Motion Value Wizard
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Erm… Why are you using 9.81m/s^2 when that’s only valid when in close proximity to the Earth’s surface?
The real gravitational constant is G = 6.67e-11 m^3 kg^-1 s^-2 used in the formula F=Gm1m2/r^2. Using the approximation F=mg is really poor when you’re trying to simulate space ships.
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Any force F = m*a and while I could have asked for the absolute acceleration with 1 being 1m/s², my software asks for the same but using the unit 9.81m/s² for on stats sheets for combat aircraft and the like they usually give the acceleration capacity in multiples of this value.
Mathematically there is no difference, physically neither, though physically using the SI unit 1m/s² for acceleration would have made more sense.
Anyway, simulating space ships there is only one reason to count in any gravitation and that would be if we could simulate any in FL. As long as we cannot, G is not earth gravitation but a unit of acceleration.No more comment on this in particular. It gives good results and that’s what it is about. It could be criticized this far more, for instance stating that indeed a more correct conventional standard value is 9.80665m/s². That’s not what it is made for
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Could you make a tutorial? Cause it’s a little bit foggy.
Edit : Sorry I din’t say please… So please.
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Thank you it surely will help us.
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Good philosophy, hat off, and tons of applause! Really well said!
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There is one idea I had, that included a code I am not familiar with. Precisely what I think of, is the option to load the compound file to be checked for the absolute HpPilot position (i.e. checking its coordinates and, if required, the offset of the part it is attached to). Optional this should stay, because if it isn’t every ship would have to have a HpPilot and that’s waste of all those modders’ time, who don’t want pilot models to be sitting in their battleship bridges.
Is anyone out there familiar to the compound configuration readout algorithms who would like to help me with this?
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Gisteron wrote:
Hm, I maybe should make it integrate the values directly to freelancer ini files… JONG, please, throw me a PM with questions you have - I can’t spot what might be missing in the readme, maybe I could help you better in interaction.Oh, I don’t know how to input the values to get I want.
Ex:
My ships mass is 400, and I don’t know how to input those values to get my ships values.
Sorry for my poor English.
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On a side note, stress testing the program myself (basically using it for very much its purpose, but extensively), I found a few bugs easy to play around but which definately must and will be fixed when i figure a new formula for angular motions. Please keep them in mind so far:
1 - The input of mass is interpreted as an integer, so any float values will give an error message.
2 - The angular values output field gives a spelling error that doesn’t quite crash freelancer or even cause a message in the FLSpew, but does affect motion unless corrected: It says “rotation_intertia” instead of “rotation_inertia”.
3 - For some reason in the list of functions under the linear calculation button I inattentively put also one requesting values from angular calculations. Since however the linear values are not affected by angular calculation, the float values in the cockpit offsets and calculation of angular values is merely a formality that by the version uploaded here must be done prior to linear calculations.
4 - Apparently the formula I have been working with for angular motions is imperfect. It takes into account linear accelerations during angular motion or rather motion around a different point. With slow accelerations and high cockpit radii (as on larger ships) the issue is insignificant; however the closer the cockpit gets to the pivot point the more the ship becomes immaneurverable which makes the values more or less useless. Technically there is a div by 0 error when the cockpit has a 0 radius for some axis.A new build including all the bug fixes will be available once i have combined and implemented a solution to problem #4. If anyone wishes to help me understanding the forces during rotation, their relation to newtonian linear physics and most importantly forces affecting a pilot in angular motion, you are certainly welcome to. Also, I am open to suggestions for additional features to be added in the next version.
