Started on spawning a player actor

src/Prospect.Unreal/Core/ENetRole.cs

@@ -0,0 +1,14 @@
+namespace Prospect.Unreal.Core;
+
+public enum ENetRole
+{
+    /** No role at all. */
+    ROLE_None,
+    /** Locally simulated proxy of this actor. */
+    ROLE_SimulatedProxy,
+    /** Locally autonomous proxy of this actor. */
+    ROLE_AutonomousProxy,
+    /** Authoritative control over the actor. */
+    ROLE_Authority,
+    ROLE_MAX,
+}

src/Prospect.Unreal/Net/Actors/AActor.cs

@@ -1,6 +1,35 @@
-namespace Prospect.Unreal.Net.Actors;
+using Prospect.Unreal.Core;
+
+namespace Prospect.Unreal.Net.Actors;
 
 public class AActor
 {
-    
+    /// <summary>
+    ///     Sets the value of Role without causing other side effects to this instance.
+    /// </summary>
+    public void SetRole(ENetRole inRole)
+    {
+        // TODO: Implement
+        throw new NotImplementedException();
+    }
+
+    /// <summary>
+    ///     Set whether this actor replicates to network clients. When this actor is spawned on the server it will be sent to clients as well.
+    ///     Properties flagged for replication will update on clients if they change on the server.
+    ///     Internally changes the RemoteRole property and handles the cases where the actor needs to be added to the network actor list.
+    /// </summary>
+    public void SetReplicates(bool bInReplicates)
+    {
+        // TODO: Implement
+        throw new NotImplementedException();
+    }
+
+    /// <summary>
+    ///     Sets whether or not this Actor is an autonomous proxy, which is an actor on a network client that is controlled by a user on that client.
+    /// </summary>
+    public void SetAutonomousProxy(bool bInAutonomousProxy, bool bAllowForcePropertyCompare = true)
+    {
+        // TODO: Implement
+        throw new NotImplementedException();
+    }
 }

src/Prospect.Unreal/Net/Actors/AController.cs

@@ -0,0 +1,6 @@
+namespace Prospect.Unreal.Net.Actors;
+
+public class AController : AActor
+{
+    
+}

src/Prospect.Unreal/Net/Actors/AGameModeBase.cs

@@ -1,4 +1,7 @@
-namespace Prospect.Unreal.Net.Actors;
+using Prospect.Unreal.Core;
+using Prospect.Unreal.Runtime;
+
+namespace Prospect.Unreal.Net.Actors;
 
 public class AGameModeBase : AInfo
 {
@@ -7,4 +10,16 @@ public class AGameModeBase : AInfo
         // Login unique id must match server expected unique id type OR No unique id could mean game doesn't use them
         errorMessage = null;
     }
+
+    public APlayerController? Login(UPlayer newPlayer, ENetRole inRemoteRole, string portal, string options, FUniqueNetIdRepl uniqueId, out string errorMessage)
+    {
+        errorMessage = string.Empty;
+        throw new NotImplementedException();
+        return null;
+    }
+
+    public void PostLogin(APlayerController newPlayer)
+    {
+        throw new NotImplementedException();
+    }
 }

src/Prospect.Unreal/Net/Actors/APlayerController.cs

@@ -1,6 +1,18 @@
-namespace Prospect.Unreal.Net.Player;
+using Prospect.Unreal.Runtime;
 
-public class APlayerController
+namespace Prospect.Unreal.Net.Actors;
+
+public class APlayerController : AController
 {
-    
+    /// <summary>
+    ///     Index identifying players using the same base connection (splitscreen clients)
+    ///     Used by netcode to match replicated PlayerControllers to the correct splitscreen viewport and child connection
+    ///     replicated via special internal code, not through normal variable replication
+    /// </summary>
+    public byte NetPlayerIndex { get; set; }
+
+    public void SetPlayer(UPlayer inPlayer)
+    {
+        throw new NotImplementedException();
+    }
 }

src/Prospect.Unreal/Net/UNetConnection.cs

@@ -8,7 +8,7 @@ using Prospect.Unreal.Net.Packets.Bunch;
 using Prospect.Unreal.Net.Packets.Control;
 using Prospect.Unreal.Net.Packets.Header;
 using Prospect.Unreal.Net.Packets.Header.Sequence;
-using Prospect.Unreal.Net.Player;
+using Prospect.Unreal.Runtime;
 using Prospect.Unreal.Serialization;
 using Serilog;
 
@@ -240,6 +240,11 @@ public abstract class UNetConnection : UPlayer
     /// </summary>
     public string ClientResponse { get; set; }
     
+    /// <summary>
+    ///     URL requested by client
+    /// </summary>
+    public string RequestURL { get; set; }
+    
     /// <summary>
     ///     The last time an ack was received
     /// </summary>

src/Prospect.Unreal/Runtime/UPlayer.cs

@@ -1,4 +1,6 @@
-namespace Prospect.Unreal.Net.Player;
+using Prospect.Unreal.Net.Actors;
+
+namespace Prospect.Unreal.Runtime;
 
 public class UPlayer
 {

src/Prospect.Unreal/Runtime/UWorld.LevelActor.cs

@@ -0,0 +1,53 @@
+using System.Text;
+using Prospect.Unreal.Core;
+using Prospect.Unreal.Net;
+using Prospect.Unreal.Net.Actors;
+
+namespace Prospect.Unreal.Runtime;
+
+public partial class UWorld
+{
+    private APlayerController? SpawnPlayActor(UPlayer newPlayer, ENetRole remoteRole, FUrl inURL, FUniqueNetIdRepl uniqueId, out string error, byte inNetPlayerIndex = 0)
+    {
+        error = string.Empty;
+        
+        // Make the option string.
+        var optionsBuilder = new StringBuilder();
+        
+        foreach (var op in inURL.Options)
+        {
+            optionsBuilder.Append('?');
+            optionsBuilder.Append(op);
+        }
+
+        var options = optionsBuilder.ToString();
+
+        var gameMode = GetAuthGameMode();
+        if (gameMode != null)
+        {
+            var newPlayerController = gameMode.Login(newPlayer, remoteRole, inURL.Portal, options, uniqueId, out error);
+            if (newPlayerController == null)
+            {
+                Logger.Warning("Login failed: {Error}", error);
+                return null;
+            }
+            
+            // Logger.Debug("{A} got player {B} [{C}]", newPlayerController);
+            
+            // Possess the newly-spawned player.
+            newPlayerController.NetPlayerIndex = inNetPlayerIndex;
+            newPlayerController.SetRole(ENetRole.ROLE_Authority);
+            newPlayerController.SetReplicates(remoteRole != ENetRole.ROLE_None);
+            if (remoteRole == ENetRole.ROLE_AutonomousProxy)
+            {
+                newPlayerController.SetAutonomousProxy(true);
+            }
+            newPlayerController.SetPlayer(newPlayer);
+            gameMode.PostLogin(newPlayerController);
+            return newPlayerController;
+        }
+        
+        Logger.Warning("Login failed: No game mode set");
+        return null;
+    }
+}

src/Prospect.Unreal/Runtime/UWorld.cs

@@ -1,3 +1,4 @@
+using System.Text;
 using Prospect.Unreal.Core;
 using Prospect.Unreal.Core.Names;
 using Prospect.Unreal.Exceptions;
@@ -10,7 +11,7 @@ using Serilog;
 
 namespace Prospect.Unreal.Runtime;
 
-public abstract class UWorld : FNetworkNotify, IAsyncDisposable
+public abstract partial class UWorld : FNetworkNotify, IAsyncDisposable
 {
     private static readonly ILogger Logger = Log.ForContext<UWorld>();
 
@@ -203,27 +204,28 @@ public abstract class UWorld : FNetworkNotify, IAsyncDisposable
                 case NMT.Login:
                 {
                     // Admit or deny the player here.
-                    if (NMT_Login.Receive(bunch, out var clientResponse, out var requestUrl, out var uniqueIdRepl, out var onlinePlatformName))
+                    if (NMT_Login.Receive(bunch, out var clientResponse, out var tmpRequestUrl, out var uniqueIdRepl, out var onlinePlatformName))
                     {
                         connection.ClientResponse = clientResponse;
+                        connection.RequestURL = tmpRequestUrl;
                         
                         // Only the options/portal for the URL should be used during join
-                        var newRequestUrl = requestUrl;
+                        var newRequestUrl = connection.RequestURL;
                         
-                        var oneIndex = requestUrl.IndexOf('?');
-                        var twoIndex = requestUrl.IndexOf('#');
+                        var oneIndex = newRequestUrl.IndexOf('?');
+                        var twoIndex = newRequestUrl.IndexOf('#');
 
                         if (oneIndex != -1 && twoIndex != -1)
                         {
-                            newRequestUrl = requestUrl.Substring(Math.Min(oneIndex, twoIndex));
+                            newRequestUrl = newRequestUrl.Substring(Math.Min(oneIndex, twoIndex));
                         } 
                         else if (oneIndex != -1)
                         {
-                            newRequestUrl = requestUrl.Substring(oneIndex);
+                            newRequestUrl = newRequestUrl.Substring(oneIndex);
                         } 
                         else if (twoIndex != -1)
                         {
-                            newRequestUrl = requestUrl.Substring(twoIndex);
+                            newRequestUrl = newRequestUrl.Substring(twoIndex);
                         }
                         else
                         {
@@ -244,8 +246,8 @@ public abstract class UWorld : FNetworkNotify, IAsyncDisposable
 
                         if (!inUrl.Valid)
                         {
-                            requestUrl = newRequestUrl;
-                            Logger.Error("NMT_Login: Invalid URL {Url}", requestUrl);
+                            connection.RequestURL = newRequestUrl;
+                            Logger.Error("NMT_Login: Invalid URL {Url}", connection.RequestURL);
                             bunch.SetError();
                             break;
                         }
@@ -256,10 +258,10 @@ public abstract class UWorld : FNetworkNotify, IAsyncDisposable
                         inUrl.Options.Remove("SplitscreenCount");
                         inUrl.Options.Add($"SplitscreenCount={splitscreenCount}");
 
-                        requestUrl = inUrl.ToString();
+                        connection.RequestURL = inUrl.ToString();
                         
                         // skip to the first option in the URL
-                        var tmp = requestUrl.Substring(requestUrl.IndexOf('?'));
+                        var tmp = connection.RequestURL.Substring(connection.RequestURL.IndexOf('?'));
 
                         // keep track of net id for player associated with remote connection
                         connection.PlayerId = uniqueIdRepl;
@@ -295,6 +297,21 @@ public abstract class UWorld : FNetworkNotify, IAsyncDisposable
                     break;
                 }
 
+                case NMT.Join:
+                {
+                    if (connection.PlayerController == null)
+                    {
+                        // Spawn the player-actor for this network player.
+                        Logger.Debug("Join request: {Request}", connection.RequestURL);
+
+                        // TODO: Proper constructor
+                        var inURL = new FUrl();
+
+                        connection.PlayerController = SpawnPlayActor(connection, ENetRole.ROLE_AutonomousProxy, inURL, connection.PlayerId, out var errorMsg);
+                    }
+                    break;
+                }
+
                 default:
                 {
                     throw new NotImplementedException($"Unhandled control message {messageType}");