QUOTE(CheeZe @ Jul 17 2005, 07:30 PM)
It's pretty simple. Just continuesly create a unit and removing the unit onto a location (smaller than 1x1) that is centered on the unit that can be burrowed.
Remove the unit being created if that unit is not within the location. Actually, remove it if it is in the location, but if it is, then the unit is burrowed.
[right][snapback]264469[/snapback][/right]
Yes you do have time to do it, let me break apart Cheeze's post to help you out:
Trigger #1:
Always
Move .5 x .5 location on Zergling (say we're using a zergling)
Create Ultralisk or Move unit to .5 x .5 location.
Trigger #2
Bring at least 1 Ultralisk to .5 x .5
Remove all Ultralisk at .5 x .5
Actions that happen if ling is burrowed
Trigger #3
Bring exactly 0 Ultralisk to .5 x .5
Remove all Ultralisk
Actions that happen if ling isn't burrowed
Since all three triggers are setup like this, you never see the ultralisk and it checks instantly. I haven't done this trigger with create/remove but I do know that move/moveback will work perfectly without seeing the unit.