Call Function Only on Client, or Only on Server

[Rev0verDrive]

Multiplayer logic for sprinting is as follows.

This logic flow for the most part mirrors the crouch and jump logic found in character movement component (CMC).

Input → determine if you can do action → Do Action → RPC Server

Server → determine if you can do action → Do Action

Threads:

I create sprint movementm how replicate it to multiplayer?

The lag is caused by your client waiting on the server to make the change and replicate that to you. You have to apply the speed change to the client and then call the server to make the change. DO NOT MULTICAST CMC Movement Changes. Input → Can I change Speed! [TRUE] → Change speed on client → RPC Server Server → Can I change Speed [TRUE] → Change speed on server This is the simplest it gets. [image]

What is the best way to change player movement speed (multiplayer)

[image] [image] Here’s a simple Blueprint version of it using Rep_Notify enumerator (CharMoveSpeed). When you Set/Change a Rep_Notify variables value its OnRep Function is executed. I take advantage of this on the client to force calling the function by changing the value locally. I then call the server to run the flow logic to make its own determination.

How dynamic your character is determines the complexity of movement speed change logic.