[WIP][1.8.1, 1.9.1, 1.10.1, 1.11.0–2, 1.12.2–5] Principia—version Καραθεοδωρή, released 2024-04-08—n-Body and Extended Body Gravitation
The source code is available on GitHub under the MIT license.
Abstract
This mod aims to replace KSP's unstable physics integration with a higher-order symplectic integrator, adding n-body Newtonian gravitation in the process.
Acronyms
Documentation and download
Principia is not built in the same way as most other mods (most of it is native code, with a thin C# interface layer), so that compatibility issues may arise depending on the platform.
Binaries are availabl
@Eriksson What about the Fukushima paper linked by @pleroy, or the ones that @Jim DiGriz linked? Those are specifically about computing the gravitational field given the shape.
@AloE Kerballoons is using Rigidbody.AddForceAtPosition instead of Part.AddForceAtPosition, which means that Principia cannot learn about those forces, and therefore cannot make them affect the trajectory; this is the same issue that we found in FireSpitter earlier:
In order to be compatible with Principia, a m
