#include <iostream>
#include <cmath>
+#ifdef CAIRO_SUPPORT
+#include <cairo.h>
+#endif
+
using namespace std;
#include "misc.h"
public:
int _nb_max_polygons, _nb_polygons;
Polygon **_polygons;
+
Universe(int nb_max_polygons, scalar_t xmax, scalar_t ymax);
// The destructor deletes all the added polygons
~Universe();
+
void initialize(Polygon *p);
void clear();
void add_polygon(Polygon *p);
bool collide(Polygon *p);
+
// Compute collisions between projections of the polygons on a few
// axis to speed up the computation
void compute_pseudo_collisions(int nb_axis, int *nb_colliding_axis);
void apply_collision_forces(scalar_t dt);
bool update(scalar_t dt);
+
Polygon *pick_polygon(scalar_t x, scalar_t y);
+
void print_xfig(XFigTracer *tracer);
void draw(SimpleWindow *window);
+
+#ifdef CAIRO_SUPPORT
+ void draw(cairo_t *context_resource);
+#endif
};
#endif