activate a trigger when unit group = 0

[MissKerrigan]

Hello,

I did this before but I forgotten! (omg)

I want to activate a trigger when a unit group goes empty
Can someone clear me up?


MissKerrigan

 

[X-maul]

If you got a trigger that adds the units, you can just add a wait function that checks for the condition if the amount of living units in unit group = 0

Othervise you could have a periodic trigger, that will run every 1 second, and then set the condition to amount of living units in unit group = 0.
Then remember to turn off the trigger when it activates, and reactivate it in the end.

 

[MissKerrigan]

the problem is that I can't find any event that tells me 'Unit Group goes empty'

 

[X-maul]

Did you read my reply? There is no such event.
You will have to settle with a trigger that got a wait for condition action, or a periodic trigger that checks if the unit group is empty.

Personally I'd use the wait, as it's most likely something that checks when all units of a group of units you spawned, are dead. If thats the case, just add the wait right after you spawned them, and then you put your actions after the wait (or run another trigger after it)

 

[MissKerrigan]

alright I get it now! I searched over and over in the events, but it seems it wasnt there haha!

 

[Dave312]

I personally would use the Unit Dies event and add another condition which checks if the unit belongs to the unit group.

 

[MissKerrigan]

very smart, but what if the unit will be removed from the game by trigger?

 

[X-maul]

Then nothing will happen, but if it's an action that would happen after some units are spawned, I'd use a wait with a condition, as that will be the simplest and most efficient.

But if you are not removing any units, but instead killing them, you can use Dave312's method for the same result.

 

[MissKerrigan]

Alright, if the last unit of the unit group is removed, you must be game over, is this so hard?

I JUST want make a trigger:


1. UNIT GROUP LIVES is '0'

2. END GAME for player


is this impossible?

 

[X-maul]

Make a periodic trigger that runs every 1 sec, with a condition that checks if the unit group is empty, then end game for player if it is.

 

[MissKerrigan]

thx X-Maul, it works now