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   delete _aircraft;
  50   delete _scene;
  51                                 // SSG will delete it
  52   globals->get_scenery()->get_aircraft_branch()->removeKid(_selector);
  53 }
  54
  55 void
  56 FGAircraftModel::init ()
  57 {
  58   _aircraft = new SGModelPlacement;
  59   string path = fgGetString("/sim/model/path", "Models/Geometry/glider.ac");
  60   try {
  61     ssgBranch *model = fgLoad3DModelPanel( globals->get_fg_root(),
  62                                            path,
  63                                            globals->get_props(),
  64                                            globals->get_sim_time_sec() );
  65     _aircraft->init( model );
  66   } catch (const sg_exception &ex) {
  67     SG_LOG(SG_GENERAL, SG_ALERT, "Failed to load aircraft from " << path);
  68     SG_LOG(SG_GENERAL, SG_ALERT, "(Falling back to glider.ac.)");
  69     ssgBranch *model = fgLoad3DModelPanel( globals->get_fg_root(),
  70                                            "Models/Geometry/glider.ac",
  71                                            globals->get_props(),
  72                                            globals->get_sim_time_sec() );
  73     _aircraft->init( model );
  74   }
  75   _scene->addKid(_aircraft->getSceneGraph());
  76   _selector->addKid(_aircraft->getSceneGraph());
  77   globals->get_scenery()->get_aircraft_branch()->addKid(_selector);
  78 }
  79
  80 void
  81 FGAircraftModel::bind ()
  82 {
  83   // No-op
  84 }
  85
  86 void
  87 FGAircraftModel::unbind ()
  88 {
  89   // No-op
  90 }
  91
  92 void
  93 FGAircraftModel::update (double dt)
  94 {
  95   int view_number = globals->get_viewmgr()->get_current();
  96   int is_internal = fgGetBool("/sim/current-view/internal");
  97
  98   if (view_number == 0 && !is_internal) {
  99     _aircraft->setVisible(false);
 100   } else {
 101     _aircraft->setVisible(true);
 102   }
 103
 104   _aircraft->setPosition(fgGetDouble("/position/longitude-deg"),
 105                          fgGetDouble("/position/latitude-deg"),
 106                          fgGetDouble("/position/altitude-ft"));
 107   _aircraft->setOrientation(fgGetDouble("/orientation/roll-deg"),
 108                             fgGetDouble("/orientation/pitch-deg"),
 109                             fgGetDouble("/orientation/heading-deg"));
 110   _aircraft->update( globals->get_scenery()->get_center() );
 111
 112 }
 113
 114 void
 115 FGAircraftModel::draw ()
 116 {
 117                                 // OK, now adjust the clip planes and draw
 118                                 // FIXME: view number shouldn't be
 119                                 // hard-coded.
 120   bool is_internal = globals->get_current_view()->getInternal();
 121   if (_aircraft->getVisible() && is_internal) {
 122     glClearDepth(1);
 123     glClear(GL_DEPTH_BUFFER_BIT);
 124     FGRenderer::setNearFar(_nearplane, _farplane);
 125     ssgCullAndDraw(_scene);
 126     _selector->select(0);
 127   } else {
 128     _selector->select(1);
 129   }
 130
 131 }
 132
 133 // end of model.cxx