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 <simgear/compiler.h>
  13 #include <simgear/debug/logstream.hxx>
  14 #include <simgear/structure/exception.hxx>
  15 #include <simgear/misc/sg_path.hxx>
  16 #include <simgear/scene/model/placement.hxx>
  17 #include <simgear/scene/util/SGNodeMasks.hxx>
  18
  19 #include <Main/globals.hxx>
  20 #include <Main/fg_props.hxx>
  21 #include <Main/renderer.hxx>
  22 #include <Main/viewmgr.hxx>
  23 #include <Main/viewer.hxx>
  24 #include <Scenery/scenery.hxx>
  25
  26 #include "model_panel.hxx"
  27
  28 #include "acmodel.hxx"
  29
  30 \f
  31 ////////////////////////////////////////////////////////////////////////
  32 // Implementation of FGAircraftModel
  33 ////////////////////////////////////////////////////////////////////////
  34
  35 FGAircraftModel::FGAircraftModel ()
  36   : _aircraft(0),
  37     _selector(new osg::Switch),
  38     _nearplane(0.10f),
  39     _farplane(1000.0f)
  40 {
  41 }
  42
  43 FGAircraftModel::~FGAircraftModel ()
  44 {
  45   delete _aircraft;
  46                                 // SSG will delete it
  47   globals->get_scenery()->get_aircraft_branch()->removeChild(_selector.get());
  48 }
  49
  50 void
  51 FGAircraftModel::init ()
  52 {
  53   SGPath liveryPath;
  54   _aircraft = new SGModelPlacement;
  55   string path = fgGetString("/sim/model/path", "Models/Geometry/glider.ac");
  56   string texture_path = fgGetString("/sim/model/texture-path");
  57   if( texture_path.size() ) {
  58       SGPath temp_path;
  59       if ( !ulIsAbsolutePathName( texture_path.c_str() ) ) {
  60           temp_path = globals->get_fg_root();
  61           temp_path.append( SGPath( path ).dir() );
  62           temp_path.append( texture_path );
  63           liveryPath = temp_path;
  64       } else
  65           liveryPath = texture_path;
  66   }
  67   try {
  68     osg::Node *model = fgLoad3DModelPanel( globals->get_fg_root(),
  69                                            path,
  70                                            globals->get_props(),
  71                                            globals->get_sim_time_sec(),
  72                                            liveryPath);
  73     _aircraft->init( model );
  74   } catch (const sg_exception &ex) {
  75     SG_LOG(SG_GENERAL, SG_ALERT, "Failed to load aircraft from " << path);
  76     SG_LOG(SG_GENERAL, SG_ALERT, "(Falling back to glider.ac.)");
  77     osg::Node *model = fgLoad3DModelPanel( globals->get_fg_root(),
  78                                            "Models/Geometry/glider.ac",
  79                                            globals->get_props(),
  80                                            globals->get_sim_time_sec(),
  81                                            liveryPath);
  82     _aircraft->init( model );
  83   }
  84   _selector->addChild(_aircraft->getSceneGraph(), true);
  85   // Do not do altitude computations with that model
  86   _selector->setNodeMask(~SG_NODEMASK_TERRAIN_BIT);
  87   globals->get_scenery()->get_aircraft_branch()->addChild(_selector.get());
  88 }
  89
  90 void
  91 FGAircraftModel::bind ()
  92 {
  93   // No-op
  94 }
  95
  96 void
  97 FGAircraftModel::unbind ()
  98 {
  99   // No-op
 100 }
 101
 102 void
 103 FGAircraftModel::update (double dt)
 104 {
 105   int view_number = globals->get_viewmgr()->get_current();
 106   int is_internal = fgGetBool("/sim/current-view/internal");
 107
 108   if (view_number == 0 && !is_internal) {
 109     _aircraft->setVisible(false);
 110   } else {
 111     _aircraft->setVisible(true);
 112   }
 113
 114   _aircraft->setPosition(fgGetDouble("/position/longitude-deg"),
 115                          fgGetDouble("/position/latitude-deg"),
 116                          fgGetDouble("/position/altitude-ft"));
 117   _aircraft->setOrientation(fgGetDouble("/orientation/roll-deg"),
 118                             fgGetDouble("/orientation/pitch-deg"),
 119                             fgGetDouble("/orientation/heading-deg"));
 120   _aircraft->update();
 121 }
 122
 123
 124 // end of model.cxx