]> git.mxchange.org Git - flightgear.git/blobdiff - src/Model/modelmgr.cxx
- move exception handling from init() and childAdded() to add_model()
[flightgear.git] / src / Model / modelmgr.cxx
index 4175f65bf9de7bd0275bbe635ea6882c51fe9421..0ec617b0b4b9486976681f82292b7346613c50d8 100644 (file)
 
 #include <vector>
 
-#include <plib/ssg.h>
-
 #include <simgear/scene/model/placement.hxx>
-#include <simgear/scene/model/model.hxx>
+#include <simgear/scene/model/modellib.hxx>
+#include <simgear/structure/exception.hxx>
 
 #include <Main/fg_props.hxx>
 #include <Scenery/scenery.hxx>
 
 SG_USING_STD(vector);
 
+// OSGFIXME
+// extern SGShadowVolume *shadows;
+
 
 FGModelMgr::FGModelMgr ()
-  : _selector(new ssgSelector)
+  : _models(fgGetNode("/models", true)),
+    _listener(new Listener(this))
 {
+  _models->addChangeListener(_listener);
 }
 
 FGModelMgr::~FGModelMgr ()
 {
+  _models->removeChangeListener(_listener);
+  delete _listener;
+
   for (unsigned int i = 0; i < _instances.size(); i++) {
-    globals->get_scenery()->get_models_branch()
-      ->removeKid(_instances[i]->model->getSceneGraph());
+    globals->get_scenery()->get_scene_graph()
+      ->removeChild(_instances[i]->model->getSceneGraph());
     delete _instances[i];
   }
 }
@@ -42,68 +49,85 @@ FGModelMgr::~FGModelMgr ()
 void
 FGModelMgr::init ()
 {
-  vector<SGPropertyNode_ptr> model_nodes =
-    fgGetNode("/models", true)->getChildren("model");
-  for (unsigned int i = 0; i < model_nodes.size(); i++) {
-    SGPropertyNode * node = model_nodes[i];
-    SG_LOG(SG_GENERAL, SG_INFO,
-          "Adding model " << node->getStringValue("name", "[unnamed]"));
-    Instance * instance = new Instance;
-    SGModelPlacement *model = new SGModelPlacement;
-    instance->model = model;
-    ssgBranch *object
-        = sgLoad3DModel( globals->get_fg_root(),
-                         node->getStringValue("path",
-                                              "Models/Geometry/glider.ac"),
-                         globals->get_props(),
-                         globals->get_sim_time_sec() );
-    model->init( object );
+  vector<SGPropertyNode_ptr> model_nodes = _models->getChildren("model");
+
+  for (unsigned int i = 0; i < model_nodes.size(); i++)
+      add_model(model_nodes[i]);
+}
+
+void
+FGModelMgr::add_model (SGPropertyNode * node)
+{
+  SG_LOG(SG_GENERAL, SG_INFO,
+         "Adding model " << node->getStringValue("name", "[unnamed]"));
+  Instance * instance = new Instance;
+  SGModelPlacement *model = new SGModelPlacement;
+  instance->model = model;
+  instance->node = node;
+  SGModelLib *model_lib = globals->get_model_lib();
+
+  const char *path = node->getStringValue("path", "Models/Geometry/glider.ac");
+  osg::Node *object;
+
+  try {
+    object = model_lib->load_model(
+        globals->get_fg_root(),
+        path,
+        globals->get_props(),
+        globals->get_sim_time_sec(), /*cache_object=*/false);
+  } catch (const sg_throwable& t) {
+    SG_LOG(SG_GENERAL, SG_ALERT, "Error loading " << path << ":\n  "
+        << t.getFormattedMessage() << t.getOrigin());
+    return;
+  }
+
+  model->init( object );
 
                                // Set position and orientation either
                                // indirectly through property refs
                                // or directly with static values.
-    SGPropertyNode * child = node->getChild("longitude-deg-prop");
-    if (child != 0)
-      instance->lon_deg_node = fgGetNode(child->getStringValue(), true);
-    else
-      model->setLongitudeDeg(node->getDoubleValue("longitude-deg"));
-
-    child = node->getChild("latitude-deg-prop");
-    if (child != 0)
-      instance->lat_deg_node = fgGetNode(child->getStringValue(), true);
-    else
-      model->setLatitudeDeg(node->getDoubleValue("latitude-deg"));
-
-    child = node->getChild("elevation-ft-prop");
-    if (child != 0)
-      instance->elev_ft_node = fgGetNode(child->getStringValue(), true);
-    else
-      model->setElevationFt(node->getDoubleValue("elevation-ft"));
-
-    child = node->getChild("roll-deg-prop");
-    if (child != 0)
-      instance->roll_deg_node = fgGetNode(child->getStringValue(), true);
-    else
-      model->setRollDeg(node->getDoubleValue("roll-deg"));
-
-    child = node->getChild("pitch-deg-prop");
-    if (child != 0)
-      instance->pitch_deg_node = fgGetNode(child->getStringValue(), true);
-    else
-      model->setPitchDeg(node->getDoubleValue("pitch-deg"));
-
-    child = node->getChild("heading-deg-prop");
-    if (child != 0)
-      instance->heading_deg_node = fgGetNode(child->getStringValue(), true);
-    else
-      model->setHeadingDeg(node->getDoubleValue("heading-deg"));
-
-                               // Add this model to the global scene graph
-    globals->get_scenery()->get_scene_graph()->addKid(model->getSceneGraph());
-
-                               // Save this instance for updating
-    add_instance(instance);
-  }
+  SGPropertyNode * child = node->getChild("longitude-deg-prop");
+  if (child != 0)
+    instance->lon_deg_node = fgGetNode(child->getStringValue(), true);
+  else
+    model->setLongitudeDeg(node->getDoubleValue("longitude-deg"));
+
+  child = node->getChild("latitude-deg-prop");
+  if (child != 0)
+    instance->lat_deg_node = fgGetNode(child->getStringValue(), true);
+  else
+    model->setLatitudeDeg(node->getDoubleValue("latitude-deg"));
+
+  child = node->getChild("elevation-ft-prop");
+  if (child != 0)
+    instance->elev_ft_node = fgGetNode(child->getStringValue(), true);
+  else
+    model->setElevationFt(node->getDoubleValue("elevation-ft"));
+
+  child = node->getChild("roll-deg-prop");
+  if (child != 0)
+    instance->roll_deg_node = fgGetNode(child->getStringValue(), true);
+  else
+    model->setRollDeg(node->getDoubleValue("roll-deg"));
+
+  child = node->getChild("pitch-deg-prop");
+  if (child != 0)
+    instance->pitch_deg_node = fgGetNode(child->getStringValue(), true);
+  else
+    model->setPitchDeg(node->getDoubleValue("pitch-deg"));
+
+  child = node->getChild("heading-deg-prop");
+  if (child != 0)
+    instance->heading_deg_node = fgGetNode(child->getStringValue(), true);
+  else
+    model->setHeadingDeg(node->getDoubleValue("heading-deg"));
+
+                       // Add this model to the global scene graph
+  globals->get_scenery()->get_scene_graph()->addChild(model->getSceneGraph());
+
+
+                       // Save this instance for updating
+  add_instance(instance);
 }
 
 void
@@ -139,7 +163,14 @@ FGModelMgr::update (double dt)
     if (instance->heading_deg_node != 0)
       model->setHeadingDeg(instance->heading_deg_node->getDoubleValue());
 
-    instance->model->update( globals->get_scenery()->get_center() );
+    instance->model->update();
+
+    // OSGFIXME
+//     if (shadows && !instance->shadow) {
+//       osg::Node *branch = instance->model->getSceneGraph();
+//       shadows->addOccluder(branch, SGShadowVolume::occluderTypeTileObject);
+//       instance->shadow = true;
+//     }
   }
 }
 
@@ -162,14 +193,6 @@ FGModelMgr::remove_instance (Instance * instance)
     }
 }
 
-void
-FGModelMgr::draw ()
-{
-//   ssgSetNearFar(_nearplane, _farplane);
-//   ssgCullAndDraw(_scene);
-}
-
-
 \f
 ////////////////////////////////////////////////////////////////////////
 // Implementation of FGModelMgr::Instance
@@ -177,12 +200,14 @@ FGModelMgr::draw ()
 
 FGModelMgr::Instance::Instance ()
   : model(0),
+    node(0),
     lon_deg_node(0),
     lat_deg_node(0),
     elev_ft_node(0),
     roll_deg_node(0),
     pitch_deg_node(0),
-    heading_deg_node(0)
+    heading_deg_node(0),
+    shadow(false)
 {
 }
 
@@ -191,4 +216,46 @@ FGModelMgr::Instance::~Instance ()
   delete model;
 }
 
+
+\f
+////////////////////////////////////////////////////////////////////////
+// Implementation of FGModelMgr::Listener
+////////////////////////////////////////////////////////////////////////
+
+void
+FGModelMgr::Listener::childAdded(SGPropertyNode * parent, SGPropertyNode * child)
+{
+  if (strcmp(parent->getName(), "model") || strcmp(child->getName(), "load"))
+    return;
+
+  _mgr->add_model(parent);
+}
+
+void
+FGModelMgr::Listener::childRemoved(SGPropertyNode * parent, SGPropertyNode * child)
+{
+  if (strcmp(parent->getName(), "models") || strcmp(child->getName(), "model"))
+    return;
+
+  // search instance by node and remove it from scenegraph
+  vector<Instance *>::iterator it = _mgr->_instances.begin();
+  vector<Instance *>::iterator end = _mgr->_instances.end();
+
+  for (; it != end; ++it) {
+    Instance *instance = *it;
+    if (instance->node != child)
+      continue;
+
+    _mgr->_instances.erase(it);
+    osg::Node *branch = instance->model->getSceneGraph();
+    // OSGFIXME
+//     if (shadows && instance->shadow)
+//         shadows->deleteOccluder(branch);
+    globals->get_scenery()->get_scene_graph()->removeChild(branch);
+
+    delete instance;
+    break;
+  }
+}
+
 // end of modelmgr.cxx