2021-12-01 20:18:19 +01:00
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#ifndef BALLS_H_INCLUDED
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#define BALLS_H_INCLUDED
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2021-12-11 21:32:48 +01:00
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#include <gtk/gtk.h>
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2022-06-01 11:09:35 +02:00
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#include "vec2d.h"
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2022-05-30 18:05:53 +02:00
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class ball_face;
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2021-12-01 20:18:19 +01:00
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2022-05-30 18:05:53 +02:00
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class ball {
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public:
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2021-12-01 20:18:19 +01:00
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unsigned int radius;
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2022-06-01 11:09:35 +02:00
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vec2d position;
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vec2d velocity;
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2021-12-01 20:18:19 +01:00
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double angle;
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double v_angle;
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2022-05-30 18:05:53 +02:00
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ball_face * face;
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void draw (cairo_t * cr) const;
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2021-12-01 20:18:19 +01:00
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};
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2022-05-30 18:05:53 +02:00
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extern ball * balls;
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2021-12-01 20:18:19 +01:00
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extern unsigned int n_balls;
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2021-12-11 21:32:48 +01:00
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extern unsigned int radius_min;
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extern unsigned int radius_max;
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extern unsigned int v_max;
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extern unsigned int v_min;
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extern unsigned int v_angle_min;
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extern unsigned int v_angle_max;
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extern const char * face_filename;
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extern int face_rotation;
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extern void balls_init ();
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extern void balls_destroy ();
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2022-05-30 18:05:53 +02:00
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extern void ball_update_state (ball * p);
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2022-12-27 17:54:40 +01:00
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extern void ball_ball_collision (ball * p, ball * q);
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2022-05-30 18:05:53 +02:00
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extern void ball_reposition (ball * b);
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extern void balls_draw (cairo_t * cr);
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2022-12-27 17:54:40 +01:00
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extern void restitution_coefficient_draw (cairo_t * cr);
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extern void restitution_coefficient_set (double c);
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extern double restitution_coefficient_get ();
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extern void restitution_coefficient_change (double d);
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2021-12-01 20:18:19 +01:00
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#endif
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