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Archive for December, 2009

TweenMax – Tweening a timeline (Advanced Tweening)

Friday, December 18th, 2009 | ActionScript 3, examples | Comments

It’s been a really busy week doing a lot of interactive motion work, so no time to work on my Theme Designer, but here’s a little trick I picked up this past week from Jack. Tweening a timeline allows you to create multiple tweens and then apply one ease to the whole group. Neat trick, eh?

package  
{
    import com.greensock.TimelineMax;
    import com.greensock.TweenMax;
    import com.greensock.easing.Linear;
    import com.greensock.easing.Quart;
 
    import flash.display.Sprite;
 
    /**
     * @author John Lindquist
     */
    [SWF(width="900", height="480", frameRate="31")]
    public class EasingATimeline extends Sprite 
    {
        private var square:Sprite;
        private static const STEP_DURATION:Number = 1;
 
        public function EasingATimeline()
        {
            square = new Sprite();	
            square.graphics.beginFill(0xcc0000);
            square.graphics.drawRect(0, 0, 50, 50);
            square.graphics.endFill();
 
            square.x = 100;
            square.y = 50;
 
            addChild(square);
 
            //set all the eases of your steps to Linear.easeNone
            var step1:TweenMax = TweenMax.to(square, STEP_DURATION, {x: 700, y: 50, ease: Linear.easeNone});
            var step2:TweenMax = TweenMax.to(square, STEP_DURATION, {x: 700, y: 350, ease: Linear.easeNone});
            var step3:TweenMax = TweenMax.to(square, STEP_DURATION, {x: 100, y: 350, ease: Linear.easeNone});
            var step4:TweenMax = TweenMax.to(square, STEP_DURATION, {x: 100, y: 50, ease: Linear.easeNone});
 
            var timeline:TimelineMax = new TimelineMax();
            timeline.append(step1);
            timeline.append(step2);
            timeline.append(step3);
            timeline.append(step4);
            //pause your timeline
            timeline.pause();
 
            //tween your timeline with whatever ease you want
            TweenMax.to(timeline, timeline.totalDuration, {currentTime: timeline.totalDuration, ease: Quart.easeInOut, repeat: -1});
        }
    }
}

Tags: tweenmax

Robotlegs + Flight + Union Platform

Saturday, December 12th, 2009 | ActionScript 3, examples | Comments

So, I was distracted from finishing my FDT theme generator by a discussion on the Robotlegs mailing list suggesting the possibility of merging Robotlegs with Flight. It sounded like an interesting challenge, so the above chat room is my initial attempt at it. Go ahead and click the “Connect” button to try it out!

The full source code is here:
http://github.com/johnlindquist/flight-demos/tree/master/FlightAndRobotLegsUnion/ (if you’re not familiar with git, there’s a download button on that page which will download all the source. It’s an FDT project, so you’ll have to fiddle with it a bit to get it set up in whatever environment you’re using)

I’m considering making a beast of a tutorial (probably around a half hour) explaining how this all links together, but I have to finish my FDT Theme generator first!

Huge thanks to the Union Platform for providing the test chat service that doesn’t require an API key!