[1.3.1] Enlightened empires do not get capital building

[TheDarkMaster]

I just finished enlightening a primitive empire and they did not get a capital building on their homeworld. In fact, five years later they haven't built a reassembled ship shelter, preventing them from building most buildings. Due to migration they're currently starving. I had to tag switch to them to get them to build the capital.

The species had 3 POPs when I enlightened them and were originally in the renaissance era.

 

[Peter Ebbesen]

Providing one or more saves for this report might help.

 

[TheDarkMaster]

Providing one or more saves for this report might help.

I don't have a save from when I enlightened them, only after I'd done the tag switching and made them build the buildings.

 

[Risa]

Some time this happened, some time it didn't.
I had one game enlightening an iron-age arctic civilization (3 Pop). it didn't recieve capitol building. Though there were only 6 tiles not blocked by tile blockers on that planet, so that might be a factor.
In another game, I enlightened one atomic-age desert civilization and two early-space-age civilizations (earth and a random desert civilization). They all recieve capitol building and behaved correctly. All there had plenty free tiles.

I checked event that fires on enlightenment completion, it does not have anything about adding buildings, comparing to event that fires on infiltration completion, which does. So I don't know what else happens on enlightenment completion and what causes the bug. Is it due to medieval vs. industrial age difference? Or is it somehow connected to free tiles available?

 

[Risa]

I think I pinpoint the cause of problem.

Enlightenment completion event (observation.2000) itself is fine. It uses primitive entering space age event (primitive.16) to take care of setting up buildings. It is there things go wrong.
In primitive.16,

   random_tile = {
    limit = {
     has_grown_pop = yes
     num_adjacent_tiles > 3
    }
    set_building = "building_capital_2"
   }

If all pops are on edge tiles, that code fails.

A quick dirty fix is changing that "> 3" to "> 2". It can still fail if all pops are at corner tiles, but that's far less likely to happen.

 

[TheDarkMaster]

...

Alternatively, start by clearing a flag, then have it be set when it places the building. If that flag isn't set afterwards, a fail case triggers that puts the building wherever.