Which function for timestamp to sync clients

Development Programming & Scripting Multiplayer & Networking
, ,
1

Hi,

I would like to synchronize the moment when a player started casting a spell. Meaning when the server tells the client that a spell started, the client is already lagging behind, and I would like to make sure the clients account for that. So I would like to send from the server to client: “Hey the spell-cast started at Time XY” and the clients go “hey this was 200 ms ago, so the spell is already 10% finished”.

So which is the right C++ function for this purpose? I see there is GetGameTimeInSeconds, but does this one give identical results between clients and servers? Or is there another function I should use?

Thanks in advance

2

“GetServerWorldTimeSeconds” is the most accurate you’ll find in the engine. Yet it isn’t accurate enough for what you want to do. It can be off by a second or two in some instances.

You have to write your own Network clock for higher accuracy/syncing.

3

Thanks for the explanation and the link, looks promising! I will work this through and see if I can use it!