source/engineer/trainview.cpp

   1 #include <msp/core/maputils.h>
   2 #include <msp/gl/tests.h>
   3 #include <msp/gltk/button.h>
   4 #include <msp/gltk/image.h>
   5 #include <msp/gltk/label.h>
   6 #include <msp/strings/format.h>
   7 #include "libr2c2/vehicle.h"
   8 #include "libr2c2/vehicletype.h"
   9 #include "engineer.h"
  10 #include "trainview.h"
  11
  12 using namespace Msp;
  13 using namespace R2C2;
  14
  15 TrainView::TrainView(Engineer &engineer, const Train &t):
  16         DynamicDialog(engineer.get_user_interface()),
  17         train(t),
  18         mode(SIDE),
  19         forward(true),
  20         view(engineer.get_layout_3d(), 400, 300)
  21 {
  22         Loader::WidgetMap widgets;
  23         DataFile::load(*this, "data/trainview.ui", widgets);
  24
  25         dynamic_cast<GLtk::Label *>(get_item(widgets, "lbl_title"))->set_text(format("View of %s", train.get_name()));
  26         dynamic_cast<GLtk::Toggle *>(get_item(widgets, "tgl_forward"))->signal_toggled.connect(sigc::mem_fun(this, &TrainView::set_forward));
  27         dynamic_cast<GLtk::Toggle *>(get_item(widgets, "tgl_roof"))->signal_toggled.connect(sigc::bind(sigc::mem_fun(this, &TrainView::ui_mode_toggled), ROOF));
  28         dynamic_cast<GLtk::Toggle *>(get_item(widgets, "tgl_side"))->signal_toggled.connect(sigc::bind(sigc::mem_fun(this, &TrainView::ui_mode_toggled), SIDE));
  29         dynamic_cast<GLtk::Toggle *>(get_item(widgets, "tgl_head"))->signal_toggled.connect(sigc::bind(sigc::mem_fun(this, &TrainView::ui_mode_toggled), HEAD));
  30
  31         tex.set_min_filter(GL::LINEAR);
  32         tex.storage(GL::RGB, 400, 300);
  33         tex.image(0, GL::RGB, GL::UNSIGNED_BYTE, 0);
  34         fbo.attach(GL::COLOR_ATTACHMENT0, tex, 0);
  35         depth.storage(GL::DEPTH_COMPONENT, 400, 300);
  36         fbo.attach(GL::DEPTH_ATTACHMENT, depth);
  37
  38         view.get_camera().set_depth_clip(0.01, 10);
  39
  40         dynamic_cast<GLtk::Image *>(get_item(widgets, "img_view"))->set_image(&tex);
  41 }
  42
  43 void TrainView::set_mode(Mode m)
  44 {
  45         mode = m;
  46 }
  47
  48 void TrainView::ui_mode_toggled(bool v, Mode m)
  49 {
  50         if(v)
  51                 set_mode(m);
  52 }
  53
  54 void TrainView::set_forward(bool f)
  55 {
  56         forward = f;
  57 }
  58
  59 void TrainView::update()
  60 {
  61         const Vehicle &veh = train.get_vehicle(0);
  62         const Vector &pos = veh.get_position();
  63         Angle angle = veh.get_rotation();
  64         if(!forward)
  65                 angle += Angle::half_turn();
  66         Vector fwd_vec = rotated_vector(Vector(1, 0, 0), angle);
  67         Vector side_vec = rotated_vector(Vector(0, -1, 0), angle);
  68         float l = veh.get_type().get_length();
  69
  70         GL::Camera &camera = view.get_camera();
  71         switch(mode)
  72         {
  73         case ROOF:
  74                 camera.set_position(pos-l*fwd_vec+Vector(0, 0, 0.07));
  75                 camera.set_look_direction(fwd_vec-Vector(0, 0, 0.2));
  76                 break;
  77         case SIDE:
  78                 camera.set_position(pos-0.08f*fwd_vec+0.05f*side_vec+Vector(0, 0, 0.03));
  79                 camera.set_look_direction(fwd_vec-side_vec*0.2f);
  80                 break;
  81         case HEAD:
  82                 camera.set_position(pos+fwd_vec*(l*0.55f)+Vector(0, 0, 0.03));
  83                 camera.set_look_direction(fwd_vec);
  84                 break;
  85         }
  86
  87         GL::Bind _bind_fbo(fbo);
  88         fbo.clear(GL::COLOR_BUFFER_BIT|GL::DEPTH_BUFFER_BIT);
  89         view.render();
  90 }