Create rectangle loops and "infinty" shapes like color switch ?

I have tried several methods but none of them seemed to work, I want objects to move on a rectangle loop or a an infinity shape loop
Exactly like this

 

use logic path i think its going to work make it loop in path settings

 

Alread tried that but didn't seem to work like color switch, can u please provide me a video or picture explaining that I would be more than grateful
thank uuuu