add AMD support; fixes #6

tick version

.jshintrc

@@ -3,5 +3,8 @@
   "devel": true,
   "strict": true,
   "undef": true,
-  "unused": true
+  "unused": true,
+  "predef": {
+    "define": false
+  }
 }

bower.json

@@ -1,7 +1,7 @@
 {
   "name": "draggabilly",
-  "main": "./draggabilly.js",
-  "version": "1.0.1",
+  "main": "draggabilly.js",
+  "version": "1.0.2",
   "dependencies": {
     "classie": "desandro/classie",
     "eventEmitter": ">=3",

draggabilly.js

@@ -1,5 +1,5 @@
 /*!
- * Draggabilly v1.0.1
+ * Draggabilly v1.0.2
  * Make that shiz draggable
  * http://draggabilly.desandro.com
  */
@@ -8,13 +8,7 @@
 
 'use strict';
 
-// dependencies
-var classie = window.classie;
-var EventEmitter = window.EventEmitter;
-var eventie = window.eventie;
-var getStyleProperty = window.getStyleProperty;
-var getSize = window.getSize;
-
+// vars
 var document = window.document;
 
 // -------------------------- helpers -------------------------- //
@@ -88,6 +82,10 @@ if ( !requestAnimationFrame || !cancelAnimationFrame )  {
   };
 }
 
+// -------------------------- definition -------------------------- //
+
+function draggabillyDefinition( classie, EventEmitter, eventie, getStyleProperty, getSize ) {
+
 // -------------------------- support -------------------------- //
 
 var transformProperty = getStyleProperty('transform');
@@ -441,10 +439,31 @@ Draggabilly.prototype.disable = function() {
   }
 };
 
-// --------------------------  -------------------------- //
-
-
-// publicize
-window.Draggabilly = Draggabilly;
+return Draggabilly;
+
+} // end definition
+
+// -------------------------- transport -------------------------- //
+
+if ( typeof define === 'function' && define.amd ) {
+  // AMD
+  define( [
+      'classie',
+      'eventEmitter',
+      'eventie',
+      'get-style-property',
+      'get-size'
+    ],
+    draggabillyDefinition );
+} else {
+  // browser global
+  window.Draggabilly = draggabillyDefinition(
+    window.classie,
+    window.EventEmitter,
+    window.eventie,
+    window.getStyleProperty,
+    window.getSize
+  );
+}
 
 })( window );