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         GL::ObjectInstance(l.get_catalogue().get_track(t.get_type()).get_object()),
  18         layout(l),
  19         track(t),
  20         type(layout.get_catalogue().get_track(track.get_type())),
  21         path(new Path3D(*this))
  22 {
  23         layout.add_track(*this);
  24         layout.get_scene().add(*this);
  25
  26         const vector<TrackType::Endpoint> &type_eps = track.get_type().get_endpoints();
  27         const vector<Track *> &links = track.get_links();
  28         for(unsigned i=0; i<type_eps.size(); ++i)
  29         {
  30                 if(!links[i] || links[i]>&track)
  31                         endpoints.push_back(new Endpoint3D(*this, i));
  32                 else
  33                         endpoints.push_back(0);
  34         }
  35
  36         track.signal_link_changed.connect(sigc::mem_fun(this, &Track3D::link_changed));
  37 }
  38
  39 Track3D::~Track3D()
  40 {
  41         delete path;
  42
  43         layout.remove_track(*this);
  44         layout.get_scene().remove(*this);
  45
  46         for(vector<Endpoint3D *>::iterator i=endpoints.begin(); i!=endpoints.end(); ++i)
  47                 delete *i;
  48 }
  49
  50 Vector Track3D::get_node() const
  51 {
  52         Geometry::BoundingBox<float, 3> bbox = track.get_type().get_shape()->get_axis_aligned_bounding_box();
  53         const Vector &minp = bbox.get_minimum_point();
  54         const Vector &maxp = bbox.get_maximum_point();
  55
  56         return track.get_position()+rotated_vector((minp+maxp)/2.0f, track.get_rotation())+Vector(0, 0, 0.02);
  57 }
  58
  59 GL::Matrix Track3D::create_matrix() const
  60 {
  61         GL::Matrix matrix;
  62         matrix.translate(track.get_position());
  63         matrix.rotate(track.get_rotation(), 0, 0, 1);
  64         matrix.rotate(track.get_slope()/track.get_type().get_total_length(), 0, -1, 0);
  65
  66         return matrix;
  67 }
  68
  69 void Track3D::setup_render(Msp::GL::Renderer &renderer, const GL::Tag &) const
  70 {
  71         renderer.matrix_stack() *= create_matrix();
  72 }
  73
  74 void Track3D::link_changed(unsigned i, Track *trk)
  75 {
  76         if(!trk || trk>&track)
  77         {
  78                 if(!endpoints[i])
  79                         endpoints[i] = new Endpoint3D(*this, i);
  80         }
  81         else if(endpoints[i])
  82         {
  83                 delete endpoints[i];
  84                 endpoints[i] = 0;
  85         }
  86 }
  87
  88 } // namespace R2C2