CK3 to EU4 Converter Development Thread

[Idhrendur]

Excited at the thought of this converter? Looking to join the team? Or have some ideas for us to improve it? This is the place for you!

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Links

Release Thread

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Types of help needed

• Programmers: we can always use more programmers. The converter itself is in C++, and the tools that go with it are in C#.
• Map-staring experts: we do our best, but its likely there's a region you know well and can improve the mappings for.
• Testers: Catching bugs and oddities earlier means they get fixed earlier. We automatically update the development release with all new work, so it's always worth checking. And if you have professional experience in testing, well, I'm sure we could be doing things far better. Tell me how!
• Modders: We can always use help figuring out how things work, and how we can do them better. If you know how to mod EU4, we can use your help figuring it out. As well, there's always more room for flavor events, decisions, and the like.
• Everyone: We can always handle more discussion on how things are converted. As well, I try to document implemented items over on the project wiki. And your encouragement helps more than you know!

 

[thatsgerman]

Long time no see

I was thinking about trying to develop tool to convert CK3 baronies/counties to provinces in EU4, since that was the absolute worst part of making the DH and HOI4 converter, and I'm guessing the worst part of maintaining the converter for HOI4. with those 2 converters at least Vic2 wasnt getting any province changes...
Anyway, no idea if it will work out but thought I would give it a shot and saw you already made a thread.

 

[Zemurin]

Long time no see

I was thinking about trying to develop tool to convert CK3 baronies/counties to provinces in EU4, since that was the absolute worst part of making the DH and HOI4 converter, and I'm guessing the worst part of maintaining the converter for HOI4. with those 2 converters at least Vic3 wasnt getting any province changes...
Anyway, no idea if it will work out but thought I would give it a shot and saw you already made a thread.

Thanx, we managed to get it working:

Spoiler

We won't be doing baronies as those are too numerous and in ck3 they are indivisible from counties, so we're using a ck2-style approach with counties mapping to provinces as you can see in the map - the source map is a modified map with all baronies merged into counties.

 

[Kazanov]

You guys are by far my favorite team (or teams) thanks for providing us with the tools to play Megacampaigns :3

 

[nephilim2k]

I have already done a religion strip (has 78 religions) for my EU4 mod! Here are the base religions of EU4.... Happy to share the rest

 

[PheonixScale9094]

I’m a novice in C++ but I’m interested in helping out with the programming. I also have a bit of experience with EU4 modding. Is there any way I can help out with either one of those areas?

 

[nephilim2k]

I will add, I am doing an EU4 overhaul mod, so can definitely help. The only issue will be when you do confucian based religions as they require harmony, and I don't think any mod has managed to get that to work properly!

 

[Aztlantix]

Well, that is a good news indeed. I only hope you can bring to life couple quality of life improvements:

1) Converted Personal Unions
If some characters hold two titles ofthe same rank (say, Kingdom of England and Kingdom of Norway) then his primarly title converts as regular one, but secondary also converts as separate country but as a lesser partner in personal union. That way you could show how convoluted mediaval succesion was.

2) Culture of the converted state is not based on ruler's culture, but on average culture of his direct vassals. Therefore if lets say your king is norwegian Hardrada, but 90% of his vassals are Anglo-saxon, then converted state's primary culture should be anglo-saxon. In cases where vassals culture splits equally 50-50, like 5 direct vassals ofrussian culture and 5 of norse in case of Kievan Rus, we just add up Ruler's culture on top (norse Rurik) and therefore resolving the draw.

If you manage to implement those two things, I think that would be absolutely gorgeous!

 

[Zemurin]

Well, that is a good news indeed. I only hope you can bring to life couple quality of life improvements:

1) Converted Personal Unions
If some characters hold two titles ofthe same rank (say, Kingdom of England and Kingdom of Norway) then his primarly title converts as regular one, but secondary also converts as separate country but as a lesser partner in personal union. That way you could show how convoluted mediaval succesion was.

2) Culture of the converted state is not based on ruler's culture, but on average culture of his direct vassals. Therefore if lets say your king is norwegian Hardrada, but 90% of his vassals are Anglo-saxon, then converted state's primary culture should be anglo-saxon. In cases where vassals culture splits equally 50-50, like 5 direct vassals ofrussian culture and 5 of norse in case of Kievan Rus, we just add up Ruler's culture on top (norse Rurik) and therefore resolving the draw.

If you manage to implement those two things, I think that would be absolutely gorgeous!

1. We do that in ck2toeu4 already,
2. This is not vic2, it is eu4. Primary culture is precisely what ruler says that is, look at Epirus in greece that has primary culture Tuscan or Neopolitan because it was inherited by several italian families. This is why it is possible to have 12 "accepted cultures" in the court, a number otherwise meaningless - province culture and religion represent those of its nobility, not peasentry.

Thatx for the ideas, please bring more but first take a peek at ck2toeu4 wiki so you see what we already support.

 

[IndigoRage]

2. This is not vic2, it is eu4. Primary culture is precisely what ruler says that is, look at Epirus in greece that has primary culture Tuscan or Neopolitan because it was inherited by several italian families. This is why it is possible to have 12 "accepted cultures" in the court, a number otherwise meaningless - province culture and religion represent those of its nobility, not peasentry.

I would argue that there are EU4 tags where this is demonstrably not the case, with the crusader states in Greece, Cyprus, and Livonia as exceptions. See: the primary culture in Mamluks is not Circassian, Cilli's primary culture is Slovenian despite being ruled by German counts. The primary culture of Denmark is also Danish despite its king in 1444 having been a German noble. Which reminds me of the fact that tags under PUs are also not the primary culture of their overlord.

In EU4 it actually isn't that important to me (aside from for colonization), but in the long run when it gets to Vic2 when nation-states are supposed to exist is when it becomes a problem.

Of course my beef isn't with the converter dev team for being kind of hardliners on this issue, but more with the EU4 devs for not blessing the AI with some kind of mechanism to change its primary culture when it has literally 0 land that represents it. I do still feel like ruler culture = primary culture is still a little too hard a line to draw here, but I don't know how I would handle a solution.

 

[Zemurin]

I would argue that there are EU4 tags where this is demonstrably not the case, with the crusader states in Greece, Cyprus, and Livonia as exceptions. See: the primary culture in Mamluks is not Circassian, Cilli's primary culture is Slovenian despite being ruled by German counts. The primary culture of Denmark is also Danish despite its king in 1444 having been a German noble. Which reminds me of the fact that tags under PUs are also not the primary culture of their overlord.

In EU4 it actually isn't that important to me (aside from for colonization), but in the long run when it gets to Vic2 when nation-states are supposed to exist is when it becomes a problem.

Of course my beef isn't with the converter dev team for being kind of hardliners on this issue, but more with the EU4 devs for not blessing the AI with some kind of mechanism to change its primary culture when it has literally 0 land that represents it. I do still feel like ruler culture = primary culture is still a little too hard a line to draw here, but I don't know how I would handle a solution.

Salient points, demonstrating the inconsistencies in vanilla EU4 well. AI being unable to swap primary culture is the most glaring flaw, of course. I'll see what's going on with cultures under PUs, and maybe we do implement a census-type system for setting primary culture.

 

[IndigoRage]

Salient points, demonstrating the inconsistencies in vanilla EU4 well. AI being unable to swap primary culture is the most glaring flaw, of course. I'll see what's going on with cultures under PUs, and maybe we do implement a census-type system for setting primary culture.

Something else from EU4 that comes to mind is that there are actually events for when a ruler/heir's culture doesn't conform to the primary culture. This could add some flavor to runs should primary culture's in converted games end up more conceptually nebulous and more representative of the majority culture in the future.

 

[Hejsan]

How will custom religions be converted?

 

[nephilim2k]

I would hazard that they're taken from the base religion (IE Custom Norse would probably be considered to be Norse)

 

[Zemurin]

I would hazard that they're taken from the base religion (IE Custom Norse would probably be considered to be Norse)

You would hazard wrong.

 

[Zemurin]

How will custom religions be converted?

Customly. Patience.

 

[nephilim2k]

You would hazard wrong.

Well....damn!

 

[Trotskek]

Excited at the thought of this converter? Looking to join the team? Or have some ideas for us to improve it? This is the place for you!

----------------
Links

Release Thread

----------------

Types of help needed

• Programmers: we can always use more programmers. The converter itself is in C++, and the tools that go with it are in C#.
• Map-staring experts: we do our best, but its likely there's a region you know well and can improve the mappings for.
• Testers: Catching bugs and oddities earlier means they get fixed earlier. We automatically update the development release with all new work, so it's always worth checking. And if you have professional experience in testing, well, I'm sure we could be doing things far better. Tell me how!
• Modders: We can always use help figuring out how things work, and how we can do them better. If you know how to mod EU4, we can use your help figuring it out. As well, there's always more room for flavor events, decisions, and the like.
• Everyone: We can always handle more discussion on how things are converted. As well, I try to document implemented items over on the project wiki. And your encouragement helps more than you know!

I may be of help at "Map-Staring" in Middle East and Anatolia (+thrace).

 

[Zemurin]

I may be of help at "Map-Staring" in Middle East and Anatolia (+thrace).

Thanx. We have preliminary mappings in place for the whole world but due to the changed format of CK3/imp maps compared to old-style maps (eu4 onwards) the software is not trivial to set up or use. Once we get it fixed so anyone can use it easily, I'd be more than grateful for people to look at the mappings and improve on them. I'll keep you in mind.

 

[Trotskek]

Thanx. We have preliminary mappings in place for the whole world but due to the changed format of CK3/imp maps compared to old-style maps (eu4 onwards) the software is not trivial to set up or use. Once we get it fixed so anyone can use it easily, I'd be more than grateful for people to look at the mappings and improve on them. I'll keep you in mind.

No problem.