enum class EllipticalArcByType {
    ROUNDED_RECT
}

class EllipticalArcByRole : ActionRole {

    @Attribute
    var type = EllipticalArcByType.ROUNDED_RECT

    override fun createAction() : Action {
    
        return if ( type == EllipticalArcByType.ROUNDED_RECT ) {

            val lengthSeconds = 1
            val cornerSeconds = 0.3
            val length = 100
            val radius = 20
            (
                MoveXBy( actor.position, lengthSeconds*2, length*2 ) then
                CircularArcBy( actor.position, cornerSeconds, Vector2(radius,radius), radius, false, true ) then
                MoveYBy( actor.position, lengthSeconds, length ) then
                CircularArcBy( actor.position, cornerSeconds, Vector2(-radius,radius), radius, false, true ) then
                MoveXBy( actor.position, lengthSeconds*2, -length*2 ) then
                CircularArcBy( actor.position, cornerSeconds, Vector2(-radius,-radius), radius, false, true ) then        
                MoveYBy( actor.position, lengthSeconds, -length ) then
                CircularArcBy( actor.position, cornerSeconds, Vector2(radius,-radius), radius, false, true )
            ).forever()
        } else {
            Delay(1)
        }

    }

}