/*************************************************************
add_point: add point to region point list

returns: TRUE (1) point added ok, FALSE (0) could not add, list full
*************************************************************/

#include "globals.h"
#include <grass/raster.h>
#include <grass/glocale.h>


int 
add_point (int x, int y)
{
  int last;

  if ((last = Region.npoints - 1) >= 0
      && x == Region.point[last].x
      && y == Region.point[last].y) return(1);

  if (Region.npoints >= MAX_VERTEX)
    {
      G_warning(_("Can't mark another point.  Only %d points allowed.  Sorry."), MAX_VERTEX);
      return (0);
    }

  last++;
  Region.point[last].x = x;
  Region.point[last].y = y;
  Region.npoints++ ;

  /* draw the added line in yellow */
  if (Region.npoints > 1) {
    R_standard_color(RED);
    R_move_abs(Region.point[last-1].x, Region.point[last-1].y);
    R_cont_abs(Region.point[last].x, Region.point[last].y);
/*    if (Region.view == VIEW_MAP1_ZOOM)
      line_in_map1(Region.point[last-1].x, Region.point[last-1].y,
		   Region.point[last].x, Region.point[last].y, RED); */
  }

  return (1);
}