enum class EllipticalType {
    CIRCLE,
    ELLIPSE,
    ELLIPSE_START_90,
    ELLIPSE_START_180,
    ELLIPSE_TILT_45,
    ELLIPSE_REVERSE,
    ROUNDED_RECT
}

class EllipticalRole : ActionRole {

    @Attribute
    var type = EllipticalType.CIRCLE

    override fun createAction() : Action {
    
        return if ( type == EllipticalType.CIRCLE ) {

            Circular( actor.position, 10, 100 ).forever()

        } else if ( type == EllipticalType.ELLIPSE ) {

            Elliptical( actor.position, 15, Vector2( 70, 100 ) ).forever()

        } else if ( type == EllipticalType.ELLIPSE_REVERSE ) {

            Elliptical( actor.position, 15, Vector2( 70, 100 ) ).reverse().forever()

        } else if ( type == EllipticalType.ELLIPSE_START_90 ) {

            Elliptical( actor.position, 15, Vector2( 70, 100 ) ).start( Angle.degrees(90) ).forever()

        } else if ( type == EllipticalType.ELLIPSE_START_180 ) {

            Elliptical( actor.position, 15, Vector2( 70, 100 ) ).start( Angle.degrees(180) ).forever()

        } else if ( type == EllipticalType.ELLIPSE_TILT_45 ) {

            Elliptical( actor.position, 15, Vector2( 70, 100 ) ).tilt( Angle.degrees(45) ).forever()

        } else if ( type == EllipticalType.ROUNDED_RECT ) {
            val lengthSeconds = 1
            val cornerSeconds = 0.3
            val length = 100
            val radius = 20
            (
                MoveXBy( actor.position, lengthSeconds, length ) 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, -length ) 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)
        }

    }

}