X-Git-Url: https://fleuret.org/cgi-bin/gitweb/gitweb.cgi?a=blobdiff_plain;f=universe.cc;h=8dec7f5b016dc75bb66422b4e2c575334bcd5382;hb=9284cd8bb4fe83fad551a6b51fc1f8c9c95b6591;hp=d349e40bfbce0db0c139d00cbbe4db61ac1a5750;hpb=9e314265ccd6163e8a79bdbb91a8bfb46ff73bca;p=universe.git

diff --git a/universe.cc b/universe.cc
index d349e40..8dec7f5 100644
--- a/universe.cc
+++ b/universe.cc
@@ -7,18 +7,20 @@
 #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);
 }
 
@@ -104,7 +106,7 @@ bool Universe::update(scalar_t dt) {
   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;
@@ -116,22 +118,57 @@ Polygon *Universe::pick_polygon(scalar_t x, scalar_t y) {
   return 0;
 }
 
-void Universe::print_fig(ostream &os) {
-  os << "#FIG 3.2" << endl;
-  os << "Portrait" << endl;
-  os << "Center" << endl;
-  os << "Metric" << endl;
-  os << "A4      " << endl;
-  os << "100.00" << endl;
-  os << "Single" << endl;
-  os << "-2" << endl;
-  os << "1200 2" << endl;
-  for(int n = 0; n < _nb_polygons; n++) if(_polygons[n]) _polygons[n]->print_fig(os);
+#ifdef XFIG_SUPPORT
+void Universe::print_xfig(XFigTracer *tracer) {
+  for(int n = 0; n < _nb_polygons; n++) {
+    if(_polygons[n]) {
+      _polygons[n]->color_xfig(tracer);
+    }
+  }
+  for(int n = 0; n < _nb_polygons; n++) {
+    if(_polygons[n]) {
+      _polygons[n]->print_xfig(tracer);
+    }
+  }
 }
+#endif
 
+#ifdef X11_SUPPORT
 void Universe::draw(SimpleWindow *window) {
-  for(int n = 0; n < _nb_polygons; n++) if(_polygons[n]) _polygons[n]->draw(window);
-  for(int n = 0; n < _nb_polygons; n++) if(_polygons[n]) _polygons[n]->draw_contours(window);
+  for(int n = 0; n < _nb_polygons; n++) {
+    if(_polygons[n]) {
+      _polygons[n]->draw(window);
+    }
+  }
+
+  for(int n = 0; n < _nb_polygons; n++) {
+    if(_polygons[n]) {
+      _polygons[n]->draw_contours(window);
+    }
+  }
+}
+#endif
+
+void Universe::draw(Canvas *canvas) {
+  for(int n = 0; n < _nb_polygons; n++) {
+    if(_polygons[n]) {
+      _polygons[n]->draw(canvas);
+    }
+  }
+
+  for(int n = 0; n < _nb_polygons; n++) {
+    if(_polygons[n]) {
+      _polygons[n]->draw_contours(canvas);
+    }
+  }
+}
+
+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) {