Pathwalker-Klasse (Blatt 7)

inf3.csproj

@@ -71,6 +71,8 @@
     <Compile Include="src\Time.cs" />
     <Compile Include="src\Buffer_Wafa.cs" />
     <Compile Include="src\BufferManuel.cs" />
+    <Compile Include="src\Coordinate.cs" />
+    <Compile Include="src\Pathwalker.cs" />
   </ItemGroup>
   <ItemGroup />
 </Project>

src/Coordinate.cs

@@ -0,0 +1,20 @@
+namespace WorldOfPeacecraft
+{
+	public class Coordinate
+	{
+		public int X { get; set; }
+		public int Y { get; set; }
+
+		public Coordinate (int x, int y)
+		{
+			this.X = x;
+			this.Y = y;
+		}
+
+		public void setCoordinate(int x, int y)
+		{
+			this.X = x;
+			this.Y = y;
+		}
+	}
+}

src/Entity.cs

@@ -10,16 +10,14 @@ namespace WorldOfPeacecraft
 	public abstract class Entity : IPositionable
 	{
 		public int Id;
-		public int PosX;
+		public Coordinate Coord;
-		public int PosY;
 		public string Desc;
 		public bool Busy;
 
 		public Entity (int id, int posX, int posY, string desc, bool busy)
 		{
 			this.SetId (id);
-			this.SetPosX (posX);
+			this.SetCoord(new Coordinate(posX, posY));
-			this.SetPosY (posY);
 			this.SetDesc (desc);
 			this.SetBusy (busy);
 		}
@@ -36,22 +34,27 @@ namespace WorldOfPeacecraft
 
 		public void SetPosX (int x)
 		{
-			this.PosX = x;
+			this.Coord.X = x;
 		}
 
 		public int getXPosition ()
 		{
-			return PosX;
+			return Coord.X;
 		}
 
 		public void SetPosY (int y)
 		{
-			this.PosY = y;
+			this.Coord.Y = y;
 		}
 
 		public int getYPosition ()
 		{
-			return PosY;
+			return Coord.Y;
+		}
+
+		public void SetCoord (Coordinate coord)
+		{
+			this.Coord = coord;
 		}
 
 		public void SetDesc (string desc)

src/Pathwalker.cs

@@ -0,0 +1,70 @@
+using System;
+using System.Runtime.Serialization;
+using System.Collections.Generic;
+
+namespace WorldOfPeacecraft
+{
+	class Pathwalker
+	{
+		private LinkedList<Coordinate> Coords;
+
+		public void Stop()
+		{
+			Coords = null;
+		}
+
+		public string NextStep ()
+		{
+			if (Coords == null) {
+				throw new PathwalkerException ("There are no coordinates set");
+			}
+			if (Coords.Count < 2) {
+				throw new PathwalkerException ("There are no more steps to take");
+			}
+			Coordinate src = Coords.First.Value;
+			Coords.RemoveFirst ();
+			Coordinate dst = Coords.First.Value;
+			int distance = Math.Abs (src.X - dst.X) + Math.Abs (src.Y - dst.Y);
+			if (distance > 1) {
+				throw new PathwalkerException ("The distance between (" + src.X + "|" + src.Y + ") and (" + dst.X + "|" + dst.Y + ") is grater than 1");
+			}
+			string command;
+			if (src.X > dst.X) {
+				command = "mv:dwn";
+			} else if (src.X < dst.X) {
+				command = "mv:up";
+			} else if (src.Y > dst.Y) {
+				command = "mv:lft";
+			} else if (src.Y < dst.Y) {
+				command = "mv:rgt";
+			} else {
+				command = NextStep ();
+			}
+			return command;
+		}
+
+		public void SetCoords(LinkedList<Coordinate> coords)
+		{
+			this.Coords = coords;
+		}
+	}
+
+	public class PathwalkerException : Exception
+	{
+		public PathwalkerException () : base()
+		{
+		}
+
+		public PathwalkerException (string message) : base(message)
+		{
+		}
+
+		public PathwalkerException (SerializationInfo info, StreamingContext context) : base(info, context)
+		{
+		}
+
+		public PathwalkerException (string message, Exception innerException) : base(message, innerException)
+		{
+		}
+	}
+}

src/Player.cs

@@ -21,7 +21,7 @@ namespace WorldOfPeacecraft
 
         public override string ToString()
         {
-            return "Player: " + Id + " " + PosX + " " + PosY + " " + Desc + " " + Busy + " " + Score;
+            return "Player: " + Id + " " + Coord.X + " " + Coord.Y + " " + Desc + " " + Busy + " " + Score;
         }
 	}
 }