From 22eea2b7e9e16ac30828cef8341b4ab517a30e67 Mon Sep 17 00:00:00 2001
From: leahb <leahb@172.30.31.30>
Date: Mon, 19 May 2025 21:03:14 +0200
Subject: [PATCH] en oassant working

---
 src/backend/Board.java          | 35 ++++++++++++++++++++++-----------
 src/backend/MoveConditions.java |  5 ++++-
 2 files changed, 28 insertions(+), 12 deletions(-)

diff --git a/src/backend/Board.java b/src/backend/Board.java
index dd07f37..b493aee 100644
--- a/src/backend/Board.java
+++ b/src/backend/Board.java
@@ -15,6 +15,7 @@ public class Board {
 	private boolean pawnDoubleStep;
 	private int xCoordinatePawn;
 	private int yCoordinatePawn;
+	private boolean enPassant;
 		
 	private ArrayList<Board> previousStates;
 	
@@ -24,6 +25,7 @@ public class Board {
 	    this.turnNumber = 0;
 	    this.isWhiteTurn = true;  // White starts first
 	    this.previousStates = new ArrayList<>(); // Initialize the ArrayList
+	    
 	}
 
 	public int getWidth() {
@@ -54,6 +56,14 @@ public class Board {
 		return this.isWhiteTurn;
 	}
 	
+	public boolean isEnPassant() {
+		return this.enPassant;
+	}
+	
+	public void setEnPassant(boolean enPassant) {
+		this.enPassant = enPassant;
+	}
+	
 	public void resetTurn() {
 	    this.turnNumber = 0;
 	    this.isWhiteTurn = true;
@@ -196,11 +206,23 @@ public class Board {
 	    // detects castling (piece is castling only if piecetype is king and distance between king and its move is of 2)
 	    boolean isCastling = selectedPiece.getType() == PieceType.King && Math.abs(x - originalX) == 2;
 
-	    
-
 	    if (clickedPiece != null) {
 	        System.out.println("Capturing piece at: " + x + ", " + y);
 	        pieces.remove(clickedPiece);	        
+	    } else {
+	    	if (enPassant == true && y == Math.abs(yCoordinatePawn-1) && x == xCoordinatePawn) {
+	    		pieces.remove(getPieceAt(xCoordinatePawn, yCoordinatePawn));
+	    		enPassant = false;
+	    	}
+	    }
+	    
+	    if (selectedPiece.getType() == PieceType.Pawn && Math.abs(y - selectedY) == 2) {
+	        pawnDoubleStep = true; //boolean to check if pawn has been moved 2 at start
+	        xCoordinatePawn = x; //get its coordinates
+	        yCoordinatePawn = y;
+	        System.out.println("Pawn moved two squares to (" + xCoordinatePawn + ", " + yCoordinatePawn + ")");
+	    } else {
+	        pawnDoubleStep = false;
 	    }
 	   
 	    System.out.println("Moving piece to: " + x + ", " + y);
@@ -223,15 +245,6 @@ public class Board {
 	            }
 	        }
 	    }
-	    
-	    if (selectedPiece.getType() == PieceType.Pawn && Math.abs(y - selectedY) == 2) {
-	        pawnDoubleStep = true; //boolean to check if pawn has been moved 2 at start
-	        xCoordinatePawn = x; //get its coordinates
-	        yCoordinatePawn = y;
-	        System.out.println("Pawn moved two squares to (" + xCoordinatePawn + ", " + yCoordinatePawn + ")");
-	    } else {
-	        pawnDoubleStep = false;
-	    }
 
 	    turnNumber++;
 	    isWhiteTurn = !isWhiteTurn;
diff --git a/src/backend/MoveConditions.java b/src/backend/MoveConditions.java
index f0155e6..7da9fc5 100644
--- a/src/backend/MoveConditions.java
+++ b/src/backend/MoveConditions.java
@@ -5,8 +5,10 @@ import java.util.ArrayList;
 public class MoveConditions {
     private Piece piece;
     private Board board;
+    //private boolean enPassant;
 
-    public MoveConditions(Piece piece, Board board) {
+
+	public MoveConditions(Piece piece, Board board) {
         this.piece = piece;
         this.board = board;
     }
@@ -58,6 +60,7 @@ public class MoveConditions {
                     sidePawn.isWhite() != isWhite) {
 
                     moves.add(new int[]{sideX, y + dir}); // capture en passant square
+                    board.setEnPassant(true);
                 }
             }
         }