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 Msp;
  10
  11 namespace R2C2 {
  12
  13 Path3D::Path3D(const Track3D &t):
  14         track(t),
  15         paths(0),
  16         automatic(true),
  17         z_offs(0)
  18 {
  19         track.get_layout().get_path_scene().add(*this);
  20 }
  21
  22 Path3D::~Path3D()
  23 {
  24         track.get_layout().get_path_scene().remove(*this);
  25 }
  26
  27 void Path3D::set_automatic()
  28 {
  29         automatic = true;
  30 }
  31
  32 void Path3D::set_path(unsigned p)
  33 {
  34         if(!(track.get_track().get_type().get_paths()&(1<<p)))
  35                 throw InvalidParameterValue("Invalid path");
  36         automatic = false;
  37         paths = 1<<p;
  38 }
  39
  40 void Path3D::set_mask(unsigned p)
  41 {
  42         if(p&~track.get_track().get_type().get_paths())
  43                 throw InvalidParameterValue("Invalid path mask");
  44         automatic = false;
  45         paths = p;
  46 }
  47
  48 void Path3D::set_color(const GL::Color &c)
  49 {
  50         color = c;
  51 }
  52
  53 void Path3D::set_layer(float l)
  54 {
  55         z_offs = l*track.get_track().get_layout().get_catalogue().get_gauge()*0.01;
  56 }
  57
  58 long Path3D::get_instance_key() const
  59 {
  60         return reinterpret_cast<long>(&track.get_type());
  61 }
  62
  63 void Path3D::render(GL::Renderer &renderer, const GL::Tag &tag) const
  64 {
  65         if(tag=="unlit")
  66         {
  67                 unsigned mask = (automatic ? 1<<track.get_track().get_active_path() : paths);
  68                 mask &= track.get_track().get_type().get_paths();
  69                 if(!mask)
  70                         return;
  71
  72                 GL::MatrixStack::Push push_mtx(renderer.matrix_stack());
  73                 GL::Matrix matrix = track.get_matrix();
  74                 matrix.translate(0, 0, z_offs);
  75                 renderer.matrix_stack() *= matrix;
  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