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index.html
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<!DOCTYPE html>
<!-- FreeCell using svg for the cards - all in one HTML page -->
<html lang=en>
<head>
<link rel="icon" type="image/png" href="jc.png"/>
<link rel="manifest" href="/manifest.json">
<link rel="apple-touch-icon" href="jc192.png">
<meta name="apple-mobile-web-app-capable" content="yes">
<meta name="apple-mobile-web-app-status-bar-style" content="green">
<meta name="apple-mobile-web-app-title" content="FreeCell">
<link rel="canonical" href="https://jcoonrod.github.io" />
<meta http-equiv="Cache-Control" content="no-cache, no-store, must-revalidate" />
<meta name="google" content="notranslate">
<meta http-equiv="Pragma" content="no-cache" />
<meta http-equiv="Expires" content="0" />
<link rel='shortcut icon' href='/jc.png'>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width">
<meta name="theme-color" content="green"/>
<meta name="description" content="One-Click FreeCell Game by John Coonrod"/>
<title>1-Click Freecell</title>
<style>
body {background:green;padding:0;margin:0;font-family:sans-serif;font-weight:bold;}
p, p>a {color:white;}
div.row {display:flex; flex-wrap:nowrap; flex-direction:row; justify-content:space-evenly;}
div.a {position:absolute;background:red;color:white;top:40%;left:40%;padding:1vw;font-size:3vw;}
div.s {width:11%;height:14vw; background:lightgreen;}
div.c {height:80vw;width:11%;position:relative;}
div.r {line-height:85%; letter-spacing:80%; font-size:14vw; color:red; background:white;}
div.b {line-height:85%; letter-spacing:80%; font-size:14vw; background:white;}
</style>
</head>
<body tabindex="-1">
<p>One-Click FreeCell 1.6 💂
<button onclick="shuffle(); deal()">New Game</button>
<button onclick="deal()">Replay</button>
<button onclick="undo()">Undo</button>
</p>
<div class=row>
<div id=s0 class=s onclick="dropFree(0)"></div>
<div id=s1 class=s onclick="dropFree(1)"></div>
<div id=s2 class=s onclick="dropFree(2)"></div>
<div id=s3 class=s onclick="dropFree(3)"></div>
<div id=a0 class=s></div>
<div id=a1 class=s></div>
<div id=a2 class=s></div>
<div id=a3 class=s></div>
</div>
<div class=row> </div>
<div class=row>
<div id=c0 class=c onclick="popStack(0)"></div>
<div id=c1 class=c onclick="popStack(1)"></div>
<div id=c2 class=c onclick="popStack(2)"></div>
<div id=c3 class=c onclick="popStack(3)"></div>
<div id=c4 class=c onclick="popStack(4)"></div>
<div id=c5 class=c onclick="popStack(5)"></div>
<div id=c6 class=c onclick="popStack(6)"></div>
<div id=c7 class=c onclick="popStack(7)"></div>
</div>
<script>
window.onload = () => { 'use strict'; // register service worker
if ('serviceWorker' in navigator) {
navigator.serviceWorker.register('./sw.js');
}
}
// Set up a 1-d array of the unicode values for the cards 0-51
// Note - Unicode sets up 16 cards per suit, including two queens
// Unlike the old game, I want to only use the DOM
// Each move of n cards from x1, iy1 to x2, iy2 (an array of 5 items)
cards = []; // array of card div svg objects
moves = []; // stack of moves that can then be undone
tomove = []; // array of cards to move
deck = []; // sort order for the cards
freecells = [-1,-1,-1,-1]; // holds the cardNo if filled
nopen = 0; // computed # open freecells
nempty = 0; // computed # empty cascades
aces = [-1,-1,-1,-1]; // holds the card value if filled
suits = ["♠","♥","♦","♣"];
faces = ["💂","👸","🤴"]; // emojis for facecards
vals = ['A','2','3','4','5','6','7','8','9','10','J','Q','K'];
var nodes = []; // this gets defined by stackable
var first=0; // index within the nodes for the first that could be moved
var last=0; // " the top card
createCards();
// FUNCTIONS from top down // make numbers bigger for phones
function createCards(){
var size=( screen.width<600 ? 70 : 45);
for (n=0;n<52;n++) { // create 52 svg cards as strings in this array - innerHTML for divs
deck[n]=n; // initialize the deck pre-shuffle
var suit=Math.floor(n/13);
var f=''; if(suit==1 || suit==2) f=' fill="red"'; // optionally paint the red suits red
var val = n % 13;
var ctr = (val<10) ? suits[suit] : faces[val-10];
cards[n]='<svg viewBox="0 0 200 280">'
+ '<rect x="2" y="2" rx="20" ry="20" width="194" height="274" style="fill:white;stroke:black;stroke-width:4;" />'
+ '<text font-size="120" x="97" y="137" text-anchor="middle" alignment-baseline="central"'+f+'>'
+ ctr+'</text><text x="15" y="'+size+'" font-size="'+size+'"'+f+'>'+vals[val]+'</text>'
+ '<text x="'+(190-size)+'" y="'+size+'" font-size="'+size+'"'+f+'>'+suits[suit]+'</text></svg>';
}
}
// a function to shuffle the deck;
function shuffle(){
for(i=0; i<100; i++) { // do 100 random interchanges
j=Math.floor(52*Math.random());
k=Math.floor(52*Math.random());
m=deck[j]; deck[j]=deck[k]; deck[k]=m;
}
}
function deal(){
clearBoard();
var i=0;
var m = setInterval(frame,50);
function frame() { // use interval to deal the cards slowly
if(i==52) {
clearInterval(m);
tryAce();
}else{
j=i%8;
appendCard(deck[i],j);
i++;
}
}
}
function clearBoard(){
moves.length=0; // clear these working arrays
nodes.length=0;
for(j=0;j<8;j++) { // clear cascades
const cascade=document.getElementById("c"+j);
while (cascade.firstChild) cascade.removeChild(cascade.firstChild);
}
for(j=0;j<4;j++) { // clear freecells and aces piles
aces[j]=-1;
document.getElementById("a"+j).innerHTML='';
freecells[j]=-1;
document.getElementById("s"+j).innerHTML='';
}
}
function popStack(j) { // a cascade has been clicked
stackable(j);
if (!tryMove(j)) {
if(!tryEmpty(j)) tryFreeCells(j);} // try either moving a cascade or a car to a freecell
tryAce();
}
function tryEmpty(j) { // attempt to move cascade to an open column
nmove=0; i=1;
while(!nmove && i<8) {
k=(j+i) % 8;
if(cascadeEmpty(k)) {
nmove++;
removeStack(j,first); // unlink these cards into the tomove array
appendStack(k,first);
}
i++;
}
return nmove;
}
function removeStack(j,m) {
tomove.length=0; // clear it off
cascade=document.getElementById("c"+j);
for(n=m;n<=last;n++) {
l=nodes[n].id;
tomove.push(l.substring(1)); // cardNo
}
for(n=m;n<=last;n++) cascade.removeChild(cascade.lastElementChild);
}
function appendStack(k,m) {
for(n=m;n<=last;n++) appendCard(tomove[n-m],k);
}
function tryMove(j) { // attempt to move a cascade to another
tomove = []; // array to hold cards that will move
computeFree();
if(nmax<(last-first+1)) first=last-nmax+1; // limit range
nmove=0; m=first; // we'll march down the cascade until something moves
cascade=document.getElementById("c"+j);
while(!nmove && m<=last) { // loop from the first of the stackables to whatever will move
srcId=nodes[m].id; val=getVal(srcId); color=getColor(srcId);
i=1; // cascades beyond k
while(i<8 && !nmove) {
k=(j+i) % 8;
destId=topCardId(k); val2=getVal(destId); color2=getColor(destId);
if((color!==color2 && val+1==val2)) {
nmove++;
moves.push(['c',j,'c',k,last-m+1]); // this defines a move from one cascade to another
removeStack(j,m);
appendStack(k,m);
}
i++;
}
m++;
}
return nmove;
}
function undo(){ // at the moment, this just works for cascade to cascade
if(moves.length) {
cardid=-1;
move=moves.pop();
cj=move[0]; j=move[1]; ck=move[2]; k=move[3]; n=move[4];
if(cj=='c' && ck=='c') {
tomove.length=0; // clear this array - a bit like remove stack
nodes=document.getElementById('c'+k).childNodes;
last=nodes.length-1; m=last-n+1;
removeStack(k,m);
appendStack(j,m);
} else if(ck=='f') {
cardid=freecells[k];
document.getElementById("s"+k).innerHTML="";
freecells[k]=-1;
} else if(ck=='a') {
cardid=aces[k]+13*k;
aces[k]--;
if(aces[k]==-1) {card="";} else {card=cards[cardid-1];}
document.getElementById("a"+k).innerHTML=card;
}
if(cardid>-1 && cj=='c') {
appendCard(cardid,j);
}
}
}
function computeFree() { // What is the biggest move we can make
nopen=0;
for(k=0;k<4;k++) if(freecells[k]==-1) nopen++;
nempty=0;
for(j=0;j<8;j++) if(cascadeEmpty(j)) nempty++;
nmax=1+(nopen+nempty);
}
function stackable(j) { // return the global values of first and last
nodes=document.getElementById("c"+j).childNodes;
last=nodes.length-1; // index of top node in node list
if(last<1) {
first=last;
}else{
first=last-1; // index on how many can be stacked
match=1; // test to see whether it can be stacked
while(first>-1 && match) {
id1=nodes[first].id; id2=nodes[first+1].id;
val1=getVal(id1); val2=getVal(id2);
color1=getColor(id1); color2=getColor(id2); // returns 'r' or 'b'
match=(val1==(val2+1) && color1!==color2); // true or false
first--;
// console.log("F "+first+" L "+last+" M "+match)
}
first=(first==-1 && match) ? 0 : first+2;
}
}
function cascadeEmpty(j) {
return (document.getElementById("c"+j).childElementCount==0)
}
function appendCard(cardNo,j) { // add a card to the end of cascade j
const cascade=document.getElementById("c"+j);
z=cascade.childElementCount+1;
var card=document.createElement("div");
card.innerHTML=cards[cardNo];
card.id="v"+cardNo;
card.style.zindex=z.toString();
card.style.position='absolute';
card.style.width='100%';
y=(screen.width < 600 ? (z-1)*4 : (z-1)*3);
card.style.top=y.toString()+"vw";
cascade.appendChild(card);
}
function dropFree(k){ // Drop the card from freecell k to a cascade
var cardNo=freecells[k];
if(cardNo>-1) {
suit=Math.floor(cardNo/13); val=cardNo % 13; color=(suit==0 || suit==3) ? 'b' : 'r';
// run through the top cards to see if it can drop down to them
j=0;nmove=0;
while(j<8 && nmove==0){
destId=topCardId(j); destVal=getVal(destId); destSuit=getSuit(destId);
destColor=(destSuit==0 || destSuit==3) ? 'b' : 'r';
if((val==destVal-1) && (color !== destColor)) {
moves.push(['f',k,'c',j,1]); // this defines a move from freecell to cascade
appendCard(cardNo,j);
freecells[k]=-1;
document.getElementById("s"+k).innerHTML="";
nmove=1;
}
j++;
}
j=0; // if nothing moved to a full cascade, try empty cascades!
while(j<8 && nmove==0) {
if(cascadeEmpty(j)) {
moves.push(['f',k,'c',j,1]); // this defines a move from freecell to cascade
appendCard(cardNo,j);
freecells[k]=-1;
document.getElementById("s"+k).innerHTML="";
nmove=1;
}
j++;
}
}
tryAce(); // after making a move, see if any cards can jump up to foundation
}
// Run through to see if any top cards can jump to the ace pile
function topCardId(j){
cascade=document.getElementById("c"+j);
topCard = cascade.lastChild;
return (topCard) ? topCard.id : ''; // what card is it? v0...
}
// simple functions to convert id to values
const getSuit = s => Math.floor(parseInt(s.substring(1),10)/13);
const getVal = s => parseInt(s.substring(1),10) % 13;
const getColor = s => (getSuit(s)==0 || getSuit(s)==3) ? 'b' : 'r';
// check if anything can jump to the aces piles automatically
function tryAce() { // this will repeat as long as it moves something
var nmove=1; // This gets incremented and returned
var m=setInterval(frame2,100);
function frame2() {
if (nmove==0) {
clearInterval(m);
showFoundations();
} else {
nmove=0;
for(j=0;j<8;j++) { // try pop from the cascades
topID=topCardId(j);
if(topID) { // is there a top card in this cascade?
suit=getSuit(topID);
val=getVal(topID);
if(aces[suit]==(val-1)) {
nmove++;
moves.push(['c',j,'a',suit,1]); // this defines a move from freecell to cascade
aces[suit]++;
cascade=document.getElementById("c"+j);
cascade.removeChild(cascade.lastChild);
}
}
}
for(j=0;j<4;j++) { // try pop from freecells
cardNo=freecells[j];
if(cardNo>-1) {
val=cardNo % 13; suit=Math.floor(cardNo/13);
if(aces[suit]==(val-1)) {
nmove++;
moves.push(['f',j,'a',suit,1]); // this defines a move from freecell to cascade
aces[suit]=val;
freecells[j]=-1;
document.getElementById("s"+j).innerHTML="";
}
}
}
}
} // end frame
} // end try aces
function showFoundations(){
for(i=0;i<4;i++) {
if(aces[i]>-1) {
var card=cards[i*13+aces[i]];
document.getElementById("a"+i).innerHTML=card;
}
}
}
function tryFreeCells(j){
free=-1;
for(k=0;k<4;k++) if(freecells[k]==-1) free=k;
if(free>-1) {
t=topCardId(j);
moves.push(['c',j,'f',free,1]); // this defines a move from cascade to freecell
freecells[free]=parseInt(t.substring(1)); // place the cardno in there for easy move later
popCard(j,t,"s"+free);
return 1;
}else{
return 0;
}
}
// Move a card from one place to another
function popCard(j,srcId,destId){
cascade=document.getElementById("c"+j);
src=document.getElementById(srcId);
dest=document.getElementById(destId);
if(dest) dest.innerHTML=src.innerHTML;
cascade.removeChild(cascade.lastChild);
return 1;
}
</script>
</body>
</html>