[MUD-Dev] Prediction (Was: Quake II has gone GPL)

[T o F]

On Wed, 2002-03-20 at 13:16, shren wrote:

> What seems to happen in most games I've played extensively is that
> either no collision detection is done, and A can run through B.
 
> Or that both the server and the client do collision detection, the
> server to determine exact position and the client for cosmetic
> reasons.  The client tries to make best guess decisions about
> where you can go, and show you going there, but if it ever makes
> an error the server overrides and snaps you to the correct place.
 
> In the case above, A would see on his screen himself entering the
> building, the server would note that A can't get inside the
> building, and the server tells the client to relocate A outside
> the building.
 
> I'm pretty sure you can see this effect by hopping on UO and
> having someone cast paralyze on you.  You'll be running along,
> you'll get paralyzed, and you'll snap back to the spot you were
> paralyzed at.

Thanx for all theses explanations.

Yeah, i saw it on most mmpg, even not massive ones. Two questions
are coming, according to me:

  - how many times would it happen ? if the network latency is
  correct, and the game is not too fast (we're speaking about
  PnP-rpg like, not diablo like:) it should not happen very
  often. When i saw these 'snaps', it was mostly because my
  connection was slowed down, very ponctually.  Actually it's again
  linked to server scaling...

  - is it so terrible ? The goal of the prediction is to make the
  game client-side more responsive. One or two bugs may be easily
  accepted if the game-desing is not only moving/fighting oriented.




_______________________________________________
MUD-Dev mailing list
MUD-Dev at kanga.nu
https://www.kanga.nu/lists/listinfo/mud-dev