IsHasBuilding

Description

Returns true if a subject [Lua Game Objects/City|city] has a building with a specified ID

Example

(from Culture per Population mod)

 -- add culture when wonder completed
 function CulturePerPop(iPlayer)
   local buildingID, buildingTime;
   local player = Players[iPlayer];
   if IsValidPlayer(player) then
     for pCity in player:Cities() do
       for row in GameInfo.Building_CultureChangePerPop() do
         -- has wonder?
         buildingID = GameInfo.Buildings[row.BuildingType].ID;
         if pCity:IsHasBuilding(buildingID) then
           -- just built?
           buildingTime = pCity:GetBuildingOriginalTime(buildingID);
           if buildingTime == Game:GetGameTurnYear() then
             pCity:ChangeJONSCulturePerTurnFromBuildings(
               math.floor(pCity:GetPopulation() / row.Pop * row.Culture));
           end
         end
       end
     end
   end
 end