/***********/
/* list.h  */
/***********/

#include <windows.h>

#define MAX_ELEM 100

class list {
  int nelem;
  POINT points[MAX_ELEM];
  int n;
public:
  list() {
    nelem = 0;
    n = 0;
    points[0].x=0;
    points[0].y=0;
  }

  ~list() { nelem = 0; }

  int add(POINT p) {
    if ( nelem < MAX_ELEM ) points[nelem++] = p;
    return nelem; 
  }

  int add(int x, int y) { POINT p; p.x = x; p.y = y;  return add(p); }

  POINT &last() { return points[max(nelem-1,0)]; }

  POINT &first() { n = 1; return points[0]; }

  POINT &next() { if ( end() ) return points[max(nelem-1,0)]; return points[n++]; }

  int end() {  return ( n >= nelem );  }

}; /* list */