point.h

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#ifndef _POINT_H_
#define _POINT_H_
 
#include <stdbool.h>
 
typedef struct Point {
  double x;
  double y;
  struct Point* next;
} bl_point;
 
typedef struct Point_List {
  struct Point* head;
  struct Point* tail;
} bl_point_list;
 
bl_point_list* bl_make_point_list();
 
void bl_add_point_xy(bl_point_list* list, double x, double y);
 
void bl_add_point(bl_point_list* list, bl_point* p);
 
int bl_point_list_count(bl_point_list* list);
 
void bl_point_list_destroy(bl_point_list* list);
 
bl_point* bl_make_point(double x, double y);
 
bl_point* bl_lerp_point(double t, bl_point* p0, bl_point* p1);
 
bl_point* bl_random_point(double x, double y, double w, double h);
 
bl_point* bl_random_point_in_circle(double x, double y, double r);
 
bl_point* bl_random_point_in_triangle(bl_point* p0, bl_point* p1, bl_point* p2);
 
bl_point* bl_point_from_polar(double angle, double radius);
 
double bl_point_distance(bl_point* p0, bl_point* p1);
 
double bl_point_magnitude(bl_point* p);
 
double bl_point_angle(bl_point* p);
 
void bl_point_translate(bl_point* p, double x, double y);
 
void bl_point_scale(bl_point* p, double sx, double sy);
 
void bl_point_rotate(bl_point* p, double angle);
 
double bl_dot_product(bl_point* p0, bl_point* p1, bl_point* p2, bl_point* p3);
 
double bl_angle_between(bl_point* p0, bl_point* p1, bl_point* p2, bl_point* p3);
 
bl_point* bl_bezier_point(bl_point* p0, bl_point* p1, bl_point* p2, bl_point* p3, double t);
 
bl_point* bl_quadratic_point(bl_point* p0, bl_point* p1, bl_point* p2, double t);
 
bl_point* bl_segment_intersect(bl_point* p0, bl_point* p1, bl_point* p2, bl_point* p3);
 
bl_point* bl_tangent_point_to_circle(bl_point* p, double x, double y, double r, bool anticlockwise);
 
#endif