GODOT IS OPEN SOURCE

1 files changed, 851 insertions, 0 deletions

diff --git a/scene/io/scene_format_object.cpp b/scene/io/scene_format_object.cpp
new file mode 100644
index 0000000000..6ffae30282
--- /dev/null
+++ b/scene/io/scene_format_object.cpp
@@ -0,0 +1,851 @@
+/*************************************************************************/
+/*  scene_format_object.cpp                                              */
+/*************************************************************************/
+/*                       This file is part of:                           */
+/*                           GODOT ENGINE                                */
+/*                    http://www.godotengine.org                         */
+/*************************************************************************/
+/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur.                 */
+/*                                                                       */
+/* Permission is hereby granted, free of charge, to any person obtaining */
+/* a copy of this software and associated documentation files (the       */
+/* "Software"), to deal in the Software without restriction, including   */
+/* without limitation the rights to use, copy, modify, merge, publish,   */
+/* distribute, sublicense, and/or sell copies of the Software, and to    */
+/* permit persons to whom the Software is furnished to do so, subject to */
+/* the following conditions:                                             */
+/*                                                                       */
+/* The above copyright notice and this permission notice shall be        */
+/* included in all copies or substantial portions of the Software.       */
+/*                                                                       */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
+/*************************************************************************/
+#include "scene_format_object.h"
+#include "print_string.h"
+#include "globals.h"
+#include "scene/resources/packed_scene.h"
+#include "io/resource_loader.h"
+
+#ifdef OLD_SCENE_FORMAT_ENABLED
+
+void SceneFormatSaverObject::save_node(const Node* p_root,const Node* p_node,const Node* p_owner,ObjectFormatSaver *p_saver,String p_base_path,uint32_t p_flags,Map<const Node*,uint32_t>& owner_id) const {
+
+	if (p_node!=p_root && p_node->get_owner()==NULL)
+		return;
+
+
+	if (p_flags&SceneSaver::FLAG_BUNDLE_INSTANCED_SCENES || p_node->get_owner() == p_owner || p_node == p_owner ) {
+		
+		Dictionary d;
+		if (p_root!=p_node) {
+			d["path"]=p_root->get_path_to(p_node->get_parent());
+		}
+			
+		d["name"]=p_node->get_name();
+		
+		/* Connections */
+
+		List<MethodInfo> signal_list;
+
+		p_node->get_signal_list(&signal_list);
+		
+		int conn_count=0;
+
+		Set<Node::Connection> exclude_connections;
+
+		if (!(p_flags&SceneSaver::FLAG_BUNDLE_INSTANCED_SCENES)) {
+
+			Vector<Node::Connection> ex = p_node->get_instance_connections();
+			for(int i=0;i<ex.size();i++) {
+				exclude_connections.insert(ex[i]);
+			}
+		}
+
+		for (List<MethodInfo>::Element *S=signal_list.front();S;S=S->next()) {
+
+			List<Node::Connection> connections;
+			p_node->get_signal_connection_list(S->get().name,&connections);
+			for(List<Node::Connection>::Element *E=connections.front();E;E=E->next()) {
+
+				Node::Connection &c=E->get();
+				if (!(c.flags&Object::CONNECT_PERSIST))
+					continue;
+				if (exclude_connections.has(c))
+					continue;
+
+				Node *target = c.target->cast_to<Node>();
+				if (!target)
+					continue; //connected to something not a node, ignoring
+
+				Dictionary cd;
+				cd["signal"]=c.signal;
+				cd["target"]=p_node->get_path_to(target);
+				cd["method"]=c.method;
+				cd["realtime"]=!(c.flags&Object::CONNECT_DEFERRED);
+				if (c.binds.size())
+					cd["binds"]=c.binds;
+				d["connection/"+itos(conn_count+1)]=cd;
+
+				conn_count++;
+			}
+		}
+
+		d["connection_count"]=conn_count;
+		if (owner_id.has(p_node->get_owner())) {
+
+			d["owner"]=owner_id[p_node->get_owner()];
+		}
+		
+		/* Groups */
+		
+		DVector<String> group_array;
+		List<Node::GroupInfo> groups;
+		p_node->get_groups(&groups);
+		Set<StringName> exclude_groups;
+
+		if (!(p_flags&SceneSaver::FLAG_BUNDLE_INSTANCED_SCENES)) {
+			//generate groups to exclude (came from instance)
+			Vector<StringName> eg;
+			eg=p_node->get_instance_groups();
+			for(int i=0;i<eg.size();i++)
+				exclude_groups.insert(eg[i]);
+		}
+
+		for(List<Node::GroupInfo>::Element*E=groups.front();E;E=E->next()) {
+			
+			if (E->get().persistent && !exclude_groups.has(E->get().name))
+				group_array.push_back(E->get().name);
+		}
+		
+		if (group_array.size())
+			d["groups"]=group_array;
+
+		/* Save */
+		
+		if (p_owner!=p_node && p_node->get_filename()!="") {
+
+			String instance_path;
+			if (p_flags&SceneSaver::FLAG_RELATIVE_PATHS)
+				instance_path=p_base_path.path_to_file(Globals::get_singleton()->localize_path(p_node->get_filename()));
+			else
+				instance_path=p_node->get_filename();
+			d["instance"]=instance_path;
+
+			if (p_flags&SceneSaver::FLAG_BUNDLE_INSTANCED_SCENES) {
+
+				int id = owner_id.size();
+				d["owner_id"]=id;
+				owner_id[p_node]=id;
+
+				p_saver->save(p_node,d);
+
+				//owner change!
+				for (int i=0;i<p_node->get_child_count();i++) {
+
+					save_node(p_root,p_node->get_child(i),p_node,p_saver,p_base_path,p_flags,owner_id);
+				}
+				return;
+
+			} else {
+				DVector<String> prop_names;
+				Array prop_values;
+
+				List<PropertyInfo> properties;
+				p_node->get_property_list(&properties);
+
+				//instance state makes sure that only changes to instance are saved
+				Dictionary instance_state=p_node->get_instance_state();
+
+				for(List<PropertyInfo>::Element *E=properties.front();E;E=E->next()) {
+
+					if (!(E->get().usage&PROPERTY_USAGE_STORAGE))
+						continue;
+
+					String name=E->get().name;
+					Variant value=p_node->get(E->get().name);
+
+					if (!instance_state.has(name))
+						continue; // did not change since it was loaded, not save
+					if (value==instance_state[name])
+						continue;
+					prop_names.push_back( name );
+					prop_values.push_back( value );
+
+				}
+
+				d["override_names"]=prop_names;
+				d["override_values"]=prop_values;
+
+				p_saver->save(NULL,d);
+			}
+		} else {
+			
+			p_saver->save(p_node,d);	
+		}		
+	}
+	
+	for (int i=0;i<p_node->get_child_count();i++) {
+		
+		save_node(p_root,p_node->get_child(i),p_owner,p_saver,p_base_path,p_flags,owner_id);
+	}
+}
+
+
+Error SceneFormatSaverObject::save(const String &p_path,const Node* p_scene,uint32_t p_flags,const Ref<OptimizedSaver> &p_optimizer) {
+		
+	String extension=p_path.extension();
+	if (extension=="scn")
+		extension="bin";
+	if (extension=="xscn")
+		extension="xml";
+
+	String local_path=Globals::get_singleton()->localize_path(p_path);
+	uint32_t saver_flags=0;
+	if (p_flags&SceneSaver::FLAG_RELATIVE_PATHS)
+		saver_flags|=ObjectSaver::FLAG_RELATIVE_PATHS;
+	if (p_flags&SceneSaver::FLAG_BUNDLE_RESOURCES)
+		saver_flags|=ObjectSaver::FLAG_BUNDLE_RESOURCES;
+	if (p_flags&SceneSaver::FLAG_OMIT_EDITOR_PROPERTIES)
+		saver_flags|=ObjectSaver::FLAG_OMIT_EDITOR_PROPERTIES;
+	if (p_flags&SceneSaver::FLAG_SAVE_BIG_ENDIAN)
+		saver_flags|=ObjectSaver::FLAG_SAVE_BIG_ENDIAN;
+
+	ObjectFormatSaver *saver = ObjectSaver::instance_format_saver(local_path,"SCENE",extension,saver_flags,p_optimizer);
+	
+	ERR_FAIL_COND_V(!saver,ERR_FILE_UNRECOGNIZED);
+	
+	/* SAVE SCENE */
+	
+	Map<const Node*,uint32_t> node_id_map;
+	save_node(p_scene,p_scene,p_scene,saver,local_path,p_flags,node_id_map);
+		
+	memdelete(saver);
+	
+	return OK;
+}
+
+void SceneFormatSaverObject::get_recognized_extensions(List<String> *p_extensions) const {
+	
+	p_extensions->push_back("xml");
+	p_extensions->push_back("scn");
+	p_extensions->push_back("xscn");
+
+//	ObjectSaver::get_recognized_extensions(p_extensions);
+}
+
+
+/////////////////////////////////////////////////////////////////
+/////////////////////////////////////////////////////////////////
+/////////////////////////////////////////////////////////////////
+
+void SceneFormatLoaderObject::_apply_meta(Node *node,  const Variant&meta, ObjectFormatLoader *p_loader,List<ConnectionItem>& connections,Error& r_err,Map<uint32_t,Node*>& owner_map) {
+
+	r_err = OK;
+
+
+	Dictionary d=meta;
+
+	if (!d.has("name")) {
+
+		r_err=ERR_WTF;
+		memdelete(node);
+		ERR_FAIL_COND(!d.has("name"));
+	}
+
+
+	node->set_name(d["name"]);
+	int connection_count=d.has("connection_count")?d["connection_count"].operator int():0;
+
+
+	for (int i=0;i<connection_count;i++) {
+
+		Dictionary cd=d["connection/"+itos(i+1)];
+
+		ERR_CONTINUE(!cd.has("target"));
+		ERR_CONTINUE(!cd.has("method"));
+		ERR_CONTINUE(!cd.has("realtime"));
+		ERR_CONTINUE(!cd.has("signal"));
+
+		ConnectionItem ci;
+
+		ci.node=node;
+		ci.target=cd["target"];
+		ci.method=cd["method"];
+		ci.signal=cd["signal"];
+		ci.realtime=cd["realtime"];
+		if (cd.has("binds"))
+			ci.binds=cd["binds"];
+
+		connections.push_back(ci);
+
+	}
+
+	DVector<String> groups=d.has("groups")?d["groups"].operator DVector<String>():DVector<String>();
+	for (int i=0;i<groups.size();i++) {
+
+		node->add_to_group(groups[i],true);
+	}
+
+}
+
+
+
+Ref<SceneInteractiveLoader> SceneFormatLoaderObject::load_interactive(const String &p_path,bool p_save_root_state) {
+
+	SceneInteractiveLoaderObject *sil = memnew( SceneInteractiveLoaderObject(p_path,p_save_root_state) );
+
+	if (sil->error!=OK) {
+
+		memdelete( sil );
+		return Ref<SceneInteractiveLoader>();
+	}
+
+	return Ref<SceneInteractiveLoader>( sil );
+
+}
+
+
+Node* SceneFormatLoaderObject::load_node(Object *obj, const Variant& meta, Node *p_root, ObjectFormatLoader *p_loader,List<ConnectionItem>& connections,Error& r_err,bool p_save_instance_state,Map<uint32_t,Node*>& owner_map) {
+
+	r_err = OK;
+		
+	Node *node=obj->cast_to<Node>();
+
+	_apply_meta(node,meta,p_loader,connections,r_err,owner_map);
+	if (r_err!=OK)
+		return NULL;
+
+	Dictionary d=meta;
+
+	if (p_root) {
+		NodePath path=d.has("path")?d["path"].operator NodePath():NodePath("."); 
+
+		Node *parent=p_root->get_node(path);
+		if (!parent) {
+			memdelete(node);
+			r_err=ERR_FILE_CORRUPT;
+			ERR_FAIL_COND_V(!parent,NULL);
+		}
+
+		parent->add_child(node);
+
+		if (d.has("owner_id")) {
+			//is owner
+			owner_map[d["owner_id"]]=node;
+			if (d.has("instance"))
+				node->set_filename(d["instance"]);
+
+		}
+
+		if (d.has("owner")) {
+
+			uint32_t owner = d["owner"];
+			ERR_FAIL_COND_V(!owner_map.has(owner),NULL);
+			node->set_owner(owner_map[owner]);
+		} else {
+
+			node->set_owner(p_root);
+		}
+	}
+	
+	return node;
+}
+
+void SceneFormatLoaderObject::_apply_connections(List<ConnectionItem>& connections) {
+
+	int idx=0;
+	for (List<ConnectionItem>::Element *E=connections.front();E;E=E->next()) {
+
+		ConnectionItem &ci=E->get();
+		Node *target = ci.node->get_node(ci.target);
+		ERR_CONTINUE(!target);
+		ci.node->connect(ci.signal,target,ci.method,ci.binds,(ci.realtime?0:Object::CONNECT_DEFERRED)|Object::CONNECT_PERSIST);
+		idx++;
+	}
+
+}
+
+Node* SceneFormatLoaderObject::load(const String &p_path,bool p_save_instance_state) {
+
+	List<ConnectionItem> connections;
+
+	String extension=p_path.extension();
+	if (extension=="scn")
+		extension="bin";
+	if (extension=="xscn")
+		extension="xml";
+
+	String local_path = Globals::get_singleton()->localize_path(p_path);
+
+	ObjectFormatLoader *loader = ObjectLoader::instance_format_loader(local_path,"SCENE",extension);
+
+	ERR_EXPLAIN("Couldn't load scene: "+p_path);
+	ERR_FAIL_COND_V(!loader,NULL);
+	
+	Node *root=NULL;
+	Map<uint32_t,Node*> owner_map;
+	
+	while(true) {
+	
+		Object *obj=NULL;
+		Variant metav;
+		Error r_err=loader->load(&obj,metav);
+
+		if (r_err == ERR_SKIP) {
+			continue;
+		};
+		
+		if (r_err==ERR_FILE_EOF) {
+			memdelete(loader);
+			ERR_FAIL_COND_V(!root,NULL);
+			_apply_connections(connections);
+			return root;
+		}
+
+		if (r_err || (!obj && metav.get_type()==Variant::NIL)) {
+			memdelete(loader);
+			ERR_EXPLAIN("Object Loader Failed for Scene: "+p_path)	;
+			ERR_FAIL_COND_V( r_err, NULL);
+			ERR_EXPLAIN("Object Loader Failed for Scene: "+p_path)	;
+			ERR_FAIL_COND_V( !obj && metav.get_type()==Variant::NIL,NULL);
+		}
+		
+		if (obj) {
+			if (obj->cast_to<Node>()) {
+			
+				Error err;
+				Node* node = load_node(obj, metav, root, loader,connections,err,p_save_instance_state,owner_map);
+				if (err)
+					memdelete(loader);
+					
+				ERR_FAIL_COND_V( err, NULL );
+				if (!root)
+					root=node;
+			} else {
+			
+				memdelete(loader);
+				ERR_FAIL_V( NULL );
+				
+			}	
+		} else {
+		
+			// check for instance
+			Dictionary meta=metav;
+			if (meta.has("instance")) {
+				if (!root) {
+				
+					memdelete(loader);
+					ERR_FAIL_COND_V(!root,NULL);
+				}
+				
+				String path = meta["instance"];
+
+				if (path.find("://")==-1 && path.is_rel_path()) {
+					// path is relative to file being loaded, so convert to a resource path
+					path=Globals::get_singleton()->localize_path(
+							local_path.get_base_dir()+"/"+path);
+				}				
+
+
+				Node *scene = SceneLoader::load(path);
+
+				if (!scene) {
+
+					Ref<PackedScene> sd = ResourceLoader::load(path);
+					if (sd.is_valid()) {
+
+						scene=sd->instance();
+					}
+				}
+
+				
+				if (!scene) {
+				
+					memdelete(loader);
+					ERR_FAIL_COND_V(!scene,NULL);
+				}
+
+				if (p_save_instance_state)
+					scene->generate_instance_state();
+
+
+				Error err;
+				_apply_meta(scene,metav,loader,connections,err,owner_map);
+				if (err!=OK) {
+					memdelete(loader);
+					ERR_FAIL_COND_V(err!=OK,NULL);
+				}
+				
+				Node *parent=root;
+				
+				if (meta.has("path"))
+					parent=root->get_node(meta["path"]);
+					
+				
+				if (!parent) {
+				
+					memdelete(loader);
+					ERR_FAIL_COND_V(!parent,NULL);
+				}
+				
+
+				if (meta.has("override_names") && meta.has("override_values")) {
+				
+					DVector<String> override_names=meta["override_names"];
+					Array override_values=meta["override_values"];
+					
+					int len = override_names.size();
+					if ( len > 0 && len == override_values.size() ) {
+					
+						DVector<String>::Read names = override_names.read();
+						
+						for(int i=0;i<len;i++) {
+						
+							scene->set(names[i],override_values[i]);
+						}
+					
+					}
+				
+				}
+				
+				scene->set_filename(path);
+
+				parent->add_child(scene);
+				scene->set_owner(root);				
+			}
+		}
+	}
+		
+	return NULL;	
+}
+
+void SceneFormatLoaderObject::get_recognized_extensions(List<String> *p_extensions) const {
+
+	p_extensions->push_back("xml");
+	p_extensions->push_back("scn");
+	p_extensions->push_back("xscn");
+
+//	ObjectLoader::get_recognized_extensions(p_extensions);
+	
+}
+
+
+
+///////////////////////////////////////////////////
+
+
+void SceneInteractiveLoaderObject::_apply_meta(Node *node,  const Variant&meta, ObjectFormatLoader *p_loader,List<ConnectionItem>& connections,Error& r_err,Map<uint32_t,Node*>& owner_map) {
+
+	r_err = OK;
+
+
+	Dictionary d=meta;
+
+	if (!d.has("name")) {
+
+		r_err=ERR_WTF;
+		memdelete(node);
+		ERR_FAIL_COND(!d.has("name"));
+	}
+
+
+	node->set_name(d["name"]);
+	int connection_count=d.has("connection_count")?d["connection_count"].operator int():0;
+
+
+	for (int i=0;i<connection_count;i++) {
+
+		Dictionary cd=d["connection/"+itos(i+1)];
+
+		ERR_CONTINUE(!cd.has("target"));
+		ERR_CONTINUE(!cd.has("method"));
+		ERR_CONTINUE(!cd.has("realtime"));
+		ERR_CONTINUE(!cd.has("signal"));
+
+		ConnectionItem ci;
+
+		ci.node=node;
+		ci.target=cd["target"];
+		ci.method=cd["method"];
+		ci.signal=cd["signal"];
+		ci.realtime=cd["realtime"];
+		if (cd.has("binds"))
+			ci.binds=cd["binds"];
+
+		connections.push_back(ci);
+
+	}
+
+	DVector<String> groups=d.has("groups")?d["groups"].operator DVector<String>():DVector<String>();
+	for (int i=0;i<groups.size();i++) {
+
+		node->add_to_group(groups[i],true);
+	}
+
+}
+
+
+
+Node* SceneInteractiveLoaderObject::load_node(Object *obj, const Variant& meta, Node *p_root, ObjectFormatLoader *p_loader,List<ConnectionItem>& connections,Error& r_err,bool p_save_instance_state,Map<uint32_t,Node*>& owner_map) {
+
+	r_err = OK;
+
+	Node *node=obj->cast_to<Node>();
+
+	_apply_meta(node,meta,p_loader,connections,r_err,owner_map);
+	if (r_err!=OK)
+		return NULL;
+
+	Dictionary d=meta;
+
+	if (p_root) {
+		NodePath path=d.has("path")?d["path"].operator NodePath():NodePath(".");
+
+		Node *parent=p_root->get_node(path);
+		if (!parent) {
+			memdelete(node);
+			r_err=ERR_FILE_CORRUPT;
+			ERR_FAIL_COND_V(!parent,NULL);
+		}
+
+		parent->add_child(node);
+
+		if (d.has("owner_id")) {
+			//is owner
+			owner_map[d["owner_id"]]=node;
+			if (d.has("instance"))
+				node->set_filename(d["instance"]);
+
+		}
+
+		if (d.has("owner")) {
+
+			uint32_t owner = d["owner"];
+			ERR_FAIL_COND_V(!owner_map.has(owner),NULL);
+			node->set_owner(owner_map[owner]);
+		} else {
+
+			node->set_owner(p_root);
+		}
+	}
+
+	return node;
+}
+
+void SceneInteractiveLoaderObject::_apply_connections(List<ConnectionItem>& connections) {
+
+	int idx=0;
+	for (List<ConnectionItem>::Element *E=connections.front();E;E=E->next()) {
+
+		ConnectionItem &ci=E->get();
+		Node *target = ci.node->get_node(ci.target);
+		ERR_CONTINUE(!target);
+		ci.node->connect(ci.signal,target,ci.method,ci.binds,(ci.realtime?0:Object::CONNECT_DEFERRED)|Object::CONNECT_PERSIST);
+		idx++;
+	}
+
+}
+
+SceneInteractiveLoaderObject::SceneInteractiveLoaderObject(const String &p_path,bool p_save_root_state) {
+
+	error=OK;
+	path=p_path;
+	save_instance_state=p_save_root_state;
+	node_path=p_path;
+	root=NULL;
+	stage_max=1;
+	stage=0;
+
+
+	String extension=p_path.extension();
+	if (extension=="scn")
+		extension="bin";
+	if (extension=="xscn")
+		extension="xml";
+
+	local_path = Globals::get_singleton()->localize_path(p_path);
+
+	loader = ObjectLoader::instance_format_loader(local_path,"SCENE",extension);
+
+	if (!loader) {
+
+		error=ERR_CANT_OPEN;
+	}
+	ERR_EXPLAIN("Couldn't load scene: "+p_path);
+	ERR_FAIL_COND(!loader);
+
+}
+
+
+
+void SceneInteractiveLoaderObject::set_local_path(const String& p_local_path) {
+
+	node_path=p_local_path;
+}
+
+Node *SceneInteractiveLoaderObject::get_scene() {
+
+	if (error==ERR_FILE_EOF)
+		return root;
+	return NULL;
+}
+Error SceneInteractiveLoaderObject::poll() {
+
+	if (error!=OK)
+		return error;
+
+	Object *obj=NULL;
+	Variant metav;
+	Error r_err=loader->load(&obj,metav);
+
+
+	if (r_err == ERR_SKIP) {
+		stage++;
+		return OK;
+	};
+
+	if (r_err==ERR_FILE_EOF) {
+		memdelete(loader);
+		error=ERR_FILE_CORRUPT;
+		ERR_FAIL_COND_V(!root,ERR_FILE_CORRUPT);
+		_apply_connections(connections);
+		error=ERR_FILE_EOF;
+		if (root)
+			root->set_filename(node_path);
+		return error;
+	}
+
+	if (r_err || (!obj && metav.get_type()==Variant::NIL)) {
+		memdelete(loader);
+		error=ERR_FILE_CORRUPT;
+		ERR_EXPLAIN("Object Loader Failed for Scene: "+path);
+		ERR_FAIL_COND_V( r_err, ERR_FILE_CORRUPT);
+		ERR_EXPLAIN("Object Loader Failed for Scene: "+path);
+		ERR_FAIL_COND_V( !obj && metav.get_type()==Variant::NIL,ERR_FILE_CORRUPT);
+	}
+
+	if (obj) {
+		if (obj->cast_to<Node>()) {
+
+			Error err;
+			Node* node = load_node(obj, metav, root, loader,connections,err,save_instance_state,owner_map);
+			if (err) {
+				error=ERR_FILE_CORRUPT;
+				memdelete(loader);
+			}
+
+			ERR_FAIL_COND_V( err, ERR_FILE_CORRUPT );
+			if (!root)
+				root=node;
+		} else {
+
+			error=ERR_FILE_CORRUPT;
+			memdelete(loader);
+			ERR_EXPLAIN("Loaded something not a node.. (?)");
+			ERR_FAIL_V( ERR_FILE_CORRUPT );
+
+		}
+	} else {
+
+		// check for instance
+		Dictionary meta=metav;
+		if (meta.has("instance")) {
+
+			if (!root) {
+
+				error=ERR_FILE_CORRUPT;
+				memdelete(loader);
+				ERR_FAIL_COND_V(!root,ERR_FILE_CORRUPT);
+			}
+
+			String path = meta["instance"];
+
+			if (path.find("://")==-1 && path.is_rel_path()) {
+				// path is relative to file being loaded, so convert to a resource path
+				path=Globals::get_singleton()->localize_path(
+						local_path.get_base_dir()+"/"+path);
+			}
+
+			Node *scene = SceneLoader::load(path);
+
+			if (!scene) {
+
+				error=ERR_FILE_CORRUPT;
+				memdelete(loader);
+				ERR_FAIL_COND_V(!scene,ERR_FILE_CORRUPT);
+			}
+
+			if (save_instance_state)
+				scene->generate_instance_state();
+
+
+			Error err;
+			_apply_meta(scene,metav,loader,connections,err,owner_map);
+			if (err!=OK) {
+				error=ERR_FILE_CORRUPT;
+				memdelete(loader);
+				ERR_FAIL_COND_V(err!=OK,ERR_FILE_CORRUPT);
+			}
+
+			Node *parent=root;
+
+			if (meta.has("path"))
+				parent=root->get_node(meta["path"]);
+
+
+			if (!parent) {
+
+				error=ERR_FILE_CORRUPT;
+				memdelete(loader);
+				ERR_FAIL_COND_V(!parent,ERR_FILE_CORRUPT);
+			}
+
+
+			if (meta.has("override_names") && meta.has("override_values")) {
+
+				DVector<String> override_names=meta["override_names"];
+				Array override_values=meta["override_values"];
+
+				int len = override_names.size();
+				if ( len > 0 && len == override_values.size() ) {
+
+					DVector<String>::Read names = override_names.read();
+
+					for(int i=0;i<len;i++) {
+
+						scene->set(names[i],override_values[i]);
+					}
+
+				}
+
+			}
+
+			scene->set_filename(path);
+
+			parent->add_child(scene);
+			scene->set_owner(root);
+		}
+	}
+
+	stage++;
+	error=OK;
+	return error;
+
+}
+int SceneInteractiveLoaderObject::get_stage() const {
+
+	return stage;
+}
+int SceneInteractiveLoaderObject::get_stage_count() const {
+
+	return stage_max;
+}
+
+
+#endif