Parse time signature from legacy beatmap control points.

osu.Game/Beatmaps/Formats/OsuLegacyDecoder.cs

@@ -207,7 +207,8 @@ namespace osu.Game.Beatmaps.Formats
                     VelocityAdjustment = beatLength < 0 ? -beatLength / 100.0 : 1,
                     TimingChange = split.Length <= 6 || split[6][0] == '1',
                     KiaiMode = (effectFlags & 1) > 0,
-                    OmitFirstBarLine = (effectFlags & 8) > 0
+                    OmitFirstBarLine = (effectFlags & 8) > 0,
+                    TimeSignature = (TimeSignatures)int.Parse(split[2])
                 };
             }
 

osu.Game/Beatmaps/Timing/ControlPoint.cs

@@ -11,18 +11,12 @@ namespace osu.Game.Beatmaps.Timing
             TimingChange = true,
         };
 
+        public TimeSignatures TimeSignature;
         public double Time;
         public double BeatLength;
         public double VelocityAdjustment;
         public bool TimingChange;
         public bool KiaiMode;
         public bool OmitFirstBarLine;
-
-    }
-
-    internal enum TimeSignatures
-    {
-        SimpleQuadruple = 4,
-        SimpleTriple = 3
     }
 }

osu.Game/Beatmaps/Timing/TimeSignatures.cs

@@ -0,0 +1,11 @@
+// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
+// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
+
+namespace osu.Game.Beatmaps.Timing
+{
+    public enum TimeSignatures
+    {
+        SimpleQuadruple = 4,
+        SimpleTriple = 3
+    }
+}

osu.Game/osu.Game.csproj

@@ -76,6 +76,7 @@
     <Compile Include="Beatmaps\IBeatmapCoverter.cs" />
     <Compile Include="Beatmaps\IBeatmapProcessor.cs" />
     <Compile Include="Beatmaps\Legacy\LegacyBeatmap.cs" />
+    <Compile Include="Beatmaps\Timing\TimeSignatures.cs" />
     <Compile Include="Beatmaps\Timing\TimingInfo.cs" />
     <Compile Include="Database\ScoreDatabase.cs" />
     <Compile Include="Graphics\Backgrounds\Triangles.cs" />