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sample wip

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mischa 2024-02-23 17:57:23 +01:00
parent 5f9b5afb0a
commit 75faf5e15d
1 changed files with 30 additions and 2 deletions
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32
Assets/Mirror/Components/LagCompensation/LagCompensator.cs
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@ -1,5 +1,6 @@
// Add this component to a GameObject with collider. // Add this component to a Player object with collider.
// Automatically keeps a history for lag compensation. // Automatically keeps a history for lag compensation.
using System;
using System.Collections.Generic; using System.Collections.Generic;
using UnityEngine; using UnityEngine;
@ -33,9 +34,10 @@ public static Capture3D Interpolate(Capture3D from, Capture3D to, double t) =>
public override string ToString() => $"(time={timestamp} pos={position} size={size})"; public override string ToString() => $"(time={timestamp} pos={position} size={size})";
} }
public class LagCompensator : MonoBehaviour public class LagCompensator : NetworkBehaviour
{ {
[Header("Components")] [Header("Components")]
[Tooltip("The collider to keep a history of.")]
public Collider col; // assign this in inspector public Collider col; // assign this in inspector
[Header("Settings")] [Header("Settings")]
@ -75,6 +77,32 @@ protected virtual void Capture()
LagCompensation.Insert(history, lagCompensationSettings.historyLimit, NetworkTime.localTime, capture); LagCompensation.Insert(history, lagCompensationSettings.historyLimit, NetworkTime.localTime, capture);
} }
// sample the history for a hit test
public virtual bool Sample(out Capture3D sample)
{
// never trust the client: estimate client time instead.
// https://developer.valvesoftware.com/wiki/Source_Multiplayer_Networking
// the estimation is very good. the error is as low as ~6ms for the demo.
double rtt = NetworkTime.rtt;
double estimatedTime = LagCompensation.EstimateTime(NetworkTime.localTime, rtt, NetworkClient.bufferTime);
// compare estimated time with actual client time for debugging
double error = Math.Abs(estimatedTime - client.localTimeline);
Debug.Log($"CmdClicked: serverTime={NetworkTime.localTime:F3} clientTime={client.localTimeline:F3} estimatedTime={estimatedTime:F3} estimationError={error:F3} position={position}");
// sample the history to get the nearest snapshots around 'timestamp'
if (LagCompensation.Sample(history, estimatedTime, lagCompensationSettings.captureInterval, out Capture3D resultBefore, out Capture3D resultAfter, out double t))
{
// interpolate to get a decent estimation at exactly 'timestamp'
sample = Capture3D.Interpolate(resultBefore, resultAfter, t);
return true;
}
else Debug.Log($"CmdClicked: history doesn't contain {estimatedTime:F3}");
sample = default;
return false;
}
protected virtual void OnDrawGizmos() protected virtual void OnDrawGizmos()
{ {
// draw history // draw history