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2
votes
1answer
69 views

RTS Lockstep: How to deal with high latency and packet drops?

In the lockstep RTS model, I understand how games can be made deterministic by sending across commands to run at designated frames in the future. Then, to keep everyone in sync, confirmations are sent ...
2
votes
0answers
29 views

Lockstep dealing with lag

I understand how properly connected clients in a lockstep model deal with lag but what about the lagger? How does the lagger know that he or she is lagging? Should I continuously ping the central ...
0
votes
1answer
48 views

In lockstep networking game, how to handle sudden lags and disconnection?

I am trying to implement a game similar to "Street Fighter" by using lockstep networking model so that two players can play remotely via Internet. I have read a lot of articles about lockstep ...
0
votes
1answer
97 views

Handling latency in realtime music/rhythm-based games

Suppose I am making a co-operative multiplayer music-based rhythm game -- two players, side by side, move their cursor/avatar left and right with their mouse and attempt to hit or dodge obstacles that ...
7
votes
3answers
472 views

How can I keep two racing players synchronised?

I am working on a Unity mobile game, much like a multiplayer version of Temple Run. I'm seeing a fluctuating network latency (generally 200-500ms) because of the mobile platform. The two player ...
4
votes
3answers
940 views

How long does it take for OpenGL to actually update the screen?

I have a simple OpenGL test app in C which draws different things in response to key input. (Mesa 8.0.4, tried with Mesa-EGL and with GLFW, Ubuntu 12.04LTS on a PC with NVIDIA GTX650). The draws are ...
1
vote
1answer
245 views

Client-side prediction and interpolation

Although my game uses a peer-to-peer model, I've still taken the approach of assigning each player to be a partial authority. What I mean by this is that each player acts as the "server" for a number ...
1
vote
0answers
113 views

How to perform game object smoothing in multiplayer games

We're developing an infrastructure to support multiplayer games for our game engine. In simple terms, each client (player) engine sends some pieces of data regarding the relevant game objects at a ...
5
votes
2answers
143 views

Which game logic should run when doing prediction for PNP state updates

We are writing a multiplayer game, where each game client (player) is responsible for sending state updates regarding its "owned" objects to other players. Each message that arrives to other (remote) ...
0
votes
2answers
185 views

How to handle player input in online game with ping jitter?

I'm currently working on an online game and basing my networking architecture around this Source Multiplayer Networking article. However, I'm a little stuck on how the user input works. The article ...
3
votes
1answer
281 views

How to properly do weapon cool-down reload timer in multi-player laggy environment?

I want to handle weapon cool-down timers in a fair and predictable way on both client on server. Situation: Multiple clients connected to server, which is doing hit detection / physics Clients ...
0
votes
1answer
209 views

Handling Latency in Multiplayer Shoot-em-ups

I had an idea for an architecture, and I was wondering if anyone has implemented something like this or has used AWS or some other service to help? I thought about using NodeJS + SocketIO to handle ...
4
votes
2answers
1k views

How to achieve smooth gameplay in a physics based multiplayer game? (2d)

I'm using cocos2d 2.0 and Gamekit for networking. I've got a server/client model. It works over wifi (local) and bluetooth. (Xcode 4.3, Objective C) Basically, there's a ball and 2 or more players. ...
5
votes
2answers
440 views

Triple buffering and jittering

John Carmack has a tweet: "Triple buffering adds latency and jitter; it should be avoided. The Answer is non-isochronous display updates." Can anyone explain what he meant by adds latency and ...
4
votes
1answer
755 views

XNA: Networking gone totally out of sync

I'm creating a multiplayer interface for a game in 2D some of my friends made, and I'm stuck with a huge latency or sync problem. I started by adapting my game to the msdn xna network tutorial and ...
2
votes
1answer
879 views

Real-time UDP multiplayer games: ping measurement?

In real-time multiplayer games that use UDP for the actual game (CS:S, UT, etc.), how is network latency (ping) measured? More specifically, how do you find out how long ago a UDP packet was sent? ...