Algodoo

Seems seamless. I am surprised that you can get such smooth action with just 6 images. I can control the speed of the train with the frequency slider.

Thanks, s_noonan.

How it stop moving,your title is “Infinity train”

It doesn't stop. It keeps moving forever. That's why it's called "Infinity Train".

Wait.. You can use GIFS in Algodoo??!!!

Yes. You can use gif, png, and Jpg images.

How? It doesn’t work when I import it. Do I need to do scripting to make it animated or is this an iOS issue

Q: Do I need to do scripting to make it animated?
A: Yes.

Star80 -- What do you mean by "import it"? What is "it"?

I have no idea how can you do it, I'm confused

Algo-john1234 -- If you zoom the scene way out, you will see a stack of images below the main image. Those are the individual frames that get cycled one-at-a-time in the main image. If you slow down the cycle rate by reducing the simulation speed (a slider just above the Pause/Start button) you will see each frame cycling from one to another. After the last frame has been shown, the cycle then starts over again by displaying the first frame. The switch from the last frame to the first frame is nearly seamless so that it looks like a continuous motion of the train. This is how movies were made during the last century when all they had was movie film (no digital electronics like they now have).

I hope this explanation made you less confused!

Thank you so much!!!