//only do anything if on the freecell homepage
if (mw.config.get("wgPageName") == "User:Writ_Keeper/freecell")
{
var pastGameStates = [];
var cardImageMap = {
C2:"/media/wikipedia/commons/6/69/2C.svg",
C3:"/media/wikipedia/commons/7/70/3C.svg",
C4:"/media/wikipedia/commons/2/25/4C.svg",
C5:"/media/wikipedia/commons/6/6d/5C.svg",
C6:"/media/wikipedia/commons/6/62/6C.svg",
C7:"/media/wikipedia/commons/6/68/7C.svg",
C8:"/media/wikipedia/commons/9/94/8C.svg",
C9:"/media/wikipedia/commons/6/63/9C.svg",
C10:"/media/wikipedia/commons/c/c7/10C.svg",
C11:"/media/wikipedia/commons/1/11/JC.svg",
C12:"/media/wikipedia/commons/9/9e/QC.svg",
C13:"/media/wikipedia/commons/e/e1/KC.svg",
C1:"/media/wikipedia/commons/e/eb/AC.svg",
D2:"/media/wikipedia/commons/f/fb/2D.svg",
D3:"/media/wikipedia/commons/5/57/3D.svg",
D4:"/media/wikipedia/commons/c/c7/4D.svg",
D5:"/media/wikipedia/commons/d/d9/5D.svg",
D6:"/media/wikipedia/commons/c/cf/6D.svg",
D7:"/media/wikipedia/commons/5/5a/7D.svg",
D8:"/media/wikipedia/commons/8/80/8D.svg",
D9:"/media/wikipedia/commons/0/09/9D.svg",
D10:"/media/wikipedia/commons/8/83/10D.svg",
D11:"/media/wikipedia/commons/3/33/JD.svg",
D12:"/media/wikipedia/commons/6/63/QD.svg",
D13:"/media/wikipedia/commons/0/06/KD.svg",
D1:"/media/wikipedia/commons/6/6d/AD.svg",
H2:"/media/wikipedia/commons/9/9d/2H.svg",
H3:"/media/wikipedia/commons/3/3a/3H.svg",
H4:"/media/wikipedia/commons/6/6f/4H.svg",
H5:"/media/wikipedia/commons/0/03/5H.svg",
H6:"/media/wikipedia/commons/a/a2/6H.svg",
H7:"/media/wikipedia/commons/e/e1/7H.svg",
H8:"/media/wikipedia/commons/3/34/8H.svg",
H9:"/media/wikipedia/commons/e/e0/9H.svg",
H10:"/media/wikipedia/commons/8/8a/10H.svg",
H11:"/media/wikipedia/commons/1/15/JH.svg",
H12:"/media/wikipedia/commons/d/d2/QH.svg",
H13:"/media/wikipedia/commons/e/e5/KH.svg",
H1:"/media/wikipedia/commons/8/87/AH.svg",
S2:"/media/wikipedia/commons/d/de/2S.svg",
S3:"/media/wikipedia/commons/c/ce/3S.svg",
S4:"/media/wikipedia/commons/c/cc/4S.svg",
S5:"/media/wikipedia/commons/a/ac/5S.svg",
S6:"/media/wikipedia/commons/1/1f/6S.svg",
S7:"/media/wikipedia/commons/a/a1/7S.svg",
S8:"/media/wikipedia/commons/3/36/8S.svg",
S9:"/media/wikipedia/commons/3/31/9S.svg",
S10:"/media/wikipedia/commons/1/16/10S.svg",
S11:"/media/wikipedia/commons/d/d9/JS.svg",
S12:"/media/wikipedia/commons/3/35/QS.svg",
S13:"/media/wikipedia/commons/5/5c/KS.svg",
S1:"/media/wikipedia/commons/2/27/AS.svg"
}
function deal()
{
pastGameStates = [];
$(".cardHolder").empty();
let rng = window.crypto || window.msCrypto;
let deckSize = 52;
let rngArray = new Uint16Array(deckSize);
let rejectArray = new Uint16Array(1);
let maxInt = 65536;
let deck = new Array(deckSize);
for(let i = 0; i < deck.length; i++)
{
deck[i] = i;
}
rng.getRandomValues(rngArray);
for(let i=(deck.length - 1); i >= 1; i--)
{
//discard values greater than the maximum multiple of i+1 below maxInt; these values would skew the distribution
while(rngArray[i] >= Math.floor(maxInt/(i+1)) * (i+1))
{
rng.getRandomValues(rejectArray);
rngArray[i] = rejectArray[0];
}
let tempStorage = deck[i];
let randomIndex = rngArray[i]%(i+1);
deck[i] = deck[randomIndex];
deck[randomIndex] = tempStorage;
deckSize--;
}
let cardIndex = 0;
$("div.cardHolder").droppable();
//now deck is shuffled, deal
for(let i = 1; i <= 4; i++)
{
for(let j = 0; j < 7; j++)
{
addCardToColumn(deck[cardIndex], i);
cardIndex++;
}
}
for(let i = 5; i <= 8; i++)
{
for(let j = 0; j < 6; j++)
{
addCardToColumn(deck[cardIndex], i);
cardIndex++;
}
}
for(let columnIndex = 1; columnIndex <= 8; columnIndex++)
{
refreshDraggability(columnIndex);
}
}
function recordGameState()
{
let gameState = {};
gameState.freecells = [];
gameState.homecells = [];
gameState.columns = [[],[],[],[],[],[],[],[]];
$("#freecellContainer [id^='freecell']").each(function(ind, el){
let cardData = $(el).children("div.card").data("card");
if(typeof cardData == "undefined")
gameState.freecells.push(-1);
else gameState.freecells.push(cardData);
});
$("#freecellContainer [id^='homecell']").each(function(ind, el){
let cardData = $(el).children("div.card").data("card");
if(typeof cardData == "undefined")
gameState.freecells.push(-1);
else gameState.freecells.push(cardData);
});
$("#board [id^='fcColumn']").each(function(ind, el) {
$(el).find("div.card").each(function(ind2, card) {
gameState.columns[ind].push($(card).data("card"));
});
});
return gameState;
}
function createCardData(card)
{
let cardSuit = (Math.floor(card/13)%4);
switch(cardSuit)
{
case 0:
cardSuit = "C";
break;
case 1:
cardSuit = "D";
break;
case 2:
cardSuit = "H";
break;
case 3:
cardSuit = "S";
break;
default:
cardSuit = null;
}
let cardRank = card%13 + 1
return {"card":card, "suit":cardSuit, "rank":cardRank};
}
function undo()
{
gameState = pastGameStates.pop();
if(gameState != null)
{
$(".cardHolder").empty();
for(let i = 0; i < 4; i++)
{
if(gameState.homecells[i] != -1)
{
let homeCardData = createCardData(gameState.homecells[i]);
let newCard = document.createElement("div");
let newCardImg = document.createElement("img");
$(newCard).addClass("card");
$(newCard).data(homeCardData);
$(newCardImg).attr("src", cardImageMap[""+homeCardData.suit+homeCardData.rank]);
$(newCardImg).addClass("cardImg");
$("#homecell" + (i+1)).append(newCard);
$(newCard).addClass("headCard");
$(newCard).droppable()
$(newCard).draggable({revert:attemptCardDrop, greedy:true, disabled:true,revertDuration:0, zIndex:500, stop:cleanCard});
$(newCard).append(newCardImg);
}
if(gameState.freecells[i] != -1)
{
let freeCardData = createCardData(gameState.freecells[i]);
let newCard = document.createElement("div");
let newCardImg = document.createElement("img");
$(newCard).addClass("card");
$(newCard).data(freeCardData);
$(newCardImg).attr("src", cardImageMap[""+freeCardData.suit+freeCardData.rank]);
$(newCardImg).addClass("cardImg");
$("#freecell" + (i+1)).append(newCard);
$(newCard).addClass("headCard");
$(newCard).droppable({"disabled":true});
$(newCard).draggable({revert:attemptCardDrop, greedy:true,revertDuration:0, zIndex:500, stop:cleanCard});
$(newCard).append(newCardImg);
}
}
for(let column = 0; column < 8; column++)
{
let columnArray = gameState.columns[column];
for(let i = 0; i < columnArray.length; i++)
{
addCardToColumn(columnArray[i], column+1);
}
}
for(let columnIndex = 1; columnIndex <= 8; columnIndex++)
{
refreshDraggability(columnIndex);
}
}
}
function autoplay()
{
setTimeout(function()
{
let homeCells = {"C":[0,0],"D":[0,0],"H":[0,0],"S":[0,0]};
let firstFree = 0;
for(let i = 1; i <= 4; i++)
{
if($("#homecell"+ i + " div.card").length > 0)
{
let homeData = $("#homecell"+i + " div.card").data();
homeCells[homeData.suit] = [homeData.rank, i];
}
else if(firstFree == 0)
{
firstFree = i;
}
}
let hasMoved = false;
let columnIndex = 1;
while(columnIndex <= 8 && !hasMoved)
{
let targetCard = $("#fcColumn" + columnIndex + " div.card").last();
if(targetCard != null)
{
let targetCardData = targetCard.data();
let targetOppositeColor = oppositeColorSuits(targetCardData.suit);
if(homeCells[targetCardData.suit][0] == targetCardData.rank - 1
&& homeCells[sameColorSuit(targetCardData.suit)][0] >= targetCardData.rank - 3
&& homeCells[targetOppositeColor[0]][0] >= targetCardData.rank - 2
&& homeCells[targetOppositeColor[1]][0] >= targetCardData.rank - 2)
{
let homeContainer = null;
if(homeCells[targetCardData.suit][1] > 0)
{
homeContainer = $("#homecell" + homeCells[targetCardData.suit][1]);
}
else
{
homeContainer = $("#homecell" + firstFree);
}
hasMoved = true;
targetCard.detach;
homeContainer.append(targetCard);
targetCard.removeClass("tailCard");
targetCard.addClass("headCard");
targetCard.draggable("option","disabled",true);
refreshDraggability(columnIndex);
}
}
columnIndex++;
}
if(hasMoved)
{
autoplay();
}
}, 400);
}
function sameColorSuit(suit)
{
switch(suit)
{
case "C":
return "S";
case "D":
return "H";
case "H":
return "D";
case "S":
return "C";
default: return null;
}
}
function oppositeColorSuits(suit)
{
switch(suit)
{
case "C":
case "S":
return ["D","H"];
case "D":
case "H":
return ["S","C"];
default: return null;
}
}
function refreshDraggability(column)
{
if(column == null)
{
return;
}
let cards = $("#fcColumn" + column + " div.card");
if(cards.length == 0)
{
$("#fcColumn" + column).droppable("option","disabled",false);
return;
}
else
{
$("#fcColumn" + column).droppable("option","disabled",true);
cards.droppable("option","disabled",true);
$(cards[cards.length-1]).draggable("option","disabled",false);
$(cards[cards.length-1]).droppable("option","disabled",false);
let index = cards.length - 2;
let allPrevInOrder = true;
while(index >= 0 && allPrevInOrder)
{
let lowerCard = $(cards[index+1]).data();
let upperCard = $(cards[index]).data();
if(allPrevInOrder && lowerCard.rank == upperCard.rank - 1 && isAlternatingSuit(lowerCard.suit, upperCard.suit))
{
$(cards[index]).draggable("option","disabled",false);
}
else
{
allPrevInOrder = false;
}
index--;
}
}
}
function isAlternatingSuit(lowerSuit, upperSuit)
{
if(upperSuit == "D" || upperSuit == "H")
{
return (lowerSuit == "C" || lowerSuit == "S");
}
return (lowerSuit == "D" || lowerSuit == "H");
}
function addCardToColumn(card, column)
{
let cardData = createCardData(card);
let newCard = document.createElement("div");
let newCardImg = document.createElement("img");
$(newCard).addClass("card");
$(newCard).data(cardData);
$(newCardImg).attr("src", cardImageMap[""+cardData.suit+cardData.rank]);
$(newCardImg).addClass("cardImg");
if($("#fcColumn" + column).children().length == 0)
{
$("#fcColumn" + column).append(newCard);
$(newCard).addClass("headCard");
}
else
{
$("#fcColumn" + column).find("div").droppable("option","disabled",true);
$("#fcColumn" + column).find("div").last().append(newCard);
$(newCard).addClass("tailCard");
}
$(newCard).droppable()
$(newCard).draggable({revert:attemptCardDrop, greedy:true, disabled:true,revertDuration:0, zIndex:500, stop:cleanCard});
$(newCard).append(newCardImg);
}
function cleanCard()
{
$(this).css("top","");
$(this).css("left","");
}
function attemptCardDrop(target)
{
if (target == null || !target)
{
return true;
}
let originalColumn = $(this).parents("div[id^='fcColumn']");
if(originalColumn.length > 0)
{
originalColumn = originalColumn.attr("id").match(/[1-8]/)[0];
}
else
{
originalColumn = null;
}
let numCards = $(this).find("div.card").length + 1;
let targetParent = $(target).parents("div.cardHolder");
let targetInfo = null;
let emptyTarget = false;
if(targetParent.length > 0)
{
targetInfo = targetParent.prop("id").match(/([A-Za-z]+)(\d)/);
emptyTarget = false;
}
else
{
targetInfo = $(target).prop("id").match(/([A-Za-z]+)(\d)/);
emptyTarget = true;
}
let topCardInfo = $(this).data();
let targetCardInfo = $(target).data();
if(targetInfo[1] == "homecell")
{
if(numCards == 1)
{
if((emptyTarget && topCardInfo.rank == 1) ||
(targetCardInfo.suit == topCardInfo.suit && targetCardInfo.rank == topCardInfo.rank - 1))
{
pastGameStates.push(recordGameState());
$(this).detach;
if(emptyTarget)
{
$(target).append($(this));
}
else
{
targetParent.empty();
targetParent.append($(this));
}
$(this).removeClass("tailCard");
$(this).addClass("headCard");
$(this).draggable("option","disabled",true);
refreshDraggability(originalColumn);
autoplay();
}
}
}
else if(targetInfo[1] == "freecell")
{
if(numCards == 1 && emptyTarget)
{
pastGameStates.push(recordGameState());
$(this).detach;
$(target).append($(this));
$(this).removeClass("tailCard");
$(this).addClass("headCard");
refreshDraggability(originalColumn);
autoplay();
}
}
else
{
if(numCards <= calculateCardCount(emptyTarget))
{
if(emptyTarget || (isAlternatingSuit(topCardInfo.suit, targetCardInfo.suit) && topCardInfo.rank == targetCardInfo.rank-1))
{
pastGameStates.push(recordGameState());
$(this).detach;
$(target).append($(this));
if(emptyTarget)
{
$(this).removeClass("tailCard");
$(this).addClass("headCard");
}
else
{
$(target).droppable("option","disabled",true);
$(this).addClass("tailCard");
$(this).removeClass("headCard");
}
refreshDraggability(originalColumn);
autoplay();
}
}
}
return true;
}
function calculateCardCount(emptyTarget)
{
let count = 1;
count += (4 - $("#freecellContainer div[id^='freecell'] img").length);
let emptyColumns = $("#board div.cardHolder:empty").length;
if(emptyTarget)
{
emptyColumns--;
}
count = count * (2 ** emptyColumns);
return count;
}
function init()
{
$(document).on("keydown", function(event)
{
if(event.key == "F2")
{
deal();
return false;
}
else if(event.key == "z" && event.ctrlKey)
{
undo();
return false;
}
else return true;
});
deal();
}
$(document).ready(init);
}
