Networking Room List Help?

Questions & Answers
1

Hey I am currently working on making a room list for players to join. I have a bit of code that I combined together from multiple sources but is saying that object reference is not set to an instance of an object on the second line in the RefreshRoomListFunction. I do not know much about networking so I appreciate any help.

using System.Collections;
using System.Collections.Generic;
using UnityEngine.UI;
using UnityEngine.Networking;
using UnityEngine.Networking.Match;
using UnityEngine;

public class joinGame : NetworkBehaviour {

	List<GameObject> roomList = new List<GameObject>();
	private NetworkManager networkManager;
	[SerializeField]
	private GameObject roomListItemPrefab;
	[SerializeField]
	private Transform roomListParent;
	// Use this for initialization
	void Start () {
		networkManager = GetComponent<NetworkManager>();
		RefreshRoomList ();
	}
	
	// Update is called once per frame
	void Update () {
		
	}

	public void RefreshRoomList () {
		ClearRoomList ();
		networkManager.matchMaker.ListMatches (0, 20, "", true, 0, 0, networkManager.OnMatchList);
	}

	public void OnMatchList (bool success, string extendedInfo, List<MatchInfoSnapshot> matches) {
		foreach (var match in networkManager.matches) {
			GameObject _roomlistItemGO = Instantiate (roomListItemPrefab);
			_roomlistItemGO.transform.SetParent (roomListParent);
			roomList.Add (_roomlistItemGO);
		}
	}
		
	void ClearRoomList () {
		for (int i = 0; i < roomList.Count; i++) {
			Destroy (roomList *);*

  •  }*

  •  roomList.Clear ();*
  • }*
    }
2

Try this:

     public void RefreshRoomList () {
         ClearRoomList ();

// OnMatchList insted of networkManager.OnMatchList

         networkManager.matchMaker.ListMatches (0, 20, "", true, 0, 0, OnMatchList );  
     }
 
     public void OnMatchList (bool success, string extendedInfo, List<MatchInfoSnapshot> matches) {

// Also, add this line

         networkManager.OnMatchList(success,extendedInfo);

         foreach (var match in networkManager.matches) {
             GameObject _roomlistItemGO = Instantiate (roomListItemPrefab);
             _roomlistItemGO.transform.SetParent (roomListParent);
             roomList.Add (_roomlistItemGO);
         }
     }