[Solved] Check if distance between 2 units is empty?

[stan0033]

Any ideas what triggering/jass to use to check if there are no other units between unit 1 and unit 2?

 

[Chaosy]

You could use the same method as triggering a knockback, except quicker.

In GUI there is a position function which goes something like:
position x offset by y in direction z

So you'd do

set dist = distance between unit 1 and unit 2
set ang = angle between unit 1 and unit 2
Loop 1-dist

set p = position of unit1 offset by 1 * integer a/b in direction ang
set g = unit group, units in 32 range of p
if g is not empty

unit found
​

Loop duration is not optimal in terms of performance, but you can tweak that after you got a base working

 

[Uncle]

Adding to what Chaosy said, you could use something like this: Line Segment Enumeration .v2.1a

This system is great because all you need to do is define Point A (Pos of Unit A) and Point B (Pos of Unit B) and the Width. Then from there the system will add all of the found units to a Unit Group.

Then you want to create a Boolean "FoundUnit" and set it to False before you loop through the Unit Group. After that you would check each Picked unit in the Unit Group -> If picked unit is NOT equal to Unit A or Unit B then set FoundUnit = True. You'd probably want to filter out dead units and other stuff as well.

After the Pick every unit function you check the state of FoundUnit. If it's still False then you didn't find any units between Unit A and Unit B and can proceed to do whatever it is that you wanted to do.