NodeScript+ 导入了个 UI Extend

Signed-off-by: TRADER_FOER <lhf190@outlook.com>

Assets/com.unity.uiextensions/Runtime/Scripts/Controls/MultiTouchScrollRect.cs

@@ -0,0 +1,38 @@
+/// Credit Erdener Gonenc - @PixelEnvision
+/*USAGE: Simply use that instead of the regular ScrollRect */
+
+namespace UnityEngine.UI.Extensions
+{
+    [AddComponentMenu ("UI/Extensions/MultiTouchScrollRect")]
+	public class MultiTouchScrollRect : ScrollRect
+	{
+		private int pid = -100;
+
+		/// <summary>
+		/// Begin drag event
+		/// </summary>
+		public override void OnBeginDrag (UnityEngine.EventSystems.PointerEventData eventData)
+		{
+			pid = eventData.pointerId;
+			base.OnBeginDrag (eventData);
+		}
+
+		/// <summary>
+		/// Drag event
+		/// </summary>
+		public override void OnDrag (UnityEngine.EventSystems.PointerEventData eventData)
+		{
+			if (pid == eventData.pointerId)
+				base.OnDrag (eventData);
+		}
+
+		/// <summary>
+		/// End drag event
+		/// </summary>
+		public override void OnEndDrag (UnityEngine.EventSystems.PointerEventData eventData)
+		{
+				pid = -100;
+				base.OnEndDrag (eventData);
+		}
+	}
+}