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