Update framework and add rudimentary fading to song select screen.

osu.Desktop.VisualTests/Tests/TestCaseGamefield.cs

@@ -27,16 +27,12 @@ namespace osu.Desktop.VisualTests.Tests
 
         public override string Description => @"Showing hitobjects and what not.";
 
-        FramedClock localClock;
-
-        protected override IFrameBasedClock Clock => localClock;
-
         public override void Reset()
         {
             base.Reset();
 
             //ensure we are at offset 0
-            localClock = new FramedClock();
+            Clock = new FramedClock();
 
             List<HitObject> objects = new List<HitObject>();
 
@@ -93,7 +89,7 @@ namespace osu.Desktop.VisualTests.Tests
         protected override void Update()
         {
             base.Update();
-            localClock.ProcessFrame();
+            Clock.ProcessFrame();
         }
     }
 }

osu.Desktop.VisualTests/Tests/TestCaseHitObjects.cs

@@ -19,21 +19,17 @@ namespace osu.Desktop.VisualTests.Tests
     {
         public override string Name => @"Hit Objects";
 
-        IFrameBasedClock ourClock;
-
-        protected override IFrameBasedClock Clock => ourClock;
-
         public TestCaseHitObjects()
         {
             var swClock = new StopwatchClock(true) { Rate = 1 };
-            ourClock = new FramedClock(swClock);
+            Clock = new FramedClock(swClock);
         }
 
         public override void Reset()
         {
             base.Reset();
 
-            ourClock.ProcessFrame();
+            Clock.ProcessFrame();
 
             Container approachContainer = new Container { Depth = float.MaxValue, };
 
@@ -45,7 +41,7 @@ namespace osu.Desktop.VisualTests.Tests
             {
                 var h = new HitCircle
                 {
-                    StartTime = ourClock.CurrentTime + 1000 + i * 80,
+                    StartTime = Clock.CurrentTime + 1000 + i * 80,
                     Position = new Vector2((i - count / 2) * 14),
                 };
 
@@ -65,7 +61,7 @@ namespace osu.Desktop.VisualTests.Tests
         protected override void Update()
         {
             base.Update();
-            ourClock.ProcessFrame();
+            Clock.ProcessFrame();
         }
     }
 }

osu.Desktop.VisualTests/Tests/TestCaseMusicController.cs

@@ -13,20 +13,17 @@ namespace osu.Desktop.VisualTests.Tests
         public override string Name => @"Music Controller";
         public override string Description => @"Tests music controller ui.";
 
-        IFrameBasedClock ourClock;
-        protected override IFrameBasedClock Clock => ourClock;
-
         protected MusicController mc;
 
         public TestCaseMusicController()
         {
-            ourClock = new FramedClock();
+            Clock = new FramedClock();
         }
 
         public override void Reset()
         {
             base.Reset();
-            ourClock.ProcessFrame();
+            Clock.ProcessFrame();
             mc = new MusicController
             {
                 Origin = Anchor.Centre,
@@ -39,7 +36,7 @@ namespace osu.Desktop.VisualTests.Tests
         protected override void Update()
         {
             base.Update();
-            ourClock.ProcessFrame();
+            Clock.ProcessFrame();
         }
     }
 }

osu.Desktop.VisualTests/Tests/TestCasePlayer.cs

@@ -8,8 +8,6 @@ using osu.Framework.Timing;
 using osu.Game.Beatmaps;
 using osu.Game.Beatmaps.Formats;
 using OpenTK;
-using osu.Framework;
-using osu.Framework.Allocation;
 using osu.Framework.Graphics.Sprites;
 using osu.Game.Modes.Objects;
 using osu.Game.Modes.Osu.Objects;
@@ -24,16 +22,12 @@ namespace osu.Desktop.VisualTests.Tests
 
         public override string Description => @"Showing everything to play the game.";
 
-        FramedClock localClock;
-
-        protected override IFrameBasedClock Clock => localClock;
-
         public override void Reset()
         {
             base.Reset();
 
             //ensure we are at offset 0
-            localClock = new FramedClock();
+            Clock = new FramedClock();
 
             var objects = new List<HitObject>();
 
@@ -75,7 +69,7 @@ namespace osu.Desktop.VisualTests.Tests
         protected override void Update()
         {
             base.Update();
-            localClock.ProcessFrame();
+            Clock.ProcessFrame();
         }
     }
 }