gameboard.js

/* Dynamic Game Board */

var gposa, gposb, gworda, gwordb;
var gcurmove = -1;
var gboarda, gboardb;
var index = 0;

function gInit() {
    if (!document.getElementById) return;
    if (gposa) {
        gboarda = new Array();
        for (var i = 0; i < 49; i++) {
            gboarda[i] = document.getElementById("gba" + i);
            if (!gboarda[i]) return;
        }
    }
    if (gposb) {
        gboardb = new Array();
        for (var i = 0; i < 49; i++) {
            gboardb[i] = document.getElementById("gbb" + i);
            if (!gboardb[i]) return;
        }
    }
    if (gposa) gcurmove = gposa.length;
    if (gposb && gposb.length > gcurmove) gcurmove = gposb.length;

    var autoMode = getParameterByName("auto");

    if (autoMode) {
        setTimeout(function () {
            autoMove(500)
        }, 500);
    } else {
        gShowScores();
    }
}

function autoMove(time) {
    var options = document.getElementById("movesel").options;
    options.selectedIndex = index;
    gSetMove(index++);
    if (index < 48) {
        setTimeout(function () {
            autoMove(time)
        }, time);
    } else {
        gShowScores();
    }
}

function gShowScores() {
    var pts = document.getElementsByClassName('pts');
    var ptsArray = Array.prototype.slice.call(pts, 0);
    ptsArray.forEach(function (e) {
        e.className = 'pts';
    })
    var gameReportTbl = document.getElementById('gameReport');
    gameReportTbl.className = '';
}

function getParameterByName(name)
{
    name = name.replace(/[\[]/, "\\\[").replace(/[\]]/, "\\\]");
    var regexS = "[\\?&]" + name + "=([^&#]*)";
    var regex = new RegExp(regexS);
    var results = regex.exec(window.location.search);
    if(results == null)
        return "";
    else
        return decodeURIComponent(results[1].replace(/\+/g, " "));
}

function gShowWord(board, dir, pos, len) {
    if (dir == "H") {
        board[pos].className = board[pos].className + "r";
        pos++;
        while (len-- > 2) {
            board[pos].className = board[pos].className + "lr";
            pos++;
        }
        board[pos].className = board[pos].className + "l";
    } else {
        board[pos].className = "b" + board[pos].className;
        pos += 7;
        while (len-- > 2) {
            board[pos].className = "tb" + board[pos].className;
            pos += 7;
        }
        board[pos].className = "t" + board[pos].className;
    }
}

function gHideWord(board, dir, pos, len) {
    if (dir == "H") {
        while (len-- > 0) {
            board[pos].className = (board[pos].className.replace("l", "")).replace("r", "");
            pos++;
        }
    } else {
        while (len-- > 0) {
            board[pos].className = (board[pos].className.replace("t", "")).replace("b", "");
            pos += 7;
        }
    }
}

function gDoMove(board, pos, word) {
    if (pos == null) return;
    board[pos].className = "";
    if (word)
        for (var i = 0; i < word.length; i++) {
            if (word[i]) {
                var a = word[i].split(" ");
                if (a[0] == "+")
                    gShowWord(board, a[1], parseInt(a[2]), a[3].length);
                else
                    gHideWord(board, a[1], parseInt(a[2]), a[3].length);
            }
        }
}

function gUndoMove(board, pos, word) {
    if (pos == null) return;
    if (word)
        for (var i = word.length - 1; i >= 0; i--) {
            if (word[i]) {
                var a = word[i].split(" ");
                if (a[0] == "+")
                    gHideWord(board, a[1], parseInt(a[2]), a[3].length);
                else
                    gShowWord(board, a[1], parseInt(a[2]), a[3].length);
            }
        }
    board[pos].className = "empty";
}

function gSetMove(m) {
    if (gcurmove < 0) return;
    while (gcurmove < m) {
        if (gposa)
            gDoMove(gboarda, gposa[gcurmove]);
        if (gposb)
            gDoMove(gboardb, gposb[gcurmove]);
        gcurmove++;
    }
    while (gcurmove > m) {
        gcurmove--;
        if (gposa)
            gUndoMove(gboarda, gposa[gcurmove]);
        if (gposb)
            gUndoMove(gboardb, gposb[gcurmove]);
    }
}