Trigger problem; how to recognize targets?

[Ramza]

So I got this trigger:

• Combustion
  • Events
    • Unit - A unit Dies
  • Conditions
    • (Unit-type of (Dying unit)) Equal to Combustion Dummy
  • Actions
    • If (All Conditions are True) then do (Then Actions) else do (Else Actions)
      • If - Conditions
        • (Level of Combustion (Pyromancer) for Pyromancer) Equal to 1
      • Then - Actions
        • Unit Group - Pick every unit in (Random 3 units from (Units within 650.00 of (Position of (Dying unit)))) and do (Actions)
          • Loop - Actions
            • Unit - Create 1 Fire Chain Dummy for (Owner of Pyromancer) at (Position of (Dying unit)) facing Default building facing degrees
            • Unit - Order (Last created unit) to Orc Far Seer - Chain Lightning (Picked unit)
      • Else - Actions
        • Do nothing

How do I make sure those dummy units won't cast their spell on the same target?

 

[Dr. Boom]

Moin moin =)

First of all you can create a unit group variable. Then you create the trigger and make a loop from 1 to 3.
Then you pick random 1 unit with the condition, if the unit is in the unitgroup equal to false then do xxx.
After do xxx you add the action "unit at x to unitgroup"

After the loop you remove every unit from the group and clear the group.

Edit: I hope I write the trigger correct here (don't have wc3 installed for now)

• TestTrigger
  • Events
  • Conditions
  • Actions
    • Set TempLoc = (Position of (Triggering unit))
      • For each (Integer A) from 1 to 3, do (Actions)
        • Loop - Actions
          • Custom script: set bj_wantDestroyGroup = true
          • Unit Group - Pick every unit in (Random 1 units from (Units within 650.00 of TempLoc)) and do (Actions)
            • Loop - Actions
              • If (All Conditions are True) then do (Then Actions) else do (Else Actions)
                • If - Conditions
                  • ((Picked unit) is in TempGroup) Equal to (==) False
                • Then - Actions
                  • Unit Group - Add (Picked unit) to TempGroup
                  • -------- Do other actions here --------
                • Else - Actions
          • Unit Group - Pick every unit in TempGroup and do (Actions)
            • Loop - Actions
              • Unit Group - Remove (Picked unit) from TempGroup
              • Custom script: call DestroyGroup(udg_TempGroup)
    • Custom script: call RemoveLocation(udg_TempPoint)

Greetings
~ The Bomb King > Dr. Boom

 

[Ramza]

The trigger makes sense, but somehow only one dummy casts its spell.

Can you see why? Maybe I have to put a ''x Real(Integer A)'' function in there somewhere?

Edit: Without the condition it always casts 3 chains.