Reintroduced AnimationExtensions mapping

.editorconfig

@@ -324,4 +324,5 @@ dotnet_diagnostic.SA1652.severity = none
 
 dotnet_diagnostic.SA1629.severity = none # DocumentationTextMustEndWithAPeriod: Let's enable this rule back when we shift to WinUI3 (v8.x). If we do it now, it would mean more than 400 file changes.
 dotnet_diagnostic.SA1413.severity = none # UseTrailingCommasInMultiLineInitializers: This would also mean a lot of changes at the end of all multiline initializers. It's also debatable if we want this or not.
-dotnet_diagnostic.SA1314.severity = none # TypeParameterNamesMustBeginWithT: We do have a few templates that don't start with T. We need to double check that changing this is not a breaking change. If not, we can re-enable this.
+dotnet_diagnostic.SA1314.severity = none # TypeParameterNamesMustBeginWithT: We do have a few templates that don't start with T. We need to double check that changing this is not a breaking change. If not, we can re-enable this.
+dotnet_diagnostic.SA1000.severity = none # Hide warnings when using the new() expression from C# 9.

Microsoft.Toolkit.Uwp.UI.Animations/Enums/EasingType.cs

@@ -10,7 +10,7 @@ namespace Microsoft.Toolkit.Uwp.UI.Animations
     public enum EasingType
     {
         /// <summary>
-        /// The default easing type, which is specified in AnimationExtensions.DefaultEasingType which is by default Cubic.
+        /// The default easing type, which is specified in <see cref="Extensions.AnimationExtensions.DefaultEasingType"/> which is by default <see cref="Cubic"/>.
         /// </summary>
         Default,
 

Microsoft.Toolkit.Uwp.UI.Animations/Extensions/AnimationExtensions.cs

@@ -0,0 +1,63 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+using System.Collections.Generic;
+using System.Numerics;
+using Windows.UI.Xaml.Media.Animation;
+
+namespace Microsoft.Toolkit.Uwp.UI.Animations.Extensions
+{
+    /// <summary>
+    /// These extension methods perform animation on UIElements
+    /// </summary>
+    public static partial class AnimationExtensions
+    {
+        /// <summary>
+        /// The reusable mapping of control points for easing curves for combinations of <see cref="EasingType"/> and <see cref="EasingMode"/> values.
+        /// </summary>
+        private static readonly Dictionary<(EasingType Type, EasingMode Mode), (Vector2 A, Vector2 B)> EasingMaps = new()
+        {
+            [(EasingType.Cubic, EasingMode.EaseOut)] = (new(0.215f, 0.61f), new(0.355f, 1f)),
+            [(EasingType.Cubic, EasingMode.EaseIn)] = (new(0.55f, 0.055f), new(0.675f, 0.19f)),
+            [(EasingType.Cubic, EasingMode.EaseInOut)] = (new(0.645f, 0.045f), new(0.355f, 1f)),
+
+            [(EasingType.Back, EasingMode.EaseOut)] = (new(0.175f, 0.885f), new(0.32f, 1.275f)),
+            [(EasingType.Back, EasingMode.EaseIn)] = (new(0.6f, -0.28f), new(0.735f, 0.045f)),
+            [(EasingType.Back, EasingMode.EaseInOut)] = (new(0.68f, -0.55f), new(0.265f, 1.55f)),
+
+            [(EasingType.Bounce, EasingMode.EaseOut)] = (new(0.58f, 1.93f), new(.08f, .36f)),
+            [(EasingType.Bounce, EasingMode.EaseIn)] = (new(0.93f, 0.7f), new(0.4f, -0.93f)),
+            [(EasingType.Bounce, EasingMode.EaseInOut)] = (new(0.65f, -0.85f), new(0.35f, 1.85f)),
+
+            [(EasingType.Elastic, EasingMode.EaseOut)] = (new(0.37f, 2.68f), new(0f, 0.22f)),
+            [(EasingType.Elastic, EasingMode.EaseIn)] = (new(1, .78f), new(.63f, -1.68f)),
+            [(EasingType.Elastic, EasingMode.EaseInOut)] = (new(0.9f, -1.2f), new(0.1f, 2.2f)),
+
+            [(EasingType.Circle, EasingMode.EaseOut)] = (new(0.075f, 0.82f), new(0.165f, 1f)),
+            [(EasingType.Circle, EasingMode.EaseIn)] = (new(0.6f, 0.04f), new(0.98f, 0.335f)),
+            [(EasingType.Circle, EasingMode.EaseInOut)] = (new(0.785f, 0.135f), new(0.15f, 0.86f)),
+
+            [(EasingType.Quadratic, EasingMode.EaseOut)] = (new(0.25f, 0.46f), new(0.45f, 0.94f)),
+            [(EasingType.Quadratic, EasingMode.EaseIn)] = (new(0.55f, 0.085f), new(0.68f, 0.53f)),
+            [(EasingType.Quadratic, EasingMode.EaseInOut)] = (new(0.445f, 0.03f), new(0.515f, 0.955f)),
+
+            [(EasingType.Quartic, EasingMode.EaseOut)] = (new(0.165f, 0.84f), new(0.44f, 1f)),
+            [(EasingType.Quartic, EasingMode.EaseIn)] = (new(0.895f, 0.03f), new(0.685f, 0.22f)),
+            [(EasingType.Quartic, EasingMode.EaseInOut)] = (new(0.77f, 0.0f), new(0.175f, 1.0f)),
+
+            [(EasingType.Quintic, EasingMode.EaseOut)] = (new(0.23f, 1f), new(0.32f, 1f)),
+            [(EasingType.Quintic, EasingMode.EaseIn)] = (new(0.755f, 0.05f), new(0.855f, 0.06f)),
+            [(EasingType.Quintic, EasingMode.EaseInOut)] = (new(0.86f, 0.0f), new(0.07f, 1.0f)),
+
+            [(EasingType.Sine, EasingMode.EaseOut)] = (new(0.39f, 0.575f), new(0.565f, 1f)),
+            [(EasingType.Sine, EasingMode.EaseIn)] = (new(0.47f, 0.0f), new(0.745f, 0.715f)),
+            [(EasingType.Sine, EasingMode.EaseInOut)] = (new(0.445f, 0.05f), new(0.55f, 0.95f))
+        };
+
+        /// <summary>
+        /// Gets the default <see cref="EasingType"/> value used for storyboard animations.
+        /// </summary>
+        public static EasingType DefaultEasingType => EasingType.Cubic;
+    }
+}

Microsoft.Toolkit.Uwp.UI.Animations/Microsoft.Toolkit.Uwp.UI.Animations.csproj

@@ -15,18 +15,23 @@
       - AnimationExtensions: Blur, Fade, Light, Offset, Rotate, Saturation, Scale
     </Description>
     <PackageTags>UWP Toolkit Windows Animations Composition Connected Implicit XAML</PackageTags>
+    <LangVersion>9.0</LangVersion>
   </PropertyGroup>
 
   <!-- TODO: Figure out where these go... -->
   <ItemGroup>
     <Compile Remove="Behaviors\**" />
     <Compile Remove="Effects\**" />
+    <Compile Remove="fg\**" />
     <EmbeddedResource Remove="Behaviors\**" />
     <EmbeddedResource Remove="Effects\**" />
+    <EmbeddedResource Remove="fg\**" />
     <None Remove="Behaviors\**" />
     <None Remove="Effects\**" />
+    <None Remove="fg\**" />
     <Page Remove="Behaviors\**" />
     <Page Remove="Effects\**" />
+    <Page Remove="fg\**" />
   </ItemGroup>
 
   <ItemGroup>