JavaScript模擬深藍vs卡斯帕羅夫的國際象棋對局示例
這篇文章主要介紹了JavaScript模擬深藍vs卡斯帕羅夫的國際象棋對局示例,使用javascript較為逼真的模擬出了國際象棋對弈的場景,需要的朋友可以參考下
本文實例講述了JavaScript模擬深藍vs卡斯帕羅夫的國際象棋對局示例。分享給大家供大家參考。具體如下：
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 /** * JavaScript macro to run a chess game, showing board, pieces and moves played. * * Author: Todd Whiteman * Revision: 1.0 * Date: October 2012 */ var board = " Garry Kasparov n 8║♜ ♞ ♝ ♛ ♚ ♝ ♞ ♜ Move: 0 n 7║♟ ♟ ♟ ♟ ♟ ♟ ♟ ♟ n 6║ n 5║ n 4║ n 3║ n 2║♙ ♙ ♙ ♙ ♙ ♙ ♙ ♙ n 1║♖ ♘ ♗ ♕ ♔ ♗ ♘ ♖ n ╚═══════════════ n a b c d e f g h n Deep Blue n "; var gameintro = [ "Site: Philadelphia, PA USA n Date: 1996.02.10 n Round: 1 n White: Deep Blue n Black: Kasparov, Garry n Result: 1-0 n Opening: Sicilian Defense 2.c3 n Annotator: Wheeler, David A. n ", "This game is world-famous, because it was the first game n won by a computer against a reigning world champion under n normal chess tournament conditions (in particular, normal time controls). n ", "Deep Blue was a computer developed by IBM to win against Kasparov. n Deep Blue won this game, but Kasparov rebounded over the following 5 n games to win 3 and draw 2, soundly beating Deep Blue in the 1996 match. n ", "In the 1997 rematch, Deep Blue managed to win the entire match. n Garry Kasparov is considered to be one of the greatest human chess players n of all time, so both this single game and the later win of a match showed n that computer-based chess had truly arrived at the pinnacle of chess play. n " ]; var movelist = " 1. e2e4 c7c5 n 2. c2c3 n {It's more common to play 2. Nf3, but Kasparov has deep experience with n that line, so white's opening book goes in a different direction.} n n 2.... d7d5 n 3. e4xd5 Qd8xd5 n 4. d2d4 Ng8f6 n 5. Ng1f3 Bc8g4 n 6. Bf1e2 e7e6 n 7. h2h3 Bg4h5 n 8. e1g1h1f1 Nb8c6 n 9. Bc1e3 c5xd4 n 10. c3xd4 Bf8b4 n {A more common move here is Be7. This was a new approach by Kasparov, n developing the bishop in an unusual way. Whether or not it's a good n approach is debated. After this move, the computer left its opening book n and began calculating its next move.} n n 11. a2a3 Bb4a5 n 12. Nb1c3 Qd5d6 n 13. Nc3b5 Qd6e7?! n {This allows white to make its pieces more active. n Other moves, which would probably be better, include Qb8 and Qd5.} n n 14. Nf3e5! Bh5xe2 n 15. Qd1xe2 e8g8h8f8 n 16. Ra1c1 Ra8c8 n 17. Be3g5 n {Black now has a problem, especially with the pinned knight on f6.} n n 17.... Ba5b6 n 18. Bg5xf6 g7xf6 n {Kasparov avoids ... Qxf6? because white would gain material with 19. Nd7. n Note that Kasparov's king is now far more exposed.} n n 19. Ne5c4! Rf8d8 n 20. Nc4xb6! a7xb6 n 21. Rf1d1 f6f5 n 22. Qe2e3! n {This is an excellent place for the white queen.} n n 22... Qe7f6 n 23. d4d5! n {Kasparov commented that he might have offered this pawn n sacrifice himself in this position, since it hurt black's pawn n structure, opened up the board, and black's exposed king suggested n that there was probably a way to exploit the result. n Kasparov has been attacking the d4 pawn, and the computer wisely n decided to advance it for an attack instead of trying to defend it.} n n 23... Rd8xd5 n 24. Rd1xd5 e6xd5 n 25. b2b3! Kg8h8? n {Kasparov attempts to prepare a counter-attack, by preparing to n move his rook to file g, but it won't work. n Burgess suggests that 25.... Ne7 Rxc8+ would have better, though n white would still have some advantage. n Indeed, after this point on it's difficult to identify n any move that will dramatically help black.} n n 26. Qe3xb6 Rc8g8 n 27. Qb6c5 d5d4 n 28. Nb5d6 f5f4 n 29. Nd6xb7 n {This is a very 'computerish'/materialistic move; white is grabbing n an undeveloped pawn for a small gain in material. n However, the computer has not identified any threat of checkmate or n other risks from black, so it simply acquires the material.} n n 29.... Nc6e5 n 30. Qc5d5 n {The move 30. Qxd4?? would be terrible, because Nf3+ n would win the white queen.} n n 30.... f4f3 n 31. g2g3 Ne5d3 n {The move 31... Qf4 won't work, because of 32. Rc8! Qg5 33. Rc5!} n n 32. Rc1c7 Rg8e8 n {Kasparov is attacking, but the computer has correctly determined that n the attack is not a real threat.} n n 33. Nb7d6 Re8e1+ n 34. Kg1h2 Nd3xf2 n 35. Nd6xf7+ Kh8g7 n 36. Nf7g5 Kg7h6 n 37. Rc7xh7+ n {Kasparov resigns - expecting ... Kg6 38. Qg8+ Kf5 Nxf3 and white's n strength is overwhelming. White will have lots of ways to defeat black, n while black has no real way to attack white.} n "; /****************************** * Komodo macro contents begin. ******************************/ var moveDisplayTime = 2000; // milliseconds var messageDisplayTime = 6000; // milliseconds // Indicator values, range from 8..30 - though Komodo uses a lot of these // numbers for special purposes. var indicWhiteSquare = 10; var indicBlackSquare = 11; var indicMoveFrom = 12; var indicMoveTo = 13; /** * Highlight the black/white chess squares. * * @param {Components.interfaces.ISciMoz} scimoz - The editor control. */ function HighlightSquares(scimoz) { for (var line=1; line < 9; line++) { for (var col=6; col < 21; col+=2) { var pos = scimoz.findColumn(line, col); var charlength = scimoz.positionAfter(pos) - pos; var isBlackSquare = (line % 2) == 0 ? (col % 4) == 0 : (col % 4) == 2; if (isBlackSquare) { scimoz.indicatorCurrent = indicBlackSquare; } else { scimoz.indicatorCurrent = indicWhiteSquare; } scimoz.indicatorFillRange(pos, charlength); } } } /** * Draw the starting board layout. * * @param {Components.interfaces.ISciMoz} scimoz - The editor control. */ function DrawInitialBoard(scimoz) { // Set board styling. scimoz.setMarginWidthN(0, 0); // Remove the line number margin. scimoz.caretStyle = scimoz.CARETSTYLE_INVISIBLE; // Hide the caret scimoz.indicSetStyle(indicWhiteSquare, scimoz.INDIC_STRAIGHTBOX); // See Scintilla docs for others scimoz.indicSetAlpha(indicWhiteSquare, 40); scimoz.indicSetOutlineAlpha(indicWhiteSquare, 30); scimoz.indicSetFore(indicWhiteSquare, 0xFFFFFF); // Colour is BGR format!! scimoz.indicSetStyle(indicBlackSquare, scimoz.INDIC_STRAIGHTBOX); // See Scintilla docs for others scimoz.indicSetAlpha(indicBlackSquare, 40); scimoz.indicSetOutlineAlpha(indicBlackSquare, 30); scimoz.indicSetFore(indicBlackSquare, 0x000000); // Colour black - it's BGR format!! scimoz.indicSetStyle(indicMoveFrom, scimoz.INDIC_ROUNDBOX); // See Scintilla docs for others scimoz.indicSetAlpha(indicMoveFrom, 40); scimoz.indicSetOutlineAlpha(indicMoveFrom, 90); scimoz.indicSetFore(indicMoveFrom, 0x00EEEE); // Colour is BGR format!! scimoz.indicSetStyle(indicMoveTo, scimoz.INDIC_ROUNDBOX); // See Scintilla docs for others scimoz.indicSetAlpha(indicMoveTo, 40); scimoz.indicSetOutlineAlpha(indicMoveTo, 90); scimoz.indicSetFore(indicMoveTo, 0x00EEEE); // Colour is BGR format!! // Add the board text. scimoz.addText(ko.stringutils.bytelength(board), board); // Make it a large board - valid range is +-20. scimoz.zoom = 15; // Highlight the black/white squares. HighlightSquares(scimoz); } /** * Display the given message beside the board. Clears any previous message. * * @param {Components.interfaces.ISciMoz} scimoz - The editor control. * @param {String} message - The message to display. */ function DisplayMessage(scimoz, message, nosplit) { try { // Clear existing message lines. for (var line=1; line < scimoz.lineCount; line++) { var pos = scimoz.findColumn(line, 26); var eolpos = scimoz.getLineEndPosition(line); if (eolpos > pos) { scimoz.targetStart = pos; scimoz.targetEnd = eolpos; scimoz.replaceTarget(0, ""); } } // Format the message. var textUtils = Components.classes["@activestate.com/koTextUtils;1"] .getService(Components.interfaces.koITextUtils); var lines = message.split("n"); for (var i=0; i < lines.length; i++) { lines[i] = ko.stringutils.strip(lines[i]); } if (!nosplit) { message = lines.join(" "); message = textUtils.break_up_lines(message, 26); lines = message.split("n"); } // Display new message - limit lines to for (var i=0; i < lines.length; i++) { var line = lines[i]; if (i+1 >= scimoz.lineCount) { scimoz.currentPos = scimoz.length; scimoz.newLine(); } var pos = scimoz.findColumn(i+1, 26); var lineStart = scimoz.positionFromLine(i+1); var lineDiff = pos - lineStart; while (lineDiff < 26) { // Add space padding to the start of the line. line = " " + line; lineDiff += 1; } scimoz.currentPos = pos; scimoz.addText(ko.stringutils.bytelength(line), line); } } catch(ex) { // Exception handling - show problems to the user. alert("Error: " + ex + "nn" + ex.stack.toString()); } } /** * Play the introduction strings. * * @param {Components.interfaces.ISciMoz} scimoz - The editor control. */ function PlayIntro(scimoz, callback) { for (var i=0; i < gameintro.length; i++) { setTimeout(DisplayMessage, messageDisplayTime * i, scimoz, gameintro[i], i == 0); } setTimeout(callback, (messageDisplayTime * gameintro.length), scimoz); } /** * Highlight the chess move. * * @param {Components.interfaces.ISciMoz} scimoz - The editor control. * @param {Integer} indicator - The indicator to use for highlighting. * @param {Integer} pos - The position to highlight. */ function HighlightMove(scimoz, indicator, pos) { scimoz.indicatorCurrent = indicator; scimoz.indicatorClearRange(0, scimoz.length); var charlength = scimoz.positionAfter(pos) - pos; scimoz.indicatorFillRange(pos, charlength); } /** * Determine the position in the document for the co-ordinates. * * @param {Components.interfaces.ISciMoz} scimoz - The editor control. * @param {String} move - The coded chess move to make. */ function GetBoardPosition(scimoz, chesscode) { var col = chesscode.charCodeAt(0) - 'a'.charCodeAt(0); var row = '8'.charCodeAt(0) - chesscode.charCodeAt(1); return scimoz.findColumn(row+1, (col*2)+6); } /** * Make the given chess move. * * @param {Components.interfaces.ISciMoz} scimoz - The editor control. * @param {String} move - The coded chess move to make. */ function MakeMove(scimoz, move) { var isTake = (move.indexOf("x") >= 0); move = move.replace("x", ""); if (move.length == 8) { // Special double move for castling. MakeMove(scimoz, move.substr(4)); move = move.substr(0, 4); } if (move.length >= 5) { move = move.substr(1); } var fromPos = GetBoardPosition(scimoz, move.substr(0, 2)); scimoz.targetStart = fromPos; scimoz.targetEnd = scimoz.positionAfter(fromPos); piece = scimoz.getTextRange(fromPos, scimoz.targetEnd); scimoz.replaceTarget(" ".length, " "); HighlightMove(scimoz, indicMoveFrom, fromPos); var toPos = GetBoardPosition(scimoz, move.substr(2)); scimoz.targetStart = toPos; scimoz.targetEnd = scimoz.positionAfter(toPos); scimoz.replaceTarget(piece.length, piece); HighlightSquares(scimoz); HighlightMove(scimoz, indicMoveTo, toPos); // Clear old messages. DisplayMessage(scimoz, "", false); } /** * Make the given chess move. * * @param {Components.interfaces.ISciMoz} scimoz - The editor control. * @param {String} move - The coded chess move to make. */ function ProcessMove(scimoz, move) { move = move.replace("!", ""); move = move.replace("?", ""); move = move.replace("+", ""); var match = move.match(/(d+).s*([w.]+)s*(w+)?/); if (!match.length) { dump("Unrecognized move: " + move + "n"); } var moveWhite = match[2]; var moveBlack = match[3]; if (moveWhite[0] != ".") { MakeMove(scimoz, moveWhite); } else { MakeMove(scimoz, moveBlack); return; } setTimeout(MakeMove, moveDisplayTime, scimoz, moveBlack); } /** * Play all of the chess moves and display the move commentary. * * @param {Components.interfaces.ISciMoz} scimoz - The editor control. */ function PlayMoves(scimoz) { var moves = movelist.split("n"); var state = "move"; var message = ""; var nexttimeout = 0; for (var i=0; i < moves.length; i++) { var move = ko.stringutils.strip(moves[i]); if (!move) { continue; } switch (state) { case "move": if (move.match(/^[0-9]+./)) { // Piece to move. setTimeout(ProcessMove, nexttimeout, scimoz, move); nexttimeout += moveDisplayTime; nexttimeout += moveDisplayTime; break; } else if (move[0] == "{") { state = "message"; message = ""; move = move.substr(1); // Fallthrough. } else { continue; } case "message": if (move.indexOf("}") >= 0) { move = move.substring(0, move.indexOf("}")); state = "move"; } if (message) message += " "; message += move; if (state == "move") { setTimeout(DisplayMessage, nexttimeout, scimoz, message, false); message = ""; nexttimeout += messageDisplayTime; } break; } } } /** * Play the chess game in the given editor. * * @param {Components.interfaces.koIScintillaView} view - The editor view. */ function PlayChess(view) { try { /** * @type {Components.interfaces.ISciMoz} - The editor control. */ var scimoz = view.scimoz; DrawInitialBoard(scimoz); PlayIntro(scimoz, PlayMoves); } catch(ex) { // Exception handling - show problems to the user. alert("Error: " + ex + "nn" + ex.stack.toString()); } } // Create a new text file asynchronously and start playing chess. ko.views.manager.doNewViewAsync("Text", "editor", PlayChess);希望本文所述對大家的javascript程序設計有所幫助。