手把手带你使用Paint in 3D和Photon撸一个在线涂鸦画板

连接PUN2服务器

创建一个C#脚本命名为Launcher，再创建一个空的GameObject命名为LauncherGameObject，把C#脚本Launcher添加到LauncherGameObject中。

编辑C#脚本Launcher为如下内容：

using Photon.Pun;
using Photon.Realtime;
using UnityENGIne;

namespace One.More
{
    public class Launcher : MonoBehaviourPunCallBACks
    {
        #region Private Fields
        /// <sumMary>
        /// This client's version number. Users are separated from each other by gameVersion (which allows you to make breaking changes).
        /// </sumMary>
        String gameVersion = "1";
        /// <sumMary>
        /// Keep track of the current process. Since connection is asynchronous and is based on several callBACks from Photon,
        /// we need to keep track of this to properly adjust the behavior when we receive call BACk by Photon.
        /// Typically this is used for the OnConnectedToMaster() callBACk.
        /// </sumMary>
        bool isConnecTing;
        #endregion

        void Start()
        {
            this.Connect();
        }

        #region MonoBehaviourPunCallBACks CallBACks
        public override void OnConnectedToMaster()
        {
            Debug.Log("PUN Basics Tutorial/Launcher: OnConnectedToMaster() was called by PUN");
            // we don't want to do anything if we are not attempTing to join a room.
            // this case where isConnecTing is false is typically when you lost or quit the game, when this level is loaded, OnConnectedToMaster will be called, in that case
            // we don't want to do anything.
            if (isConnecTing)
            {
                // #Critical: The first we try to do is to join a potential exisTing room. If there is, good, else, we'll be called BACk with OnJoinRandomFailed()
                PhotonNetwork.JoinRandomRoom();
                isConnecTing = false;
            }
        }
        public override void OnDisconnected(DisconnectCause causE)
        {
            Debug.LogWarningFormat("PUN Basics Tutorial/Launcher: OnDisconnected() was called by PUN with reason {0}", causE);
            isConnecTing = false;
        }
        public override void OnJoinRandomFailed(short returnCode, String messagE)
        {
            Debug.Log("PUN Basics Tutorial/Launcher:OnJoinRandomFailed() was called by PUN. No random room available, so we create one.\nCalling: PhotonNetwork.CreateRoom");
            // #Critical: we failed to join a random room, maybe none exists or they are all full. No worries, we create a new room.
            PhotonNetwork.CreateRoom(null, new RoomOptions());
        }
        public override void OnJoinedRoom()
        {
            Debug.Log("PUN Basics Tutorial/Launcher: OnJoinedRoom() called by PUN. Now this client is in a room.");
        }
        #endregion

        #region Public Methods
        /// <sumMary>
        /// Start the connection process.
        /// - If already connected, we attempt joining a random room
        /// - if not yet connected, Connect this application instance to Photon Cloud Network
        /// </sumMary>
        public void Connect()
        {
            // we check if we are connected or not, we join if we are , else we initiate the connection to the server.
            if (PhotonNetwork.IsConnected)
            {
                // #Critical we need at this point to attempt joining a Random Room. If it fails, we'll get notified in OnJoinRandomFailed() and we'll create one.
                PhotonNetwork.JoinRandomRoom();
            }
            else
            {
                // #Critical, we must first and foremost connect to Photon Online Server.
                isConnecTing = PhotonNetwork.ConnectUsingSetTings();
                PhotonNetwork.GameVersion = gameVersion;
            }
        }
        #endregion
    }
}

这时候，就可以连接到连接PUN2服务器了，运行以后我们可以看到如下日志：