Unit type within range of unit type

[Sinroth]

Hey, I'm just making a small scenario for fun, and can't seem to be able to get an action to happen off a certain unit type being within range of another unit type. The example in question is that I want a building to be un-buildable within a certain range of itself, so the player will have to spread that building out. Any ideas? Will I have to use Variables? Thanks in advance.

EDIT: Sorry, I just realised that I'm supposed to post this in Triggers & Scripts, so if someone could please move this to the appropriate sub-forum, that'd be great.

 

[WhitePhoenix]

You'd be better off detecting a buildings construction, then finding all the units matching condition within range of the constructed unit, and removing the constructed unit/refunding the player when you find what you're looking for in the condition.

 

[Berb]

Well you're probably wanting the "Unit begins constructing a unit" event. From here you can check whether or not there are any units in an X radius of the same type and allow the unit to build the structure (leave him be) or disallow it (order him to stop, display message to user).

 

[Sinroth]

Cool, thanks guys.