Is there a way to prevent performance loss when coliding with other vehicle?

[TheUnknownGuyFromRoR]

The issue is very well known- a massive performance loss when two vehicles are coliding. Is there a way to limit it? And will it need massive re-programming to work?

[Max98]

only_a_ptr found out that a vehicle A checks if it collides with B, but also B checks if it collides with A which is a problem.
I believe that this is going to be fixed.

[ohlidalp]

@TheUnknownGuyFromRoR : Yes, there is a way to limit it, and yes, it will need massive re-programming. I haven't analyzed the simulation code in depth, but here are some rough notes:

• Physics simulation in RoR is generally slow, the more N/B, the worse.
• When 2 vehicles get close, RoR launches detailed collision-detection, which takes it's toll.
• The bounding-box collision detection (detects whether vehicles are close) is pretty badly coded. This might be the reason why putting 3+ vehicles next to each other causes painful FPS death.
  I'm preparing to improve performance in this area, but right now I'm busy with 0.4.5

[ulteq]

This should be much less of a problem after: #466