 
     # Return true if this element intersects with the other
     # element, false otherwise.
-    #
-    # @param other {Object} the other element
-    # @return {Boolean}
     intersects : (other) ->
         bb = this.getAxisAlignedBoundingBox()
         ob = other.getAxisAlignedBoundingBox()

        return ii(ty, oy) and ii(ox, tx)

    # Return the element's inverse mass.
    #
    # @return {Number}
    getInverseMass : () ->
        return 1/@mass


        return this

    # Return the element's velocity.
    getVelocity : () ->
        return @direction.normalize().scale(@speed)

