#ifndef __DIR_H__
#define __DIR_H__

#include <iostream.h>

enum Dir
{
    NORTH  = 0,
    EAST   = 1,
    SOUTH  = 2,
    WEST   = 3
};

Dir opposite( Dir d );
Dir nextCW( Dir d );
Dir nextCCW( Dir d );

ostream& operator <<( ostream& os, const Dir& d );

#endif // __DIR_H__