Some questions about maps.

Nikas Kunitz

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Joined
Jun 17, 2016
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Yoshkar-Ola, Russian Federation
I hope this discussion will get attetion of various players, including mapmakers and modmakers.

While slowly finishing my maps for publicaion, a question I wanted to ask long ago came again to me. As mapmaking per se is kinda a hobby of mine, I actually played quite little on maps I made over the years. Instead, I mostly played on improved maps with various mods, and playthrough rarely reached modern era or victory (except for RFC mods). In strife for greater detail and representation of real geography (and many important cities for history) along with beauty, maps tend to become bigger and bigger. As such, they become more and more burdensome for the game itself to sustain and for player to play, and that all was noted in some mods (most notably in RI). So, I wanted to ask about limitations we have regarding maps in Civ4.

The first one is, of course, about map size. Here I came to conclusion that anything beyond width of 200 tiles (and proportional height ranging between 100 and 200) surely is on limits. This, of course, essentially depends on the map itself - land-to-water ratio, how much land is really usable and will be settled and so on. Also, I noted that tiles east of 210-220 column start to have a visual glitch - they appear shadeless, like freshly placed terrain in world editor. So, what limits regarding map size do you guys know? Is width of 200+ tiles really the effective limit?

While mapsize can be a tricky measure considering what is stated above, I think the more useful is the city limit. Actually, this is the main question I wanted an answer to. Is there a hard-limit on number of cities on map? I certainly remember changeable one while tinkering with RFCDoC - is this a vanilla thing? Is it 50-100 cities by default? And, if it is changeable, how much can we really have on a map to still keep it playable/running? 300 cities maybe, more, or less?
 
About width and length I can only say that yes, there is a limit, probably something like what you already wrote.

About number of cities:
In my mod in my last game I reached into the late industrial era (before losing it altogether due to win reinstall). I had a little more than 100 cities, while the rest of them world had around 100-200 cities. So I'd say that 300 is absolutely reachable and I know of no hard limit. RAM is a different story question but I think cities contribute to that less than units.
 
About width and length I can only say that yes, there is a limit, probably something like what you already wrote.

About number of cities:
In my mod in my last game I reached into the late industrial era (before losing it altogether due to win reinstall). I had a little more than 100 cities, while the rest of them world had around 100-200 cities. So I'd say that 300 is absolutely reachable and I know of no hard limit. RAM is a different story question but I think cities contribute to that less than units.

Great to see that, based on your experience! I worried about city limit making my maps unplayable, but now I feel safe(r) about that - projected number of cities on them is generally between 250-400 cities. Also, does your mod have components that optimise game perfomance, and how optimised is vanilla, and is there "limit of optimisation" for Civ4 engine? And also, how labourous was managing such a huge empire of 100 cities?

And finally, can addition of some mechanics that limit number of units, based on population and other factors beyond vanilla maintenance cost, effectively help with too much units in late games?
 
does your mod have components that optimise game perfomance, and how optimised is vanilla, and is there "limit of optimisation" for Civ4 engine?
My mod (is a modmod of AND2 and I'm making mostly XML changes and) has Graphical Paging and optional Viewports, both greatly contributing to better performance.
Vanilla Civ4 is not that optimised but is also less "stuffed with stuff". It's limits is being a Win32 app. There is a project to end this limitation:
https://forums.civfanatics.com/threads/mini-engine-progress.691873/
He is testing his engine on an extremely huuuuuuge map.
 
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