Factorio Forums

Multiplayer depends on prediction to let players see their own actions instantly instead of waiting for their actions to bounce between the client and the server.

The game predicts which dialogs the player has open on the screen. However, with bad latency there can be mispredictions of the dialogs resulting in windows opening and closing seemingly at random.

As such, I wonder, why does it even matter to the server what dialogs the client happen to have open? Just let the dialog run entirely on the client and validate the commands the dialog issues instead.

A lot of the time the dialog requires information about the game state that isn't available yet due to the other actions not being applied. But, a lot of the dialogs do run locally. That's why you can hit "e" and it opens without having to wait for the round-trip time.

Yes, it does open instantly. But then it closes again before finally opening a second time. It's wonky.

You claim that the dialogs use game state that isn't available "yet". Why not just predict that instead? Or even just go with slightly stale data. State rarely changes for the worse in dialogs.

That prediction is eventually difficult here, cause if another player changes that at the same time, your change can be overridden and you don't see that, cause you have already closed the requester...
Prediction is good for things like player-action.

henke37 wrote:Yes, it does open instantly. But then it closes again before finally opening a second time. It's wonky.

You claim that the dialogs use game state that isn't available "yet". Why not just predict that instead? Or even just go with slightly stale data. State rarely changes for the worse in dialogs.

No idea what you're talking about. It has never done that for me or anyone else I've watched play Multiplayer. Are you sure you're not pressing it twice?