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   // Unregister that one at the scenery manager
  46   if (_aircraft)
  47     globals->get_scenery()->unregister_placement_transform(_aircraft->getTransform());
  48
  49   delete _aircraft;
  50                                 // SSG will delete it
  51   globals->get_scenery()->get_aircraft_branch()->removeChild(_selector.get());
  52 }
  53
  54 void
  55 FGAircraftModel::init ()
  56 {
  57   SGPath liveryPath;
  58   _aircraft = new SGModelPlacement;
  59   string path = fgGetString("/sim/model/path", "Models/Geometry/glider.ac");
  60   string texture_path = fgGetString("/sim/model/texture-path");
  61   if( texture_path.size() ) {
  62       SGPath temp_path;
  63       if ( !ulIsAbsolutePathName( texture_path.c_str() ) ) {
  64           temp_path = globals->get_fg_root();
  65           temp_path.append( SGPath( path ).dir() );
  66           temp_path.append( texture_path );
  67           liveryPath = temp_path;
  68       } else
  69           liveryPath = texture_path;
  70   }
  71   try {
  72     osg::Node *model = fgLoad3DModelPanel( globals->get_fg_root(),
  73                                            path,
  74                                            globals->get_props(),
  75                                            globals->get_sim_time_sec(),
  76                                            liveryPath);
  77     _aircraft->init( model );
  78   } catch (const sg_exception &ex) {
  79     SG_LOG(SG_GENERAL, SG_ALERT, "Failed to load aircraft from " << path);
  80     SG_LOG(SG_GENERAL, SG_ALERT, "(Falling back to glider.ac.)");
  81     osg::Node *model = fgLoad3DModelPanel( globals->get_fg_root(),
  82                                            "Models/Geometry/glider.ac",
  83                                            globals->get_props(),
  84                                            globals->get_sim_time_sec(),
  85                                            liveryPath);
  86     _aircraft->init( model );
  87   }
  88   _selector->addChild(_aircraft->getSceneGraph());
  89   // Do not do altitude computations with that model
  90   _selector->setNodeMask(~SG_NODEMASK_TERRAIN_BIT);
  91   globals->get_scenery()->get_aircraft_branch()->addChild(_selector.get());
  92
  93   // Register that one at the scenery manager
  94   globals->get_scenery()->register_placement_transform(_aircraft->getTransform());
  95 }
  96
  97 void
  98 FGAircraftModel::bind ()
  99 {
 100   // No-op
 101 }
 102
 103 void
 104 FGAircraftModel::unbind ()
 105 {
 106   // No-op
 107 }
 108
 109 void
 110 FGAircraftModel::update (double dt)
 111 {
 112   int view_number = globals->get_viewmgr()->get_current();
 113   int is_internal = fgGetBool("/sim/current-view/internal");
 114
 115   if (view_number == 0 && !is_internal) {
 116     _aircraft->setVisible(false);
 117   } else {
 118     _aircraft->setVisible(true);
 119   }
 120
 121   _aircraft->setPosition(fgGetDouble("/position/longitude-deg"),
 122                          fgGetDouble("/position/latitude-deg"),
 123                          fgGetDouble("/position/altitude-ft"));
 124   _aircraft->setOrientation(fgGetDouble("/orientation/roll-deg"),
 125                             fgGetDouble("/orientation/pitch-deg"),
 126                             fgGetDouble("/orientation/heading-deg"));
 127   _aircraft->update();
 128 }
 129
 130
 131 // end of model.cxx