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This commit is contained in:
Andras Schmelczer 2026-08-23 10:27:55 +01:00
commit 8f50ebdb97
1 changed files with 1842 additions and 3095 deletions
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17
frontend/src/scripts/helper/server-timeline.ts
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@ -6,35 +6,24 @@ const maxRateAdjustment = 0.25;
const resyncSeconds = 0.3;
/**
* Playback clock for streamed server state — renders interpolationDelaySeconds
* behind the server clock so a newer snapshot is usually available; the cursor
* adjusts its rate gently and only snaps after a long divergence.
*/
class ServerTimeline {
private cursor?: number;
private newestSnapshotTime?: number;
private sinceNewestSnapshot = 0;
private _snapshotTime = 0;
public get snapshotTime(): number {
return this._snapshotTime;
}
public snapshotTime = 0;
public get renderTime(): number {
return this.cursor ?? 0;
}
public onSnapshot(timestamp: number) {
this._snapshotTime = timestamp;
this.snapshotTime = timestamp;
if (this.newestSnapshotTime === undefined || timestamp > this.newestSnapshotTime) {
this.newestSnapshotTime = timestamp;
this.sinceNewestSnapshot = 0;
}
}
// Must be called with unscaled wall-clock time, even during the end-game
// slow motion: the slowdown is already baked into the snapshots.
public step(deltaTimeInSeconds: number) {
if (this.newestSnapshotTime === undefined) {
return;
@ -63,7 +52,7 @@ class ServerTimeline {
this.cursor = undefined;
this.newestSnapshotTime = undefined;
this.sinceNewestSnapshot = 0;
this._snapshotTime = 0;
this.snapshotTime = 0;
}
}