Add new settings to the big black box

osu.Game/Skinning/Components/BigBlackBox.cs

@@ -2,9 +2,11 @@
 // See the LICENCE file in the repository root for full licence text.
 
 using JetBrains.Annotations;
+using osu.Framework.Bindables;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Containers;
 using osu.Framework.Graphics.Shapes;
+using osu.Game.Configuration;
 using osu.Game.Graphics.Sprites;
 using osuTK;
 using osuTK.Graphics;
@@ -19,6 +21,19 @@ namespace osu.Game.Skinning.Components
     {
         public bool UsesFixedAnchor { get; set; }
 
+        [SettingSource("Spin", "Should the text spin")]
+        public Bindable<bool> TextSpin { get; } = new BindableBool();
+
+        [SettingSource("Alpha", "The alpha value of this box")]
+        public BindableNumber<float> BoxAlpha { get; } = new BindableNumber<float>(1)
+        {
+            MinValue = 0,
+            MaxValue = 1,
+        };
+
+        private readonly Box box;
+        private readonly OsuSpriteText text;
+
         public BigBlackBox()
         {
             Size = new Vector2(150);
@@ -29,13 +44,12 @@ namespace osu.Game.Skinning.Components
 
             InternalChildren = new Drawable[]
             {
-                new Box
+                box = new Box
                 {
                     Colour = Color4.Black,
                     RelativeSizeAxes = Axes.Both,
                 },
-
+                text = new OsuSpriteText
-                new OsuSpriteText
                 {
                     Text = "Big Black Box",
                     Anchor = Anchor.Centre,
@@ -43,5 +57,19 @@ namespace osu.Game.Skinning.Components
                 }
             };
         }
+
+        protected override void LoadComplete()
+        {
+            base.LoadComplete();
+
+            BoxAlpha.BindValueChanged(alpha => box.Alpha = alpha.NewValue, true);
+            TextSpin.BindValueChanged(spin =>
+            {
+                if (spin.NewValue)
+                    text.Spin(1000, RotationDirection.Clockwise);
+                else
+                    text.ClearTransforms();
+            }, true);
+        }
     }
 }