2 Points for consideration

[Kull]

Why hasn't anyone thought of this earlier? With a bit more sophisticated code we could link upkeep to the fleets' distance from nearest docks, at least up to a certain level.

Keep in mind that the AI will never associate naval cost with distance from docks. But there may be a plus/minus for each side:

Human: Knows about the cost/distance link, and so makes an effort to keep fleets as close to home ports as possible. This encourages behaviour that mirrors history, which is good. The AI will not be able to do likewise, so advantage Human.

AI: Unlike the AI, the human player is often prone to send fleets off on great voyages of exploration. In the past there was no reason not to - the cost of maintaining a Pontic fleet off the cost of Norway was the same as being in the Black Sea. Well, no longer. And since the AI typically doesn't launch long range naval explorations, advantage AI.

In sum, this idea would seem to make the game more realistic, and wouldn't unduly penalize one side over the other.

[Spitful]

You could have it only effect the players faction

[Dooz]

Keep in mind that the AI will never associate naval cost with distance from docks. But there may be a plus/minus for each side:

Human: Knows about the cost/distance link, and so makes an effort to keep fleets as close to home ports as possible. This encourages behaviour that mirrors history, which is good. The AI will not be able to do likewise, so advantage Human.

Even with the Human advantage of knowing to keep fleets close to ports, it doesn't matter because the AI has the huge money advantage, so even if they have plenty of fleets all over the place, they won't take too big a hit. So technically, the AI has the overall advantage .

[Kull]

Even with the Human advantage of knowing to keep fleets close to ports, it doesn't matter because the AI has the huge money advantage, so even if they have plenty of fleets all over the place, they won't take too big a hit. So technically, the AI has the overall advantage .

I'm only talking about advantage in the sense of "versus the status quo". Since the AI is already getting money, that's the "as-is" state. With this change it's now likely that they will get less - or at least less in relation to the human.

[Seamus Fermanagh]

I am honored to have sparked such a seemingly useful discussion.

My limited knowledge -- its been years since I read up on triremes, suggests that storage sheds were not uncommon, but that the facilities of Rhodes and Carthage (to use their English names) were the most extensive.

I love the distance idea. I always wondered about the Scythian fleets I would encounter off Carthago Nova in RTW Vanilla.

[The_Mark]

Militia unit garrison upkeep bonus can be done, to an extent, with the I_NumberUnitsInSettlement.

Supply lines: Now we're talking! Though, I'm afraid that we can't link it to government buildings in the provinces, we can certainly detect if a character is in enemy lands, but basing it on distance would probably be overly complex with the engine we have at hand. Traiting could, however, tie it to the time the general has spent in hostile territory..

[Malrubius]

Supply lines: Now we're talking! Though, I'm afraid that we can't link it to government buildings in the provinces, we can certainly detect if a character is in enemy lands, but basing it on distance would probably be overly complex with the engine we have at hand. Traiting could, however, tie it to the time the general has spent in hostile territory..

[Spitful]

Yay i finnally came up with something worth persueing, i did come up with it right? Even if someone else did i have some ideas about that

You could have a quatermaster ancillary, and alsorts of other ancillaries that could be derived from the howlong have you been in enemy territory trait, like if you took a new town or something like that after spending along time outside a city you get a "quatermaster" or something similar.

Also you could give him a trait based on what buildings were in the last town he stayed in cant you, you could say that a granary or armoury in that town dictates how good his logistics are, which could have an effect on the money he costs extra.