Add a few extension methods to ease netmessage serialization.

SS14.Shared/Network/NetMessageExt.cs

@@ -0,0 +1,37 @@
+using Lidgren.Network;
+using SS14.Shared.Map;
+using SS14.Shared.Maths;
+
+namespace SS14.Shared.Network
+{
+    public static class NetMessageExt
+    {
+        public static GridLocalCoordinates ReadGridLocalCoordinates(this NetIncomingMessage message)
+        {
+            var gridId = new GridId(message.ReadInt32());
+            var vector = message.ReadVector2();
+
+            return new GridLocalCoordinates(vector, gridId);
+        }
+
+        public static void Write(this NetOutgoingMessage message, GridLocalCoordinates coordinates)
+        {
+            message.Write(coordinates.GridID.Value);
+            message.Write(coordinates.Position);
+        }
+
+        public static Vector2 ReadVector2(this NetIncomingMessage message)
+        {
+            var x = message.ReadFloat();
+            var y = message.ReadFloat();
+
+            return new Vector2(x, y);
+        }
+
+        public static void Write(this NetOutgoingMessage message, Vector2 vector2)
+        {
+            message.Write(vector2.X);
+            message.Write(vector2.Y);
+        }
+    }
+}

SS14.Shared/SS14.Shared.csproj

@@ -220,6 +220,7 @@
     <Compile Include="Network\NetChannel.cs" />
     <Compile Include="Network\NetMessage.cs" />
     <Compile Include="Network\NetManager.cs" />
+    <Compile Include="Network\NetMessageExt.cs" />
     <Compile Include="Network\NetSessionId.cs" />
     <Compile Include="Network\StringTable.cs" />
     <Compile Include="Physics\PhysicsManager.cs" />