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  1. Thunder Chicken

    Humor Random Comments Thread

    I suppose it depends on which direction in time you travel?
  2. Thunder Chicken

    Humor Random Comments Thread

    I hope those are less fatal. I can't help but think of the unfortunate timing of the sound of that bang and the receipt of the text message, that must have caused a lot of confusion. The sound was easy to dismiss as some random ship noise as they received the text after it occurred. If they...
  3. Thunder Chicken

    Opinions on SLS?

    It's a mighty expensive way to dump SSMEs into the ocean. It really doesn't have a viable mission right now, never did IMO. Starship is showing a predilection for blowing up before it can even get to LEO, and that is the basis for SpaceX's HLS. The SLS program has been cancelled after a...
  4. Thunder Chicken

    Humor Random Comments Thread

    This is from a BBC documentary that shows video of the Oceangate Titan support ship control room. The sound of the sub implosion is heard as a slamming sound on the deck of the ship: https://www.bbc.com/news/articles/c5yg5qggvwjo
  5. Thunder Chicken

    News Changes to the SpaceX BFR rocket.

    I am on Firefox and can see @STS 's and other Xitter links fine, but they are blocked by default by Firefox and one needs to right click to allow them. I only see text from @GLS. I think it is something on GLS's end on how they are posting the links, not a Firefox thing. EDIT: I get this from...
  6. Thunder Chicken

    Project Das Fliewatüüt

    Your interest in this project is important to us. Thunder Chicken is currently not available to work on this project. But please stay on the thread, and Thunder Chicken will get moving on the project as soon as possible.
  7. Thunder Chicken

    News Roscosmos News

    If it lands in Australia, who would they fine for littering?
  8. Thunder Chicken

    Problem Sikorsky R4 in C++ (port from Lua)

    You're flying backwards at a very high speed. The derivative_error is based on local y velocity assuming that you are nearly stationary laterally relative to the horizon and just want to control vertical airspeed. You can try getting the y velocity coordinate in the horizontal reference frame...
  9. Thunder Chicken

    Problem Sikorsky R4 in C++ (port from Lua)

    https://www.codecademy.com/resources/docs/lua/strings/format
  10. Thunder Chicken

    Problem Sikorsky R4 in C++ (port from Lua)

    You need to either use proper Lua string formatting or simply put in the single variable that you want to see the output for. Lua syntax can be found on the internet if you look for it. That's how I figured it out.
  11. Thunder Chicken

    Problem Sikorsky R4 in C++ (port from Lua)

    You just type that in the main script in clbk_prestep or clbk_poststep and set the string equal to whatever you want to print out. No compiling needed. You then just fire up the scenario in Orbiter.
  12. Thunder Chicken

    Problem Sikorsky R4 in C++ (port from Lua)

    Can you post the Orbiter.log file when this occurs? The screen errors are not necessarily the originating errors, but something that failed because of another error. If you reload a scenario, sometimes if fails with spurious errors like this. Not sure exactly why this occurs, or if this is the...
  13. Thunder Chicken

    News Roscosmos News

    Hmm, going off this image and estimating roughly 1 meter diameter and 500 kg mass, the mean density works out to be slightly less than the density of water or seawater. But it's not exactly spherical and my diameter estimate is probably not correct, so it is difficult to say whether it will...
  14. Thunder Chicken

    News Roscosmos News

    Does anyone know the diameter of the lander pressure vessel, and if it was meant to be gas-tight on Venus? I am wondering if the density of the lander is low enough for it to float should it fall into the ocean. Terminal velocity is something like 160 mph, but the thing was designed to survive...
  15. Thunder Chicken

    Problem Sikorsky R4 in C++ (port from Lua)

    nil in Lua isn't the same as being equal to 0. nil means the variable is undefined. If rpm is properly defined in C++ you don't need the if loop at all. The following will suffice: rpm = rpm + 0.01*(rpm_comm-rpm)
  16. Thunder Chicken

    Problem Sikorsky R4 in C++ (port from Lua)

    rpm_comm is the commanded engine level. There is a following bit of code that lags the actual rpm: if rpm ~= nil then rpm = rpm + 0.01*(rpm_comm-rpm) else rpm = rpm_comm end You probably don't need to protect rpm from being nil.
  17. Thunder Chicken

    Problem Sikorsky R4 in C++ (port from Lua)

    It appears that you define the searchlight color in position 1 (and I'm not sure the vector notation is correct with the double brackets, but I am not so familiar with VECTOR3 in C++): VECTOR3 searchlightcol[1] = { {1,1,1} };//white but reference it in position 0...
  18. Thunder Chicken

    Project Universal Cars for Orbiter (UCFO) Development Thread

    Yep, that seems to be the issue. When creating the animations, anything that goes into the parent-child chain of animations needs to have its state initialized to 0 for the reference vectors in the transformations to behave as expected. I suppose that makes sense, because the first...
  19. Thunder Chicken

    Project Universal Cars for Orbiter (UCFO) Development Thread

    One thing that I did discover is that the initial state of the animations does affect the behavior of even the parent-child animations. For example, if you define an animation like this: anim_right_front_wheel_rotation = vi:create_animation(0) This basically says that the item to be animated...
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