define(function() {

	var Constants = {
		COLLISION_IDENTIFIER_PLAYER: 		     'player',
		COLLISION_IDENTIFIER_PLAYER_HEAD: 	     'head',
		COLLISION_IDENTIFIER_PLAYER_CHEST: 	     'chest',
		COLLISION_IDENTIFIER_PLAYER_LEGS: 	     'legs',
		COLLISION_IDENTIFIER_PLAYER_FOOT_SENSOR: 'footsensor',

		COLLISION_IDENTIFIER_TILE: 'tile'
	}

	return Constants;
	     
});