添加对 Core 的直接引用

RhythmBaseCore/Extensions/EasePropertyExtensions.cs

@@ -0,0 +1,55 @@
+using RhythmBase.Components;
+using RhythmBase.Components.Easing;
+using RhythmBase.Events;
+using System.Reflection;
+namespace RhythmBase.Extensions
+{
+	/// <summary>
+	/// Provides extension methods for retrieving easing properties from events.
+	/// </summary>
+	public static class EasePropertyExtensions
+	{
+		private static readonly Dictionary<Type, PropertyInfo[]> EaseProperties = [];
+		/// <summary>
+		/// Retrieves the easing properties of the specified type of event.
+		/// </summary>
+		/// <typeparam name="TEvent">The type of the event that implements <see cref="IEaseEvent"/>.</typeparam>
+		/// <param name="obj">The collection of events to retrieve the easing properties from.</param>
+		/// <returns>A dictionary containing the names and corresponding easing properties of the specified event type.</returns>
+		/// <exception cref="NotSupportedException">Thrown when an unsupported property type is encountered.</exception>
+		public static Dictionary<string, IEaseProperty> GetEaseProperties<TEvent>(this IEnumerable<TEvent> obj) where TEvent : IEaseEvent, new()
+		{
+			if (!EaseProperties.TryGetValue(typeof(TEvent), out PropertyInfo[]? properties))
+			{
+				EaseProperties[obj.GetType()] = properties = typeof(TEvent).GetProperties(BindingFlags.Instance | BindingFlags.Public)
+				.Where(p => p.GetCustomAttribute<EasePropertyAttribute>() != null)
+				.ToArray();
+			}
+			Dictionary<string, IEaseProperty> values = [];
+			foreach (var property in properties)
+			{
+				if (property.PropertyType.IsAssignableFrom(typeof(RDExpression)))
+				{
+					values[property.Name] = EasePropertyFloat.CreateEaseProperty(0, [.. obj], property);
+				}
+				else if (property.PropertyType.IsAssignableFrom(typeof(RDPointE)))
+				{
+					values[property.Name] = EasePropertyPoint.CreateEaseProperty(default, [.. obj], property);
+				}
+				else if (property.PropertyType.IsAssignableFrom(typeof(RDSizeE)))
+				{
+					values[property.Name] = EasePropertySize.CreateEaseProperty(default, [.. obj], property);
+				}
+				else if (property.PropertyType.IsAssignableFrom(typeof(RDColor)))
+				{
+					values[property.Name] = EasePropertyColor.CreateEaseProperty(default, [.. obj], property);
+				}
+				else
+				{
+					throw new NotSupportedException($"Unsupported property type {property.PropertyType}");
+				}
+			}
+			return values;
+		}
+	}
+}