120 lines
3.9 KiB
Java
120 lines
3.9 KiB
Java
package dev.kske.chess.board;
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import java.util.ArrayList;
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import java.util.List;
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/**
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* Project: <strong>Chess</strong><br>
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* File: <strong>Queen.java</strong><br>
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* Created: <strong>01.07.2019</strong><br>
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* Author: <strong>Kai S. K. Engelbart</strong>
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*/
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public class Queen extends Piece {
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public Queen(Color color, Board board) {
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super(color, board);
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}
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@Override
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public boolean isValidMove(Move move) {
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return ((move.isHorizontal() || move.isVertical()) || move.isDiagonal()) && isFreePath(move);
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}
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@Override
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protected boolean isFreePath(Move move) {
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if (move.isHorizontal()) {
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for (int i = move.pos.x + move.xSign; i != move.dest.x; i += move.xSign)
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if (board.getBoardArr()[i][move.pos.y] != null) return false;
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} else if (move.isVertical()) {
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for (int i = move.pos.y + move.ySign; i != move.dest.y; i += move.ySign)
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if (board.getBoardArr()[move.pos.x][i] != null) return false;
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} else {
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for (int i = move.pos.x + move.xSign, j = move.pos.y
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+ move.ySign; i != move.dest.x; i += move.xSign, j += move.ySign)
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if (board.getBoardArr()[i][j] != null) return false;
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}
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return checkDestination(move);
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}
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@Override
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protected List<Move> getPseudolegalMoves(Position pos) {
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List<Move> moves = new ArrayList<>();
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// Horizontal moves to the right
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for (int i = pos.x + 1; i < 8; i++) {
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Move move = new Move(pos, new Position(i, pos.y));
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if (board.getDest(move) == null || board.getDest(move).getColor() != getColor()) {
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moves.add(move);
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if (board.getDest(move) != null) break;
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} else break;
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}
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// Horizontal moves to the left
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for (int i = pos.x - 1; i >= 0; i--) {
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Move move = new Move(pos, new Position(i, pos.y));
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if (board.getDest(move) == null || board.getDest(move).getColor() != getColor()) {
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moves.add(move);
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if (board.getDest(move) != null) break;
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} else break;
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}
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// Vertical moves to the top
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for (int i = pos.y - 1; i >= 0; i--) {
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Move move = new Move(pos, new Position(pos.x, i));
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if (board.getDest(move) == null || board.getDest(move).getColor() != getColor()) {
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moves.add(move);
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if (board.getDest(move) != null) break;
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} else break;
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}
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// Vertical moves to the bottom
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for (int i = pos.y + 1; i < 8; i++) {
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Move move = new Move(pos, new Position(pos.x, i));
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if (board.getDest(move) == null || board.getDest(move).getColor() != getColor()) {
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moves.add(move);
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if (board.getDest(move) != null) break;
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} else break;
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}
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// Diagonal moves to the lower right
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for (int i = pos.x + 1, j = pos.y + 1; i < 8 && j < 8; i++, j++) {
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Move move = new Move(pos, new Position(i, j));
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if (board.getDest(move) == null || board.getDest(move).getColor() != getColor()) {
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moves.add(move);
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if (board.getDest(move) != null) break;
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} else break;
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}
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// Diagonal moves to the lower left
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for (int i = pos.x - 1, j = pos.y + 1; i >= 0 && j < 8; i--, j++) {
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Move move = new Move(pos, new Position(i, j));
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if (board.getDest(move) == null || board.getDest(move).getColor() != getColor()) {
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moves.add(move);
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if (board.getDest(move) != null) break;
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} else break;
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}
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// Diagonal moves to the upper right
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for (int i = pos.x + 1, j = pos.y - 1; i < 8 && j >= 0; i++, j--) {
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Move move = new Move(pos, new Position(i, j));
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if (board.getDest(move) == null || board.getDest(move).getColor() != getColor()) {
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moves.add(move);
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if (board.getDest(move) != null) break;
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} else break;
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}
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// Diagonal moves to the upper left
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for (int i = pos.x - 1, j = pos.y - 1; i >= 0 && j >= 0; i--, j--) {
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Move move = new Move(pos, new Position(i, j));
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if (board.getDest(move) == null || board.getDest(move).getColor() != getColor()) {
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moves.add(move);
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if (board.getDest(move) != null) break;
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} else break;
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}
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return moves;
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}
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@Override
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public Type getType() { return Type.QUEEN; }
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}
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