Unity Photon Lag

- Solve the problem of lag and delay compensation with photon

 

Games in the video:

CHPlay
AppStore

Code:

using Photon.Pun;

using UnityEngine;

public class lammuot : MonoBehaviourPun,IPunObservable

{

   

 Vector3 latestPos;

    Quaternion latestRot;

    //Lag compensation

    float currentTime = 0;

    double currentPacketTime = 0;

    double lastPacketTime = 0;

    Vector3 positionAtLastPacket = Vector3.zero;

    Quaternion rotationAtLastPacket = Quaternion.identity;

public bool teleportIfFar;

public float teleportIfFarDistance;

[Header ("Lerping[Experimental]")]

public float smoothpos = 0.5f;

public float smoothRot = 0.5f;

void  Awake()

{

     PhotonNetwork.SendRate = 30;

    PhotonNetwork.SerializationRate = 10;

}

 

        public void OnPhotonSerializeView(PhotonStream stream, PhotonMessageInfo info)

    {

        if (stream.IsWriting)

        {

            stream.SendNext(transform.position);

            stream.SendNext(transform.rotation);

        }

        else

        {

            latestPos = (Vector3)stream.ReceiveNext();

            latestRot = (Quaternion)stream.ReceiveNext();

            //Lag compensation

            currentTime = 0.0f;

            lastPacketTime = currentPacketTime;

            currentPacketTime = info.SentServerTime;

            positionAtLastPacket = transform.position;

            rotationAtLastPacket = transform.rotation;

        }

    }

    void FixedUpdate()

    {

        if(photonView.IsMine) return;

       double timeToReachGoal = currentPacketTime - lastPacketTime;

            currentTime += Time.deltaTime;

            //Update remote player

            transform.position = Vector3.Lerp(positionAtLastPacket, latestPos,

(float)(currentTime / timeToReachGoal));

            transform.rotation = Quaternion.Lerp(rotationAtLastPacket, latestRot,

(float)(currentTime / timeToReachGoal));

        if(Vector3.Distance(transform.position,latestPos) > teleportIfFarDistance)

        {

            transform.position = latestPos;

        }

    }

}

Video