public void Put(position p_first)
{
snake_el.Enqueue(p_first);
}
public bool snake_eating(position newHead)
{
return(newHead.col == ap.col() && newHead.row == ap.row());
}
public bool Contains(position p)
{
return(this.snake_el.Contains(p));
}
public bool check_snake_dead(position newhead)
{
return(sn.Contains(newhead));
}