3-way collision makes black line appear

Hello - I have a situation…
I’m making an info-animation piece, and it involves 3 random moving circles that when all 3 touch eachother, a black line will connect all 3 at their centerpoint, and this black line will disappear when they move away from eachother. Has anyone the code or suggestions for an actionscript like this?
Any help is greatly, greatly appreciated.
Cheers,
future-pilot

Run a search for node garden or something along those lines. :stuck_out_tongue:

i have some code for the collision detection, i will post, but i have one question first, will all of the circles be the same size?