HighGroundRoyaleFusion/Assets/_Third Party/Sample KCC/Scripts/PlayerManager.cs

using System;
using System.Collections.Generic;
using Fusion;
using UnityEngine;

namespace Example
{
	/// <summary>
	/// Helper class which iterates over list of active players (NetworkRunner.ActivePlayers) and call spawn/despawn callbacks on demand.
	/// It expects 1:1 mapping between a player connection (PlayerRef) and player object (network object with a component of type T).
	/// </summary>
	public static class PlayerManager<T> where T : SimulationBehaviour
	{
		private static List<PlayerRef> _tempSpawnPlayers   = new List<PlayerRef>();
		private static List<T>         _tempSpawnedPlayers = new List<T>();

		public static void UpdatePlayerConnections(NetworkRunner runner, Action<PlayerRef> spawnPlayer, Action<PlayerRef, T> despawnPlayer)
		{
			_tempSpawnPlayers.Clear();
			_tempSpawnedPlayers.Clear();

			// 1. Get all connected players, marking them as pending spawn.
			_tempSpawnPlayers.AddRange(runner.ActivePlayers);

			// 2. Get all player objects with component of type T.
			runner.GetAllBehaviours(_tempSpawnedPlayers);

			for (int i = 0; i < _tempSpawnedPlayers.Count; ++i)
			{
				T         player    = _tempSpawnedPlayers[i];
				PlayerRef playerRef = player.Object.InputAuthority;

				// 3. Remove PlayerRef of existing player object from pending spawn list.
				_tempSpawnPlayers.Remove(playerRef);

				// 4. If a player is not valid (disconnected) execute the despawn callback.
				if (runner.IsPlayerValid(playerRef) == false)
				{
					try
					{
						despawnPlayer(playerRef, player);
					}
					catch (Exception exception)
					{
						Debug.LogException(exception);
					}
				}
			}

			// 5. Execute spawn callback for all players pending spawn (recently connected).
			for (int i = 0; i < _tempSpawnPlayers.Count; ++i)
			{
				try
				{
					spawnPlayer(_tempSpawnPlayers[i]);
				}
				catch (Exception exception)
				{
					Debug.LogException(exception);
				}
			}

			// 6. Cleanup
			_tempSpawnPlayers.Clear();
			_tempSpawnedPlayers.Clear();
		}
	}
}