abstract class AnimatedButton : Button() {

    @Attribute
    var showInSeconds = 1.0

    @Attribute
    var duration = 1.0


    override fun activated() {
        super.activated()
        if (duration != 0) {
            // Hide it. Move it below the bottom of the screen.
            actor.y -= actor.stage.firstView().worldHeight
            actor.scaleXY = 0.1
        }
    }


    override fun createAction() : Action {
        return if ( duration == 0 ) {
            null
        } else {
            val animation =
                MoveBy( actor.position, duration, Vector2(0, actor.stage.firstView().worldHeight), Eases.easeOut ) and
                ScaleTo( actor, duration, 1 )
    
            Delay( showInSeconds ) then( animation ) then EventAction(actor,"ding") 
        }
    }

}



class ChapterButton : AnimatedButton() {

    @Attribute
    var chapter = 1

    override fun onClicked(event: MouseEvent) {
        HiggsAnomaly.instance.chapter = chapter
        startScene("chapter$chapter/1")
    }
}


class AnimatedSceneButton : AnimatedButton() {

    @Attribute( isSceneName=true )
    var scene = ""

    override fun onClicked( event : MouseEvent ) {
        startScene( scene )
    }

}