source/3d/track.cpp

   1 #include <cmath>
   2 #include <msp/gl/matrix.h>
   3 #include <msp/gl/renderer.h>
   4 #include "libr2c2/tracktype.h"
   5 #include "endpoint.h"
   6 #include "layout.h"
   7 #include "path.h"
   8 #include "track.h"
   9 #include "tracktype.h"
  10
  11 using namespace std;
  12 using namespace Msp;
  13
  14 namespace R2C2 {
  15
  16 Track3D::Track3D(Layout3D &l, Track &t):
  17         Object3D(l, t),
  18         GL::ObjectInstance(l.get_catalogue().get_track(t.get_type()).get_object()),
  19         track(t),
  20         type(layout.get_catalogue().get_track(track.get_type())),
  21         path(new Path3D(*this))
  22 {
  23         layout.get_scene().add(*this);
  24
  25         const vector<TrackType::Endpoint> &type_eps = track.get_type().get_endpoints();
  26         const vector<Track *> &links = track.get_links();
  27         for(unsigned i=0; i<type_eps.size(); ++i)
  28         {
  29                 if(!links[i] || links[i]>&track)
  30                         endpoints.push_back(new Endpoint3D(*this, i));
  31                 else
  32                         endpoints.push_back(0);
  33         }
  34
  35         track.signal_link_changed.connect(sigc::mem_fun(this, &Track3D::link_changed));
  36 }
  37
  38 Track3D::~Track3D()
  39 {
  40         delete path;
  41
  42         layout.get_scene().remove(*this);
  43
  44         for(vector<Endpoint3D *>::iterator i=endpoints.begin(); i!=endpoints.end(); ++i)
  45                 delete *i;
  46 }
  47
  48 Vector Track3D::get_node() const
  49 {
  50         Geometry::BoundingBox<float, 3> bbox = track.get_type().get_shape()->get_axis_aligned_bounding_box();
  51         const Vector &minp = bbox.get_minimum_point();
  52         const Vector &maxp = bbox.get_maximum_point();
  53
  54         return matrix*((minp+maxp)/2.0f+Vector(0, 0, 0.02));
  55 }
  56
  57 void Track3D::setup_render(Msp::GL::Renderer &renderer, const GL::Tag &) const
  58 {
  59         renderer.matrix_stack() *= matrix;
  60 }
  61
  62 void Track3D::link_changed(unsigned i, Track *trk)
  63 {
  64         if(!trk || trk>&track)
  65         {
  66                 if(!endpoints[i])
  67                         endpoints[i] = new Endpoint3D(*this, i);
  68         }
  69         else if(endpoints[i])
  70         {
  71                 delete endpoints[i];
  72                 endpoints[i] = 0;
  73         }
  74 }
  75
  76 } // namespace R2C2