board setup and chess piece movement checks

1 files changed, 46 insertions, 0 deletions

diff --git a/Pieces/Knight.cs b/Pieces/Knight.cs
new file mode 100644
index 0000000..5a0aea7
--- /dev/null
+++ b/Pieces/Knight.cs
@@ -0,0 +1,46 @@
+using System;
+using System.Collections.Generic;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Chess.Pieces
+{
+    class Knight : ChessPiece
+    {
+        public Knight(bool isWhite) : base(isWhite)
+        {
+            PieceImage = new Bitmap(!isWhite ? Chess.Properties.Resources.b_knight_png_shadow_256px : Chess.Properties.Resources.w_knight_png_shadow_256px);
+        }
+
+        public override bool CanMoveTo(ChessBoard board, BoardTile currentTile, BoardTile destinationTile)
+        {
+            Point[] pointsToCheck = {
+                new Point(currentTile.X - 2, currentTile.Y - 1),
+                new Point(currentTile.X - 2, currentTile.Y + 1),
+
+                new Point(currentTile.X + 2, currentTile.Y - 1),
+                new Point(currentTile.X + 2, currentTile.Y + 1),
+
+                new Point(currentTile.X + 1, currentTile.Y - 2),
+                new Point(currentTile.X - 1, currentTile.Y - 2),
+
+                new Point(currentTile.X + 1, currentTile.Y + 2),
+                new Point(currentTile.X - 1, currentTile.Y + 2),
+            };
+
+            foreach(var point in pointsToCheck)
+            {
+                if (!(destinationTile.Y == point.Y && destinationTile.X == point.X)) continue;
+
+                var enemy = board.PieceAt(point.X, point.Y);
+                if (enemy == null) return true;
+                if (enemy != null && enemy.IsWhite != this.IsWhite) return true;
+                if (enemy != null && enemy != this) continue;
+            }
+
+            return false;
+        }
+    }
+}