Fixed ship physics in Crucible.

[Black007Angel]

Status:

✅ Smooth movement

✅ Perfect synchronization

✅ Combat works

✅ No teleporting

✅ Drones fly and attack
Physics has been fixed in EvEmu Crucible.
No more teleporting, smooth movement, everything works as expected.

If anyone is interested in the changes, I can share the modified files.
Where should I upload them?

[V-Cyberpunk]

open pull request for everyone? would be the best :)

[jdhirst]

Yes please, open a PR so we can review the changes :)

[Black007Angel]

I forked the physics engine. I'll finish up the drones and post them later. I also reworked the bot's marketplace, so you can sell to it now. Sorry for my bad English.
P.s. Orbit is still unstable. There are errors somewhere in the vector translations and reflection planes. However, this is a native EVEmu bug that has been present since the original implementation. I haven't figured it out yet, but I'm working on it.

[V-Cyberpunk]

ccp, now fenris, released carbon engine open source. maybe helpful for your work? there is also destiny repo!
https://github.com/carbonengine

[Black007Angel]

The formulas are the same. It's Euler again, not Newton. The issue is with the coordinate transformation error along the axes and planes. Somewhere there's a swap — X Y Z and Z-Y X-Y, etc. I just haven't been able to pinpoint it yet.

[ZyenDomani]

just curious...i dont see where you really did much to the original code, except remove all my notes and added gfx rotation code to a headless server.
what did you fix, and how are you tracking "perfect synchronization"?
do you have screenshots or video using <.track> command to show server tracking with ship?

[V-Cyberpunk]

@ZyenDomani tested a bit this pr and i'm not very happy. ship still does the 180° turn at warp destination and doesn't see a really difference.

[ZyenDomani]

that's what i suspected. it's still my old code, with all the notes removed. ;)

[Black007Angel]

Physics and sync update

• Reworked physics for ships. NPCs, and drones - old Desteny, unblok commands.
• Fixed DeltaTime and removed incorrect dt limit
• Added 1Hz client sync for testing
• Fixed position sync with server (error reduced from ~270,000 km to <10 meters)
• Fixed ship speed calculations
• Added new commands Market: /bay and /sell (by name, not ID) - for Test.

To do: Warp needs additional work, Improve NPC and drone flight quality (currently using simplified physics from older versions — works but not smooth enough).

[jdhirst]

Would you mind marking #329 as WIP in this case so we can know when it would be a good time to review for merge?

[Black007Angel]

I have marked the PR as WIP. By the way, feel free to pull my branch, test it, and implement any necessary improvements or fixes (like warp physics or remaining float-to-double cleanups). If anyone wants to jump in and help, the project will move forward much faster. We don't have to wait for everything to be done by one person. I will catch up later to finish other parts.

[ZyenDomani]

i agree with the above comment. pull it and test. use .track to verify server vs client ship tracking. it should look like this.... https://youtu.be/8ui96bh6U6c?si=5rG7VCI_pY4nY8dV
cheers.

[Black007Angel]

Just to be clear: I am developing this code to make the server fully playable so that anyone can just fly around and kill NPCs, either alone or with friends. I'm not aiming for 100% perfect client replica, but I'm trying to get as close as possible for the sake of good gameplay. I will keep updating my fork based on this goal.
Also, please bear with me as I probably have quite a few mistakes in the software architecture and system design — the code itself is fine and works, but I am a complete beginner in programming. Please understand and forgive me! )))

[ZyenDomani]

just to be clear:
i wrote most of the code and notes you are changing. i understand the destiny physics more than anyone except the ccp devs that wrote it way back in the early 2000s.
i completely understand updating your fork how you see fit...that's exactly the same thing i did. i dont fault you for that.
this is james' branch, so he does what he sees fit to do; i will still comment, especially when i see claims i know to be false.

this codebase was playable when it was forked to evemu, and has been for almost 14 years.
i would suggest being more accurate in your descriptions and maybe explain why you removed notes that are intended to explain what the code is doing.
cheers, im out.

[Black007Angel]

I actually restored the header comments in my latest fix. I’m sorry for removing them initially. However, since part of the Destiny code was replaced with a different approach, the inline comments within those sections were naturally lost as well.I’m not demanding a merge; I was only asked to submit this. Anyone who wants to pull and test it is free to do so, and if not, I'm completely fine with that. I didn't mean to offend anyone. Cheers.