Editing City Building (section)

== Choosing What to Build ==
How does a city decide what building to construct next? First it needs to determine which buildings it can build. In order for a building to be possible, it must satisfy the following requirements:

* '''Tech requirements''' - the city's culture must have unlocked relevant [[Culture Development|technology]] 
* '''Zone requirements''' - barracks and temples can only be built when the city has a minimum of 20 zones. Other buildings have no zone requirements. 
* '''Building limits''' - 
** Each city can build at most 1 [[bonfire]] / windmill / [[Statues|statue]] / [[well]] / mine / barracks.
** Each city can build at most 5 [[docks]]. 
** Each city has a limit to the number of [[Watch Tower|watch towers]], which is affected by several factors.
* '''Population requirements''' - most buildings can only be built when the city reaches a certain population .
* '''Existing buildings -''' some buildings require the city to have a number of buildings before being constructed.
* '''Preexisting building requirements''' - many buildings require some other buildling to be present before being constructed. This ensures an orderly sequence of construction from lower-level to higher-level buildings. 
* '''Resource requirements''' - the city's storage must have sufficient resources to construct the building. 

The city randomly selects among these possible buildings to build next - note that this can be a new construction, or an upgrade from an existing building