#include "universe.h"
Universe::Universe(int nb_max_polygons,
- scalar_t xmax, scalar_t ymax) : _xmax(xmax), _ymax(ymax),
- _nb_max_polygons(nb_max_polygons), _nb_polygons(0) {
+ scalar_t width, scalar_t height) : _width(width),
+ _height(height),
+ _nb_max_polygons(nb_max_polygons),
+ _nb_polygons(0) {
_polygons = new Polygon *[_nb_max_polygons];
for(int n = 0; n < _nb_max_polygons; n++) _polygons[n] = 0;
}
Universe::~Universe() {
- for(int n = 0; n < _nb_polygons; n++) if(_polygons[n]) delete _polygons[n];
+ clear();
delete[] _polygons;
}
-void Universe::initialize(Polygon *p) {
+void Universe::initialize_polygon(Polygon *p) {
p->initialize(_nb_max_polygons);
}
bool result = false;
apply_collision_forces(dt);
for(int n = 0; n < _nb_polygons; n++) if(_polygons[n]) {
- _polygons[n]->apply_border_forces(dt, _xmax, _ymax);
+ _polygons[n]->apply_border_forces(dt, _width, _height);
result |= _polygons[n]->update(dt);
}
return result;
return 0;
}
+#ifdef XFIG_SUPPORT
void Universe::print_xfig(XFigTracer *tracer) {
for(int n = 0; n < _nb_polygons; n++) {
if(_polygons[n]) {
}
}
}
+#endif
#ifdef X11_SUPPORT
void Universe::draw(SimpleWindow *window) {
}
#endif
-#ifdef CAIRO_SUPPORT
-void Universe::draw(cairo_t *context_resource) {
+void Universe::draw(Canvas *canvas) {
for(int n = 0; n < _nb_polygons; n++) {
if(_polygons[n]) {
- _polygons[n]->draw(context_resource);
+ _polygons[n]->draw(canvas);
}
}
for(int n = 0; n < _nb_polygons; n++) {
if(_polygons[n]) {
- _polygons[n]->draw_contours(context_resource);
+ _polygons[n]->draw_contours(canvas);
}
}
}
-#endif
+
+void Universe::apply_gravity(scalar_t dt, scalar_t fx, scalar_t fy) {
+ for(int n = 0; n < _nb_polygons; n++)
+ if(_polygons[n])
+ _polygons[n]->apply_force(dt,
+ _polygons[n]->_center_x, _polygons[n]->_center_y,
+ fx, fy);
+}
void Universe::apply_collision_forces(scalar_t dt) {
const int nb_axis = 2;