1 // model.cxx - manage a 3D aircraft model.
2 // Written by David Megginson, started 2002.
4 // This file is in the Public Domain, and comes with no warranty.
10 #include <string.h> // for strcmp()
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>
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 #include <Sound/fg_fx.hxx>
27 #include "model_panel.hxx"
29 #include "acmodel.hxx"
33 ////////////////////////////////////////////////////////////////////////
34 // Implementation of FGAircraftModel
35 ////////////////////////////////////////////////////////////////////////
37 FGAircraftModel::FGAircraftModel ()
39 _velocity(SGVec3d::zeros()),
51 SGSoundMgr *smgr = globals->get_soundmgr();
52 _fx = new FGFX(smgr, "fx");
56 FGAircraftModel::~FGAircraftModel ()
58 osg::Node* node = _aircraft->getSceneGraph();
59 globals->get_scenery()->get_aircraft_branch()->removeChild(node);
65 FGAircraftModel::init ()
67 _aircraft = new SGModelPlacement;
68 string path = fgGetString("/sim/model/path", "Models/Geometry/glider.ac");
70 osg::Node *model = fgLoad3DModelPanel( path, globals->get_props());
71 _aircraft->init( model );
72 } catch (const sg_exception &ex) {
73 SG_LOG(SG_GENERAL, SG_ALERT, "Failed to load aircraft from " << path << ':');
74 SG_LOG(SG_GENERAL, SG_ALERT, " " << ex.getFormattedMessage());
75 SG_LOG(SG_GENERAL, SG_ALERT, "(Falling back to glider.ac.)");
76 osg::Node *model = fgLoad3DModelPanel( "Models/Geometry/glider.ac",
77 globals->get_props());
78 _aircraft->init( model );
80 osg::Node* node = _aircraft->getSceneGraph();
81 // Do not do altitude computations with that model
82 node->setNodeMask(~SG_NODEMASK_TERRAIN_BIT);
83 globals->get_scenery()->get_aircraft_branch()->addChild(node);
87 FGAircraftModel::bind ()
89 _lon = fgGetNode("position/longitude-deg", true);
90 _lat = fgGetNode("position/latitude-deg", true);
91 _alt = fgGetNode("position/altitude-ft", true);
92 _pitch = fgGetNode("orientation/pitch-deg", true);
93 _roll = fgGetNode("orientation/roll-deg", true);
94 _heading = fgGetNode("orientation/heading-deg", true);
95 _speed_n = fgGetNode("velocities/speed-north-fps", true);
96 _speed_e = fgGetNode("velocities/speed-east-fps", true);
97 _speed_d = fgGetNode("velocities/speed-down-fps", true);
101 FGAircraftModel::unbind ()
107 FGAircraftModel::update (double dt)
109 int view_number = globals->get_viewmgr()->get_current();
110 int is_internal = fgGetBool("/sim/current-view/internal");
112 if (view_number == 0 && !is_internal) {
113 _aircraft->setVisible(false);
115 _aircraft->setVisible(true);
118 _aircraft->setPosition(_lon->getDoubleValue(),
119 _lat->getDoubleValue(),
120 _alt->getDoubleValue());
121 _aircraft->setOrientation(_roll->getDoubleValue(),
122 _pitch->getDoubleValue(),
123 _heading->getDoubleValue());
126 // update model's audio sample values
127 _fx->set_position( _aircraft->getPosition() );
129 SGQuatd orient = SGQuatd::fromYawPitchRollDeg(_heading->getDoubleValue(),
130 _pitch->getDoubleValue(),
131 _roll->getDoubleValue());
132 _fx->set_orientation( orient );
134 SGQuatd q(-0.5, -0.5, 0.5, 0.5);
135 _velocity = q.backTransform( SGVec3d( _speed_n->getDoubleValue(),
136 _speed_e->getDoubleValue(),
137 _speed_d->getDoubleValue()) );
138 _fx->set_velocity( _velocity );