I have a mercenary camp that sells ogres. But i want that if a player doesn't have the "ogre" upgrade researched to not be able to buy ogres from the mercenary camp (same as knights can't be trained if a castle is not upgraded for example).
I tried adding the "ogre" research to the Techtree - Requirements in the ogre unit panel but that only works if the unit is trained, not sold.
How to do this?
I tried adding the "ogre" research to the Techtree - Requirements in the ogre unit panel but that only works if the unit is trained, not sold.
How to do this?