Molecules in the test-tube

It is my latest experiment.
There are 5 files. I will post three of them.
They all are based on some interaction among particles. This one is based on repulsion.
I recommend setting quality to low. If you will wait enough system will balance it self and will look like crystal. It lead to creation of last experiments where I simulated crystal. One more that I will post is about simulation of water. It’s a pity but not successful
Oh yeah. You can drag particles.
I was planning to make few games based on those ideas but I don't have time to make them right now