-Ability to retrieve state data from PackedScene, closes #3413

scene/register_scene_types.cpp

@@ -608,6 +608,7 @@ void register_scene_types() {
 
 	OS::get_singleton()->yield(); //may take time to init
 
+	ObjectTypeDB::register_virtual_type<SceneState>();
 	ObjectTypeDB::register_type<PackedScene>();
 
 	ObjectTypeDB::register_type<SceneTree>();

scene/resources/packed_scene.cpp

@@ -1532,7 +1532,39 @@ void SceneState::add_editable_instance(const NodePath& p_path){
 	editable_instances.push_back(p_path);
 }
 
+DVector<String> SceneState::_get_node_groups(int p_idx) const {
 
+	Vector<StringName> groups = get_node_groups(p_idx);
+	DVector<String> ret;
+
+	for(int i=0;i<groups.size();i++)
+		ret.push_back(groups[i]);
+
+	return ret;
+}
+
+void SceneState::_bind_methods() {
+
+	//unbuild API
+
+	ObjectTypeDB::bind_method(_MD("get_node_count"),&SceneState::get_node_count);
+	ObjectTypeDB::bind_method(_MD("get_node_type","idx"),&SceneState::get_node_type);
+	ObjectTypeDB::bind_method(_MD("get_node_name","idx"),&SceneState::get_node_name);
+	ObjectTypeDB::bind_method(_MD("get_node_path","idx","for_parent"),&SceneState::get_node_path,DEFVAL(false));
+	ObjectTypeDB::bind_method(_MD("get_node_owner_path","idx"),&SceneState::get_node_owner_path);
+	ObjectTypeDB::bind_method(_MD("get_node_instance:PackedScene","idx"),&SceneState::get_node_instance);
+	ObjectTypeDB::bind_method(_MD("get_node_groups","idx"),&SceneState::_get_node_groups);
+	ObjectTypeDB::bind_method(_MD("get_node_property_count","idx"),&SceneState::get_node_property_count);
+	ObjectTypeDB::bind_method(_MD("get_node_property_name","idx","prop_idx"),&SceneState::get_node_property_name);
+	ObjectTypeDB::bind_method(_MD("get_node_property_value","idx","prop_idx"),&SceneState::get_node_property_value);
+	ObjectTypeDB::bind_method(_MD("get_connection_count"),&SceneState::get_connection_count);
+	ObjectTypeDB::bind_method(_MD("get_connection_source","idx"),&SceneState::get_connection_source);
+	ObjectTypeDB::bind_method(_MD("get_connection_signal","idx"),&SceneState::get_connection_signal);
+	ObjectTypeDB::bind_method(_MD("get_connection_target","idx"),&SceneState::get_connection_target);
+	ObjectTypeDB::bind_method(_MD("get_connection_method","idx"),&SceneState::get_connection_method);
+	ObjectTypeDB::bind_method(_MD("get_connection_flags","idx"),&SceneState::get_connection_flags);
+	ObjectTypeDB::bind_method(_MD("get_connection_binds","idx"),&SceneState::get_connection_binds);
+}
 
 SceneState::SceneState() {
 
@@ -1635,6 +1667,7 @@ void PackedScene::_bind_methods() {
 	ObjectTypeDB::bind_method(_MD("can_instance"),&PackedScene::can_instance);
 	ObjectTypeDB::bind_method(_MD("_set_bundled_scene"),&PackedScene::_set_bundled_scene);
 	ObjectTypeDB::bind_method(_MD("_get_bundled_scene"),&PackedScene::_get_bundled_scene);
+	ObjectTypeDB::bind_method(_MD("get_state:SceneState"),&PackedScene::get_state);
 
 	ADD_PROPERTY( PropertyInfo(Variant::DICTIONARY,"_bundled"),_SCS("_set_bundled_scene"),_SCS("_get_bundled_scene"));
 

scene/resources/packed_scene.h

@@ -36,6 +36,8 @@
 class SceneState : public Reference {
 
 	OBJ_TYPE( SceneState, Reference );
+
+
 	Vector<StringName> names;
 	Vector<Variant> variants;
 	Vector<NodePath> node_paths;
@@ -103,6 +105,13 @@ class SceneState : public Reference {
 	_FORCE_INLINE_ Ref<SceneState> _get_base_scene_state() const;
 
 	static bool disable_placeholders;
+
+	DVector<String> _get_node_groups(int p_idx) const;
+
+protected:
+
+	static void _bind_methods();
+
 public:
 
 	enum {