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How does the server send the current game state?
The classic scheme is that clients send inputs or actions to the server and the server sends the current game state to the clients. The server does not send the whole state but a filtered state with the entities that are around a player. It does that for three reasons.
What’s the best way to log game packets?
The most popular tool for this is WireShark. This is logging them at the network level so you get all the packets but you can limit which packets are logged by filtering by the port that the game uses. You cannot filter by process in WireShark, so anything that uses that port will be logged.
What are the protocols used in video games?
The protocols used by videos games are TCP and UDP. The game will open ports, the Operating System receives the packets and pipes them to the process with the correct port. The client and the server will both have sending and receiving functions for packets.
Can you send a shoot packet to a server?
Send the shoot packet spoof your coordinates, might work. The client may be authoritative over something that it shouldn’t be. The client would never send an “improper” value to the server, but we can using packets. Some features require too much logic and stuff to reverse. Sometimes you can just send a packet and you’ll get the same effect.
Why are custom protocols used in game networking?
For instance, there can be a stream for user inputs and another one for chat messages, thus if a chat message, which is nonurgent data, is lost, it will not slow down a trigger input, which is urgent. Or, the custom protocol can implement reliability in another way than TCP which is more efficient under video games assumption.
How are game data converted to network data?
Game related data is passed to the messaging layer (this could be anything that is game specific), where they are to be converted to network specific messages (which are then serialized to byte arrays). I’m looking for a way to be able to convert “game” data into “network” data, such that no strong coupling between these layers will exist.
What are the three components of game networking?
There are mainly three components in game networking: Transport protocol: how to transport the data between clients and the server? Application protocol: what to send from clients to the server and from the server to clients and in which format? Application logic: how to use the exchanged data to update clients and the server?