MoveDescription.java

public class MoveDescription {

	private String pieceToMove;
	private int destinationColumn, destinationRow;

	public MoveDescription(String pieceToMove, int destinationColumn, int destinationRow) {
		this.pieceToMove = pieceToMove;
		this.destinationColumn = destinationColumn;
		this.destinationRow = destinationRow;
	}

	public String getPieceToMove() {
		return pieceToMove;
	}

	public int getDestinationColumn() {
		return destinationColumn;
	}

	public int getDestinationRow() {
		return destinationRow;
	}

	public String toString() {
		return "(" + pieceToMove + ", " + destinationColumn + ", " + destinationRow + ")";
	}

	public int toInt() {
		// Format: bit 0 indicates which piece to move; 0 for king, 1 for rook
		// bits 1-2 indicate column, bits 3-4 indicate row.
		int piecebit = 0;
		switch (pieceToMove) {
		case "king":
			piecebit = 0;
			break;
		case "rook":
			piecebit = 1;
			break;
		}
		return (piecebit) + ((destinationColumn - 1) << 1) + ((destinationRow - 1) << 3);
	}

	public MoveDescription(int moveint) {
		int piecebit = moveint - ((moveint >> 1) << 1);
		switch (piecebit) {
		case 0:
			pieceToMove = "king";
			break;
		case 1:
			pieceToMove = "rook";
			break;
		}
		destinationColumn = ((moveint >> 1) - ((moveint >> 3) << 2)) + 1;
		destinationRow = ((moveint >> 3) - ((moveint >> 5) << 2)) + 1;
	}
}