 				y: @_lockDirectionEnabledY
 
 			# @_propagateEvents = false if @multipleDraggables
-
 
 	_resetLockDirection: ->
 		@_lockDirectionEnabledX = false

	@define "vertical", @simpleProperty "vertical", true, true

	@define "momentumVelocityMultiplier", @simpleProperty "momentumVelocityMultiplier", 800, true, _.isNumber

	@define "constraints",
		get: -> @_constraints


	_calculateConstraints: (bounds) ->

		if not bounds
			return constraints = 
				minX: Infinity
				maxX: Infinity
				minY: Infinity
				maxY: Infinity

		constraints = 
			minX: Utils.frameGetMinX(bounds)
			maxX: Utils.frameGetMaxX(bounds)
