LibGDX is there an actor that is animated?

Question

In LibGDX Is there an actor that is animated (takes an Animation) and when added to a Stage animates itself or do you have to implement your own Image class in and animate it yourself?

Answer 1

Just like you I didn't find animated Actor so I created myself:

AnimatedActor.java:

public class AnimatedActor extends Image
{
    private final AnimationDrawable drawable;

    public AnimatedActor(AnimationDrawable drawable)
    {
        super(drawable);
        this.drawable = drawable;
    }

    @Override
    public void act(float delta)
    {
        drawable.act(delta);
        super.act(delta);
    }
}

AnimationDrawable.java:

class AnimationDrawable extends BaseDrawable
{
    public final Animation anim;    
    private float stateTime = 0;

    public AnimationDrawable(Animation anim)
    {
        this.anim = anim;
        setMinWidth(anim.getKeyFrameAt(0).getRegionWidth());
        setMinHeight(anim.getKeyFrameAt(0).getRegionHeight());
    }

    public void act(float delta)
    {
        stateTime += delta;
    }

    public void reset()
    {
        stateTime = 0;
    }

    @Override
    public void draw(SpriteBatch batch, float x, float y, float width, float height)
    {
        batch.draw(anim.getKeyFrame(stateTime), x, y, width, height);
    }
}