can anyone please tell me what are these three? i'm so confused with loader anime

i'm trying to make a multiplayer fps game and when I scripted launcher, it didn't work so I checked what was wrong and it was like this

---------------------------------------------------launcher script---------------------------------------------------------------

using System.Collections;

using System.Collections.Generic;

using UnityEngine;

using Photon.Pun;


namespace com.jack.Multiplayer

{


public class NewBehaviourScript : MonoBehaviourPunCallbacks

{

public void Awake()

{

PhotonNetwork.AutomaticallySyncScene = true;

Connect();

}


public override void OnConnectedToMaster()

{

Debug.Log("connected!");

Join();


base.OnConnectedToMaster();

}

public override void OnJoinedRoom()

{

StartGame();

base.OnJoinedRoom();

}



public override void OnJoinRoomFailed(short returnCode, string message)

{

create();


base.OnJoinRandomFailed(returnCode, message);

}

public void Connect()

{

Debug.Log("trying to connect");

PhotonNetwork.GameVersion = "0.0.0";

PhotonNetwork.ConnectUsingSettings();

}




public void Join()

{

PhotonNetwork.JoinRandomRoom();

}


public void create ()

{

PhotonNetwork.CreateRoom("");

}


public void StartGame()

{

if(PhotonNetwork.CurrentRoom.PlayerCount == 1)

{

PhotonNetwork.LoadLevel(1);

}

} }

}

------------------------------------------------end----------------------------------------------------------------------------------

please help with the 3 objects or script