Breaking: Rpc Prediction

[garrynewman]

A lot of people find the Prediction.Off stuff confusing so I'm trying to fix it. So now instead of ignoring all RPCs that the server creates during a prediction tick, we'll keep a memory of the RPCs we predicted and only supress the ones in that history.

Good Prediction

So here's an example of good prediction. The decal is created clientside and the serverside version is supressed.

s.box.2021-08-03.17-15-01-twitter.mp4

Bad Prediction

Here's an example with the bullet spread unseeded. You can see we create the client predicted decal, but the server predicted decal is created too - because the RPC call didn't match one in our prediction history for that tick.

s.box.2021-08-03.17-19-10-twitter.mp4

Sounds and Particles

Sounds and particles aren't part of this pass yet but I imagine that we can do the same thing for them as we're doing here.