Add metadata images to meta folder for consistency
Add metadata images to meta folder for consistency

file:a/README.md -> file:b/README.md
# 2048 # 2048
A small clone of [1024](https://play.google.com/store/apps/details?id=com.veewo.a1024), based on [Saming's 2048](http://saming.fr/p/2048/) (also a clone). A small clone of [1024](https://play.google.com/store/apps/details?id=com.veewo.a1024), based on [Saming's 2048](http://saming.fr/p/2048/) (also a clone).
   
Made just for fun. [Play it here!](http://gabrielecirulli.github.io/2048/) Made just for fun. [Play it here!](http://gabrielecirulli.github.io/2048/)
   
[![Screenshot](http://pictures.gabrielecirulli.com/2048-20140309-234100.png)](http://pictures.gabrielecirulli.com/2048-20140309-234100.png) [![Screenshot](http://pictures.gabrielecirulli.com/2048-20140309-234100.png)](http://pictures.gabrielecirulli.com/2048-20140309-234100.png)
   
That screenshot is fake by, the way. I never reached 2048 :smile: That screenshot is fake, by the way. I never reached 2048 :smile:
   
## Contributing ## Contributing
Changes and improvements are more than welcome! Feel free to fork and open a pull request. Please make your changes in a specifically made branch and request to pull on `master`! If you can, please make sure the game fully works before sending the PR, as that will help speed up the process. Changes and improvements are more than welcome! Feel free to fork and open a pull request. Please make your changes in a specific branch and request to pull into `master`! If you can, please make sure the game fully works before sending the PR, as that will help speed up the process.
   
You can find the same information in the [contributing guide.](https://github.com/gabrielecirulli/2048/blob/master/CONTRIBUTING.md) You can find the same information in the [contributing guide.](https://github.com/gabrielecirulli/2048/blob/master/CONTRIBUTING.md)
   
## License ## License
2048 is licensed under the [MIT license.](https://github.com/gabrielecirulli/2048/blob/master/LICENSE.txt) 2048 is licensed under the [MIT license.](https://github.com/gabrielecirulli/2048/blob/master/LICENSE.txt)
   
  ## Donations
  I made this in my spare time, and it's hosted on GitHub (which means I don't have any hosting costs), but if you enjoyed the game and feel like buying me coffee, you can donate at my BTC address: `1Ec6onfsQmoP9kkL3zkpB6c5sA4PVcXU2i`. Thank you very much!
   
file:b/favicon.ico (new)
 Binary files /dev/null and b/favicon.ico differ
file:a/index.html -> file:b/index.html
<!DOCTYPE html> <!DOCTYPE html>
<html> <html>
<head> <head>
<meta charset="utf-8"> <meta charset="utf-8">
<title>2048</title> <title>2048</title>
   
<link href="style/main.css" rel="stylesheet" type="text/css"> <link href="style/main.css" rel="stylesheet" type="text/css">
  <link rel="shortcut icon" href="favicon.ico">
<script src="js/hammer.min.js"></script> <link rel="apple-touch-icon" href="/meta/apple-touch-icon.png">
<script src="js/keyboard_input_manager.js"></script> <meta name="apple-mobile-web-app-capable" content="yes">
<script src="js/html_actuator.js"></script>  
<script src="js/grid.js"></script>  
<script src="js/tile.js"></script>  
<script src="js/game_manager.js"></script>  
<script src="js/application.js"></script>  
   
<meta name="HandheldFriendly" content="True"> <meta name="HandheldFriendly" content="True">
<meta name="MobileOptimized" content="320"> <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"> <meta name="viewport" content="width=device-width, target-densitydpi=160dpi, initial-scale=1.0, maximum-scale=1, user-scalable=no">
</head> </head>
<body> <body>
<div class="container"> <div class="container">
<div class="heading"> <div class="heading">
<h1 class="title">2048</h1> <h1 class="title">2048</h1>
<div class="score-container">0</div> <div class="score-container">0</div>
</div> </div>
<p class="game-intro">Join the numbers and get to the <strong>2048 tile!</strong></p> <p class="game-intro">Join the numbers and get to the <strong>2048 tile!</strong></p>
   
<div class="game-container"> <div class="game-container">
<div class="game-message"> <div class="game-message">
<p></p> <p></p>
<div class="lower"> <div class="lower">
<a class="retry-button">Try again</a> <a class="retry-button">Try again</a>
</div> </div>
</div> </div>
   
<div class="grid-container"> <div class="grid-container">
<div class="grid-row"> <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 class="grid-cell"></div> <div class="grid-cell"></div>
<div class="grid-cell"></div> <div class="grid-cell"></div>
</div> </div>
<div class="grid-row"> <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 class="grid-cell"></div> <div class="grid-cell"></div>
<div class="grid-cell"></div> <div class="grid-cell"></div>
</div> </div>
<div class="grid-row"> <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 class="grid-cell"></div> <div class="grid-cell"></div>
<div class="grid-cell"></div> <div class="grid-cell"></div>
</div> </div>
<div class="grid-row"> <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 class="grid-cell"></div> <div class="grid-cell"></div>
<div class="grid-cell"></div> <div class="grid-cell"></div>
</div> </div>
</div> </div>
   
<div class="tile-container"> <div class="tile-container">
   
</div> </div>
</div> </div>
   
<p class="game-explanation"> <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> <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> </p>
<hr> <hr>
<p> <p>
Created by <a href="http://gabrielecirulli.com" target="_blank">Gabriele Cirulli.</a> Based on <a href="https://itunes.apple.com/us/app/1024!/id823499224" target="_blank">1024 by Veewo Studio</a> and conceptually similar to <a href="http://asherv.com/threes/" target="_blank">Threes by Asher Vollmer.</a> Created by <a href="http://gabrielecirulli.com" target="_blank">Gabriele Cirulli.</a> Based on <a href="https://itunes.apple.com/us/app/1024!/id823499224" target="_blank">1024 by Veewo Studio</a> and conceptually similar to <a href="http://asherv.com/threes/" target="_blank">Threes by Asher Vollmer.</a>
</p> </p>
</div> </div>
   
  <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/game_manager.js"></script>
  <script src="js/application.js"></script>
</body> </body>
</html> </html>
   
  (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, element) {
  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);
  };
  }
  }());
 
document.addEventListener("DOMContentLoaded", function () { // Wait till the browser is ready to render the game (avoids glitches)
// Wait till the browser is ready to render the game (avoids glitches) window.requestAnimationFrame(function () {
window.requestAnimationFrame(function () { var manager = new GameManager(4, KeyboardInputManager, HTMLActuator);
var manager = new GameManager(4, KeyboardInputManager, HTMLActuator);  
});  
}); });
   
file:a/js/hammer.min.js (deleted)
/*! Hammer.JS - v1.0.6 - 2014-01-02  
* http://eightmedia.github.com/hammer.js  
*  
* Copyright (c) 2014 Jorik Tangelder <j.tangelder@gmail.com>;  
* Licensed under the MIT license */  
 
 
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d.EVENT_END:clearTimeout(this.timer)}}},d.gestures.Release={name:"release",index:1/0,handler:function(a,b){a.eventType==d.EVENT_END&&b.trigger(this.name,a)}},d.gestures.Swipe={name:"swipe",index:40,defaults:{swipe_min_touches:1,swipe_max_touches:1,swipe_velocity:.7},handler:function(a,b){if(a.eventType==d.EVENT_END){if(b.options.swipe_max_touches>0&&a.touches.length<b.options.swipe_min_touches&&a.touches.length>b.options.swipe_max_touches)return;(a.velocityX>b.options.swipe_velocity||a.velocityY>b.options.swipe_velocity)&&(b.trigger(this.name,a),b.trigger(this.name+a.direction,a))}}},d.gestures.Tap={name:"tap",index:100,defaults:{tap_max_touchtime:250,tap_max_distance:10,tap_always:!0,doubletap_distance:20,doubletap_interval:300},handler:function(a,b){if(a.eventType==d.EVENT_END&&"touchcancel"!=a.srcEvent.type){var c=d.detection.previous,e=!1;if(a.deltaTime>b.options.tap_max_touchtime||a.distance>b.options.tap_max_distance)return;c&&"tap"==c.name&&a.timeStamp-c.lastEvent.timeStamp<b.options.doubletap_interval&&a.distance<b.options.doubletap_distance&&(b.trigger("doubletap",a),e=!0),(!e||b.options.tap_always)&&(d.detection.current.name="tap",b.trigger(d.detection.current.name,a))}}},d.gestures.Touch={name:"touch",index:-1/0,defaults:{prevent_default:!1,prevent_mouseevents:!1},handler:function(a,b){return b.options.prevent_mouseevents&&a.pointerType==d.POINTER_MOUSE?(a.stopDetect(),void 0):(b.options.prevent_default&&a.preventDefault(),a.eventType==d.EVENT_START&&b.trigger(this.name,a),void 0)}},d.gestures.Transform={name:"transform",index:45,defaults:{transform_min_scale:.01,transform_min_rotation:1,transform_always_block:!1},triggered:!1,handler:function(a,b){if(d.detection.current.name!=this.name&&this.triggered)return b.trigger(this.name+"end",a),this.triggered=!1,void 0;if(!(a.touches.length<2))switch(b.options.transform_always_block&&a.preventDefault(),a.eventType){case d.EVENT_START:this.triggered=!1;break;case d.EVENT_MOVE:var c=Math.abs(1-a.scale),e=Math.abs(a.rotation);if(c<b.options.transform_min_scale&&e<b.options.transform_min_rotation)return;d.detection.current.name=this.name,this.triggered||(b.trigger(this.name+"start",a),this.triggered=!0),b.trigger(this.name,a),e>b.options.transform_min_rotation&&b.trigger("rotate",a),c>b.options.transform_min_scale&&(b.trigger("pinch",a),b.trigger("pinch"+(a.scale<1?"in":"out"),a));break;case d.EVENT_END:this.triggered&&b.trigger(this.name+"end",a),this.triggered=!1}}},"function"==typeof define&&"object"==typeof define.amd&&define.amd?define(function(){return d}):"object"==typeof module&&"object"==typeof module.exports?module.exports=d:a.Hammer=d}(this);  
//# sourceMappingURL=hammer.min.map  
function KeyboardInputManager() { function KeyboardInputManager() {
this.events = {}; this.events = {};
   
this.listen(); this.listen();
} }
   
KeyboardInputManager.prototype.on = function (event, callback) { KeyboardInputManager.prototype.on = function (event, callback) {
if (!this.events[event]) { if (!this.events[event]) {
this.events[event] = []; this.events[event] = [];
} }
this.events[event].push(callback); this.events[event].push(callback);
}; };
   
KeyboardInputManager.prototype.emit = function (event, data) { KeyboardInputManager.prototype.emit = function (event, data) {
var callbacks = this.events[event]; var callbacks = this.events[event];
if (callbacks) { if (callbacks) {
callbacks.forEach(function (callback) { callbacks.forEach(function (callback) {
callback(data); callback(data);
}); });
} }
}; };
   
KeyboardInputManager.prototype.listen = function () { KeyboardInputManager.prototype.listen = function () {
var self = this; var self = this;
   
var map = { var map = {
38: 0, // Up 38: 0, // Up
39: 1, // Right 39: 1, // Right
40: 2, // Down 40: 2, // Down
37: 3, // Left 37: 3, // Left
75: 0, // vim keybindings 75: 0, // vim keybindings
76: 1, 76: 1,
74: 2, 74: 2,
72: 3 72: 3,
  87: 0, // W
  68: 1, // D
  83: 2, // S
  65: 3 // A
}; };
   
document.addEventListener("keydown", function (event) { document.addEventListener("keydown", function (event) {
var modifiers = event.altKey || event.ctrlKey || event.metaKey || var modifiers = event.altKey || event.ctrlKey || event.metaKey ||
event.shiftKey; event.shiftKey;
var mapped = map[event.which]; var mapped = map[event.which];
   
if (!modifiers) { if (!modifiers) {
if (mapped !== undefined) { if (mapped !== undefined) {
event.preventDefault(); event.preventDefault();
self.emit("move", mapped); self.emit("move", mapped);
} }
   
if (event.which === 32) self.restart.bind(self)(event); if (event.which === 32) self.restart.bind(self)(event);
} }
}); });
   
var retry = document.getElementsByClassName("retry-button")[0]; var retry = document.getElementsByClassName("retry-button")[0];
retry.addEventListener("click", this.restart.bind(this)); retry.addEventListener("click", this.restart.bind(this));
   
// Listen to swipe events // Listen to swipe events
var gestures = [Hammer.DIRECTION_UP, Hammer.DIRECTION_RIGHT, var touchStartClientX, touchStartClientY;
Hammer.DIRECTION_DOWN, Hammer.DIRECTION_LEFT]; var gameContainer = document.getElementsByClassName("game-container")[0];
  gameContainer.addEventListener("touchstart", function(event) {
  if (event.touches.length > 1) return;
   
var gameContainer = document.getElementsByClassName("game-container")[0]; touchStartClientX = event.touches[0].clientX;
var handler = Hammer(gameContainer, { touchStartClientY = event.touches[0].clientY;
drag_block_horizontal: true, event.preventDefault();
drag_block_vertical: true  
}); });
  gameContainer.addEventListener("touchmove", function(event) {
handler.on("swipe", function (event) { event.preventDefault();
event.gesture.preventDefault(); });
mapped = gestures.indexOf(event.gesture.direction); gameContainer.addEventListener("touchend", function(event) {
  if (event.touches.length > 0) {
  return;
  }
  var dx = event.changedTouches[0].clientX - touchStartClientX;
  var absDx = Math.abs(dx);
   
if (mapped !== -1) self.emit("move", mapped); var dy = event.changedTouches[0].clientY - 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) { KeyboardInputManager.prototype.restart = function (event) {
event.preventDefault(); event.preventDefault();
this.emit("restart"); this.emit("restart");
}; };
   
 Binary files /dev/null and b/meta/apple-touch-icon.png differ
@import "helpers"; @import "helpers";
@import "fonts/clear-sans.css"; @import "fonts/clear-sans.css";
   
$field-width: 500px; $field-width: 500px;
$grid-spacing: 15px; $grid-spacing: 15px;
$grid-row-cells: 4; $grid-row-cells: 4;
$tile-size: ($field-width - $grid-spacing * ($grid-row-cells + 1)) / $grid-row-cells; $tile-size: ($field-width - $grid-spacing * ($grid-row-cells + 1)) / $grid-row-cells;
$tile-border-radius: 3px; $tile-border-radius: 3px;
   
$text-color: #776E65; $text-color: #776E65;
$bright-text-color: #f9f6f2; $bright-text-color: #f9f6f2;
   
$tile-color: #eee4da; $tile-color: #eee4da;
$tile-gold-color: #edc22e; $tile-gold-color: #edc22e;
$tile-gold-glow-color: lighten($tile-gold-color, 15%); $tile-gold-glow-color: lighten($tile-gold-color, 15%);
   
$game-container-background: #bbada0; $game-container-background: #bbada0;
   
$transition-speed: 100ms; $transition-speed: 100ms;
   
html, body { html, body {
margin: 0; margin: 0;
padding: 0; padding: 0;
   
background: #faf8ef; background: #faf8ef;
color: $text-color; color: $text-color;
font-family: "Clear Sans", "Helvetica Neue", Arial, sans-serif; font-family: "Clear Sans", "Helvetica Neue", Arial, sans-serif;
font-size: 18px; font-size: 18px;
} }
   
body { body {
margin: 80px 0; margin: 80px 0;
} }
   
.heading:after { .heading:after {
content: ""; content: "";
display: block; display: block;
clear: both; clear: both;
} }
   
h1.title { h1.title {
font-size: 80px; font-size: 80px;
font-weight: bold; font-weight: bold;
margin: 0; margin: 0;
display: block; display: block;
float: left; float: left;
} }
   
@include keyframes(move-up) { @include keyframes(move-up) {
0% { 0% {
top: 25px; top: 25px;
opacity: 1; opacity: 1;
} }
   
100% { 100% {
top: -50px; top: -50px;
opacity: 0; opacity: 0;
} }
} }
   
.score-container { .score-container {
$height: 25px; $height: 25px;
   
position: relative; position: relative;
float: right; float: right;
background: $game-container-background; background: $game-container-background;
padding: 15px 25px; padding: 15px 25px;
font-size: $height; font-size: $height;
height: $height; height: $height;
line-height: $height + 22px; line-height: $height + 22px;
font-weight: bold; font-weight: bold;
border-radius: 3px; border-radius: 3px;
color: white; color: white;
margin-top: 8px; margin-top: 8px;
   
&:after { &:after {
position: absolute; position: absolute;
width: 100%; width: 100%;
top: 10px; top: 10px;
left: 0; left: 0;
content: "Score"; content: "Score";
text-transform: uppercase; text-transform: uppercase;
font-size: 13px; font-size: 13px;
line-height: 13px; line-height: 13px;
text-align: center; text-align: center;
color: $tile-color; color: $tile-color;
} }
   
.score-addition { .score-addition {
position: absolute; position: absolute;
right: 30px; right: 30px;
color: red; color: red;
font-size: $height; font-size: $height;
line-height: $height; line-height: $height;
font-weight: bold; font-weight: bold;
color: rgba($text-color, .9); color: rgba($text-color, .9);
z-index: 100; z-index: 100;
@include animation(move-up 600ms ease-in); @include animation(move-up 600ms ease-in);
@include animation-fill-mode(both); @include animation-fill-mode(both);
} }
} }
   
p { p {
margin-top: 0; margin-top: 0;
margin-bottom: 10px; margin-bottom: 10px;
line-height: 1.65; line-height: 1.65;
} }
   
a { a {
color: $text-color; color: $text-color;
font-weight: bold; font-weight: bold;
text-decoration: underline; text-decoration: underline;
cursor: pointer; cursor: pointer;
} }
   
strong { strong {
&.important { &.important {
text-transform: uppercase; text-transform: uppercase;
} }
} }
   
hr { hr {
border: none; border: none;
border-bottom: 1px solid lighten($text-color, 40%); border-bottom: 1px solid lighten($text-color, 40%);
margin-top: 20px; margin-top: 20px;
margin-bottom: 30px; margin-bottom: 30px;
} }
   
.container { .container {
width: $field-width; width: $field-width;
margin: 0 auto; margin: 0 auto;
} }
   
@include keyframes(fade-in) { @include keyframes(fade-in) {
0% { 0% {
opacity: 0; opacity: 0;
} }
   
100% { 100% {
opacity: 1; opacity: 1;
} }
} }
   
  // Styles for buttons
  @mixin button {
  display: inline-block;
  background: darken($game-container-background, 20%);
  border-radius: 3px;
  padding: 0 20px;
  text-decoration: none;
  color: $bright-text-color;
  height: 40px;
  line-height: 42px;
  }
   
// Game field mixin used to render CSS at different width // Game field mixin used to render CSS at different width
@mixin game-field { @mixin game-field {
.game-container { .game-container {
margin-top: 40px; margin-top: 40px;
position: relative; position: relative;
padding: $grid-spacing; padding: $grid-spacing;
   
cursor: default; cursor: default;
-webkit-touch-callout: none; -webkit-touch-callout: none;
-webkit-user-select: none; -webkit-user-select: none;
-moz-user-select: none; -moz-user-select: none;
   
background: $game-container-background; background: $game-container-background;
border-radius: $tile-border-radius * 2; border-radius: $tile-border-radius * 2;
width: $field-width; width: $field-width;
height: $field-width; height: $field-width;
-webkit-box-sizing: border-box; -webkit-box-sizing: border-box;
-moz-box-sizing: border-box; -moz-box-sizing: border-box;
box-sizing: border-box; box-sizing: border-box;
   
.game-message { .game-message {
display: none; display: none;
   
position: absolute; position: absolute;
top: 0; top: 0;
right: 0; right: 0;
bottom: 0; bottom: 0;
left: 0; left: 0;
background: rgba($tile-color, .5); background: rgba($tile-color, .5);
z-index: 100; z-index: 100;
   
text-align: center; text-align: center;
   
p { p {
font-size: 60px; font-size: 60px;
font-weight: bold; font-weight: bold;
height: 60px; height: 60px;
line-height: 60px; line-height: 60px;
margin-top: 222px; margin-top: 222px;
// height: $field-width; // height: $field-width;
// line-height: $field-width; // line-height: $field-width;
} }
   
.lower { .lower {
display: block; display: block;
margin-top: 59px; margin-top: 59px;
} }
   
a { a {
display: inline-block; @include button;
background: darken($game-container-background, 20%);  
border-radius: 3px;  
padding: 0 20px;  
text-decoration: none;  
color: $bright-text-color;  
height: 40px;  
line-height: 42px;  
margin-left: 9px; margin-left: 9px;
// margin-top: 59px; // margin-top: 59px;
} }
   
@include animation(fade-in 800ms ease $transition-speed * 12); @include animation(fade-in 800ms ease $transition-speed * 12);
@include animation-fill-mode(both); @include animation-fill-mode(both);
   
&.game-won { &.game-won {
background: rgba($tile-gold-color, .5); background: rgba($tile-gold-color, .5);
color: $bright-text-color; color: $bright-text-color;
} }
   
&.game-won, &.game-over { &.game-won, &.game-over {
display: block; display: block;
} }
} }
} }
   
.grid-container { .grid-container {
position: absolute; position: absolute;
z-index: 1; z-index: 1;
} }
   
.grid-row { .grid-row {
margin-bottom: $grid-spacing; margin-bottom: $grid-spacing;
   
&:last-child { &:last-child {
margin-bottom: 0; margin-bottom: 0;
} }
   
&:after { &:after {
content: ""; content: "";
display: block; display: block;
clear: both; clear: both;
} }
} }
   
.grid-cell { .grid-cell {
width: $tile-size; width: $tile-size;
height: $tile-size; height: $tile-size;
margin-right: $grid-spacing; margin-right: $grid-spacing;
float: left; float: left;
   
border-radius: $tile-border-radius; border-radius: $tile-border-radius;
   
background: rgba($tile-color, .35); background: rgba($tile-color, .35);
   
&:last-child { &:last-child {
margin-right: 0; margin-right: 0;
} }
} }
   
.tile-container { .tile-container {
position: absolute; position: absolute;
z-index: 2; z-index: 2;
} }
   
.tile { .tile {
width: $tile-size; width: $tile-size;
height: $tile-size; height: $tile-size;
line-height: $tile-size + 10px; line-height: $tile-size + 10px;
   
// Build position classes // Build position classes
@for $x from 1 through $grid-row-cells { @for $x from 1 through $grid-row-cells {
@for $y from 1 through $grid-row-cells { @for $y from 1 through $grid-row-cells {
&.tile-position-#{$x}-#{$y} { &.tile-position-#{$x}-#{$y} {
position: absolute; position: absolute;
left: round(($tile-size + $grid-spacing) * ($x - 1)); left: round(($tile-size + $grid-spacing) * ($x - 1));
top: round(($tile-size + $grid-spacing) * ($y - 1)); top: round(($tile-size + $grid-spacing) * ($y - 1));
} }
} }
} }
} }
} }
   
// End of game-field mixin // End of game-field mixin
@include game-field; @include game-field;
   
.tile { .tile {
border-radius: $tile-border-radius; border-radius: $tile-border-radius;
   
background: $tile-color; background: $tile-color;
text-align: center; text-align: center;
font-weight: bold; font-weight: bold;
z-index: 10; z-index: 10;
   
font-size: 55px; font-size: 55px;
   
@include transition($transition-speed ease-in-out); @include transition($transition-speed ease-in-out);
@include transition-property(top, left); @include transition-property(top, left);
   
$base: 2; $base: 2;
$exponent: 1; $exponent: 1;
$limit: 11; $limit: 11;
   
// Colors for all 11 states, false = no special color // Colors for all 11 states, false = no special color
$special-colors: false false, // 2 $special-colors: false false, // 2
false false, // 4 false false, // 4
#f78e48 true, // 8 #f78e48 true, // 8
#fc5e2e true, // 16 #fc5e2e true, // 16
#ff3333 true, // 32 #ff3333 true, // 32
#ff0000 true, // 64 #ff0000 true, // 64
false true, // 128 false true, // 128
false true, // 256 false true, // 256
false true, // 512 false true, // 512
false true, // 1024 false true, // 1024
false true; // 2048 false true; // 2048
   
// Build tile colors // Build tile colors
@while $exponent <= $limit { @while $exponent <= $limit {
$power: pow($base, $exponent); $power: pow($base, $exponent);
   
&.tile-#{$power} { &.tile-#{$power} {
// Calculate base background color // Calculate base background color
$gold-percent: ($exponent - 1) / ($limit - 1) * 100; $gold-percent: ($exponent - 1) / ($limit - 1) * 100;
$mixed-background: mix($tile-gold-color, $tile-color, $gold-percent); $mixed-background: mix($tile-gold-color, $tile-color, $gold-percent);
   
$nth-color: nth($special-colors, $exponent); $nth-color: nth($special-colors, $exponent);
   
$special-background: nth($nth-color, 1); $special-background: nth($nth-color, 1);
$bright-color: nth($nth-color, 2); $bright-color: nth($nth-color, 2);
   
@if $special-background { @if $special-background {
$mixed-background: mix($special-background, $mixed-background, 55%); $mixed-background: mix($special-background, $mixed-background, 55%);
} }
   
@if $bright-color { @if $bright-color {
color: $bright-text-color; color: $bright-text-color;
} }
   
// Set background // Set background
background: $mixed-background; background: $mixed-background;
   
// Add glow // Add glow
$glow-opacity: max($exponent - 4, 0) / ($limit - 4); $glow-opacity: max($exponent - 4, 0) / ($limit - 4);
   
@if not $special-background { @if not $special-background {
box-shadow: 0 0 30px 10px rgba($tile-gold-glow-color, $glow-opacity / 1.8), box-shadow: 0 0 30px 10px rgba($tile-gold-glow-color, $glow-opacity / 1.8),
inset 0 0 0 1px rgba(white, $glow-opacity / 3); inset 0 0 0 1px rgba(white, $glow-opacity / 3);
} }
   
// Adjust font size for bigger numbers // Adjust font size for bigger numbers
@if $power >= 100 and $power < 1000 { @if $power >= 100 and $power < 1000 {
font-size: 45px; font-size: 45px;
   
// Media queries placed here to avoid carrying over the rest of the logic // Media queries placed here to avoid carrying over the rest of the logic
@include smaller(480px) { @include smaller(480px) {
font-size: 25px; font-size: 25px;
} }
} @else if $power >= 1000 { } @else if $power >= 1000 {
font-size: 35px; font-size: 35px;
   
@include smaller(480px) { @include smaller(480px) {
font-size: 15px; font-size: 15px;
} }
} }
} }
   
$exponent: $exponent + 1; $exponent: $exponent + 1;
} }
} }
   
@include keyframes(appear) { @include keyframes(appear) {
0% { 0% {
opacity: 0; opacity: 0;
-webkit-transform: scale(0); -webkit-transform: scale(0);
-moz-transform: scale(0); -moz-transform: scale(0);
} }
   
100% { 100% {
opacity: 1; opacity: 1;
-webkit-transform: scale(1); -webkit-transform: scale(1);
-moz-transform: scale(1); -moz-transform: scale(1);
} }
} }
   
.tile-new { .tile-new {
@include animation(appear 200ms ease $transition-speed); @include animation(appear 200ms ease $transition-speed);
@include animation-fill-mode(both); @include animation-fill-mode(both);
} }
   
@include keyframes(pop) { @include keyframes(pop) {
0% { 0% {
-webkit-transform: scale(0); -webkit-transform: scale(0);
-moz-transform: scale(0); -moz-transform: scale(0);
} }
   
50% { 50% {
-webkit-transform: scale(1.2); -webkit-transform: scale(1.2);
-moz-transform: scale(1.2); -moz-transform: scale(1.2);
} }
   
100% { 100% {
-webkit-transform: scale(1); -webkit-transform: scale(1);
-moz-transform: scale(1); -moz-transform: scale(1);
} }
} }
   
.tile-merged { .tile-merged {
z-index: 20; z-index: 20;
@include animation(pop 200ms ease $transition-speed); @include animation(pop 200ms ease $transition-speed);
@include animation-fill-mode(both); @include animation-fill-mode(both);
} }
   
.game-intro { .game-intro {
margin-bottom: 0; margin-bottom: 0;
} }
   
.game-explanation { .game-explanation {
margin-top: 50px; margin-top: 50px;
} }
   
@include smaller(480px) { @include smaller(480px) {
// Redefine variables for smaller screens // Redefine variables for smaller screens
$field-width: 280px; $field-width: 280px;
$grid-spacing: 10px; $grid-spacing: 10px;
$grid-row-cells: 4; $grid-row-cells: 4;
$tile-size: ($field-width - $grid-spacing * ($grid-row-cells + 1)) / $grid-row-cells; $tile-size: ($field-width - $grid-spacing * ($grid-row-cells + 1)) / $grid-row-cells;
$tile-border-radius: 3px; $tile-border-radius: 3px;
   
html, body { html, body {
font-size: 15px; font-size: 15px;
} }
   
body { body {
margin: 20px 0; margin: 20px 0;
padding: 0 20px; padding: 0 20px;
} }
   
h1.title { h1.title {
font-size: 50px; font-size: 50px;
} }
   
.container { .container {
width: $field-width; width: $field-width;
margin: 0 auto; margin: 0 auto;
} }
   
.score-container { .score-container {
margin-top: 0; margin-top: 0;
} }
   
.heading { .heading {
margin-bottom: 10px; margin-bottom: 10px;
} }
   
// Render the game field at the right width // Render the game field at the right width
@include game-field; @include game-field;
   
.game-container { .game-container {
margin-top: 20px; margin-top: 20px;
} }
   
// Rest of the font-size adjustments in the tile class // Rest of the font-size adjustments in the tile class
.tile { .tile {
font-size: 35px; font-size: 35px;
} }
   
.game-message { .game-message {
p { p {
font-size: 30px !important; font-size: 30px !important;
height: 30px !important; height: 30px !important;
line-height: 30px !important; line-height: 30px !important;
margin-top: 90px !important; margin-top: 90px !important;
} }
   
.lower { .lower {
margin-top: 30px !important; margin-top: 30px !important;
} }
} }
} }
   
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