Fix for KeepAlive packets not going through

Source/Client/Networking/State/ClientPlayingState.cs

@@ -1,8 +1,8 @@
+using System;
+using System.Collections.Generic;
 using Ionic.Zlib;
 using Multiplayer.Common;
 using RimWorld;
-using System;
-using System.Collections.Generic;
 using UnityEngine;
 using Verse;
 
@@ -32,14 +32,20 @@ public void HandleTimeControl(ByteReader data)
         [PacketHandler(Packets.Server_KeepAlive)]
         public void HandleKeepAlive(ByteReader data)
         {
+            var padding = data.ReadRaw(8);
             int id = data.ReadInt32();
+            var ending = data.ReadRaw(8);
             int ticksBehind = TickPatch.tickUntil - TickPatch.Timer;
 
-            connection.Send(
-                Packets.Client_KeepAlive,
-                ByteWriter.GetBytes(id, ticksBehind, TickPatch.Simulating, TickPatch.workTicks),
-                false
-            );
+            var writer = new ByteWriter();
+            writer.WriteRaw(padding);
+            writer.WriteInt32(id);
+            writer.WriteInt32(ticksBehind);
+            writer.WriteBool(TickPatch.Simulating);
+            writer.WriteInt32(TickPatch.workTicks);
+            writer.WriteRaw(ending);
+
+            connection.Send(Packets.Client_KeepAlive, writer.ToArray(), false);
         }
 
         [PacketHandler(Packets.Server_Command)]

Source/Common/Networking/State/ServerPlayingState.cs

@@ -173,10 +173,12 @@ public void HandlePing(ByteReader data)
         [PacketHandler(Packets.Client_KeepAlive)]
         public void HandleClientKeepAlive(ByteReader data)
         {
+            var padding = data.ReadRaw(8);
             int id = data.ReadInt32();
             int ticksBehind = data.ReadInt32();
             var simulating = data.ReadBool();
             var workTicks = data.ReadInt32();
+            var ending = data.ReadRaw(8);
 
             Player.ticksBehind = ticksBehind;
             Player.ticksBehindReceivedAt = Server.gameTimer;

Source/Common/ServerPlayer.cs

@@ -24,7 +24,7 @@ public class ServerPlayer : IChatSource
 
         public int lastCursorTick = -1;
 
-        public int keepAliveId;
+        public int keepAliveId = 0xCAFE;
         public Stopwatch keepAliveTimer = new();
         public int keepAliveAt;
 
@@ -82,7 +82,17 @@ public void SendKeepAlivePacket()
             {
                 keepAliveTimer.Start();
             }
-            SendPacket(Packets.Server_KeepAlive, ByteWriter.GetBytes(keepAliveId), false);
+
+            var bytes = new byte[8];
+            var bytes2 = new byte[8];
+            var random = new Random();
+            random.NextBytes(bytes);
+            random.NextBytes(bytes2);
+            var writer = new ByteWriter(20);
+            writer.WriteRaw(bytes);
+            writer.WriteInt32(keepAliveId);
+            writer.WriteRaw(bytes2);
+            SendPacket(Packets.Server_KeepAlive, writer.ToArray(), false);
         }
 
         public void SendPacket(Packets packet, byte[] data, bool reliable = true)