trainview.cpp

   1 /* $Id$
   2
   3 This file is part of R²C²
   4 Copyright © 2010  Mikkosoft Productions, Mikko Rasa
   5 Distributed under the GPL
   6 */
   7
   8 #include <msp/gl/tests.h>
   9 #include <msp/gltk/button.h>
  10 #include <msp/gltk/image.h>
  11 #include "libr2c2/vehicle.h"
  12 #include "libr2c2/vehicletype.h"
  13 #include "engineer.h"
  14 #include "trainview.h"
  15
  16 using namespace Msp;
  17 using namespace R2C2;
  18
  19 TrainView::TrainView(Engineer &e, const Train &t):
  20         engineer(e),
  21         train(t),
  22         mode(SIDE),
  23         forward(true),
  24         pipeline(280, 280, false),
  25         stale(false)
  26 {
  27         set_size(300, 330);
  28
  29         tex.set_min_filter(GL::LINEAR);
  30         tex.storage(GL::RGB, 280, 280);
  31         tex.image(0, GL::RGB, GL::UNSIGNED_BYTE, 0);
  32         fbo.attach(GL::COLOR_ATTACHMENT0, tex, 0);
  33         depth.storage(GL::DEPTH_COMPONENT, 280, 280);
  34         fbo.attach(GL::DEPTH_ATTACHMENT, depth);
  35
  36         camera.set_up_direction(GL::Vector3(0, 0, 1));
  37         camera.set_depth_clip(0.01, 10);
  38         camera.set_aspect(1);
  39         pipeline.set_camera(&camera);
  40
  41         pipeline.add_renderable(engineer.get_layout_3d().get_scene());
  42
  43         GL::PipelinePass *pass = &pipeline.add_pass(0);
  44         pass->depth_test = &GL::DepthTest::lequal();
  45         pass->lighting = &engineer.get_lighting();
  46
  47         GLtk::Image *image;
  48         add(*(image = new GLtk::Image(&tex)));
  49         image->set_geometry(GLtk::Geometry(10, 40, geom.w-20, geom.h-50));
  50
  51         GLtk::Button *btn;
  52
  53         add(*(btn = new GLtk::Button("Roof")));
  54         btn->set_geometry(GLtk::Geometry(10, 10, 36, 25));
  55         btn->signal_clicked.connect(sigc::bind(sigc::mem_fun(this, &TrainView::set_mode), ROOF));
  56
  57         add(*(btn = new GLtk::Button("Side")));
  58         btn->set_geometry(GLtk::Geometry(46, 10, 36, 25));
  59         btn->signal_clicked.connect(sigc::bind(sigc::mem_fun(this, &TrainView::set_mode), SIDE));
  60
  61         add(*(btn = new GLtk::Button("Head")));
  62         btn->set_geometry(GLtk::Geometry(82, 10, 36, 25));
  63         btn->signal_clicked.connect(sigc::bind(sigc::mem_fun(this, &TrainView::set_mode), HEAD));
  64
  65         add(*(tgl_forward = new GLtk::Toggle("Fwd")));
  66         tgl_forward->set_geometry(GLtk::Geometry(118, 8, 36, 27));
  67         tgl_forward->set_value(true);
  68         tgl_forward->signal_toggled.connect(sigc::mem_fun(this, &TrainView::set_forward));
  69
  70         add(*(btn = new GLtk::Button("Close")));
  71         btn->set_geometry(GLtk::Geometry(geom.w-46, 10, 36, 25));
  72         btn->signal_clicked.connect(sigc::mem_fun(this, &TrainView::close_clicked));
  73
  74         engineer.add_train_view(*this);
  75 }
  76
  77 TrainView::~TrainView()
  78 {
  79         engineer.remove_train_view(*this);
  80 }
  81
  82 void TrainView::set_mode(Mode m)
  83 {
  84         mode = m;
  85 }
  86
  87 void TrainView::set_forward(bool f)
  88 {
  89         forward = f;
  90 }
  91
  92 void TrainView::prepare()
  93 {
  94         const Vehicle &veh = train.get_vehicle(0);
  95         const Vector &pos = veh.get_position();
  96         float angle = veh.get_direction();
  97         if(!forward)
  98                 angle += M_PI;
  99         float c = cos(angle);
 100         float s = sin(angle);
 101         float l = veh.get_type().get_length();
 102
 103         switch(mode)
 104         {
 105         case ROOF:
 106                 camera.set_position(GL::Vector3(pos.x-l*c, pos.y-l*s, pos.z+0.07));
 107                 camera.set_look_direction(GL::Vector3(c, s, -0.2));
 108                 break;
 109         case SIDE:
 110                 camera.set_position(GL::Vector3(pos.x-l*0.8*c+0.05*s, pos.y-l*0.8*s-0.05*c, pos.z+0.03));
 111                 camera.set_look_direction(GL::Vector3(c-0.2*s, s+0.2*c, 0));
 112                 break;
 113         case HEAD:
 114                 camera.set_position(GL::Vector3(pos.x+l*0.55*c, pos.y+l*0.55*s, pos.z+0.03));
 115                 camera.set_look_direction(GL::Vector3(c, s, 0));
 116                 break;
 117         }
 118
 119         GL::Bind _bind_fbo(fbo);
 120         fbo.clear(GL::COLOR_BUFFER_BIT|GL::DEPTH_BUFFER_BIT);
 121         pipeline.render_all();
 122 }
 123
 124 void TrainView::button_release(int x, int y, unsigned btn)
 125 {
 126         GLtk::Panel::button_release(x, y, btn);
 127         if(stale)
 128                 delete this;
 129 }
 130
 131 void TrainView::close_clicked()
 132 {
 133         stale = true;
 134 }