[ODE] Re: ODE on multiplayer games

[Mike Wuetherick]

can you do all physical simulations on the server-side and just sent the 
results to the clients?

Ruud van Gaal wrote:

> ...
> 
>>>It seems as if you either need to update -everything- at 
>>
>>once, causing
>>
>>>a freeze, or you need to update gradually
>>
>>I don't understand the difference between these.
> 
> 
> Problem is that collisions can lead to severely different states. For
> example, take a car sim: on one node, a car bounces of another and moves
> away. However, the node (in a client/server env) only controls 1 car;
> the other car is handled by some other node. The client's car collides
> and bounces back, but on the other car's node, the collision may not
> have happened yet, but the car has already bounced so never collides on
> that other node... Giving one-sided collisions.
> That's exactly the trouble I'm having currently, thinking of sending
> dContact's across the network to get the responses to match a bit, and
> see what happens.
> 
> Ruud
> 
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