Server Authorized Movement Questions

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1

I did the points in the Server Authhoritive Setup section but I did not understand some points.

I wrote the parts mentioned in the documentation but I didn’t see the part about what to run and how to do it.

For example, if I have Input Authority in CoherenceInput in the script in the player, I send inputs.

Then the server, that is, the simulatorm, will take over the part of playing the character?

I created a PlayerMovementSimulator script for this and I think I need to check if there is a simulator and do something.

At this point, do I need to reach the character from the simulator script, capture the coherenceInput and move it according to the value there, if so, how do I do this?

Below I am attaching photos of the code and components including the whole setup.

using Coherence.Toolkit;
using Coherence.Toolkit.Bindings;
using System.Linq;
using UnityEngine;

public class PlayerMovement : MonoBehaviour
{
    private CoherenceInput _coherenceInput;
    private CoherenceSync _coherenceSync;

    private void Awake()
    {
        _coherenceInput = GetComponent<CoherenceInput>();
        _coherenceSync = GetComponent<CoherenceSync>();
        Binding positionBinding = _coherenceSync.Bindings.FirstOrDefault(c => c.Name == "position");
        positionBinding.predictionMode = Coherence.PredictionMode.InputAuthority;
        positionBinding.OnNetworkSampleReceived += DetectMisprediction;
    }

    private void DetectMisprediction(object sampleData, bool arg2, long arg3)
    {
        const float MispredictionThreshold = 3;

        var networkPosition = (Vector3)sampleData;
        var distance = (networkPosition - transform.position).magnitude;

        if (distance >= MispredictionThreshold)
        {
            transform.position = networkPosition;
        }
    }

    private void Update()
    {
        if (_coherenceSync.HasInputAuthority)
        {
            SendInputs();
        }
    }

    private void SendInputs()
    {
        Vector2 input = new Vector2(Input.GetAxis("Horizontal"), Input.GetAxis("Vertical"));
        _coherenceInput.SetAxis2D("Joystick",input);
    }

    private void ProcessInputs()
    {
        Vector2 input = _coherenceInput.GetAxis2D("Joystick");
        transform.Translate(input * Time.deltaTime * 10);
    }
}


using Coherence.Toolkit;
using UnityEngine;

public class PlayerMovementSimulator : MonoBehaviour
{
    private CoherenceBridge _bridge;
    private bool _isSimulator;
    private void Awake()
    {
        _bridge = FindObjectOfType<CoherenceBridge>();
        _isSimulator = _bridge.IsSimulatorOrHost;
    }

    private void Update()
    {
        if (_isSimulator)
        {

        }
    }
}

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2

It looks like you’re missing this block:

if (coherenceSync.HasStateAuthority || coherenceSync.HasInputAuthority)
    {
        ProcessInputs();
    }

Take a look at the Update function here: Server-authoritative setup | coherence Documentation

3

When I add the block and run the same setup, when I start the simulator, I can control the character born with the simulator, but the character in the editor cannot control itself because it has no state authoritiy.

But isn’t this what should happen anyway, I should be able to control it only with input authority while the state authority remains on the server side?

4

Are you assigning Input Authority to the client?

public void AssignNewInputAuthority(CoherenceClientConnection newInputOwner)
{
    var coherenceSync = GetComponent<CoherenceSync>();
    coherenceSync.TransferAuthority(newInputOwner.ClientId, AuthorityType.Input);
}