Potential Aggressive Expansion Guide...

[Laladen]

I have drafted say, 80% of an extremely comprehensive Aggressive Expansion / Coalition Steam guide.

I have two examples of the AE calculation. One as Bohemia and taking Wurzberg. Another as the Ottomans and taking Wallachia.

When I run the math with the Bohemia example, with different surrounding countries, it adds up. I can calculate each country's AE to the number.

When I use the same math and apply it to the Ottoman example, the math comes out 3.5 above where the tooltip in game says it should.

I am taking the information directly from the .LUA file. I understand the order of operations with the math. I am literally not missing anything.

But yet it is 3.5 AE off. The only thing I can think off is maybe some rounding issues I am not aware of. But I have ran those numbers and it only knocks off a little.

Here is the scenario:

http://steamcommunity.com/sharedfiles/filedetails/?id=849719714

Province	Development	Religion	Culture
Olentia	10	Orthodox	Romanian
Tîrgoviste	16	Orthodox	Romanian
Buzau	13	Orthodox	Romanian

The Ottomans development is 381. Wallachia is obviously 39. This is a 3.81% AE penalty to the Ottomans applied in the Additive stage.

The Ottomans total Aggressive Expansion Impact modifier is 4.0% from Prestige.

Serbia is Orthodox, and in the South Slavic culture group.

Wallachia is in the Carpathian Culture group. This means Serbia gets no culture modifier to AE from Ottomans annexing Wallachia.

Serbia & Wallachia are both Orthodox. This is a 50% additive modifier

The Ottomans are a different religion group and are taking land. This is a +25% additive modifier.

The total additive modifier is 278.81% (base 100, 75 from same religion & infidel conqueror, 3.81 difference in development between the two countries)

The base AE is .75 per development x (100-4 (AE Impact mod))%

So base AE .75 x 39 dev.= 29.25. Then 100-4=96%. 29.25 x 96%= 28.0.

28.0 is the number in the text in the center of the peace deal under Summary. So I know my math is right to this point.
Let's continue with calculating what Serbia's AE is.

28 base AE x 278.81 =78.0

AE when passing over a country's border experience a Hop which is multiplicative. Meaning it happens after the other calculations. This calculation is what makes AE weaken the further it travels on the map.

78.0 x 75%= 58.5

58.5 is not 55 as shown in the tooltip. I have tried this many different methods. It's always over. I am quite but not 100% certain of the order of operations after I got the 28% You can get a good guess at how it works by the way it is formatted in the .LUA file.

So my question is, can anyone tell me why this number is not 55.x? I am fairly certain the math is correct. If I can fix the math, I can publish the guide and answer a lot of people's questions on how AE and coalitions work. Of course it is always possible that EU4 is calculating it wrong =P

Please stay on topic and be constructive. I don't need your opinion on AE as a mechanic in general or DLC policies. I just want constructive input on this riddle.

[IndirectHero]

Not sure if you add the spy network into it, but it also gives -AE by 10% if it is at 100.

Another thing, is that provinces with claims also give reduce -AE. Not sure if the AE are already calculated, but that just something to ponder about for your equation.

[Laladen]

Originally posted by Indirect_Hero:

Not sure if you add the spy network into it, but it also gives -AE by 10% if it is at 100.

Another thing, is that provinces with claims also give reduce -AE. Not sure if the AE are already calculated, but that just something to ponder about for your equation.

I left out modifiers that are not applying. Such as HRE or Spy Network.

Claims do not lower AE. Claims now only reduce warscore cost by -10% and coring cost by -10% Source Patch 1.17.[www.eu4wiki.com]

• Wargoals for claims no longer reduce AE

Also it's not in the .lua file.

Bit of trivia. Claims never actually lowered AE. The pre-1.17 Conquest CB did. It was 75% AE for claims taken. Now it's 100%AE.

[IndirectHero]

Originally posted by Fedaykin:

Originally posted by Indirect_Hero:

Not sure if you add the spy network into it, but it also gives -AE by 10% if it is at 100.

Another thing, is that provinces with claims also give reduce -AE. Not sure if the AE are already calculated, but that just something to ponder about for your equation.

I left out modifiers that are not applying. Such as HRE or Spy Network.

Claims do not lower AE. Claims now only reduce warscore cost by -10% and coring cost by -10% Source Patch 1.17.[www.eu4wiki.com]

• Wargoals for claims no longer reduce AE

Also it's not in the .lua file.

Bit of trivia. Claims never actually lowered AE. The pre-1.17 Conquest CB did. It was 75% AE for claims taken. Now it's 100%AE.

Ah okay, that explains why I was able to annex all of LO as Lithuania with the LO conquest mission.

[mischa.zehnbauer]

Hm, strange. Doing the reverse operations your modifier would need to be 261,9. Sorry, no idea how to get there.

DId you try to narrow down the problem? Taking land as the Ottos from another country vs. taking wallachia or orthodox land in general as another country.

That guide is a great idea btw!