Animation nodes -Proximity node

Hello, first time I post here for a question, so I don’t know if here is the right place.

I’m trying to achieve a animation with animation nodes, here is the most near I have found as a tutorial (https://www.youtube.com/watch?v=xfXUGdyICHg)

But the nodes in the video are no more avalailable in animation nodes for 2.79 or I haven’t found them.

Does anybody know about a tutorial about this kind of animation?

I’ll be grateful with any help !!!

Thank you. :slight_smile: