48 lines
844 B
C++
48 lines
844 B
C++
#ifndef BALLS_H_INCLUDED
|
|
#define BALLS_H_INCLUDED
|
|
|
|
#include <gtk/gtk.h>
|
|
|
|
class ball_face;
|
|
|
|
class ball {
|
|
public:
|
|
double x;
|
|
double y;
|
|
unsigned int radius;
|
|
|
|
double v_x;
|
|
double v_y;
|
|
|
|
double angle;
|
|
double v_angle;
|
|
|
|
ball_face * face;
|
|
|
|
void draw (cairo_t * cr) const;
|
|
};
|
|
|
|
extern ball * balls;
|
|
extern unsigned int n_balls;
|
|
|
|
extern unsigned int radius_min;
|
|
extern unsigned int radius_max;
|
|
|
|
extern unsigned int v_max;
|
|
extern unsigned int v_min;
|
|
|
|
extern unsigned int v_angle_min;
|
|
extern unsigned int v_angle_max;
|
|
|
|
extern const char * face_filename;
|
|
extern int face_rotation;
|
|
|
|
extern void balls_init ();
|
|
extern void balls_destroy ();
|
|
extern void ball_update_state (ball * p);
|
|
extern void ball_elastic_collision (ball * p, ball * q);
|
|
extern void ball_reposition (ball * b);
|
|
extern void balls_draw (cairo_t * cr);
|
|
|
|
#endif
|