class GateLocal : Item {

    @Attribute
    var gatePair = ""
    
    override fun collectable() = true

    override fun invading( movement : Movement ) {

        val player = movement.item
        val seconds = 1.0
        val spins = 3

        replaceAction(
            (
                // Tumble the player into this gate
                ScaleTo( player.actor, seconds, 0.1, Eases.easeOut ) and
                TurnBy( player.actor.direction, seconds, Angle.degrees( 360 * spins ), Eases.easeIn ) and
                Fade( player.actor.color, seconds, 0, Eases.easeInQuad )

            ) thenOnce this:>postTumble.curry( player )  then
            (
                // Tumble the player out of the other gate.
                ScaleTo( player.actor, seconds, 1.0, Eases.easeIn ) and
                TurnBy( player.actor.direction, seconds, Angle.degrees( 360 * spins ), Eases.easeOut ) and
                Fade( player.actor.color, seconds, 1.0, Eases.easeOutQuad )
            ) thenOnce this:>postTumble2.curry( player )
        )

    }

    fun postTumble( item : Item ) {
        val others = PlayDirector.instance.mainStage.findRolesByClass<GateLocal>( GateLocal )
        for ( other in others ) {
            if ( other != this && other.gatePair == gatePair ) {
                item.warpTo( other.square )
                return
            }
        }
    }
    fun postTumble2( item : Item ) {
        item.replaceAction( item.createAction() )
    }

    override fun invaded( movement : Movement ) : boolean {
        movement.item.replaceAction( null )
        return false
    }

}