Variable costs depending on number of picks.

[EightBitz]

I'm trying to work through an issue with a set of picks where each additional pick has a higher cost than the previous one.

The first pick costs 4 points, then each additional pick costs an extra 2 points, cumulatively. So pick1 costs 4 points, pick2 costs 6 points, pick3 costs 8 points, etc.

I tried to get clever with the following bit of scripting, but it didn't work as intended.

~adjust the resource appropriately
      var schcount as number
      var cost as number
      foreach pick in hero where "component.School"
      	schcount += 1
      	nexteach
      cost=2+(schcount*2)
      hero.child[resCP].field[resSpent].value += cost

Instead of increasing the cost for each successive pick, in increased the cost for each existing pick as well. Pick1 would cost 4 points, but if I added a second pick, they would cost 6 points each. And if I added a third, they would cost 8 points each.

In retrospect, this behavior makes sense. It still leaves me confused, though, as to how to make this work.