Actions of Actors in libgdx

Question

I have made my Actor, but I am unclear on how to take advantage of the action and act methods. Outside of the basic Javadoc, I have not found a go

Answer 1

You should give Universal Tween Engine a try. It's easy to use and really powerful... and it makes reading complex animations a walk in the park because all commands can be chained. See examples bellow.

Steps:

1. Download the library from here
2. Create an accesor class. You can save the time and grab the one I was using from here.
3. In your Game class declare the TweenManager

    public static TweenManager tweenManager;

In the create method:

    tweenManager = new TweenManager();

In the render method:

    tweenManager.update(Gdx.graphics.getDeltaTime());

4. Use it however you want. Ex.

Move actor to position (100, 200) in 1.5 seconds with elastic interpolation:

Tween.to(actor, ActorAccesor.POSITION_XY, 1.5f)
     .target(100, 200)
     .ease(Elastic.INOUT)
     .start(tweenManager);

Create a complex sequence of animations:

Timeline.createSequence()
    // First, set all objects to their initial positions
    .push(Tween.set(...))
    .push(Tween.set(...))
    .push(Tween.set(...))

    // Wait 1s
    .pushPause(1.0f)

    // Move the objects around, one after the other
    .push(Tween.to(...))
    .push(Tween.to(...))
    .push(Tween.to(...))

    // Then, move the objects around at the same time
    .beginParallel()
        .push(Tween.to(...))
        .push(Tween.to(...))
        .push(Tween.to(...))
    .end()

    // And repeat the whole sequence 2 times
    .repeatYoyo(2, 0.5f)

    // Let's go!
    .start(tweenManager);

More details here

UPDATE: replaced dead link