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#ifndef COORD_CIRCLE_H
#define COORD_CIRCLE_H
// Internal to circle_def.
enum shape_type
{
SH_SQUARE, // square around an origin
SH_CIRCLE, // circle around an origin
};
// External interface to circle_def shapes.
enum circle_type
{
C_SQUARE,
C_CIRCLE, // circle specified by pre-squared radius
C_POINTY, // circle with square radius r*r
C_ROUND, // circle with square radius r*r+1
};
class rectangle_iterator;
class rect_def
{
coord_def min;
coord_def max;
public:
rect_def() {}
rect_def(const coord_def &min_, const coord_def &max_)
: min(min_), max(max_) {}
bool contains(const coord_def& p) const;
rect_def intersect(const rect_def& other) const;
rectangle_iterator iter() const;
};
#define RECT_MAP_BOUNDS (rect_def(coord_def(X_BOUND_1, Y_BOUND_1), \
coord_def(X_BOUND_2, Y_BOUND_2)))
class circle_iterator;
/*
* Circles of different shapes; see circle_type for these.
*
* radius/radius_sq don't have meaning when los_radius is set.
*/
class circle_def
{
// Are we tracking global LOS radius?
bool los_radius;
shape_type shape;
coord_def origin;
// Check against map bounds for containment?
bool check_bounds;
int radius;
int radius_sq;
rect_def bbox;
public:
// Circle around (0,0) with radius that tracks global LOS radius.
// No bounds checking.
circle_def();
// Circle around origin with shape of given circle.
circle_def(const coord_def &origin_, const circle_def &bds);
// Circle around (0,0) of specified shape and size.
// No bounds checking.
explicit circle_def(int param, circle_type ctype = C_SQUARE);
// Circle around given origin of specified shape and size.
circle_def(const coord_def &origin_, int param, circle_type ctype = C_SQUARE);
bool contains(const coord_def &p) const;
const rect_def& get_bbox() const;
const coord_def& get_center() const;
circle_iterator iter() const;
private:
void init(int param, circle_type ctype);
void init_bbox();
};
#endif
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