LocalHostBootstrap.cs

using UnityEngine;
using UnityEngine.Networking;
using UnityEngine.SceneManagement;
using UnityEngine.Assertions;
using System.Collections;

public class LocalHostBootstrap : MonoBehaviour
{
	string _debugString;

	void Awake()
	{
		SceneManager.sceneLoaded += OnSceneLoaded;
	}

	void OnDestroy()
	{
		SceneManager.sceneLoaded -= OnSceneLoaded;
	}

	void OnSceneLoaded(Scene scene, LoadSceneMode mode)
	{
		if (scene.name == "battle")
		{
			if (NetworkManager.singleton == null)
				StartCoroutine(PauseAndSpawnNetwork());
		}
	}

	IEnumerator PauseAndSpawnNetwork()
	{
		yield return new WaitForEndOfFrame();
		var networkManagerGO = Util.InstantiateFromResource ("SimpleNetwork");
		NetworkManager networkManager = networkManagerGO.GetComponent<NetworkManager> ();
		networkManager.onlineScene = SceneManager.GetActiveScene().name;
		networkManager.StartHost ();
	}
}