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(t),
  18         GL::ObjectInstance(l.get_catalogue().get_track(t.get_type()).get_object()),
  19         layout(l),
  20         track(t),
  21         type(layout.get_catalogue().get_track(track.get_type())),
  22         path(new Path3D(*this))
  23 {
  24         layout.add_track(*this);
  25         layout.get_scene().add(*this);
  26
  27         const vector<TrackType::Endpoint> &type_eps = track.get_type().get_endpoints();
  28         const vector<Track *> &links = track.get_links();
  29         for(unsigned i=0; i<type_eps.size(); ++i)
  30         {
  31                 if(!links[i] || links[i]>&track)
  32                         endpoints.push_back(new Endpoint3D(*this, i));
  33                 else
  34                         endpoints.push_back(0);
  35         }
  36
  37         track.signal_link_changed.connect(sigc::mem_fun(this, &Track3D::link_changed));
  38 }
  39
  40 Track3D::~Track3D()
  41 {
  42         delete path;
  43
  44         layout.remove_track(*this);
  45         layout.get_scene().remove(*this);
  46
  47         for(vector<Endpoint3D *>::iterator i=endpoints.begin(); i!=endpoints.end(); ++i)
  48                 delete *i;
  49 }
  50
  51 Vector Track3D::get_node() const
  52 {
  53         Geometry::BoundingBox<float, 3> bbox = track.get_type().get_shape()->get_axis_aligned_bounding_box();
  54         const Vector &minp = bbox.get_minimum_point();
  55         const Vector &maxp = bbox.get_maximum_point();
  56
  57         return matrix*((minp+maxp)/2.0f+Vector(0, 0, 0.02));
  58 }
  59
  60 void Track3D::setup_render(Msp::GL::Renderer &renderer, const GL::Tag &) const
  61 {
  62         renderer.matrix_stack() *= matrix;
  63 }
  64
  65 void Track3D::link_changed(unsigned i, Track *trk)
  66 {
  67         if(!trk || trk>&track)
  68         {
  69                 if(!endpoints[i])
  70                         endpoints[i] = new Endpoint3D(*this, i);
  71         }
  72         else if(endpoints[i])
  73         {
  74                 delete endpoints[i];
  75                 endpoints[i] = 0;
  76         }
  77 }
  78
  79 } // namespace R2C2