OK...
Go through each tile in the BFC. If you don't know each tiles food value of by heart, then activate the button that allows you to see all the outputs of a tile. Assume all resources have the appropiate improvements (IE. Corn has a farm, and Iron has a mine)
Now, subtract 2 from EACH TILE that can be mined/harvested (IE. Everything but non-riverside deserts, and mountains). Then add all the numbers up. Then multiply by -1 (if its negative, make it positive, and vice versa)
So, lets assume you have the following tiles:
Plains / Plains / Plains+Hills
Grassland / Floodplains / Desert / Desert / Mountain
Grassland / Floodplains / City / Plains / Grassland + Corn
Grassland / Grassland + Hills + Iron / Plains / Plains / Plains + Hills
Grassland / Grassland / Grassland
OK... so, remembering that Corn has a farm (producing 6 (?)
, while not riverside), we count:
-1 / -1 / -2
0 / 1 / - / - / -
0 / 1 / 0 / -1 / 4
0 / -1 / -1 / -1 / -2
0 / 0 / 0
Adding those all together, you get the value of: -4. This means that you need 4 farms (NOT including the one on the corn, unless it's riverside, or can be connected with other farms after Civil Service).
A couple of things to remember. If you are coastal (your city is besides a coast tile. Make sure its coast, and not fresh water), all water tiles produce 2
, not 1, as given in the display. Also, remember to add improvements. A couple of difficult ones are sugar (+1
with plantation, not extra
, like most plantations), and wine (+1
with winery). Finally, if you have a resource that requires a farm, and its NOT riverside, and you aren't planning to irrigate it with civil service later on, it doesn't count as a farm to the final total.
Right, with that over and done with, where do you place farms?
I normally (if I am building any cottages), build 1 on a low-food tile (like plains / riverside Tundra), and farm 1 high-food tile (like floodplains). This means you can micro-manage your city EASILY to avoid growth wherever possible, without wasting food with the 'avoid growth' option. Otherwise, all high-food tiles are cottaged (in order to develop the cottages quickly. The low food cottage is almost never used, unless I hit the
cap), and all low food tiles are farmed.
I'm a Noble player. I am confident enough to say that I am an AVERAGE noble player, or maybe just below average, but not a terrible noble player. Not anymore, anyway.