#include <cmath>
#include "misc.h"
+#include "canvas.h"
#include "polygon.h"
#ifdef X11_SUPPORT
#include "simple_window.h"
#endif
-#ifdef CAIRO_SUPPORT
-#include <cairo.h>
-#endif
-
using namespace std;
class Universe {
// The destructor deletes all the added polygons
~Universe();
- void initialize(Polygon *p);
+ void initialize_polygon(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_gravity(scalar_t dt, scalar_t fx, scalar_t fy);
void apply_collision_forces(scalar_t dt);
bool update(scalar_t dt);
Polygon *pick_polygon(scalar_t x, scalar_t y);
+#ifdef XFIG_SUPPORT
void print_xfig(XFigTracer *tracer);
+#endif
#ifdef X11_SUPPORT
void draw(SimpleWindow *window);
#endif
#ifdef CAIRO_SUPPORT
- void draw(cairo_t *context_resource);
-#endif
+ void draw(Canvas *canvas);
};
+#endif
#endif