-////////////////////////////////////////////////////////////////////////////////
-// This program is free software; you can redistribute it and/or //
-// modify it under the terms of the GNU General Public License //
-// version 2 as published by the Free Software Foundation. //
-// //
-// This program is distributed in the hope that it will be useful, but //
-// WITHOUT ANY WARRANTY; without even the implied warranty of //
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU //
-// General Public License for more details. //
-// //
-// Written and (C) by François Fleuret //
-// Contact <francois.fleuret@epfl.ch> for comments & bug reports //
-////////////////////////////////////////////////////////////////////////////////
-
-// $Id: universe.h,v 1.21 2006-12-17 19:22:19 fleuret Exp $
+// Written and (C) by Francois Fleuret
+// Contact <francois.fleuret@idiap.ch> for comments & bug reports
#ifndef UNIVERSE_H
#define UNIVERSE_H
#include <iostream>
#include <cmath>
-using namespace std;
-
#include "misc.h"
-#include "simple_window.h"
+#include "canvas.h"
#include "polygon.h"
+#ifdef X11_SUPPORT
+#include "simple_window.h"
+#endif
+
+using namespace std;
+
class Universe {
- scalar_t _xmax, _ymax;
+ scalar_t _width, _height;
public:
int _nb_max_polygons, _nb_polygons;
Polygon **_polygons;
- Universe(int nb_max_polygons, scalar_t xmax, scalar_t ymax);
+
+ inline scalar_t width() { return _width; }
+ inline scalar_t height() { return _height; }
+
+ Universe(int nb_max_polygons, scalar_t width, scalar_t height);
// 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);
- void print_fig(ostream &os);
+
+#ifdef XFIG_SUPPORT
+ void print_xfig(XFigTracer *tracer);
+#endif
+
+#ifdef X11_SUPPORT
void draw(SimpleWindow *window);
+#endif
+
+#ifdef CAIRO_SUPPORT
+ void draw(Canvas *canvas);
};
+#endif
#endif