Play Online 2048 Game Kaise Create Using Html5

2048  एक लोकप्रिय Puzzle Game है जिसे HTML, CSS और JavaScript का उपयोग करके बनाया जा सकता है। यदि आप Online 2048 गेम Create या बनाना चाहते हैं, तो यह नीचे दिए पैराग्राफ का पूरा फोलो करें। गेम बनाना एक मजेदार प्रोजेक्ट है जो आपकी Programming Skill  को सुधार सकता है। आप इस प्रोजेक्ट को और बेहतर बनाने के लिए इसमें स्कोर ट्रैकर, Animation और Mobile फ्रेंडली डिज़ाइन भी जोड़ सकते हैं।

 

Play Online 2048 गेम क्या है?- Kaise Create Kare

 

2048 एक नंबर-Puzzle Game है जिसमें प्लेयर का लक्ष्य 2 की पॉवर्स वाले ब्लॉक्स को जोड़ते हुए 2048 का ब्लॉक बनाना होता है। इसे खेलने में आसान लेकिन मास्टर करना मुश्किल होता है। Online App Currency 

 Online 2048 Game बनाने के लिए ज़रूरी तकनीकें

  1. HTML: गेम का स्ट्रक्चर बनाने के लिए।
  2. CSS: गेम को स्टाइलिश और आकर्षक बनाने के लिए।
  3. JavaScript: गेम की लॉजिक और इंटरएक्टिव फीचर्स के लिए।

1. HTML फाइल क्रिएट करें

  • एक बेसिक HTML फाइल बनाएं।
  • इसमें गेम बोर्ड (ग्रिड) के लिए एक डिव एलिमेंट शामिल करें।

<!DOCTYPE html>
<html lang=”hi”>
<head>
<meta charset=”UTF-8″>
<meta name=”viewport” content=”width=device-width, initial-scale=1.0″>
<title>2048 गेम</title>
<link rel=”stylesheet” href=”styles.css”>
</head>
<body>
<h1>2048 गेम</h1>
<div class=”game-container”>
<div id=”game-board”></div>
</div>
<script src=”script.js”></script>
</body>
</html>

2. CSS फाइल बनाएं

  • गेम बोर्ड और टाइल्स के लिए स्टाइलिंग।
  • ग्रिड लेआउट का उपयोग करें।

/* styles.css */
body {
font-family: Arial, sans-serif;
display: flex;
flex-direction: column;
align-items: center;
background-color: #f9f9f9;
margin: 0;
padding: 0;
}

h1 {
margin-top: 20px;
}

.game-container {
margin-top: 30px;
}

#game-board {
display: grid;
grid-template-columns: repeat(4, 100px);
grid-template-rows: repeat(4, 100px);
gap: 10px;
background-color: #bbada0;
padding: 10px;
border-radius: 10px;
}

3. JavaScript फाइल में गेम लॉजिक जोड़ें

  • गेम की लॉजिक लिखें जैसे कि टाइल्स मूव करना, मर्ज करना, और स्कोर अपडेट करना।
  • कीबोर्ड इवेंट्स का उपयोग करें।

// script.js
document.addEventListener(‘DOMContentLoaded’, () => {
const gameBoard = document.querySelector(‘#game-board’);
let tiles = [];

// गेम बोर्ड को इनीशियलाइज़ करें
function createBoard() {
for (let i = 0; i < 16; i++) {
const tile = document.createElement(‘div’);
tile.classList.add(’tile’);
gameBoard.appendChild(tile);
tiles.push(tile);
}
generateRandomTile();
generateRandomTile();
}

// रैंडम टाइल जेनरेट करें
function generateRandomTile() {
let randomIndex = Math.floor(Math.random() * tiles.length);
while (tiles[randomIndex].textContent !== ”) {
randomIndex = Math.floor(Math.random() * tiles.length);
}
tiles[randomIndex].textContent = 2;
}

createBoard();
});

 

Download Full Code Play Online 2048 Game

 

<!DOCTYPE html>
<html>

<head>
<meta charset=”utf-8″>
<title>2048</title>

<link href=”style/main.css” rel=”stylesheet” type=”text/css”>
<link rel=”shortcut icon” href=”favicon.ico”>
<link rel=”apple-touch-icon” href=”meta/apple-touch-icon.png”>
<link rel=”apple-touch-startup-image” href=”meta/apple-touch-startup-image-640×1096.png” media=”(device-width: 320px) and (device-height: 568px) and (-webkit-device-pixel-ratio: 2)”> <!– iPhone 5+ –>
<link rel=”apple-touch-startup-image” href=”meta/apple-touch-startup-image-640×920.png” media=”(device-width: 320px) and (device-height: 480px) and (-webkit-device-pixel-ratio: 2)”> <!– iPhone, retina –>
<meta name=”apple-mobile-web-app-capable” content=”yes”>
<meta name=”apple-mobile-web-app-status-bar-style” content=”black”>

<meta name=”HandheldFriendly” content=”True”>
<meta name=”MobileOptimized” content=”320″>
<meta name=”viewport” content=”width=device-width, target-densitydpi=160dpi, initial-scale=1.0, maximum-scale=1, user-scalable=no, minimal-ui”>
</head>
<style>
@import url(fonts/clear-sans.css);
html, body {
margin: 0;
padding: 0;
background: #faf8ef;
color: #776e65;
font-family: “Clear Sans”, “Helvetica Neue”, Arial, sans-serif;
font-size: 18px; }

body {
margin: 80px 0; }

.heading:after {
content: “”;
display: block;
clear: both; }

h1.title {
font-size: 80px;
font-weight: bold;
margin: 0;
display: block;
float: left; }

@-webkit-keyframes move-up {
0% {
top: 25px;
opacity: 1; }

100% {
top: -50px;
opacity: 0; } }
@-moz-keyframes move-up {
0% {
top: 25px;
opacity: 1; }

100% {
top: -50px;
opacity: 0; } }
@keyframes move-up {
0% {
top: 25px;
opacity: 1; }

100% {
top: -50px;
opacity: 0; } }
.scores-container {
float: right;
text-align: right; }

.score-container, .best-container {
position: relative;
display: inline-block;
background: #bbada0;
padding: 15px 25px;
font-size: 25px;
height: 25px;
line-height: 47px;
font-weight: bold;
border-radius: 3px;
color: white;
margin-top: 8px;
text-align: center; }
.score-container:after, .best-container:after {
position: absolute;
width: 100%;
top: 10px;
left: 0;
text-transform: uppercase;
font-size: 13px;
line-height: 13px;
text-align: center;
color: #eee4da; }
.score-container .score-addition, .best-container .score-addition {
position: absolute;
right: 30px;
color: red;
font-size: 25px;
line-height: 25px;
font-weight: bold;
color: rgba(119, 110, 101, 0.9);
z-index: 100;
-webkit-animation: move-up 600ms ease-in;
-moz-animation: move-up 600ms ease-in;
animation: move-up 600ms ease-in;
-webkit-animation-fill-mode: both;
-moz-animation-fill-mode: both;
animation-fill-mode: both; }

.score-container:after {
content: “Score”; }

.best-container:after {
content: “Best”; }

p {
margin-top: 0;
margin-bottom: 10px;
line-height: 1.65; }

a {
color: #776e65;
font-weight: bold;
text-decoration: underline;
cursor: pointer; }

strong.important {
text-transform: uppercase; }

hr {
border: none;
border-bottom: 1px solid #d8d4d0;
margin-top: 20px;
margin-bottom: 30px; }

.container {
width: 500px;
margin: 0 auto; }

@-webkit-keyframes fade-in {
0% {
opacity: 0; }

100% {
opacity: 1; } }
@-moz-keyframes fade-in {
0% {
opacity: 0; }

100% {
opacity: 1; } }
@keyframes fade-in {
0% {
opacity: 0; }

100% {
opacity: 1; } }
.game-container {
margin-top: 40px;
position: relative;
padding: 15px;
cursor: default;
-webkit-touch-callout: none;
-ms-touch-callout: none;
-webkit-user-select: none;
-moz-user-select: none;
-ms-user-select: none;
-ms-touch-action: none;
touch-action: none;
background: #bbada0;
border-radius: 6px;
width: 500px;
height: 500px;
-webkit-box-sizing: border-box;
-moz-box-sizing: border-box;
box-sizing: border-box; }
.game-container .game-message {
display: none;
position: absolute;
top: 0;
right: 0;
bottom: 0;
left: 0;
background: rgba(238, 228, 218, 0.5);
z-index: 100;
text-align: center;
-webkit-animation: fade-in 800ms ease 1200ms;
-moz-animation: fade-in 800ms ease 1200ms;
animation: fade-in 800ms ease 1200ms;
-webkit-animation-fill-mode: both;
-moz-animation-fill-mode: both;
animation-fill-mode: both; }
.game-container .game-message p {
font-size: 60px;
font-weight: bold;
height: 60px;
line-height: 60px;
margin-top: 222px; }
.game-container .game-message .lower {
display: block;
margin-top: 59px; }
.game-container .game-message a {
display: inline-block;
background: #8f7a66;
border-radius: 3px;
padding: 0 20px;
text-decoration: none;
color: #f9f6f2;
height: 40px;
line-height: 42px;
margin-left: 9px; }
.game-container .game-message a.keep-playing-button {
display: none; }
.game-container .game-message.game-won {
background: rgba(237, 194, 46, 0.5);
color: #f9f6f2; }
.game-container .game-message.game-won a.keep-playing-button {
display: inline-block; }
.game-container .game-message.game-won, .game-container .game-message.game-over {
display: block; }

.grid-container {
position: absolute;
z-index: 1; }

.grid-row {
margin-bottom: 15px; }
.grid-row:last-child {
margin-bottom: 0; }
.grid-row:after {
content: “”;
display: block;
clear: both; }

.grid-cell {
width: 106.25px;
height: 106.25px;
margin-right: 15px;
float: left;
border-radius: 3px;
background: rgba(238, 228, 218, 0.35); }
.grid-cell:last-child {
margin-right: 0; }

.tile-container {
position: absolute;
z-index: 2; }

.tile, .tile .tile-inner {
width: 107px;
height: 107px;
line-height: 107px; }
.tile.tile-position-1-1 {
-webkit-transform: translate(0px, 0px);
-moz-transform: translate(0px, 0px);
-ms-transform: translate(0px, 0px);
transform: translate(0px, 0px); }
.tile.tile-position-1-2 {
-webkit-transform: translate(0px, 121px);
-moz-transform: translate(0px, 121px);
-ms-transform: translate(0px, 121px);
transform: translate(0px, 121px); }
.tile.tile-position-1-3 {
-webkit-transform: translate(0px, 242px);
-moz-transform: translate(0px, 242px);
-ms-transform: translate(0px, 242px);
transform: translate(0px, 242px); }
.tile.tile-position-1-4 {
-webkit-transform: translate(0px, 363px);
-moz-transform: translate(0px, 363px);
-ms-transform: translate(0px, 363px);
transform: translate(0px, 363px); }
.tile.tile-position-2-1 {
-webkit-transform: translate(121px, 0px);
-moz-transform: translate(121px, 0px);
-ms-transform: translate(121px, 0px);
transform: translate(121px, 0px); }
.tile.tile-position-2-2 {
-webkit-transform: translate(121px, 121px);
-moz-transform: translate(121px, 121px);
-ms-transform: translate(121px, 121px);
transform: translate(121px, 121px); }
.tile.tile-position-2-3 {
-webkit-transform: translate(121px, 242px);
-moz-transform: translate(121px, 242px);
-ms-transform: translate(121px, 242px);
transform: translate(121px, 242px); }
.tile.tile-position-2-4 {
-webkit-transform: translate(121px, 363px);
-moz-transform: translate(121px, 363px);
-ms-transform: translate(121px, 363px);
transform: translate(121px, 363px); }
.tile.tile-position-3-1 {
-webkit-transform: translate(242px, 0px);
-moz-transform: translate(242px, 0px);
-ms-transform: translate(242px, 0px);
transform: translate(242px, 0px); }
.tile.tile-position-3-2 {
-webkit-transform: translate(242px, 121px);
-moz-transform: translate(242px, 121px);
-ms-transform: translate(242px, 121px);
transform: translate(242px, 121px); }
.tile.tile-position-3-3 {
-webkit-transform: translate(242px, 242px);
-moz-transform: translate(242px, 242px);
-ms-transform: translate(242px, 242px);
transform: translate(242px, 242px); }
.tile.tile-position-3-4 {
-webkit-transform: translate(242px, 363px);
-moz-transform: translate(242px, 363px);
-ms-transform: translate(242px, 363px);
transform: translate(242px, 363px); }
.tile.tile-position-4-1 {
-webkit-transform: translate(363px, 0px);
-moz-transform: translate(363px, 0px);
-ms-transform: translate(363px, 0px);
transform: translate(363px, 0px); }
.tile.tile-position-4-2 {
-webkit-transform: translate(363px, 121px);
-moz-transform: translate(363px, 121px);
-ms-transform: translate(363px, 121px);
transform: translate(363px, 121px); }
.tile.tile-position-4-3 {
-webkit-transform: translate(363px, 242px);
-moz-transform: translate(363px, 242px);
-ms-transform: translate(363px, 242px);
transform: translate(363px, 242px); }
.tile.tile-position-4-4 {
-webkit-transform: translate(363px, 363px);
-moz-transform: translate(363px, 363px);
-ms-transform: translate(363px, 363px);
transform: translate(363px, 363px); }

.tile {
position: absolute;
-webkit-transition: 100ms ease-in-out;
-moz-transition: 100ms ease-in-out;
transition: 100ms ease-in-out;
-webkit-transition-property: -webkit-transform;
-moz-transition-property: -moz-transform;
transition-property: transform; }
.tile .tile-inner {
border-radius: 3px;
background: #eee4da;
text-align: center;
font-weight: bold;
z-index: 10;
font-size: 55px; }
.tile.tile-2 .tile-inner {
background: #eee4da;
box-shadow: 0 0 30px 10px rgba(243, 215, 116, 0), inset 0 0 0 1px rgba(255, 255, 255, 0); }
.tile.tile-4 .tile-inner {
background: #ede0c8;
box-shadow: 0 0 30px 10px rgba(243, 215, 116, 0), inset 0 0 0 1px rgba(255, 255, 255, 0); }
.tile.tile-8 .tile-inner {
color: #f9f6f2;
background: #f2b179; }
.tile.tile-16 .tile-inner {
color: #f9f6f2;
background: #f59563; }
.tile.tile-32 .tile-inner {
color: #f9f6f2;
background: #f67c5f; }
.tile.tile-64 .tile-inner {
color: #f9f6f2;
background: #f65e3b; }
.tile.tile-128 .tile-inner {
color: #f9f6f2;
background: #edcf72;
box-shadow: 0 0 30px 10px rgba(243, 215, 116, 0.2381), inset 0 0 0 1px rgba(255, 255, 255, 0.14286);
font-size: 45px; }
@media screen and (max-width: 520px) {
.tile.tile-128 .tile-inner {
font-size: 25px; } }
.tile.tile-256 .tile-inner {
color: #f9f6f2;
background: #edcc61;
box-shadow: 0 0 30px 10px rgba(243, 215, 116, 0.31746), inset 0 0 0 1px rgba(255, 255, 255, 0.19048);
font-size: 45px; }
@media screen and (max-width: 520px) {
.tile.tile-256 .tile-inner {
font-size: 25px; } }
.tile.tile-512 .tile-inner {
color: #f9f6f2;
background: #edc850;
box-shadow: 0 0 30px 10px rgba(243, 215, 116, 0.39683), inset 0 0 0 1px rgba(255, 255, 255, 0.2381);
font-size: 45px; }
@media screen and (max-width: 520px) {
.tile.tile-512 .tile-inner {
font-size: 25px; } }
.tile.tile-1024 .tile-inner {
color: #f9f6f2;
background: #edc53f;
box-shadow: 0 0 30px 10px rgba(243, 215, 116, 0.47619), inset 0 0 0 1px rgba(255, 255, 255, 0.28571);
font-size: 35px; }
@media screen and (max-width: 520px) {
.tile.tile-1024 .tile-inner {
font-size: 15px; } }
.tile.tile-2048 .tile-inner {
color: #f9f6f2;
background: #edc22e;
box-shadow: 0 0 30px 10px rgba(243, 215, 116, 0.55556), inset 0 0 0 1px rgba(255, 255, 255, 0.33333);
font-size: 35px; }
@media screen and (max-width: 520px) {
.tile.tile-2048 .tile-inner {
font-size: 15px; } }
.tile.tile-super .tile-inner {
color: #f9f6f2;
background: #3c3a32;
font-size: 30px; }
@media screen and (max-width: 520px) {
.tile.tile-super .tile-inner {
font-size: 10px; } }

@-webkit-keyframes appear {
0% {
opacity: 0;
-webkit-transform: scale(0);
-moz-transform: scale(0);
-ms-transform: scale(0);
transform: scale(0); }

100% {
opacity: 1;
-webkit-transform: scale(1);
-moz-transform: scale(1);
-ms-transform: scale(1);
transform: scale(1); } }
@-moz-keyframes appear {
0% {
opacity: 0;
-webkit-transform: scale(0);
-moz-transform: scale(0);
-ms-transform: scale(0);
transform: scale(0); }

100% {
opacity: 1;
-webkit-transform: scale(1);
-moz-transform: scale(1);
-ms-transform: scale(1);
transform: scale(1); } }
@keyframes appear {
0% {
opacity: 0;
-webkit-transform: scale(0);
-moz-transform: scale(0);
-ms-transform: scale(0);
transform: scale(0); }

100% {
opacity: 1;
-webkit-transform: scale(1);
-moz-transform: scale(1);
-ms-transform: scale(1);
transform: scale(1); } }
.tile-new .tile-inner {
-webkit-animation: appear 200ms ease 100ms;
-moz-animation: appear 200ms ease 100ms;
animation: appear 200ms ease 100ms;
-webkit-animation-fill-mode: backwards;
-moz-animation-fill-mode: backwards;
animation-fill-mode: backwards; }

@-webkit-keyframes pop {
0% {
-webkit-transform: scale(0);
-moz-transform: scale(0);
-ms-transform: scale(0);
transform: scale(0); }

50% {
-webkit-transform: scale(1.2);
-moz-transform: scale(1.2);
-ms-transform: scale(1.2);
transform: scale(1.2); }

100% {
-webkit-transform: scale(1);
-moz-transform: scale(1);
-ms-transform: scale(1);
transform: scale(1); } }
@-moz-keyframes pop {
0% {
-webkit-transform: scale(0);
-moz-transform: scale(0);
-ms-transform: scale(0);
transform: scale(0); }

50% {
-webkit-transform: scale(1.2);
-moz-transform: scale(1.2);
-ms-transform: scale(1.2);
transform: scale(1.2); }

100% {
-webkit-transform: scale(1);
-moz-transform: scale(1);
-ms-transform: scale(1);
transform: scale(1); } }
@keyframes pop {
0% {
-webkit-transform: scale(0);
-moz-transform: scale(0);
-ms-transform: scale(0);
transform: scale(0); }

50% {
-webkit-transform: scale(1.2);
-moz-transform: scale(1.2);
-ms-transform: scale(1.2);
transform: scale(1.2); }

100% {
-webkit-transform: scale(1);
-moz-transform: scale(1);
-ms-transform: scale(1);
transform: scale(1); } }
.tile-merged .tile-inner {
z-index: 20;
-webkit-animation: pop 200ms ease 100ms;
-moz-animation: pop 200ms ease 100ms;
animation: pop 200ms ease 100ms;
-webkit-animation-fill-mode: backwards;
-moz-animation-fill-mode: backwards;
animation-fill-mode: backwards; }

.above-game:after {
content: “”;
display: block;
clear: both; }

.game-intro {
float: left;
line-height: 42px;
margin-bottom: 0; }

.restart-button {
display: inline-block;
background: #8f7a66;
border-radius: 3px;
padding: 0 20px;
text-decoration: none;
color: #f9f6f2;
height: 40px;
line-height: 42px;
display: block;
text-align: center;
float: right; }

.game-explanation {
margin-top: 50px; }

@media screen and (max-width: 520px) {
html, body {
font-size: 15px; }

body {
margin: 20px 0;
padding: 0 20px; }

h1.title {
font-size: 27px;
margin-top: 15px; }

.container {
width: 280px;
margin: 0 auto; }

.score-container, .best-container {
margin-top: 0;
padding: 15px 10px;
min-width: 40px; }

.heading {
margin-bottom: 10px; }

.game-intro {
width: 55%;
display: block;
box-sizing: border-box;
line-height: 1.65; }

.restart-button {
width: 42%;
padding: 0;
display: block;
box-sizing: border-box;
margin-top: 2px; }

.game-container {
margin-top: 17px;
position: relative;
padding: 10px;
cursor: default;
-webkit-touch-callout: none;
-ms-touch-callout: none;
-webkit-user-select: none;
-moz-user-select: none;
-ms-user-select: none;
-ms-touch-action: none;
touch-action: none;
background: #bbada0;
border-radius: 6px;
width: 280px;
height: 280px;
-webkit-box-sizing: border-box;
-moz-box-sizing: border-box;
box-sizing: border-box; }
.game-container .game-message {
display: none;
position: absolute;
top: 0;
right: 0;
bottom: 0;
left: 0;
background: rgba(238, 228, 218, 0.5);
z-index: 100;
text-align: center;
-webkit-animation: fade-in 800ms ease 1200ms;
-moz-animation: fade-in 800ms ease 1200ms;
animation: fade-in 800ms ease 1200ms;
-webkit-animation-fill-mode: both;
-moz-animation-fill-mode: both;
animation-fill-mode: both; }
.game-container .game-message p {
font-size: 60px;
font-weight: bold;
height: 60px;
line-height: 60px;
margin-top: 222px; }
.game-container .game-message .lower {
display: block;
margin-top: 59px; }
.game-container .game-message a {
display: inline-block;
background: #8f7a66;
border-radius: 3px;
padding: 0 20px;
text-decoration: none;
color: #f9f6f2;
height: 40px;
line-height: 42px;
margin-left: 9px; }
.game-container .game-message a.keep-playing-button {
display: none; }
.game-container .game-message.game-won {
background: rgba(237, 194, 46, 0.5);
color: #f9f6f2; }
.game-container .game-message.game-won a.keep-playing-button {
display: inline-block; }
.game-container .game-message.game-won, .game-container .game-message.game-over {
display: block; }

.grid-container {
position: absolute;
z-index: 1; }

.grid-row {
margin-bottom: 10px; }
.grid-row:last-child {
margin-bottom: 0; }
.grid-row:after {
content: “”;
display: block;
clear: both; }

.grid-cell {
width: 57.5px;
height: 57.5px;
margin-right: 10px;
float: left;
border-radius: 3px;
background: rgba(238, 228, 218, 0.35); }
.grid-cell:last-child {
margin-right: 0; }

.tile-container {
position: absolute;
z-index: 2; }

.tile, .tile .tile-inner {
width: 58px;
height: 58px;
line-height: 58px; }
.tile.tile-position-1-1 {
-webkit-transform: translate(0px, 0px);
-moz-transform: translate(0px, 0px);
-ms-transform: translate(0px, 0px);
transform: translate(0px, 0px); }
.tile.tile-position-1-2 {
-webkit-transform: translate(0px, 67px);
-moz-transform: translate(0px, 67px);
-ms-transform: translate(0px, 67px);
transform: translate(0px, 67px); }
.tile.tile-position-1-3 {
-webkit-transform: translate(0px, 135px);
-moz-transform: translate(0px, 135px);
-ms-transform: translate(0px, 135px);
transform: translate(0px, 135px); }
.tile.tile-position-1-4 {
-webkit-transform: translate(0px, 202px);
-moz-transform: translate(0px, 202px);
-ms-transform: translate(0px, 202px);
transform: translate(0px, 202px); }
.tile.tile-position-2-1 {
-webkit-transform: translate(67px, 0px);
-moz-transform: translate(67px, 0px);
-ms-transform: translate(67px, 0px);
transform: translate(67px, 0px); }
.tile.tile-position-2-2 {
-webkit-transform: translate(67px, 67px);
-moz-transform: translate(67px, 67px);
-ms-transform: translate(67px, 67px);
transform: translate(67px, 67px); }
.tile.tile-position-2-3 {
-webkit-transform: translate(67px, 135px);
-moz-transform: translate(67px, 135px);
-ms-transform: translate(67px, 135px);
transform: translate(67px, 135px); }
.tile.tile-position-2-4 {
-webkit-transform: translate(67px, 202px);
-moz-transform: translate(67px, 202px);
-ms-transform: translate(67px, 202px);
transform: translate(67px, 202px); }
.tile.tile-position-3-1 {
-webkit-transform: translate(135px, 0px);
-moz-transform: translate(135px, 0px);
-ms-transform: translate(135px, 0px);
transform: translate(135px, 0px); }
.tile.tile-position-3-2 {
-webkit-transform: translate(135px, 67px);
-moz-transform: translate(135px, 67px);
-ms-transform: translate(135px, 67px);
transform: translate(135px, 67px); }
.tile.tile-position-3-3 {
-webkit-transform: translate(135px, 135px);
-moz-transform: translate(135px, 135px);
-ms-transform: translate(135px, 135px);
transform: translate(135px, 135px); }
.tile.tile-position-3-4 {
-webkit-transform: translate(135px, 202px);
-moz-transform: translate(135px, 202px);
-ms-transform: translate(135px, 202px);
transform: translate(135px, 202px); }
.tile.tile-position-4-1 {
-webkit-transform: translate(202px, 0px);
-moz-transform: translate(202px, 0px);
-ms-transform: translate(202px, 0px);
transform: translate(202px, 0px); }
.tile.tile-position-4-2 {
-webkit-transform: translate(202px, 67px);
-moz-transform: translate(202px, 67px);
-ms-transform: translate(202px, 67px);
transform: translate(202px, 67px); }
.tile.tile-position-4-3 {
-webkit-transform: translate(202px, 135px);
-moz-transform: translate(202px, 135px);
-ms-transform: translate(202px, 135px);
transform: translate(202px, 135px); }
.tile.tile-position-4-4 {
-webkit-transform: translate(202px, 202px);
-moz-transform: translate(202px, 202px);
-ms-transform: translate(202px, 202px);
transform: translate(202px, 202px); }

.tile .tile-inner {
font-size: 35px; }

.game-message p {
font-size: 30px !important;
height: 30px !important;
line-height: 30px !important;
margin-top: 90px !important; }
.game-message .lower {
margin-top: 30px !important; } }

</style>

<body>
<div class=”container”>
<div class=”heading”>
<h1 class=”title”>2048</h1>
<div class=”scores-container”>
<div class=”score-container”>0</div>
<div class=”best-container”>0</div>
</div>
</div>

<div class=”above-game”>
<p class=”game-intro”>Join the numbers and get to the <strong>2048 tile!</strong></p>
<a class=”restart-button”>New Game</a>
</div>

<div class=”game-container”>
<div class=”game-message”>
<p></p>
<div class=”lower”>
<a class=”keep-playing-button”>Keep going</a>
<a class=”retry-button”>Try again</a>
</div>
</div>

<div class=”grid-container”>
<div class=”grid-row”>
<div class=”grid-cell”></div>
<div class=”grid-cell”></div>
<div class=”grid-cell”></div>
<div class=”grid-cell”></div>
</div>
<div class=”grid-row”>
<div class=”grid-cell”></div>
<div class=”grid-cell”></div>
<div class=”grid-cell”></div>
<div class=”grid-cell”></div>
</div>
<div class=”grid-row”>
<div class=”grid-cell”></div>
<div class=”grid-cell”></div>
<div class=”grid-cell”></div>
<div class=”grid-cell”></div>
</div>
<div class=”grid-row”>
<div class=”grid-cell”></div>
<div class=”grid-cell”></div>
<div class=”grid-cell”></div>
<div class=”grid-cell”></div>
</div>
</div>

<div class=”tile-container”>

</div>
</div>

<p class=”game-explanation”>
<strong class=”important”>How to play:</strong> Use your <strong>arrow keys</strong> to move the tiles. When two tiles with the same number touch, they <strong>merge into one!</strong>
</p>
</div>

<script src=”js/bind_polyfill.js”></script>
<script src=”js/classlist_polyfill.js”></script>
<script src=”js/animframe_polyfill.js”></script>
<script src=”js/keyboard_input_manager.js”></script>
<script src=”js/html_actuator.js”></script>
<script src=”js/grid.js”></script>
<script src=”js/tile.js”></script>
<script src=”js/local_storage_manager.js”></script>
<script src=”js/game_manager.js”></script>
<script src=”js/application.js”></script>

<script>

(function () {
var lastTime = 0;
var vendors = [‘webkit’, ‘moz’];
for (var x = 0; x < vendors.length && !window.requestAnimationFrame; ++x) {
window.requestAnimationFrame = window[vendors[x] + ‘RequestAnimationFrame’];
window.cancelAnimationFrame = window[vendors[x] + ‘CancelAnimationFrame’] ||
window[vendors[x] + ‘CancelRequestAnimationFrame’];
}

if (!window.requestAnimationFrame) {
window.requestAnimationFrame = function (callback) {
var currTime = new Date().getTime();
var timeToCall = Math.max(0, 16 – (currTime – lastTime));
var id = window.setTimeout(function () {
callback(currTime + timeToCall);
},
timeToCall);
lastTime = currTime + timeToCall;
return id;
};
}

if (!window.cancelAnimationFrame) {
window.cancelAnimationFrame = function (id) {
clearTimeout(id);
};
}
}());
// Wait till the browser is ready to render the game (avoids glitches)
window.requestAnimationFrame(function () {
new GameManager(4, KeyboardInputManager, HTMLActuator, LocalStorageManager);
});
Function.prototype.bind = Function.prototype.bind || function (target) {
var self = this;
return function (args) {
if (!(args instanceof Array)) {
args = [args];
}
self.apply(target, args);
};
};
(function () {
if (typeof window.Element === “undefined” ||
“classList” in document.documentElement) {
return;
}

var prototype = Array.prototype,
push = prototype.push,
splice = prototype.splice,
join = prototype.join;

function DOMTokenList(el) {
this.el = el;
// The className needs to be trimmed and split on whitespace
// to retrieve a list of classes.
var classes = el.className.replace(/^\s+|\s+$/g, ”).split(/\s+/);
for (var i = 0; i < classes.length; i++) {
push.call(this, classes[i]);
}
}

DOMTokenList.prototype = {
add: function (token) {
if (this.contains(token)) return;
push.call(this, token);
this.el.className = this.toString();
},
contains: function (token) {
return this.el.className.indexOf(token) != -1;
},
item: function (index) {
return this[index] || null;
},
remove: function (token) {
if (!this.contains(token)) return;
for (var i = 0; i < this.length; i++) {
if (this[i] == token) break;
}
splice.call(this, i, 1);
this.el.className = this.toString();
},
toString: function () {
return join.call(this, ‘ ‘);
},
toggle: function (token) {
if (!this.contains(token)) {
this.add(token);
} else {
this.remove(token);
}

return this.contains(token);
}
};

window.DOMTokenList = DOMTokenList;

function defineElementGetter(obj, prop, getter) {
if (Object.defineProperty) {
Object.defineProperty(obj, prop, {
get: getter
});
} else {
obj.__defineGetter__(prop, getter);
}
}

defineElementGetter(HTMLElement.prototype, ‘classList’, function () {
return new DOMTokenList(this);
});
})();
function GameManager(size, InputManager, Actuator, StorageManager) {
this.size = size; // Size of the grid
this.inputManager = new InputManager;
this.storageManager = new StorageManager;
this.actuator = new Actuator;

this.startTiles = 2;

this.inputManager.on(“move”, this.move.bind(this));
this.inputManager.on(“restart”, this.restart.bind(this));
this.inputManager.on(“keepPlaying”, this.keepPlaying.bind(this));

this.setup();
}

// Restart the game
GameManager.prototype.restart = function () {
this.storageManager.clearGameState();
this.actuator.continueGame(); // Clear the game won/lost message
this.setup();
};

// Keep playing after winning (allows going over 2048)
GameManager.prototype.keepPlaying = function () {
this.keepPlaying = true;
this.actuator.continueGame(); // Clear the game won/lost message
};

// Return true if the game is lost, or has won and the user hasn’t kept playing
GameManager.prototype.isGameTerminated = function () {
return this.over || (this.won && !this.keepPlaying);
};

// Set up the game
GameManager.prototype.setup = function () {
var previousState = this.storageManager.getGameState();

// Reload the game from a previous game if present
if (previousState) {
this.grid = new Grid(previousState.grid.size,
previousState.grid.cells); // Reload grid
this.score = previousState.score;
this.over = previousState.over;
this.won = previousState.won;
this.keepPlaying = previousState.keepPlaying;
} else {
this.grid = new Grid(this.size);
this.score = 0;
this.over = false;
this.won = false;
this.keepPlaying = false;

// Add the initial tiles
this.addStartTiles();
}

// Update the actuator
this.actuate();
};

// Set up the initial tiles to start the game with
GameManager.prototype.addStartTiles = function () {
for (var i = 0; i < this.startTiles; i++) {
this.addRandomTile();
}
};

// Adds a tile in a random position
GameManager.prototype.addRandomTile = function () {
if (this.grid.cellsAvailable()) {
var value = Math.random() < 0.9 ? 2 : 4;
var tile = new Tile(this.grid.randomAvailableCell(), value);

this.grid.insertTile(tile);
}
};

// Sends the updated grid to the actuator
GameManager.prototype.actuate = function () {
if (this.storageManager.getBestScore() < this.score) {
this.storageManager.setBestScore(this.score);
}

// Clear the state when the game is over (game over only, not win)
if (this.over) {
this.storageManager.clearGameState();
} else {
this.storageManager.setGameState(this.serialize());
}

this.actuator.actuate(this.grid, {
score: this.score,
over: this.over,
won: this.won,
bestScore: this.storageManager.getBestScore(),
terminated: this.isGameTerminated()
});

};

// Represent the current game as an object
GameManager.prototype.serialize = function () {
return {
grid: this.grid.serialize(),
score: this.score,
over: this.over,
won: this.won,
keepPlaying: this.keepPlaying
};
};

// Save all tile positions and remove merger info
GameManager.prototype.prepareTiles = function () {
this.grid.eachCell(function (x, y, tile) {
if (tile) {
tile.mergedFrom = null;
tile.savePosition();
}
});
};

// Move a tile and its representation
GameManager.prototype.moveTile = function (tile, cell) {
this.grid.cells[tile.x][tile.y] = null;
this.grid.cells[cell.x][cell.y] = tile;
tile.updatePosition(cell);
};

// Move tiles on the grid in the specified direction
GameManager.prototype.move = function (direction) {
// 0: up, 1: right, 2: down, 3: left
var self = this;

if (this.isGameTerminated()) return; // Don’t do anything if the game’s over

var cell, tile;

var vector = this.getVector(direction);
var traversals = this.buildTraversals(vector);
var moved = false;

// Save the current tile positions and remove merger information
this.prepareTiles();

// Traverse the grid in the right direction and move tiles
traversals.x.forEach(function (x) {
traversals.y.forEach(function (y) {
cell = { x: x, y: y };
tile = self.grid.cellContent(cell);

if (tile) {
var positions = self.findFarthestPosition(cell, vector);
var next = self.grid.cellContent(positions.next);

// Only one merger per row traversal?
if (next && next.value === tile.value && !next.mergedFrom) {
var merged = new Tile(positions.next, tile.value * 2);
merged.mergedFrom = [tile, next];

self.grid.insertTile(merged);
self.grid.removeTile(tile);

// Converge the two tiles’ positions
tile.updatePosition(positions.next);

// Update the score
self.score += merged.value;

// The mighty 2048 tile
if (merged.value === 2048) self.won = true;
} else {
self.moveTile(tile, positions.farthest);
}

if (!self.positionsEqual(cell, tile)) {
moved = true; // The tile moved from its original cell!
}
}
});
});

if (moved) {
this.addRandomTile();

if (!this.movesAvailable()) {
this.over = true; // Game over!
}

this.actuate();
}
};

// Get the vector representing the chosen direction
GameManager.prototype.getVector = function (direction) {
// Vectors representing tile movement
var map = {
0: { x: 0, y: -1 }, // Up
1: { x: 1, y: 0 }, // Right
2: { x: 0, y: 1 }, // Down
3: { x: -1, y: 0 } // Left
};

return map[direction];
};

// Build a list of positions to traverse in the right order
GameManager.prototype.buildTraversals = function (vector) {
var traversals = { x: [], y: [] };

for (var pos = 0; pos < this.size; pos++) {
traversals.x.push(pos);
traversals.y.push(pos);
}

// Always traverse from the farthest cell in the chosen direction
if (vector.x === 1) traversals.x = traversals.x.reverse();
if (vector.y === 1) traversals.y = traversals.y.reverse();

return traversals;
};

GameManager.prototype.findFarthestPosition = function (cell, vector) {
var previous;

// Progress towards the vector direction until an obstacle is found
do {
previous = cell;
cell = { x: previous.x + vector.x, y: previous.y + vector.y };
} while (this.grid.withinBounds(cell) &&
this.grid.cellAvailable(cell));

return {
farthest: previous,
next: cell // Used to check if a merge is required
};
};

GameManager.prototype.movesAvailable = function () {
return this.grid.cellsAvailable() || this.tileMatchesAvailable();
};

// Check for available matches between tiles (more expensive check)
GameManager.prototype.tileMatchesAvailable = function () {
var self = this;

var tile;

for (var x = 0; x < this.size; x++) {
for (var y = 0; y < this.size; y++) {
tile = this.grid.cellContent({ x: x, y: y });

if (tile) {
for (var direction = 0; direction < 4; direction++) {
var vector = self.getVector(direction);
var cell = { x: x + vector.x, y: y + vector.y };

var other = self.grid.cellContent(cell);

if (other && other.value === tile.value) {
return true; // These two tiles can be merged
}
}
}
}
}

return false;
};

GameManager.prototype.positionsEqual = function (first, second) {
return first.x === second.x && first.y === second.y;
};
function Grid(size, previousState) {
this.size = size;
this.cells = previousState ? this.fromState(previousState) : this.empty();
}

// Build a grid of the specified size
Grid.prototype.empty = function () {
var cells = [];

for (var x = 0; x < this.size; x++) {
var row = cells[x] = [];

for (var y = 0; y < this.size; y++) {
row.push(null);
}
}

return cells;
};

Grid.prototype.fromState = function (state) {
var cells = [];

for (var x = 0; x < this.size; x++) {
var row = cells[x] = [];

for (var y = 0; y < this.size; y++) {
var tile = state[x][y];
row.push(tile ? new Tile(tile.position, tile.value) : null);
}
}

return cells;
};

// Find the first available random position
Grid.prototype.randomAvailableCell = function () {
var cells = this.availableCells();

if (cells.length) {
return cells[Math.floor(Math.random() * cells.length)];
}
};

Grid.prototype.availableCells = function () {
var cells = [];

this.eachCell(function (x, y, tile) {
if (!tile) {
cells.push({ x: x, y: y });
}
});

return cells;
};

// Call callback for every cell
Grid.prototype.eachCell = function (callback) {
for (var x = 0; x < this.size; x++) {
for (var y = 0; y < this.size; y++) {
callback(x, y, this.cells[x][y]);
}
}
};

// Check if there are any cells available
Grid.prototype.cellsAvailable = function () {
return !!this.availableCells().length;
};

// Check if the specified cell is taken
Grid.prototype.cellAvailable = function (cell) {
return !this.cellOccupied(cell);
};

Grid.prototype.cellOccupied = function (cell) {
return !!this.cellContent(cell);
};

Grid.prototype.cellContent = function (cell) {
if (this.withinBounds(cell)) {
return this.cells[cell.x][cell.y];
} else {
return null;
}
};

// Inserts a tile at its position
Grid.prototype.insertTile = function (tile) {
this.cells[tile.x][tile.y] = tile;
};

Grid.prototype.removeTile = function (tile) {
this.cells[tile.x][tile.y] = null;
};

Grid.prototype.withinBounds = function (position) {
return position.x >= 0 && position.x < this.size &&
position.y >= 0 && position.y < this.size;
};

Grid.prototype.serialize = function () {
var cellState = [];

for (var x = 0; x < this.size; x++) {
var row = cellState[x] = [];

for (var y = 0; y < this.size; y++) {
row.push(this.cells[x][y] ? this.cells[x][y].serialize() : null);
}
}

return {
size: this.size,
cells: cellState
};
};
function HTMLActuator() {
this.tileContainer = document.querySelector(“.tile-container”);
this.scoreContainer = document.querySelector(“.score-container”);
this.bestContainer = document.querySelector(“.best-container”);
this.messageContainer = document.querySelector(“.game-message”);

this.score = 0;
}

HTMLActuator.prototype.actuate = function (grid, metadata) {
var self = this;

window.requestAnimationFrame(function () {
self.clearContainer(self.tileContainer);

grid.cells.forEach(function (column) {
column.forEach(function (cell) {
if (cell) {
self.addTile(cell);
}
});
});

self.updateScore(metadata.score);
self.updateBestScore(metadata.bestScore);

if (metadata.terminated) {
if (metadata.over) {
self.message(false); // You lose
} else if (metadata.won) {
self.message(true); // You win!
}
}

});
};

// Continues the game (both restart and keep playing)
HTMLActuator.prototype.continueGame = function () {
this.clearMessage();
};

HTMLActuator.prototype.clearContainer = function (container) {
while (container.firstChild) {
container.removeChild(container.firstChild);
}
};

HTMLActuator.prototype.addTile = function (tile) {
var self = this;

var wrapper = document.createElement(“div”);
var inner = document.createElement(“div”);
var position = tile.previousPosition || { x: tile.x, y: tile.y };
var positionClass = this.positionClass(position);

// We can’t use classlist because it somehow glitches when replacing classes
var classes = [“tile”, “tile-” + tile.value, positionClass];

if (tile.value > 2048) classes.push(“tile-super”);

this.applyClasses(wrapper, classes);

inner.classList.add(“tile-inner”);
inner.textContent = tile.value;

if (tile.previousPosition) {
// Make sure that the tile gets rendered in the previous position first
window.requestAnimationFrame(function () {
classes[2] = self.positionClass({ x: tile.x, y: tile.y });
self.applyClasses(wrapper, classes); // Update the position
});
} else if (tile.mergedFrom) {
classes.push(“tile-merged”);
this.applyClasses(wrapper, classes);

// Render the tiles that merged
tile.mergedFrom.forEach(function (merged) {
self.addTile(merged);
});
} else {
classes.push(“tile-new”);
this.applyClasses(wrapper, classes);
}

// Add the inner part of the tile to the wrapper
wrapper.appendChild(inner);

// Put the tile on the board
this.tileContainer.appendChild(wrapper);
};

HTMLActuator.prototype.applyClasses = function (element, classes) {
element.setAttribute(“class”, classes.join(” “));
};

HTMLActuator.prototype.normalizePosition = function (position) {
return { x: position.x + 1, y: position.y + 1 };
};

HTMLActuator.prototype.positionClass = function (position) {
position = this.normalizePosition(position);
return “tile-position-” + position.x + “-” + position.y;
};

HTMLActuator.prototype.updateScore = function (score) {
this.clearContainer(this.scoreContainer);

var difference = score – this.score;
this.score = score;

this.scoreContainer.textContent = this.score;

if (difference > 0) {
var addition = document.createElement(“div”);
addition.classList.add(“score-addition”);
addition.textContent = “+” + difference;

this.scoreContainer.appendChild(addition);
}
};

HTMLActuator.prototype.updateBestScore = function (bestScore) {
this.bestContainer.textContent = bestScore;
};

HTMLActuator.prototype.message = function (won) {
var type = won ? “game-won” : “game-over”;
var message = won ? “You win!” : “Game over!”;

this.messageContainer.classList.add(type);
this.messageContainer.getElementsByTagName(“p”)[0].textContent = message;
};

HTMLActuator.prototype.clearMessage = function () {
// IE only takes one value to remove at a time.
this.messageContainer.classList.remove(“game-won”);
this.messageContainer.classList.remove(“game-over”);
};
function KeyboardInputManager() {
this.events = {};

if (window.navigator.msPointerEnabled) {
//Internet Explorer 10 style
this.eventTouchstart = “MSPointerDown”;
this.eventTouchmove = “MSPointerMove”;
this.eventTouchend = “MSPointerUp”;
} else {
this.eventTouchstart = “touchstart”;
this.eventTouchmove = “touchmove”;
this.eventTouchend = “touchend”;
}

this.listen();
}

KeyboardInputManager.prototype.on = function (event, callback) {
if (!this.events[event]) {
this.events[event] = [];
}
this.events[event].push(callback);
};

KeyboardInputManager.prototype.emit = function (event, data) {
var callbacks = this.events[event];
if (callbacks) {
callbacks.forEach(function (callback) {
callback(data);
});
}
};

KeyboardInputManager.prototype.listen = function () {
var self = this;

var map = {
38: 0, // Up
39: 1, // Right
40: 2, // Down
37: 3, // Left
75: 0, // Vim up
76: 1, // Vim right
74: 2, // Vim down
72: 3, // Vim left
87: 0, // W
68: 1, // D
83: 2, // S
65: 3 // A
};

// Respond to direction keys
document.addEventListener(“keydown”, function (event) {
var modifiers = event.altKey || event.ctrlKey || event.metaKey ||
event.shiftKey;
var mapped = map[event.which];

if (!modifiers) {
if (mapped !== undefined) {
event.preventDefault();
self.emit(“move”, mapped);
}
}

// R key restarts the game
if (!modifiers && event.which === 82) {
self.restart.call(self, event);
}
});

// Respond to button presses
this.bindButtonPress(“.retry-button”, this.restart);
this.bindButtonPress(“.restart-button”, this.restart);
this.bindButtonPress(“.keep-playing-button”, this.keepPlaying);

// Respond to swipe events
var touchStartClientX, touchStartClientY;
var gameContainer = document.getElementsByClassName(“game-container”)[0];

gameContainer.addEventListener(this.eventTouchstart, function (event) {
if ((!window.navigator.msPointerEnabled && event.touches.length > 1) ||
event.targetTouches.length > 1) {
return; // Ignore if touching with more than 1 finger
}

if (window.navigator.msPointerEnabled) {
touchStartClientX = event.pageX;
touchStartClientY = event.pageY;
} else {
touchStartClientX = event.touches[0].clientX;
touchStartClientY = event.touches[0].clientY;
}

event.preventDefault();
});

gameContainer.addEventListener(this.eventTouchmove, function (event) {
event.preventDefault();
});

gameContainer.addEventListener(this.eventTouchend, function (event) {
if ((!window.navigator.msPointerEnabled && event.touches.length > 0) ||
event.targetTouches.length > 0) {
return; // Ignore if still touching with one or more fingers
}

var touchEndClientX, touchEndClientY;

if (window.navigator.msPointerEnabled) {
touchEndClientX = event.pageX;
touchEndClientY = event.pageY;
} else {
touchEndClientX = event.changedTouches[0].clientX;
touchEndClientY = event.changedTouches[0].clientY;
}

var dx = touchEndClientX – touchStartClientX;
var absDx = Math.abs(dx);

var dy = touchEndClientY – touchStartClientY;
var absDy = Math.abs(dy);

if (Math.max(absDx, absDy) > 10) {
// (right : left) : (down : up)
self.emit(“move”, absDx > absDy ? (dx > 0 ? 1 : 3) : (dy > 0 ? 2 : 0));
}
});
};

KeyboardInputManager.prototype.restart = function (event) {
event.preventDefault();
this.emit(“restart”);
};

KeyboardInputManager.prototype.keepPlaying = function (event) {
event.preventDefault();
this.emit(“keepPlaying”);
};

KeyboardInputManager.prototype.bindButtonPress = function (selector, fn) {
var button = document.querySelector(selector);
button.addEventListener(“click”, fn.bind(this));
button.addEventListener(this.eventTouchend, fn.bind(this));
};
window.fakeStorage = {
_data: {},

setItem: function (id, val) {
return this._data[id] = String(val);
},

getItem: function (id) {
return this._data.hasOwnProperty(id) ? this._data[id] : undefined;
},

removeItem: function (id) {
return delete this._data[id];
},

clear: function () {
return this._data = {};
}
};

function LocalStorageManager() {
this.bestScoreKey = “bestScore”;
this.gameStateKey = “gameState”;

var supported = this.localStorageSupported();
this.storage = supported ? window.localStorage : window.fakeStorage;
}

LocalStorageManager.prototype.localStorageSupported = function () {
var testKey = “test”;

try {
var storage = window.localStorage;
storage.setItem(testKey, “1”);
storage.removeItem(testKey);
return true;
} catch (error) {
return false;
}
};

// Best score getters/setters
LocalStorageManager.prototype.getBestScore = function () {
return this.storage.getItem(this.bestScoreKey) || 0;
};

LocalStorageManager.prototype.setBestScore = function (score) {
this.storage.setItem(this.bestScoreKey, score);
};

// Game state getters/setters and clearing
LocalStorageManager.prototype.getGameState = function () {
var stateJSON = this.storage.getItem(this.gameStateKey);
return stateJSON ? JSON.parse(stateJSON) : null;
};

LocalStorageManager.prototype.setGameState = function (gameState) {
this.storage.setItem(this.gameStateKey, JSON.stringify(gameState));
};

LocalStorageManager.prototype.clearGameState = function () {
this.storage.removeItem(this.gameStateKey);
};
function Tile(position, value) {
this.x = position.x;
this.y = position.y;
this.value = value || 2;

this.previousPosition = null;
this.mergedFrom = null; // Tracks tiles that merged together
}

Tile.prototype.savePosition = function () {
this.previousPosition = { x: this.x, y: this.y };
};

Tile.prototype.updatePosition = function (position) {
this.x = position.x;
this.y = position.y;
};

Tile.prototype.serialize = function () {
return {
position: {
x: this.x,
y: this.y
},
value: this.value
};
};

</script>
</body>

</html>

 

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