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OOP_2B2_Project
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Implementation of en passant but does not seem to work.

This commit is contained in:
yohanmontagne 2025-05-20 23:22:17 +02:00
parent 361f8f2d3c
commit 5f340c22b2
3 changed files with 54 additions and 1 deletions
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38
OOP_2B1_Project/src/backend/Board.java
View File

@ -346,7 +346,29 @@ public class Board implements Cloneable {
System.err.println("Invalid move: wrong turn");
return;
}
boolean wasThisMoveAnEnPassantCapture = false;
if (pieceToMove.getType() == PieceType.Pawn &&
move.getToCol() != move.getFromCol() &&
getPieceAt(move.getToCol(), move.getToRow()) == null &&
move.getCapturedPiece() != null &&
move.getCapturedPiece().getType() == PieceType.Pawn &&
move.getCapturedPiece() == this.enPassantVulnerablePawn &&
move.getCapturedPiece().getX() == move.getToCol() &&
move.getCapturedPiece().getY() == move.getFromRow()) {
wasThisMoveAnEnPassantCapture = true;
Piece actualPawnToCaptureForEP = move.getCapturedPiece();
if (pieces.contains(actualPawnToCaptureForEP)) {
pieces.remove(actualPawnToCaptureForEP);
}
} else if (move.getCapturedPiece() != null) {
if (pieces.contains(move.getCapturedPiece())) {
pieces.remove(move.getCapturedPiece());
}
} else {
Piece pawnThatJustAdvancedTwoSquares = null;
// Remove captured piece, if any
Piece capturedPiece = getPieceAt(move.getToCol(), move.getToRow());
if (capturedPiece != null) {
@ -367,7 +389,7 @@ public class Board implements Cloneable {
turnNumber++;
this.lastMoveSourceSquare = new int[] {move.getFromCol(), move.getFromRow()};
this.enPassantVulnerablePawn = null;
// Play move sound if enabled
playMoveSound();
return;
@ -388,6 +410,7 @@ public class Board implements Cloneable {
}
}
public ArrayList<Move> getAllLegalMoves(boolean isWhite) {
@ -550,10 +573,23 @@ public class Board implements Cloneable {
&& kingCheckPos[0] == squareX
&& kingCheckPos[1] == squareY);
}
private Piece enPassantVulnerablePawn = null;
private int[] lastMoveSourceSquare = null;
public boolean isLastMoveSourceSquare(int x, int y) {
return lastMoveSourceSquare != null && lastMoveSourceSquare[0] == x && lastMoveSourceSquare[1] == y;
}
public Piece getEnPassantVulnerablePawn() {
return this.enPassantVulnerablePawn;
}
private void updateEnPassantStateAfterMove(Move playedMove, Piece pieceThatMoved) {
if (pieceThatMoved.getType() == PieceType.Pawn &&
Math.abs(playedMove.getFromRow() - playedMove.getToRow()) == 2) {
this.enPassantVulnerablePawn = pieceThatMoved;
System.out.println("EP Vulnerable: " + pieceThatMoved.getType() + " at " + pieceThatMoved.getX() + "," + pieceThatMoved.getY());
} else {
this.enPassantVulnerablePawn = null;
}
}
}

1
OOP_2B1_Project/src/backend/Move.java
View File

@ -49,4 +49,5 @@ public class Move {
return movedPiece.getType() + " from (" + fromRow + "," + fromCol + ") to (" + toRow + "," + toCol + ")" +
(capturedPiece != null ? " capturing " + capturedPiece.getType() : "");
}
}

16
OOP_2B1_Project/src/backend/Pawn.java
View File

@ -39,6 +39,22 @@ public class Pawn extends Piece {
}
}
}
Piece vulnerablePawn = board.getEnPassantVulnerablePawn();
if (vulnerablePawn != null &&
vulnerablePawn.isWhite() != this.isWhite &&
vulnerablePawn.getType() == PieceType.Pawn &&
vulnerablePawn.getY() == row &&
Math.abs(vulnerablePawn.getX() - col) == 1) {
int enPassantToRow = row + direction;
int enPassantToCol = vulnerablePawn.getX();
moves.add(new Move(this, row, col, enPassantToRow, enPassantToCol, vulnerablePawn));
}
return moves;
}