UmbralRaptop changed the topic of #principia to: READ THE FAQ: http://goo.gl/gMZF9H; The current version is 🐇. We currently target 1.5.1, 1.6.1, and 1.7.x. <scott_manley> anyone that doubts the wisdom of retrograde bop needs to get the hell out | https://xkcd.com/323/ | <egg> calculating the influence of lamont on Pluto is a bit silly…
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Sky!. — hey, would an interstellar pack with nearby star system blow up principia or would it work?
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Kirk. — I recall someone installed one and it was fine
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Kirk. — Principia basically works by taking the properties of bodies and sticking them where it thinks they should be based on newtonian physics, so as long as your other star systems are stable it should be fine
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lamont. — setup a nearby system that is unstable and ejects a planet towards Earth
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Skylar. — ? why xD
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lpg. — why _not_
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Skylar. — I mean
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Skylar. — ok
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Skylar. — xD
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Skylar. — (I'm not making a planet pack or anything tho, I was just going to see if I could get real exoplanets to work with principia)
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Ampersand. — The real problem is such an ejected planet would take too long to matter to most players
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Ampersand. — except by ruining frames, obviously
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Skylar. — ruining frames?
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Ampersand. — Framerate issues caused by handling objects on interstellar trajectories
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Skylar. — ah
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Acer_Saccharum. — just pretend the sun has a red dwarf binary companion and stick the unstable solar system around it
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[Principia] pleroy opened pull request #2410: Move the tag to the end of the Frame template parameter list - https://git.io/JeQPS
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[Principia] eggrobin labeled pull request #2410: Move the tag to the end of the Frame template parameter list - https://git.io/JeQPS
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[Principia] pleroy closed pull request #2410: Move the tag to the end of the Frame template parameter list - https://git.io/JeQPS
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[Principia] pleroy pushed 3 commits to master [+0/-0/±94] https://git.io/JeQDZ
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[Principia] pleroy 531edb2 - Move the tag at the end of the Frame template parameter list.
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[Principia] pleroy f544a85 - Merge pull request #2410 from pleroy/SimplerFrames4 Move the tag to the end of the Frame template parameter list
<discord->
egg. — @lamont we already have a DoublePrecision<double>, if we start nesting that things get hairy
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egg. — @bofh453 have you found any useful bounds on that?
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lamont. — yeah what i'm saying though is you should do physics on objects in the SOI of the sun using the sun as the origin and normalizing distances in roughly AU and velocities by the velocity of the earth. then the same for anything in the orbit of alpha centauri with the origin at the barycenter of that system. that avoids kraken roundoff errors due to floating point. then separately track the relativ
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egg. — @lamont yeah the precision is sortable
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egg. — @lamont the need for insane timewarp is not though
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egg. — you still need to integrate the motion of Io (or worse, your LEO sats), which bounds how fast you warp
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lamont. — relativistic physics and 8g torchdrives
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Skylar. — @egg *see? I T O L D you... smh*
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Skylar. — seriously tho I think someone is/is going to soon work on some nuclear engines and the such, so, eventually it might be possible if your nuts like me