// MICHAEL MCELROY, MICHAELMCELROY.NET
// COPYRIGHT, 2006, ALL RIGHTS RESERVED
if (typeof (Development) == "undefined") Development = new Object ();
Development . MessageBox = function ()
{
this . window = null;
this . initializedPredicate = 0;
this . initiate = function ()
{
this . initializedPredicate = 0;
this . recycleWindow ();
return;
};
this . initialize = function ()
{
var html;
this . finalize ();
this . initializedPredicate = 1;
this . recycleWindow ();
html = "";
html = html + "\n";
html = html + "\n";
html = html + " \n";
html = html + "\n";
html = html + " \n";
html = html + "\n";
html = html + " MessageBox\n";
html = html + "\n";
html = html + " \n";
html = html + "\n";
html = html + " \n";
html = html + "\n";
html = html + " \n";
html = html + "\n";
html = html + " \n";
html = html + "\n";
html = html + " \n";
html = html + "\n";
html = html + " \n";
html = html + "\n";
html = html + " Message Box\n";
html = html + "\n";
html = html + "
\n";
html = html + "\n";
html = html + " \n";
html = html + "\n";
html = html + "
\n";
html = html + "\n";
html = html + " \n";
html = html + "\n";
html = html + " \n";
this . window = window . open ('', (new Date ()) . toString (), 'height = 300, menubar = 0, resizable = 1, scrollbars = 1, status = 0, toolbar = 0, width = 900');
this . window . document . writeln (html);
this . window . document . close ();
return;
};
this . finalize = function ()
{
this . initializedPredicate = 0;
this . recycleWindow ();
return;
}
this . recycleWindow = function ()
{
if (this . window != null)
this . window . close ();
this . window = null;
return;
};
this . getInitializedPredicate = function ()
{
if (this . initializedPredicate == 0 ) return (0);
if (this . window == null ) return (0);
if (typeof (this . window . existsPredicate) == "undefined" ) return (0);
return (1);
};
this . addType = function (type)
{
if (this . getInitializedPredicate () == 1)
if (typeof (this . window . addType) != "undefined")
this . window . addType (type);
return;
};
this . addMessage = function (type, text)
{
if (this . getInitializedPredicate () == 1)
if (typeof (this . window . addMessage) != "undefined")
this . window . addMessage (type, text);
return;
};
this . removeMessages = function ()
{
if (this . initializedPredicate == 1)
if (typeof (this . window . removeMessages) != "undefined")
this . window . removeMessages ();
return;
};
};
function InternetClient ()
{
this . initiate = function ()
{
}
this . initialize = function ()
{
}
this . getPageHeight = function ()
{
var height = 0;
if (typeof (window . innerHeight) == 'number')
height = window.innerHeight; // MOZILLA
else if (document . documentElement && document . documentElement . clientHeight)
height = document . documentElement . clientHeight; // INTERNET EXPLORER, "STANDARDS COMPLIANT MODE"
else if (document . body && document . body . clientHeight)
height = document . body . clientHeight; // INTERNET EXPLORER, "IE4 COMPATIBLE"
return (height);
}
this . getPageWidth = function ()
{
var width = 0;
if (typeof (window . innerWidth) == 'number')
width = window.innerWidth; // MOZILLA
else if (document . documentElement && document . documentElement . clientWidth)
width = document . documentElement . clientWidth; // INTERNET EXPLORER, "STANDARDS COMPLIANT MODE"
else if (document . body && document . body . clientWidth)
width = document . body . clientWidth; // INTERNET EXPLORER, "IE4 COMPATIBLE"
return (width);
}
}
function DocumentObjectModel ()
{
this . document = null;
this . getSupportedPredicate = function ()
{
}
this . initiate = function ()
{
this . document = document;
}
this . initialize = function ()
{
}
this . appendNode = function (mainNode, appendageNode)
{
mainNode . appendChild (appendageNode);
}
this . clearNodes = function (node)
{
while (node . hasChildNodes ()) node . removeChild (node . firstChild);
}
this . createNode = function (tagName)
{
return (this . document . createElement (tagName));
}
this . createTextNode = function (text)
{
return (this . document . createTextNode (text));
}
this . getDocument = function ()
{
return (this . document);
}
this . getNode = function (nodeName)
{
return (this . document . getElementById (nodeName));
}
this . getValue = function (text)
{
return (parseInt (text));
}
this . getLayerX = function (cursorEvent)
{
if (typeof (cursorEvent) != "undefined")
if (typeof (cursorEvent . layerX) != "undefined")
return (cursorEvent . layerX);
if (typeof (event) != "undefined")
if (typeof (event . offsetX) != "undefined")
return (event . offsetX);
return (0);
}
this . getLayerY = function (cursorEvent)
{
if (typeof (cursorEvent) != "undefined")
if (typeof (cursorEvent . layerY) != "undefined")
return (cursorEvent . layerY);
if (typeof (event) != "undefined")
if (typeof (event . offsetY) != "undefined")
return (event . offsetY);
return (0);
}
this . getKeyCode = function (keyEvent)
{
var keyCode = 0;
if (navigator . userAgent . indexOf ("MSIE") == - 1)
keyCode = keyEvent . which;
else
keyCode = window . event . keyCode;
return (keyCode);
}
}
function NetworkSocket ()
{
this . division = null;
this . script = null;
this . initiate = function ()
{
this . division = documentObjectModel . createNode ("div");
this . division . id = "NetworkSocket";
documentObjectModel . appendNode (documentObjectModel . getDocument () . body, this . division);
}
this . initialize = function ()
{
documentObjectModel . clearNodes (this . division);
this . script = null;
}
this . execute = function (command)
{
this . script = documentObjectModel . createNode ("script");
this . script . id = "NetworkSocket_Script";
this . script . type = "text/javascript";
this . script . src = command;
documentObjectModel . clearNodes (this . division);
documentObjectModel . appendNode (this . division, this . script);
}
}
function CheckerPiece ()
{
// STATE
this . ownPredicate = 0;
this . kingPredicate = 0;
this . reversedPredicate = 0;
// INTERFACE
this . division = null;
this . height = 0;
this . width = 0;
this . initiate = function ()
{
this . division = documentObjectModel . createNode ("div");
}
this . initialize = function ()
{
this . ownPredicate = 0;
this . kingPredicate = 0;
this . reversedPredicate = 0;
this . height = 50;
this . width = 50;
this . division . id = "CheckerPiece";
this . division . style . position = "absolute";
this . division . style . top = "0px";
this . division . style . left = "0px";
this . division . style . height = (this . height) + "px";
this . division . style . width = (this . width) + "px";
this . division . style . overflow = "hidden";
this . division . style . zIndex = "3";
}
this . getNode = function ()
{
return (this . division);
}
this . render = function (renderNode)
{
documentObjectModel . appendNode (renderNode, this . getNode ());
}
this . elevate = function ()
{
this . division . style . zIndex = "4";
}
this . ground = function ()
{
this . division . style . zIndex = "3";
}
this . getHeight = function ()
{
return (this . height);
}
this . getWidth = function ()
{
return (this . width);
}
this . getOwnPredicate = function ()
{
return (this . ownPredicate);
}
this . setOwnPredicate = function (predicate)
{
this . ownPredicate = predicate;
this . update ();
}
this . getKingPredicate = function ()
{
return (this . kingPredicate);
}
this . setKingPredicate = function (predicate)
{
this . kingPredicate = predicate;
this . update ();
}
this . setCoordinates = function (top, left)
{
this . division . style . top = (top) + "px";
this . division . style . left = (left) + "px";
}
this . reverse = function ()
{
this . reversedPredicate = 1;
this . ownPredicate = this . ownPredicate ? 0 : 1;
this . update ();
}
this . update = function ()
{
if (navigator . userAgent . indexOf ("Firefox") != - 1)
{
if ( this . reversedPredicate && this . ownPredicate && ! this . kingPredicate) this . division . style . backgroundImage = "url(/games/checkers/Checkers/pictures/piece.secondary.soldier.png)";
if ( this . reversedPredicate && this . ownPredicate && this . kingPredicate) this . division . style . backgroundImage = "url(/games/checkers/Checkers/pictures/piece.secondary.king.png)";
if ( this . reversedPredicate && ! this . ownPredicate && ! this . kingPredicate) this . division . style . backgroundImage = "url(/games/checkers/Checkers/pictures/piece.primary.soldier.png)";
if ( this . reversedPredicate && ! this . ownPredicate && this . kingPredicate) this . division . style . backgroundImage = "url(/games/checkers/Checkers/pictures/piece.primary.king.png)";
if (! this . reversedPredicate && this . ownPredicate && ! this . kingPredicate) this . division . style . backgroundImage = "url(/games/checkers/Checkers/pictures/piece.primary.soldier.png)";
if (! this . reversedPredicate && this . ownPredicate && this . kingPredicate) this . division . style . backgroundImage = "url(/games/checkers/Checkers/pictures/piece.primary.king.png)";
if (! this . reversedPredicate && ! this . ownPredicate && ! this . kingPredicate) this . division . style . backgroundImage = "url(/games/checkers/Checkers/pictures/piece.secondary.soldier.png)";
if (! this . reversedPredicate && ! this . ownPredicate && this . kingPredicate) this . division . style . backgroundImage = "url(/games/checkers/Checkers/pictures/piece.secondary.king.png)";
}
else
{
if ( this . reversedPredicate && this . ownPredicate && ! this . kingPredicate) this . division . style . backgroundImage = "url(/games/checkers/Checkers/pictures/piece.secondary.soldier.gif)";
if ( this . reversedPredicate && this . ownPredicate && this . kingPredicate) this . division . style . backgroundImage = "url(/games/checkers/Checkers/pictures/piece.secondary.king.gif)";
if ( this . reversedPredicate && ! this . ownPredicate && ! this . kingPredicate) this . division . style . backgroundImage = "url(/games/checkers/Checkers/pictures/piece.primary.soldier.gif)";
if ( this . reversedPredicate && ! this . ownPredicate && this . kingPredicate) this . division . style . backgroundImage = "url(/games/checkers/Checkers/pictures/piece.primary.king.gif)";
if (! this . reversedPredicate && this . ownPredicate && ! this . kingPredicate) this . division . style . backgroundImage = "url(/games/checkers/Checkers/pictures/piece.primary.soldier.gif)";
if (! this . reversedPredicate && this . ownPredicate && this . kingPredicate) this . division . style . backgroundImage = "url(/games/checkers/Checkers/pictures/piece.primary.king.gif)";
if (! this . reversedPredicate && ! this . ownPredicate && ! this . kingPredicate) this . division . style . backgroundImage = "url(/games/checkers/Checkers/pictures/piece.secondary.soldier.gif)";
if (! this . reversedPredicate && ! this . ownPredicate && this . kingPredicate) this . division . style . backgroundImage = "url(/games/checkers/Checkers/pictures/piece.secondary.king.gif)";
}
}
}
function CheckerPanel ()
{
// STATE
this . boardState = null; // AN ARRAY OF CODES THAT DESCRIBES WHAT OCCUPIES EACH SQUARE ON THE BOARD.
this . ownPin = null; // A MULTI-DIGIT PIN THAT IS USED TO IDENTIFY {THIS PLAYER, THIS BOARD INSTANCE}.
this . opponentPin = null; // A MULTI-DIGIT PIN THAT IS USED TO IDENTIFY {THAT PLAYER, THIS BOARD INSTANCE}.
this . currentPlayerPin = null; // A COPY OF THE PIN THAT IS OWNED BY THE PLAYER WHO'S TURN IT IS.
this . setOpponentPinDelegate = null;
this . setRulesDelegate = null;
this . okayButtonInstructions = null;
// INTERFACE
this . title = null;
this . division = null;
this . titleDivision = null;
this . messageDivision = null;
this . opponentPlayerTypeFormDivision = null;
this . okayButtonDivision = null;
this . pinFormDivision = null;
this . pinDivision = null;
this . ownPinArea = null;
this . opponentPinArea = null;
this . playerDivision = null;
this . playerImage = null;
this . capturedDivision = null;
this . rulesFormDivision = null;
this . rulesDivision = null;
this . lowMessageColor = null;
this . mediumMessageColor = null;
this . highMessageColor = null;
this . initiate = function ()
{
this . division = documentObjectModel . createNode ("div");
this . titleDivision = documentObjectModel . createNode ("div");
this . messageDivision = documentObjectModel . createNode ("div");
this . opponentPlayerTypeFormDivision = documentObjectModel . createNode ("div");
this . okayButtonDivision = documentObjectModel . createNode ("div");
this . pinFormDivision = documentObjectModel . createNode ("div");
this . pinDivision = documentObjectModel . createNode ("div");
this . playerDivision = documentObjectModel . createNode ("div");
this . playerImage = documentObjectModel . createNode ("img");
this . capturedDivision = documentObjectModel . createNode ("div");
this . ownPinArea = documentObjectModel . createNode ("input");
this . opponentPinArea = documentObjectModel . createNode ("input");
this . rulesFormDivision = documentObjectModel . createNode ("div");
this . rulesDivision = documentObjectModel . createNode ("div");
this . lowMessageColor = "#7c7b51";
this . mediumMessageColor = "#495537";
this . highMessageColor = "#553737";
};
this . initialize = function ()
{
this . title = "Checkers";
this . division . id = "CheckerPanel";
this . division . style . position = "absolute";
this . division . style . top = "0px";
this . division . style . left = "0px";
this . division . style . height = (50 * 8) + "px";
this . division . style . width = "175px";
this . division . style . backgroundColor = "#444444";
this . division . style . border = "#000000 2px solid";
this . division . style . overflow = "hidden";
this . titleDivision . id = "CheckerPanel_TitleDivision";
this . titleDivision . style . position = "relative";
this . titleDivision . style . color = "#ffffff";
this . titleDivision . style . backgroundColor = "#222222";
this . titleDivision . style . borderBottom = "#333333 0px solid";
this . titleDivision . style . padding = "8px";
this . titleDivision . style . textAlign = "center";
this . messageDivision . id = "CheckerPanel_MessageDivision";
this . messageDivision . style . position = "relative";
this . messageDivision . style . color = "#ffffff";
this . messageDivision . style . backgroundColor = this . lowMessageColor;
this . messageDivision . style . borderBottom = "#333333 1px solid";
this . messageDivision . style . padding = "8px";
this . messageDivision . style . textAlign = "center";
this . opponentPlayerTypeFormDivision . id = "ReversiPanel_OpponentPlayerTypeFormDivision";
this . opponentPlayerTypeFormDivision . style . position = "relative";
this . opponentPlayerTypeFormDivision . style . color = "#ffffff";
this . opponentPlayerTypeFormDivision . style . backgroundColor = "#555555";
this . opponentPlayerTypeFormDivision . style . borderBottom = "#333333 1px solid";
this . opponentPlayerTypeFormDivision . style . padding = "8px";
this . opponentPlayerTypeFormDivision . style . textAlign = "center";
this . opponentPlayerTypeFormDivision . style . display = "none";
this . okayButtonDivision . id = "CheckerPanel_OkayButtonDivision";
this . okayButtonDivision . that = this;
this . okayButtonDivision . style . position = "relative";
this . okayButtonDivision . style . cursor = "pointer";
this . okayButtonDivision . style . color = "#ffffff";
this . okayButtonDivision . style . backgroundColor = "#555555";
this . okayButtonDivision . style . borderBottom = "#333333 1px solid";
this . okayButtonDivision . style . padding = "8px";
this . okayButtonDivision . style . textAlign = "center";
this . okayButtonDivision . style . display = "none";
this . pinFormDivision . id = "CheckerPanel_pinFormDivision";
this . pinFormDivision . style . position = "relative";
this . pinFormDivision . style . color = "#ffffff";
this . pinFormDivision . style . backgroundColor = "#555555";
this . pinFormDivision . style . borderBottom = "#333333 1px solid";
this . pinFormDivision . style . padding = "8px";
this . pinFormDivision . style . textAlign = "center";
this . pinFormDivision . style . display = "none";
this . ownPinArea . id = "CheckerPanel_ownPinArea";
this . ownPinArea . style . position = "relative";
this . ownPinArea . style . width = "50px";
this . ownPinArea . style . color = "#ffffff";
this . ownPinArea . style . backgroundColor = "#555555";
this . ownPinArea . style . border = "#000000 1px solid";
this . ownPinArea . style . padding = "2px";
this . ownPinArea . style . textAlign = "center";
this . ownPinArea . value = this . ownPin;
this . opponentPinArea . id = "CheckerPanel_opponentPinArea";
this . opponentPinArea . that = this;
this . opponentPinArea . style . position = "relative";
this . opponentPinArea . style . width = "50px";
this . opponentPinArea . style . color = "#000000";
this . opponentPinArea . style . backgroundColor = "#ffffff";
this . opponentPinArea . style . border = "#000000 1px solid";
this . opponentPinArea . style . padding = "2px";
this . opponentPinArea . style . textAlign = "center";
this . opponentPinArea . value = "";
this . ownPinArea . onkeypress = function (keyEvent)
{
var keyCode = context . getKeyCode (keyEvent);
return (false);
};
this . opponentPinArea . onkeypress = function (keyEvent)
{
var keyCode = documentObjectModel . getKeyCode (keyEvent);
// APPROVE CERTAIN CHARACTERS FIRST, REJECT OTHER CHARACTERS LATER.
if (keyCode == 8) return (true); // BACKSPACE
if (keyCode == 48) return (true); // 0
if (keyCode == 49) return (true); // 1
if (keyCode == 50) return (true); // 2
if (keyCode == 51) return (true); // 3
if (keyCode == 52) return (true); // 4
if (keyCode == 53) return (true); // 5
if (keyCode == 54) return (true); // 6
if (keyCode == 55) return (true); // 7
if (keyCode == 56) return (true); // 8
if (keyCode == 57) return (true); // 9
// AT THIS POINT, WE KNOW THE CHARACTER IS NOT ALLOWED, SO DISCARD IT.
return (false);
};
this . opponentPinArea . onkeyup = function ()
{
if (this . value == this . that . ownPinArea . value) this . value = "";
if (this . value . length > 4) this . value = this . value . substring (0, 4);
if (this . value . length == 4)
{
this . that . setOpponentPinDelegate (this . value);
}
};
this . okayButtonDivision . onclick = function ()
{
this . that . hideOkayButton ();
};
this . playerDivision . id = "ReversiPanel_PlayerDivision";
this . playerDivision . style . position = "relative";
this . playerDivision . style . color = "#ffffff";
this . playerDivision . style . backgroundColor = "#444444";
this . playerDivision . style . borderBottom = "#444444 1px solid";
this . playerDivision . style . padding = "8px";
this . playerDivision . style . textAlign = "center";
this . playerDivision . style . display = "block";
var javascriptText;
javascriptText = "";
javascriptText = javascriptText + "javascript: ";
javascriptText = javascriptText + "messageBox . initialize (); ";
javascriptText = javascriptText + "messageBox . addType (\"Events\"); ";
javascriptText = javascriptText + "messageBox . addType (\"Notes\"); ";
javascriptText = javascriptText + "messageBox . addType (\"Warnings\"); ";
javascriptText = javascriptText + "messageBox . addType (\"Errors\"); ";
this . playerImage . that = this;
this . playerImage . src = "/games/checkers/Checkers/pictures/piece.primary.soldier." + (navigator . userAgent . indexOf ("Firefox") != - 1 ? "png" : "gif");
this . playerImage . style . display = "block";
this . playerImage . style . marginLeft = "auto";
this . playerImage . style . marginRight = "auto";
this . playerImage . style . height = "50px";
this . playerImage . style . width = "50px";
this . playerImage . setAttribute ("onclick", javascriptText);
this . pinDivision . id = "CheckerPanel_PinDivision";
this . pinDivision . style . position = "relative";
this . pinDivision . style . color = "#ffffff";
this . pinDivision . style . backgroundColor = "#555555";
this . pinDivision . style . borderBottom = "#333333 1px solid";
this . pinDivision . style . padding = "8px";
this . pinDivision . style . textAlign = "center";
this . pinDivision . style . display = "none";
this . capturedDivision . id = "CheckersPanel_capturedDivision";
this . capturedDivision . style . position = "relative";
this . capturedDivision . style . color = "#aaaaaa";
this . capturedDivision . style . backgroundColor = "#444444";
this . capturedDivision . style . borderBottom = "#444444 1px solid";
this . capturedDivision . style . padding = "8px";
this . capturedDivision . style . textAlign = "center";
this . capturedDivision . style . display = "none";
this . rulesFormDivision . id = "CheckerPanel_RulesFormDivision";
this . rulesFormDivision . style . position = "relative";
this . rulesFormDivision . style . color = "#ffffff";
this . rulesFormDivision . style . backgroundColor = "#555555";
this . rulesFormDivision . style . borderBottom = "#333333 1px solid";
this . rulesFormDivision . style . padding = "8px";
this . rulesFormDivision . style . textAlign = "center";
this . rulesFormDivision . style . display = "none";
this . rulesDivision . id = "CheckerPanel_RulesDivision";
this . rulesDivision . style . position = "relative";
this . rulesDivision . style . color = "#ffffff";
this . rulesDivision . style . backgroundColor = "#555555";
this . rulesDivision . style . borderBottom = "#333333 1px solid";
this . rulesDivision . style . padding = "8px";
this . rulesDivision . style . textAlign = "center";
this . rulesDivision . style . display = "none";
// APPEND THE MAJOR COMPONENTS TO THE PANEL.
documentObjectModel . appendNode (this . getNode (), this . titleDivision);
documentObjectModel . appendNode (this . getNode (), this . messageDivision);
documentObjectModel . appendNode (this . getNode (), this . okayButtonDivision);
documentObjectModel . appendNode (this . getNode (), this . opponentPlayerTypeFormDivision);
documentObjectModel . appendNode (this . getNode (), this . rulesFormDivision);
documentObjectModel . appendNode (this . getNode (), this . rulesDivision);
documentObjectModel . appendNode (this . getNode (), this . pinFormDivision);
documentObjectModel . appendNode (this . getNode (), this . pinDivision);
documentObjectModel . appendNode (this . getNode (), this . playerDivision);
documentObjectModel . appendNode (this . getNode (), this . capturedDivision);
documentObjectModel . appendNode (this . playerDivision, this . playerImage);
// APPEND THE MINOR COMPONENTS TO THE MAJOR COMPONENTS.
var makaylaOption = documentObjectModel . createNode ("img");
var friendOption = documentObjectModel . createNode ("img");
makaylaOption . that = this;
makaylaOption . style . cursor = "pointer";
makaylaOption . opponentPlayerType = "virtual";
makaylaOption . src = "/games/checkers/Checkers/pictures/button.makayla.jpg";
makaylaOption . onclick = function () {this . that . setOpponentPlayerTypeDelegate (this . opponentPlayerType);}
friendOption . that = this;
friendOption . style . cursor = "pointer";
friendOption . opponentPlayerType = "actual";
friendOption . src = "/games/checkers/Checkers/pictures/button.friend.jpg";
friendOption . onclick = function () {this . that . setOpponentPlayerTypeDelegate (this . opponentPlayerType);}
documentObjectModel . appendNode (this . opponentPlayerTypeFormDivision, makaylaOption);
documentObjectModel . appendNode (this . opponentPlayerTypeFormDivision, documentObjectModel . createNode ("br"));
documentObjectModel . appendNode (this . opponentPlayerTypeFormDivision, friendOption);
var internationalOption = documentObjectModel . createNode ("img");
var americanOption = documentObjectModel . createNode ("img");
var brazilianOption = documentObjectModel . createNode ("img");
var canadianOption = documentObjectModel . createNode ("img");
var polishOption = documentObjectModel . createNode ("img");
documentObjectModel . appendNode (this . rulesFormDivision, internationalOption);
documentObjectModel . appendNode (this . rulesFormDivision, documentObjectModel . createNode ("br"));
documentObjectModel . appendNode (this . rulesFormDivision, americanOption);
documentObjectModel . appendNode (this . rulesFormDivision, documentObjectModel . createNode ("br"));
documentObjectModel . appendNode (this . rulesFormDivision, brazilianOption);
documentObjectModel . appendNode (this . rulesFormDivision, documentObjectModel . createNode ("br"));
documentObjectModel . appendNode (this . rulesFormDivision, canadianOption);
documentObjectModel . appendNode (this . rulesFormDivision, documentObjectModel . createNode ("br"));
documentObjectModel . appendNode (this . rulesFormDivision, polishOption);
internationalOption . that = this;
internationalOption . style . cursor = "pointer";
internationalOption . rulesName = "Polish";
internationalOption . src = "/games/checkers/Checkers/pictures/button.international.jpg";
internationalOption . onclick = function () {this . that . setRulesDelegate (this . rulesName);}
americanOption . that = this;
americanOption . style . cursor = "pointer";
americanOption . rulesName = "American";
americanOption . src = "/games/checkers/Checkers/pictures/button.american.jpg";
americanOption . onclick = function () {this . that . setRulesDelegate (this . rulesName);}
brazilianOption . that = this;
brazilianOption . style . cursor = "pointer";
brazilianOption . rulesName = "Brazilian";
brazilianOption . src = "/games/checkers/Checkers/pictures/button.brazilian.jpg";
brazilianOption . onclick = function () {this . that . setRulesDelegate (this . rulesName);}
canadianOption . that = this;
canadianOption . style . cursor = "pointer";
canadianOption . rulesName = "Canadian";
canadianOption . src = "/games/checkers/Checkers/pictures/button.canadian.jpg";
canadianOption . onclick = function () {this . that . setRulesDelegate (this . rulesName);}
polishOption . that = this;
polishOption . style . cursor = "pointer";
polishOption . rulesName = "Polish";
polishOption . src = "/games/checkers/Checkers/pictures/button.polish.jpg";
polishOption . onclick = function () {this . that . setRulesDelegate (this . rulesName);}
documentObjectModel . appendNode (this . titleDivision, documentObjectModel . createTextNode (this . title));
var okayOption;
okayOption = documentObjectModel . createNode ("img");
okayOption . that = this;
okayOption . style . cursor = "pointer";
okayOption . typeText = "okay";
okayOption . src = "/games/checkers/Checkers/pictures/button.okay.jpg";
documentObjectModel . appendNode (this . okayButtonDivision, okayOption);
documentObjectModel . appendNode (this . pinFormDivision, this . ownPinArea);
documentObjectModel . appendNode (this . pinFormDivision, documentObjectModel . createTextNode (" "));
documentObjectModel . appendNode (this . pinFormDivision, this . opponentPinArea);
this . setMessage ("low", "Initializing");
};
this . setMessage = function (level, message)
{
if (level == "low") this . messageDivision . style . backgroundColor = this . lowMessageColor;
if (level == "medium") this . messageDivision . style . backgroundColor = this . mediumMessageColor;
if (level == "high") this . messageDivision . style . backgroundColor = this . highMessageColor;
documentObjectModel . clearNodes (this . messageDivision);
documentObjectModel . appendNode (this . messageDivision, documentObjectModel . createTextNode (message));
};
this . showPlayerMessage = function (player)
{
var message;
var extension;
if (navigator . userAgent . indexOf ("Firefox") != - 1)
extension = "png";
else
extension = "gif";
if (player == "primary")
this . playerImage . src = "/games/checkers/Checkers/pictures/piece.primary.soldier." + extension;
else
this . playerImage . src = "/games/checkers/Checkers/pictures/piece.secondary.soldier." + extension;
this . playerDivision . style . display = "block";
};
this . showCaptures = function (captures)
{
if (captures == null) return;
if (captures . length == 0) return;
var capturedTitle;
capturedTitle = documentObjectModel . createNode ("span");
capturedTitle . style . color = "#ffffff";
documentObjectModel . appendNode (capturedTitle, documentObjectModel . createTextNode ("Captured"));
documentObjectModel . clearNodes (this . capturedDivision);
documentObjectModel . appendNode (this . capturedDivision, capturedTitle);
documentObjectModel . appendNode (this . capturedDivision, documentObjectModel . createNode ("br"));
for (var index = 0; index < captures . length; index = index + 1)
{
documentObjectModel . appendNode (this . capturedDivision, documentObjectModel . createTextNode (captures [index]));
documentObjectModel . appendNode (this . capturedDivision, documentObjectModel . createNode ("br"));
}
this . capturedDivision . style . display = "block";
};
this . hideCaptures = function ()
{
this . capturedDivision . style . display = "none";
};
this . displayOpponentPlayerTypePrompt = function (delegate)
{
this . setOpponentPlayerTypeDelegate = delegate;
this . setMessage ("medium", "Who would you like to challenge?");
this . opponentPlayerTypeFormDivision . style . display = "block";
this . setOpponentPlayerTypeDelegate ("actual");
return;
};
this . hideOpponentPlayerTypePrompt = function ()
{
this . opponentPlayerTypeFormDivision . style . display = "none";
return;
};
this . displayPinPrompt = function (ownPin, delegate)
{
this . ownPin = ownPin;
this . ownPinArea . value = ownPin;
this . setOpponentPinDelegate = delegate;
this . setMessage ("medium", "please exchange codes with your friend");
this . pinFormDivision . style . display = "block";
}
this . showPins = function (ownPin, opponentPin)
{
this . pinFormDivision . style . display = "none";
this . pinDivision . style . display = "block";
documentObjectModel . appendNode (this . pinDivision, documentObjectModel . createTextNode (ownPin + " : " + opponentPin));
}
this . displayRulesPrompt = function (delegate)
{
this . setRulesDelegate = delegate;
this . setMessage ("medium", "please select the rule set");
this . rulesFormDivision . style . display = "block";
}
this . showRulesName = function (rulesName)
{
this . rulesFormDivision . style . display = "none";
this . rulesDivision . style . display = "block";
documentObjectModel . appendNode (this . rulesDivision, documentObjectModel . createTextNode (rulesName + " Checkers"));
}
this . showOkayButton = function (okayButtonInstructions)
{
this . okayButtonInstructions = okayButtonInstructions;
this . okayButtonDivision . style . display = "block";
}
this . hideOkayButton = function ()
{
this . okayButtonDivision . style . display = "none";
setTimeout (this . okayButtonInstructions, 10);
}
this . getNode = function ()
{
return (this . division);
}
this . render = function (renderNode)
{
documentObjectModel . appendNode (renderNode, this . getNode ());
}
this . setRowPixelCount = function (rowPixelCount)
{
this . division . style . height = (rowPixelCount) + "px";
}
this . setBoardSize = function (heightSquareCount, widthSquareCount)
{
for (var rowIndex = 0; rowIndex < heightSquareCount; rowIndex = rowIndex + 1)
{
this . boardState [rowIndex] = new Array ();
}
for (var rowIndex = 0; rowIndex < heightSquareCount; rowIndex = rowIndex + 1)
for (var columnIndex = 0; columnIndex < widthSquareCount; columnIndex = columnIndex + 1)
{
this . boardState [rowIndex] [columnIndex] = new Array ();
}
}
}
function CheckerBoard ()
{
// STATE
this . boardState = null; // AN ARRAY OF CODES THAT DESCRIBES WHAT OCCUPIES EACH SQUARE ON THE BOARD.
this . ownPin = null; // A MULTI-DIGIT PIN THAT IS USED TO IDENTIFY {THIS PLAYER, THIS BOARD INSTANCE}.
this . opponentPin = null; // A MULTI-DIGIT PIN THAT IS USED TO IDENTIFY {THAT PLAYER, THIS BOARD INSTANCE}.
this . currentPlayerPin = null; // A COPY OF THE PIN THAT IS OWNED BY THE PLAYER WHO'S TURN IT IS.
this . rowCount = 0;
this . columnCount = 0;
this . selectedCheckerPiece = null;
this . checkerPieces = null;
// INTERFACE
this . division = null;
this . glassDivision = null;
this . squareDivisions = null;
this . borderThickness = 0;
this . squareHeight = 0;
this . squareWidth = 0;
this . offColor = null;
this . onColor = null;
this . squareBorderColor = null;
this . onStartUpLeftMarker = null;
this . onStartUpRightMarker = null;
this . onStartDownLeftMarker = null;
this . onStartDownRightMarker = null;
this . onStepUpLeftMarkers = null;
this . onStepUpRightMarkers = null;
this . onStepDownLeftMarkers = null;
this . onStepDownRightMarkers = null;
this . onCaptureMarkers = null;
this . onDotMarker = null; // marks captures of the current jump
this . onStopMarker = null;
this . offStartUpLeftMarker = null;
this . offStartUpRightMarker = null;
this . offStartDownLeftMarker = null;
this . offStartDownRightMarker = null;
this . offStepUpLeftMarkers = null;
this . offStepUpRightMarkers = null;
this . offStepDownLeftMarkers = null;
this . offStepDownRightMarkers = null;
this . offCaptureMarkers = null;
this . offDotMarker = null; // marks captures of the current jump
this . offStopMarker = null;
this . cache = null;
this . getMarker = function (imageURL)
{
var division;
division = documentObjectModel . createNode ("div");
division . style . position = "absolute";
division . style . top = "0px";
division . style . left = "0px";
division . style . height = "50px";
division . style . width = "50px";
division . style . backgroundImage = imageURL;
division . style . overflow = "hidden";
division . style . display = "none";
division . style . zIndex = "2";
return (division);
}
this . initiate = function ()
{
this . division = documentObjectModel . createNode ("div");
this . glassDivision = documentObjectModel . createNode ("div");
this . squareDivisions = new Array ();
this . checkerDivisions = new Array ();
this . onStepUpLeftMarkers = new Array ();
this . onStepUpRightMarkers = new Array ();
this . onStepDownLeftMarkers = new Array ();
this . onStepDownRightMarkers = new Array ();
this . onCaptureMarkers = new Array ();
this . onDotMarkers = new Array ();
this . offStepUpLeftMarkers = new Array ();
this . offStepUpRightMarkers = new Array ();
this . offStepDownLeftMarkers = new Array ();
this . offStepDownRightMarkers = new Array ();
this . offCaptureMarkers = new Array ();
this . offDotMarkers = new Array ();
this . onStartUpLeftMarker = this . getMarker ("url(/games/checkers/Checkers/pictures/marker.on.start.up.left.jpg)");
this . onStartUpRightMarker = this . getMarker ("url(/games/checkers/Checkers/pictures/marker.on.start.up.right.jpg)");
this . onStartDownLeftMarker = this . getMarker ("url(/games/checkers/Checkers/pictures/marker.on.start.down.left.jpg)");
this . onStartDownRightMarker = this . getMarker ("url(/games/checkers/Checkers/pictures/marker.on.start.down.right.jpg)");
this . offStartUpLeftMarker = this . getMarker ("url(/games/checkers/Checkers/pictures/marker.off.start.up.left.jpg)");
this . offStartUpRightMarker = this . getMarker ("url(/games/checkers/Checkers/pictures/marker.off.start.up.right.jpg)");
this . offStartDownLeftMarker = this . getMarker ("url(/games/checkers/Checkers/pictures/marker.off.start.down.left.jpg)");
this . offStartDownRightMarker = this . getMarker ("url(/games/checkers/Checkers/pictures/marker.off.start.down.right.jpg)");
this . onStopMarker = this . getMarker ("url(/games/checkers/Checkers/pictures/marker.on.stop.jpg)");
this . offStopMarker = this . getMarker ("url(/games/checkers/Checkers/pictures/marker.off.stop.jpg)");
documentObjectModel . appendNode (this . division, this . onStartUpLeftMarker);
documentObjectModel . appendNode (this . division, this . onStartUpRightMarker);
documentObjectModel . appendNode (this . division, this . onStartDownLeftMarker);
documentObjectModel . appendNode (this . division, this . onStartDownRightMarker);
documentObjectModel . appendNode (this . division, this . offStartUpLeftMarker);
documentObjectModel . appendNode (this . division, this . offStartUpRightMarker);
documentObjectModel . appendNode (this . division, this . offStartDownLeftMarker);
documentObjectModel . appendNode (this . division, this . offStartDownRightMarker);
documentObjectModel . appendNode (this . division, this . onStopMarker);
documentObjectModel . appendNode (this . division, this . offStopMarker);
for (var index = 0; index < 30; index = index + 1)
{
this . onStepUpLeftMarkers [index] = this . getMarker ("url(/games/checkers/Checkers/pictures/marker.on.step.up.left.jpg)");
this . onStepUpRightMarkers [index] = this . getMarker ("url(/games/checkers/Checkers/pictures/marker.on.step.up.right.jpg)");
this . onStepDownLeftMarkers [index] = this . getMarker ("url(/games/checkers/Checkers/pictures/marker.on.step.down.left.jpg)");
this . onStepDownRightMarkers [index] = this . getMarker ("url(/games/checkers/Checkers/pictures/marker.on.step.down.right.jpg)");
this . onCaptureMarkers [index] = this . getMarker ("url(/games/checkers/Checkers/pictures/marker.on.capture.jpg)");
this . onDotMarkers [index] = this . getMarker ("url(/games/checkers/Checkers/pictures/marker.on.dot.jpg)");
this . offStepUpLeftMarkers [index] = this . getMarker ("url(/games/checkers/Checkers/pictures/marker.off.step.up.left.jpg)");
this . offStepUpRightMarkers [index] = this . getMarker ("url(/games/checkers/Checkers/pictures/marker.off.step.up.right.jpg)");
this . offStepDownLeftMarkers [index] = this . getMarker ("url(/games/checkers/Checkers/pictures/marker.off.step.down.left.jpg)");
this . offStepDownRightMarkers [index] = this . getMarker ("url(/games/checkers/Checkers/pictures/marker.off.step.down.right.jpg)");
this . offCaptureMarkers [index] = this . getMarker ("url(/games/checkers/Checkers/pictures/marker.off.capture.jpg)");
this . offDotMarkers [index] = this . getMarker ("url(/games/checkers/Checkers/pictures/marker.off.dot.jpg)");
documentObjectModel . appendNode (this . division, this . onStepUpLeftMarkers [index]);
documentObjectModel . appendNode (this . division, this . onStepUpRightMarkers [index]);
documentObjectModel . appendNode (this . division, this . onStepDownLeftMarkers [index]);
documentObjectModel . appendNode (this . division, this . onStepDownRightMarkers [index]);
documentObjectModel . appendNode (this . division, this . offStepUpLeftMarkers [index]);
documentObjectModel . appendNode (this . division, this . offStepUpRightMarkers [index]);
documentObjectModel . appendNode (this . division, this . offStepDownLeftMarkers [index]);
documentObjectModel . appendNode (this . division, this . offStepDownRightMarkers [index]);
documentObjectModel . appendNode (this . division, this . onCaptureMarkers [index]);
documentObjectModel . appendNode (this . division, this . offCaptureMarkers [index]);
documentObjectModel . appendNode (this . division, this . onDotMarkers [index]);
documentObjectModel . appendNode (this . division, this . offDotMarkers [index]);
}
}
this . initialize = function ()
{
this . rowCount = 8;
this . columnCount = 8;
this . squareHeight = 50;
this . squareWidth = 50;
this . borderThickness = 1;
this . offColor = "#434343";
this . onColor = "#3f3f3f";
this . squareBorderColor = "#353535";
this . division . id = "CheckerBoard";
this . division . style . position = "absolute";
this . division . style . top = "0px";
this . division . style . left = "200px";
this . division . style . backgroundColor = this . squareBorderColor;
this . division . style . border = "#000000 2px solid";
this . division . style . overflow = "hidden";
this . division . style . zIndex = "0";
this . glassDivision . id = "CheckerBoard_Glass";
this . glassDivision . that = this;
this . glassDivision . style . position = "absolute";
this . glassDivision . style . top = "0px";
this . glassDivision . style . left = "0px";
this . glassDivision . style . height = "100%";
this . glassDivision . style . width = "100%";
this . glassDivision . style . backgroundColor = "transparent";
this . glassDivision . style . overflow = "hidden";
this . glassDivision . style . zIndex = "5";
this . checkerPieces = new Array ();
}
this . getNode = function ()
{
return (this . division);
}
this . render = function (renderNode)
{
documentObjectModel . appendNode (this . getNode (), this . glassDivision);
documentObjectModel . appendNode (renderNode, this . getNode ());
}
this . scale = function ()
{
if (! this . division . style . height) this . division . style . height = "0px";
if (this . division . style . height == "") this . division . style . height = "0px";
if (! this . division . style . width) this . division . style . width = "0px";
if (this . division . style . width == "") this . division . style . width = "0px";
if ((this . targetRowPixelCount + "px") == this . division . style . height)
if ((this . targetColumnPixelCount + "px") == this . division . style . width)
return;
var deltaHeight = Math . floor ((this . targetRowPixelCount + parseInt (this . division . style . height, 10)) / 2);
var deltaWidth = Math . floor ((this . targetColumnPixelCount + parseInt (this . division . style . width, 10)) / 2);
if ((deltaHeight > (this . targetRowPixelCount - 2)) && (deltaHeight < (this . targetRowPixelCount + 2))) deltaHeight = this . targetRowPixelCount;
if ((deltaWidth > (this . targetColumnPixelCount - 2)) && (deltaWidth < (this . targetColumnPixelCount + 2))) deltaWidth = this . targetColumnPixelCount;
this . division . style . height = (deltaHeight) + "px";
this . division . style . width = (deltaWidth) + "px";
setTimeout ("checkers . checkerBoard . scale ()", 50);
}
this . clearCheckerPieceNodes = function ()
{
for (var pieceIndex = 0; pieceIndex < this . checkerPieces . length; pieceIndex = pieceIndex + 1)
{
this . getNode () . removeChild (this . checkerPieces [pieceIndex] . getNode ());
this . checkerPieces [pieceIndex] = null;
}
this . checkerPieces = new Array ();
}
this . setBoardState = function (boardState, playerRank)
{
this . clearCheckerPieceNodes ();
this . boardState = null;
this . boardState = boardState;
this . rowCount = this . boardState . length;
this . columnCount = this . boardState [0] . length;
for (var rowIndex = 0; rowIndex < this . rowCount; rowIndex = rowIndex + 1)
for (var columnIndex = 0; columnIndex < this . columnCount; columnIndex = columnIndex + 1)
{
if (! this . squareDivisions [rowIndex])
this . squareDivisions [rowIndex] = new Array ();
if (! this . squareDivisions [rowIndex] [columnIndex])
this . squareDivisions [rowIndex] [columnIndex] = documentObjectModel . createNode ("div");
this . squareDivisions [rowIndex] [columnIndex] . style . position = "absolute";
this . squareDivisions [rowIndex] [columnIndex] . style . top = (rowIndex * (this . squareHeight + this . borderThickness)) + "px";
this . squareDivisions [rowIndex] [columnIndex] . style . left = (columnIndex * (this . squareWidth + this . borderThickness)) + "px";
this . squareDivisions [rowIndex] [columnIndex] . style . height = (this . squareHeight) + "px";
this . squareDivisions [rowIndex] [columnIndex] . style . width = (this . squareWidth) + "px";
this . squareDivisions [rowIndex] [columnIndex] . style . zIndex = "1";
// this . squareDivisions [rowIndex] [columnIndex] . style . border = this . squareBorderColor + " 1px solid";
this . squareDivisions [rowIndex] [columnIndex] . style . backgroundColor = ((rowIndex % 2) == (columnIndex % 2)) ? this . offColor : this . onColor;
this . squareDivisions [rowIndex] [columnIndex] . style . backgroundImage = "";
documentObjectModel . appendNode (this . getNode (), this . squareDivisions [rowIndex] [columnIndex]);
}
this . division . style . height = (this . rowCount * (this . squareHeight + this . borderThickness) - 1) + "px";
this . division . style . width = (this . columnCount * (this . squareWidth + this . borderThickness) - 1) + "px";
// if (navigator . userAgent . indexOf ("MSIE") != - 1)
//
// {
// this . division . style . height = (this . rowCount * (this . squareHeight + this . borderThickness) - 1 + 4) + "px";
// this . division . style . width = (this . columnCount * (this . squareWidth + this . borderThickness) - 1 + 4) + "px";
// }
for (var rowIndex = 0; rowIndex < this . rowCount; rowIndex = rowIndex + 1)
for (var columnIndex = 0; columnIndex < this . columnCount; columnIndex = columnIndex + 1)
{
if (this . boardState [rowIndex] [columnIndex] != null)
{
var checkerPiece = this . boardState [rowIndex] [columnIndex];
this . checkerPieces . push (checkerPiece);
documentObjectModel . appendNode (this . getNode (), checkerPiece . getNode ());
}
}
this . update ();
if (playerRank == "secondary")
this . reverse ();
this . update ();
}
this . update = function ()
{
// STABILIZE THE BOARD BY MAKING SURE THAT EACH CHECKER PIECE IS RENDERED IN THE RIGHT LOCATION ON THE BOARD.
for (var rowIndex = 0; rowIndex < this . rowCount; rowIndex = rowIndex + 1)
for (var columnIndex = 0; columnIndex < this . columnCount; columnIndex = columnIndex + 1)
if (this . boardState [rowIndex] [columnIndex] != null)
{
var checkerPiece = this . boardState [rowIndex] [columnIndex];
checkerPiece . setCoordinates (rowIndex * (this . squareHeight + this . borderThickness), columnIndex * (this . squareWidth + this . borderThickness));
}
// IF THE SELECTED CHECKER IS RETURNED TO IT'S ORIGINAL LOCATION, THEN UNSELECT THE CHECKER PIECE.
// THIS IS NECESSARY SO THAT THE GUEST MAY CHOOSE ANOTHER PIECE TO USE DURING THIS TURN.
if (checkers . midjumpPredicate == 0)
if (this . selectedCheckerPiece)
if (this . selectedCheckerPiece == this . boardState [this . selectedCheckerPiece . fromRowIndex] [this . selectedCheckerPiece . fromColumnIndex])
this . selectedCheckerPiece = null;
}
this . showMarkers = function (trace)
{
var traceArray = trace . split (",");
var rowIndex;
var columnIndex;
var markerIndex;
var onCaptureMarkerIndex = 0;
var onStepUpLeftMarkerIndex = 0;
var onStepUpRightMarkerIndex = 0;
var onStepDownLeftMarkerIndex = 0;
var onStepDownRightMarkerIndex = 0;
var offCaptureMarkerIndex = 0;
var offStepUpLeftMarkerIndex = 0;
var offStepUpRightMarkerIndex = 0;
var offStepDownLeftMarkerIndex = 0;
var offStepDownRightMarkerIndex = 0;
// MARK THE BEGINNING
rowIndex = parseInt (traceArray [0]);
columnIndex = parseInt (traceArray [1]);
var marker;
if ((rowIndex % 2) == (columnIndex % 2))
{
if ((parseInt (traceArray [0]) > parseInt (traceArray [2])) && (parseInt (traceArray [1]) > parseInt (traceArray [3]))) marker = this . offStartUpLeftMarker;
if ((parseInt (traceArray [0]) > parseInt (traceArray [2])) && (parseInt (traceArray [1]) < parseInt (traceArray [3]))) marker = this . offStartUpRightMarker;
if ((parseInt (traceArray [0]) < parseInt (traceArray [2])) && (parseInt (traceArray [1]) > parseInt (traceArray [3]))) marker = this . offStartDownLeftMarker;
if ((parseInt (traceArray [0]) < parseInt (traceArray [2])) && (parseInt (traceArray [1]) < parseInt (traceArray [3]))) marker = this . offStartDownRightMarker;
marker . style . display = "block";
marker . style . top = (rowIndex * (this . squareHeight + this . borderThickness)) + "px";
marker . style . left = (columnIndex * (this . squareHeight + this . borderThickness)) + "px";
}
else
{
if ((parseInt (traceArray [0]) > parseInt (traceArray [2])) && (parseInt (traceArray [1]) > parseInt (traceArray [3]))) marker = this . onStartUpLeftMarker;
if ((parseInt (traceArray [0]) > parseInt (traceArray [2])) && (parseInt (traceArray [1]) < parseInt (traceArray [3]))) marker = this . onStartUpRightMarker;
if ((parseInt (traceArray [0]) < parseInt (traceArray [2])) && (parseInt (traceArray [1]) > parseInt (traceArray [3]))) marker = this . onStartDownLeftMarker;
if ((parseInt (traceArray [0]) < parseInt (traceArray [2])) && (parseInt (traceArray [1]) < parseInt (traceArray [3]))) marker = this . onStartDownRightMarker;
marker . style . display = "block";
marker . style . top = (rowIndex * (this . squareHeight + this . borderThickness)) + "px";
marker . style . left = (columnIndex * (this . squareHeight + this . borderThickness)) + "px";
}
// MARK EACH STEP AND MARK EACH CAPTURE
for (var index = 2; index < (traceArray . length - 2); index = index + 2)
{
rowIndex = parseInt (traceArray [index + 0]);
columnIndex = parseInt (traceArray [index + 1]);
if (traceArray [index + 0] . indexOf ("x") != - 1)
{
if ((rowIndex % 2) == (columnIndex % 2))
{
this . offCaptureMarkers [offCaptureMarkerIndex] . style . display = "block";
this . offCaptureMarkers [offCaptureMarkerIndex] . style . top = (rowIndex * (this . squareHeight + this . borderThickness)) + "px";
this . offCaptureMarkers [offCaptureMarkerIndex] . style . left = (columnIndex * (this . squareHeight + this . borderThickness)) + "px";
offCaptureMarkerIndex = offCaptureMarkerIndex + 1;
}
else
{
this . onCaptureMarkers [onCaptureMarkerIndex] . style . display = "block";
this . onCaptureMarkers [onCaptureMarkerIndex] . style . top = (rowIndex * (this . squareHeight + this . borderThickness)) + "px";
this . onCaptureMarkers [onCaptureMarkerIndex] . style . left = (columnIndex * (this . squareHeight + this . borderThickness)) + "px";
onCaptureMarkerIndex = onCaptureMarkerIndex + 1;
}
}
else
{
if ((rowIndex % 2) == (columnIndex % 2))
{
if ((parseInt (traceArray [index + 0]) > parseInt (traceArray [index + 4])) && (parseInt (traceArray [index + 1]) > parseInt (traceArray [index + 5]))) marker = this . offStepUpLeftMarkers;
if ((parseInt (traceArray [index + 0]) > parseInt (traceArray [index + 4])) && (parseInt (traceArray [index + 1]) < parseInt (traceArray [index + 5]))) marker = this . offStepUpRightMarkers;
if ((parseInt (traceArray [index + 0]) < parseInt (traceArray [index + 4])) && (parseInt (traceArray [index + 1]) > parseInt (traceArray [index + 5]))) marker = this . offStepDownLeftMarkers;
if ((parseInt (traceArray [index + 0]) < parseInt (traceArray [index + 4])) && (parseInt (traceArray [index + 1]) < parseInt (traceArray [index + 5]))) marker = this . offStepDownRightMarkers;
if ((parseInt (traceArray [index + 0]) > parseInt (traceArray [index + 4])) && (parseInt (traceArray [index + 1]) > parseInt (traceArray [index + 5]))) markerIndex = offStepUpLeftMarkerIndex;
if ((parseInt (traceArray [index + 0]) > parseInt (traceArray [index + 4])) && (parseInt (traceArray [index + 1]) < parseInt (traceArray [index + 5]))) markerIndex = offStepUpRightMarkerIndex;
if ((parseInt (traceArray [index + 0]) < parseInt (traceArray [index + 4])) && (parseInt (traceArray [index + 1]) > parseInt (traceArray [index + 5]))) markerIndex = offStepDownLeftMarkerIndex;
if ((parseInt (traceArray [index + 0]) < parseInt (traceArray [index + 4])) && (parseInt (traceArray [index + 1]) < parseInt (traceArray [index + 5]))) markerIndex = offStepDownRightMarkerIndex;
marker [markerIndex] . style . display = "block";
marker [markerIndex] . style . top = (rowIndex * (this . squareHeight + this . borderThickness)) + "px";
marker [markerIndex] . style . left = (columnIndex * (this . squareHeight + this . borderThickness)) + "px";
if ((parseInt (traceArray [index + 0]) > parseInt (traceArray [index + 4])) && (parseInt (traceArray [index + 1]) > parseInt (traceArray [index + 5]))) offStepUpLeftMarkerIndex = offStepUpLeftMarkerIndex + 1;
if ((parseInt (traceArray [index + 0]) > parseInt (traceArray [index + 4])) && (parseInt (traceArray [index + 1]) < parseInt (traceArray [index + 5]))) offStepUpRightMarkerIndex = offStepUpRightMarkerIndex + 1;
if ((parseInt (traceArray [index + 0]) < parseInt (traceArray [index + 4])) && (parseInt (traceArray [index + 1]) > parseInt (traceArray [index + 5]))) offStepDownLeftMarkerIndex = offStepDownLeftMarkerIndex + 1;
if ((parseInt (traceArray [index + 0]) < parseInt (traceArray [index + 4])) && (parseInt (traceArray [index + 1]) < parseInt (traceArray [index + 5]))) offStepDownRightMarkerIndex = offStepDownRightMarkerIndex + 1;
}
else
{
if ((parseInt (traceArray [index + 0]) > parseInt (traceArray [index + 4])) && (parseInt (traceArray [index + 1]) > parseInt (traceArray [index + 5]))) marker = this . onStepUpLeftMarkers;
if ((parseInt (traceArray [index + 0]) > parseInt (traceArray [index + 4])) && (parseInt (traceArray [index + 1]) < parseInt (traceArray [index + 5]))) marker = this . onStepUpRightMarkers; // alert ("up right: " + trace + " : " + traceArray [rowIndex + 0] + ", " + traceArray [columnIndex + 0] + ", " + traceArray [rowIndex + 4] + ", " + traceArray [columnIndex + 4]);}
if ((parseInt (traceArray [index + 0]) < parseInt (traceArray [index + 4])) && (parseInt (traceArray [index + 1]) > parseInt (traceArray [index + 5]))) marker = this . onStepDownLeftMarkers; // alert ("down left: " + trace + " : " + traceArray [rowIndex + 0] + ", " + traceArray [columnIndex + 0] + ", " + traceArray [rowIndex + 4] + ", " + traceArray [columnIndex + 4]);}
if ((parseInt (traceArray [index + 0]) < parseInt (traceArray [index + 4])) && (parseInt (traceArray [index + 1]) < parseInt (traceArray [index + 5]))) marker = this . onStepDownRightMarkers;
if ((parseInt (traceArray [index + 0]) > parseInt (traceArray [index + 4])) && (parseInt (traceArray [index + 1]) > parseInt (traceArray [index + 5]))) markerIndex = onStepUpLeftMarkerIndex;
if ((parseInt (traceArray [index + 0]) > parseInt (traceArray [index + 4])) && (parseInt (traceArray [index + 1]) < parseInt (traceArray [index + 5]))) markerIndex = onStepUpRightMarkerIndex;
if ((parseInt (traceArray [index + 0]) < parseInt (traceArray [index + 4])) && (parseInt (traceArray [index + 1]) > parseInt (traceArray [index + 5]))) markerIndex = onStepDownLeftMarkerIndex;
if ((parseInt (traceArray [index + 0]) < parseInt (traceArray [index + 4])) && (parseInt (traceArray [index + 1]) < parseInt (traceArray [index + 5]))) markerIndex = onStepDownRightMarkerIndex;
marker [markerIndex] . style . display = "block";
marker [markerIndex] . style . top = (rowIndex * (this . squareHeight + this . borderThickness)) + "px";
marker [markerIndex] . style . left = (columnIndex * (this . squareHeight + this . borderThickness)) + "px";
if ((parseInt (traceArray [index + 0]) > parseInt (traceArray [index + 4])) && (parseInt (traceArray [index + 1]) > parseInt (traceArray [index + 5]))) onStepUpLeftMarkerIndex = onStepUpLeftMarkerIndex + 1;
if ((parseInt (traceArray [index + 0]) > parseInt (traceArray [index + 4])) && (parseInt (traceArray [index + 1]) < parseInt (traceArray [index + 5]))) onStepUpRightMarkerIndex = onStepUpRightMarkerIndex + 1;
if ((parseInt (traceArray [index + 0]) < parseInt (traceArray [index + 4])) && (parseInt (traceArray [index + 1]) > parseInt (traceArray [index + 5]))) onStepDownLeftMarkerIndex = onStepDownLeftMarkerIndex + 1;
if ((parseInt (traceArray [index + 0]) < parseInt (traceArray [index + 4])) && (parseInt (traceArray [index + 1]) < parseInt (traceArray [index + 5]))) onStepDownRightMarkerIndex = onStepDownRightMarkerIndex + 1;
}
}
}
// MARK THE ENDING
rowIndex = parseInt (traceArray [traceArray . length - 2]);
columnIndex = parseInt (traceArray [traceArray . length - 1]);
if ((rowIndex % 2) == (columnIndex % 2))
{
this . offStopMarker . style . display = "block";
this . offStopMarker . style . top = (rowIndex * (this . squareHeight + this . borderThickness)) + "px";
this . offStopMarker . style . left = (columnIndex * (this . squareHeight + this . borderThickness)) + "px";
}
else
{
this . onStopMarker . style . display = "block";
this . onStopMarker . style . top = (rowIndex * (this . squareHeight + this . borderThickness)) + "px";
this . onStopMarker . style . left = (columnIndex * (this . squareHeight + this . borderThickness)) + "px";
}
}
this . showJumpMarkers = function (trace)
{
if (trace != null)
{
var traceArray = trace . split (",");
var rowIndex;
var columnIndex;
var markerIndex;
var onDotMarkerIndex = 0;
var offDotMarkerIndex = 0;
// MARK EACH CAPTURE
for (var index = 0; index < (traceArray . length - 0); index = index + 2)
{
rowIndex = parseInt (traceArray [index + 0]);
columnIndex = parseInt (traceArray [index + 1]);
if (traceArray [index + 0] . indexOf ("x") != - 1)
{
if ((rowIndex % 2) == (columnIndex % 2))
{
this . offDotMarkers [offDotMarkerIndex] . style . display = "block";
this . offDotMarkers [offDotMarkerIndex] . style . top = (rowIndex * (this . squareHeight + this . borderThickness)) + "px";
this . offDotMarkers [offDotMarkerIndex] . style . left = (columnIndex * (this . squareHeight + this . borderThickness)) + "px";
offDotMarkerIndex = offDotMarkerIndex + 1;
}
else
{
this . onDotMarkers [onDotMarkerIndex] . style . display = "block";
this . onDotMarkers [onDotMarkerIndex] . style . top = (rowIndex * (this . squareHeight + this . borderThickness)) + "px";
this . onDotMarkers [onDotMarkerIndex] . style . left = (columnIndex * (this . squareHeight + this . borderThickness)) + "px";
onDotMarkerIndex = onDotMarkerIndex + 1;
}
}
}
}
}
this . hideMarkers = function ()
{
for (var index = 0; index < 30; index = index + 1)
{
this . offStepUpLeftMarkers [index] . style . display = "none";
this . offStepUpRightMarkers [index] . style . display = "none";
this . offStepDownLeftMarkers [index] . style . display = "none";
this . offStepDownRightMarkers [index] . style . display = "none";
this . offCaptureMarkers [index] . style . display = "none";
this . offDotMarkers [index] . style . display = "none";
this . onStepUpLeftMarkers [index] . style . display = "none";
this . onStepUpRightMarkers [index] . style . display = "none";
this . onStepDownLeftMarkers [index] . style . display = "none";
this . onStepDownRightMarkers [index] . style . display = "none";
this . onCaptureMarkers [index] . style . display = "none";
this . onDotMarkers [index] . style . display = "none";
}
this . offStartUpLeftMarker . style . display = "none";
this . offStartUpRightMarker . style . display = "none";
this . offStartDownLeftMarker . style . display = "none";
this . offStartDownRightMarker . style . display = "none";
this . offStopMarker . style . display = "none";
this . onStartUpLeftMarker . style . display = "none";
this . onStartUpRightMarker . style . display = "none";
this . onStartDownLeftMarker . style . display = "none";
this . onStartDownRightMarker . style . display = "none";
this . onStopMarker . style . display = "none";
}
this . reverse = function ()
{
for (var rowIndex = 0; rowIndex < (this . rowCount / 2); rowIndex = rowIndex + 1)
for (var columnIndex = 0; columnIndex < this . columnCount; columnIndex = columnIndex + 1)
{
var checkerPiece0 = this . boardState [rowIndex] [columnIndex];
var checkerPiece1 = this . boardState [this . rowCount - 1 - rowIndex] [this . columnCount - 1 - columnIndex];
if (checkerPiece0) checkerPiece0 . reverse ();
if (checkerPiece1) checkerPiece1 . reverse ();
this . boardState [rowIndex] [columnIndex] = checkerPiece1;
this . boardState [this . rowCount - 1 - rowIndex] [this . columnCount - 1 - columnIndex] = checkerPiece0;
}
}
this . connectEventCues = function ()
{
this . glassDivision . onmousedown = this . cursorDown;
// this . glassDivision . onmouseup = this . cursorUp;
}
this . disconnectEventCues = function ()
{
this . glassDivision . onmousedown = null;
this . glassDivision . onmousemove = null;
this . glassDivision . onmouseup = null;
}
this . cursorDown = function (cursorEvent)
{
var squareRowIndex = Math . floor (documentObjectModel . getLayerY (cursorEvent) / 51);
var squareColumnIndex = Math . floor (documentObjectModel . getLayerX (cursorEvent) / 51);
if (squareRowIndex < 0) return;
if (squareRowIndex >= this . that . rowCount) return;
if (squareColumnIndex < 0) return;
if (squareColumnIndex >= this . that . columnCount) return;
var targetedCheckerPiece = this . that . boardState [squareRowIndex] [squareColumnIndex];
if (targetedCheckerPiece != null)
if (targetedCheckerPiece . getOwnPredicate () == 1)
if ((this . that . selectedCheckerPiece == null) || (this . that . selectedCheckerPiece == targetedCheckerPiece))
{
this . that . selectedCheckerPiece = targetedCheckerPiece;
this . that . selectedCheckerPiece . setCoordinates (documentObjectModel . getLayerY (cursorEvent) - Math . floor (this . that . selectedCheckerPiece . getHeight () / 2), documentObjectModel . getLayerX (cursorEvent) - Math . floor (this . that . selectedCheckerPiece . getWidth () / 2));
this . that . selectedCheckerPiece . elevate ();
this . that . selectedCheckerPiece . fromRowIndex = squareRowIndex;
this . that . selectedCheckerPiece . fromColumnIndex = squareColumnIndex;
this . onmousemove = this . that . cursorMove;
this . onmouseup = this . that . cursorUp;
}
cursorEvent . stopPropagation ();
cursorEvent . preventDefault ();
return;
};
this . cursorMove = function (cursorEvent)
{
if (this . that . selectedCheckerPiece)
{
this . that . selectedCheckerPiece . setCoordinates (documentObjectModel . getLayerY (cursorEvent) - Math . floor (this . that . selectedCheckerPiece . getHeight () / 2), documentObjectModel . getLayerX (cursorEvent) - Math . floor (this . that . selectedCheckerPiece . getWidth () / 2));
}
cursorEvent . stopPropagation ();
cursorEvent . preventDefault ();
return;
};
this . cursorUp = function (cursorEvent)
{
this . onmousemove = null;
if (this . that . selectedCheckerPiece)
{
var toRowIndex = Math . floor (documentObjectModel . getLayerY (cursorEvent) / 51);
var toColumnIndex = Math . floor (documentObjectModel . getLayerX (cursorEvent) / 51);
var fromRowIndex = this . that . selectedCheckerPiece ? this . that . selectedCheckerPiece . fromRowIndex : 0;
var fromColumnIndex = this . that . selectedCheckerPiece ? this . that . selectedCheckerPiece . fromColumnIndex : 0;
if (toRowIndex < 0) {this . that . update (); return;}
if (toRowIndex >= this . that . rowCount) {this . that . update (); return;}
if (toColumnIndex < 0) {this . that . update (); return;}
if (toColumnIndex >= this . that . columnCount) {this . that . update (); return;}
var targetedCheckerPiece = this . that . boardState [toRowIndex] [toColumnIndex];
if (checkers . midjumpPredicate == 1)
if (this . that . selectedCheckerPiece != this . that . jumpingCheckerPiece)
{
this . that . selectedCheckerPiece = null;
this . that . that . checkerPanel . setMessage ("high", "You must continue with the same piece until your turn is over.");
this . that . update ();
return;
}
if (this . that . selectedCheckerPiece)
if (targetedCheckerPiece == null)
{
if (this . that . that . rules . getLegalMovePredicate ((checkers . ownMove ? checkers . ownMove : fromRowIndex + "," + fromColumnIndex) + "," + toRowIndex + "," + toColumnIndex))
{
this . that . jumpingCheckerPiece = this . that . selectedCheckerPiece;
this . that . selectedCheckerPiece = null;
this . that . that . checkerPanel . setMessage ("medium", "Your turn.");
this . that . that . setMove (fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex);
}
else if (this . that . that . rules . getIllegalMovePredicate ((checkers . ownMove ? checkers . ownMove : fromRowIndex + "," + fromColumnIndex) + "," + toRowIndex + "," + toColumnIndex))
{
if (checkers . midjumpPredicate == 0)
this . that . selectedCheckerPiece = null;
this . that . that . checkerPanel . setMessage ("high", "You must take the jump with the most captures.");
}
else
{
this . that . selectedCheckerPiece = null;
this . that . that . checkerPanel . setMessage ("high", "That move is not allowed.");
}
}
}
this . that . update ();
cursorEvent . stopPropagation ();
cursorEvent . preventDefault ();
return;
};
}
// MICHAEL MCELROY, MICHAELMCELROY.NET
// COPYRIGHT, 2006, ALL RIGHTS RESERVED
Kayla = function ()
{
this . initialize = function ()
{
checkers . getMove_Override = checkers . getMove;
checkers . getMove = this . play;
return;
};
this . play = function (event)
{
checkers . opponentMove = kayla . getPreferredMove (); // Remember: Kayla is the opponent.
checkers . getMove_Override ();
return (false);
};
this . getPreferredMove = function ()
{
var preferredMove = null;
var moves = null;
moves = checkers . rules . legalMoves;
jumps = checkers . rules . legalJumps;
if (moves . length > 0)
{
preferredMove = checkers . rules . legalMoves [Math . floor (Math . random () * checkers . rules . legalMoves . length)];
}
else
{
preferredMove = checkers . rules . legalJumps [Math . floor (Math . random () * checkers . rules . legalJumps . length)];
}
return (preferredMove);
};
};
function Node ()
{
}
function Rules ()
{
// STATE
this . boardState = null;
this . rowCount = 0;
this . columnCount = 0;
this . initiate = function ()
{
this . boardState = new Array ();
this . rowCount = 8;
this . columnCount = 8;
}
this . initialize = function ()
{
for (var rowIndex = 0; rowIndex < this . rowCount; rowIndex = rowIndex + 1)
for (var columnIndex = 0; columnIndex < this . columnCount; columnIndex = columnIndex + 1)
{
if (! this . boardState [rowIndex])
{
this . boardState [rowIndex] = new Array ();
}
this . boardState [rowIndex] [columnIndex] = null;
if ((rowIndex < 3) && ((rowIndex % 2) != (columnIndex % 2)))
{
var checkerPiece = null;
checkerPiece = new CheckerPiece ();
checkerPiece . initiate ();
checkerPiece . initialize ();
checkerPiece . setCoordinates (rowIndex * checkerPiece . getHeight () + rowIndex, columnIndex * checkerPiece . getWidth () + columnIndex);
checkerPiece . setOwnPredicate (0);
this . boardState [rowIndex] [columnIndex] = checkerPiece;
}
if ((rowIndex > 4) && ((rowIndex % 2) != (columnIndex % 2)))
{
var checkerPiece = null;
checkerPiece = new CheckerPiece ();
checkerPiece . initiate ();
checkerPiece . initialize ();
checkerPiece . setCoordinates (rowIndex * checkerPiece . getHeight () + rowIndex, columnIndex * checkerPiece . getWidth () + columnIndex);
checkerPiece . setOwnPredicate (1);
this . boardState [rowIndex] [columnIndex] = checkerPiece;
}
}
}
this . getBoardState = function ()
{
return (this . boardState);
}
this . getRowCount = function ()
{
return (this . rowCount);
}
this . getColumnCount = function ()
{
return (this . columnCount);
}
}
function AmericanRules ()
{
// STATE
this . boardState = null;
this . rowCount = 0;
this . columnCount = 0;
this . illegalMoves = null;
this . illegalJumps = null;
this . legalMoves = null;
this . legalJumps = null;
this . initiate = function ()
{
this . boardState = new Array ();
this . rowCount = 8;
this . columnCount = 8;
}
this . initialize = function ()
{
for (var rowIndex = 0; rowIndex < this . rowCount; rowIndex = rowIndex + 1)
for (var columnIndex = 0; columnIndex < this . columnCount; columnIndex = columnIndex + 1)
{
if (! this . boardState [rowIndex])
{
this . boardState [rowIndex] = new Array ();
}
this . boardState [rowIndex] [columnIndex] = null;
if ((rowIndex < 3) && ((rowIndex % 2) != (columnIndex % 2)))
{
var checkerPiece = null;
checkerPiece = new CheckerPiece ();
checkerPiece . initiate ();
checkerPiece . initialize ();
checkerPiece . setCoordinates (rowIndex * checkerPiece . getHeight () + rowIndex, columnIndex * checkerPiece . getWidth () + columnIndex);
checkerPiece . setOwnPredicate (0);
this . boardState [rowIndex] [columnIndex] = checkerPiece;
}
if ((rowIndex > 4) && ((rowIndex % 2) != (columnIndex % 2)))
{
var checkerPiece = null;
checkerPiece = new CheckerPiece ();
checkerPiece . initiate ();
checkerPiece . initialize ();
checkerPiece . setCoordinates (rowIndex * checkerPiece . getHeight () + rowIndex, columnIndex * checkerPiece . getWidth () + columnIndex);
checkerPiece . setOwnPredicate (1);
this . boardState [rowIndex] [columnIndex] = checkerPiece;
}
}
}
this . getBoardState = function ()
{
return (this . boardState);
}
this . getRowCount = function ()
{
return (this . rowCount);
}
this . getColumnCount = function ()
{
return (this . columnCount);
}
this . getTranslatedMove = function (move)
{
var moveArray = move . split (",");
move = this . rowCount - 1 - moveArray [0];
for (var index = 1; index < moveArray . length; index = index + 1)
move = move + "," + ((index % 2 ? this . columnCount - 1 : this . rowCount - 1) - moveArray [index]);
return (move);
}
this . evaluate = function (player)
{
var matchCode = (player == "own") ? 1 : 0;
// FIND THE VALID REGULAR-MOVES.
this . illegalMoves = new Array ();
this . legalMoves = new Array ();
for (var rowIndex = 0; rowIndex < this . rowCount; rowIndex = rowIndex + 1)
for (var columnIndex = 0; columnIndex < this . columnCount; columnIndex = columnIndex + 1)
if (this . boardState [rowIndex] [columnIndex])
if (this . boardState [rowIndex] [columnIndex] . getOwnPredicate () == matchCode)
{
var node = new Node ();
node . ownerNode = null;
node . upperLeftNode = null;
node . upperRightNode = null;
node . lowerLeftNode = null;
node . lowerRightNode = null;
node . rowIndex = rowIndex;
node . columnIndex = columnIndex;
node . originalRowIndex = rowIndex;
node . originalColumnIndex = columnIndex;
node . capturePath = "";
node . move = rowIndex + "," + columnIndex;
this . scanMoves (player, node);
}
// FIND THE VALID JUMP-MOVES.
this . illegalJumps = new Array ();
this . legalJumps = new Array ();
for (var rowIndex = 0; rowIndex < this . rowCount; rowIndex = rowIndex + 1)
for (var columnIndex = 0; columnIndex < this . columnCount; columnIndex = columnIndex + 1)
if (this . boardState [rowIndex] [columnIndex])
if (this . boardState [rowIndex] [columnIndex] . getOwnPredicate () == matchCode)
{
var node = new Node ();
node . ownerNode = null;
node . upperLeftNode = null;
node . upperRightNode = null;
node . lowerLeftNode = null;
node . lowerRightNode = null;
node . rowIndex = rowIndex;
node . columnIndex = columnIndex;
node . originalRowIndex = rowIndex;
node . originalColumnIndex = columnIndex;
node . capturePath = "";
node . move = rowIndex + "," + columnIndex;
this . scanJumps (player, node);
}
// IF THERE ARE ANY VALID JUMP-MOVES, THEN ERASE THE REGULAR-MOVES.
if (this . legalJumps . length > 0)
{
this . illegalMoves = this . legalMoves;
this . legalMoves = new Array ();
}
// RECORD THE VALID MOVES/JUMPS IN THE MESSAGE BOX UNDER 'NOTES'.
if (player == "own")
if (this . legalMoves . length > 0)
{
var list = "";
for (var index = 0; index < this . legalMoves . length; index = index + 1)
list = list + this . legalMoves [index] + "\n";
messageBox . addMessage ("Notes", "Available Moves\n\n" + list);
}
if (player == "own")
if (this . legalJumps . length > 0)
{
var list = "";
for (var index = 0; index < this . legalJumps . length; index = index + 1)
list = list + this . legalJumps [index] + "\n";
messageBox . addMessage ("Notes", "Available Jumps\n\n" + list);
}
}
this . getMoveCount = function ()
{
return (this . legalMoves . length + this . legalJumps . length);
}
this . scanMoves = function (player, node)
{
var matchCode = (player == "own") ? 1 : 0;
var fromRowIndex;
var fromColumnIndex;
var toRowIndex;
var toColumnIndex;
fromRowIndex = node . rowIndex;
fromColumnIndex = node . columnIndex;
// SCAN UPPER-LEFT
if (player == "own")
{
toRowIndex = fromRowIndex - 1;
toColumnIndex = fromColumnIndex - 1;
}
else
{
toRowIndex = fromRowIndex + 1;
toColumnIndex = fromColumnIndex + 1;
}
if (toRowIndex >= 0)
if (toRowIndex < this . rowCount)
if (toColumnIndex >= 0)
if (toColumnIndex < this . columnCount)
if (this . boardState [toRowIndex] [toColumnIndex] == null)
this . legalMoves . push (fromRowIndex + "," + fromColumnIndex + "," + toRowIndex + "," + toColumnIndex);
// SCAN UPPER-RIGHT
if (player == "own")
{
toRowIndex = fromRowIndex - 1;
toColumnIndex = fromColumnIndex + 1;
}
else
{
toRowIndex = fromRowIndex + 1;
toColumnIndex = fromColumnIndex - 1;
}
if (toRowIndex >= 0)
if (toRowIndex < this . rowCount)
if (toColumnIndex >= 0)
if (toColumnIndex < this . columnCount)
if (this . boardState [toRowIndex] [toColumnIndex] == null)
this . legalMoves . push (fromRowIndex + "," + fromColumnIndex + "," + toRowIndex + "," + toColumnIndex);
// SCAN LOWER-LEFT IF KING
if (player == "own")
{
toRowIndex = fromRowIndex + 1;
toColumnIndex = fromColumnIndex - 1;
}
else
{
toRowIndex = fromRowIndex - 1;
toColumnIndex = fromColumnIndex + 1;
}
if (toRowIndex >= 0)
if (toRowIndex < this . rowCount)
if (toColumnIndex >= 0)
if (toColumnIndex < this . columnCount)
if (this . boardState [toRowIndex] [toColumnIndex] == null)
if (this . boardState [fromRowIndex] [fromColumnIndex] . getKingPredicate () == 1)
this . legalMoves . push (fromRowIndex + "," + fromColumnIndex + "," + toRowIndex + "," + toColumnIndex);
// SCAN LOWER-RIGHT IF KING
if (player == "own")
{
toRowIndex = fromRowIndex + 1;
toColumnIndex = fromColumnIndex + 1;
}
else
{
toRowIndex = fromRowIndex - 1;
toColumnIndex = fromColumnIndex - 1;
}
if (toRowIndex >= 0)
if (toRowIndex < this . rowCount)
if (toColumnIndex >= 0)
if (toColumnIndex < this . columnCount)
if (this . boardState [toRowIndex] [toColumnIndex] == null)
if (this . boardState [fromRowIndex] [fromColumnIndex] . getKingPredicate () == 1)
this . legalMoves . push (fromRowIndex + "," + fromColumnIndex + "," + toRowIndex + "," + toColumnIndex);
}
this . scanJumps = function (player, node)
{
var matchCode = (player == "own") ? 1 : 0;
var fromRowIndex;
var fromColumnIndex;
var toRowIndex;
var toColumnIndex;
fromRowIndex = node . rowIndex;
fromColumnIndex = node . columnIndex;
// SCAN UPPER-LEFT
if (player == "own")
{
toRowIndex = fromRowIndex - 2;
toColumnIndex = fromColumnIndex - 2;
captureRowIndex = fromRowIndex - 1;
captureColumnIndex = fromColumnIndex - 1;
}
else
{
toRowIndex = fromRowIndex + 2;
toColumnIndex = fromColumnIndex + 2;
captureRowIndex = fromRowIndex + 1;
captureColumnIndex = fromColumnIndex + 1;
}
if (toRowIndex >= 0)
if (toRowIndex < this . rowCount)
if (toColumnIndex >= 0)
if (toColumnIndex < this . columnCount)
if (this . boardState [toRowIndex] [toColumnIndex] == null)
if (this . boardState [captureRowIndex] [captureColumnIndex] != null)
if (this . boardState [captureRowIndex] [captureColumnIndex] . getOwnPredicate () != matchCode)
if (node . capturePath . indexOf ("[" + captureRowIndex + "," + captureColumnIndex + "]") == - 1)
{
// SEARCH FOR SUCCESSIVE JUMPS
node . upperLeftNode = new Node ();
node . upperLeftNode . ownerNode = node;
node . upperLeftNode . upperLeftNode = null;
node . upperLeftNode . upperRightNode = null;
node . upperLeftNode . lowerLeftNode = null;
node . upperLeftNode . lowerRightNode = null;
node . upperLeftNode . rowIndex = toRowIndex;
node . upperLeftNode . columnIndex = toColumnIndex;
node . upperLeftNode . originalRowIndex = node . originalRowIndex;
node . upperLeftNode . originalColumnIndex = node . originalColumnIndex;
node . upperLeftNode . capturePath = node . capturePath + "[" + captureRowIndex + "," + captureColumnIndex + "]";
node . upperLeftNode . move = node . move + "," + toRowIndex + "," + toColumnIndex;
this . scanJumps (player, node . upperLeftNode);
}
// SCAN UPPER-RIGHT
if (player == "own")
{
toRowIndex = fromRowIndex - 2;
toColumnIndex = fromColumnIndex + 2;
captureRowIndex = fromRowIndex - 1;
captureColumnIndex = fromColumnIndex + 1;
}
else
{
toRowIndex = fromRowIndex + 2;
toColumnIndex = fromColumnIndex - 2;
captureRowIndex = fromRowIndex + 1;
captureColumnIndex = fromColumnIndex - 1;
}
if (toRowIndex >= 0)
if (toRowIndex < this . rowCount)
if (toColumnIndex >= 0)
if (toColumnIndex < this . columnCount)
if (this . boardState [toRowIndex] [toColumnIndex] == null)
if (this . boardState [captureRowIndex] [captureColumnIndex] != null)
if (this . boardState [captureRowIndex] [captureColumnIndex] . getOwnPredicate () != matchCode)
if (node . capturePath . indexOf ("[" + captureRowIndex + "," + captureColumnIndex + "]") == - 1)
{
// SEARCH FOR SUCCESSIVE JUMPS
node . upperRightNode = new Node ();
node . upperRightNode . ownerNode = node;
node . upperRightNode . upperLeftNode = null;
node . upperRightNode . upperRightNode = null;
node . upperRightNode . lowerLeftNode = null;
node . upperRightNode . lowerRightNode = null;
node . upperRightNode . rowIndex = toRowIndex;
node . upperRightNode . columnIndex = toColumnIndex;
node . upperRightNode . originalRowIndex = node . originalRowIndex;
node . upperRightNode . originalColumnIndex = node . originalColumnIndex;
node . upperRightNode . capturePath = node . capturePath + "[" + captureRowIndex + "," + captureColumnIndex + "]";
node . upperRightNode . move = node . move + "," + toRowIndex + "," + toColumnIndex;
this . scanJumps (player, node . upperRightNode);
}
// SCAN LOWER-LEFT IF KING
if (player == "own")
{
toRowIndex = fromRowIndex + 2;
toColumnIndex = fromColumnIndex - 2;
captureRowIndex = fromRowIndex + 1;
captureColumnIndex = fromColumnIndex - 1;
}
else
{
toRowIndex = fromRowIndex - 2;
toColumnIndex = fromColumnIndex + 2;
captureRowIndex = fromRowIndex - 1;
captureColumnIndex = fromColumnIndex + 1;
}
if (toRowIndex >= 0)
if (toRowIndex < this . rowCount)
if (toColumnIndex >= 0)
if (toColumnIndex < this . columnCount)
if (this . boardState [toRowIndex] [toColumnIndex] == null)
if (this . boardState [captureRowIndex] [captureColumnIndex] != null)
if (this . boardState [captureRowIndex] [captureColumnIndex] . getOwnPredicate () != matchCode)
if (this . boardState [node . originalRowIndex] [node . originalColumnIndex])
if (this . boardState [node . originalRowIndex] [node . originalColumnIndex] . getKingPredicate () == 1)
if (node . capturePath . indexOf ("[" + captureRowIndex + "," + captureColumnIndex + "]") == - 1)
{
// SEARCH FOR SUCCESSIVE JUMPS
node . lowerLeftNode = new Node ();
node . lowerLeftNode . ownerNode = node;
node . lowerLeftNode . upperLeftNode = null;
node . lowerLeftNode . upperRightNode = null;
node . lowerLeftNode . lowerLeftNode = null;
node . lowerLeftNode . lowerRightNode = null;
node . lowerLeftNode . rowIndex = toRowIndex;
node . lowerLeftNode . columnIndex = toColumnIndex;
node . lowerLeftNode . originalRowIndex = node . originalRowIndex;
node . lowerLeftNode . originalColumnIndex = node . originalColumnIndex;
node . lowerLeftNode . capturePath = node . capturePath + "[" + captureRowIndex + "," + captureColumnIndex + "]";
node . lowerLeftNode . move = node . move + "," + toRowIndex + "," + toColumnIndex;
this . scanJumps (player, node . lowerLeftNode);
}
// SCAN LOWER-RIGHT IF KING
if (player == "own")
{
toRowIndex = fromRowIndex + 2;
toColumnIndex = fromColumnIndex + 2;
captureRowIndex = fromRowIndex + 1;
captureColumnIndex = fromColumnIndex + 1;
}
else
{
toRowIndex = fromRowIndex - 2;
toColumnIndex = fromColumnIndex - 2;
captureRowIndex = fromRowIndex - 1;
captureColumnIndex = fromColumnIndex - 1;
}
if (toRowIndex >= 0)
if (toRowIndex < this . rowCount)
if (toColumnIndex >= 0)
if (toColumnIndex < this . columnCount)
if (this . boardState [toRowIndex] [toColumnIndex] == null)
if (this . boardState [captureRowIndex] [captureColumnIndex] != null)
if (this . boardState [captureRowIndex] [captureColumnIndex] . getOwnPredicate () != matchCode)
if (this . boardState [node . originalRowIndex] [node . originalColumnIndex])
if (this . boardState [node . originalRowIndex] [node . originalColumnIndex] . getKingPredicate () == 1)
if (node . capturePath . indexOf ("[" + captureRowIndex + "," + captureColumnIndex + "]") == - 1)
{
// SEARCH FOR SUCCESSIVE JUMPS
node . lowerRightNode = new Node ();
node . lowerRightNode . ownerNode = node;
node . lowerRightNode . upperLeftNode = null;
node . lowerRightNode . upperRightNode = null;
node . lowerRightNode . lowerLeftNode = null;
node . lowerRightNode . lowerRightNode = null;
node . lowerRightNode . rowIndex = toRowIndex;
node . lowerRightNode . columnIndex = toColumnIndex;
node . lowerRightNode . originalRowIndex = node . originalRowIndex;
node . lowerRightNode . originalColumnIndex = node . originalColumnIndex;
node . lowerRightNode . capturePath = node . capturePath + "[" + captureRowIndex + "," + captureColumnIndex + "]";
node . lowerRightNode . move = node . move + "," + toRowIndex + "," + toColumnIndex;
this . scanJumps (player, node . lowerRightNode);
}
// IF NONE OF THE LEAD-NODES ARE USED, THEN RECORD THE MOVE.
if (node . ownerNode != null)
if (node . upperLeftNode == null)
if (node . upperRightNode == null)
if (node . lowerLeftNode == null)
if (node . lowerRightNode == null)
this . legalJumps . push (node . move);
}
this . getIllegalMovePredicate = function (move)
{
for (var index = 0; index < this . illegalMoves . length; index = index + 1)
if (this . illegalMoves [index] . indexOf (move) == 0)
return (1);
for (var index = 0; index < this . illegalJumps . length; index = index + 1)
if (this . illegalJumps [index] . indexOf (move) == 0)
return (1);
return (0);
}
this . getLegalMovePredicate = function (move)
{
for (var index = 0; index < this . legalMoves . length; index = index + 1)
if (this . legalMoves [index] . indexOf (move) == 0)
return (1);
for (var index = 0; index < this . legalJumps . length; index = index + 1)
if (this . legalJumps [index] . indexOf (move) == 0)
return (1);
return (0);
}
this . getTerminalMovePredicate = function (move)
{
if (this . getMoveCount () == 0)
return (1);
for (var index = 0; index < this . legalMoves . length; index = index + 1)
if (this . legalMoves [index] == move)
return (1);
for (var index = 0; index < this . legalJumps . length; index = index + 1)
if (this . legalJumps [index] == move)
return (1);
return (0);
}
}
function BrazilianRules ()
{
// STATE
this . boardState = null;
this . rowCount = 0;
this . columnCount = 0;
this . illegalMoves = null;
this . illegalJumps = null;
this . legalMoves = null;
this . legalJumps = null;
this . initiate = function ()
{
this . boardState = new Array ();
this . rowCount = 8;
this . columnCount = 8;
}
this . initialize = function ()
{
for (var rowIndex = 0; rowIndex < this . rowCount; rowIndex = rowIndex + 1)
for (var columnIndex = 0; columnIndex < this . columnCount; columnIndex = columnIndex + 1)
{
if (! this . boardState [rowIndex])
{
this . boardState [rowIndex] = new Array ();
}
this . boardState [rowIndex] [columnIndex] = null;
if ((rowIndex < 3) && ((rowIndex % 2) != (columnIndex % 2)))
{
var checkerPiece = null;
checkerPiece = new CheckerPiece ();
checkerPiece . initiate ();
checkerPiece . initialize ();
checkerPiece . setCoordinates (rowIndex * checkerPiece . getHeight () + rowIndex, columnIndex * checkerPiece . getWidth () + columnIndex);
checkerPiece . setOwnPredicate (0);
this . boardState [rowIndex] [columnIndex] = checkerPiece;
}
if ((rowIndex > 4) && ((rowIndex % 2) != (columnIndex % 2)))
{
var checkerPiece = null;
checkerPiece = new CheckerPiece ();
checkerPiece . initiate ();
checkerPiece . initialize ();
checkerPiece . setCoordinates (rowIndex * checkerPiece . getHeight () + rowIndex, columnIndex * checkerPiece . getWidth () + columnIndex);
checkerPiece . setOwnPredicate (1);
this . boardState [rowIndex] [columnIndex] = checkerPiece;
}
}
}
this . getBoardState = function ()
{
return (this . boardState);
}
this . getRowCount = function ()
{
return (this . rowCount);
}
this . getColumnCount = function ()
{
return (this . columnCount);
}
this . getTranslatedMove = function (move)
{
var moveArray = move . split (",");
move = this . rowCount - 1 - moveArray [0];
for (var index = 1; index < moveArray . length; index = index + 1)
move = move + "," + ((index % 2 ? this . columnCount - 1 : this . rowCount - 1) - moveArray [index]);
return (move);
}
this . evaluate = function (player)
{
var matchCode = (player == "own") ? 1 : 0;
// FIND THE VALID REGULAR-MOVES.
this . illegalMoves = new Array ();
this . legalMoves = new Array ();
for (var rowIndex = 0; rowIndex < this . rowCount; rowIndex = rowIndex + 1)
for (var columnIndex = 0; columnIndex < this . columnCount; columnIndex = columnIndex + 1)
if (this . boardState [rowIndex] [columnIndex])
if (this . boardState [rowIndex] [columnIndex] . getOwnPredicate () == matchCode)
{
var node = new Node ();
node . ownerNode = null;
node . upperLeftNode = null;
node . upperRightNode = null;
node . lowerLeftNode = null;
node . lowerRightNode = null;
node . rowIndex = rowIndex;
node . columnIndex = columnIndex;
node . originalRowIndex = rowIndex;
node . originalColumnIndex = columnIndex;
node . capturePath = "";
node . move = rowIndex + "," + columnIndex;
this . scanMoves (player, node);
}
// FIND THE VALID JUMP-MOVES.
this . illegalJumps = new Array ();
this . legalJumps = new Array ();
for (var rowIndex = 0; rowIndex < this . rowCount; rowIndex = rowIndex + 1)
for (var columnIndex = 0; columnIndex < this . columnCount; columnIndex = columnIndex + 1)
if (this . boardState [rowIndex] [columnIndex])
if (this . boardState [rowIndex] [columnIndex] . getOwnPredicate () == matchCode)
{
var node = new Node ();
node . ownerNode = null;
node . upperLeftNodes = null;
node . upperRightNodes = null;
node . lowerLeftNodes = null;
node . lowerRightNodes = null;
node . rowIndex = rowIndex;
node . columnIndex = columnIndex;
node . originalRowIndex = rowIndex;
node . originalColumnIndex = columnIndex;
node . capturePath = "";
node . move = rowIndex + "," + columnIndex;
this . scanJumps (player, node);
}
// IF THERE ARE ANY VALID JUMP-MOVES, THEN ERASE THE REGULAR-MOVES.
if (this . legalJumps . length > 0)
{
this . illegalMoves = this . legalMoves;
this . legalMoves = new Array ();
}
// IN INTERNATIONAL CHECKERS (AND VARIANTS), ONLY THE LONGEST JUMPS MAY BE USED, SO FILTER OUT THE SHORT ONES.
var index = 0;
var longestJumpLength = 0;
var jumps = this . legalJumps;
this . legalJumps = new Array ();
// FIND THE LENGTH OF THE LONGEST JUMP.
for (index = 0; index < jumps . length; index = index + 1)
{
var jumpArray = jumps [index] . split (",");
if (jumpArray . length > longestJumpLength)
longestJumpLength = jumpArray . length;
}
// ACCEPT ONLY THE LONGEST JUMPS.
for (index = 0; index < jumps . length; index = index + 1)
{
var jumpArray = jumps [index] . split (",");
if (jumpArray . length == longestJumpLength)
this . legalJumps . push (jumps [index]);
}
// RECORD THE VALID MOVES/JUMPS IN THE MESSAGE BOX UNDER 'NOTES'.
if (player == "own")
if (this . legalMoves . length > 0)
{
var list = "";
for (var index = 0; index < this . legalMoves . length; index = index + 1)
list = list + this . legalMoves [index] + "\n";
messageBox . addMessage ("Notes", "Available Moves\n\n" + list);
}
if (player == "own")
if (this . legalJumps . length > 0)
{
var list = "";
for (var index = 0; index < this . legalJumps . length; index = index + 1)
list = list + this . legalJumps [index] + "\n";
messageBox . addMessage ("Notes", "Available Jumps\n\n" + list);
}
}
this . getMoveCount = function ()
{
return (this . legalMoves . length + this . legalJumps . length);
}
this . getCheckerPieceCount = function (player, capturePath, ignoreRowIndex, ignoreColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex)
{
var matchCode = (player == "own") ? 1 : 0;
var checkerPieceCount = 0;
var rowStep = 0;
var columnStep = 0;
if (fromRowIndex < toRowIndex) rowStep = 1;
if (fromRowIndex > toRowIndex) rowStep = - 1;
if (fromColumnIndex < toColumnIndex) columnStep = 1;
if (fromColumnIndex > toColumnIndex) columnStep = - 1;
var rowIndex = fromRowIndex + rowStep;
var columnIndex = fromColumnIndex + columnStep;
var index = 0;
var initialValue = 0;
var rowLimit = fromRowIndex < toRowIndex ? toRowIndex - fromRowIndex - 1 : fromRowIndex - toRowIndex - 1;
var columnLimit = fromColumnIndex < toColumnIndex ? toColumnIndex - fromColumnIndex - 1 : fromColumnIndex - toColumnIndex - 1;
var limit = rowLimit > columnLimit ? rowLimit : columnLimit;
for (index = initialValue; index < limit; index = index + 1)
{
var capturedPredicate;
capturedPredicate = 0;
if (capturePath != null)
if (capturePath . indexOf ("[" + rowIndex + "," + columnIndex + "]") != - 1)
capturedPredicate = 1;
if (rowIndex >= 0)
if (rowIndex <= 11)
if (columnIndex >= 0)
if (columnIndex <= 11)
if (capturedPredicate == 0)
if (! ((rowIndex == ignoreRowIndex) && (columnIndex == ignoreColumnIndex)))
if (this . boardState [rowIndex] [columnIndex])
if (this . boardState [rowIndex] [columnIndex] . getOwnPredicate () == matchCode)
checkerPieceCount = checkerPieceCount + 1;
if (capturedPredicate == 1) checkerPieceCount = checkerPieceCount + 1; // added on 2009-06-28 to follow the rule of not jumping over pieces that were removed during this jump
rowIndex = rowIndex + rowStep;
columnIndex = columnIndex + columnStep;
}
return (checkerPieceCount);
}
this . getCheckerPieceRow = function (capturePath, ignoreRowIndex, ignoreColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex)
{
var checkerPieceRow = null;
var rowStep = 0;
var columnStep = 0;
if (fromRowIndex < toRowIndex) rowStep = 1;
if (fromRowIndex > toRowIndex) rowStep = - 1;
if (fromColumnIndex < toColumnIndex) columnStep = 1;
if (fromColumnIndex > toColumnIndex) columnStep = - 1;
var rowIndex = fromRowIndex + rowStep;
var columnIndex = fromColumnIndex + columnStep;
var index = 0;
var initialValue = 0;
var rowLimit = fromRowIndex < toRowIndex ? toRowIndex - fromRowIndex - 1 : fromRowIndex - toRowIndex - 1;
var columnLimit = fromColumnIndex < toColumnIndex ? toColumnIndex - fromColumnIndex - 1 : fromColumnIndex - toColumnIndex - 1;
var limit = rowLimit > columnLimit ? rowLimit : columnLimit;
for (index = initialValue; index < limit; index = index + 1)
{
var capturedPredicate;
capturedPredicate = 0;
if (capturePath != null)
if (capturePath . indexOf ("[" + rowIndex + "," + columnIndex + "]") != - 1)
capturedPredicate = 1;
if (rowIndex >= 0)
if (rowIndex <= 11)
if (columnIndex >= 0)
if (columnIndex <= 11)
if (capturedPredicate == 0)
if (! ((rowIndex == ignoreRowIndex) && (columnIndex == ignoreColumnIndex)))
if (this . boardState [rowIndex] [columnIndex])
checkerPieceRow = rowIndex;
rowIndex = rowIndex + rowStep;
columnIndex = columnIndex + columnStep;
}
return (checkerPieceRow);
}
this . getCheckerPieceColumn = function (capturePath, ignoreRowIndex, ignoreColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex)
{
var checkerPieceColumn = null;
var rowStep = 0;
var columnStep = 0;
if (fromRowIndex < toRowIndex) rowStep = 1;
if (fromRowIndex > toRowIndex) rowStep = - 1;
if (fromColumnIndex < toColumnIndex) columnStep = 1;
if (fromColumnIndex > toColumnIndex) columnStep = - 1;
var rowIndex = fromRowIndex + rowStep;
var columnIndex = fromColumnIndex + columnStep;
var index = 0;
var initialValue = 0;
var rowLimit = fromRowIndex < toRowIndex ? toRowIndex - fromRowIndex - 1 : fromRowIndex - toRowIndex - 1;
var columnLimit = fromColumnIndex < toColumnIndex ? toColumnIndex - fromColumnIndex - 1 : fromColumnIndex - toColumnIndex - 1;
var limit = rowLimit > columnLimit ? rowLimit : columnLimit;
for (index = initialValue; index < limit; index = index + 1)
{
var capturedPredicate;
capturedPredicate = 0;
if (capturePath != null)
if (capturePath . indexOf ("[" + rowIndex + "," + columnIndex + "]") != - 1)
capturedPredicate = 1;
if (rowIndex >= 0)
if (rowIndex <= 11)
if (columnIndex >= 0)
if (columnIndex <= 11)
if (capturedPredicate == 0)
if (! ((rowIndex == ignoreRowIndex) && (columnIndex == ignoreColumnIndex)))
if (this . boardState [rowIndex] [columnIndex])
checkerPieceColumn = columnIndex;
rowIndex = rowIndex + rowStep;
columnIndex = columnIndex + columnStep;
}
return (checkerPieceColumn);
}
this . scanMoves = function (player, node)
{
var matchCode = (player == "own") ? 1 : 0;
var distanceLimit = this . rowCount > this . columnCount ? this . rowCount : this . columnCount;
var distanceIndex;
var fromRowIndex;
var fromColumnIndex;
var toRowIndex;
var toColumnIndex;
fromRowIndex = node . rowIndex;
fromColumnIndex = node . columnIndex;
// SCAN UPPER-LEFT
for (distanceIndex = 0; distanceIndex < distanceLimit; distanceIndex = distanceIndex + 1)
{
if (player == "own")
{
toRowIndex = fromRowIndex - 1 - distanceIndex;
toColumnIndex = fromColumnIndex - 1 - distanceIndex;
}
else
{
toRowIndex = fromRowIndex + 1 + distanceIndex;
toColumnIndex = fromColumnIndex + 1 + distanceIndex;
}
if ((distanceIndex == 0) || (this . boardState [node . originalRowIndex] [node . originalColumnIndex] . getKingPredicate () == 1))
if (toRowIndex >= 0)
if (toRowIndex < this . rowCount)
if (toColumnIndex >= 0)
if (toColumnIndex < this . columnCount)
if (this . boardState [toRowIndex] [toColumnIndex] == null)
if (this . getCheckerPieceCount ("own", "", node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) == 0)
if (this . getCheckerPieceCount ("opponent", "", node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) == 0)
this . legalMoves . push (fromRowIndex + "," + fromColumnIndex + "," + toRowIndex + "," + toColumnIndex);
}
// SCAN UPPER-RIGHT
for (distanceIndex = 0; distanceIndex < distanceLimit; distanceIndex = distanceIndex + 1)
{
if (player == "own")
{
toRowIndex = fromRowIndex - 1 - distanceIndex;
toColumnIndex = fromColumnIndex + 1 + distanceIndex;
}
else
{
toRowIndex = fromRowIndex + 1 + distanceIndex;
toColumnIndex = fromColumnIndex - 1 - distanceIndex;
}
if ((distanceIndex == 0) || (this . boardState [node . originalRowIndex] [node . originalColumnIndex] . getKingPredicate () == 1))
if (toRowIndex >= 0)
if (toRowIndex < this . rowCount)
if (toColumnIndex >= 0)
if (toColumnIndex < this . columnCount)
if (this . boardState [toRowIndex] [toColumnIndex] == null)
if (this . getCheckerPieceCount ("own", "", node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) == 0)
if (this . getCheckerPieceCount ("opponent", "", node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) == 0)
this . legalMoves . push (fromRowIndex + "," + fromColumnIndex + "," + toRowIndex + "," + toColumnIndex);
}
// SCAN LOWER-LEFT IF KING
if (this . boardState [node . originalRowIndex] [node . originalColumnIndex] . getKingPredicate () == 1)
for (distanceIndex = 0; distanceIndex < distanceLimit; distanceIndex = distanceIndex + 1)
{
if (player == "own")
{
toRowIndex = fromRowIndex + 1 + distanceIndex;
toColumnIndex = fromColumnIndex - 1 - distanceIndex;
}
else
{
toRowIndex = fromRowIndex - 1 - distanceIndex;
toColumnIndex = fromColumnIndex + 1 + distanceIndex;
}
if ((distanceIndex == 0) || (this . boardState [node . originalRowIndex] [node . originalColumnIndex] . getKingPredicate () == 1))
if (toRowIndex >= 0)
if (toRowIndex < this . rowCount)
if (toColumnIndex >= 0)
if (toColumnIndex < this . columnCount)
if (this . boardState [toRowIndex] [toColumnIndex] == null)
if (this . boardState [fromRowIndex] [fromColumnIndex] . getKingPredicate () == 1)
if (this . getCheckerPieceCount ("own", "", node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) == 0)
if (this . getCheckerPieceCount ("opponent", "", node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) == 0)
this . legalMoves . push (fromRowIndex + "," + fromColumnIndex + "," + toRowIndex + "," + toColumnIndex);
}
// SCAN LOWER-RIGHT IF KING
if (this . boardState [node . originalRowIndex] [node . originalColumnIndex] . getKingPredicate () == 1)
for (distanceIndex = 0; distanceIndex < distanceLimit; distanceIndex = distanceIndex + 1)
{
if (player == "own")
{
toRowIndex = fromRowIndex + 1 + distanceIndex;
toColumnIndex = fromColumnIndex + 1 + distanceIndex;
}
else
{
toRowIndex = fromRowIndex - 1 - distanceIndex;
toColumnIndex = fromColumnIndex - 1 - distanceIndex;
}
if ((distanceIndex == 0) || (this . boardState [node . originalRowIndex] [node . originalColumnIndex] . getKingPredicate () == 1))
if (toRowIndex >= 0)
if (toRowIndex < this . rowCount)
if (toColumnIndex >= 0)
if (toColumnIndex < this . columnCount)
if (this . boardState [toRowIndex] [toColumnIndex] == null)
if (this . boardState [fromRowIndex] [fromColumnIndex] . getKingPredicate () == 1)
if (this . getCheckerPieceCount ("own", "", node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) == 0)
if (this . getCheckerPieceCount ("opponent", "", node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) == 0)
this . legalMoves . push (fromRowIndex + "," + fromColumnIndex + "," + toRowIndex + "," + toColumnIndex);
}
}
this . scanJumps = function (player, node)
{
var otherPlayer = (player == "own") ? "opponent" : "own";
var matchCode = (player == "own") ? 1 : 0;
var distanceLimit = this . rowCount > this . columnCount ? this . rowCount : this . columnCount;
var distanceIndex;
var fromRowIndex;
var fromColumnIndex;
var toRowIndex;
var toColumnIndex;
fromRowIndex = node . rowIndex;
fromColumnIndex = node . columnIndex;
// SCAN UPPER-LEFT
for (distanceIndex = 0; distanceIndex < distanceLimit; distanceIndex = distanceIndex + 1)
{
if (player == "own")
{
toRowIndex = fromRowIndex - 2 - distanceIndex;
toColumnIndex = fromColumnIndex - 2 - distanceIndex;
}
else
{
toRowIndex = fromRowIndex + 2 + distanceIndex;
toColumnIndex = fromColumnIndex + 2 + distanceIndex;
}
if ((distanceIndex == 0) || (this . boardState [node . originalRowIndex] [node . originalColumnIndex] . getKingPredicate () == 1))
if (toRowIndex >= 0)
if (toRowIndex < this . rowCount)
if (toColumnIndex >= 0)
if (toColumnIndex < this . columnCount)
if (this . boardState [toRowIndex] [toColumnIndex] == null)
if (this . getCheckerPieceCount (player, node . capturePath, node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) == 0)
if (this . getCheckerPieceCount (otherPlayer, node . capturePath, node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) == 1)
if (node . capturePath . indexOf ("[" + this . getCheckerPieceRow (node . capturePath, node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) + "," + this . getCheckerPieceColumn (node . capturePath, node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) + "]") == - 1)
{
// SEARCH FOR SUCCESSIVE JUMPS
if (! node . upperLeftNodes)
node . upperLeftNodes = new Array ();
node . upperLeftNodes [distanceIndex] = new Node ();
node . upperLeftNodes [distanceIndex] . ownerNode = node;
node . upperLeftNodes [distanceIndex] . upperLeftNodes = null;
node . upperLeftNodes [distanceIndex] . upperRightNodes = null;
node . upperLeftNodes [distanceIndex] . lowerLeftNodes = null;
node . upperLeftNodes [distanceIndex] . lowerRightNodes = null;
node . upperLeftNodes [distanceIndex] . rowIndex = toRowIndex;
node . upperLeftNodes [distanceIndex] . columnIndex = toColumnIndex;
node . upperLeftNodes [distanceIndex] . originalRowIndex = node . originalRowIndex;
node . upperLeftNodes [distanceIndex] . originalColumnIndex = node . originalColumnIndex;
node . upperLeftNodes [distanceIndex] . capturePath = node . capturePath + "[" + this . getCheckerPieceRow (node . capturePath, node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) + "," + this . getCheckerPieceColumn (node . capturePath, node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) + "]";
node . upperLeftNodes [distanceIndex] . move = node . move + "," + toRowIndex + "," + toColumnIndex;
this . scanJumps (player, node . upperLeftNodes [distanceIndex]);
}
}
// SCAN UPPER-RIGHT
for (distanceIndex = 0; distanceIndex < distanceLimit; distanceIndex = distanceIndex + 1)
{
if (player == "own")
{
toRowIndex = fromRowIndex - 2 - distanceIndex;
toColumnIndex = fromColumnIndex + 2 + distanceIndex;
}
else
{
toRowIndex = fromRowIndex + 2 + distanceIndex;
toColumnIndex = fromColumnIndex - 2 - distanceIndex;
}
if ((distanceIndex == 0) || (this . boardState [node . originalRowIndex] [node . originalColumnIndex] . getKingPredicate () == 1))
if (toRowIndex >= 0)
if (toRowIndex < this . rowCount)
if (toColumnIndex >= 0)
if (toColumnIndex < this . columnCount)
if (this . boardState [toRowIndex] [toColumnIndex] == null)
if (this . getCheckerPieceCount (player, node . capturePath, node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) == 0)
if (this . getCheckerPieceCount (otherPlayer, node . capturePath, node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) == 1)
if (node . capturePath . indexOf ("[" + this . getCheckerPieceRow (node . capturePath, node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) + "," + this . getCheckerPieceColumn (node . capturePath, node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) + "]") == - 1)
{
// SEARCH FOR SUCCESSIVE JUMPS
if (! node . upperRightNodes)
node . upperRightNodes = new Array ();
node . upperRightNodes [distanceIndex] = new Node ();
node . upperRightNodes [distanceIndex] . ownerNode = node;
node . upperRightNodes [distanceIndex] . upperLeftNodes = null;
node . upperRightNodes [distanceIndex] . upperRightNodes = null;
node . upperRightNodes [distanceIndex] . lowerLeftNodes = null;
node . upperRightNodes [distanceIndex] . lowerRightNodes = null;
node . upperRightNodes [distanceIndex] . rowIndex = toRowIndex;
node . upperRightNodes [distanceIndex] . columnIndex = toColumnIndex;
node . upperRightNodes [distanceIndex] . originalRowIndex = node . originalRowIndex;
node . upperRightNodes [distanceIndex] . originalColumnIndex = node . originalColumnIndex;
node . upperRightNodes [distanceIndex] . capturePath = node . capturePath + "[" + this . getCheckerPieceRow (node . capturePath, node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) + "," + this . getCheckerPieceColumn (node . capturePath, node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) + "]";
node . upperRightNodes [distanceIndex] . move = node . move + "," + toRowIndex + "," + toColumnIndex;
this . scanJumps (player, node . upperRightNodes [distanceIndex]);
}
}
// SCAN LOWER-LEFT
for (distanceIndex = 0; distanceIndex < distanceLimit; distanceIndex = distanceIndex + 1)
{
if (player == "own")
{
toRowIndex = fromRowIndex + 2 + distanceIndex;
toColumnIndex = fromColumnIndex - 2 - distanceIndex;
}
else
{
toRowIndex = fromRowIndex - 2 - distanceIndex;
toColumnIndex = fromColumnIndex + 2 + distanceIndex;
}
if ((distanceIndex == 0) || (this . boardState [node . originalRowIndex] [node . originalColumnIndex] . getKingPredicate () == 1))
if (toRowIndex >= 0)
if (toRowIndex < this . rowCount)
if (toColumnIndex >= 0)
if (toColumnIndex < this . columnCount)
if (this . boardState [toRowIndex] [toColumnIndex] == null)
if (this . getCheckerPieceCount (player, node . capturePath, node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) == 0)
if (this . getCheckerPieceCount (otherPlayer, node . capturePath, node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) == 1)
if (node . capturePath . indexOf ("[" + this . getCheckerPieceRow (node . capturePath, node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) + "," + this . getCheckerPieceColumn (node . capturePath, node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) + "]") == - 1)
{
// SEARCH FOR SUCCESSIVE JUMPS
if (! node . lowerLeftNodes)
node . lowerLeftNodes = new Array ();
node . lowerLeftNodes [distanceIndex] = new Node ();
node . lowerLeftNodes [distanceIndex] . ownerNode = node;
node . lowerLeftNodes [distanceIndex] . upperLeftNodes = null;
node . lowerLeftNodes [distanceIndex] . upperRightNodes = null;
node . lowerLeftNodes [distanceIndex] . lowerLeftNodes = null;
node . lowerLeftNodes [distanceIndex] . lowerRightNodes = null;
node . lowerLeftNodes [distanceIndex] . rowIndex = toRowIndex;
node . lowerLeftNodes [distanceIndex] . columnIndex = toColumnIndex;
node . lowerLeftNodes [distanceIndex] . originalRowIndex = node . originalRowIndex;
node . lowerLeftNodes [distanceIndex] . originalColumnIndex = node . originalColumnIndex;
node . lowerLeftNodes [distanceIndex] . capturePath = node . capturePath + "[" + this . getCheckerPieceRow (node . capturePath, node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) + "," + this . getCheckerPieceColumn (node . capturePath, node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) + "]";
node . lowerLeftNodes [distanceIndex] . move = node . move + "," + toRowIndex + "," + toColumnIndex;
this . scanJumps (player, node . lowerLeftNodes [distanceIndex]);
}
}
// SCAN LOWER-RIGHT
for (distanceIndex = 0; distanceIndex < distanceLimit; distanceIndex = distanceIndex + 1)
{
if (player == "own")
{
toRowIndex = fromRowIndex + 2 + distanceIndex;
toColumnIndex = fromColumnIndex + 2 + distanceIndex;
}
else
{
toRowIndex = fromRowIndex - 2 - distanceIndex;
toColumnIndex = fromColumnIndex - 2 - distanceIndex;
}
if ((distanceIndex == 0) || (this . boardState [node . originalRowIndex] [node . originalColumnIndex] . getKingPredicate () == 1))
if (toRowIndex >= 0)
if (toRowIndex < this . rowCount)
if (toColumnIndex >= 0)
if (toColumnIndex < this . columnCount)
if (this . boardState [toRowIndex] [toColumnIndex] == null)
if (this . getCheckerPieceCount (player, node . capturePath, node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) == 0)
if (this . getCheckerPieceCount (otherPlayer, node . capturePath, node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) == 1)
if (node . capturePath . indexOf ("[" + this . getCheckerPieceRow (node . capturePath, node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) + "," + this . getCheckerPieceColumn (node . capturePath, node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) + "]") == - 1)
{
// SEARCH FOR SUCCESSIVE JUMPS
if (! node . lowerRightNodes)
node . lowerRightNodes = new Array ();
node . lowerRightNodes [distanceIndex] = new Node ();
node . lowerRightNodes [distanceIndex] . ownerNode = node;
node . lowerRightNodes [distanceIndex] . upperLeftNodes = null;
node . lowerRightNodes [distanceIndex] . upperRightNodes = null;
node . lowerRightNodes [distanceIndex] . lowerLeftNodes = null;
node . lowerRightNodes [distanceIndex] . lowerRightNodes = null;
node . lowerRightNodes [distanceIndex] . rowIndex = toRowIndex;
node . lowerRightNodes [distanceIndex] . columnIndex = toColumnIndex;
node . lowerRightNodes [distanceIndex] . originalRowIndex = node . originalRowIndex;
node . lowerRightNodes [distanceIndex] . originalColumnIndex = node . originalColumnIndex;
node . lowerRightNodes [distanceIndex] . capturePath = node . capturePath + "[" + this . getCheckerPieceRow (node . capturePath, node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) + "," + this . getCheckerPieceColumn (node . capturePath, node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) + "]";
node . lowerRightNodes [distanceIndex] . move = node . move + "," + toRowIndex + "," + toColumnIndex;
this . scanJumps (player, node . lowerRightNodes [distanceIndex]);
}
}
// IF NONE OF THE LEAD-NODES ARE USED, THEN RECORD THE MOVE.
if (node . ownerNode != null)
if (node . upperLeftNodes == null)
if (node . upperRightNodes == null)
if (node . lowerLeftNodes == null)
if (node . lowerRightNodes == null)
this . legalJumps . push (node . move);
}
this . getIllegalMovePredicate = function (move)
{
for (var index = 0; index < this . illegalMoves . length; index = index + 1)
if (this . illegalMoves [index] . indexOf (move) == 0)
return (1);
for (var index = 0; index < this . illegalJumps . length; index = index + 1)
if (this . illegalJumps [index] . indexOf (move) == 0)
return (1);
return (0);
}
this . getLegalMovePredicate = function (move)
{
for (var index = 0; index < this . legalMoves . length; index = index + 1)
if (this . legalMoves [index] . indexOf (move) == 0)
return (1);
for (var index = 0; index < this . legalJumps . length; index = index + 1)
if (this . legalJumps [index] . indexOf (move) == 0)
return (1);
return (0);
}
this . getTerminalMovePredicate = function (move)
{
if (this . getMoveCount () == 0)
return (1);
for (var index = 0; index < this . legalMoves . length; index = index + 1)
if (this . legalMoves [index] == move)
return (1);
for (var index = 0; index < this . legalJumps . length; index = index + 1)
if (this . legalJumps [index] == move)
return (1);
return (0);
}
}
function CanadianRules ()
{
// STATE
this . boardState = null;
this . rowCount = 0;
this . columnCount = 0;
this . illegalMoves = null;
this . illegalJumps = null;
this . legalMoves = null;
this . legalJumps = null;
this . initiate = function ()
{
this . boardState = new Array ();
this . rowCount = 12;
this . columnCount = 12;
}
this . initialize = function ()
{
var predefinedPredicate = 0;
var predefinedState = new Array ();
if (predefinedPredicate == 1)
{
// from the perspective of the primary player
// 0 = blank
// 1 = primary player's man
// 2 = primary player's king
// 3 = secondary player's man
// 4 = secondary player's king
predefinedState [ 0] = "000000000000";
predefinedState [ 1] = "000004000000";
predefinedState [ 2] = "000000000000";
predefinedState [ 3] = "000303000000";
predefinedState [ 4] = "002000000000";
predefinedState [ 5] = "000003000000";
predefinedState [ 6] = "003000000000";
predefinedState [ 7] = "000000000000";
predefinedState [ 8] = "000000000000";
predefinedState [ 9] = "000000000000";
predefinedState [10] = "000000000000";
predefinedState [11] = "000000000000";
}
for (var rowIndex = 0; rowIndex < this . rowCount; rowIndex = rowIndex + 1)
for (var columnIndex = 0; columnIndex < this . columnCount; columnIndex = columnIndex + 1)
{
if (! this . boardState [rowIndex])
{
this . boardState [rowIndex] = new Array ();
}
this . boardState [rowIndex] [columnIndex] = null;
if ((rowIndex < 5) && ((rowIndex % 2) != (columnIndex % 2)))
{
var checkerPiece = null;
checkerPiece = new CheckerPiece ();
checkerPiece . initiate ();
checkerPiece . initialize ();
checkerPiece . setCoordinates (rowIndex * checkerPiece . getHeight () + rowIndex, columnIndex * checkerPiece . getWidth () + columnIndex);
checkerPiece . setOwnPredicate (0);
this . boardState [rowIndex] [columnIndex] = checkerPiece;
}
if ((rowIndex > 6) && ((rowIndex % 2) != (columnIndex % 2)))
{
var checkerPiece = null;
checkerPiece = new CheckerPiece ();
checkerPiece . initiate ();
checkerPiece . initialize ();
checkerPiece . setCoordinates (rowIndex * checkerPiece . getHeight () + rowIndex, columnIndex * checkerPiece . getWidth () + columnIndex);
checkerPiece . setOwnPredicate (1);
this . boardState [rowIndex] [columnIndex] = checkerPiece;
}
if (predefinedPredicate == 1)
{
var checkerPiece = null;
var predefinedValue = predefinedState [rowIndex] . charAt (columnIndex);
if (predefinedState [rowIndex] . charAt (columnIndex) != 0)
{
checkerPiece = new CheckerPiece ();
checkerPiece . initiate ();
checkerPiece . initialize ();
checkerPiece . setCoordinates (rowIndex * checkerPiece . getHeight (), columnIndex * checkerPiece . getWidth ());
checkerPiece . setOwnPredicate (((predefinedValue == 1) || (predefinedValue == 2)) ? 1 : 0);
checkerPiece . setKingPredicate (((predefinedValue == 2) || (predefinedValue == 4)) ? 1 : 0);
this . boardState [rowIndex] [columnIndex] = checkerPiece;
}
else
{
this . boardState [rowIndex] [columnIndex] = null;
}
}
}
}
this . getBoardState = function ()
{
return (this . boardState);
}
this . getRowCount = function ()
{
return (this . rowCount);
}
this . getColumnCount = function ()
{
return (this . columnCount);
}
this . getTranslatedMove = function (move)
{
var moveArray = move . split (",");
move = this . rowCount - 1 - moveArray [0];
for (var index = 1; index < moveArray . length; index = index + 1)
move = move + "," + ((index % 2 ? this . columnCount - 1 : this . rowCount - 1) - moveArray [index]);
return (move);
}
this . evaluate = function (player)
{
var matchCode = (player == "own") ? 1 : 0;
// FIND THE VALID REGULAR-MOVES.
this . illegalMoves = new Array ();
this . legalMoves = new Array ();
for (var rowIndex = 0; rowIndex < this . rowCount; rowIndex = rowIndex + 1)
for (var columnIndex = 0; columnIndex < this . columnCount; columnIndex = columnIndex + 1)
if (this . boardState [rowIndex] [columnIndex])
if (this . boardState [rowIndex] [columnIndex] . getOwnPredicate () == matchCode)
{
var node = new Node ();
node . ownerNode = null;
node . upperLeftNode = null;
node . upperRightNode = null;
node . lowerLeftNode = null;
node . lowerRightNode = null;
node . rowIndex = rowIndex;
node . columnIndex = columnIndex;
node . originalRowIndex = rowIndex;
node . originalColumnIndex = columnIndex;
node . capturePath = "";
node . move = rowIndex + "," + columnIndex;
this . scanMoves (player, node);
}
// FIND THE VALID JUMP-MOVES.
this . illegalJumps = new Array ();
this . legalJumps = new Array ();
for (var rowIndex = 0; rowIndex < this . rowCount; rowIndex = rowIndex + 1)
for (var columnIndex = 0; columnIndex < this . columnCount; columnIndex = columnIndex + 1)
if (this . boardState [rowIndex] [columnIndex])
if (this . boardState [rowIndex] [columnIndex] . getOwnPredicate () == matchCode)
{
var node = new Node ();
node . ownerNode = null;
node . upperLeftNodes = null;
node . upperRightNodes = null;
node . lowerLeftNodes = null;
node . lowerRightNodes = null;
node . rowIndex = rowIndex;
node . columnIndex = columnIndex;
node . originalRowIndex = rowIndex;
node . originalColumnIndex = columnIndex;
node . capturePath = "";
node . move = rowIndex + "," + columnIndex;
this . scanJumps (player, node);
}
// IF THERE ARE ANY VALID JUMP-MOVES, THEN ERASE THE REGULAR-MOVES.
if (this . legalJumps . length > 0)
{
this . illegalMoves = this . legalMoves;
this . legalMoves = new Array ();
}
// IN INTERNATIONAL CHECKERS (AND VARIANTS), ONLY THE LONGEST JUMPS MAY BE USED, SO FILTER OUT THE SHORT ONES.
var index = 0;
var longestJumpLength = 0;
var jumps = this . legalJumps;
this . legalJumps = new Array ();
// FIND THE LENGTH OF THE LONGEST JUMP.
for (index = 0; index < jumps . length; index = index + 1)
{
var jumpArray = jumps [index] . split (",");
if (jumpArray . length > longestJumpLength)
longestJumpLength = jumpArray . length;
}
// ACCEPT ONLY THE LONGEST JUMPS.
for (index = 0; index < jumps . length; index = index + 1)
{
var jumpArray = jumps [index] . split (",");
if (jumpArray . length == longestJumpLength)
this . legalJumps . push (jumps [index]);
}
// RECORD THE VALID MOVES/JUMPS IN THE MESSAGE BOX UNDER 'NOTES'.
if (player == "own")
if (this . legalMoves . length > 0)
{
var list = "";
for (var index = 0; index < this . legalMoves . length; index = index + 1)
list = list + this . legalMoves [index] + "\n";
messageBox . addMessage ("Notes", "Available Moves\n\n" + list);
}
if (player == "own")
if (this . legalJumps . length > 0)
{
var list = "";
for (var index = 0; index < this . legalJumps . length; index = index + 1)
list = list + this . legalJumps [index] + "\n";
messageBox . addMessage ("Notes", "Available Jumps\n\n" + list);
}
}
this . getMoveCount = function ()
{
return (this . legalMoves . length + this . legalJumps . length);
}
this . getCheckerPieceCount = function (player, capturePath, ignoreRowIndex, ignoreColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex)
{
var matchCode = (player == "own") ? 1 : 0;
var checkerPieceCount = 0;
var rowStep = 0;
var columnStep = 0;
if (fromRowIndex < toRowIndex) rowStep = 1;
if (fromRowIndex > toRowIndex) rowStep = - 1;
if (fromColumnIndex < toColumnIndex) columnStep = 1;
if (fromColumnIndex > toColumnIndex) columnStep = - 1;
var rowIndex = fromRowIndex + rowStep;
var columnIndex = fromColumnIndex + columnStep;
var index = 0;
var initialValue = 0;
var rowLimit = fromRowIndex < toRowIndex ? toRowIndex - fromRowIndex - 1 : fromRowIndex - toRowIndex - 1;
var columnLimit = fromColumnIndex < toColumnIndex ? toColumnIndex - fromColumnIndex - 1 : fromColumnIndex - toColumnIndex - 1;
var limit = rowLimit > columnLimit ? rowLimit : columnLimit;
for (index = initialValue; index < limit; index = index + 1)
{
var capturedPredicate;
capturedPredicate = 0;
if (capturePath != null)
if (capturePath . indexOf ("[" + rowIndex + "," + columnIndex + "]") != - 1)
capturedPredicate = 1;
if (rowIndex >= 0)
if (rowIndex <= 11)
if (columnIndex >= 0)
if (columnIndex <= 11)
if (capturedPredicate == 0)
if (! ((rowIndex == ignoreRowIndex) && (columnIndex == ignoreColumnIndex)))
if (this . boardState [rowIndex] [columnIndex])
if (this . boardState [rowIndex] [columnIndex] . getOwnPredicate () == matchCode)
checkerPieceCount = checkerPieceCount + 1;
if (capturedPredicate == 1) checkerPieceCount = checkerPieceCount + 1; // added on 2009-06-28 to follow the rule of not jumping over pieces that were removed during this jump
rowIndex = rowIndex + rowStep;
columnIndex = columnIndex + columnStep;
}
return (checkerPieceCount);
}
this . getCheckerPieceRow = function (capturePath, ignoreRowIndex, ignoreColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex)
{
var checkerPieceRow = null;
var rowStep = 0;
var columnStep = 0;
if (fromRowIndex < toRowIndex) rowStep = 1;
if (fromRowIndex > toRowIndex) rowStep = - 1;
if (fromColumnIndex < toColumnIndex) columnStep = 1;
if (fromColumnIndex > toColumnIndex) columnStep = - 1;
var rowIndex = fromRowIndex + rowStep;
var columnIndex = fromColumnIndex + columnStep;
var index = 0;
var initialValue = 0;
var rowLimit = fromRowIndex < toRowIndex ? toRowIndex - fromRowIndex - 1 : fromRowIndex - toRowIndex - 1;
var columnLimit = fromColumnIndex < toColumnIndex ? toColumnIndex - fromColumnIndex - 1 : fromColumnIndex - toColumnIndex - 1;
var limit = rowLimit > columnLimit ? rowLimit : columnLimit;
for (index = initialValue; index < limit; index = index + 1)
{
var capturedPredicate;
capturedPredicate = 0;
if (capturePath != null)
if (capturePath . indexOf ("[" + rowIndex + "," + columnIndex + "]") != - 1)
capturedPredicate = 1;
if (rowIndex >= 0)
if (rowIndex <= 11)
if (columnIndex >= 0)
if (columnIndex <= 11)
if (capturedPredicate == 0)
if (! ((rowIndex == ignoreRowIndex) && (columnIndex == ignoreColumnIndex)))
if (this . boardState [rowIndex] [columnIndex])
checkerPieceRow = rowIndex;
rowIndex = rowIndex + rowStep;
columnIndex = columnIndex + columnStep;
}
return (checkerPieceRow);
}
this . getCheckerPieceColumn = function (capturePath, ignoreRowIndex, ignoreColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex)
{
var checkerPieceColumn = null;
var rowStep = 0;
var columnStep = 0;
if (fromRowIndex < toRowIndex) rowStep = 1;
if (fromRowIndex > toRowIndex) rowStep = - 1;
if (fromColumnIndex < toColumnIndex) columnStep = 1;
if (fromColumnIndex > toColumnIndex) columnStep = - 1;
var rowIndex = fromRowIndex + rowStep;
var columnIndex = fromColumnIndex + columnStep;
var index = 0;
var initialValue = 0;
var rowLimit = fromRowIndex < toRowIndex ? toRowIndex - fromRowIndex - 1 : fromRowIndex - toRowIndex - 1;
var columnLimit = fromColumnIndex < toColumnIndex ? toColumnIndex - fromColumnIndex - 1 : fromColumnIndex - toColumnIndex - 1;
var limit = rowLimit > columnLimit ? rowLimit : columnLimit;
for (index = initialValue; index < limit; index = index + 1)
{
var capturedPredicate;
capturedPredicate = 0;
if (capturePath != null)
if (capturePath . indexOf ("[" + rowIndex + "," + columnIndex + "]") != - 1)
capturedPredicate = 1;
if (rowIndex >= 0)
if (rowIndex <= 11)
if (columnIndex >= 0)
if (columnIndex <= 11)
if (capturedPredicate == 0)
if (! ((rowIndex == ignoreRowIndex) && (columnIndex == ignoreColumnIndex)))
if (this . boardState [rowIndex] [columnIndex])
checkerPieceColumn = columnIndex;
rowIndex = rowIndex + rowStep;
columnIndex = columnIndex + columnStep;
}
return (checkerPieceColumn);
}
this . scanMoves = function (player, node)
{
var matchCode = (player == "own") ? 1 : 0;
var distanceLimit = this . rowCount > this . columnCount ? this . rowCount : this . columnCount;
var distanceIndex;
var fromRowIndex;
var fromColumnIndex;
var toRowIndex;
var toColumnIndex;
fromRowIndex = node . rowIndex;
fromColumnIndex = node . columnIndex;
// SCAN UPPER-LEFT
for (distanceIndex = 0; distanceIndex < distanceLimit; distanceIndex = distanceIndex + 1)
{
if (player == "own")
{
toRowIndex = fromRowIndex - 1 - distanceIndex;
toColumnIndex = fromColumnIndex - 1 - distanceIndex;
}
else
{
toRowIndex = fromRowIndex + 1 + distanceIndex;
toColumnIndex = fromColumnIndex + 1 + distanceIndex;
}
if ((distanceIndex == 0) || (this . boardState [node . originalRowIndex] [node . originalColumnIndex] . getKingPredicate () == 1))
if (toRowIndex >= 0)
if (toRowIndex < this . rowCount)
if (toColumnIndex >= 0)
if (toColumnIndex < this . columnCount)
if (this . boardState [toRowIndex] [toColumnIndex] == null)
if (this . getCheckerPieceCount ("own", "", node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) == 0)
if (this . getCheckerPieceCount ("opponent", "", node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) == 0)
this . legalMoves . push (fromRowIndex + "," + fromColumnIndex + "," + toRowIndex + "," + toColumnIndex);
}
// SCAN UPPER-RIGHT
for (distanceIndex = 0; distanceIndex < distanceLimit; distanceIndex = distanceIndex + 1)
{
if (player == "own")
{
toRowIndex = fromRowIndex - 1 - distanceIndex;
toColumnIndex = fromColumnIndex + 1 + distanceIndex;
}
else
{
toRowIndex = fromRowIndex + 1 + distanceIndex;
toColumnIndex = fromColumnIndex - 1 - distanceIndex;
}
if ((distanceIndex == 0) || (this . boardState [node . originalRowIndex] [node . originalColumnIndex] . getKingPredicate () == 1))
if (toRowIndex >= 0)
if (toRowIndex < this . rowCount)
if (toColumnIndex >= 0)
if (toColumnIndex < this . columnCount)
if (this . boardState [toRowIndex] [toColumnIndex] == null)
if (this . getCheckerPieceCount ("own", "", node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) == 0)
if (this . getCheckerPieceCount ("opponent", "", node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) == 0)
this . legalMoves . push (fromRowIndex + "," + fromColumnIndex + "," + toRowIndex + "," + toColumnIndex);
}
// SCAN LOWER-LEFT IF KING
if (this . boardState [node . originalRowIndex] [node . originalColumnIndex] . getKingPredicate () == 1)
for (distanceIndex = 0; distanceIndex < distanceLimit; distanceIndex = distanceIndex + 1)
{
if (player == "own")
{
toRowIndex = fromRowIndex + 1 + distanceIndex;
toColumnIndex = fromColumnIndex - 1 - distanceIndex;
}
else
{
toRowIndex = fromRowIndex - 1 - distanceIndex;
toColumnIndex = fromColumnIndex + 1 + distanceIndex;
}
if ((distanceIndex == 0) || (this . boardState [node . originalRowIndex] [node . originalColumnIndex] . getKingPredicate () == 1))
if (toRowIndex >= 0)
if (toRowIndex < this . rowCount)
if (toColumnIndex >= 0)
if (toColumnIndex < this . columnCount)
if (this . boardState [toRowIndex] [toColumnIndex] == null)
if (this . boardState [fromRowIndex] [fromColumnIndex] . getKingPredicate () == 1)
if (this . getCheckerPieceCount ("own", "", node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) == 0)
if (this . getCheckerPieceCount ("opponent", "", node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) == 0)
this . legalMoves . push (fromRowIndex + "," + fromColumnIndex + "," + toRowIndex + "," + toColumnIndex);
}
// SCAN LOWER-RIGHT IF KING
if (this . boardState [node . originalRowIndex] [node . originalColumnIndex] . getKingPredicate () == 1)
for (distanceIndex = 0; distanceIndex < distanceLimit; distanceIndex = distanceIndex + 1)
{
if (player == "own")
{
toRowIndex = fromRowIndex + 1 + distanceIndex;
toColumnIndex = fromColumnIndex + 1 + distanceIndex;
}
else
{
toRowIndex = fromRowIndex - 1 - distanceIndex;
toColumnIndex = fromColumnIndex - 1 - distanceIndex;
}
if ((distanceIndex == 0) || (this . boardState [node . originalRowIndex] [node . originalColumnIndex] . getKingPredicate () == 1))
if (toRowIndex >= 0)
if (toRowIndex < this . rowCount)
if (toColumnIndex >= 0)
if (toColumnIndex < this . columnCount)
if (this . boardState [toRowIndex] [toColumnIndex] == null)
if (this . boardState [fromRowIndex] [fromColumnIndex] . getKingPredicate () == 1)
if (this . getCheckerPieceCount ("own", "", node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) == 0)
if (this . getCheckerPieceCount ("opponent", "", node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) == 0)
this . legalMoves . push (fromRowIndex + "," + fromColumnIndex + "," + toRowIndex + "," + toColumnIndex);
}
}
this . scanJumps = function (player, node)
{
var otherPlayer = (player == "own") ? "opponent" : "own";
var matchCode = (player == "own") ? 1 : 0;
var distanceLimit = this . rowCount > this . columnCount ? this . rowCount : this . columnCount;
var distanceIndex;
var fromRowIndex;
var fromColumnIndex;
var toRowIndex;
var toColumnIndex;
fromRowIndex = node . rowIndex;
fromColumnIndex = node . columnIndex;
// SCAN UPPER-LEFT
for (distanceIndex = 0; distanceIndex < distanceLimit; distanceIndex = distanceIndex + 1)
{
if (player == "own")
{
toRowIndex = fromRowIndex - 2 - distanceIndex;
toColumnIndex = fromColumnIndex - 2 - distanceIndex;
}
else
{
toRowIndex = fromRowIndex + 2 + distanceIndex;
toColumnIndex = fromColumnIndex + 2 + distanceIndex;
}
if ((distanceIndex == 0) || (this . boardState [node . originalRowIndex] [node . originalColumnIndex] . getKingPredicate () == 1))
if (toRowIndex >= 0)
if (toRowIndex < this . rowCount)
if (toColumnIndex >= 0)
if (toColumnIndex < this . columnCount)
if ((this . boardState [toRowIndex] [toColumnIndex] == null) && (! ((toRowIndex == node . originalRowIndex) && (toColumnIndex == node . originalColumnIndex))))
if (this . getCheckerPieceCount (player, node . capturePath, node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) == 0)
if (this . getCheckerPieceCount (otherPlayer, node . capturePath, node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) == 1)
if (node . capturePath . indexOf ("[" + this . getCheckerPieceRow (node . capturePath, node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) + "," + this . getCheckerPieceColumn (node . capturePath, node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) + "]") == - 1)
{
// SEARCH FOR SUCCESSIVE JUMPS
if (! node . upperLeftNodes)
node . upperLeftNodes = new Array ();
node . upperLeftNodes [distanceIndex] = new Node ();
node . upperLeftNodes [distanceIndex] . ownerNode = node;
node . upperLeftNodes [distanceIndex] . upperLeftNodes = null;
node . upperLeftNodes [distanceIndex] . upperRightNodes = null;
node . upperLeftNodes [distanceIndex] . lowerLeftNodes = null;
node . upperLeftNodes [distanceIndex] . lowerRightNodes = null;
node . upperLeftNodes [distanceIndex] . rowIndex = toRowIndex;
node . upperLeftNodes [distanceIndex] . columnIndex = toColumnIndex;
node . upperLeftNodes [distanceIndex] . originalRowIndex = node . originalRowIndex;
node . upperLeftNodes [distanceIndex] . originalColumnIndex = node . originalColumnIndex;
node . upperLeftNodes [distanceIndex] . capturePath = node . capturePath + "[" + this . getCheckerPieceRow (node . capturePath, node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) + "," + this . getCheckerPieceColumn (node . capturePath, node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) + "]";
node . upperLeftNodes [distanceIndex] . move = node . move + "," + toRowIndex + "," + toColumnIndex;
this . scanJumps (player, node . upperLeftNodes [distanceIndex]);
}
}
// SCAN UPPER-RIGHT
for (distanceIndex = 0; distanceIndex < distanceLimit; distanceIndex = distanceIndex + 1)
{
if (player == "own")
{
toRowIndex = fromRowIndex - 2 - distanceIndex;
toColumnIndex = fromColumnIndex + 2 + distanceIndex;
}
else
{
toRowIndex = fromRowIndex + 2 + distanceIndex;
toColumnIndex = fromColumnIndex - 2 - distanceIndex;
}
if ((distanceIndex == 0) || (this . boardState [node . originalRowIndex] [node . originalColumnIndex] . getKingPredicate () == 1))
if (toRowIndex >= 0)
if (toRowIndex < this . rowCount)
if (toColumnIndex >= 0)
if (toColumnIndex < this . columnCount)
if ((this . boardState [toRowIndex] [toColumnIndex] == null) && (! ((toRowIndex == node . originalRowIndex) && (toColumnIndex == node . originalColumnIndex))))
if (this . getCheckerPieceCount (player, node . capturePath, node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) == 0)
if (this . getCheckerPieceCount (otherPlayer, node . capturePath, node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) == 1)
if (node . capturePath . indexOf ("[" + this . getCheckerPieceRow (node . capturePath, node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) + "," + this . getCheckerPieceColumn (node . capturePath, node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) + "]") == - 1)
{
// SEARCH FOR SUCCESSIVE JUMPS
if (! node . upperRightNodes)
node . upperRightNodes = new Array ();
node . upperRightNodes [distanceIndex] = new Node ();
node . upperRightNodes [distanceIndex] . ownerNode = node;
node . upperRightNodes [distanceIndex] . upperLeftNodes = null;
node . upperRightNodes [distanceIndex] . upperRightNodes = null;
node . upperRightNodes [distanceIndex] . lowerLeftNodes = null;
node . upperRightNodes [distanceIndex] . lowerRightNodes = null;
node . upperRightNodes [distanceIndex] . rowIndex = toRowIndex;
node . upperRightNodes [distanceIndex] . columnIndex = toColumnIndex;
node . upperRightNodes [distanceIndex] . originalRowIndex = node . originalRowIndex;
node . upperRightNodes [distanceIndex] . originalColumnIndex = node . originalColumnIndex;
node . upperRightNodes [distanceIndex] . capturePath = node . capturePath + "[" + this . getCheckerPieceRow (node . capturePath, node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) + "," + this . getCheckerPieceColumn (node . capturePath, node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) + "]";
node . upperRightNodes [distanceIndex] . move = node . move + "," + toRowIndex + "," + toColumnIndex;
this . scanJumps (player, node . upperRightNodes [distanceIndex]);
}
}
// SCAN LOWER-LEFT
for (distanceIndex = 0; distanceIndex < distanceLimit; distanceIndex = distanceIndex + 1)
{
if (player == "own")
{
toRowIndex = fromRowIndex + 2 + distanceIndex;
toColumnIndex = fromColumnIndex - 2 - distanceIndex;
}
else
{
toRowIndex = fromRowIndex - 2 - distanceIndex;
toColumnIndex = fromColumnIndex + 2 + distanceIndex;
}
if ((distanceIndex == 0) || (this . boardState [node . originalRowIndex] [node . originalColumnIndex] . getKingPredicate () == 1))
if (toRowIndex >= 0)
if (toRowIndex < this . rowCount)
if (toColumnIndex >= 0)
if (toColumnIndex < this . columnCount)
if ((this . boardState [toRowIndex] [toColumnIndex] == null) && (! ((toRowIndex == node . originalRowIndex) && (toColumnIndex == node . originalColumnIndex))))
if (this . getCheckerPieceCount (player, node . capturePath, node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) == 0)
if (this . getCheckerPieceCount (otherPlayer, node . capturePath, node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) == 1)
if (node . capturePath . indexOf ("[" + this . getCheckerPieceRow (node . capturePath, node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) + "," + this . getCheckerPieceColumn (node . capturePath, node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) + "]") == - 1)
{
// SEARCH FOR SUCCESSIVE JUMPS
if (! node . lowerLeftNodes)
node . lowerLeftNodes = new Array ();
node . lowerLeftNodes [distanceIndex] = new Node ();
node . lowerLeftNodes [distanceIndex] . ownerNode = node;
node . lowerLeftNodes [distanceIndex] . upperLeftNodes = null;
node . lowerLeftNodes [distanceIndex] . upperRightNodes = null;
node . lowerLeftNodes [distanceIndex] . lowerLeftNodes = null;
node . lowerLeftNodes [distanceIndex] . lowerRightNodes = null;
node . lowerLeftNodes [distanceIndex] . rowIndex = toRowIndex;
node . lowerLeftNodes [distanceIndex] . columnIndex = toColumnIndex;
node . lowerLeftNodes [distanceIndex] . originalRowIndex = node . originalRowIndex;
node . lowerLeftNodes [distanceIndex] . originalColumnIndex = node . originalColumnIndex;
node . lowerLeftNodes [distanceIndex] . capturePath = node . capturePath + "[" + this . getCheckerPieceRow (node . capturePath, node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) + "," + this . getCheckerPieceColumn (node . capturePath, node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) + "]";
node . lowerLeftNodes [distanceIndex] . move = node . move + "," + toRowIndex + "," + toColumnIndex;
this . scanJumps (player, node . lowerLeftNodes [distanceIndex]);
}
}
// SCAN LOWER-RIGHT
for (distanceIndex = 0; distanceIndex < distanceLimit; distanceIndex = distanceIndex + 1)
{
if (player == "own")
{
toRowIndex = fromRowIndex + 2 + distanceIndex;
toColumnIndex = fromColumnIndex + 2 + distanceIndex;
}
else
{
toRowIndex = fromRowIndex - 2 - distanceIndex;
toColumnIndex = fromColumnIndex - 2 - distanceIndex;
}
if ((distanceIndex == 0) || (this . boardState [node . originalRowIndex] [node . originalColumnIndex] . getKingPredicate () == 1))
if (toRowIndex >= 0)
if (toRowIndex < this . rowCount)
if (toColumnIndex >= 0)
if (toColumnIndex < this . columnCount)
if ((this . boardState [toRowIndex] [toColumnIndex] == null) && (! ((toRowIndex == node . originalRowIndex) && (toColumnIndex == node . originalColumnIndex))))
if (this . getCheckerPieceCount (player, node . capturePath, node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) == 0)
if (this . getCheckerPieceCount (otherPlayer, node . capturePath, node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) == 1)
if (node . capturePath . indexOf ("[" + this . getCheckerPieceRow (node . capturePath, node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) + "," + this . getCheckerPieceColumn (node . capturePath, node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) + "]") == - 1)
{
// SEARCH FOR SUCCESSIVE JUMPS
if (! node . lowerRightNodes)
node . lowerRightNodes = new Array ();
node . lowerRightNodes [distanceIndex] = new Node ();
node . lowerRightNodes [distanceIndex] . ownerNode = node;
node . lowerRightNodes [distanceIndex] . upperLeftNodes = null;
node . lowerRightNodes [distanceIndex] . upperRightNodes = null;
node . lowerRightNodes [distanceIndex] . lowerLeftNodes = null;
node . lowerRightNodes [distanceIndex] . lowerRightNodes = null;
node . lowerRightNodes [distanceIndex] . rowIndex = toRowIndex;
node . lowerRightNodes [distanceIndex] . columnIndex = toColumnIndex;
node . lowerRightNodes [distanceIndex] . originalRowIndex = node . originalRowIndex;
node . lowerRightNodes [distanceIndex] . originalColumnIndex = node . originalColumnIndex;
node . lowerRightNodes [distanceIndex] . capturePath = node . capturePath + "[" + this . getCheckerPieceRow (node . capturePath, node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) + "," + this . getCheckerPieceColumn (node . capturePath, node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) + "]";
node . lowerRightNodes [distanceIndex] . move = node . move + "," + toRowIndex + "," + toColumnIndex;
this . scanJumps (player, node . lowerRightNodes [distanceIndex]);
}
}
// IF NONE OF THE LEAD-NODES ARE USED, THEN RECORD THE MOVE.
if (node . ownerNode != null)
if (node . upperLeftNodes == null)
if (node . upperRightNodes == null)
if (node . lowerLeftNodes == null)
if (node . lowerRightNodes == null)
this . legalJumps . push (node . move);
}
this . getIllegalMovePredicate = function (move)
{
for (var index = 0; index < this . illegalMoves . length; index = index + 1)
if (this . illegalMoves [index] . indexOf (move) == 0)
return (1);
for (var index = 0; index < this . illegalJumps . length; index = index + 1)
if (this . illegalJumps [index] . indexOf (move) == 0)
return (1);
return (0);
}
this . getLegalMovePredicate = function (move)
{
for (var index = 0; index < this . legalMoves . length; index = index + 1)
if (this . legalMoves [index] . indexOf (move) == 0)
return (1);
for (var index = 0; index < this . legalJumps . length; index = index + 1)
if (this . legalJumps [index] . indexOf (move) == 0)
return (1);
return (0);
}
this . getTerminalMovePredicate = function (move)
{
if (this . getMoveCount () == 0)
return (1);
for (var index = 0; index < this . legalMoves . length; index = index + 1)
if (this . legalMoves [index] == move)
return (1);
for (var index = 0; index < this . legalJumps . length; index = index + 1)
if (this . legalJumps [index] == move)
return (1);
return (0);
}
}
function PolishRules ()
{
// STATE
this . boardState = null;
this . rowCount = 0;
this . columnCount = 0;
this . illegalMoves = null;
this . illegalJumps = null;
this . legalMoves = null;
this . legalJumps = null;
this . initiate = function ()
{
this . boardState = new Array ();
this . rowCount = 10;
this . columnCount = 10;
}
this . initialize = function ()
{
for (var rowIndex = 0; rowIndex < this . rowCount; rowIndex = rowIndex + 1)
for (var columnIndex = 0; columnIndex < this . columnCount; columnIndex = columnIndex + 1)
{
if (! this . boardState [rowIndex])
{
this . boardState [rowIndex] = new Array ();
}
this . boardState [rowIndex] [columnIndex] = null;
if ((rowIndex < 4) && ((rowIndex % 2) != (columnIndex % 2)))
{
var checkerPiece = null;
checkerPiece = new CheckerPiece ();
checkerPiece . initiate ();
checkerPiece . initialize ();
checkerPiece . setCoordinates (rowIndex * checkerPiece . getHeight () + rowIndex, columnIndex * checkerPiece . getWidth () + columnIndex);
checkerPiece . setOwnPredicate (0);
this . boardState [rowIndex] [columnIndex] = checkerPiece;
}
if ((rowIndex > 5) && ((rowIndex % 2) != (columnIndex % 2)))
{
var checkerPiece = null;
checkerPiece = new CheckerPiece ();
checkerPiece . initiate ();
checkerPiece . initialize ();
checkerPiece . setCoordinates (rowIndex * checkerPiece . getHeight () + rowIndex, columnIndex * checkerPiece . getWidth () + columnIndex);
checkerPiece . setOwnPredicate (1);
this . boardState [rowIndex] [columnIndex] = checkerPiece;
}
}
}
this . getBoardState = function ()
{
return (this . boardState);
}
this . getRowCount = function ()
{
return (this . rowCount);
}
this . getColumnCount = function ()
{
return (this . columnCount);
}
this . getTranslatedMove = function (move)
{
var moveArray = move . split (",");
move = this . rowCount - 1 - moveArray [0];
for (var index = 1; index < moveArray . length; index = index + 1)
move = move + "," + ((index % 2 ? this . columnCount - 1 : this . rowCount - 1) - moveArray [index]);
return (move);
}
this . evaluate = function (player)
{
var matchCode = (player == "own") ? 1 : 0;
// FIND THE VALID REGULAR-MOVES.
this . illegalMoves = new Array ();
this . legalMoves = new Array ();
for (var rowIndex = 0; rowIndex < this . rowCount; rowIndex = rowIndex + 1)
for (var columnIndex = 0; columnIndex < this . columnCount; columnIndex = columnIndex + 1)
if (this . boardState [rowIndex] [columnIndex])
if (this . boardState [rowIndex] [columnIndex] . getOwnPredicate () == matchCode)
{
var node = new Node ();
node . ownerNode = null;
node . upperLeftNode = null;
node . upperRightNode = null;
node . lowerLeftNode = null;
node . lowerRightNode = null;
node . rowIndex = rowIndex;
node . columnIndex = columnIndex;
node . originalRowIndex = rowIndex;
node . originalColumnIndex = columnIndex;
node . capturePath = "";
node . move = rowIndex + "," + columnIndex;
this . scanMoves (player, node);
}
// FIND THE VALID JUMP-MOVES.
this . illegalJumps = new Array ();
this . legalJumps = new Array ();
for (var rowIndex = 0; rowIndex < this . rowCount; rowIndex = rowIndex + 1)
for (var columnIndex = 0; columnIndex < this . columnCount; columnIndex = columnIndex + 1)
if (this . boardState [rowIndex] [columnIndex])
if (this . boardState [rowIndex] [columnIndex] . getOwnPredicate () == matchCode)
{
var node = new Node ();
node . ownerNode = null;
node . upperLeftNodes = null;
node . upperRightNodes = null;
node . lowerLeftNodes = null;
node . lowerRightNodes = null;
node . rowIndex = rowIndex;
node . columnIndex = columnIndex;
node . originalRowIndex = rowIndex;
node . originalColumnIndex = columnIndex;
node . capturePath = "";
node . move = rowIndex + "," + columnIndex;
this . scanJumps (player, node);
}
// IF THERE ARE ANY VALID JUMP-MOVES, THEN ERASE THE REGULAR-MOVES.
if (this . legalJumps . length > 0)
{
this . illegalMoves = this . legalMoves;
this . legalMoves = new Array ();
}
// IN INTERNATIONAL CHECKERS (AND VARIANTS), ONLY THE LONGEST JUMPS MAY BE USED, SO FILTER OUT THE SHORT ONES.
var index = 0;
var longestJumpLength = 0;
var jumps = this . legalJumps;
this . legalJumps = new Array ();
// FIND THE LENGTH OF THE LONGEST JUMP.
for (index = 0; index < jumps . length; index = index + 1)
{
var jumpArray = jumps [index] . split (",");
if (jumpArray . length > longestJumpLength)
longestJumpLength = jumpArray . length;
}
// ACCEPT ONLY THE LONGEST JUMPS.
for (index = 0; index < jumps . length; index = index + 1)
{
var jumpArray = jumps [index] . split (",");
if (jumpArray . length == longestJumpLength)
this . legalJumps . push (jumps [index]);
}
// RECORD THE VALID MOVES/JUMPS IN THE MESSAGE BOX UNDER 'NOTES'.
if (player == "own")
if (this . legalMoves . length > 0)
{
var list = "";
for (var index = 0; index < this . legalMoves . length; index = index + 1)
list = list + this . legalMoves [index] + "\n";
messageBox . addMessage ("Notes", "Available Moves\n\n" + list);
}
if (player == "own")
if (this . legalJumps . length > 0)
{
var list = "";
for (var index = 0; index < this . legalJumps . length; index = index + 1)
list = list + this . legalJumps [index] + "\n";
messageBox . addMessage ("Notes", "Available Jumps\n\n" + list);
}
}
this . getMoveCount = function ()
{
return (this . legalMoves . length + this . legalJumps . length);
}
this . getCheckerPieceCount = function (player, capturePath, ignoreRowIndex, ignoreColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex)
{
var matchCode = (player == "own") ? 1 : 0;
var checkerPieceCount = 0;
var rowStep = 0;
var columnStep = 0;
if (fromRowIndex < toRowIndex) rowStep = 1;
if (fromRowIndex > toRowIndex) rowStep = - 1;
if (fromColumnIndex < toColumnIndex) columnStep = 1;
if (fromColumnIndex > toColumnIndex) columnStep = - 1;
var rowIndex = fromRowIndex + rowStep;
var columnIndex = fromColumnIndex + columnStep;
var index = 0;
var initialValue = 0;
var rowLimit = fromRowIndex < toRowIndex ? toRowIndex - fromRowIndex - 1 : fromRowIndex - toRowIndex - 1;
var columnLimit = fromColumnIndex < toColumnIndex ? toColumnIndex - fromColumnIndex - 1 : fromColumnIndex - toColumnIndex - 1;
var limit = rowLimit > columnLimit ? rowLimit : columnLimit;
for (index = initialValue; index < limit; index = index + 1)
{
var capturedPredicate;
capturedPredicate = 0;
if (capturePath != null)
if (capturePath . indexOf ("[" + rowIndex + "," + columnIndex + "]") != - 1)
capturedPredicate = 1;
if (rowIndex >= 0)
if (rowIndex <= 11)
if (columnIndex >= 0)
if (columnIndex <= 11)
if (capturedPredicate == 0)
if (! ((rowIndex == ignoreRowIndex) && (columnIndex == ignoreColumnIndex)))
if (this . boardState [rowIndex] [columnIndex])
if (this . boardState [rowIndex] [columnIndex] . getOwnPredicate () == matchCode)
checkerPieceCount = checkerPieceCount + 1;
if (capturedPredicate == 1) checkerPieceCount = checkerPieceCount + 1; // added on 2009-06-28 to follow the rule of not jumping over pieces that were removed during this jump
rowIndex = rowIndex + rowStep;
columnIndex = columnIndex + columnStep;
}
return (checkerPieceCount);
}
this . getCheckerPieceRow = function (capturePath, ignoreRowIndex, ignoreColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex)
{
var checkerPieceRow = null;
var rowStep = 0;
var columnStep = 0;
if (fromRowIndex < toRowIndex) rowStep = 1;
if (fromRowIndex > toRowIndex) rowStep = - 1;
if (fromColumnIndex < toColumnIndex) columnStep = 1;
if (fromColumnIndex > toColumnIndex) columnStep = - 1;
var rowIndex = fromRowIndex + rowStep;
var columnIndex = fromColumnIndex + columnStep;
var index = 0;
var initialValue = 0;
var rowLimit = fromRowIndex < toRowIndex ? toRowIndex - fromRowIndex - 1 : fromRowIndex - toRowIndex - 1;
var columnLimit = fromColumnIndex < toColumnIndex ? toColumnIndex - fromColumnIndex - 1 : fromColumnIndex - toColumnIndex - 1;
var limit = rowLimit > columnLimit ? rowLimit : columnLimit;
for (index = initialValue; index < limit; index = index + 1)
{
var capturedPredicate;
capturedPredicate = 0;
if (capturePath != null)
if (capturePath . indexOf ("[" + rowIndex + "," + columnIndex + "]") != - 1)
capturedPredicate = 1;
if (rowIndex >= 0)
if (rowIndex <= 11)
if (columnIndex >= 0)
if (columnIndex <= 11)
if (capturedPredicate == 0)
if (! ((rowIndex == ignoreRowIndex) && (columnIndex == ignoreColumnIndex)))
if (this . boardState [rowIndex] [columnIndex])
checkerPieceRow = rowIndex;
rowIndex = rowIndex + rowStep;
columnIndex = columnIndex + columnStep;
}
return (checkerPieceRow);
}
this . getCheckerPieceColumn = function (capturePath, ignoreRowIndex, ignoreColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex)
{
var checkerPieceColumn = null;
var rowStep = 0;
var columnStep = 0;
if (fromRowIndex < toRowIndex) rowStep = 1;
if (fromRowIndex > toRowIndex) rowStep = - 1;
if (fromColumnIndex < toColumnIndex) columnStep = 1;
if (fromColumnIndex > toColumnIndex) columnStep = - 1;
var rowIndex = fromRowIndex + rowStep;
var columnIndex = fromColumnIndex + columnStep;
var index = 0;
var initialValue = 0;
var rowLimit = fromRowIndex < toRowIndex ? toRowIndex - fromRowIndex - 1 : fromRowIndex - toRowIndex - 1;
var columnLimit = fromColumnIndex < toColumnIndex ? toColumnIndex - fromColumnIndex - 1 : fromColumnIndex - toColumnIndex - 1;
var limit = rowLimit > columnLimit ? rowLimit : columnLimit;
for (index = initialValue; index < limit; index = index + 1)
{
var capturedPredicate;
capturedPredicate = 0;
if (capturePath != null)
if (capturePath . indexOf ("[" + rowIndex + "," + columnIndex + "]") != - 1)
capturedPredicate = 1;
if (rowIndex >= 0)
if (rowIndex <= 11)
if (columnIndex >= 0)
if (columnIndex <= 11)
if (capturedPredicate == 0)
if (! ((rowIndex == ignoreRowIndex) && (columnIndex == ignoreColumnIndex)))
if (this . boardState [rowIndex] [columnIndex])
checkerPieceColumn = columnIndex;
rowIndex = rowIndex + rowStep;
columnIndex = columnIndex + columnStep;
}
return (checkerPieceColumn);
}
this . scanMoves = function (player, node)
{
var matchCode = (player == "own") ? 1 : 0;
var distanceLimit = this . rowCount > this . columnCount ? this . rowCount : this . columnCount;
var distanceIndex;
var fromRowIndex;
var fromColumnIndex;
var toRowIndex;
var toColumnIndex;
fromRowIndex = node . rowIndex;
fromColumnIndex = node . columnIndex;
// SCAN UPPER-LEFT
for (distanceIndex = 0; distanceIndex < distanceLimit; distanceIndex = distanceIndex + 1)
{
if (player == "own")
{
toRowIndex = fromRowIndex - 1 - distanceIndex;
toColumnIndex = fromColumnIndex - 1 - distanceIndex;
}
else
{
toRowIndex = fromRowIndex + 1 + distanceIndex;
toColumnIndex = fromColumnIndex + 1 + distanceIndex;
}
if ((distanceIndex == 0) || (this . boardState [node . originalRowIndex] [node . originalColumnIndex] . getKingPredicate () == 1))
if (toRowIndex >= 0)
if (toRowIndex < this . rowCount)
if (toColumnIndex >= 0)
if (toColumnIndex < this . columnCount)
if (this . boardState [toRowIndex] [toColumnIndex] == null)
if (this . getCheckerPieceCount ("own", "", node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) == 0)
if (this . getCheckerPieceCount ("opponent", "", node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) == 0)
this . legalMoves . push (fromRowIndex + "," + fromColumnIndex + "," + toRowIndex + "," + toColumnIndex);
}
// SCAN UPPER-RIGHT
for (distanceIndex = 0; distanceIndex < distanceLimit; distanceIndex = distanceIndex + 1)
{
if (player == "own")
{
toRowIndex = fromRowIndex - 1 - distanceIndex;
toColumnIndex = fromColumnIndex + 1 + distanceIndex;
}
else
{
toRowIndex = fromRowIndex + 1 + distanceIndex;
toColumnIndex = fromColumnIndex - 1 - distanceIndex;
}
if ((distanceIndex == 0) || (this . boardState [node . originalRowIndex] [node . originalColumnIndex] . getKingPredicate () == 1))
if (toRowIndex >= 0)
if (toRowIndex < this . rowCount)
if (toColumnIndex >= 0)
if (toColumnIndex < this . columnCount)
if (this . boardState [toRowIndex] [toColumnIndex] == null)
if (this . getCheckerPieceCount ("own", "", node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) == 0)
if (this . getCheckerPieceCount ("opponent", "", node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) == 0)
this . legalMoves . push (fromRowIndex + "," + fromColumnIndex + "," + toRowIndex + "," + toColumnIndex);
}
// SCAN LOWER-LEFT IF KING
if (this . boardState [node . originalRowIndex] [node . originalColumnIndex] . getKingPredicate () == 1)
for (distanceIndex = 0; distanceIndex < distanceLimit; distanceIndex = distanceIndex + 1)
{
if (player == "own")
{
toRowIndex = fromRowIndex + 1 + distanceIndex;
toColumnIndex = fromColumnIndex - 1 - distanceIndex;
}
else
{
toRowIndex = fromRowIndex - 1 - distanceIndex;
toColumnIndex = fromColumnIndex + 1 + distanceIndex;
}
if ((distanceIndex == 0) || (this . boardState [node . originalRowIndex] [node . originalColumnIndex] . getKingPredicate () == 1))
if (toRowIndex >= 0)
if (toRowIndex < this . rowCount)
if (toColumnIndex >= 0)
if (toColumnIndex < this . columnCount)
if (this . boardState [toRowIndex] [toColumnIndex] == null)
if (this . boardState [fromRowIndex] [fromColumnIndex] . getKingPredicate () == 1)
if (this . getCheckerPieceCount ("own", "", node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) == 0)
if (this . getCheckerPieceCount ("opponent", "", node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) == 0)
this . legalMoves . push (fromRowIndex + "," + fromColumnIndex + "," + toRowIndex + "," + toColumnIndex);
}
// SCAN LOWER-RIGHT IF KING
if (this . boardState [node . originalRowIndex] [node . originalColumnIndex] . getKingPredicate () == 1)
for (distanceIndex = 0; distanceIndex < distanceLimit; distanceIndex = distanceIndex + 1)
{
if (player == "own")
{
toRowIndex = fromRowIndex + 1 + distanceIndex;
toColumnIndex = fromColumnIndex + 1 + distanceIndex;
}
else
{
toRowIndex = fromRowIndex - 1 - distanceIndex;
toColumnIndex = fromColumnIndex - 1 - distanceIndex;
}
if ((distanceIndex == 0) || (this . boardState [node . originalRowIndex] [node . originalColumnIndex] . getKingPredicate () == 1))
if (toRowIndex >= 0)
if (toRowIndex < this . rowCount)
if (toColumnIndex >= 0)
if (toColumnIndex < this . columnCount)
if (this . boardState [toRowIndex] [toColumnIndex] == null)
if (this . boardState [fromRowIndex] [fromColumnIndex] . getKingPredicate () == 1)
if (this . getCheckerPieceCount ("own", "", node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) == 0)
if (this . getCheckerPieceCount ("opponent", "", node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) == 0)
this . legalMoves . push (fromRowIndex + "," + fromColumnIndex + "," + toRowIndex + "," + toColumnIndex);
}
}
this . scanJumps = function (player, node)
{
var otherPlayer = (player == "own") ? "opponent" : "own";
var matchCode = (player == "own") ? 1 : 0;
var distanceLimit = this . rowCount > this . columnCount ? this . rowCount : this . columnCount;
var distanceIndex;
var fromRowIndex;
var fromColumnIndex;
var toRowIndex;
var toColumnIndex;
fromRowIndex = node . rowIndex;
fromColumnIndex = node . columnIndex;
// SCAN UPPER-LEFT
for (distanceIndex = 0; distanceIndex < distanceLimit; distanceIndex = distanceIndex + 1)
{
if (player == "own")
{
toRowIndex = fromRowIndex - 2 - distanceIndex;
toColumnIndex = fromColumnIndex - 2 - distanceIndex;
}
else
{
toRowIndex = fromRowIndex + 2 + distanceIndex;
toColumnIndex = fromColumnIndex + 2 + distanceIndex;
}
if ((distanceIndex == 0) || (this . boardState [node . originalRowIndex] [node . originalColumnIndex] . getKingPredicate () == 1))
if (toRowIndex >= 0)
if (toRowIndex < this . rowCount)
if (toColumnIndex >= 0)
if (toColumnIndex < this . columnCount)
if (this . boardState [toRowIndex] [toColumnIndex] == null)
if (this . getCheckerPieceCount (player, node . capturePath, node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) == 0)
if (this . getCheckerPieceCount (otherPlayer, node . capturePath, node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) == 1)
if (node . capturePath . indexOf ("[" + this . getCheckerPieceRow (node . capturePath, node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) + "," + this . getCheckerPieceColumn (node . capturePath, node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) + "]") == - 1)
{
// SEARCH FOR SUCCESSIVE JUMPS
if (! node . upperLeftNodes)
node . upperLeftNodes = new Array ();
node . upperLeftNodes [distanceIndex] = new Node ();
node . upperLeftNodes [distanceIndex] . ownerNode = node;
node . upperLeftNodes [distanceIndex] . upperLeftNodes = null;
node . upperLeftNodes [distanceIndex] . upperRightNodes = null;
node . upperLeftNodes [distanceIndex] . lowerLeftNodes = null;
node . upperLeftNodes [distanceIndex] . lowerRightNodes = null;
node . upperLeftNodes [distanceIndex] . rowIndex = toRowIndex;
node . upperLeftNodes [distanceIndex] . columnIndex = toColumnIndex;
node . upperLeftNodes [distanceIndex] . originalRowIndex = node . originalRowIndex;
node . upperLeftNodes [distanceIndex] . originalColumnIndex = node . originalColumnIndex;
node . upperLeftNodes [distanceIndex] . capturePath = node . capturePath + "[" + this . getCheckerPieceRow (node . capturePath, node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) + "," + this . getCheckerPieceColumn (node . capturePath, node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) + "]";
node . upperLeftNodes [distanceIndex] . move = node . move + "," + toRowIndex + "," + toColumnIndex;
this . scanJumps (player, node . upperLeftNodes [distanceIndex]);
}
}
// SCAN UPPER-RIGHT
for (distanceIndex = 0; distanceIndex < distanceLimit; distanceIndex = distanceIndex + 1)
{
if (player == "own")
{
toRowIndex = fromRowIndex - 2 - distanceIndex;
toColumnIndex = fromColumnIndex + 2 + distanceIndex;
}
else
{
toRowIndex = fromRowIndex + 2 + distanceIndex;
toColumnIndex = fromColumnIndex - 2 - distanceIndex;
}
if ((distanceIndex == 0) || (this . boardState [node . originalRowIndex] [node . originalColumnIndex] . getKingPredicate () == 1))
if (toRowIndex >= 0)
if (toRowIndex < this . rowCount)
if (toColumnIndex >= 0)
if (toColumnIndex < this . columnCount)
if (this . boardState [toRowIndex] [toColumnIndex] == null)
if (this . getCheckerPieceCount (player, node . capturePath, node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) == 0)
if (this . getCheckerPieceCount (otherPlayer, node . capturePath, node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) == 1)
if (node . capturePath . indexOf ("[" + this . getCheckerPieceRow (node . capturePath, node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) + "," + this . getCheckerPieceColumn (node . capturePath, node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) + "]") == - 1)
{
// SEARCH FOR SUCCESSIVE JUMPS
if (! node . upperRightNodes)
node . upperRightNodes = new Array ();
node . upperRightNodes [distanceIndex] = new Node ();
node . upperRightNodes [distanceIndex] . ownerNode = node;
node . upperRightNodes [distanceIndex] . upperLeftNodes = null;
node . upperRightNodes [distanceIndex] . upperRightNodes = null;
node . upperRightNodes [distanceIndex] . lowerLeftNodes = null;
node . upperRightNodes [distanceIndex] . lowerRightNodes = null;
node . upperRightNodes [distanceIndex] . rowIndex = toRowIndex;
node . upperRightNodes [distanceIndex] . columnIndex = toColumnIndex;
node . upperRightNodes [distanceIndex] . originalRowIndex = node . originalRowIndex;
node . upperRightNodes [distanceIndex] . originalColumnIndex = node . originalColumnIndex;
node . upperRightNodes [distanceIndex] . capturePath = node . capturePath + "[" + this . getCheckerPieceRow (node . capturePath, node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) + "," + this . getCheckerPieceColumn (node . capturePath, node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) + "]";
node . upperRightNodes [distanceIndex] . move = node . move + "," + toRowIndex + "," + toColumnIndex;
this . scanJumps (player, node . upperRightNodes [distanceIndex]);
}
}
// SCAN LOWER-LEFT
for (distanceIndex = 0; distanceIndex < distanceLimit; distanceIndex = distanceIndex + 1)
{
if (player == "own")
{
toRowIndex = fromRowIndex + 2 + distanceIndex;
toColumnIndex = fromColumnIndex - 2 - distanceIndex;
}
else
{
toRowIndex = fromRowIndex - 2 - distanceIndex;
toColumnIndex = fromColumnIndex + 2 + distanceIndex;
}
if ((distanceIndex == 0) || (this . boardState [node . originalRowIndex] [node . originalColumnIndex] . getKingPredicate () == 1))
if (toRowIndex >= 0)
if (toRowIndex < this . rowCount)
if (toColumnIndex >= 0)
if (toColumnIndex < this . columnCount)
if (this . boardState [toRowIndex] [toColumnIndex] == null)
if (this . getCheckerPieceCount (player, node . capturePath, node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) == 0)
if (this . getCheckerPieceCount (otherPlayer, node . capturePath, node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) == 1)
if (node . capturePath . indexOf ("[" + this . getCheckerPieceRow (node . capturePath, node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) + "," + this . getCheckerPieceColumn (node . capturePath, node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) + "]") == - 1)
{
// SEARCH FOR SUCCESSIVE JUMPS
if (! node . lowerLeftNodes)
node . lowerLeftNodes = new Array ();
node . lowerLeftNodes [distanceIndex] = new Node ();
node . lowerLeftNodes [distanceIndex] . ownerNode = node;
node . lowerLeftNodes [distanceIndex] . upperLeftNodes = null;
node . lowerLeftNodes [distanceIndex] . upperRightNodes = null;
node . lowerLeftNodes [distanceIndex] . lowerLeftNodes = null;
node . lowerLeftNodes [distanceIndex] . lowerRightNodes = null;
node . lowerLeftNodes [distanceIndex] . rowIndex = toRowIndex;
node . lowerLeftNodes [distanceIndex] . columnIndex = toColumnIndex;
node . lowerLeftNodes [distanceIndex] . originalRowIndex = node . originalRowIndex;
node . lowerLeftNodes [distanceIndex] . originalColumnIndex = node . originalColumnIndex;
node . lowerLeftNodes [distanceIndex] . capturePath = node . capturePath + "[" + this . getCheckerPieceRow (node . capturePath, node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) + "," + this . getCheckerPieceColumn (node . capturePath, node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) + "]";
node . lowerLeftNodes [distanceIndex] . move = node . move + "," + toRowIndex + "," + toColumnIndex;
this . scanJumps (player, node . lowerLeftNodes [distanceIndex]);
}
}
// SCAN LOWER-RIGHT
for (distanceIndex = 0; distanceIndex < distanceLimit; distanceIndex = distanceIndex + 1)
{
if (player == "own")
{
toRowIndex = fromRowIndex + 2 + distanceIndex;
toColumnIndex = fromColumnIndex + 2 + distanceIndex;
}
else
{
toRowIndex = fromRowIndex - 2 - distanceIndex;
toColumnIndex = fromColumnIndex - 2 - distanceIndex;
}
if ((distanceIndex == 0) || (this . boardState [node . originalRowIndex] [node . originalColumnIndex] . getKingPredicate () == 1))
if (toRowIndex >= 0)
if (toRowIndex < this . rowCount)
if (toColumnIndex >= 0)
if (toColumnIndex < this . columnCount)
if (this . boardState [toRowIndex] [toColumnIndex] == null)
if (this . getCheckerPieceCount (player, node . capturePath, node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) == 0)
if (this . getCheckerPieceCount (otherPlayer, node . capturePath, node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) == 1)
if (node . capturePath . indexOf ("[" + this . getCheckerPieceRow (node . capturePath, node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) + "," + this . getCheckerPieceColumn (node . capturePath, node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) + "]") == - 1)
{
// SEARCH FOR SUCCESSIVE JUMPS
if (! node . lowerRightNodes)
node . lowerRightNodes = new Array ();
node . lowerRightNodes [distanceIndex] = new Node ();
node . lowerRightNodes [distanceIndex] . ownerNode = node;
node . lowerRightNodes [distanceIndex] . upperLeftNodes = null;
node . lowerRightNodes [distanceIndex] . upperRightNodes = null;
node . lowerRightNodes [distanceIndex] . lowerLeftNodes = null;
node . lowerRightNodes [distanceIndex] . lowerRightNodes = null;
node . lowerRightNodes [distanceIndex] . rowIndex = toRowIndex;
node . lowerRightNodes [distanceIndex] . columnIndex = toColumnIndex;
node . lowerRightNodes [distanceIndex] . originalRowIndex = node . originalRowIndex;
node . lowerRightNodes [distanceIndex] . originalColumnIndex = node . originalColumnIndex;
node . lowerRightNodes [distanceIndex] . capturePath = node . capturePath + "[" + this . getCheckerPieceRow (node . capturePath, node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) + "," + this . getCheckerPieceColumn (node . capturePath, node . originalRowIndex, node . originalColumnIndex, fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex) + "]";
node . lowerRightNodes [distanceIndex] . move = node . move + "," + toRowIndex + "," + toColumnIndex;
this . scanJumps (player, node . lowerRightNodes [distanceIndex]);
}
}
// IF NONE OF THE LEAD-NODES ARE USED, THEN RECORD THE MOVE.
if (node . ownerNode != null)
if (node . upperLeftNodes == null)
if (node . upperRightNodes == null)
if (node . lowerLeftNodes == null)
if (node . lowerRightNodes == null)
this . legalJumps . push (node . move);
}
this . getIllegalMovePredicate = function (move)
{
for (var index = 0; index < this . illegalMoves . length; index = index + 1)
if (this . illegalMoves [index] . indexOf (move) == 0)
return (1);
for (var index = 0; index < this . illegalJumps . length; index = index + 1)
if (this . illegalJumps [index] . indexOf (move) == 0)
return (1);
return (0);
}
this . getLegalMovePredicate = function (move)
{
for (var index = 0; index < this . legalMoves . length; index = index + 1)
if (this . legalMoves [index] . indexOf (move) == 0)
return (1);
for (var index = 0; index < this . legalJumps . length; index = index + 1)
if (this . legalJumps [index] . indexOf (move) == 0)
return (1);
return (0);
}
this . getTerminalMovePredicate = function (move)
{
if (this . getMoveCount () == 0)
return (1);
for (var index = 0; index < this . legalMoves . length; index = index + 1)
if (this . legalMoves [index] == move)
return (1);
for (var index = 0; index < this . legalJumps . length; index = index + 1)
if (this . legalJumps [index] == move)
return (1);
return (0);
}
}
function Checkers ()
{
// STATE
this . gameCode = null;
this . ownPin = null;
this . opponentPin = null;
this . currentPlayerPin = null;
this . rules = null;
this . ownMove = null;
this . opponentMove = null;
this . trace = null;
this . showJumpMarkers = null;
this . connectingPredicate = 0;
this . gameExistsPredicate = 0;
this . opponentPreviousMove = null;
this . midjumpPredicate = 0;
this . captures = null;
// INTERFACE
this . division = null;
this . checkerPanel = null;
this . checkerBoard = null;
this . cache = null;
// RESOURCES
this . defaultRules = null;
this . americanRules = null;
this . brazilianRules = null;
this . canadianRules = null;
this . polishRules = null;
// TIME-RELATED ENTITIES
this . connectTimeDelay = 0;
this . connectTimeLimit = 0;
this . connectTimeCount = 0;
this . receiveTimeDelay = 0;
this . receiveTimeLimit = 0;
this . receiveTimeCount = 0;
this . cachePictures = function ()
{
this . cache = new Array ();
this . cache [ 0] = new Image (); this . cache [ 0] . src = "/games/checkers/Checkers/pictures/marker.on.start.up.left.jpg";
this . cache [ 1] = new Image (); this . cache [ 1] . src = "/games/checkers/Checkers/pictures/marker.on.start.up.right.jpg";
this . cache [ 2] = new Image (); this . cache [ 2] . src = "/games/checkers/Checkers/pictures/marker.on.start.down.left.jpg";
this . cache [ 3] = new Image (); this . cache [ 3] . src = "/games/checkers/Checkers/pictures/marker.on.start.down.right.jpg";
this . cache [ 4] = new Image (); this . cache [ 4] . src = "/games/checkers/Checkers/pictures/marker.off.start.up.left.jpg";
this . cache [ 5] = new Image (); this . cache [ 5] . src = "/games/checkers/Checkers/pictures/marker.off.start.up.right.jpg";
this . cache [ 6] = new Image (); this . cache [ 6] . src = "/games/checkers/Checkers/pictures/marker.off.start.down.left.jpg";
this . cache [ 7] = new Image (); this . cache [ 7] . src = "/games/checkers/Checkers/pictures/marker.off.start.down.right.jpg";
this . cache [ 8] = new Image (); this . cache [ 8] . src = "/games/checkers/Checkers/pictures/marker.on.stop.jpg";
this . cache [ 9] = new Image (); this . cache [ 9] . src = "/games/checkers/Checkers/pictures/marker.off.stop.jpg";
this . cache [10] = new Image (); this . cache [10] . src = "/games/checkers/Checkers/pictures/marker.on.step.up.left.jpg";
this . cache [11] = new Image (); this . cache [11] . src = "/games/checkers/Checkers/pictures/marker.on.step.up.right.jpg";
this . cache [12] = new Image (); this . cache [12] . src = "/games/checkers/Checkers/pictures/marker.on.step.down.left.jpg";
this . cache [13] = new Image (); this . cache [13] . src = "/games/checkers/Checkers/pictures/marker.on.step.down.right.jpg";
this . cache [14] = new Image (); this . cache [14] . src = "/games/checkers/Checkers/pictures/marker.off.step.up.left.jpg";
this . cache [15] = new Image (); this . cache [15] . src = "/games/checkers/Checkers/pictures/marker.off.step.up.right.jpg";
this . cache [16] = new Image (); this . cache [16] . src = "/games/checkers/Checkers/pictures/marker.off.step.down.left.jpg";
this . cache [17] = new Image (); this . cache [17] . src = "/games/checkers/Checkers/pictures/marker.off.step.down.right.jpg";
this . cache [18] = new Image (); this . cache [18] . src = "/games/checkers/Checkers/pictures/marker.on.capture.jpg";
this . cache [19] = new Image (); this . cache [19] . src = "/games/checkers/Checkers/pictures/marker.off.capture.jpg";
this . cache [20] = new Image (); this . cache [20] . src = "/games/checkers/Checkers/pictures/piece.primary.soldier.png";
this . cache [21] = new Image (); this . cache [21] . src = "/games/checkers/Checkers/pictures/piece.primary.king.png";
this . cache [22] = new Image (); this . cache [22] . src = "/games/checkers/Checkers/pictures/piece.secondary.soldier.png";
this . cache [23] = new Image (); this . cache [23] . src = "/games/checkers/Checkers/pictures/piece.secondary.king.png";
this . cache [24] = new Image (); this . cache [24] . src = "/games/checkers/Checkers/pictures/piece.primary.soldier.gif";
this . cache [25] = new Image (); this . cache [25] . src = "/games/checkers/Checkers/pictures/piece.primary.king.gif";
this . cache [26] = new Image (); this . cache [26] . src = "/games/checkers/Checkers/pictures/piece.secondary.soldier.gif";
this . cache [27] = new Image (); this . cache [27] . src = "/games/checkers/Checkers/pictures/piece.secondary.king.gif";
this . cache [28] = new Image (); this . cache [28] . src = "/games/checkers/Checkers/pictures/piece.primary.soldier.png";
this . cache [29] = new Image (); this . cache [29] . src = "/games/checkers/Checkers/pictures/piece.primary.king.png";
this . cache [30] = new Image (); this . cache [30] . src = "/games/checkers/Checkers/pictures/piece.secondary.soldier.png";
this . cache [31] = new Image (); this . cache [31] . src = "/games/checkers/Checkers/pictures/piece.secondary.king.png";
this . cache [32] = new Image (); this . cache [32] . src = "/games/checkers/Checkers/pictures/piece.primary.soldier.gif";
this . cache [33] = new Image (); this . cache [33] . src = "/games/checkers/Checkers/pictures/piece.primary.king.gif";
this . cache [34] = new Image (); this . cache [34] . src = "/games/checkers/Checkers/pictures/piece.secondary.soldier.gif";
this . cache [35] = new Image (); this . cache [35] . src = "/games/checkers/Checkers/pictures/piece.secondary.king.gif";
this . cache [36] = new Image (); this . cache [36] . src = "/games/checkers/Checkers/pictures/marker.on.dot.jpg";
this . cache [37] = new Image (); this . cache [37] . src = "/games/checkers/Checkers/pictures/marker.off.dot.jpg";
}
this . initiate = function ()
{
this . division = documentObjectModel . createNode ("div");
this . checkerPanel = new CheckerPanel ();
this . checkerPanel . initiate ();
this . checkerBoard = new CheckerBoard ();
this . checkerBoard . initiate ();
this . defaultRules = new Rules ();
this . defaultRules . initiate ();
this . americanRules = new AmericanRules ();
this . americanRules . initiate ();
this . brazilianRules = new BrazilianRules ();
this . brazilianRules . initiate ();
this . canadianRules = new CanadianRules ();
this . canadianRules . initiate ();
this . polishRules = new PolishRules ();
this . polishRules . initiate ();
this . cachePictures ();
}
this . initialize = function ()
{
this . gameCode = null;
this . opponentPreviousMove = "";
this . connectTimeLimit = 180000;
this . connectTimeDelay = 4000;
this . connectTimeCount = 0;
this . receiveTimeLimit = 120000;
this . receiveTimeDelay = 500;
this . receiveTimeCount = 0;
this . division . id = "Checkers";
this . division . style . position = "relative";
this . division . style . height = "400px";
this . division . style . width = (175 + 8 * 50) + "px";
this . division . style . marginLeft = "-" + ((175 + 8 * 50) / 2) + "px";
this . division . style . left = "50%";
this . checkerPanel . initialize ();
this . checkerBoard . initialize ();
this . defaultRules . initialize ();
this . americanRules . initialize ();
this . brazilianRules . initialize ();
this . canadianRules . initialize ();
this . polishRules . initialize ();
this . checkerPanel . that = this;
this . checkerBoard . that = this;
this . setRules ("default");
}
this . start = function ()
{
this . checkerPanel . displayOpponentPlayerTypePrompt (this . setOpponentPlayerTypeDelegate);
return;
};
this . recordGame = function (winnerTitle)
{
var gameName;
var styleName;
var opponentType;
// Only the primary player is to record a game.
if (this . playerRank . toLowerCase () == "primary")
{
gameName = "Checkers";
if (this . styleName . toLowerCase () == "default")
{
styleName = "default";
}
else if (this . styleName . toLowerCase () == "international")
{
styleName = "International";
}
else if (this . styleName . toLowerCase () == "american")
{
styleName = "American";
}
else if (this . styleName . toLowerCase () == "brazilian")
{
styleName = "Brazilian";
}
else if (this . styleName . toLowerCase () == "canadian")
{
styleName = "Canadian";
}
else if (this . styleName . toLowerCase () == "polish")
{
styleName = "Polish";
}
else
{
styleName = "";
}
if (this . opponentPlayerType == "virtual")
{
opponentType = "virtual";
}
else
{
opponentType = "actual";
}
if (winnerTitle . toLowerCase () == "primary")
{
winnerTitle = "primary";
}
else if (winnerTitle . toLowerCase () == "secondary")
{
winnerTitle = "secondary";
}
else
{
winnerTitle = "";
}
networkSocket . execute ("/games/checkers/Checkers/php" + "/" + "recordGame" + "." + "p" + "h" + "p?refreshCode=" + getRefreshCode () + "&gameName=" + gameName + "&styleName=" + styleName + "&opponentType=" + opponentType + "&winnerTitle=" + winnerTitle);
}
return;
};
this . setOpponentPlayerTypeDelegate = function (opponentPlayerType)
{
if (opponentPlayerType == "virtual")
{
checkers . opponentPlayerType = opponentPlayerType;
checkers . checkerPanel . hideOpponentPlayerTypePrompt ();
checkers . activateKayla ();
}
else
{
checkers . opponentPlayerType = opponentPlayerType;
checkers . checkerPanel . hideOpponentPlayerTypePrompt ();
checkers . checkerPanel . displayPinPrompt (checkers . ownPin, checkers . setOpponentPinDelegate);
checkers . checkerPanel . opponentPinArea . focus ();
}
return;
};
this . activateKayla = function ()
{
kayla = new Kayla ();
kayla . initialize ();
this . ownPin = "0000"; // fake pin -- allow the guest to move first
this . opponentPin = "0001"; // fake pin -- allow the guest to move first
this . playerRank = "primary"; // Forced.
this . checkerPanel . showPlayerMessage (this . playerRank);
this . checkerPanel . displayRulesPrompt (this . setRulesDelegate);
return;
};
this . setOpponentPinDelegate = function (pin)
{
checkers . setOpponentPin (pin);
return;
};
this . setOpponentPin = function (pin)
{
if (this . connectingPredicate == 1) return;
this . connectingPredicate = 1;
this . opponentPin = pin;
this . checkerPanel . showPins (this . ownPin, this . opponentPin);
messageBox . addMessage ("Events", "Connecting: " + this . opponentPin);
if (this . opponentPlayerType == "actual")
{
networkSocket . execute ("/games/checkers/Checkers/php/connect.php?refreshcode=" + getRefreshCode () + "&ownPin=" + this . ownPin + "&opponentPin=" + this . opponentPin);
}
this . connectTimeCount = 0;
this . connect ();
}
this . connect = function ()
{
this . checkerPanel . setMessage ("low", "connecting");
if (this . connectTimeCount > this . connectTimeLimit)
{
this . connectTimeCount = 0;
this . checkerPanel . setMessage ("high", "continue?");
this . checkerPanel . showOkayButton ("checkers . connect ()");
}
else if (this . gameCode == null) // IF NOT CONNECTED, THEN FIND OUT IF A CONNECTION HAS BEEN MADE.
{
if (this . opponentPlayerType == "actual")
{
networkSocket . execute ("/games/checkers/Checkers/php/getGameCode.php?refreshcode=" + getRefreshCode () + "&ownPin=" + this . ownPin + "&opponentPin=" + this . opponentPin);
}
setTimeout ("checkers . connect ()", this . connectTimeDelay);
this . connectTimeCount = this . connectTimeCount + this . connectTimeDelay;
}
else
{
this . checkerPanel . showPlayerMessage (this . playerRank);
if (this . playerRank == "primary")
{
this . showJumpMarkers = true;
this . checkerPanel . displayRulesPrompt (this . setRulesDelegate);
}
else
{
messageBox . addMessage ("Events", "Asking for the rules.");
this . showJumpMarkers = false;
this . checkerBoard . reverse ();
this . checkerBoard . update ();
this . receiveTimeCount = 0;
this . getRules ();
}
}
}
this . setRulesDelegate = function (rules)
{
checkers . setRules (rules);
checkers . startTurn ();
}
this . setRules = function (rulesName)
{
this . styleName = rulesName;
checkers . gameExistsPredicate = 1;
if (this . rules) if (this . rules != this . defaultRules) return;
if (rulesName != "default")
{
if (this . playerRank == "primary")
messageBox . addMessage ("Events", "Sending the rules: " + rulesName);
if (this . opponentPlayerType == "actual")
{
networkSocket . execute ("/games/checkers/Checkers/php/setRulesName.php?refreshcode=" + getRefreshCode () + "&gameCode=" + this . gameCode + "&ownPin=" + this . ownPin + "&opponentPin=" + this . opponentPin + "&rulesName=" + rulesName);
}
this . checkerPanel . showRulesName (rulesName);
}
if (rulesName == "default") this . rules = this . defaultRules;
if (rulesName == "International") this . rules = this . polishRules;
if (rulesName == "American") this . rules = this . americanRules;
if (rulesName == "Brazilian") this . rules = this . brazilianRules;
if (rulesName == "Canadian") this . rules = this . canadianRules;
if (rulesName == "Polish") this . rules = this . polishRules;
this . division . style . width = (2 + 200 + this . rules . getColumnCount () * (this . checkerBoard . squareWidth + this . checkerBoard . borderThickness)) + "px";
this . division . style . marginLeft = "-" + ((2 + 200 + this . rules . getColumnCount () * (this . checkerBoard . squareWidth + this . checkerBoard . borderThickness)) / 2) + "px";
documentObjectModel . getNode ("game") . style . height = (this . rules . getRowCount () * (this . checkerBoard . squareHeight + this . checkerBoard . borderThickness)) + "px";
this . checkerPanel . setRowPixelCount (this . rules . getRowCount () * (this . checkerBoard . squareHeight + this . checkerBoard . borderThickness) - 1);
this . checkerBoard . setBoardState (this . rules . getBoardState (), this . playerRank);
}
this . getRules = function ()
{
this . checkerPanel . setMessage ("low", "waiting for your friend to select the rules");
if (this . receiveTimeCount > this . receiveTimeLimit)
{
this . receiveTimeCount = 0;
this . checkerPanel . setMessage ("high", "continue?");
this . checkerPanel . showOkayButton ("checkers . getRules ()");
}
else if (this . rulesName == null) // IF NOT CONNECTED, THEN FIND OUT IF A CONNECTION HAS BEEN MADE.
{
if (this . opponentPlayerType == "actual")
{
networkSocket . execute ("/games/checkers/Checkers/php/getRulesName.php?refreshcode=" + getRefreshCode () + "&gameCode=" + this . gameCode + "&ownPin=" + this . ownPin + "&opponentPin=" + this . opponentPin);
}
setTimeout ("checkers . getRules ()", this . receiveTimeDelay);
this . receiveTimeCount = this . receiveTimeCount + this . receiveTimeDelay;
}
else
{
messageBox . addMessage ("Events", "Received the rules: " + this . rulesName);
this . setRules (this . rulesName);
this . endTurn ();
}
}
this . startTurn = function ()
{
this . showJumpMarkers = true;
this . checkerPanel . showCaptures (this . captures);
this . ownMove = null;
this . midjumpPredicate = 0;
this . rules . evaluate ("own");
if (this . rules . getMoveCount () == 0)
{
this . recordGame ("secondary");
if (this . opponentPlayerType == "virtual")
{
this . checkerPanel . setMessage ("high", "The machine won. Thank you for playing.");
}
else
{
this . checkerPanel . setMessage ("high", "Your friend won. Thank you for playing.");
}
this . checkerBoard . disconnectEventCues ();
}
else
{
this . checkerBoard . connectEventCues ();
this . checkerPanel . setMessage ("medium", "your turn");
}
}
this . endTurn = function ()
{
this . showJumpMarkers = false;
this . checkerPanel . hideCaptures ();
this . captures = null;
this . opponentMove = null;
this . checkerBoard . hideMarkers ();
this . rules . evaluate ("opponent");
if (this . rules . getMoveCount () == 0)
{
this . recordGame ("primary");
this . checkerPanel . setMessage ("high", "congratulations!");
this . checkerBoard . disconnectEventCues ();
}
else
{
this . checkerBoard . disconnectEventCues ();
this . receiveTimeCount = 0;
if (this . opponentPlayerType == "virtual")
{
this . checkerPanel . setMessage ("low", "machine's turn");
}
else
{
this . checkerPanel . setMessage ("low", "your friend's turn");
}
messageBox . addMessage ("Events", "Asking for the opponent's move.");
setTimeout ("checkers . getMove ();", 1000);
}
}
this . setMove = function (fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex)
{
this . checkerBoard . hideMarkers ();
this . checkerBoard . boardState [toRowIndex] [toColumnIndex] = this . checkerBoard . boardState [fromRowIndex] [fromColumnIndex];
this . checkerBoard . boardState [fromRowIndex] [fromColumnIndex] = null;
if ((this . ownMove == null) || (this . ownMove == ""))
this . captures = new Array ();
this . captureCheckerPiece (fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex);
this . ownMove = (this . ownMove ? this . ownMove : fromRowIndex + "," + fromColumnIndex) + "," + toRowIndex + "," + toColumnIndex;
this . opponentMove = null;
if (this . rules . getTerminalMovePredicate (this . ownMove))
{
messageBox . addMessage ("Events", "Sending the move: " + this . ownMove);
var ownMoveArray = this . ownMove . split (",");
if (ownMoveArray [ownMoveArray . length - 2] == 0)
this . checkerBoard . boardState [ownMoveArray [ownMoveArray . length - 2]] [ownMoveArray [ownMoveArray . length - 1]] . setKingPredicate (1);
if (this . opponentPlayerType == "actual")
{
networkSocket . execute ("/games/checkers/Checkers/php/setMove.php?refreshcode=" + getRefreshCode () + "&gameCode=" + this . gameCode + "&ownPin=" + this . ownPin + "&opponentPin=" + this . opponentPin + "&move=" + this . ownMove);
}
this . endTurn ();
}
else
{
messageBox . addMessage ("Events", "Setting the move: " + this . ownMove);
this . midjumpPredicate = 1;
this . checkerBoard . connectEventCues ();
}
}
this . getMove = function ()
{
if (this . gameExistsPredicate == 0)
{
this . checkerPanel . setMessage ("high", "this game is no longer active");
return;
}
if (this . opponentPlayerType == "virtual")
{
this . checkerPanel . setMessage ("low", "machine's turn");
}
else
{
this . checkerPanel . setMessage ("low", "your friend's turn");
}
if (this . receiveTimeCount > this . receiveTimeLimit)
{
this . receiveTimeCount = 0;
this . checkerPanel . setMessage ("high", "continue?");
this . checkerPanel . showOkayButton ("checkers . getMove ()");
}
else if (this . opponentMove == this . opponentPreviousMove)
{
// SENDMOVE FAILED, SO RESEND IT.
this . opponentMove = null;
messageBox . addMessage ("Events", "Resending move: " + this . ownMove);
messageBox . addMessage ("Warnings", "Network Error\nThe move had to be resent: " + this . ownMove);
if (this . opponentPlayerType == "actual")
{
networkSocket . execute ("/games/checkers/Checkers/php/setMove.php?refreshcode=" + getRefreshCode () + "&gameCode=" + this . gameCode + "&ownPin=" + this . ownPin + "&opponentPin=" + this . opponentPin + "&move=" + this . ownMove);
}
this . receiveTimeCount = this . receiveTimeCount + this . receiveTimeDelay;
setTimeout ("checkers . getMove ()", this . receiveTimeDelay);
}
else if ((this . opponentMove == null) || (this . opponentMove == this . ownMove))
{
if (this . opponentPlayerType == "actual")
{
networkSocket . execute ("/games/checkers/Checkers/php/getMove.php?refreshcode=" + getRefreshCode () + "&gameCode=" + this . gameCode + "&ownPin=" + this . ownPin + "&opponentPin=" + this . opponentPin);
}
this . receiveTimeCount = this . receiveTimeCount + this . receiveTimeDelay;
setTimeout ("checkers . getMove ()", this . receiveTimeDelay);
}
else
{
this . getMovePredicate = 0;
messageBox . addMessage ("Events", "Received the opponents move: " + this . opponentMove);
this . opponentPreviousMove = this . opponentMove;
this . trace = "";
var opponentMoveArray = this . opponentMove . split (",");
// DUPLICATE THE OPPONENT'S MOVE ON THIS BOARD.
this . captures = new Array ();
for (var index = 0; index < (opponentMoveArray . length - 2); index = index + 2)
{
var fromRowIndex = parseInt (opponentMoveArray [index + 0]);
var fromColumnIndex = parseInt (opponentMoveArray [index + 1]);
var toRowIndex = parseInt (opponentMoveArray [index + 2]);
var toColumnIndex = parseInt (opponentMoveArray [index + 3]);
this . trace = this . trace + (this . trace == "" ? "" : ",") + fromRowIndex + "," + fromColumnIndex;
this . captureCheckerPiece (fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex);
this . checkerBoard . boardState [toRowIndex] [toColumnIndex] = this . checkerBoard . boardState [fromRowIndex] [fromColumnIndex];
this . checkerBoard . boardState [fromRowIndex] [fromColumnIndex] = null;
}
this . trace = this . trace + (this . trace == "" ? "" : ",") + parseInt (opponentMoveArray [opponentMoveArray . length - 2]) + "," + parseInt (opponentMoveArray [opponentMoveArray . length - 1]);
// IF THE OPPONENT REACHED KINGS ROW ON THEIR LAST JUMP OR MOVE, THEN KING THEM.
if (opponentMoveArray [opponentMoveArray . length - 2] == (this . rules . getRowCount () - 1))
this . checkerBoard . boardState [opponentMoveArray [opponentMoveArray . length - 2]] [opponentMoveArray [opponentMoveArray . length - 1]] . setKingPredicate (1);
this . checkerBoard . showMarkers (this . trace);
this . checkerBoard . update ();
this . startTurn ();
}
}
this . captureCheckerPiece = function (fromRowIndex, fromColumnIndex, toRowIndex, toColumnIndex)
{
var rowStep = 0;
var columnStep = 0;
if (fromRowIndex < toRowIndex) rowStep = 1;
if (fromRowIndex > toRowIndex) rowStep = - 1;
if (fromColumnIndex < toColumnIndex) columnStep = 1;
if (fromColumnIndex > toColumnIndex) columnStep = - 1;
var rowIndex = fromRowIndex + rowStep;
var columnIndex = fromColumnIndex + columnStep;
var index = 0;
var initialValue = 0;
var rowLimit = fromRowIndex < toRowIndex ? toRowIndex - fromRowIndex - 1 : fromRowIndex - toRowIndex - 1;
var columnLimit = fromColumnIndex < toColumnIndex ? toColumnIndex - fromColumnIndex - 1 : fromColumnIndex - toColumnIndex - 1;
var limit = rowLimit > columnLimit ? rowLimit : columnLimit;
for (index = initialValue; index < limit; index = index + 1)
{
// LET THE PLAYER KNOW WHICH PIECE WAS CAPTURED, IF ANY.
if (this . checkerBoard . boardState [rowIndex] [columnIndex] != null)
if (this . checkerBoard . boardState [rowIndex] [columnIndex] . getKingPredicate () == 0)
this . captures . push ("Soldier");
if (this . checkerBoard . boardState [rowIndex] [columnIndex] != null)
if (this . checkerBoard . boardState [rowIndex] [columnIndex] . getKingPredicate () == 1)
this . captures . push ("King");
if (this . checkerBoard . boardState [rowIndex] [columnIndex])
this . trace = this . trace + (this . trace == "" ? "" : ",") + "" + rowIndex + "x," + columnIndex + "x";
if (this . checkerBoard . boardState [rowIndex] [columnIndex])
this . checkerBoard . boardState [rowIndex] [columnIndex] . getNode () . style . display = "none";
this . checkerBoard . boardState [rowIndex] [columnIndex] = null;
rowIndex = rowIndex + rowStep;
columnIndex = columnIndex + columnStep;
}
if (this . showJumpMarkers == true) {this . checkerBoard . showJumpMarkers (this . trace);}
this . checkerBoard . update ();
}
this . getNode = function ()
{
return (this . division);
}
this . render = function (renderNode)
{
documentObjectModel . appendNode (renderNode, this . getNode ());
this . checkerPanel . render (this . getNode ());
this . checkerBoard . render (this . getNode ());
}
this . setOwnPin = function (pin)
{
this . ownPin = pin;
}
}
var kayla = null;
var checkers = null;
var checkersAreaNode = null;
var internetClient = null;
var documentObjectModel = null;
var networkSocket = null;
var messageBox = null;
var setupCheckers = function ()
{
var documentObjectModel = new DocumentObjectModel ();
documentObjectModel . initiate ();
documentObjectModel . initialize ();
var division = documentObjectModel . createNode ("div");
var span = documentObjectModel . createNode ("span");
var link = documentObjectModel . createNode ("a");
division . style . color = "#545f36";
division . style . textAlign = "center";
span . style . fontSize = "18px";
span . style . borderTop = "#757e87 0px solid";
span . style . display = "block";
span . style . width = "100%";
span . style . color = "#3e4625";
link . style . color = "#545f36";
link . target = "_blank";
link . href = "http://www.mozilla.com/firefox";
documentObjectModel . appendNode (documentObjectModel . getNode ("game"), division);
documentObjectModel . appendNode (division, span);
documentObjectModel . appendNode (division, documentObjectModel . createNode ("br"));
if (navigator . userAgent . indexOf ("MSIE") != - 1)
{
documentObjectModel . appendNode (division, documentObjectModel . createTextNode ("Internet Explorer requires additional time to initialize the game."));
// documentObjectModel . appendNode (division, documentObjectModel . createTextNode ("Internet Explorer requires extra time to initialize the game."));
// documentObjectModel . appendNode (division, documentObjectModel . createNode ("br"));
// documentObjectModel . appendNode (division, documentObjectModel . createTextNode ("Internet Explorer also requires extra time to start the game, so please be patient."));
// documentObjectModel . appendNode (division, documentObjectModel . createNode ("br"));
// documentObjectModel . appendNode (division, documentObjectModel . createTextNode ("Please consider using "));
// documentObjectModel . appendNode (division, link);
// documentObjectModel . appendNode (division, documentObjectModel . createTextNode ("."));
// documentObjectModel . appendNode (division, documentObjectModel . createNode ("br"));
}
documentObjectModel . appendNode (span, documentObjectModel . createTextNode ("loading ..."));
// documentObjectModel . appendNode (link, documentObjectModel . createTextNode ("Firefox"));
setTimeout ("initializeCheckers ();", 500);
}
var initializeCheckers = function ()
{
messageBox = new Development . MessageBox ();
messageBox . initiate ();
documentObjectModel = new DocumentObjectModel ();
documentObjectModel . initiate ();
documentObjectModel . initialize ();
networkSocket = new NetworkSocket ();
networkSocket . initiate ();
networkSocket . initialize ();
checkersAreaNode = documentObjectModel . getNode ("game");
checkers = new Checkers ();
checkers . initiate ();
checkers . initialize ();
checkers . setOwnPin ('2596');
documentObjectModel . getNode ("game") . style . textAlign = "left";
documentObjectModel . clearNodes (checkersAreaNode);
checkers . render (checkersAreaNode);
checkers . start ();
checkers . checkerPanel . opponentPinArea . focus ();
checkersAreaNode = null;
}
var getRefreshCode = function ()
{
var date = new Date ();
var refreshCode = "";
refreshCode = refreshCode + getPaddedText (date . getUTCFullYear () , "0", 4);
refreshCode = refreshCode + getPaddedText (date . getUTCMonth () , "0", 2);
refreshCode = refreshCode + getPaddedText (date . getUTCDay () , "0", 2);
refreshCode = refreshCode + getPaddedText (date . getUTCHours () , "0", 2);
refreshCode = refreshCode + getPaddedText (date . getUTCMinutes () , "0", 2);
refreshCode = refreshCode + getPaddedText (date . getUTCSeconds () , "0", 2);
refreshCode = refreshCode + getPaddedText (date . getUTCMilliseconds () , "0", 3);
return (refreshCode);
}
var getPaddedText = function (text, padCharacter, characterCount)
{
text = text . toString ();
while (text . length < characterCount)
text = padCharacter + "" + text;
return (text);
}