GroovyFX timeline sample

annularEclipse.groovy

@Grab('org.codehaus.groovyfx:groovyfx:0.2')
import static groovyx.javafx.GroovyFX.start

start {
  stage(visible: true) {
    scene(width: 400, height: 400, fill: black) {
      circle(centerX: 200, centerY: 200, radius: 110, fill: yellow) {
        effect dropShadow(color: white, radius: 50)
      }
      moon = circle(centerX: 400, centerY: 0, radius: 100, fill: black)
    }
  }

  eclipse = timeline {
    at (60.s) {
      change (moon, 'centerX') { to 0 } 
      change (moon, 'centerY') { to 400 } 
    }
  }
  eclipse.play()
}