Add new meta files and interfaces for project structure

Assets/Samples/A_ Pathfinding Project/5.3.8/Example scenes/ExampleScripts/SnapToNode.cs

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+using UnityEngine;
+using System.Collections;
+using Pathfinding;
+
+namespace Pathfinding.Examples {
+	/// <summary>
+	/// Helper editor script to snap an object to the closest node.
+	/// Used in the "Turn Based" example scene for snapping obstacles to the hexagon grid.
+	/// </summary>
+	[ExecuteInEditMode]
+	[HelpURL("https://arongranberg.com/astar/documentation/stable/snaptonode.html")]
+	public class SnapToNode : MonoBehaviour {
+		/// <summary>[Update]</summary>
+		void Update () {
+			if (transform.hasChanged && AstarPath.active != null) {
+				var node = AstarPath.active.GetNearest(transform.position, NNConstraint.None).node;
+				if (node != null) {
+					transform.position = (Vector3)node.position;
+					transform.hasChanged = false;
+				}
+			}
+		}
+		/// <summary>[Update]</summary>
+	}
+}