41 lines
1.5 KiB
Java
41 lines
1.5 KiB
Java
import java.util.*;
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import javax.swing.ImageIcon;
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public class Pawn extends Piece {
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boolean hasMoved;
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int colorDir;
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public Pawn(int x, int y, String color) {
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super(x, y, color, new ImageIcon("sprites/" + color + "/pawn.png").getImage());
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hasMoved = false;
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colorDir = color.equals("White") ? -1 : 1;
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}
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public ArrayList<Position> getLegalMoves(Board board) {
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ArrayList<Position> positions = new ArrayList<Position>();
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// diagonal moves (captures)
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if (Board.inBounds(new Position(pos.x + 1, pos.y + colorDir))
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&& !board.isOpen(new Position(pos.x + 1, pos.y + colorDir))
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&& !board.board[pos.x + 1][pos.y + colorDir].color.equals(this.color)) {
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positions.add(new Position(pos.x + 1, pos.y + colorDir));
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}
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if (Board.inBounds(new Position(pos.x - 1, pos.y + colorDir))
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&& !board.isOpen(new Position(pos.x - 1, pos.y + colorDir))
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&& !board.board[pos.x - 1][pos.y + colorDir].color.equals(this.color)) {
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positions.add(new Position(pos.x - 1, pos.y + colorDir));
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}
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// one square in front: if blocked return early
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if (Board.inBounds(new Position(pos.x, pos.y + colorDir))
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&& board.isOpen(new Position(pos.x, pos.y + colorDir))) {
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positions.add(new Position(pos.x, pos.y + colorDir));
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} else return positions;
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// two squares in front
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if (!hasMoved && board.isOpen(new Position(pos.x, pos.y + 2 * colorDir))) {
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positions.add(new Position(pos.x, pos.y + 2 * colorDir));
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}
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return positions;
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}
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}
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