From acea7b2e728787a0d83bbf83c8c1f042d2c32e7e Mon Sep 17 00:00:00 2001
From: chai <215380520@qq.com>
Date: Mon, 3 Jun 2024 10:15:45 +0800
Subject: + plugins project

---
 .../TweenPropertyMember.cs                         | 43 ++++++++++++++++++++++
 1 file changed, 43 insertions(+)
 create mode 100644 Plugins/MonoGame.Extended/source/MonoGame.Extended.Tweening/TweenPropertyMember.cs

(limited to 'Plugins/MonoGame.Extended/source/MonoGame.Extended.Tweening/TweenPropertyMember.cs')

diff --git a/Plugins/MonoGame.Extended/source/MonoGame.Extended.Tweening/TweenPropertyMember.cs b/Plugins/MonoGame.Extended/source/MonoGame.Extended.Tweening/TweenPropertyMember.cs
new file mode 100644
index 0000000..7b1db71
--- /dev/null
+++ b/Plugins/MonoGame.Extended/source/MonoGame.Extended.Tweening/TweenPropertyMember.cs
@@ -0,0 +1,43 @@
+using System;
+using System.Diagnostics;
+using System.Linq.Expressions;
+using System.Reflection;
+
+namespace MonoGame.Extended.Tweening
+{
+    public sealed class TweenPropertyMember<T> : TweenMember<T>
+        where T : struct 
+    {
+        private readonly PropertyInfo _propertyInfo;
+
+        public TweenPropertyMember(object target, PropertyInfo propertyInfo)
+            : base(target, CompileGetMethod(propertyInfo), CompileSetMethod(propertyInfo))
+        {
+            _propertyInfo = propertyInfo;
+        }
+
+        public override Type Type => _propertyInfo.PropertyType;
+        public override string Name => _propertyInfo.Name;
+
+        private static Func<object, object> CompileGetMethod(PropertyInfo propertyInfo)
+        {
+            var param = Expression.Parameter(typeof(object));
+            var instance = Expression.Convert(param, propertyInfo.DeclaringType);
+            var convert = Expression.TypeAs(Expression.Property(instance, propertyInfo), typeof(object));
+            return Expression.Lambda<Func<object, object>>(convert, param).Compile();
+        }
+
+        private static Action<object, object> CompileSetMethod(PropertyInfo propertyInfo)
+        {
+            Debug.Assert(propertyInfo.DeclaringType != null);
+
+            var param = Expression.Parameter(typeof(object));
+            var argument = Expression.Parameter(typeof(object));
+            var expression = Expression.Convert(param, propertyInfo.DeclaringType);
+            var methodInfo = propertyInfo.SetMethod;
+            var arguments = Expression.Convert(argument, propertyInfo.PropertyType);
+            var setterCall = Expression.Call(expression, methodInfo, arguments);
+            return Expression.Lambda<Action<object, object>>(setterCall, param, argument).Compile();
+        }
+    }
+}
\ No newline at end of file
-- 
cgit v1.1-26-g67d0