Need help with triggering

[Flaming]

I want to have a trigger which picks 1 random enemy unit in an area of 512 from caster and then let my caster cast a spell on it, but can I just pick a random or does it have to be enemy only?

~Flaming

 

[Blargel]

Depends on what the unit group is that your picking the random unit from. If you use pick all units within a certain area, it can be enemy, allied, your own, neutral, etc. Anything you want it to be. On the other hand, you can use pick all units owned by player in a certain area, pick all units of type in a certain area, pick all units of type owned by player in a certain area, etc. It doesn't even need to be in an area. You can pick every single one of the units matching a condition in the whole map if you wanted.

 

[frog15]

Untitled Trigger 001
    Events
        Unit - A unit Begins casting an ability
    Conditions
        (Ability being cast) Equal to <Dummy_Ability>
    Actions
        Unit - Create 1 <Dummy_Unit> for (Owner of (Triggering unit)) at (Position of (Triggering unit)) facing (Position of (Triggering unit))
        Unit - Order (Last created unit) to Human Sorceress - Polymorph (Random unit from (Units in (Region centered at (Position of (Triggering unit)) with size (1024.00, 1024.00)) matching ((Matching unit) Not equal to (Triggering unit))))
        Unit - Add a 0.50 second Generic expiration timer to (Last created unit)

 

[Flaming]

I done it myself (see picture below) but thx anyway.

http://img457.imageshack.us/img457/7466/naamloos561wh.png

Edit: oh and the thing above in the picture is the Unit Order - ... action (because its a very long one)