interface Switchable : Role {
    fun switch(value: bool)
}

class Switch : AbstractRole(), ContactListenerRole {

    @Attribute
    var on: bool = true

    @Attribute
    var controls: String = ""

    override fun activated() {
        super.activated()
        update( on )
    }

    override fun tick() {
    }

    override fun beginContact(contact: Contact, otherActor: Actor) {
        val otherRole = otherActor.role
        if (otherRole is DollPart) {
            update( !on )
        }
    }

    fun update( state : bool ) {
        on = state
        actor.event(if (on) "on" else "off")
        for( switchable in actor.stage.findRolesByClass<Switchable>(Switchable) ) {
            if (switchable.actor.name == controls) {
                switchable.switch(on)
            }
        }

    }

    override fun endContact(contact: Contact, otherActor: Actor) {}
}