For this lesson, we will teach you how to set up your paddle prefab so it is networked and synchronized with all connected clients. Now the first thing that we want to do is convert are paddle prefab into an object that can be instantiated across the network. Go to the prefabs folder that has are paddle prefab saved and we’re going to double click on are prefab which will open it up. The first thing that we need to do to network this object is to attach the Photon View component. With your prefab selected click on Add Component in the Inspector then search Photon and click on Photon View.
The next thing that we need to do is move this prefab to the Resources folder and you should already have the resources folder from importing are matchmaking add on. Drag the Paddle prefab from its current location to the PhotonPrefabs folder inside the Resources folder. This will make it so this object can now be spawned across the network.
Now let us change some code so that the paddle prefabs will be instantiated instead of the capsule object. To do this we will need to open the GameSetupController script. Once opened, find the line were we are instantiating the PhotonPlayer prefab. Change the string parameter so it will instantiate the paddle prefab instead. At this point both players’ paddles will be spawned in the same location to fix this we will need to make it so one of the paddles spawn at the rotation of 180 in the z-axis. We will do this based on if the player is the master client or not.
Unlock Code and Member Content
GameSetupController.cs
using Photon.Pun;
using System.IO;
using UnityEngine;
public class GameSetupController : MonoBehaviour
{
// This script will be added to any multiplayer scene
void Start()
{
CreatePlayer(); //Create a networked player object for each player that loads into the multiplayer scenes.
}
private void CreatePlayer()
{
Debug.Log("Creating Player");
if (PhotonNetwork.IsMasterClient)
{
PhotonNetwork.Instantiate(Path.Combine("PhotonPrefabs", "Paddle"), Vector3.zero, Quaternion.identity);
}
else
{
PhotonNetwork.Instantiate(Path.Combine("PhotonPrefabs", "Paddle"), Vector3.zero, Quaternion.Euler(new Vector3(0,0,180)));
}
}
}
using Photon.Chat;
using Photon.Pun;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
public class PhotonChatManager : MonoBehaviour, IChatClientListener
{
#region Setup
[SerializeField] GameObject joinChatButton;
ChatClient chatClient;
bool isConnected;
[SerializeField] string username;
public void UsernameOnValueChange(string valueIn)
{
username = valueIn;
}
public void ChatConnectOnClick()
{
isConnected = true;
chatClient = new ChatClient(this);
//chatClient.ChatRegion = "US";
chatClient.Connect(PhotonNetwork.PhotonServerSettings.AppSettings.AppIdChat, PhotonNetwork.AppVersion, new AuthenticationValues(username));
Debug.Log("Connenting");
}
#endregion Setup
#region General
[SerializeField] GameObject chatPanel;
string privateReceiver = "";
string currentChat;
[SerializeField] InputField chatField;
[SerializeField] Text chatDisplay;
// Start is called before the first frame update
void Start()
{
}
// Update is called once per frame
void Update()
{
if (isConnected)
{
chatClient.Service();
}
if (chatField.text != "" && Input.GetKey(KeyCode.Return))
{
SubmitPublicChatOnClick();
SubmitPrivateChatOnClick();
}
}
#endregion General
#region PublicChat
public void SubmitPublicChatOnClick()
{
if (privateReceiver == "")
{
chatClient.PublishMessage("RegionChannel", currentChat);
chatField.text = "";
currentChat = "";
}
}
public void TypeChatOnValueChange(string valueIn)
{
currentChat = valueIn;
}
#endregion PublicChat
#region PrivateChat
public void ReceiverOnValueChange(string valueIn)
{
privateReceiver = valueIn;
}
public void SubmitPrivateChatOnClick()
{
if (privateReceiver != "")
{
chatClient.SendPrivateMessage(privateReceiver, currentChat);
chatField.text = "";
currentChat = "";
}
}
#endregion PrivateChat
#region Callbacks
public void DebugReturn(DebugLevel level, string message)
{
//throw new System.NotImplementedException();
}
public void OnChatStateChange(ChatState state)
{
if(state == ChatState.Uninitialized)
{
isConnected = false;
joinChatButton.SetActive(true);
chatPanel.SetActive(false);
}
}
public void OnConnected()
{
Debug.Log("Connected");
joinChatButton.SetActive(false);
chatClient.Subscribe(new string[] { "RegionChannel" });
}
public void OnDisconnected()
{
isConnected = false;
joinChatButton.SetActive(true);
chatPanel.SetActive(false);
}
public void OnGetMessages(string channelName, string[] senders, object[] messages)
{
string msgs = "";
for (int i = 0; i < senders.Length; i++)
{
msgs = string.Format("{0}: {1}", senders[i], messages[i]);
chatDisplay.text += "\n" + msgs;
Debug.Log(msgs);
}
}
public void OnPrivateMessage(string sender, object message, string channelName)
{
string msgs = "";
msgs = string.Format("(Private) {0}: {1}", sender, message);
chatDisplay.text += "\n " + msgs;
Debug.Log(msgs);
}
public void OnStatusUpdate(string user, int status, bool gotMessage, object message)
{
throw new System.NotImplementedException();
}
public void OnSubscribed(string[] channels, bool[] results)
{
chatPanel.SetActive(true);
}
public void OnUnsubscribed(string[] channels)
{
throw new System.NotImplementedException();
}
public void OnUserSubscribed(string channel, string user)
{
throw new System.NotImplementedException();
}
public void OnUserUnsubscribed(string channel, string user)
{
throw new System.NotImplementedException();
}
#endregion Callbacks
}
Now that we have the spawning of our paddles figured out we need to synchronize the movement of the paddles across the network. To do this we first need to add the Photon Transform View component to our paddle prefab. With the prefab selected click Add Component, then with “photon” in the search field select Photon Transform View. You will want to make sure you are only syncing the Position of the paddle and then drag the Photon Transform View component into the Observable Components field of the Photon View.
- – Add Photon View and Photon Transform View components
- Sprite – No changes.
Now we need to make some changes to our PaddleController script so we are only controlling the paddle object if we are the owner. To do this add a PhotonView variable then use the IsMine value to check if you are the owner before calling the PaddleMovement function.
PaddleController.cs
using UnityEngine;
using Photon.Pun;
public class PaddleController : MonoBehaviour
{
private PhotonView myPV;
public string leftKey, rightKey;
public float speed;
private void Start()
{
myPV = GetComponent<PhotonView>();
}
void Update()
{
if (myPV.IsMine)
{
PaddleMovement();
}
}
void PaddleMovement()
{
if (Input.GetKey(leftKey) && transform.position.x > -4)
{
transform.Translate(Vector3.left * Time.deltaTime * speed, Space.World);
}
if (Input.GetKey(rightKey) && transform.position.x < 4)
{
transform.Translate(Vector3.right * Time.deltaTime * speed, Space.World);
}
}
}
using Photon.Chat;
using Photon.Pun;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
public class PhotonChatManager : MonoBehaviour, IChatClientListener
{
#region Setup
[SerializeField] GameObject joinChatButton;
ChatClient chatClient;
bool isConnected;
[SerializeField] string username;
public void UsernameOnValueChange(string valueIn)
{
username = valueIn;
}
public void ChatConnectOnClick()
{
isConnected = true;
chatClient = new ChatClient(this);
//chatClient.ChatRegion = "US";
chatClient.Connect(PhotonNetwork.PhotonServerSettings.AppSettings.AppIdChat, PhotonNetwork.AppVersion, new AuthenticationValues(username));
Debug.Log("Connenting");
}
#endregion Setup
#region General
[SerializeField] GameObject chatPanel;
string privateReceiver = "";
string currentChat;
[SerializeField] InputField chatField;
[SerializeField] Text chatDisplay;
// Start is called before the first frame update
void Start()
{
}
// Update is called once per frame
void Update()
{
if (isConnected)
{
chatClient.Service();
}
if (chatField.text != "" && Input.GetKey(KeyCode.Return))
{
SubmitPublicChatOnClick();
SubmitPrivateChatOnClick();
}
}
#endregion General
#region PublicChat
public void SubmitPublicChatOnClick()
{
if (privateReceiver == "")
{
chatClient.PublishMessage("RegionChannel", currentChat);
chatField.text = "";
currentChat = "";
}
}
public void TypeChatOnValueChange(string valueIn)
{
currentChat = valueIn;
}
#endregion PublicChat
#region PrivateChat
public void ReceiverOnValueChange(string valueIn)
{
privateReceiver = valueIn;
}
public void SubmitPrivateChatOnClick()
{
if (privateReceiver != "")
{
chatClient.SendPrivateMessage(privateReceiver, currentChat);
chatField.text = "";
currentChat = "";
}
}
#endregion PrivateChat
#region Callbacks
public void DebugReturn(DebugLevel level, string message)
{
//throw new System.NotImplementedException();
}
public void OnChatStateChange(ChatState state)
{
if(state == ChatState.Uninitialized)
{
isConnected = false;
joinChatButton.SetActive(true);
chatPanel.SetActive(false);
}
}
public void OnConnected()
{
Debug.Log("Connected");
joinChatButton.SetActive(false);
chatClient.Subscribe(new string[] { "RegionChannel" });
}
public void OnDisconnected()
{
isConnected = false;
joinChatButton.SetActive(true);
chatPanel.SetActive(false);
}
public void OnGetMessages(string channelName, string[] senders, object[] messages)
{
string msgs = "";
for (int i = 0; i < senders.Length; i++)
{
msgs = string.Format("{0}: {1}", senders[i], messages[i]);
chatDisplay.text += "\n" + msgs;
Debug.Log(msgs);
}
}
public void OnPrivateMessage(string sender, object message, string channelName)
{
string msgs = "";
msgs = string.Format("(Private) {0}: {1}", sender, message);
chatDisplay.text += "\n " + msgs;
Debug.Log(msgs);
}
public void OnStatusUpdate(string user, int status, bool gotMessage, object message)
{
throw new System.NotImplementedException();
}
public void OnSubscribed(string[] channels, bool[] results)
{
chatPanel.SetActive(true);
}
public void OnUnsubscribed(string[] channels)
{
throw new System.NotImplementedException();
}
public void OnUserSubscribed(string channel, string user)
{
throw new System.NotImplementedException();
}
public void OnUserUnsubscribed(string channel, string user)
{
throw new System.NotImplementedException();
}
#endregion Callbacks
}
