#include "contour.h"

NODE *
addpts_slow (NODE *zero, int r, int c, int rr, int cc, int *node_ct)
{
	NODE *add_in_slow ();
	CELL value;
	
	if (rr < nrows - 1)
	{
		bseg_get (&bseen, &value, rr+1, cc);
		if (!value)
			zero = add_in_slow (r,c,rr+1,cc,zero,node_ct);
	}
	if (cc < ncols - 1)
	{
		bseg_get (&bseen, &value, rr, cc+1);
		if (!value)
			zero = add_in_slow (r,c,rr,cc+1,zero,node_ct);
	}
	if (rr > 0)
	{
		bseg_get (&bseen, &value, rr-1, cc);
		if (!value)
			zero = add_in_slow (r,c,rr-1,cc,zero,node_ct);
	}
	if (cc > 0)
	{
		bseg_get (&bseen, &value, rr, cc-1);
		if (!value)
			zero = add_in_slow (r,c,rr,cc-1,zero,node_ct);
	}
	return (zero);
}

NODE *
addpts (NODE *zero, int r, int c, int rr, int cc, int *node_ct)
{
	NODE *add_in();
	
	if (rr < nrows - 1)
	{
		if(!flag_get (seen,rr+1,cc))	
			zero = add_in(r,c,rr+1,cc,zero,node_ct);
	}
	if (cc < ncols - 1)
	{
		if(!flag_get (seen,rr,cc+1))	
			zero = add_in(r,c,rr,cc+1,zero,node_ct);
	}
	if (rr > 0)
	{
		if(!flag_get (seen,rr-1,cc))	
			zero = add_in(r,c,rr-1,cc,zero,node_ct);
	}
	if (cc > 0)
	{
		if(!flag_get (seen,rr,cc-1))	
			zero = add_in(r,c,rr,cc-1,zero,node_ct);
	}
	return (zero);
}