good')
 311                         else
 312                                 $big_tip.html word
 313                                 $little_tip.html "\"#{word}\" is not in the word list."
 314         else
 315                 $big_tip.html "← Click a word"
 316                 $little_tip.html "(tiles must be touching)"
 317
 318         # color the selected tiles according to whether they're a word or not
 319         if word.length
 320                 classes = ['selected_word', 'selected']
 321                 if is_word word
 322                         c = 0
 323                 else
 324                         c = 1
 325                 for tile in selected
 326                         tile.dom.addClass classes[c]
 327                         tile.dom.removeClass classes[1 - c]
 328
 329 # unselects the last tile of the selecetion
 330 unselect_tile = ->
 331         _unselect_tile()
 332         update_selection_display()
 333
 334 _unselect_tile = ->
 335         tile = selected.pop()
 336         dom = tile.dom
 337         if tile.connector?
 338                 tile.connector.remove()
 339                 delete tile.connector
 340         dom.removeClass 'selected_word'
 341         dom.removeClass 'selected'
 342
 343 unselect_all = ->
 344         while selected.length
 345                 _unselect_tile()
 346         update_selection_display()
 347
 348 selected_word = ->
 349         word = ''
 350         word += tile.text for tile in selected
 351         return word.toLowerCase()
 352
 353 save_charset = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQR'
 354 char_a = "a".charCodeAt(0)
 355 save_game = ->
 356         encoded = '1' # save format
 357         for i in [0...spaces.length] by 2
 358                 int = spaces[i].tile.text.toLowerCase().charCodeAt(0) - char_a
 359                 int *= 11
 360                 int += spaces[i].tile.hp
 361                 int *= 26
 362                 int += spaces[i+1].tile.text.toLowerCase().charCodeAt(0) - char_a
 363                 int *= 11
 364                 int += spaces[i+1].tile.hp
 365                 for d in [0...3]
 366                         encoded += save_charset.substr(int % 44, 1)
 367                         int = Math.floor(int / 44)
 368         encoded += score
 369         set_cookie 'hexbog', encoded, 365
 370         window.location.hash = encoded
 371
 372 unsink = (tile) ->
 373         tile.new_hp = 10
 374         tile.text = new_letter().letter
 375         tile.dom.html tile.text
 376
 377
 378 # top-level key is word length
 379 # arrays are [difficulty] level, easiest to hardest
 380 booms = {
 381         3: {
 382                 neighbors: {
 383                         flips: [1,1,1,1,0]
 384                         force: [2,2,1,1,1,1,0]
 385                 }
 386                 neighbor_neighbors: {
 387                         flips: [0]
 388                         force: [0]
 389                 }
 390                 board: {
 391                         flips: [0]
 392                         force: [0]
 393                 }
 394         }
 395         4: {
 396                 neighbors: {
 397                         flips: ['all', 4,4,4,4,4,3,3,2,2,1]
 398                         force: [4,3,3,3,3,3,2]
 399                 }
 400                 neighbor_neighbors: {
 401                         flips: [0]
 402                         force: [2,2,2,1,1,1,0]
 403                 }
 404                 board: {
 405                         flips: [0]
 406                         force: [0]
 407                 }
 408         }
 409         5: {
 410                 neighbors: {
 411                         flips: ['all','all','all','all',5,5,5,4,4,4,3,3,3,2]
 412                         force: [6,6,6,6,5,5,5,4,4,4,3]
 413                 }
 414                 neighbor_neighbors: {
 415                         flips: [2,2,2,2,2,2,1,1,1,1,0]
 416                         force: [4,3,3,3,3,2,2,2,1]
 417                 }
 418                 board: {
 419                         flips: [0]
 420                         force: [0]
 421                 }
 422         }
 423         6: {
 424                 neighbors: {
 425                         flips: ['all','all','all','all','all',9,9,9,9,8,8,8,7,7,7,6,6,6,5,5,5,4]
 426                         force: [9,9,9,9,9,8,8,8,7]
 427                 }
 428                 neighbor_neighbors: {
 429                         flips: [5,5,5,5,5,5,5,4,4,4,3,3,3,2,2,2,1]
 430                         force: [6,6,5,5,4,4,3,3,2]
 431                 }
 432                 board: {
 433                         flips: [0]
 434                         force: [0]
 435                 }
 436         }
 437         7: {
 438                 neighbors: {
 439                         flips: ['all']
 440                         force: [10]
 441                 }
 442                 neighbor_neighbors: {
 443                         flips: ['all','all','all','all',9,8,7,6,5,4,3,2]
 444                         force: [10]
 445                 }
 446                 board: {
 447                         flips: [0]
 448                         force: [5,4,3,2,1]
 449                 }
 450         }
 451         lots: {
 452                 neighbors: {
 453                         flips: [0]
 454                         force: [0]
 455                 }
 456                 neighbor_neighbors: {
 457                         flips: [0]
 458                         force: [0]
 459                 }
 460                 board: {
 461                         flips: ['all']
 462                         force: [10]
 463                 }
 464         }
 465 }
 466 difficulty_level = 0
 467 next_level_at = 200
 468 adjust_difficulty_level = ->
 469         while score > next_level_at
 470                 difficulty_level += 1
 471                 next_level_at *= 1.4
 472
 473
 474 # remove the selected tiles from the board, create new tiles, and slide everything into place
 475 blip_selection = ->
 476         adjust_difficulty_level()
 477         word_length = selected_word().length
 478         faders = selected
 479         selected = []
 480         update_selection_display()
 481         neighbors = {}
 482         nneighbors = {}
 483         for tile in faders
 484                 tile.dom.unbind('click').fadeOut fade_ms
 485                 tile.new_hp = tile.hp
 486                 for n in tile.space.neighbors
 487                         neighbors[n.id] = n.tile
 488                         for nn in n.neighbors
 489                                 nneighbors[nn.id] = nn.tile
 490         # fix overlaps of faders, neighors, nneighbors
 491         for tile in faders
 492                 delete nneighbors[tile.space.id]
 493                 delete neighbors[tile.space.id]
 494         for k, v of neighbors
 495                 delete nneighbors[k]
 496         # convert to arrays so we can sort, etc
 497         nneighbors = (v for k, v of nneighbors)
 498         neighbors = (v for k, v of neighbors)
 499         areas = {
 500                 neighbors: {
 501                         tiles: neighbors
 502                         up: []
 503                         down: []
 504                 }
 505                 neighbor_neighbors: {
 506                         tiles: nneighbors
 507                         up: []
 508                         down: []
 509                 }
 510                 board: {
 511                         tiles: (space.tile for space in spaces)
 512                         up: []
 513                         down: []
 514                 }
 515         }
 516         for k, v of areas
 517                 for t in v.tiles
 518                         if t.hp is 0
 519                                 v.down.push t
 520                         else
 521                                 v.up.push t
 522         if word_length < 8
 523                 boom = booms[word_length]
 524         else
 525                 boom = booms.lots
 526         for area_name, effects of boom
 527                 area = areas[area_name]
 528                 if difficulty_level < effects.flips.length
 529                         flips = effects.flips[difficulty_level]
 530                 else
 531                         flips = effects.flips.last()
 532                 if flips is 'all' or flips >= area.down.length
 533                         for t in area.down
 534                                 unsink t
 535                 else
 536                         down_count = area.down.length
 537                         flips_left = flips
 538                         while flips_left > 0 and down_count > 0
 539                                 flips_left -= 1
 540                                 flipper = Math.floor(Math.random() * down_count)
 541                                 unsink area.down[flipper]
 542                                 down_count -= 1
 543                                 # move the last tile back into range
 544                                 area.down[flipper] = area.down[down_count]
 545                 if difficulty_level < effects.force.length
 546                         force = effects.force[difficulty_level]
 547                 else
 548                         force = effects.force.last()
 549                 if force > 0
 550                         for tile in area.up
 551                                 if tile.new_hp
 552                                         # for overlap of board and [n]neigbors
 553                                         tile.new_hp += force
 554                                 else
 555                                         tile.new_hp = tile.hp + force
 556         for s in spaces
 557                 s.tile.new_hp ?= s.tile.hp - 1
 558                 if s.tile.new_hp < 0
 559                         s.tile.new_hp = 0
 560                 else if s.tile.new_hp > HP_MAX
 561                         s.tile.new_hp = HP_MAX
 562                 if s.tile.new_hp isnt s.tile.hp
 563                         s.tile.dom.removeClass "hp#{s.tile.hp}"
 564                         s.tile.dom.addClass "hp#{s.tile.new_hp}"
 565                         s.tile.hp = s.tile.new_hp
 566                 delete s.tile.new_hp
 567         timeout fade_ms + 1, ->
 568                 # delete old tiles, mark where tiles are moving
 569                 for fader in faders
 570                         fader.space.column.fader_count += 1
 571                         fader.dom.remove()
 572                         fader.removed = true
 573                         for above in fader.space.aboves
 574                                 if above.tile.dest?
 575                                         above.tile.dest += 1
 576                                 else
 577                                         above.tile.dest = above.id + 1
 578
 579                 # move tiles down (graphically and in data structure)
 580                 rspaces = []
 581                 for s in spaces
 582                         rspaces.unshift s
 583                 for space in rspaces
 584                         tile = space.tile
 585                         if tile.dest? and not (tile.removed?)
 586                                 dest_space = spaces[tile.dest]
 587                                 delete tile.dest
 588                                 tile.dom.animate {top: "#{dest_space.top_px}px"}, slide_ms
 589                                 tile.space = dest_space
 590                                 dest_space.tile = tile
 591
 592                 # create new tiles
 593                 for column in columns
 594                         dest = 0
 595                         while column.fader_count > 0
 596                                 column.fader_count -= 1
 597                                 slide_from = -10 - tile_width
 598                                 slide_from -= (50 + tile_width) * column.fader_count
 599                                 space = column.spaces[dest++]
 600                                 tile = new_tile space, slide_from
 601                                 tile.dom.animate {top: "#{space.top_px}px"}, slide_ms
 602
 603                 save_game()
 604
 605 score_for = (word) -> Math.round(Math.pow(1.7, word.length))
 606
 607 activate_selection = ->
 608         word = selected_word()
 609         if word.length < 3
 610                 # should only happen when trying to blip a word with the keyboard
 611                 # FIXME make this a hint
 612                 log "Too short: \"#{word}\""
 613                 return
 614         unless is_word word
 615                 # should only happen when trying to blip a word with the keyboard
 616                 # FIXME make this automatically part of the selection display
 617                 log "Not on word list: \"#{word}\""
 618                 return
 619         word_score = score_for word
 620         score += word_score
 621         $score_display.html score
 622         # FIXME make some kind of animation showing score gain
 623         blip_selection()
 624         look_up_definition word
 625         $('#definition').click()
 626
 627
 628 show_definition = (word, type, definition, language) ->
 629         html = "<a href=\"http://en.wiktionary.org/wiki/#{word}\" target=\"_blank\">"
 630         html += "#{word.substr(0, 1).toUpperCase() + word.substr(1)}</a>, #{type}"
 631         if language isnt 'English'
 632                 html += " (#{language})"
 633         html += ': '
 634         html += definition
 635         html += '<div id="definition_credit">Definition &copy;<a href="http://en.wiktionary.org/" target="_blank">wiktionary.org</a> CC-BY-SA</div>'
 636         $definition_body.html html
 637
 638 connector_width = 11
 639 connector_radius = 5
 640 connector_slant = 12
 641 add_connector = (tile, horiz, vert) ->
 642         style = {}
 643         switch horiz
 644                 when 'left'
 645                         style.right = '100%'
 646                 when 'mid'
 647                         style.left = 21 - connector_radius
 648                 when 'right'
 649                         style.left = '100%'
 650         switch vert
 651                 when 'top'
 652                         style.bottom = '100%'
 653                 when 'up'
 654                         style.top = 21 - connector_radius - connector_slant
 655                 when 'down'
 656                         style.top = 21 - connector_radius + connector_slant
 657                 when 'bot'
 658                         style.top = '100%'
 659         tile.connector = $("<div class=\"connector\"></div>").css style
 660         tile.dom.append tile.connector
 661
 662 select_tile = (tile) ->
 663         selected.push tile
 664         if selected.length > 1
 665                 prev = selected[selected.length - 2]
 666                 if prev.space.top_px < tile.space.top_px
 667                         if prev.space.left_px < tile.space.left_px
 668                                 add_connector tile, 'left', 'up'
 669                         else if prev.space.left_px is tile.space.left_px
 670                                 add_connector tile, 'mid', 'top'
 671                         else
 672                                 add_connector tile, 'right', 'up'
 673                 else
 674                         if prev.space.left_px < tile.space.left_px
 675                                 add_connector tile, 'left', 'down'
 676                         else if prev.space.left_px is tile.space.left_px
 677                                 add_connector tile, 'mid', 'bot'
 678                         else
 679                                 add_connector tile, 'right', 'down'
 680         update_selection_display()
 681
 682 new_tile = (space, y) ->
 683         x = space.left_px
 684         l = new_letter()
 685         letter = l.letter
 686         hp = l.hp
 687
 688         html_tile = $("<div class=\"tile hp#{hp}\" style=\"left: #{x}px; top: #{y}px\" unselectable=\"on\">#{letter}</div>")
 689         $board.append(html_tile)
 690         html_tile.show()
 691
 692         tile = {
 693                 text: letter
 694                 dom: html_tile
 695                 hp: hp
 696                 space: space
 697         }
 698         space.tile = tile
 699
 700         html_tile.click ->
 701                 return unselect_all() if tile.hp < 1
 702                 word = selected_word()
 703                 if tile in selected
 704                         if selected_word().length > 2 and is_word(word) and tile is selected.last()
 705                                 activate_selection()
 706                         else
 707                                 if selected.length is 1
 708                                         unselect_all()
 709                                 else
 710                                         unselect_all()
 711                                         select_tile tile
 712                 else # clicked a non-selected tile
 713                         if selected.length > 0 and not (tile.space in selected.last().space.neighbors)
 714                                 unselect_all()
 715                         select_tile tile
 716         return tile
 717
 718 $board = null
 719 init_html_board = ->
 720         $('#loading').remove()
 721         $big_tip = $('#big_tip')
 722         $little_tip = $('#little_tip')
 723         $score_display = $('#score')
 724         $score_display.html score
 725         $definition_body = $('#definition_body')
 726         $board = $('#board')
 727         # make html for board
 728         for s in spaces
 729                 new_tile s, s.top_px
 730
 731 word_bins = []; word_bins.push(',') for [0...997]
 732 hash_word = (word) ->
 733         h = 0
 734         for i in [0...word.length]
 735                 h ^= word.charCodeAt(i) << ((i*3) % 21)
 736         return h % 997
 737 is_word = (str) ->
 738         word_bins[hash_word str].indexOf(",#{str},") > -1
 739
 740 # this is called automatically by the compressed wordlist
 741 parse_word_list = (compressed) ->
 742         prefix = ''
 743         cap_a = "A".charCodeAt 0
 744         i = 0
 745         next_chunk = ->
 746                 chunk = compressed[i]
 747                 for word in chunk.match(/[a-z]*[A-Z]/g)
 748                         # the capital letter (at the end of the match) says how many characters
 749                         # from the end of the previous word should be removed to create the prefix
 750                         # for the next word. "A" for 0, "B" for 1, "C" for 2, etc
 751                         bs = word[word.length - 1].charCodeAt(0) - cap_a
 752                         word = prefix + word[0 ... word.length - 1]
 753                         word_bins[hash_word word] += word + ','
 754                         prefix = word[0 ... word.length - bs]
 755                 if ++i is compressed.length
 756                         return
 757                 else
 758                         timeout 1, next_chunk
 759         timeout 1, next_chunk
 760
 761 extract_wiktionary_definiton = (html) ->
 762         found = false
 763         finds = {}
 764         language = false
 765         part = false
 766
 767         # clean HTML
 768         ##################
 769         # when we instantiate the html so we can use dom traversal, the browser
 770         # will start loading images and such. This section attempts to mangle the
 771         # html so no resources are loaded when the html is parsed.
 772
 773         # attributes
 774         #                            src: <img>, <audio>, etc
 775         #                         onload: only <body>?
 776         #   archive,codebase,data,usemap: <object>
 777         #                           href: <link>
 778         #                 id,class,style: background: url(foo.png), etc
 779         html = html.replace /[ ]?[a-z]+=['"][^"']*['"]/ig, '', html
 780         html = html.replace /<\/?(audio|source|a|span|table|tr|td|table)>/ig, '', html
 781         html = html.replace /\[edit\]/ig, '', html
 782
 783         elements = $(html)
 784
 785         valid_parts = ["Abbreviation", "Adjective", "Adverb", "Article", "Cardinal number", "Conjunction", "Determiner", "Interjection", "Noun", "Numeral", "Particle", "Preposition", "Pronoun", "Verb"]
 786
 787         elements.each (i, el) ->
 788                 #which tag: el.tagName
 789                 if el.tagName is 'H2'
 790                         # if we found a definition in the previous language section, run with it
 791                         # (we only stop for verbs, in hopes of finding one in english)
 792                         if found
 793                                 return false # break
 794                         part = false # mark us not being in a definition section unless the next section finds a part of speach header
 795                         language = $(el).text()
 796                 if language and el.tagName is 'H3' or el.tagName is 'H4' # eg yak def uses one for english and one for dutch
 797                         part = false
 798                         text = $(el).text()
 799                         for p in valid_parts
 800                                 if text is "#{p}"
 801                                         part = p.toLowerCase()
 802                                         # FIXME break
 803                 if part and el.tagName is 'OL'
 804                         $(el).children().each (i, el) ->
 805                                 new_def = $(el).text()
 806                                 if new_def.substr(0, 9) is '(obsolete' or new_def.substr(0, 8) is "(archaic" or new_def.substr(0, 20) is "Alternative form of " or new_def.substr(0, 24) is "Alternative spelling of "
 807                                         key = 'lame'
 808                                 else
 809                                         if part is 'verb'
 810                                                 key = 'verb'
 811                                         else
 812                                                 key = 'nonverb'
 813                                 finds[key] ?= [part, new_def, language]
 814                                 found = true
 815                                 if part is 'verb'
 816                                         # verbs are the best! stop scanning when we find one
 817                                         return false # break
 818                         if found.verb
 819                                 return false # break
 820
 821         part_defs = (finds[i] for i in ['verb', 'nonverb', 'lame'] when finds[i])
 822         unless part_defs.length
 823                 return false
 824
 825         return part_defs[0]
 826
 827
 828 look_up_definition = (word) ->
 829         $definition_body.html "Looking up definition for \"#{word}\"..."
 830         $.ajax({
 831                 url: "http://en.wiktionary.org/w/api.php?action=parse&format=json&page=#{word}"
 832                 jsonpCallback: "lud_#{word}" # always use the same callback for the same word so it's cacheable
 833                 dataType: 'jsonp'
 834                 cache: true
 835                 success: (data, error_msg, xhr) ->
 836                         if data?.parse?.text?['*']?
 837                                 tdl = extract_wiktionary_definiton data.parse.text['*']
 838                                 if tdl
 839                                         show_definition word, tdl[0], tdl[1], tdl[2]
 840                                 else
 841                                         $definition_body.html "Oops, could't find a definition for \"#{word}\"."
 842                         else
 843                                 $definition_body.html "Sorry, couldn't find a definition for \"#{word}\"."
 844         })
 845
 846 start_over = ->
 847         selected = []
 848         score = 0
 849         difficulty_level = 0
 850         next_level_at = 200
 851         $score_display.html score
 852         for s in spaces
 853                 selected.push s.tile
 854         blip_selection()
 855
 856 init_start_over_link = ->
 857         $('#start-over').click (event) ->
 858                 event.preventDefault()
 859                 if confirm "Are you sure you want to start over? There is no undo."
 860                         start_over()
 861
 862 cur_tab = 'instructions'
 863 tabtab_height = 20
 864 tab_height = 150
 865 init_tab = (t) ->
 866         $('#' + t).click ->
 867                 return if t is cur_tab
 868                 $('#' + cur_tab).removeClass('selected-tab').addClass('tab').animate({height: tabtab_height}, 1000)
 869                 $('#' + t).removeClass('tab').addClass('selected-tab').animate({height: tab_height}, 1000)
 870                 cur_tab = t
 871 init_tabs = ->
 872         for t in ['instructions', 'definition', 'donate', 'restart']
 873                 init_tab t
 874
 875 init_keybinding = ->
 876         $(window).keydown (e) ->
 877                 switch e.keyCode
 878                         when 32, 10, 13
 879                                 activate_selection()
 880                         when 27
 881                                 unselect_all()
 882
 883 log = (args...) ->
 884         console.log args... if console?.log?
 885
 886 init_game = ->
 887         if $(window).height() >= 440
 888                 $('#centerer').css('margin-top', '25px')
 889         init_keybinding()
 890         init_tabs()
 891         init_board()
 892         init_html_board()
 893         init_start_over_link()
 894         update_selection_display()
 895
 896 $(init_game)