[ODE] Determinism

[Flavien Brebion]

I have implemented a "replay" feature in my racing game. To limit the amount
of collected data, i just store the initial state of the game, and play back
all
the player input at the correct times.

It seems to work pretty well. Something i have noticed is that the results
differ
from a debug or a release build; but i can live with that. After a good two
minutes of game playback, the entities positions in ODE are exactly the same
than what they were during the game.

Haven't tested on different computers though.

F. Brebion



-----Original Message-----
From: ode-bounces at q12.org [mailto:ode-bounces at q12.org]On Behalf Of
krejci.lukas at volny.cz
Sent: vendredi 24 octobre 2003 20:14
To: ode at q12.org
Subject: [ODE] Determinism


Hi,

Im designing multiplayer game driven mostly by ODE. The question
is: Are results alwayes the same when the same simulation with
identical input data is running on two different computers? (Or
on one computer twice)

Thanks for your help,
Lukas


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