reduce glow opacity
reduce glow opacity

file:b/README.md (new)
--- /dev/null
+++ b/README.md
@@ -1,1 +1,7 @@
+# 2048
+A small clone of [1024](https://play.google.com/store/apps/details?id=com.veewo.a1024), based on [Saming's 2048](saming.fr/p/2048/) (also a clone).
 
+Made just for fun.
+
+[![Screenshot](http://pictures.gabrielecirulli.com/2048-20140305-170629.png)](http://pictures.gabrielecirulli.com/2048-20140305-170629.png)
+

file:a/index.html -> file:b/index.html
--- a/index.html
+++ b/index.html
@@ -4,7 +4,7 @@
   <meta charset="utf-8">
   <title>2048</title>
 
-  <link href="style/style.css" rel="stylesheet" type="text/css">
+  <link href="style/main.css" rel="stylesheet" type="text/css">
 </head>
 <body>
   <div class="container">
@@ -42,8 +42,35 @@
         <div class="tile tile-2 tile-position-1-1">
           2
         </div>
-        <div class="tile tile-4 tile-position-2-3">
+        <div class="tile tile-4 tile-position-2-1">
           4
+        </div>
+        <div class="tile tile-8 tile-position-3-1">
+          8
+        </div>
+        <div class="tile tile-16 tile-position-4-1">
+          16
+        </div>
+        <div class="tile tile-32 tile-position-1-2">
+          32
+        </div>
+        <div class="tile tile-64 tile-position-2-2">
+          64
+        </div>
+        <div class="tile tile-128 tile-position-3-2">
+          128
+        </div>
+        <div class="tile tile-256 tile-position-4-2">
+          256
+        </div>
+        <div class="tile tile-512 tile-position-1-3">
+          512
+        </div>
+        <div class="tile tile-1024 tile-position-2-3">
+          1024
+        </div>
+        <div class="tile tile-2048 tile-position-3-3">
+          2048
         </div>
       </div>
     </div>

--- /dev/null
+++ b/style/helpers.scss
@@ -1,1 +1,33 @@
+// Exponent
+// From: https://github.com/Team-Sass/Sassy-math/blob/master/sass/math.scss#L36
 
+@function exponent($base, $exponent) {
+  // reset value
+  $value: $base;
+  // positive intergers get multiplied
+  @if $exponent > 1 {
+    @for $i from 2 through $exponent {
+      $value: $value * $base; } }
+  // negitive intergers get divided. A number divided by itself is 1
+  @if $exponent < 1 {
+    @for $i from 0 through -$exponent {
+      $value: $value / $base; } }
+  // return the last value written
+  @return $value;
+}
+
+@function pow($base, $exponent) {
+  @return exponent($base, $exponent);
+}
+
+// Transition mixins
+@mixin transition($args...) {
+  -webkit-transition: $args;
+  -moz-transition: $args;
+}
+
+@mixin transition-property($args...) {
+  -webkit-transition-property: $args;
+  -moz-transition-property: $args;
+}
+

file:b/style/main.css (new)
--- /dev/null
+++ b/style/main.css
@@ -1,1 +1,182 @@
+@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; }
 
+body {
+  margin: 80px 0; }
+
+h1 {
+  font-size: 80px;
+  font-weight: bold;
+  margin: 0; }
+
+.container {
+  width: 500px;
+  margin: 0 auto; }
+
+.game-container {
+  margin-top: 50px;
+  position: relative;
+  padding: 15px;
+  cursor: default;
+  -webkit-touch-callout: none;
+  -webkit-user-select: none;
+  -moz-user-select: none;
+  background: #bbada0;
+  border-radius: 6px;
+  width: 500px;
+  height: 500px;
+  box-sizing: border-box; }
+
+.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 {
+  background: red;
+  width: 106.25px;
+  height: 106.25px;
+  border-radius: 3px;
+  background: #eee4da;
+  text-align: center;
+  line-height: 116.25px;
+  font-size: 55px;
+  font-weight: bold;
+  -webkit-transition: 200ms ease;
+  -moz-transition: 200ms ease;
+  -webkit-transition-property: top, left;
+  -moz-transition-property: top, left; }
+  .tile.tile-position-1-1 {
+    position: absolute;
+    left: 0px;
+    top: 0px; }
+  .tile.tile-position-1-2 {
+    position: absolute;
+    left: 0px;
+    top: 121.25px; }
+  .tile.tile-position-1-3 {
+    position: absolute;
+    left: 0px;
+    top: 242.5px; }
+  .tile.tile-position-1-4 {
+    position: absolute;
+    left: 0px;
+    top: 363.75px; }
+  .tile.tile-position-2-1 {
+    position: absolute;
+    left: 121.25px;
+    top: 0px; }
+  .tile.tile-position-2-2 {
+    position: absolute;
+    left: 121.25px;
+    top: 121.25px; }
+  .tile.tile-position-2-3 {
+    position: absolute;
+    left: 121.25px;
+    top: 242.5px; }
+  .tile.tile-position-2-4 {
+    position: absolute;
+    left: 121.25px;
+    top: 363.75px; }
+  .tile.tile-position-3-1 {
+    position: absolute;
+    left: 242.5px;
+    top: 0px; }
+  .tile.tile-position-3-2 {
+    position: absolute;
+    left: 242.5px;
+    top: 121.25px; }
+  .tile.tile-position-3-3 {
+    position: absolute;
+    left: 242.5px;
+    top: 242.5px; }
+  .tile.tile-position-3-4 {
+    position: absolute;
+    left: 242.5px;
+    top: 363.75px; }
+  .tile.tile-position-4-1 {
+    position: absolute;
+    left: 363.75px;
+    top: 0px; }
+  .tile.tile-position-4-2 {
+    position: absolute;
+    left: 363.75px;
+    top: 121.25px; }
+  .tile.tile-position-4-3 {
+    position: absolute;
+    left: 363.75px;
+    top: 242.5px; }
+  .tile.tile-position-4-4 {
+    position: absolute;
+    left: 363.75px;
+    top: 363.75px; }
+  .tile.tile-2 {
+    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 {
+    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 {
+    background: #edddb7;
+    box-shadow: 0 0 30px 10px rgba(243, 215, 116, 0), inset 0 0 0 1px rgba(255, 255, 255, 0); }
+  .tile.tile-16 {
+    background: #edd9a6;
+    box-shadow: 0 0 30px 10px rgba(243, 215, 116, 0), inset 0 0 0 1px rgba(255, 255, 255, 0); }
+  .tile.tile-32 {
+    background: #edd695;
+    box-shadow: 0 0 30px 10px rgba(243, 215, 116, 0.07937), inset 0 0 0 1px rgba(255, 255, 255, 0.04762); }
+  .tile.tile-64 {
+    background: #edd384;
+    box-shadow: 0 0 30px 10px rgba(243, 215, 116, 0.15873), inset 0 0 0 1px rgba(255, 255, 255, 0.09524); }
+  .tile.tile-128 {
+    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; }
+  .tile.tile-256 {
+    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);
+    color: #ede9e5;
+    font-size: 45px; }
+  .tile.tile-512 {
+    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);
+    color: #f9f6f2;
+    font-size: 45px; }
+  .tile.tile-1024 {
+    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);
+    color: #f9f6f2;
+    font-size: 35px; }
+  .tile.tile-2048 {
+    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);
+    color: #f9f6f2;
+    font-size: 35px; }
+

file:b/style/main.scss (new)
--- /dev/null
+++ b/style/main.scss
@@ -1,1 +1,157 @@
+@import "helpers";
+@import "fonts/clear-sans.css";
 
+$field-width: 500px;
+$grid-spacing: 15px;
+$grid-row-cells: 4;
+$tile-size: ($field-width - $grid-spacing * ($grid-row-cells + 1)) / $grid-row-cells;
+$tile-border-radius: 3px;
+
+$text-color: #776E65;
+$gold-text-color: #f9f6f2;
+
+$tile-color: #eee4da;
+$tile-gold-color: #edc22e;
+$tile-gold-glow-color: lighten($tile-gold-color, 15%);
+
+html, body {
+  margin: 0;
+  padding: 0;
+
+  background: #faf8ef;
+  color: $text-color;
+  font-family: "Clear Sans", "Helvetica Neue", Arial, sans-serif;
+}
+
+body {
+  margin: 80px 0;
+}
+
+h1 {
+  font-size: 80px;
+  font-weight: bold;
+  margin: 0;
+}
+
+.container {
+  width: $field-width;
+  margin: 0 auto;
+}
+
+.game-container {
+  margin-top: 50px;
+  position: relative;
+  padding: $grid-spacing;
+
+  cursor: default;
+  -webkit-touch-callout: none;
+  -webkit-user-select: none;
+  -moz-user-select: none;
+
+  background: #bbada0;
+  border-radius: $tile-border-radius * 2;
+  width: $field-width;
+  height: $field-width;
+  box-sizing: border-box;
+}
+
+.grid-container {
+  position: absolute;
+  z-index: 1;
+}
+
+.grid-row {
+  margin-bottom: $grid-spacing;
+
+  &:last-child {
+    margin-bottom: 0;
+  }
+
+  &:after {
+    content: "";
+    display: block;
+    clear: both;
+  }
+}
+
+.grid-cell {
+  width: $tile-size;
+  height: $tile-size;
+  margin-right: $grid-spacing;
+  float: left;
+
+  border-radius: $tile-border-radius;
+
+  background: rgba($tile-color, .35);
+
+  &:last-child {
+    margin-right: 0;
+  }
+}
+
+.tile-container {
+  position: absolute;
+  z-index: 2;
+}
+
+.tile {
+  background: red;
+  width: $tile-size;
+  height: $tile-size;
+  border-radius: $tile-border-radius;
+
+  background: $tile-color;
+  text-align: center;
+  line-height: $tile-size + 10px;
+  font-size: 55px;
+  font-weight: bold;
+
+  @include transition(200ms ease);
+  @include transition-property(top, left);
+
+  @for $x from 1 through $grid-row-cells {
+    @for $y from 1 through $grid-row-cells {
+      &.tile-position-#{$x}-#{$y} {
+        position: absolute;
+        left: ($tile-size + $grid-spacing) * ($x - 1);
+        top: ($tile-size + $grid-spacing) * ($y - 1);
+      }
+    }
+  }
+
+  $base: 2;
+  $exponent: 1;
+  $limit: 11;
+
+  @while $exponent <= $limit {
+    $power: pow($base, $exponent);
+
+    $gold-percent: ($exponent - 1) / ($limit - 1) * 100;
+
+    $gold-text-percent: min($exponent + 2, $limit) / ($limit) * 100;
+
+    $glow-opacity: max($exponent - 4, 0) / ($limit - 4);
+
+    &.tile-#{$power} {
+      background: mix($tile-gold-color, $tile-color, $gold-percent);
+
+      box-shadow: 0 0 30px 10px rgba($tile-gold-glow-color, $glow-opacity / 1.8),
+                  inset 0 0 0 1px rgba(white, $glow-opacity / 3);
+
+      @if $exponent >= 8 {
+        color: mix($gold-text-color, $text-color, $gold-text-percent);
+      }
+
+      @if $power >= 100 and $power < 1000 {
+        font-size: 45px;
+      } @else if $power >= 1000 {
+        font-size: 35px;
+      }
+    }
+
+    $exponent: $exponent + 1;
+  }
+}
+
+
+

file:a/style/style.css (deleted)
--- a/style/style.css
+++ /dev/null
@@ -1,132 +1,1 @@
-@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; }
 
-body {
-  margin: 80px 0; }
-
-h1 {
-  font-size: 80px;
-  font-weight: bold;
-  margin: 0; }
-
-.container {
-  width: 500px;
-  margin: 0 auto; }
-
-.game-container {
-  margin-top: 50px;
-  position: relative;
-  padding: 15px;
-  background: #bbada0;
-  border-radius: 6px;
-  width: 500px;
-  height: 500px;
-  box-sizing: border-box; }
-
-.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 {
-  background: red;
-  width: 106.25px;
-  height: 106.25px;
-  border-radius: 3px;
-  background: #eee4da;
-  text-align: center;
-  line-height: 116.25px;
-  font-size: 60px;
-  font-weight: bold; }
-  .tile.tile-position-1-1 {
-    position: absolute;
-    left: 0px;
-    top: 0px; }
-  .tile.tile-position-1-2 {
-    position: absolute;
-    left: 0px;
-    top: 121.25px; }
-  .tile.tile-position-1-3 {
-    position: absolute;
-    left: 0px;
-    top: 242.5px; }
-  .tile.tile-position-1-4 {
-    position: absolute;
-    left: 0px;
-    top: 363.75px; }
-  .tile.tile-position-2-1 {
-    position: absolute;
-    left: 121.25px;
-    top: 0px; }
-  .tile.tile-position-2-2 {
-    position: absolute;
-    left: 121.25px;
-    top: 121.25px; }
-  .tile.tile-position-2-3 {
-    position: absolute;
-    left: 121.25px;
-    top: 242.5px; }
-  .tile.tile-position-2-4 {
-    position: absolute;
-    left: 121.25px;
-    top: 363.75px; }
-  .tile.tile-position-3-1 {
-    position: absolute;
-    left: 242.5px;
-    top: 0px; }
-  .tile.tile-position-3-2 {
-    position: absolute;
-    left: 242.5px;
-    top: 121.25px; }
-  .tile.tile-position-3-3 {
-    position: absolute;
-    left: 242.5px;
-    top: 242.5px; }
-  .tile.tile-position-3-4 {
-    position: absolute;
-    left: 242.5px;
-    top: 363.75px; }
-  .tile.tile-position-4-1 {
-    position: absolute;
-    left: 363.75px;
-    top: 0px; }
-  .tile.tile-position-4-2 {
-    position: absolute;
-    left: 363.75px;
-    top: 121.25px; }
-  .tile.tile-position-4-3 {
-    position: absolute;
-    left: 363.75px;
-    top: 242.5px; }
-  .tile.tile-position-4-4 {
-    position: absolute;
-    left: 363.75px;
-    top: 363.75px; }
-

file:a/style/style.scss (deleted)
--- a/style/style.scss
+++ /dev/null
@@ -1,110 +1,1 @@
-@import "fonts/clear-sans.css";
 
-$field-width: 500px;
-$grid-spacing: 15px;
-$grid-row-cells: 4;
-$tile-size: ($field-width - $grid-spacing * ($grid-row-cells + 1)) / $grid-row-cells;
-$tile-border-radius: 3px;
-
-$tile-color: #eee4da;
-
-html, body {
-  margin: 0;
-  padding: 0;
-
-  background: #faf8ef;
-  color: #776E65;
-  font-family: "Clear Sans", "Helvetica Neue", Arial, sans-serif;
-}
-
-body {
-  margin: 80px 0;
-}
-
-h1 {
-  font-size: 80px;
-  font-weight: bold;
-  margin: 0;
-}
-
-.container {
-  width: $field-width;
-  margin: 0 auto;
-}
-
-.game-container {
-  margin-top: 50px;
-  position: relative;
-  padding: $grid-spacing;
-
-  background: #bbada0;
-  border-radius: $tile-border-radius * 2;
-  width: $field-width;
-  height: $field-width;
-  box-sizing: border-box;
-}
-
-.grid-container {
-  position: absolute;
-  z-index: 1;
-}
-
-.grid-row {
-  margin-bottom: $grid-spacing;
-
-  &:last-child {
-    margin-bottom: 0;
-  }
-
-  &:after {
-    content: "";
-    display: block;
-    clear: both;
-  }
-}
-
-.grid-cell {
-  width: $tile-size;
-  height: $tile-size;
-  margin-right: $grid-spacing;
-  float: left;
-
-  border-radius: $tile-border-radius;
-
-  background: rgba($tile-color, .35);
-
-  &:last-child {
-    margin-right: 0;
-  }
-}
-
-.tile-container {
-  position: absolute;
-  z-index: 2;
-}
-
-.tile {
-  background: red;
-  width: $tile-size;
-  height: $tile-size;
-  border-radius: $tile-border-radius;
-
-  background: $tile-color;
-  text-align: center;
-  line-height: $tile-size + 10px;
-  font-size: 60px;
-  font-weight: bold;
-
-  @for $x from 1 through $grid-row-cells {
-    @for $y from 1 through $grid-row-cells {
-      &.tile-position-#{$x}-#{$y} {
-        position: absolute;
-        left: ($tile-size + $grid-spacing) * ($x - 1);
-        top: ($tile-size + $grid-spacing) * ($y - 1);
-      }
-    }
-  }
-}
-
-
-

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