Cosmetics + started to add support for cairo drawing to eventually replace the X...

[universe.git] / universe.h

diff --git a/universe.h b/universe.h
index d411bb6..3bbbf4a 100644 (file)
--- a/universe.h
+++ b/universe.h
@@ -8,6 +8,10 @@
 #include <iostream>
 #include <cmath>
 
+#ifdef CAIRO_SUPPORT
+#include <cairo.h>
+#endif
+
 using namespace std;
 
 #include "misc.h"
@@ -19,21 +23,30 @@ class Universe {
 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_fig(XFigTracer *tracer);
+
+  void print_xfig(XFigTracer *tracer);
   void draw(SimpleWindow *window);
+
+#ifdef CAIRO_SUPPORT
+  void draw(cairo_t *context_resource);
+#endif
 };
 
 #endif