class Star : ActionRole {

    static fun createRing( around : Actor ) {
        Star.createRing( around, "star" )
    }

    static fun createRing( around : Actor, costumeName : String ) {

        val mainStage =  Game.instance.scene.findStage( "main" )
        val aroundRect = around.appearance.worldRect()
        val radius = Math.max( aroundRect.width, aroundRect.height )
        val position = Vector2( (aroundRect.left + aroundRect.right)/2, (aroundRect.bottom + aroundRect.top)/2 )

        val starCostume = Game.instance.resources.costumes.find( costumeName )
        for ( a in 1..10 ) {
            val star = starCostume.createActor()
            star.position.set( position )
            (star.role as Star).replaceAction(
                ForwardsBy( star.position, 2, radius, Angle.degrees( a * 36), Eases.easeOut ) and
                ScaleTo( star, 2, 2 ) and
                TurnBy( star.direction, 2, Angle.degrees(360) ) and
                Fade( star.color, 2, 0 )
            )
            mainStage.add( star )
        }

    }

}