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Offline khoel

Innocent Bystander





« Posted 2006-04-21 11:44:14 »

first of all, thanks for developing the SGS, and i hope the final licence will allow academic research to be made with this product... Smiley


to my topic; what would be the best way to send position updates between players in the SGS-environment? my initial idea was to use a quad tree on the server to check what players are in sight, and then forward position updates that arrive to the players in the same quad.

now the question is; should i do this manually (as in, the server will re-send the update messages), or should i create a channel for each quad that the players enter and leave and use broadcasting to send updates to all players in that quad space? (ignore cheating/security aspects for now)

i guess it all comes down to how you envisioned the use of the channels in SGS, how do they scale, etc. etc.

how does the broadcasting on a channel work? does it send all data through the server or does it use p2p between the clients?

thanks for any replies!
Offline Jeff

JGO Coder




Got any cats?


« Reply #1 - Posted 2006-04-23 20:51:22 »

Yup.  Good question.

Answer, you want to create a channel for each leaf on the quad tree and assign the players to them.

The reason is ebcause it is MUCH faster and scales MUCh better to do havey-volume communication across a channel ad directly between players then to involve the logic layer of the server.  The logic layer has to do a  lot more because it is preserving referentially integorus presistance  on that level..

Got a question about Java and game programming?  Just new to the Java Game Development Community?  Try my FAQ.  Its likely you'll learn something!

http://wiki.java.net/bin/view/Games/JeffFAQ
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