G33X Nexus Entertainment > Bug Reports

Bug Reports For v0.3.1 alpha

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Rosencrantz:
Possible bug: High energy interactions between the ship and the flying utility tool  :D seem to not conserve energy properly.

Things seem to work out at lower energies, and at higher energies when the tool is stationary. But if the tool is rotating and spinning then it seems to gain and lose energy in unexpected ways after interactions.

Idea: Add some sort of command that prints various energies to stderr or to a file. Total energy, linear and rotational energies about x. y, and z. Also, do that for both the players ship and the targeted ship.  In addition to those energies have a running net on each axis for what has been added by the user.

Morgul:
Well, this is a major bug, and we're not sure why it's acting the way it is. In out physics engine, collision is handled completely, and acurately, however, for some reason all the map objects have a fixed center point. So, things only rotate... since the center position can't move. We're working on fixing this... (We've not figured out what we're forgetting to do to let it's position update.)

--Chris

Rosencrantz:
Hmmm. Well the inaccuracy of the rotational dynamics could be a related the fixed center point problem. Anyway, if you want some examples of some of the reactions that I'm talking about start spinning some of the larger asteroids really fast. When they collide, they do so correctly, but occasionally do really weird things.

Side note: I just realized this also could be related to how the time sensitive the collision detection algorithm is. Which could cause some of these issues.

Morgul:

--- Quote from: "Rosencrantz" ---Hmmm. Well the inaccuracy of the rotational dynamics could be a related the fixed center point problem. Anyway, if you want some examples of some of the reactions that I'm talking about start spinning some of the larger asteroids really fast. When they collide, they do so correctly, but occasionally do really weird things.
--- End quote ---


I bet all the things you're noticing are related to this problem. It's a pretty odd thing to have something free to rotate, but not translate...


--- Quote from: "Rosencrantz" ---Side note: I just realized this also could be related to how the time sensitive the collision detection algorithm is. Which could cause some of these issues.
--- End quote ---


THe collision detection system is not longer time sensitive... in the sense that it doesn't matter hot fast the program's running. (I don't know if that change got into the current release or not. I think it did.) It is time sensitive in the fact that it must take time into consideration when it does the calculations :-P ;-)

woodspider:
ok i am getting : the installer you are trying to use is corrupted or incomplete. this could be result of damaged disk, a failed download or virus. you may want to contact the author of this installer to obtain a new copy. it may be possible to skip the check using the /ncrc command line switch(not recommended) well that is the error i am getting. any suggestions?

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