fix: Fixes tick count calculcations (#1366)

Projects/Server/Main.cs

@@ -120,6 +120,8 @@ public static class Core
 
     public static Thread Thread { get; private set; }
 
+    private static long _firstTick;
+
     [ThreadStatic]
     private static long _tickCount;
 
@@ -164,6 +166,8 @@ public static class Core
         }
     }
 
+    public static long Uptime => Thread.CurrentThread != Thread ? 0 : TickCount - _firstTick;
+
     private static long _cycleIndex = 1;
     private static float[] _cyclesPerSecond = new float[128];
 
@@ -515,6 +519,7 @@ public static class Core
 
         TcpServer.Start();
         EventSink.InvokeServerStarted();
+        _firstTick = TickCount;
         RunEventLoop();
     }
 

Projects/Server/Network/NetState/NetState.Fastwalk.cs

@@ -39,21 +39,17 @@ public partial class NetState
 
         var now = Core.TickCount;
 
-        var lastIndex = -1;
-
         // Expire old steps
         while (_expiredIndex != _stepIndex)
         {
             var step = _steps[_expiredIndex];
 
             // Is the step ahead of us, or the next step rolled over and we didn't yet
-            if (step > now || lastIndex > -1 && _steps[lastIndex] > step)
+            if (step - now > 0)
             {
                 break;
             }
 
-            lastIndex = _expiredIndex++;
-
             if (_expiredIndex == stepsLength)
             {
                 _expiredIndex -= stepsLength;

Projects/Server/Network/TcpServer.cs

@@ -164,7 +164,7 @@ public static class TcpServer
 
                     var ticks = Core.TickCount;
 
-                    if (_nextMaximumSocketsReachedMessage <= ticks)
+                    if (ticks - _nextMaximumSocketsReachedMessage > 0)
                     {
                         if (socket.RemoteEndPoint is IPEndPoint ipep)
                         {