X-Git-Url: https://fleuret.org/cgi-bin/gitweb/gitweb.cgi?a=blobdiff_plain;f=universe.h;h=07cf7f02b28b50de0731fdca10ad52f41451ecc2;hb=599bf3fa2eb01b05ec677b628e65adb2fe4f91c3;hp=a521f5981b9a996455e47816507159fb9eff2793;hpb=6408d9fe6e1b82ad9aa71d6e1702ec100a8c3ca1;p=universe.git

diff --git a/universe.h b/universe.h
index a521f59..07cf7f0 100644
--- a/universe.h
+++ b/universe.h
@@ -31,7 +31,7 @@ public:
   // 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);
@@ -39,6 +39,7 @@ public:
   // 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);
 
@@ -52,7 +53,9 @@ public:
   void draw(SimpleWindow *window);
 #endif
 
+#ifdef CAIRO_SUPPORT
   void draw(Canvas *canvas);
 };
+#endif
 
 #endif