// Position class, for use with Maze
// august 1996, kt
/**
 * Class recording location and state of a cell and also whether or not it has
 * been visited.
 */
public class Position {
	// fields
	protected int row, col; // row and column of cell

	// constructor

	public Position(int _row, int _col) {
		row = _row;
		col = _col;
	}
	// methods
	/**
	 * post: Return row corresponding to the cell
	 */
	public int getRow() {
		return row;
	}

	/**
	 * post: Return column corresponding to the cell
	 */
	public int getCol() {
		return col;
	}

	/**
	 * post: Return true iff row and column is same as for p
	 */
	public boolean equals(Position p) {
		return ((row == p.getRow()) && (col == p.getCol()));
	}
	
	// post: returns position above this one
	public Position getNorth() {
		return new Position(row - 1, col);
	}

	// post: returns position below this one
	public Position getSouth() {
		return new Position(row + 1, col);
	}

	// post: returns position to right of this one
	public Position getEast() {
		return new Position(row, col + 1);
	}

	// post: returns position to left of this one
	public Position getWest() {
		return new Position(row, col - 1);
	}

	/**
	 * post: Return String with location of cell
	 */
	public String toString() {
		return new String("(" + row + "," + col + ")");
	}
}