I like that one Vokarya! But I can't say I've figured out what 'special building' is all about yet...
Take a look at caveman2cosmos\Assets\XML\Buildings\CIV4SpecialBuildingInfos.xml. You can assign a building a SpecialBuildingType tag. At the moment, I think we are only using it for:
- Grouping religious buildings together by class (Temple, Monastery, Pantheon, Cathedral)
- Temples getting double production speed from Spiritual leaders
- Civics that bypass the Monastery/Corporation requirement for training Missionaries/Executives
- Buildings that anyone can build after a Project is completed (Bomb Shelter, Deep Space Research Lab, Space Laboratory, Cloning Laboratory, Fusion Power Plant, World Bank)
I think that's all for now, but with the right additional XML tags, we could do more (adapting the various building tags to special building types). One thing we could do is group buildings together to save Civilopedia text space, so for example the Civilopedia could just say Can build a Grain Farm or Can build a Mushroom Farm instead of having to list every single one of them by name.