Removed keyCode modifier (phaserjs#2542)

Author: photonstorm

README.md

@@ -385,7 +385,6 @@ You can read all about the philosophy behind Lazer [here](http://phaser.io/news/
 * Group.addAt has been refactored to be a simple call to `Group.add`, removing lots of duplicate code in the process.
 * Group.create has a new optional argument `index` which controls the index within the group to insert the child to. Where 0 is the bottom of the Group. It also now makes proper use of `Group.add`, cutting down on more duplicate code.
 * Group.createMultiple now returns an Array containing references to all of the children that the method created.
-* Keyboard now uses a new internal method `getKeyCode` to normalize the key code value based on browser support. It first checks for `event.key`, then `event.keyIdentifier` and finally `event.keyCode` (thanks @SVasilev #2542)
 
 ### Bug Fixes
 

src/input/Keyboard.js

@@ -360,37 +360,6 @@ Phaser.Keyboard.prototype = {
 
     },
 
-    /**
-    * Normalises the keyCode value from the browser and returns it.
-    *
-    * This is based on browser support. It first checks for `event.key`, then `event.keyIdentifier` 
-    * and finally `event.keyCode`
-    *
-    * @method Phaser.Keyboard#getKeyCode
-    * @param {KeyboardEvent} event
-    * @private
-    */
-    getKeyCode: function (event) {
-
-        if (event.key !== undefined)
-        {
-            return event.key;
-        }
-        else if (event.keyIdentifier !== undefined)
-        {
-            return event.keyIdentifier;
-        }
-        else if (event.keyCode !== undefined)
-        {
-            return event.keyCode;
-        }
-        else
-        {
-            return 0;
-        }
-
-    },
-
     /**
     * Process the keydown event.
     *
@@ -407,7 +376,7 @@ Phaser.Keyboard.prototype = {
             return;
         }
 
-        var key = this.getKeyCode(event);
+        var key = event.keyCode;
 
         //   The event is being captured but another hotkey may need it
         if (this._capture[key])
@@ -470,7 +439,7 @@ Phaser.Keyboard.prototype = {
             return;
         }
 
-        var key = this.getKeyCode(event);
+        var key = event.keyCode;
 
         if (this._capture[key])
         {