How to make the AI do matri marriages - a fix

[ShepherdOfCats]

Well wagon I've been testing it, so I landed my two children (1 daughter and one son) to see what they would do if I gave them the freedom to marry (testing it to the limit I guess). Surprising the first issue came from my son's branch of the family. He died as a young adult and only had one daughter, who inherited his county, and thus she became my new heir. I allowed her to make her own decisions on marriage, and she promptly betrothed herself for a regular-marriage with the son of an opposing duke.

I'm afraid that the AI still values alliances and marriage status (even weak ones) more than continuing the dynasty, which is something that is probably beyond the reach of modders to fix, and is going to continue to be a problem so long as the devs think that it isn't important that the AI continues its dynasty.

I'll give a try to the one mediocre doctor posted above to see if there is any difference, but I appreciate all the work.

EDIT: I will add that I was using the one that monkbel put into a downloadable mod, so if his code is different from yours somehow maybe that is why I had issues.

 

[Tatterhood]

I'm afraid that the AI still values alliances and marriage status (even weak ones) more than continuing the dynasty, which is something that is probably beyond the reach of modders to fix, and is going to continue to be a problem so long as the devs think that it isn't important that the AI continues its dynasty.

This is controlled by defines, so it shouldn't be out of reach. We have SPOUSE_SCORE_LINEALITY_MISMATCH_SCORE at -500 by default while SPOUSE_SCORE_HIGHER_TIER_ALLIANCE is +1000, so it's no surprise this happens, but the former number could be made bigger.

 

[Wagonlitz]

EDIT: I will add that I was using the one that monkbel put into a downloadable mod, so if his code is different from yours somehow maybe that is why I had issues.

Haven't looked at his code. I've been using th code I posted in the first post and it has been working, at least partially, as I have seen the AI make matri marriages for the oldest daughters. Gonna check if it also does it for female rulers.
But it at least does consider them.

 

[Monkbel]

Well wagon I've been testing it, so I landed my two children (1 daughter and one son) to see what they would do if I gave them the freedom to marry (testing it to the limit I guess). Surprising the first issue came from my son's branch of the family. He died as a young adult and only had one daughter, who inherited his county, and thus she became my new heir. I allowed her to make her own decisions on marriage, and she promptly betrothed herself for a regular-marriage with the son of an opposing duke.

I'm afraid that the AI still values alliances and marriage status (even weak ones) more than continuing the dynasty, which is something that is probably beyond the reach of modders to fix, and is going to continue to be a problem so long as the devs think that it isn't important that the AI continues its dynasty.

I'll give a try to the one mediocre doctor posted above to see if there is any difference, but I appreciate all the work.

EDIT: I will add that I was using the one that monkbel put into a downloadable mod, so if his code is different from yours somehow maybe that is why I had issues.

thank you! in my test of my mod (with wagon's code), I see all female rulers (that I checked manually) in matrilineal marriages, so I am quite confident it works as it should. Of course there might be some cases when they don't do it but those regular marriages are rare now

 

[Monkbel]

Was it my original code version you used?

And yeah, good idea to make it a mod. I had contemplated that, but I've only ever made personal mods, so wasn't sure exactly how to do it.

I used the code that I quoted in my post. Didn't change anything. I tested - it works well, female rulers are all (or almost all) married matrilineally

 

[SHAFT!]

Has this been uploaded to Paradox?

BTW thanks to everyone for contributing to this thread. I stopped a Daurama playthrough because the only Matri-marriages for my daughters, and daughter's daughters, were the ones I could directly arrange.

 

[ulix]

There's also this mod which is more extensive: https://steamcommunity.com/sharedfiles/filedetails/?id=2242931629

I will try this mod when I get home, sounds great.

 

[Monkbel]

Has this been uploaded to Paradox?

BTW thanks to everyone for contributing to this thread. I stopped a Daurama playthrough because the only Matri-marriages for my daughters, and daughter's daughters, were the ones I could directly arrange.

I just uploaded it here https://mods.paradoxplaza.com/mods/13491/Any

 

[Willem IV]

Should not 'is_close_family_of = root' been used instead of 'is_heir_of = root' ?

 

[Wagonlitz]

Should not 'is_close_family_of = root' been used instead of 'is_heir_of = root' ?

It happens that an old ruler's primary heir is his grandchild and then the secondary heir is the great grandchild. Great grandchildren aren't considered close family, so if both of those are women then only the primary heir is matri mattied. If she dies then it's poof, whereas the is_heir_of argument should take care of a situation like that.

 

[Willem IV]

It happens that an old ruler's primary heir is his grandchild and then the secondary heir is the great grandchild. Great grandchildren aren't considered close family, so if both of those are women then only the primary heir is matri mattied. If she dies then it's poof, whereas the is_heir_of argument should take care of a situation like that.

Maybe adding the 'is_close_or_extended_family_of ' to the OR (so 2nd heir and the larger family is covered). Would make sense for female dominated faiths

 

[Wagonlitz]

Maybe adding the 'is_close_or_extended_family_of ' to the OR (so 2nd heir and the larger family is covered). Would make sense for female dominated faiths

Wouldn't extended family just mean the entire dynasty?

And the is heir thing should work for female dominated faiths too.

 

[SauronGorthaur]

Found out how to get matri back.

I grepped the files for the new argument and found it in common/scripted_rules/00_rules.txt
If you enter that file then you'll find the following at the very bottom of the file.

# Will AI for this character try to arrange matrilineal marriages?
# Note that the AI can still arrange patrilineal marriages based on the SPOUSE_SCORE_LINEALITY_MISMATCH_SCORE AI define
# root: the arranging AI character
# scope:secondary_actor: the character to be married
ai_wants_matrilineal_marriage = {
    scope:secondary_actor = {
        is_female = yes
    }
    OR = {
        has_realm_law = female_only_law
        has_realm_law = female_preference_law
        faith = {
            has_doctrine_parameter = female_dominated_law
        }
    }
}

Change that to this and both agnatic-cognatic and equal should have the AI do matri marriages again!

# Will AI for this character try to arrange matrilineal marriages?
# Note that the AI can still arrange patrilineal marriages based on the SPOUSE_SCORE_LINEALITY_MISMATCH_SCORE AI define
# root: the arranging AI character
# scope:secondary_actor: the character to be married
ai_wants_matrilineal_marriage = {
    scope:secondary_actor = {
        is_female = yes
    }
    OR = {
        has_realm_law = female_only_law
        has_realm_law = female_preference_law
        has_realm_law = male_preference_law
        has_realm_law = equal_law
        faith = {
            has_doctrine_parameter = female_dominated_law
        }
    }
}

Out of curiosity, but shouldn't the fixed version also include

faith = {
     has_doctrine_parameter = gender_equal_law
}

For the record, I don't know why the base version include the female_dominated_law parameter in the first place, because under a female dominated religion you have either female only law or female preference law, which are already included in the code separately. But assuming that line is there for a reason, if one was to extend it to other religious gender rules, particularly the equality one, shouldn't it be also included?

Haven't looked at his code. I've been using th code I posted in the first post and it has been working, at least partially, as I have seen the AI make matri marriages for the oldest daughters. Gonna check if it also does it for female rulers.
But it at least does consider them.

I've also been using the code from the first post and I've had weird results. For the most times, the AI does marry matrilineally. But sometimes it doesn't. Even when it's not marrying up. I also had the opposite results where male rulers married matrilineally. Including the king of West Francia, who matri married some utter nobody.

 

[Wagonlitz]

Out of curiosity, but shouldn't the fixed version also include

It should. Just didn't think about the equal faiths really, when I wrote things up.

I also had the opposite results where male rulers married matrilineally. Including the king of West Francia, who matri married some utter nobody.

Weird.

 

[ShepherdOfCats]

I will try this mod when I get home, sounds great.

I've been using it and no problems so far. The problem with that one is that it seems all the children get married off matrilineally, when ideally under equal succession the oldest daughters would be married off matrilineally and the youngest ones would be married off regularly. Otherwise I think it won't be very balanced.

I'm still following Wagonlitz's mod as well. I've only been testing w/ equal faiths. But to keep from messing things up I'm only using one mod at a time.

In any mod, there still will need to be a way to not let the AI destroy their dynasty for the sake of an alliance. Players would not do that. I could marry off my oldest daughter in regular marriages to the Byzantine emperor and have the best alliance in the game but obviously it wouldn't matter because my game would end when my grandchildren inherit. Whereas the AI just doesn't care.

 

[Monkbel]

I've been using it and no problems so far. The problem with that one is that it seems all the children get married off matrilineally, when ideally under equal succession the oldest daughters would be married off matrilineally and the youngest ones would be married off regularly. Otherwise I think it won't be very balanced.

I'm still following Wagonlitz's mod as well. I've only been testing w/ equal faiths. But to keep from messing things up I'm only using one mod at a time.

In any mod, there still will need to be a way to not let the AI destroy their dynasty for the sake of an alliance. Players would not do that. I could marry off my oldest daughter in regular marriages to the Byzantine emperor and have the best alliance in the game but obviously it wouldn't matter because my game would end when my grandchildren inherit. Whereas the AI just doesn't care.

in my mod (based on Wagonlitz's code) only heirs will get married matrilineally.