package schack;

import java.awt.Point;
import java.io.IOException;
import java.util.ArrayList;

public abstract class LongWalkers extends PieceKnownIfMoved {

    public LongWalkers(boolean isWhite, Point startingPosition) throws IOException {
        super(isWhite, startingPosition);
    }

    /**
     * Generell metod för att generera möjliga drag för LongWalkers
     *
     * @param directions vilka håll. Exempel: <pre>
     * {@code new int[][]{{1, 0}, {-1, 0}, {0, 1}, {0, -1}}}</pre> för att gå
     * som ett torn
     *
     * @param pieces
     * @param allowedToRecurse
     * @return
     */
    ArrayList<Point> getMoves(int[][] directions, Piece[][] pieces, boolean allowedToRecurse) {
        final ArrayList<Point> movable = new ArrayList<>();

        for (int[] xy : directions) {
            int loopX = this.position.x, loopY = this.position.y;
            while (loopX + xy[0] >= 0 && loopX + xy[0] <= 7 && loopY + xy[1] >= 0 && loopY + xy[1] <= 7) {
                loopX += xy[0];
                loopY += xy[1];
                final boolean shouldBreak = addMovesIfCan(new Point(loopX, loopY), movable, pieces, allowedToRecurse);
                if (shouldBreak) {
                    break;
                }
            }
        }

        return movable;
    }

}