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#ifndef COORDIT_H
#define COORDIT_H
class rectangle_iterator :
public std::iterator<std::forward_iterator_tag, coord_def>
{
public:
rectangle_iterator(const coord_def& corner1, const coord_def& corner2);
explicit rectangle_iterator(int x_border_dist, int y_border_dist = -1);
operator bool() const;
coord_def operator *() const;
const coord_def* operator->() const;
rectangle_iterator& operator ++ ();
rectangle_iterator operator ++ (int);
private:
coord_def current, topleft, bottomright;
};
class radius_iterator : public std::iterator<std::forward_iterator_tag,
coord_def>
{
public:
radius_iterator( const coord_def& center, int radius,
bool roguelike_metric = true,
bool require_los = true,
bool exclude_center = false,
const env_show_grid* losgrid = NULL );
bool done() const;
void reset();
operator bool() const { return !done(); }
coord_def operator *() const;
const coord_def* operator->() const;
const radius_iterator& operator ++ ();
radius_iterator operator ++ (int);
private:
void step();
bool on_valid_square() const;
coord_def location, center;
int radius;
bool roguelike_metric, require_los, exclude_center;
const env_show_grid* losgrid;
bool iter_done;
};
class adjacent_iterator : public radius_iterator
{
public:
explicit adjacent_iterator( const coord_def& pos,
bool _exclude_center = true ) :
radius_iterator(pos, 1, true, false, _exclude_center) {}
};
#endif
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