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  HELP:data/command flow of a MMO game  (Read 3376 times)
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Offline conscience

Junior Newbie





« Posted 2012-02-14 02:16:34 »

how does the datas/commands flows in one player to another the MMO game?

can anybody explain?.. thanks in advance
Offline sproingie

JGO Kernel


Medals: 202



« Reply #1 - Posted 2012-02-14 03:39:10 »

They put state in a database.  World of Warcraft uses Oracle.  EVE uses MS SQL Server.  SOE games use Postgres.  Sun had a project called Darkstar (now RedDwarf) that uses Berkeley DB.

Stuff that's happening live like combat is just in-memory and not at all special.

Offline conscience

Junior Newbie





« Reply #2 - Posted 2012-02-14 04:27:02 »

ah. thanks.

but still curious about the fetching and updating of the data/command in the server...
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Offline sproingie

JGO Kernel


Medals: 202



« Reply #3 - Posted 2012-02-14 04:54:06 »

Not too many MMO shops are forthcoming with their designs, but the EVE folks share quite a bit.  EVE is pretty atypical (it's mostly written in python!) but there's still interesting design insights in there:

http://highscalability.com/eve-online-architecture
Offline conscience

Junior Newbie





« Reply #4 - Posted 2012-02-14 07:19:48 »

thanks sir.. hope to release my MMO prototype in 4 months...
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