Introducing DOCJSLIB Version 3.0: Connect-Three Board Game - Doc JavaScript | WebReference

Introducing DOCJSLIB Version 3.0: Connect-Three Board Game - Doc JavaScript


The Connect-Three Board Game's Code

<HTML>
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<TITLE>DOCJSLIB Version 3.0: Connect-Three Board Game - Doc JavaScript</TITLE>
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<SCRIPT LANGUAGE="JavaScript1.2">
<!--
// --- Cut -- 'N -- Paste --- from Here
// Copyright (c) 2000 internet.com Corp.
// http://www.webreference.com/js/
// License is granted if and only if this entire
// copyright notice is included. By Yehuda Shiran.
// Begin DOCJSLIB version 3.1. Released Novemeber 12, 1998.
// This is DOCJSLIB library.
// It begins in this comment and continues until the matching comment
// The matching comment is "End DOCJSLIB ...".
// It should not be normally touched.
// docjslib is a cross-browser library.
// You should not worry about the browser in your code.
// This version includes the following functions (numbers to the
//      left designate version of DOCJSLIB where first introduced:
//   3.1 fix a bug in findHighestZ (change () to [] for documentDivs)
//   3.0 docjslib_doThisCommandEveryIntervalMS (executes a command every
//       inteval)
//   3.0 docjslib_getWindowWidth (gets the width of the browser's window,
//       in pixels)
//   3.0 docjslib_getWindowHeight (gets the height of the window,
//       in pixels)
//   3.0 docjslib_getPageScrollLeft (gets the width of the scrolled area,
//       pixels)
//   3.0 docjslib_getPageScrollTop (get the height of the scrolled area,
//       pixels)
//   1.0 docjslib_getSrc (gets the image's URL of a DHTML element, url)
//   1.0 docjslib_setSrc (sets the image's URL of a DHTML element)
//   2.0 docjslib_getWidth (gets the DHTML element's width, pixels)
//   2.0 docjslib_getVisibility (gets the DHTML element's visibility,
//       true or false)
//   2.0 docjslib_setVisibility (sets the DHTML element's visibility,
//       true or false)
//   2.0 docjslib_setPosFromLeft (sets the DHTML element's horiz.
//       position, pixels from left)
//   3.0 docjslib_setPosFromTop (sets the DHTML element's vertical
//       position, pixels from TOP)
//   2.0 docjslib_setZposition (set the Z position of the DHTML element,
//       integer)
//   3.0 docjslib_findHighestZ (find the highest Z of all pages's DHTML
//       elements)
//   1.0 docjslib_makeClickedImage (creates an image-based DHTML element
//       with event handling capability)
//   3.0 docjslib_makeLinkedImage (creates an image-based DHTML element
//       with a built-in link to a developer-specified location)
//   2.0 docjslib_makeBox (creates a DHTML container)
//
var IE4 = (document.all) ? true : false;
var NS4 = (document.layers) ? true : false;
function docjslib_doThisCommandEveryIntervalMS(command, interval) {
  setInterval(eval('"' + command + '"'), interval);
}
function docjslib_getWindowWidth() {
  if (NS4) {return window.innerWidth}
  else {return document.body.clientWidth}
}
function docjslib_getWindowHeight() {
  if (NS4) {return window.innerHeight}
  else {return document.body.clientHeight}
}
function docjslib_getPageScrollLeft() {
  if (NS4) {return window.pageXOffset}
  else {return document.body.scrollLeft}
}
function docjslib_getPageScrollTop() {
  if (NS4) {return window.pageYOffset}
  else {return document.body.scrollTop}
}
function docjslib_getSrc(id) {
  if (NS4) {return eval("document." + id + ".document." + id + "img.src")}
  else {return eval("document.all." + id + "img.src")}
}
function docjslib_setSrc(id, url) {
  if (NS4) {eval("document." + id + ".document." + id + "img").src = url}
  else {eval("document.all." + id + "img").src = url}
}
function docjslib_getWidth(id) {
  if (NS4) {return eval("document." + id + ".clip.width")}
  else {return eval("document.all." + id + ".style.pixelWidth")}
}
function docjslib_getVisibility(id) {
  if (NS4) {
    if (eval("document." + id).visibility == "show") return true
    else return false;
  }
  else {
   if (eval("document.all." + id).style.visibility == "visible")
     return true
  // (The above two lines should be joined as one line.
  // They have been split for formatting purposes.)
    else return false;
  }
}
function docjslib_setVisibility(id, flag) {
  if (NS4) {
    var str = (flag) ? 'show' : 'hide';
    eval("document." + id).visibility = str;
  }
  else {
    var str = (flag) ? 'visible' : 'hidden';
    eval("document.all." + id).style.visibility = str;
  }
}
function docjslib_setPosFromLeft(id, xCoord) {
  if (NS4) {eval("document." + id).left = xCoord}
  else {eval("document.all." + id).style.left = xCoord}
}
function docjslib_setPosFromTop(id, yCoord) {
  if (NS4) {eval("document." + id).top = yCoord}
  else {eval("document.all." + id).style.top = yCoord}
}
function docjslib_setZposition(id, z) {
  if (NS4) {eval("document." + id).zIndex = z}
  else {eval("document.all." + id).style.zIndex = z}
}
function docjslib_findHighestZ() {
  var documentDivs = new Array();
  if (NS4) {documentDivs = document.layers}
  else {documentDivs = document.all.tags("DIV")};
  var highestZ = 0;
  for (var i = 0; i < documentDivs.length; i++) {
     var zIndex = (NS4) ? documentDivs[i].zIndex :
       documentDivs[i].style.zIndex;
  // (The above two lines should be joined as one line.
  // They have been split for formatting purposes.)
     highestZ = (zIndex > highestZ) ? zIndex : highestZ;
  }
  return highestZ;
}
function docjslib_makeClickedImage(imgID,          // given id
                   imgURL,      // image URL
                   imgHeight,   // image height
                   imgWidth,    // image width
                   imgAlt,      // alternative image
                   posFromLeft, // absolute position from left of window
                   posFromTop,  // absolute position from top of window
                   clickParam1, // parameter passed to "onclick" handler
                   clickParam2) // parameter passed to "onclick" handler
  {
  document.write(
    '<STYLE TYPE="text/css">',
    '#', imgID, ' {',
      'position: absolute;',
      'left: ', posFromLeft, ';',
      'top: ', posFromTop, ';',
      'width: ', imgWidth, ';',
      'z-index: 1',
    '}',
    '</STYLE>',
    '<DIV ID="', imgID, '">',
    '<A HREF="javascript:', "handleImageClick('", imgID, "'", ',',
    clickParam1, ',', clickParam2, ')">',
    '<IMG NAME="', imgID, 'img" ID="', imgID, 'img" SRC="', imgURL,
    '" ALT="', imgAlt, '" BORDER="0" ', 'HEIGHT="', imgHeight, '" WIDTH="',
    imgWidth, '">', '</A></DIV>'
  );
}
function docjslib_makeLinkedImage(imgID,    // given id
                   imgURL,        // image URL
                   linkURL,       // link URL
                   imgHeight,     // image height
                   imgWidth,      // image width
                   imgAlt,        // alternative image
                   posFromLeft,   // absolute position from left of window
                   posFromTop,    // absolute position from top of window
                   imgVisibility, // image visibility  (true of false)
                   imgZindex)     // image Z index
  {
  var visibility = (imgVisibility) ? 'visible' : 'hidden';
  document.write(
    '<STYLE TYPE="text/css">',
    '#', imgID, ' {',
      'position: absolute;',
      'visibility: ', visibility, ';',
      'left: ', posFromLeft, ';',
      'top: ', posFromTop, ';',
      'width: ', imgWidth, ';',
      'z-index:', imgZindex,
    '}',
    '</STYLE>',
    '<DIV ID="', imgID, '">',
    '<A HREF="', linkURL, '">',
    '<IMG NAME="', imgID, 'img" ID="', imgID, 'img" SRC="', imgURL,
    '" ALT="', imgAlt, '" BORDER="0" ', 'HEIGHT="', imgHeight, '"
    WIDTH="', imgWidth, '">', '</A></DIV>'
  );
}
function docjslib_makeBox(boxID, // given id
                 htmlFiller,     // HTML filler
                 boxWidth,       // box width
                 posFromLeft,    // absolute position from left of window
                 posFromTop,     // absolute position from top of window
                 boxBg,          // box background color
                 boxColor,       // html filler text color
                 boxVisibility)  // visibility
 {
  var padding = (NS4) ? '' : 'padding: 3 0 3 3;';
  var visibility = (boxVisibility) ? 'visible' : 'hidden';
  document.write(
    '<STYLE TYPE="text/css">',
    '#', boxID, ' {',
      'position: absolute;',
      'left: ', posFromLeft, '; top: ', posFromTop, ';',
      'width: ', boxWidth, ';',
      'layer-background-color: ', boxBg, ';',
      'background-color: ', boxBg, ';',
      'visibility: ', visibility, ';',
      'border-width: 2;',
      'border-style: solid;',
      'border-color: ', boxColor, ';',
      padding,
      'z-index: 1',
    '}',
    '</STYLE>',
    '<DIV ID="', boxID, '">',
    htmlFiller,
    '</DIV>'
  );
}
//
// End DOCJSLIB Version 3.1
//
// --- Cut -- 'N -- Paste --- Up to Here
function rowComplete() {
  var lastPlayedBy = grid[1][1];
  if ((lastPlayedBy != "") &&
      (grid[2][1] == lastPlayedBy) &&
      (grid[3][1] == lastPlayedBy)) return(true);
  lastPlayedBy = grid[1][2];
  if ((lastPlayedBy != "") &&
      (grid[2][2] == lastPlayedBy) &&
      (grid[3][2] == lastPlayedBy)) return(true);
  lastPlayedBy = grid[1][3];
  if ((lastPlayedBy != "") &&
      (grid[2][3] == lastPlayedBy) &&
      (grid[3][3] == lastPlayedBy)) return(true);
  lastPlayedBy = grid[1][1];
  if ((lastPlayedBy != "") &&
      (grid[1][2] == lastPlayedBy) &&
      (grid[1][3] == lastPlayedBy)) return(true);
  lastPlayedBy = grid[2][1];
  if ((lastPlayedBy != "") &&
      (grid[2][2] == lastPlayedBy) &&
      (grid[2][3] == lastPlayedBy)) return(true);
  lastPlayedBy = grid[3][1];
  if ((lastPlayedBy != "") &&
      (grid[3][2] == lastPlayedBy) &&
      (grid[3][3] == lastPlayedBy)) return(true);
  lastPlayedBy = grid[1][1];
  if ((lastPlayedBy != "") &&
      (grid[2][2] == lastPlayedBy) &&
      (grid[3][3] == lastPlayedBy)) return(true);
  lastPlayedBy = grid[1][3];
  if ((lastPlayedBy != "") &&
      (grid[2][2] == lastPlayedBy) &&
      (grid[3][1] == lastPlayedBy)) return(true);
}
function itsAtie() {
  for( var i = 1; i <= 3; i++)
    for( var j = 1; j <= 3; j++)
      if (grid[i][j] == "") return(false);
  return(true);
}
function handleImageClick(id, param1, param2) {
    if (docjslib_getSrc(id).indexOf('initialbutton.gif') < 0) return;
    if (lastPlayedBy == "o") {
      docjslib_setSrc(id, "xbutton.gif");
      lastPlayedBy = "x";
    }
    else {  // lastPlayedBy = "x"
      docjslib_setSrc(id, "obutton.gif");
      lastPlayedBy = "o";
    }
    grid[param1][param2] = lastPlayedBy;
    if (rowComplete()) {
      alert("The " + lastPlayedBy + " wins");
      window.location.reload();
    }
    else if (itsAtie()) {
           alert("It's a tie");
           window.location.reload();
         }
}
var lastPlayedBy = "o";
var grid = new Array();
grid[1] = new Array();
grid[2] = new Array();
grid[3] = new Array();
for (var i = 1; i <= 3; i++)
  for (var j = 1; j <= 3; j++)
    grid[i][j] = "";
var xBase = 8;
var yBase = 8;
for (var i = 1; i <= 3; i++) {
  for (var j = 1; j <= 3; j++) {
    docjslib_makeClickedImage("box" + i + "" + j,          // id
              "initialbutton.gif",  // URL
              100,                  // height
              100,                  // width
              "game box",           // alternative
               xBase + (i-1) * 108, // position from left
               yBase + (j-1) * 108, // position from top
               i,                   // parameter passed to onclick handler
               j);                  // parameter passed to onclick handler
  }
}
// -->
</SCRIPT>
</BODY>
</HTML>

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Produced by Yehuda Shiran and Tomer Shiran

Created: November 9, 1998
Revised: November 12, 1998

URL: http://www.webreference.com/js/column29/code1.html