text: /*global jQuery, friGame */
  /*jslint white: true, browser: true */
  
  // Copyright (c) 2011-2014 Franco Bugnano
  
  // Permission is hereby granted, free of charge, to any person obtaining a copy
  // of this software and associated documentation files (the "Software"), to deal
  // in the Software without restriction, including without limitation the rights
  // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  // copies of the Software, and to permit persons to whom the Software is
  // furnished to do so, subject to the following conditions:
  
  // The above copyright notice and this permission notice shall be included in
  // all copies or substantial portions of the Software.
  
  // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  // THE SOFTWARE.
  
  // Uses ideas and APIs inspired by:
  // gameQuery Copyright (c) 2008 Selim Arsever (gamequery.onaluf.org), licensed under the MIT
  
  (function ($, fg) {
  	'use strict';
  
  	// Some constants that map to the keyCode
  	fg.keyCodes = {
  		8: 'backspace',
  		9: 'tab',
  		13: 'enter',
  		16: 'shift',
  		17: 'ctrl',
  		18: 'alt',
  		19: 'pause',
  		20: 'caps',
  		27: 'escape',
  		32: 'space',
  		33: 'pageup',
  		34: 'pagedown',
  		35: 'end',
  		36: 'home',
  		37: 'left',
  		38: 'up',
  		39: 'right',
  		40: 'down',
  		45: 'insert',
  		46: 'del'
  	};
  
  	(function () {
  		var
  			i,
  			keycodes = fg.keyCodes
  		;
  
  		for (i = 48; i <= 57; i += 1){
  			keycodes[i] = String.fromCharCode(i);
  		}
  
  		for (i = 65; i <= 90; i += 1){
  			keycodes[i] = String.fromCharCode(i);
  		}
  
  		for (i = 0; i <= 9; i += 1){
  			keycodes[i + 96] = ['num', String(i)].join ('');
  		}
  
  		for (i = 1; i <= 12; i += 1){
  			keycodes[i + 111] = ['f', String(i)].join ('');
  		}
  	}());
  
  	fg.keyTracker = {};
  
  	// keyTracker inside a startCallback in order to have effect only after startGame
  	fg.startCallback(function () {
  		$(document).keydown(function (e) {
  			var
  				key = e.keyCode,
  				keycodes = fg.keyCodes
  			;
  
  			if (keycodes[key] !== undefined) {
  				key = keycodes[key];
  			}
  
  			fg.keyTracker[key] = true;
  		});
  
  		$(document).keyup(function (e) {
  			var
  				key = e.keyCode,
  				keycodes = fg.keyCodes
  			;
  
  			if (keycodes[key] !== undefined) {
  				key = keycodes[key];
  			}
  
  			fg.keyTracker[key] = false;
  		});
  	});
  }(jQuery, friGame));
  
  