Libraryaufruf in C#

src/Pathfinder.cs

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+using System.Collections.Generic;
+using System.Runtime.InteropServices;
+
+namespace WorldOfPeacecraft
+{
+	class Pathfinder
+	{
+		private struct PathNode
+		{
+			[MarshalAs(UnmanagedType.U4)]
+			public uint X;
+			[MarshalAs(UnmanagedType.U4)]
+			public uint Y;
+		}
+
+		public static LinkedList<Coordinate> FindPath (uint posFrom, uint posTo, Map map)
+		{
+			Tile[,] tiles = map.GetTiles ();
+			uint mapWidth = tiles.GetLength (0);
+			uint mapHeight = tiles.GetLength (1);
+			bool[] boolMap = new bool[mapHeight * mapWidth];
+			for (int y = 0; y < mapHeight; y++) {
+				for (int x = 0; x < mapWidth; y++) {
+					boolMap [x + y * mapWidth] = tiles [x, y].IsWalkable ();
+				}
+			}
+			PathNode[] result = new PathNode[mapHeight * mapWidth];
+			int noSteps = findPath (posFrom, posTo, mapWidth, mapHeight, boolMap, result);
+			LinkedList<Coordinate> mappedResult = new LinkedList<Coordinate>();
+			for (int i = 0; i < noSteps; i++) {
+				mappedResult.AddLast(new Coordinate(result[i].X, result[i].Y));
+			}
+			return mappedResult;
+		}
+
+		[DllImport("pathfinding.dll")]
+		[return: MarshalAs(UnmanagedType.U4)]
+		private static extern uint findPath(
+			[MarshalAs(UnmanagedType.U4)]       uint posFrom,
+			[MarshalAs(UnmanagedType.U4)]       uint posTo,
+			[MarshalAs(UnmanagedType.U4)]       uint mapWidth,
+			[MarshalAs(UnmanagedType.U4)]       uint mapHeight,
+			[MarshalAs(UnmanagedType.LPArray)]  bool[] map,
+			[MarshalAs(UnmanagedType.LPArray)]	PathNode[] result);
+	}
+}