source/3d/path.cpp

   1 #include <msp/gl/matrix.h>
   2 #include <msp/gl/renderer.h>
   3 #include "libr2c2/tracktype.h"
   4 #include "layout.h"
   5 #include "path.h"
   6 #include "track.h"
   7 #include "tracktype.h"
   8
   9 using namespace std;
  10 using namespace Msp;
  11
  12 namespace R2C2 {
  13
  14 Path3D::Path3D(const Track3D &t):
  15         track(t),
  16         paths(0),
  17         automatic(true),
  18         z_offs(0)
  19 {
  20         track.get_layout().get_path_scene().add(*this);
  21 }
  22
  23 Path3D::~Path3D()
  24 {
  25         track.get_layout().get_path_scene().remove(*this);
  26 }
  27
  28 void Path3D::set_automatic()
  29 {
  30         automatic = true;
  31 }
  32
  33 void Path3D::set_path(unsigned p)
  34 {
  35         if(!(track.get_track().get_type().get_paths()&(1<<p)))
  36                 throw invalid_argument("Path3D::set_path");
  37         automatic = false;
  38         paths = 1<<p;
  39 }
  40
  41 void Path3D::set_mask(unsigned p)
  42 {
  43         if(p&~track.get_track().get_type().get_paths())
  44                 throw invalid_argument("Path3D::set_mask");
  45         automatic = false;
  46         paths = p;
  47 }
  48
  49 void Path3D::set_color(const GL::Color &c)
  50 {
  51         color = c;
  52 }
  53
  54 void Path3D::set_layer(float l)
  55 {
  56         z_offs = l*track.get_track().get_layout().get_catalogue().get_gauge()*0.01;
  57 }
  58
  59 long Path3D::get_instance_key() const
  60 {
  61         return reinterpret_cast<long>(&track.get_type());
  62 }
  63
  64 void Path3D::render(GL::Renderer &renderer, const GL::Tag &tag) const
  65 {
  66         if(tag=="unlit")
  67         {
  68                 unsigned mask = (automatic ? 1<<track.get_track().get_active_path() : paths);
  69                 mask &= track.get_track().get_type().get_paths();
  70                 if(!mask)
  71                         return;
  72
  73                 GL::MatrixStack::Push push_mtx(renderer.matrix_stack());
  74                 renderer.matrix_stack() *= track.Object3D::get_matrix();
  75                 renderer.matrix_stack() *= GL::Matrix::translation(0, 0, z_offs);
  76
  77                 glColor4f(color.r, color.g, color.b, color.a);
  78                 for(unsigned i=0; mask; ++i, mask>>=1)
  79                         if(mask&1)
  80                                 track.get_type().get_path_mesh(i).draw(renderer);
  81         }
  82 }
  83
  84 } // namespace R2C2