class Empty : Item {

    static var instance = Empty()

    override fun isMoving() = false

    override fun isEmpty() = true

    override fun isOutside() = false

    override fun isPlayer() = false

    override fun squashable( direction : int) = true

    override fun rounded( direction : int ) = false

    override fun canPush( direction : int, speed : int, strength : int ) = false

    override fun collectable() = false

    override fun toString() = "Empty"

}