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/misc/exception.hxx>
  18 #include <simgear/misc/sg_path.hxx>
  19
  20 #include <Main/globals.hxx>
  21 #include <Main/fg_props.hxx>
  22 #include <Main/viewmgr.hxx>
  23
  24 #include "acmodel.hxx"
  25 #include "model.hxx"
  26
  27
  28 \f
  29 ////////////////////////////////////////////////////////////////////////
  30 // Implementation of FGAircraftModel
  31 ////////////////////////////////////////////////////////////////////////
  32
  33 FGAircraftModel::FGAircraftModel ()
  34   : _aircraft(0),
  35     _selector(new ssgSelector),
  36     _scene(new ssgRoot),
  37     _nearplane(0.01f),
  38     _farplane(100.0f)
  39 {
  40 }
  41
  42 FGAircraftModel::~FGAircraftModel ()
  43 {
  44   delete _aircraft;
  45   delete _scene;
  46                                 // SSG will delete it
  47   globals->get_aircraft_branch()->removeKid(_selector);
  48 }
  49
  50 void
  51 FGAircraftModel::init ()
  52 {
  53   _aircraft = new FG3DModel;
  54   _aircraft->init(fgGetString("/sim/model/path", "Models/Geometry/glider.ac"));
  55   _scene->addKid(_aircraft->getSceneGraph());
  56   _selector->addKid(_aircraft->getSceneGraph());
  57   globals->get_aircraft_branch()->addKid(_selector);
  58 }
  59
  60 void
  61 FGAircraftModel::bind ()
  62 {
  63   // No-op
  64 }
  65
  66 void
  67 FGAircraftModel::unbind ()
  68 {
  69   // No-op
  70 }
  71
  72 void
  73 FGAircraftModel::update (int dt)
  74 {
  75   int view_number = globals->get_viewmgr()->get_current();
  76
  77   if (view_number == 0 && !fgGetBool("/sim/view/internal")) {
  78     _aircraft->setVisible(false);
  79   } else {
  80     _aircraft->setVisible(true);
  81   }
  82
  83   _aircraft->setPosition(fgGetDouble("/position/longitude-deg"),
  84                          fgGetDouble("/position/latitude-deg"),
  85                          fgGetDouble("/position/altitude-ft"));
  86   _aircraft->setOrientation(fgGetDouble("/orientation/roll-deg"),
  87                             fgGetDouble("/orientation/pitch-deg"),
  88                             fgGetDouble("/orientation/heading-deg"));
  89   _aircraft->update(dt);
  90
  91 }
  92
  93 void
  94 FGAircraftModel::draw ()
  95 {
  96                                 // OK, now adjust the clip planes and draw
  97                                 // FIXME: view number shouldn't be
  98                                 // hard-coded.
  99   int view_number = globals->get_viewmgr()->get_current();
 100   if (_aircraft->getVisible() && view_number == 0) {
 101     glClearDepth(1);
 102     glClear(GL_DEPTH_BUFFER_BIT);
 103     ssgSetNearFar(_nearplane, _farplane);
 104     ssgCullAndDraw(_scene);
 105     _selector->select(0);
 106   } else {
 107     _selector->select(1);
 108   }
 109
 110 }
 111
 112 // end of model.cxx