Help with Trigger Expressions

[ChaosChronicle]

I'm looking to randomize a particular variable between different strings (so it returns one of the units I ask for). Problem is I don't know how the Expression part of a trigger works and I *think* it's what I need to use.
Basically I just want to do Set <Variable> to <X or Y or Z>
Is that possible?

 

[hopy]

Basicly what you'll need to do is the following:
Add every "Option" to an array, and than choose a random array number. As an example, if you're supposed to choose a Marine, Zergling or Zealot, it'll require the following (don't have the editor open, so I'm doing this from my head - using W3 trigger knowlage):

• Actions
  • Set RandomUnit[0] = Marine
  • Set RandomUnit[1] = Zergling
  • Set RandomUnit[2] = Zealot
  • Set RandomNumber = (Random Integer between 0 and 2)
  • Unit - Create 1 RandomUnit[RandomNumber] for (player 1) at Point facing (Standard facing direction)

Something like that.

RandomUnit is a Unit type array, RandomNumber is an Integer Variable. The random integer part is written a bit different in the actual trigger editor, like I said, I'm doing this from my head.

 

[ChaosChronicle]

Thanks a ton hopy, this was just what I needed

 

[hopy]

Most welcome. Glad I could help someone in the SC2 section. Triggering is still pretty much the same though.