07:25 <queqiao-> ⟨sichelgaita⟩ ... and the corresponding implementation file "geopotential_body.hpp".

10:21 <queqiao-> ⟨pisslover72⟩ wow i hate c++

10:26 <queqiao-> ⟨pisslover72⟩ yeah this stuff is way above my level. cool to see this in ksp

11:19 <queqiao-> ⟨egg⟩ The fact that the declarations in the .hpp and the definitions in the _body.hpp are in separate file is not C++’s fault (these are templates so they are all in header files anyway), it is merely something we do systematically to help with organization and readability: you can look at geopotential.hpp and see the API and comments about it, without having to care about the fairly tricky and generally irrelevant implementation details.

11:25 <queqiao-> ⟨pisslover72⟩ ah i see

15:02 <queqiao-> ⟨kraimoco⟩ Can someone explain how axial tilt works in principia? From previous posts, it seems that apparently the entire universe is tilted for each of the planets and maybe moons (which also tracks with how intensely the mod uses different frames of reference for navigation and what not), but how do you make it so that these 'universal' tilts only work for the desired planets and satellites, like how do you make it so the tilt for Mars...

15:02 <queqiao-> ... doesn't mess up the tilt for Earth, and that spacecraft entering these universal tilt zones or something don't just turn into weirder SOIs?

15:05 <queqiao-> ⟨kraimoco⟩ Honestly whatever hack he has set up could probably be turned into it's own mod for the RO mod-pack lol

15:21 <queqiao-> ⟨egg⟩ This has been asked before, this will be asked again. Most recently in https://forum.kerbalspaceprogram.com/topic/162200-wip181-191-1101-1110%E2%80%932-1122%E2%80%935-principia%E2%80%94version-%E2%80%8E%E2%80%8E%DA%A9%D8%A7%D8%B4%D8%A7%D9%86%DB%8C-released-2024-05-08%E2%80%94n-body-and-extended-body-gravitation/page/84/#comment-4391544,

15:21 <queqiao-> No, it could not, because the few people who could do such a thing have better things to do with their lives than maintain a mod that is effectively all the complexity of Principia without any of interesting stuff.

15:30 <queqiao-> ⟨kraimoco⟩ Oh okay, I guess axial tilt really is a land-mine within ksp, good thing you're some sort of professional gravitational bomb-defuser. It's honestly a bit daunting how the majority of space games lack this fundamental feature of space-flight, but that's a bit off topic.

15:32 <queqiao-> ⟨kraimoco⟩ Smaller question, do you have an invariable plane frame of reference in the mod? Since it's basiaclly the closest you can get to an objective ecliptic in our solar system.

15:33 <queqiao-> ⟨kraimoco⟩ * a frame of reference which centers the "invariable plane" in the mod? Since it's basically the closest you can get to an objective ecliptic for our solar system when going interplanetary, even if just using Earth-s orbit as zero is better, lol.

15:34 <queqiao-> ⟨kraimoco⟩ * Earth's orbit as the flat plane is more convenient,

15:45 <queqiao-> ⟨egg⟩ No; it is not a very useful plane anymore, see https://ui.adsabs.harvard.edu/abs/2015jsrs.conf...61C/abstract.

16:02 <queqiao-> ⟨sichelgaita⟩ Lol indeed. One thing that has perhaps not been stressed enough in previous discussions is that tilting the celestials is not easy, but compensating the tilt to properly orient the vessels is really, really, hard. It took the best part of a year to do it, see https://github.com/mockingbirdnest/Principia/issues/1639#issuecomment-590596595.

16:02 <queqiao-> ⟨sichelgaita⟩ +us

17:05 <queqiao-> ⟨lamont⟩ oh wow that bug was vastly more awful that i ever imagined