0ebe8ec8f0
Animations are now contained within the scene graph itself and are updated whenever the graph is traversed -- that saves time by not updating animations not currently in sight, and it allows animations to be used for static objects and random objects as well. Added new FGModelLoader and FGTextureLoader classes. These are intern tables for models, to guarantee (mostly) that no model is loaded more than once. FGTextureLoader is not yet used anywhere, but FGModelLoader is now in place everywhere that ssgLoad* used to be used (thus adding the ability to use animations). In the future, FGModelLoader will add some interesting functionality, including the ability to reload 3D models on the fly.
120 lines
2.8 KiB
C++
120 lines
2.8 KiB
C++
// model.cxx - manage a 3D aircraft model.
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// Written by David Megginson, started 2002.
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//
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// This file is in the Public Domain, and comes with no warranty.
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#include <string.h> // for strcmp()
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#include <plib/sg.h>
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#include <plib/ssg.h>
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#include <simgear/compiler.h>
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#include <simgear/debug/logstream.hxx>
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#include <simgear/misc/exception.hxx>
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#include <simgear/misc/sg_path.hxx>
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#include <Main/globals.hxx>
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#include <Main/fg_props.hxx>
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#include <Main/viewmgr.hxx>
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#include <Scenery/scenery.hxx>
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#include "acmodel.hxx"
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#include "model.hxx"
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////////////////////////////////////////////////////////////////////////
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// Implementation of FGAircraftModel
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////////////////////////////////////////////////////////////////////////
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FGAircraftModel::FGAircraftModel ()
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: _aircraft(0),
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_selector(new ssgSelector),
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_scene(new ssgRoot),
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_nearplane(0.01f),
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_farplane(100.0f)
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{
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}
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FGAircraftModel::~FGAircraftModel ()
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{
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delete _aircraft;
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delete _scene;
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// SSG will delete it
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globals->get_scenery()->get_aircraft_branch()->removeKid(_selector);
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}
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void
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FGAircraftModel::init ()
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{
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_aircraft = new FGModelPlacement;
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string path = fgGetString("/sim/model/path", "Models/Geometry/glider.ac");
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try {
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_aircraft->init(path);
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} catch (const sg_exception &ex) {
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SG_LOG(SG_GENERAL, SG_ALERT, "Failed to load aircraft from " << path);
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SG_LOG(SG_GENERAL, SG_ALERT, "(Falling back to glider.ac.)");
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_aircraft->init("Models/Geometry/glider.ac");
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}
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_scene->addKid(_aircraft->getSceneGraph());
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_selector->addKid(_aircraft->getSceneGraph());
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globals->get_scenery()->get_aircraft_branch()->addKid(_selector);
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}
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void
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FGAircraftModel::bind ()
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{
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// No-op
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}
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void
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FGAircraftModel::unbind ()
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{
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// No-op
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}
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void
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FGAircraftModel::update (double dt)
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{
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int view_number = globals->get_viewmgr()->get_current();
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if (view_number == 0 && !fgGetBool("/sim/view/internal")) {
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_aircraft->setVisible(false);
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} else {
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_aircraft->setVisible(true);
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}
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_aircraft->setPosition(fgGetDouble("/position/longitude-deg"),
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fgGetDouble("/position/latitude-deg"),
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fgGetDouble("/position/altitude-ft"));
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_aircraft->setOrientation(fgGetDouble("/orientation/roll-deg"),
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fgGetDouble("/orientation/pitch-deg"),
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fgGetDouble("/orientation/heading-deg"));
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_aircraft->update();
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}
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void
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FGAircraftModel::draw ()
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{
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// OK, now adjust the clip planes and draw
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// FIXME: view number shouldn't be
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// hard-coded.
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int view_number = globals->get_viewmgr()->get_current();
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if (_aircraft->getVisible() && view_number == 0) {
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glClearDepth(1);
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glClear(GL_DEPTH_BUFFER_BIT);
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ssgSetNearFar(_nearplane, _farplane);
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ssgCullAndDraw(_scene);
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_selector->select(0);
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} else {
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_selector->select(1);
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}
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}
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// end of model.cxx
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