SC2Mapster

I just need a quick thought on the best approach to limiting a set of upgrades. 

I have 8 different upgrades available to a player / unit.

I want the player to be able to choose any 3 they want but after the 3rd make the rest unavailable. (so they can only choose 3)

I am thinking on how to do this in the requirements by my logical brain is not giving me the solution.

According to an online combination calculator, there are 56 possible combinations! I think that would be extremely difficult to do in requirements if even possible at all. Not to mention I would have no idea how to do it.

Could you explain it in laymen's terms? Or provide an example maybe?

So you're saying I put this settings on ALL 8 of my upgrades?

Are the count upgrade nodes below the constant or above it? Or does that matter?

EDIT: This does not work. Here is a photo showing you what I have put on all 8 upgrades. After testing multiple times on different upgrades, still does not work.

Also tried it this way after re-reading your post.... Still doesn't work...

I have officially solved this. Sorry DrSuperEvil. I believe you are mistaken. It actually requires a Sum Node, not an And node when placing all the options underneath it. But you're original idea was correct to compare the completed upgrade counts against the constant.

Thanks!

I Have posted an image of the solution for anyone else thats interested.