src/Model/acmodel.cxx

   1 // model.cxx - manage a 3D aircraft model.
   2 // Written by David Megginson, started 2002.
   3 //
   4 // This file is in the Public Domain, and comes with no warranty.
   5
   6 #ifdef HAVE_CONFIG_H
   7 #  include <config.h>
   8 #endif
   9
  10 #include <string.h>             // for strcmp()
  11
  12 #include <plib/sg.h>
  13 #include <plib/ssg.h>
  14
  15 #include <simgear/compiler.h>
  16 #include <simgear/debug/logstream.hxx>
  17 #include <simgear/structure/exception.hxx>
  18 #include <simgear/misc/sg_path.hxx>
  19 #include <simgear/scene/model/placement.hxx>
  20
  21 #include <Main/globals.hxx>
  22 #include <Main/fg_props.hxx>
  23 #include <Main/renderer.hxx>
  24 #include <Main/viewmgr.hxx>
  25 #include <Main/viewer.hxx>
  26 #include <Scenery/scenery.hxx>
  27
  28 #include "model_panel.hxx"
  29
  30 #include "acmodel.hxx"
  31
  32
  33 \f
  34 ////////////////////////////////////////////////////////////////////////
  35 // Implementation of FGAircraftModel
  36 ////////////////////////////////////////////////////////////////////////
  37
  38 FGAircraftModel::FGAircraftModel ()
  39   : _aircraft(0),
  40     _selector(new ssgSelector),
  41     _scene(new ssgRoot),
  42     _nearplane(0.01f),
  43     _farplane(1000.0f)
  44 {
  45 }
  46
  47 FGAircraftModel::~FGAircraftModel ()
  48 {
  49   // Unregister that one at the scenery manager
  50   if (_aircraft)
  51     globals->get_scenery()->unregister_placement_transform(_aircraft->getTransform());
  52
  53   delete _aircraft;
  54   delete _scene;
  55                                 // SSG will delete it
  56   globals->get_scenery()->get_aircraft_branch()->removeKid(_selector);
  57 }
  58
  59 void
  60 FGAircraftModel::init ()
  61 {
  62   _aircraft = new SGModelPlacement;
  63   string path = fgGetString("/sim/model/path", "Models/Geometry/glider.ac");
  64   try {
  65     ssgBranch *model = fgLoad3DModelPanel( globals->get_fg_root(),
  66                                            path,
  67                                            globals->get_props(),
  68                                            globals->get_sim_time_sec() );
  69     _aircraft->init( model );
  70   } catch (const sg_exception &ex) {
  71     SG_LOG(SG_GENERAL, SG_ALERT, "Failed to load aircraft from " << path);
  72     SG_LOG(SG_GENERAL, SG_ALERT, "(Falling back to glider.ac.)");
  73     ssgBranch *model = fgLoad3DModelPanel( globals->get_fg_root(),
  74                                            "Models/Geometry/glider.ac",
  75                                            globals->get_props(),
  76                                            globals->get_sim_time_sec() );
  77     _aircraft->init( model );
  78   }
  79   _scene->addKid(_aircraft->getSceneGraph());
  80   _selector->addKid(_aircraft->getSceneGraph());
  81   globals->get_scenery()->get_aircraft_branch()->addKid(_selector);
  82
  83   // Register that one at the scenery manager
  84   globals->get_scenery()->register_placement_transform(_aircraft->getTransform());
  85 }
  86
  87 void
  88 FGAircraftModel::bind ()
  89 {
  90   // No-op
  91 }
  92
  93 void
  94 FGAircraftModel::unbind ()
  95 {
  96   // No-op
  97 }
  98
  99 void
 100 FGAircraftModel::update (double dt)
 101 {
 102   int view_number = globals->get_viewmgr()->get_current();
 103   int is_internal = fgGetBool("/sim/current-view/internal");
 104
 105   if (view_number == 0 && !is_internal) {
 106     _aircraft->setVisible(false);
 107   } else {
 108     _aircraft->setVisible(true);
 109   }
 110
 111   _aircraft->setPosition(fgGetDouble("/position/longitude-deg"),
 112                          fgGetDouble("/position/latitude-deg"),
 113                          fgGetDouble("/position/altitude-ft"));
 114   _aircraft->setOrientation(fgGetDouble("/orientation/roll-deg"),
 115                             fgGetDouble("/orientation/pitch-deg"),
 116                             fgGetDouble("/orientation/heading-deg"));
 117   _aircraft->update( globals->get_scenery()->get_center() );
 118
 119 }
 120
 121 void
 122 FGAircraftModel::draw ()
 123 {
 124                                 // OK, now adjust the clip planes and draw
 125                                 // FIXME: view number shouldn't be
 126                                 // hard-coded.
 127   bool is_internal = globals->get_current_view()->getInternal();
 128   if (_aircraft->getVisible() && is_internal) {
 129     glClearDepth(1);
 130     glClear(GL_DEPTH_BUFFER_BIT);
 131     FGRenderer::setNearFar(_nearplane, _farplane);
 132     ssgCullAndDraw(_scene);
 133     _selector->select(0);
 134   } else {
 135     _selector->select(1);
 136   }
 137
 138 }
 139
 140 // end of model.cxx