Queen movement solved
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c084635905
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@ -11,23 +11,36 @@ class Queen extends Piece {
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@Override
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public List<Move> getLegalMoves(Board board, int row, int col) {
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List<Move> moves = new ArrayList<>();
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// directions: each [dRow, dCol], effectively [dy, dx]
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int[][] directions = {
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{-1, 0}, {1, 0}, {0, -1}, {0, 1},
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{-1, -1}, {-1, 1}, {1, -1}, {1, 1}
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{-1, 0}, // up
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{ 1, 0}, // down
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{ 0, -1}, // left
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{ 0, 1}, // right
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{-1, -1}, // up-left
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{-1, 1}, // up-right
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{ 1, -1}, // down-left
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{ 1, 1} // down-right
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};
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// For each direction, keep going while in bounds
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for (int[] dir : directions) {
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int r = row + dir[0];
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int c = col + dir[1];
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while (board.isInBounds(r, c)) {
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Piece target = board.getPieceAt(r, c);
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while (board.isInBounds(c, r)) {
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Piece target = board.getPieceAt(c, r);
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if (target == null) {
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// empty square
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moves.add(new Move(this, row, col, r, c));
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} else {
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if (target.isWhite() != isWhite)
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// if opposite color, can capture
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if (target.isWhite() != isWhite) {
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moves.add(new Move(this, row, col, r, c, target));
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}
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// cannot jump beyond this piece
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break;
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}
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// move further in the same direction
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r += dir[0];
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c += dir[1];
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}
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@ -39,4 +52,5 @@ class Queen extends Piece {
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public Piece clone() {
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return new Queen(isWhite, x, y);
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}
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}
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}
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