fixed negative time issue (#37)

* allow opponent to play on negative time
* bumped version

README.md

@@ -23,7 +23,7 @@ Initializes the engine and provides engine information.
 **Example:**
 ```
 uci
-id name Woodpusher 1.4.0+d6be4b9c9fa56528613008cd6f05241629906b4f
+id name Woodpusher 1.4.1+689e19f3ce89cc8b63870a0e3e3c6f482ed476d3
 id author Mikael Fredriksson <[email protected]>
 option name OwnBook type check default true
 uciok

Woodpusher/UniversalChessInterface.cs

@@ -29,8 +29,8 @@ public class UniversalChessInterface
         private static readonly Regex PositionRegex =
             new(@"^(position).+?(fen(.+?))?(moves(.+?))?$", RegexOptions.Compiled);
         private static readonly Regex MovesRegex = new(@"([a-h][1-8][a-h][1-8][rnbq]?)", RegexOptions.Compiled);
-        private static readonly Regex WhiteTimeRegex = new(@"wtime (\d+)", RegexOptions.Compiled);
-        private static readonly Regex BlackTimeRegex = new(@"btime (\d+)", RegexOptions.Compiled);
+        private static readonly Regex WhiteTimeRegex = new(@"wtime (-?\d+)", RegexOptions.Compiled);
+        private static readonly Regex BlackTimeRegex = new(@"btime (-?\d+)", RegexOptions.Compiled);
         private static readonly Regex MovesToGoRegex = new(@"movestogo (\d+)", RegexOptions.Compiled);
         private static readonly Regex MovetimeRegex = new(@"movetime (\d+)", RegexOptions.Compiled);
         private static readonly Regex PerftRegex = new(@"perft (\d+)", RegexOptions.Compiled);
@@ -260,4 +260,4 @@ private void Go(string command)
             }
         }
     }
-}
+}

Woodpusher/Woodpusher.csproj

@@ -7,7 +7,7 @@
     <Nullable>enable</Nullable>
     <RootNamespace>SicTransit.Woodpusher</RootNamespace>
     <Authors>Mikael Fredriksson &lt;[email protected]&gt;</Authors>
-    <Version>1.4.0</Version>
+    <Version>1.4.1</Version>
   </PropertyGroup>
 
   <ItemGroup>