增加了基础工具包

Packages/Tools/Runtime/Global/Handle.cs

@@ -0,0 +1,26 @@
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+namespace MuHua {
+	/// <summary>
+	/// 事件处理器
+	/// </summary>
+	public class Handle<Data> : Single<Assets<Data>> {
+		/// <summary> 数据 </summary>
+		protected Data value;
+
+		/// <summary> 当前数据 </summary>
+		public virtual Data Current => value;
+		/// <summary> 当前数据是否有效 </summary>
+		public virtual bool IsValid => Current != null;
+
+		/// <summary> 改变当前数据 Event </summary>
+		public virtual event Action<Data> OnChange;
+		/// <summary> 改变当前数据 </summary>
+		public virtual void Change() => OnChange?.Invoke(value);
+		/// <summary> 改变当前数据 </summary>
+		public virtual void Change(Data value) { this.value = value; Change(); }
+	}
+}