[Player] Add AI Pathfinding on a 2D grid to the player character

Assets/External/AstarPathfindingProject/Generators/Utilities/EuclideanEmbedding.cs

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+#pragma warning disable 414
+using System.Collections.Generic;
+using UnityEngine;
+
+namespace Pathfinding {
+	public enum HeuristicOptimizationMode {
+		None,
+		Random,
+		RandomSpreadOut,
+		Custom
+	}
+
+	/// <summary>
+	/// Implements heuristic optimizations.
+	///
+	/// See: heuristic-opt
+	/// See: Game AI Pro - Pathfinding Architecture Optimizations by Steve Rabin and Nathan R. Sturtevant
+	/// </summary>
+	[System.Serializable]
+	public class EuclideanEmbedding {
+		/// <summary>
+		/// If heuristic optimization should be used and how to place the pivot points.
+		/// See: heuristic-opt
+		/// See: Game AI Pro - Pathfinding Architecture Optimizations by Steve Rabin and Nathan R. Sturtevant
+		/// </summary>
+		public HeuristicOptimizationMode mode;
+
+		public int seed;
+
+		/// <summary>All children of this transform will be used as pivot points</summary>
+		public Transform pivotPointRoot;
+
+		public int spreadOutCount = 1;
+
+		[System.NonSerialized]
+		public bool dirty;
+
+
+		void EnsureCapacity (int index) {
+		}
+
+		public uint GetHeuristic (int nodeIndex1, int nodeIndex2) {
+			return 0;
+		}
+
+
+		public void RecalculatePivots () {
+		}
+
+		public void RecalculateCosts () {
+			dirty = false;
+		}
+
+
+		public void OnDrawGizmos () {
+		}
+	}
+}