Description
Networked dynamic physics objects.
I see two approaches.
1. P2P Object Ownership
This is the approach that I believe VRChat uses. When someone grabs an object they become the owner of the object, acting as a source of truth for it's location. Can be easily spoofed - letting them put the object anywhere - but should work fine enough.
2. Central Authority
We could have the host server act as the source of truth for object locations. This is more expensive for the server. How much the server validates player input could vary - from a hands-off full trust approach, to running a physics instance of the world, checking the movement of objects, player movements, and more to determine whether they are "cheating".
Thoughts
I like that the first approach imposes no cost on the server. I was interested in the central authority approach, but upon further reflection I'm not sure of any immediate use cases that would require it. Main thing I think of is some competitive game involving physics, whether objects or player movement, but it would take such an advanced setup to work effectively that I don't think its worth planning for now. Other competitive games, for example battleship, could still potentially run logic on the server (not sure yet, still need to figure out scripting), without the overhead of a full physics simulation.
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