lol Active culture can't exist without you having either native or adopted variants of the same culture, it will auto demolish the moment it belongs to a nation that does not have adopted or native version of it.
Not really confusing active with adopted, active culture is an extension of adopted culture, it is also an extension of Native culture, in a way active culture is the same building as both adopted and native even though adopted is different from native, it is what bridge the difference. So me setting the equal sign between how active and adopted culture behave is technically correct, as it's impossible to have the active culture of a non-native culture without also having the adopted version of it, it is also impossible to have the adopted one without having the active one of a non-native culture.
If you really wanna be able to assimilate another culture the moment you get any city from the them in any way, one and only one city required to assimilate I mean, then you just need to set all local cultures to have <iConquestProb>100</iConquestProb>
, and set all the adopted cultures to have this:
Code:
<bForceNoPrereqScaling>1</bForceNoPrereqScaling>
<PrereqAmountBuildings>
<PrereqBuilding>
<BuildingType>BUILDING_CULTURE_LOCAL_OCEANIAN</BuildingType>
<iNumBuildingNeeded>1</iNumBuildingNeeded>
</PrereqBuilding>
</PrereqAmountBuildings>