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godot/scene/io/scene_format_object.cpp

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/*************************************************************************/
/* 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
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