Initial Observations: 2/9 Build

Uncle_Joe

Prince
Joined
Sep 9, 2005
Messages
491
Hi all,

I downloaded 2/9 and played the bulk of a game out (until late Industrial). Settings were Epic, Fractal, 7 Civs, No Aggressive AI, Custom Handicaps.

Overall, the AI is starting to feel really polished. I didnt observe a lot of poor tactical behavior from the AIs. They sallied from cities to attack my troops and they nicely picked off stragglers or lightly escorted Siege weapons moving to the front. The AIs seemed to expand pretty well and a few were leading me in tech for quite a while.

On the downside, I think the AIs are still dragging each other down in endless wars. I know that players can exploit the hardcoded end dates for wars, but the AIs are staying locked in wars for a LONG time. And usually soon after finally getting peace, a handful of turns later and they declare on someone else. I dont think I saw a single turn of peace amongst the AIs from the Classical Age on. There was always SOMEONE fighting someone else and often without much actual resolution (so a lot of pillaging and the occasional city taking/retaking). There were a few instances of 'feeding frenzy' where an AI would be attacked and 2-3 others would pile on and tear them up.

But on the war front, I think the AIs are little too eager to DoW anything that moves (or doesnt move) and are a little too sullen about making peace. I didnt observe any ungodly stacks this game, although there was a LOT of fighting going on on the other side of the world that I wasnt able to see.

Another slight downside to the constant AI warfare is that it makes it easier to be opportunistic and take some easy land. I stopped playing my game when it became apparent that no one else was going to be able to keep up with me. My production and GNP far exceed those of the nearest rival (although I was in the middle of the pack or lower for quite some time). The thing that again put me on top was taking out my closest neighbor (although he attacked me first and was also later caught in a 2-front war that chewed up his army).

Prior to BetterAI, I was never really a warmonger. But I feel like I'll never keep up now unless I have more 'stuff' than the AIs so that prompts attacks. And since I have to have a large military now just to compete, there is more temptation to use it. I would like to see a win (either me or an AI) without going on the war path.

I dont know if this is within the scope of BetterAI or not, but would it be possible to reduce the number of AI requests for the player to DoW another AI? Since the AIs are spending a lot more time at war, I'm getting spammed with request for me to attack 'x' or 'y' Civ constantly. Not only is annoying after a while, it really starts to hurt relations when you build up those 'you refused to help us during wartime'...um, its ALWAYS wartime with some of these guys.... ;)

Anyways, overall I think its still moving favorably along. I want to test a few more games to see if the constant wars were more a function of the map layout this game (a long, sort of thin pangea-style map) or the ways religions formed (they seemed to alternate between Civs going down the line leading to a lot of hostile borders). On the plus side, Isabella (of all people) adopted Free Religion fairly early and that helped keep her out of some of the later 'religious wars' (and in fact, she was my closest competitor for some time until she and Mansa went to war in a mutually destructive mess).

Nice job on the build. I hope to hear other people's experiences and see if the wars are widespread or not.

Thanks!
 
My observation on 2/9 so far:

Nice AI use of mountain promotions...making my amphibious assaults harder.

[Grumble.]

I also agree w/Joe's 'always war' observation. In this current game, it seems as though everyone is always gearing up for war with someone.

(FYI -- current game = standard/tectonics/normal speed/12 civs/noble/started on 01.30, now on 02.09 build)

Izzy signed a peace treaty with someone one turn. I noticed that she was willing to be bribed into a war with someone else that turn. The next turn, she wasn't. I used chipotle and discovered that she was gearing up for a 'total war' against Korea. Korea is not only on the other side of the world from her, but it's also an almost landlocked country; she'd have to fight thru Incan or Carthaginian land just to get to it, and even if she took territory, she probably couldn't hold it due to cultural effects.

I noticed that Mansa Musa, who lives all alone on his own island, was a constant whipping boy for several different civs until he finally became Ragnar's vassal. NO one actually took a city from him, either, although some troops were landed (and, apparently, beaten back,) and fishing boats shot up.

It just seems that the AI has a tendency to keep making 'daft' declarations of war -- against civs that they can't possibly do any real damage to. I noticed this in 1/30, too, where in one game Hannibal DoW'd me, despite the fact that I was across a freakin' ocean and he didn't even have astronomy yet (although I did). That one made NO sense, since he couldn't really hurt me, but I could (and did) hurt him rather badly....

On the flip side, even though I shared a continent with Julius Caesar, I managed (though luck and diplomacy, I guess,) to avoid any fighting with him whatsoever (especially once he got sucked into that dogpile on Mansa Musa.)


Otherwise, though, the actual tactical maneuvering of the AI is good. They are fighting well. I am enjoying this build very much, notwithstanding the above quibbles.
 
I havent had a chance to play a MP game yet.
 
Any feedback on network games yet? Out of Sync errors fixed?

-Iustus

I have done some limited testing and where in the past I could easily recreate the problem in about 30 minutes of trying, I have been unable to recreate it yet....and that is with about 60 minutes of trying. I hope to give it a more serious test with a friend over the next few days.
 
In several starts I was DoW'd very early, usually with attack stack of one archer.. I'm playing on Prince, wanting mainly to go for more peaceful game, so this is quite annoying. Are the AIs more likely to DoW early on now than in earlier builds?
 
In several starts I was DoW'd very early, usually with attack stack of one archer.. I'm playing on Prince, wanting mainly to go for more peaceful game, so this is quite annoying. Are the AIs more likely to DoW early on now than in earlier builds?

No changes in DoW in this build from 1/30

Were you playing with Aggressive AI set or not? (Everyone, not just Elandal).

-Iustus
 
Just wanted to provide some feedback.

We played a game about 6 hours with 3 human players on a small map with a total of 18 Civs and no OOS issues at all. Great work on the latest build.

I am noticing several AI's leave there initial city undefended the first few turns. I was able to eliminate a civ early in the game by rushing his city with my warrior and taking it.

This could be my map settings as well. Everyone is fairly close quarters.

Other than that everything looks good.
 
I'm playing with "Play Now" settings, so no Aggressive AI.
I don't recall ever being DoW'd with just archers before. Usually I keep out of wars before middle ages, and only occasionally have been drawn to wars before that.
The attackers are of course the usual suspects: Ragnar, Alex, Augustus (hmm.. I thought Julius was more aggressive), Toku. Augustus once even DoW'd from the other side of the world - at least the others have had sense enough to DoW only when bordering. Ragnar was at Peace + Dagger + Crush when he DoW'd (he seems likely to go Dagger with Crush from almost the game start), but as I restarted I don't know if he had a real SoD somewhere behind the archer.

I'll continue starting games on Prince still, as I believe on that level peaceful game should definitelly be possible. Early wonders aren't easy to come by though - Oracle usually goes around 1200BC (1350BC earliest I've seen on Prince for now), Stonehenge and GW usually way before that, Pyramids sometimes in the late BCs.. No more wonderbuilding for me (unless I go down to Noble) :(
 
I found a big bug, war is declared much much much more often than they should be. In updating the chipotle code to use the new percentages (based on a change made recently to declare war more when AI is paying high unit support costs), I found a bug in that code. When it thinks it should have a 5% chance of declaring war, it actually has a 95% chance for declaring war.

So, your observations that the AIs are always at war is not in error. This bug first occured in the 1/29 build, and is in every build since that time. (For you SVN junkies, the bug first occured in rev 291)

Expect a fix soon.

-Iustus
 
Ok, that explains a lot. I dont mind having wars, but tons of mindless, endless wars gets to be a drag.

Hopefully the AIs will still fight (that is a pretty big swing!), but I hope their wars are more focused. I still like to see the occasional AI 'archer rush' because it keeps the player on his toes. So hopefully that kind of stuff will still be there.
 
Ok, that explains a lot. I dont mind having wars, but tons of mindless, endless wars gets to be a drag.

Hopefully the AIs will still fight (that is a pretty big swing!), but I hope their wars are more focused. I still like to see the occasional AI 'archer rush' because it keeps the player on his toes. So hopefully that kind of stuff will still be there.

Note, there are really two different random checks for war, this is just the main one. This bug does not cause it to declare wars that are prohibitied by either weaker military or good enough relations. It only causes the chance for war, when war is possible to be extremely high.

For those coders or intersted in coding, the bug is caused by something very easy to do on accident: using a greater than or equal ">=" when what is needed is a less than or equal "<=". Considering the fact that most random checks do use ">=" by convention in Civ4, and you see how easy this bug was to create.

In any case, every AI, of any personality, will declare war virtually any time it has an advantage. Fixing this should go a long way to addressing people's concerns about having to have too big a military. (If anything, once this bug is fixed, it may be necessary to increase the aggression level some).

-Iustus
 
Ok, that explains a lot. I dont mind having wars, but tons of mindless, endless wars gets to be a drag.

Hopefully the AIs will still fight (that is a pretty big swing!), but I hope their wars are more focused. I still like to see the occasional AI 'archer rush' because it keeps the player on his toes. So hopefully that kind of stuff will still be there.


I agree -- while switching 2% for 98% was too much, I hope that wars are still declared with some frequency. I might have to switch up to "aggressive AI" for the first time if the AI becomes too pacifist....
 
Odd about this DoW bug, since I'm seeing the opposite behavior in my current 02-09 game.

At this point in the game I have Grenadiers, yet I have not been in a single war. I don't have a memory of any wars, though there may have been some between far-flung civs. I have been the tech leader through most of the game, but have been amongst the bottom of the pack in terms of power. I even have been running with my own religion. Seems like a formula for somebody to attack me, yet...
 
Odd about this DoW bug, since I'm seeing the opposite behavior in my current 02-09 game.

At this point in the game I have Grenadiers, yet I have not been in a single war. I don't have a memory of any wars, though there may have been some between far-flung civs. I have been the tech leader through most of the game, but have been amongst the bottom of the pack in terms of power. I even have been running with my own religion. Seems like a formula for somebody to attack me, yet...

Have they been going after each other?
 
Odd about this DoW bug, since I'm seeing the opposite behavior in my current 02-09 game.

At this point in the game I have Grenadiers, yet I have not been in a single war. I don't have a memory of any wars, though there may have been some between far-flung civs. I have been the tech leader through most of the game, but have been amongst the bottom of the pack in terms of power. I even have been running with my own religion. Seems like a formula for somebody to attack me, yet...

I don't remember any wars. I've been repeatedly asked to quit trading with this civ and that, which usually indicates a build-up toward war. But nothing comes of it.

It sounds like you have a combination of factors which cause no wars to be considered possible. Distance/attitude/power ratios can all make war considered impossible. It is only 'total war' that will trigger almost all the time, limited wars and dogpile wars are not bugged.

-Iustus
 
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