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--- pjv:laboratoare:2025:a05 [2025/12/10 11:54]
alexandru.gradinaru
+++ pjv:laboratoare:2025:a05 [2025/12/10 12:46] (current)
alexandru.gradinaru [Cerinte]
@@ Line 32: / Line 32: @@
 ==== Cerinte =====
-Realizarea unui joc multiplayer de tip social:
+Realizarea unui joc multiplayer de tip social, prin folosirea/implementarea unui server multiplayer dedicat:
+  * Player avatar sincronizat la nivel de pozitie si animatii: minim 2 playeri/clienti
+  * Comunicare chat cu interfata grafica
-<hidden>
-  * Player avatar sincronizat la nivel de pozitie si animatii
-  * Comunicare chat sau voice
-  * Server multiplayer dedicat, implementare proprie
-</hidden>
@@ Line 45: / Line 45: @@
 ===== Documentatie text ======
+Pentru acest laborator vom folosi [[https://github.com/DarkRiftNetworking/DarkRift|DarkRift 2]], un server dedicat, modular, care implementeaza protocoale de comunicare ca TCP, UDP, dar si cu extensii pentru WebSocket sau RUDP.
+Pentru integrarea cu Unity, se poate folosi pachetul din Asset Store [[https://assetstore.unity.com/packages/tools/network/darkrift-networking-2-95309|DarkRift Networking 2]]
 ==== Server dedicat =====
-[[https://github.com/DarkRiftNetworking/DarkRift|DarkRift 2]] este un server dedicat, modular, care implementeaza protocoale de comunicare ca TCP, UDP, dar si cu extensii pentru WebSocket sau RUDP.
-Pentru integrarea cu Unity, se poate folosi pachetul din Asset Store [[https://assetstore.unity.com/packages/tools/network/darkrift-networking-2-95309|DarkRift Networking 2]]
 Folosind un server dedicat trebuie gestionate mai multe elemente:
@@ Line 56: / Line 57: @@
   * mesajele de update
-DarkRift foloseste un sistem modular, bazat pe plugin-uri C#, pentru implementarea serverului.
+DarkRift foloseste un sistem modular, astfel ca puteti programa mecanica serverului fie direct, fie bazat pe plugin-uri C#, pentru a nu recompila la fiecare modificare tot serverul.
-Astfel, putem defini un plugin in felul urmator:
+Exemplu minimal:
 <code>
+using DarkRift;
+using DarkRift.Server;
+ServerSpawnData spawnData = ServerSpawnData.CreateFromXml("Server.config");
+var server = new DarkRiftServer(spawnData);
+void Client_MessageReceived(object? sender, MessageReceivedEventArgs e)
+{
+    using Message message = e.GetMessage();
+    using DarkRiftReader reader = message.GetReader();
+    Console.WriteLine("Received a message from the client: " + reader.ReadString());
+}
+void ClientManager_ClientConnected(object? sender, ClientConnectedEventArgs e)
+{
+    e.Client.MessageReceived += Client_MessageReceived;
+    using DarkRiftWriter writer = DarkRiftWriter.Create();
+    writer.Write("World of Hel!");
+    using Message secretMessage = Message.Create(666, writer);
+    e.Client.SendMessage(secretMessage, SendMode.Reliable);
+}
+server.ClientManager.ClientConnected += ClientManager_ClientConnected;
+server.StartServer();
+Console.ReadKey(); // Wait until key press. Not necessary in Unity.
+</code>
+cu un sistem de configurare in XML
+<code>
+<?xml version="1.0" encoding="utf-8" ?>
+<!--
+  Configuring DarkRift server to listen at ports TCP 4296 and UDP 4297.
+-->
+<configuration xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="https://www.darkriftnetworking.com/DarkRift2/Schemas/2.3.1/Server.config.xsd">
+  <server maxStrikes="5" />
+  <pluginSearch/>
+  <logging>
+    <logWriters>
+      <logWriter name="ConsoleWriter1" type="ConsoleWriter" levels="trace, info, warning, error, fatal">
+        <settings useFastAnsiColoring="false" />
+      </logWriter>
+    </logWriters>
+  </logging>
+  <plugins loadByDefault="false"/>
+  <data directory="Data/"/>
+  <listeners>
+    <listener name="DefaultNetworkListener" type="BichannelListener" address="0.0.0.0" port="4296">
+      <settings noDelay="true" udpPort="4297" />
+    </listener>
+  </listeners>
+</configuration>
+</code>
+==== Client =====
+Pentru realizarea clientului puteti folosi direct pachetul din Asset Store [[https://assetstore.unity.com/packages/tools/network/darkrift-networking-2-95309|DarkRift Networking 2]]
+Exemplu de conectare si trimitere de mesaj simplu:
+<code>
+using DarkRift;
+using DarkRift.Client;
+using System.Net;
+var client = new DarkRiftClient();
+void Client_MessageReceived(object? sender, MessageReceivedEventArgs e)
+{
+    using Message message = e.GetMessage();
+    using DarkRiftReader reader = message.GetReader();
+    Console.WriteLine("Received a message from the server: " + reader.ReadString());
+}
+client.MessageReceived += Client_MessageReceived;
+client.Connect(IPAddress.Loopback, tcpPort:4296, udpPort:4297, noDelay:true);
+Console.WriteLine("Connected!");
+using DarkRiftWriter writer = DarkRiftWriter.Create();
+writer.Write("Hello world!");
+using Message secretMessage = Message.Create(1337, writer);
+client.SendMessage(secretMessage, SendMode.Reliable);
+Console.ReadKey(); // Wait until key press. Not necessary in Unity.
+</code>
+Puteti folosi tag-uri pentru a delimita diverse tipuri de mesaje.
+De exemplu pentru actualizare de miscare puteti folosi tagul 1 si pentru chat puteti folosi tag-ul 10
+Exemplu de trimitere mesaj de chat
+<code>
+    //This will be called when the user presses enter in the input field
+    public void MessageEntered()
+    {
+        //Check we have a client to send from
+        if (client == null)
+        {
+            Debug.LogError("No client assigned to Chat component!");
+            return;
+        }
+        //First we need to build a DarkRiftWriter to put the data we want to send in, it'll default to Unicode
+        //encoding so we don't need to worry about that
+        using (DarkRiftWriter writer = DarkRiftWriter.Create())
+        {
+            //We can then write the input text into it
+            writer.Write(input.text);
+            //Next we construct a message, in this case we can just use a default tag because there is nothing fancy
+            //that needs to happen before we read the data.
+            using (Message message = Message.Create(10, writer))
+            {
+                //Finally we send the message to everyone connected!
+                client.SendMessage(message, SendMode.Reliable);
+            }
+        }
+    }
+</code>
+Pentru actualizare miscarii, trebuie sa tinem cont de ficare client in parte:
+  * trimtem actualizari de la input doar pentru clientul curent
+<code>
+void UpdateNetworkPosition() {
+        if (
+            Vector3.Distance(lastPosition, transform.position) > moveDistance ||
+            Vector3.Distance(lastRotation, transform.eulerAngles) > moveDistance
+            )
+        {
+            using (DarkRiftWriter writer = DarkRiftWriter.Create())
+            {
+                writer.Write(transform.position.x);
+                writer.Write(transform.position.y);
+                writer.Write(transform.position.z);
+                writer.Write(transform.eulerAngles.x);
+                writer.Write(transform.eulerAngles.y);
+                writer.Write(transform.eulerAngles.z);
+                using (Message message = Message.Create(1, writer))
+                    Client.SendMessage(message, SendMode.Unreliable);
+            }
+            lastPosition = transform.position;
+            lastRotation = transform.eulerAngles;
+        }
+    }
+</code>
+  * instantiem diferit playerii: unul controlabil din input local, pentru clientul curent, si ceilalti doar sincronizati la actualizarile din server
+<code>
+void SpawnPlayer(object sender, MessageReceivedEventArgs e)
+    {
+        using (Message message = e.GetMessage())
+        using (DarkRiftReader reader = message.GetReader())
+        {
+            if (message.Tag == 0)
+            {
+                while (reader.Position < reader.Length)
+                {
+                    ushort id = reader.ReadUInt16();
+                    Vector3 position = new Vector3(reader.ReadSingle(), reader.ReadSingle(), reader.ReadSingle());
+                    Vector3 euler = new Vector3(reader.ReadSingle(), reader.ReadSingle(), reader.ReadSingle());
+                    GameObject obj;
+                    if (id == client.ID)
+                    {
+                        // instantiate local user
+                        obj = Instantiate(localPrefab, position, Quaternion.identity) as GameObject;
+                    }
+                    else
+                    {
+                        // instantiate network user
+                        obj = Instantiate(networkPrefab, position, Quaternion.identity) as GameObject;
+                        //keep a list with all network players
+                        networkPlayerManager.Add(id, playObj);
+                    }
+                }
+            }
+        }
+    }
+</code>
+  * actualizam sincronizarile din server pentru toti playerii. Pentru asta in general avem nevoie sa tinem minte toata lista de clienti
+<code>
+Dictionary<ushort, NetworkPlayerObj> networkPlayers = new Dictionary<ushort, NetworkPlayerObj>();
+void MessageReceived(object sender, MessageReceivedEventArgs e)
+    {
+        using (Message message = e.GetMessage() as Message)
+        {
+            Debug.Log("network message ");
+            if (message.Tag == 1)
+            {
+                // Debug.Log("position message ");
+                using (DarkRiftReader reader = message.GetReader())
+                {
+                    ushort id = reader.ReadUInt16();
+                    Vector3 newPosition = new Vector3(reader.ReadSingle(), reader.ReadSingle(), reader.ReadSingle());
+                    Vector3 newEulerAngles = new Vector3(reader.ReadSingle(), reader.ReadSingle(), reader.ReadSingle());
+                    if (networkPlayers.ContainsKey(id))
+                    {
+                        // Debug.Log("new network position: "+newPosition);
+                        networkPlayers[id].movePosition = newPosition;
+                        networkPlayers[id].currentEulerAngles = newEulerAngles;
+                    }
+                }
+            }
+        }
+    }
+</code>
+==== Server Plugin =====
+Putem folosi si un plugin modificand in configurare in felul urmator:
+<code>
+  <!--
+    Specifies where DarkRift should look for plugins.
+  -->
+  <pluginSearch>
+    <pluginSearchPath src="Plugins/" createDir="true" />
+    <pluginSearchPath src="LogWriters/" />
+    <pluginSearchPath src="NetworkListeners/" />
+  </pluginSearch>
+   <plugins loadByDefault="true">
+    <!-- Example:
+    <plugin type="Sniffer" load="false" />
+    -->
+  </plugins>
+</code>
+In acest caz veti face un proiect separat pentru plugin si il veti compila intr-un dll, care va fi pus/actualizat in folderul de Plugins.
+<code>
+using DarkRift;
+using DarkRift.Server;
+using System;
+using System.Collections.Generic;
 public class NetPlugin : Plugin
 {
@@ Line 197: / Line 464: @@
     }
    </code>
+Pentru sincronizarea de animatii se poate proceda in mai multe feluri, in functie si de modul de gestiune al animatiilor:
+     * fie se trimite si un indicator de stare al animatiei si se sincornizeaza over network
+     * fie se folosesc valori de speed, hieght etc (calculate prin diferenta sau luate/transmise direct)
 ==== Chat =====

pjv/laboratoare/2025/a05.1765360446.txt.gz · Last modified: 2025/12/10 11:54 by alexandru.gradinaru

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