23 lines
531 B
C
23 lines
531 B
C
#ifndef GRAVITY_H_INCLUDED
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#define GRAVITY_H_INCLUDED
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#include "balls.h"
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struct gravity_vector {
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double x;
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double y;
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};
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extern void gravity_constant_field (double x, double y);
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extern void gravity_newton_field (double r, double g);
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extern void gravity_get_vector (struct gravity_vector * v, const struct ball * b);
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extern void gravity_draw (cairo_t * cr);
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extern void gravity_change (double dx, double dy);
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extern void gravity_show ();
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extern void gravity_collisions (struct ball * begin, struct ball * end);
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#endif
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