// ==UserScript==
// @name       Dixit cards replace
// @version    5.8.3
// @description  Edit script params to play your own deck
// @include http://www.boiteajeux.net/jeux/dix/partie.php*
// @copyright  2014, Ochinpo

// Cards dir (no trailing slash)
// var cardsBaseUrl = 'https://dl.dropboxusercontent.com/u/33454051/dixit';
var cardsBaseUrl = 'https://dl.dropboxusercontent.com/u/107673401/Dixit_200x293';
var totalCards = 344;
var imgExtension = 'jpg';

// Get url param
function getUrlParameter(param)
{
    var pageUrl = window.location.search.substring(1);
    var urlParts = pageUrl.split('&');
    for (var i = 0; i < urlParts.length; i++)
    {
        var parameterName = urlParts[i].split('=');
        if (parameterName[0] == param)
        {
            return parameterName[1];
        }
    }
}

// Random with seed
function Rc4Random(seed)
{
    var keySchedule = [];
    var keySchedule_i = 0;
    var keySchedule_j = 0;

    function init(seed) {
        for (var i = 0; i < 256; i++)
            keySchedule[i] = i;

        var j = 0;
        for (var i = 0; i < 256; i++)
        {
            j = (j + keySchedule[i] + seed.charCodeAt(i % seed.length)) % 256;

            var t = keySchedule[i];
            keySchedule[i] = keySchedule[j];
            keySchedule[j] = t;
        }
    }
    init(seed);

    function getRandomByte() {
        keySchedule_i = (keySchedule_i + 1) % 256;
        keySchedule_j = (keySchedule_j + keySchedule[keySchedule_i]) % 256;

        var t = keySchedule[keySchedule_i];
        keySchedule[keySchedule_i] = keySchedule[keySchedule_j];
        keySchedule[keySchedule_j] = t;

        return keySchedule[(keySchedule[keySchedule_i] + keySchedule[keySchedule_j]) % 256];
    }

    this.getRandomNumber = function() {
        var number = 0;
        var multiplier = 1;
        for (var i = 0; i < 8; i++) {
            number += getRandomByte() * multiplier;
            multiplier *= 256;
        }
        return number / 18446744073709551616;
    }
}


// Get game ID from URL
var gameId = getUrlParameter('id');

// Create random generator based on gameId
var rc4Rand = new Rc4Random(gameId);

// Create shuffle method
//+ Jonas Raoni Soares Silva
//@ http://jsfromhell.com/array/shuffle [v1.0]
var shuffle = function(o) {
    for(var j, x, i = o.length; i; j = parseInt(rc4Rand.getRandomNumber() * i), x = o[--i], o[i] = o[j], o[j] = x);
    return o;
}

// Get random 84 cards
var cardIds = [];
for (var i = 1; i <= totalCards; i++) {
   cardIds.push(i);
}

var cardIds = shuffle(cardIds);
//console.debug(cardIds);

$(function() {
    unsafeWindow.montreCarte = function(i) {
        $("#dvGdeCarte").html('<img src="' + cardsBaseUrl + '/' + i + '.' + imgExtension + '">');
        $("#dvGdeCarte").show();
    }

    $('img')
        .filter(function() {
            return $(this).attr('src').match(/[0-9]+\.png/);
        }).each(function(i, el) {
            // Get src
            var src = $(el).attr('src');

            // get onmouseover
            var onmouseover = $(el).attr('onmouseover');

            // Get originalId
            var originalCardId = src.match(/[0-9]+/)[0];

            // Get new card ID
            var newCardId = cardIds[originalCardId - 1];
            //console.debug('original - new', originalCardId, newCardId);

            // Replace image path
            var newSrc = src.replace(originalCardId, newCardId)
                .replace('img', cardsBaseUrl)
                .replace('png', imgExtension);

            $(el).attr('src', newSrc);

            // Replace onmouseover
            var newOnmouseover = onmouseover.replace(originalCardId, newCardId);

            $(el).attr('onmouseover', newOnmouseover);
        });
});

// ==/UserScript==