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Valks-Games / Networking-Unity-Prototype-Deprecated

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Network can't keep up with updates when 3 clients are connected. #3

Open valkyrienyanko opened 5 years ago

valkyrienyanko commented 5 years ago

I have what might seem like a silly question, I have 4 clients each sending position xyz updates to the server every 100ms and the server sending all the player position data back to each and every client also every 100ms.

When there are 2 clients, everything is fine. When a 3rd comes in, the server or clients (don't know which) can't seem to keep up with all the updates and lag behind until all the clients eventually timeout.

Note that position updates are sent even if the same values exist. (E.g. if a client is staying still on the server, they are still sending the regular updates). So all clients are "moving" all the time.

What exactly is causing the timeout / lag?

Client

The client uses this built in Unity function to send data to the server. Position updates of the client are sent to the server. https://github.com/valkyrienyanko/Networking-Unity-Prototype/blob/0f0bf7ea4c90bbd04765f53a340f3c121233756a/Client/Assets/Scripts/Client.cs#L228-L245

The updates are sent every SEND_DELAY seconds. https://github.com/valkyrienyanko/Networking-Unity-Prototype/blob/0f0bf7ea4c90bbd04765f53a340f3c121233756a/Client/Assets/Scripts/Client.cs#L219-L226

Server

The server uses this built in Unity function to send data to the clients. https://github.com/valkyrienyanko/Networking-Unity-Prototype/blob/0f0bf7ea4c90bbd04765f53a340f3c121233756a/Server/Assets/Scripts/Server.cs#L193-L198

Position updates are sent to the clients from the server every SEND_DELAY seconds. https://github.com/valkyrienyanko/Networking-Unity-Prototype/blob/0f0bf7ea4c90bbd04765f53a340f3c121233756a/Server/Assets/Scripts/Server.cs#L51-L87

valkyrienyanko commented 5 years ago

Update

Clients only send data if their moving over a minimum difference for each movement update. Server only adds data of client if that client has moved to all other clients.

Obviously this improved performance drastically.