import Board;
import Position;
/**
 * A class Piece to store and change its information.
 *
 * @March 2000
 * @author Ming Gu, Yasir Mehboob, Ammar Bandukwala, Mustally Hussain,
 * Shiva Kabra.
 */
public interface Piece 
{
    // +--------+---------------------------------------------
    // | Fields |
    // +--------+

    /** The color of the piece.
    public String color;

    The position of the piece.
    public Position position;

    The number of times the piece has been flipped.
    public int flipnumber;

    The board this piece is on.
    public Board board;
    */
    // +--------------+-----------------------------------------
    // | Constructors |
    // +--------------+
    /**
     * Create a piece with its position, color and Board as its
     * parameters.
     */

    // +------------+-----------------------------------------
    // | Extractors |
    // +------------+

    /**
     * Some other objects may ask a piece for its information,
     * so some necessary extractors are needed.
     */

    /** Get a piece's row number. */
    public int getRow();

    /** Get a piece's column number. */
    public int getColumn();

    /** Get a piece's color. */
    public String getColor();

    /** Get the piece's flip number. */
    public int getFlip();



    // +---------+--------------------------------------------
    // | Methods |
    // +---------+

    /**
     * Move a piece, with nothing changed but its position.
     * Update the piece's own position field.
     * Call board.movePiece(this.rownumber,
     *                      this.columnnumber,
     *                      newrownumber,
     *                      newcolumnnumber)
     * to update its index on board.
     */
    public void pieceMove ();


    /**
     * Flip to a different color and update its flipnumber
     * by adding 1.
     */
    public void flip();
    
} // interface Piece