Comments on: What every programmer needs to know about game networking http://gafferongames.com Glenn Fiedler's Game Development Articles and Tutorials Tue, 31 Jan 2012 03:56:23 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: Glenn Fiedler http://gafferongames.com/networking-for-game-programmers/what-every-programmer-needs-to-know-about-game-networking/#comment-36530 Glenn Fiedler Tue, 31 Jan 2012 03:56:23 +0000 http://gafferongames.com/?page_id=1309#comment-36530 There are cheating considerations, network model considerations (eg. if P2P lockstep then you don't gain anything... async, sure), also, bandwidth! There is much more data to upload and you'll find yourself being able to support less players with P2P than c/s. I'd recommend P2P for 4 or maybe 8 player games max. cheers There are cheating considerations, network model considerations (eg. if P2P lockstep then you don’t gain anything… async, sure), also, bandwidth! There is much more data to upload and you’ll find yourself being able to support less players with P2P than c/s. I’d recommend P2P for 4 or maybe 8 player games max. cheers

]]> By: Glenn Fiedler http://gafferongames.com/networking-for-game-programmers/what-every-programmer-needs-to-know-about-game-networking/#comment-36529 Glenn Fiedler Tue, 31 Jan 2012 03:55:01 +0000 http://gafferongames.com/?page_id=1309#comment-36529 It's clearly faster to go P2P, but much more complex than client/server - also, I need to know more about the type of game you are making to advise you on whether client/server or P2P is the way to go. cheers It’s clearly faster to go P2P, but much more complex than client/server – also, I need to know more about the type of game you are making to advise you on whether client/server or P2P is the way to go.

cheers

]]> By: MrShankly http://gafferongames.com/networking-for-game-programmers/what-every-programmer-needs-to-know-about-game-networking/#comment-36491 MrShankly Mon, 30 Jan 2012 23:09:36 +0000 http://gafferongames.com/?page_id=1309#comment-36491 Hi I have a question i hope you would be able to answer! If developing a multiplayer game where the main problem is network latency, would that suit a p2p architecture over client server as you are cutting out transmission to the "middle man"? Thanks! Hi I have a question i hope you would be able to answer!

If developing a multiplayer game where the main problem is network latency, would that suit a p2p architecture over client server as you are cutting out transmission to the “middle man”?
Thanks!

]]> By: What is involved in creating a real-time multiplayer platformer game? | Q&A System http://gafferongames.com/networking-for-game-programmers/what-every-programmer-needs-to-know-about-game-networking/#comment-34549 What is involved in creating a real-time multiplayer platformer game? | Q&A System Mon, 16 Jan 2012 08:10:29 +0000 http://gafferongames.com/?page_id=1309#comment-34549 [...] research up on online community online game programming which include content articles like What every programmer should know about online game networking and so I recognize the distinction among methods like Peer-to-Peer lockstep and Server-Client [...] [...] research up on online community online game programming which include content articles like What every programmer should know about online game networking and so I recognize the distinction among methods like Peer-to-Peer lockstep and Server-Client [...]

]]> By: Astrofighter.Net | Imphenzia Blog http://gafferongames.com/networking-for-game-programmers/what-every-programmer-needs-to-know-about-game-networking/#comment-20137 Astrofighter.Net | Imphenzia Blog Wed, 21 Sep 2011 23:02:32 +0000 http://gafferongames.com/?page_id=1309#comment-20137 [...] As I mentioned early on in this post, I’ve dedicated a lot of my time the past two weeks when I started a real stab at creating a game in Unity. I am amazed at how fast I am able to make progress in Unity being such a novice at it. In just a matter of two weeks, Unity has enabled me to create the basic foundation of space combat game that already supports server side authoritative network multiplayer with client side prediction. [...] [...] As I mentioned early on in this post, I’ve dedicated a lot of my time the past two weeks when I started a real stab at creating a game in Unity. I am amazed at how fast I am able to make progress in Unity being such a novice at it. In just a matter of two weeks, Unity has enabled me to create the basic foundation of space combat game that already supports server side authoritative network multiplayer with client side prediction. [...]

]]> By: Live0les http://gafferongames.com/networking-for-game-programmers/what-every-programmer-needs-to-know-about-game-networking/#comment-20114 Live0les Wed, 21 Sep 2011 14:59:20 +0000 http://gafferongames.com/?page_id=1309#comment-20114 ThanksXD I think a team full of cheaters....OWN-ED! ....XD ThanksXD
I think a team full of cheaters….OWN-ED! ….XD

]]> By: Glenn Fiedler http://gafferongames.com/networking-for-game-programmers/what-every-programmer-needs-to-know-about-game-networking/#comment-19869 Glenn Fiedler Sat, 17 Sep 2011 11:56:00 +0000 http://gafferongames.com/?page_id=1309#comment-19869 many games actually do this, but consider -- what if the cheater was smart and just moved a tiny bit faster over a few seconds, or if just dodged only at the right time to avoid a bullet, but this dodge was small enough that it seemed like a bit of lag? the trick with the client side prediction / rewind replay is that it makes the server completely authoritative so this sort of cheat can be detected, while heuristics + voting can only detect blatant cheating and must have some amount of tolerance, since the game is not perfectly synchronized also, consider what happens if you have a team full of cheaters? now you have one team all with hacked clients voting that the other team are cheaters. who do you believe? :) many games actually do this, but consider — what if the cheater was smart and just moved a tiny bit faster over a few seconds, or if just dodged only at the right time to avoid a bullet, but this dodge was small enough that it seemed like a bit of lag?

the trick with the client side prediction / rewind replay is that it makes the server completely authoritative so this sort of cheat can be detected, while heuristics + voting can only detect blatant cheating and must have some amount of tolerance, since the game is not perfectly synchronized

also, consider what happens if you have a team full of cheaters? now you have one team all with hacked clients voting that the other team are cheaters. who do you believe? :)

]]> By: Liveoles http://gafferongames.com/networking-for-game-programmers/what-every-programmer-needs-to-know-about-game-networking/#comment-19589 Liveoles Tue, 13 Sep 2011 14:08:05 +0000 http://gafferongames.com/?page_id=1309#comment-19589 Hello, you help me a lot! However, I have an idea on "here is my position"thing... Say in counterstrike, there should be at least 8 people to form a good match, say one of them is a cheat, and it uses teleportion hack, why can't I implement a client check in all 8 client, even the cheater closes it, the other 7 players will be able to calculate the position and the previous position, if it is larger than 15 or so, it sends a violation warning to the server, when the server receives more than say like 5 violation warnings, it start a vote ban thing, and that will be a client-server cooperated cheat detection system! Please direct me if I am wrong, I am new to networking. Thanks. Hello, you help me a lot!
However, I have an idea on “here is my position”thing…
Say in counterstrike, there should be at least 8 people to form a good match, say one of them is a cheat, and it uses teleportion hack, why can’t I implement a client check in all 8 client, even the cheater closes it, the other 7 players will be able to calculate the position and the previous position, if it is larger than 15 or so, it sends a violation warning to the server, when the server receives more than say like 5 violation warnings, it start a vote ban thing, and that will be a client-server cooperated cheat detection system!
Please direct me if I am wrong, I am new to networking. Thanks.

]]> By: XDSK2 (XNA 4.0 Resources) « Nelxon http://gafferongames.com/networking-for-game-programmers/what-every-programmer-needs-to-know-about-game-networking/#comment-16810 XDSK2 (XNA 4.0 Resources) « Nelxon Wed, 10 Aug 2011 07:24:44 +0000 http://gafferongames.com/?page_id=1309#comment-16810 [...] General Game Networking – learn more building online multiplayer games [...] [...] General Game Networking – learn more building online multiplayer games [...]

]]> By: Sobre juegos online « martin b.r. http://gafferongames.com/networking-for-game-programmers/what-every-programmer-needs-to-know-about-game-networking/#comment-16006 Sobre juegos online « martin b.r. Thu, 28 Jul 2011 16:39:06 +0000 http://gafferongames.com/?page_id=1309#comment-16006 [...] por ultimo el clasico “Lo que todo programador de redes deberia saber” de Glenn Fiedler. AKPC_IDS += "781,";Popularity: [...] [...] por ultimo el clasico “Lo que todo programador de redes deberia saber” de Glenn Fiedler. AKPC_IDS += "781,";Popularity: [...]

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