Great Wall location

Does anyone know how the computer picks the location, and extent, of the Great Wall? I figured it would be for any cities where the grid squares under control were connected, but no. Some times it leaves out a city, but only surrounds some land directly next to it, even if all the cities land under control were connected. Seems like there is no logic to it.

Thanks.

It takes the tiles that the city it's built in owns. The maximum is a ring of 5 around that, but it'll follow that city's borders. Once built, saving + reloading will "relocate" the wall to the latest expansion, but without that, it'll stick to the size of the borders the moment it was built.

A couple of times it did that, but left out one of the cities - really weird.

Loucypher said:

It takes the tiles that the city it's built in owns. The maximum is a ring of 5 around that, but it'll follow that city's borders. Once built, saving + reloading will "relocate" the wall to the latest expansion, but without that, it'll stick to the size of the borders the moment it was built.

Click to expand...

Ah, the *city's borders*, not the borders of the whole civ.
Didn't the Great Wall encircle the civ's cultural borders, at the time it was built?
Was that back in vanilla, or has it been changed in a recent patch?

vorlon_mi said:

Ah, the *city's borders*, not the borders of the whole civ.
Didn't the Great Wall encircle the civ's cultural borders, at the time it was built?
Was that back in vanilla, or has it been changed in a recent patch?

Click to expand...

I never seen it being built in a way that it encloses the entire civ unless you're still really small or such. It really only follows the borders of the one city that built it. If there are other cities within its 5-tile-ring, it might encircle those as well, but not that city's borders - just whatever is within the first city's sphere of influence.

Great Wall encompasses all of the civ's borders (not just the city) as long as they are linked, meaning no land gaps between city's. And water territory doesn't count as linkage.

It is NOT just the city in which it is built:

"Enemy land Units must expend 1 extra movement per Tile inside your territory. The wall encompasses all of the territory that the civilization that has built it, as long as it is linked. It cannot be built once another civilization has built it."

Right, the graphic is just for show. The effect is anywhere within the Great Wall owner's cultural border.