*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
#define MIN_DEPTH 2 /* rocks disappar when they get this close */
#define MAX_DEPTH 60 /* this is where rocks appear */
#define MIN_DEPTH 2 /* rocks disappar when they get this close */
#define MAX_DEPTH 60 /* this is where rocks appear */