I am implementing a pretty straightforward client/server multiplayer architecture with Socket.IO and am having an issue where my client framerate seems to be faster than the servers. I have both interval loops set at
1000 / 30 yet they quickly diverge, even on my local machine. The code is simple in the example (just increase
position.x by a constant on each tick), so there is no heavy computation that should slow it down. I expect them to be off but I don't expect this distance to increase over time.
Is this minor tick difference something that's inescapable? I can do server reconciliation but there is snapping every few seconds. This is how it looks without any reconciliation:
(red is the client, blue is the server)
I know there is an alternative implementation where I would multiply the constant (which is added to position) by the timestep on each frame, thereby syncing the two. This actually more or less works, but the problem with that approach is that the game logic I am implementing has the players moving on a fixed/precise grid, and when the position updates by long floats this is difficult to enforce.
Link to full example code: here.