本文实例讲述了JavaScript模拟深蓝vs卡斯帕罗夫的国际象棋对局示例。分享给大家供大家参考。具体如下：
/** * 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
8║♜ ♞ ♝ ♛ ♚ ♝ ♞ ♜ Move: 0
7║♟ ♟ ♟ ♟ ♟ ♟ ♟ ♟
6║
5║
4║
3║
2║♙ ♙ ♙ ♙ ♙ ♙ ♙ ♙
1║♖ ♘ ♗ ♕ ♔ ♗ ♘ ♖
╚═══════════════
a b c d e f g h
Deep Blue
";var gameintro = ["Site: Philadelphia, PA USA
Date: 1996.02.10
Round: 1
White: Deep Blue
Black: Kasparov, Garry
Result: 1-0
Opening: Sicilian Defense 2.c3
Annotator: Wheeler, David A.
","This game is world-famous, because it was the first game
won by a computer against a reigning world champion under
ormal chess tournament conditions （in particular, normal time controls）.
","Deep Blue was a computer developed by IBM to win against Kasparov.
Deep Blue won this game, but Kasparov rebounded over the following 5
games to win 3 and draw 2, soundly beating Deep Blue in the 1996 match.
","In the 1997 rematch, Deep Blue managed to win the entire match.
Garry Kasparov is considered to be one of the greatest human chess players
of all time, so both this single game and the later win of a match showed
hat computer-based chess had truly arrived at the pinnacle of chess play.
"];var movelist = "1. e2e4 c7c5
2. c2c3
{It"s more common to play 2. Nf3, but Kasparov has deep experience with
hat line, so white"s opening book goes in a different direction.}
\n2.... d7d5
3. e4xd5 Qd8xd5
4. d2d4 Ng8f6
5. Ng1f3 Bc8g4
6. Bf1e2 e7e6
7. h2h3 Bg4h5
8. e1g1h1f1 Nb8c6
9. Bc1e3 c5xd4
10. c3xd4 Bf8b4
{A more common move here is Be7. This was a new approach by Kasparov,
developing the bishop in an unusual way. Whether or not it"s a good
approach is debated. After this move, the computer left its opening book
and began calculating its next move.}
\n11. a2a3 Bb4a5
12. Nb1c3 Qd5d6
13. Nc3b5 Qd6e7?！
{This allows white to make its pieces more active.
Other moves, which would probably be better, include Qb8 and Qd5.}
\n14. Nf3e5！ Bh5xe2
15. Qd1xe2 e8g8h8f8
16. Ra1c1 Ra8c8
17. Be3g5
{Black now has a problem, especially with the pinned knight on f6.}
\n17.... Ba5b6
18. Bg5xf6 g7xf6
{Kasparov avoids ... Qxf6? because white would gain material with 19. Nd7.
Note that Kasparov"s king is now far more exposed.}
\n19. Ne5c4！ Rf8d8
20. Nc4xb6！ a7xb6
21. Rf1d1 f6f5
22. Qe2e3！
{This is an excellent place for the white queen.}
\n22... Qe7f6
23. d4d5！
{Kasparov commented that he might have offered this pawn
sacrifice himself in this position, since it hurt black"s pawn
structure, opened up the board, and black"s exposed king suggested
hat there was probably a way to exploit the result.
Kasparov has been attacking the d4 pawn, and the computer wisely
decided to advance it for an attack instead of trying to defend it.}
\n23... Rd8xd5
24. Rd1xd5 e6xd5
25. b2b3！ Kg8h8?
{Kasparov attempts to prepare a counter-attack, by preparing to
move his rook to file g, but it won"t work.
Burgess suggests that 25.... Ne7 Rxc8+ would have better, though
white would still have some advantage.
Indeed, after this point on it"s difficult to identify
any move that will dramatically help black.}
\n26. Qe3xb6 Rc8g8
27. Qb6c5 d5d4
28. Nb5d6 f5f4
29. Nd6xb7
{This is a very "computerish"/materialistic move; white is grabbing
an undeveloped pawn for a small gain in material.
However, the computer has not identified any threat of checkmate or
other risks from black, so it simply acquires the material.}
\n29.... Nc6e5
30. Qc5d5
{The move 30. Qxd4?? would be terrible, because Nf3+
would win the white queen.}
\n30.... f4f3
31. g2g3 Ne5d3
{The move 31... Qf4 won"t work, because of 32. Rc8！ Qg5 33. Rc5！}
\n32. Rc1c7 Rg8e8
{Kasparov is attacking, but the computer has correctly determined that
he attack is not a real threat.}
\n33. Nb7d6 Re8e1+
34. Kg1h2 Nd3xf2
35. Nd6xf7+ Kh8g7
36. Nf7g5 Kg7h6
37. Rc7xh7+
{Kasparov resigns - expecting ... Kg6 38. Qg8+ Kf5 Nxf3 and white"s
strength is overwhelming. White will have lots of ways to defeat black,
while black has no real way to attack white.}
";/****************************** * Komodo macro contents begin. ******************************/var moveDisplayTime = 2000; // millisecondsvar 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 caretscimoz.indicSetStyle（indicWhiteSquare, scimoz.INDIC_STRAIGHTBOX）; // See Scintilla docs for othersscimoz.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 othersscimoz.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 othersscimoz.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 othersscimoz.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（"
"）;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（"
"）;}// 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 + "
" + 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 + "
"）;}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（"
"）;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 + "
" + ex.stack.toString（））;}}// Create a new text file asynchronously and start playing chess.ko.views.manager.doNewViewAsync（"Text", "editor", PlayChess）;希望本文所述对大家的javascript程序设计有所帮助。
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