HighGroundRoyaleNetcode/Assets/Scripts/TimerScript.cs

using System;
using System.Collections;
using Unity.Multiplayer.Samples.Utilities;
using Unity.Netcode;
using UnityEngine;

public class TimerScript : NetworkBehaviour
{
    [SerializeField] private SynchronizedTimer timer;
    public ServerAdditiveSceneLoader serverAdditiveSceneLoader;
    public int timeInSeconds;


    private void OnEnable()
    {
        timer.OnTimerEnd += HandleTimerEnd;
    }

    private void OnDisable()
    {
        timer.OnTimerEnd -= HandleTimerEnd;
    }

    void Start()
    {
        if (timer != null)
        {
            Debug.Log("Timer started call sent");
            StartCoroutine(Starter());
        }
    }

    IEnumerator Starter()
    {
        yield return new WaitUntil(() => serverAdditiveSceneLoader.m_SceneState == ServerAdditiveSceneLoader.SceneState.Loaded);
        if (NetworkManager.Singleton.IsServer)
        {
            yield return new WaitForSeconds(2.5f);
            Debug.Log("Timer started call sent2");

            timer.StartTimerServer(timeInSeconds);
        }
    }

    private void HandleTimerEnd()
    {
        Debug.Log("Timer has ended!");
        if(IsServer)
            OnTimerEndClientRPC();
    }

    [Rpc(SendTo.NotOwner)]
    private void OnTimerEndClientRPC()
    {
        Debug.Log("OnTimerEndClientRPC called!");
        Scoreboard.Instance.FinalLeaderBoard();
    }
    
}