The old PUNKBUSTER check compared client-reported position to server
position and snapped the player back when latency made them diverge,
which felt like getting teleported under any real network conditions.
Replaces that with proper client-side prediction + reconciliation:
client tags each input with a sequence number and keeps an input
buffer; server tracks the last processed sequence and reports its
authoritative position via a per-user inputAck alongside each
worldUpdate. The client only corrects when the actual disagreement
exceeds what the unacked input time can explain — so steady-state
movement runs purely on local physics, and only genuine unexpected
events (collisions, being hit) trigger a smooth blend toward the
server state.
Includes adaptive threshold scaling so high-latency sessions don't
false-positive corrections during normal running.
When a user leaves the channel, some items need to be cleared of
their fingerprints (lastTouchedBy). This feature was broken
because it used the this.gameObjects pool which was no longer in
use.
The channel GameController now triggers an event to which all
items are subscribed to and if it is triggered, all items with that
users fingerprints clear themselves off those.
Fixes#170
