RandomPositionSpawner.cs

    using System;
    using System.Collections.Generic;
    using Unity.Netcode;
    using UnityEngine;
    using Random = UnityEngine.Random;
     
    [RequireComponent(typeof(NetworkManager))]
    public class RandomPositionPlayerSpawner : MonoBehaviour
    {
        NetworkManager m_NetworkManager;
     
        int m_RoundRobinIndex = 0;
     
        [SerializeField]
        SpawnMethod m_SpawnMethod;
     
        [SerializeField]
        List<Vector3> m_SpawnPositions = new List<Vector3>() { Vector3.zero };
     
        /// <summary>
        /// Get a spawn position for a spawned object based on the spawn method.
        /// </summary>
        /// <returns>?The spawn position.</returns>
        /// <exception cref="NotImplementedException"></exception>
        public Vector3 GetNextSpawnPosition()
        {
            switch (m_SpawnMethod)
            {
                case SpawnMethod.Random:
                    var index = Random.Range(0, m_SpawnPositions.Count);
                    return m_SpawnPositions[index];
                case SpawnMethod.RoundRobin:
                    m_RoundRobinIndex = (m_RoundRobinIndex + 1) % m_SpawnPositions.Count;
                    return m_SpawnPositions[m_RoundRobinIndex];
                default:
                    throw new NotImplementedException();
            }
        }
     
        private void Awake()
        {
            var networkManager = gameObject.GetComponent<NetworkManager>();
            networkManager.ConnectionApprovalCallback += ConnectionApprovalWithRandomSpawnPos;
        }
     
        void ConnectionApprovalWithRandomSpawnPos(NetworkManager.ConnectionApprovalRequest request, NetworkManager.ConnectionApprovalResponse response)
        {
            // Here we are only using ConnectionApproval to set the player's spawn position. Connections are always approved.
            response.CreatePlayerObject = true;
            response.Position = GetNextSpawnPosition();
            response.Rotation = Quaternion.identity;
            response.Approved = true;
        }
    }
     
    enum SpawnMethod
    {
        Random = 0,
        RoundRobin = 1,
    }