I'm making a defense map, and I wanted to make it so units, if they can't make it though, will attack, but only if they can't make it though, as to prevent walling. I tried Order(move) but it doesn't seem to want to attack. I'm using Civs to block, so that might make a difference. Is there an AI Script I can enable that'll cause that, or am I doomed to have to make a vote-unwall?

As far as I know, any AI script would just make the computer attack in that situation without trying to move through first.

I would create a location on the other side of the wall, and if the computer doesn't bring any units to that location by a set amount of time after the defense round begins, then order them to attack to whatever the goal is.

Another way to do it is to create a location in front of the wall where they bunch up when blocked. Have a trigger that orders the computer to attack if there are a certain number of computer units in that location.

If you need to, you can always re-issue the move order to stop them from attacking again.

I made a concept map with a wall-checking system, but it'd only work for unit defenses since it needs a burrowed unit/spider mines grid and you wouldn't be able to build over them

EDIT: Actually I uploaded it to the DLDB:
http://www.staredit.net/files/431/

Post has been edited 1 time(s), last time on May 25 2008, 1:42 pm by Clokr_.

How would you know where the player builds his wall?

Same problem as above. How would you know where to look for bunched up units?
Also bunching up is not necessarily a sign of a wall. There are certain build styles that make the comp run into a dead end first and then turn so the units block each other and need much longer to pass your defense.

A cheesy but pretty reliable way is to send an invincible quick ground units along the path and start the level only until all runners have finished. This method works best with immobile defenders.
Ahli did that in a defense map of his. I think it's called SC Maul.

The DLDB doesn't allow me to update the map version, so I attach here v1.1. I made some copies of 3 triggers and now it works 10x faster

Attachments:

I believe most defense maps use the "Move" order, as it attempts to move through and then if it cannot after a while it decides to attack. There are ways to trick it into thinking it can still move, but that's the tried-and-true method.

I was assuming that the walls were pre-placed. The runner method sounds like a good one for a map where players build their own walls.

preplaced walls? wtf? Which map maker would screw his own def map by preplacing unpassable walls?
Do you mean preplaced chokes where it's likely the player's block the path?