/**
 * 
 */
package suicideChess;

/**
 * @author djib
 * 
 * This file contains the moves representation.
 * 
 * $LastChangedDate$
 * $LastChangedRevision$
 * $LastChangedBy$
 */

public class Piece {
	/*************
	 * CONSTANTS *
	 *************/
	
	
	/**
	 * Take really good care if you want to change those values
	 * Class BitBoard makes intensive use of those
	 */
	public static final int NONE=-1;
	//Contants used to detect color
	public static final int WHITE=0;
	public static final int BLACK=1;
	//Constants used in the board representation
	public static final int WHITE_PIECE = WHITE;
	public static final int BLACK_PIECE = BLACK;
	public static final int PAWN = 2;
	public static final int WHITE_PAWN = PAWN + WHITE;
	public static final int BLACK_PAWN = PAWN + BLACK;
	public static final int KING = 4;
	public static final int WHITE_KING = KING + WHITE;
	public static final int BLACK_KING = KING + BLACK;
	public static final int QUEEN = 6;
	public static final int WHITE_QUEEN = QUEEN + WHITE;
	public static final int BLACK_QUEEN = QUEEN + BLACK;
	public static final int BISHOP = 8;
	public static final int WHITE_BISHOP = BISHOP + WHITE;
	public static final int BLACK_BISHOP = BISHOP + BLACK;
	public static final int KNIGHT = 10;
	public static final int WHITE_KNIGHT = KNIGHT + WHITE;
	public static final int BLACK_KNIGHT = KNIGHT + BLACK;
	public static final int ROOK = 12;
	public static final int WHITE_ROOK = ROOK + WHITE;
	public static final int BLACK_ROOK = ROOK + BLACK;

	
	//Constants used for promotion (as used in the xboard protocol)
	public static final char KING_CHAR='k';
	public static final char QUEEN_CHAR='q';
	public static final char BISHOP_CHAR='b';
	public static final char KNIGHT_CHAR='n';
	public static final char ROOK_CHAR='r';
	//may be useful
	public static final char PAWN_CHAR='p';
	
	/****************
	 * PRIVATE DATA *
	 ****************/
	
	private int pieceNumber;
	
	/***************
	 * CONSTRUCTOR *
	 ***************/
	
	public Piece(int piece) {
		pieceNumber = piece;
	}
	
	public Piece(char piece, int color) {
		pieceNumber = NONE;
		switch (piece) {
			case PAWN_CHAR:
				pieceNumber = PAWN + color;
				break;
			case KING_CHAR:
				pieceNumber = KING + color;
				break;
			case QUEEN_CHAR:
				pieceNumber = QUEEN + color;
				break;
			case BISHOP_CHAR:
				pieceNumber = BISHOP + color;
				break;
			case KNIGHT_CHAR:
				pieceNumber = KNIGHT + color;
				break;
			case ROOK_CHAR:
				pieceNumber = ROOK + color;
				break;
		}
	}
		
	/***********
	 * METHODS *
	 ***********/
	
	public int getColor() {
		return pieceNumber%2; //cf declaration of BLACK and WHITE above and the pieces above.
	}
	
	public int getPieceNumber() {
		return pieceNumber;
	}
}