en passant undo

OOP_2B1_Project/src/backend/Board.java

@@ -36,7 +36,7 @@ public class Board {
 		}
 		this.turnNumber = 0;
 		this.turnColor = true;
-		boardHistory.add(new BoardHistory(board,turnNumber,turnColor));
+		boardHistory.add(new BoardHistory(board,turnNumber,turnColor,lastMove));
 	}
 
 	public int getWidth() {
@@ -127,7 +127,7 @@ public class Board {
 	
 	public void movePiece(int x, int y) {
 		if (select) {
-			boardHistory.add(new BoardHistory(board,turnNumber,turnColor));
+			boardHistory.add(new BoardHistory(board,turnNumber,turnColor,lastMove));
 			Piece pieceToMove = this.board.get(this.ym).get(this.xm);
 			boolean isCastlingMove = pieceToMove.getType() == PieceType.King && Math.abs(x - xm) == 2;
 			
@@ -263,7 +263,7 @@ public class Board {
 		board = fileToBoard.getBoard();
 		turnNumber = fileToBoard.getTurnNumber();
 		turnColor = fileToBoard.isTurnColor();
-		boardHistory.add(new BoardHistory(board,turnNumber,turnColor));
+		boardHistory.add(new BoardHistory(board,turnNumber,turnColor,lastMove));
 	}
 //	public Board toBoard(String[] array) {
 //		FileBoard fileToBoard = new FileBoard(array);
@@ -294,6 +294,7 @@ public class Board {
 			board = boardHistory.get(boardHistory.size() - 1).getBoard();
 			this.turnNumber = boardHistory.getLast().getTurnNumber();
 			this.turnColor = boardHistory.getLast().isTurnColor();
+			this.lastMove = boardHistory.getLast().getLastMove();
 			boardHistory.removeLast();
 //			System.out.println(boardHistory); // Debug
 		}
@@ -309,7 +310,7 @@ public class Board {
 		int ym = move.getFromY();
 		int x = move.getToX();
 		int y = move.getToY();
-		boardHistory.add(new BoardHistory(board,turnNumber,turnColor));
+		boardHistory.add(new BoardHistory(board,turnNumber,turnColor,lastMove));
 		Piece pieceToMove = this.board.get(ym).get(xm);
 		boolean isCastlingMove = pieceToMove.getType() == PieceType.King && Math.abs(x - xm) == 2;
 		lastMove = new Move(xm, ym, x, y);

OOP_2B1_Project/src/backend/BoardHistory.java

@@ -8,10 +8,12 @@ public class BoardHistory {
 	public ArrayList<ArrayList<Piece>> board = new ArrayList<>();
 	public int turnNumber;
 	public boolean turnColor;
-	public BoardHistory(ArrayList<ArrayList<Piece>> board, int turnNumber, boolean turnColor) {
+	public Move lastMove;
+	public BoardHistory(ArrayList<ArrayList<Piece>> board, int turnNumber, boolean turnColor, Move lastMove) {
 		this.board = deepCopyBoard(board);
 		this.turnNumber = turnNumber;
 		this.turnColor = turnColor;
+		this.lastMove = lastMove;
 	}
 	private ArrayList<ArrayList<Piece>> deepCopyBoard(ArrayList<ArrayList<Piece>> original) {
         ArrayList<ArrayList<Piece>> copy = new ArrayList<>();
@@ -41,5 +43,8 @@ public class BoardHistory {
 	public String toString() {
 		return "BoardHistory [board=" + board + "]";
 	}
+	public Move getLastMove() {
+		return lastMove;
+	}
 	
 }

OOP_2B1_Project/src/windowInterface/JPanelChessBoard.java

@@ -39,6 +39,7 @@ public class JPanelChessBoard extends JPanel {
 		selectedPieceType = PieceType.Pawn;
 		pieceSelectorMode = false;
 		try {
+			
 			spriteSheet = ImageIO.read(new File("newPieces.png"));
 		} catch (IOException e) {
 			e.printStackTrace();

OOP_2B1_Project/src/windowInterface/MyInterface.java

@@ -295,10 +295,10 @@ public class MyInterface extends JFrame {
 	    );
 
 	    switch (choice) {
-	        case 0: return 1; // Easy
-	        case 1: return 2; // Medium
-	        case 2: return 3; // Hard
-	        default: return 2; // fallback to Medium
+	        case 0: return 2; // Easy
+	        case 1: return 3; // Medium
+	        case 2: return 4; // Hard
+	        default: return 3; // fallback to Medium
 	    }
 	}
 }