Several performance improvements, mainly in loading and instancing scenes and resources.

A general speedup should be apparent, with even more peformance increase when compiling optimized.

WARNING: Tested and it seems to work, but if something breaks, please report.

20 files changed, 223 insertions, 86 deletions

diff --git a/core/bind/core_bind.cpp b/core/bind/core_bind.cpp
index 26b1dac6f1..120cb0000b 100644
--- a/core/bind/core_bind.cpp
+++ b/core/bind/core_bind.cpp
@@ -1772,6 +1772,7 @@ void _Thread::_start_func(void *ud) {
 	memdelete(tud);
 	Variant::CallError ce;
 	const Variant* arg[1]={&t->userdata};
+
 	t->ret=t->target_instance->call(t->target_method,arg,1,ce);
 	if (ce.error!=Variant::CallError::CALL_OK) {
 
@@ -1796,6 +1797,7 @@ void _Thread::_start_func(void *ud) {
 			default: {}
 		}
 
+
 		ERR_EXPLAIN("Could not call function '"+t->target_method.operator String()+"'' starting thread ID: "+t->get_id()+" Reason: "+reason);
 		ERR_FAIL();
 	}
diff --git a/core/globals.cpp b/core/globals.cpp
index 8a7d66b68a..062adc21f9 100644
--- a/core/globals.cpp
+++ b/core/globals.cpp
@@ -1321,7 +1321,7 @@ Vector<String> Globals::get_optimizer_presets() const {
 
 		if (!E->get().name.begins_with("optimizer_presets/"))
 			continue;
-		names.push_back(E->get().name.get_slice("/",1));
+		names.push_back(E->get().name.get_slicec('/',1));
 	}
 
 	names.sort();
diff --git a/core/image.cpp b/core/image.cpp
index 037018519e..c31fa47847 100644
--- a/core/image.cpp
+++ b/core/image.cpp
@@ -1016,10 +1016,10 @@ void Image::create( const char ** p_xpm ) {
 			String line_str=line_ptr;
 			line_str.replace("\t"," ");
 			
-			size_width=line_str.get_slice(" ",0).to_int();
-			size_height=line_str.get_slice(" ",1).to_int();
-			colormap_size=line_str.get_slice(" ",2).to_int();
-			pixelchars=line_str.get_slice(" ",3).to_int();
+			size_width=line_str.get_slicec(' ',0).to_int();
+			size_height=line_str.get_slicec(' ',1).to_int();
+			colormap_size=line_str.get_slicec(' ',2).to_int();
+			pixelchars=line_str.get_slicec(' ',3).to_int();
 			ERR_FAIL_COND(colormap_size > 32766);
 			ERR_FAIL_COND(pixelchars > 5);
 			ERR_FAIL_COND(size_width > 32767);
diff --git a/core/io/http_client.cpp b/core/io/http_client.cpp
index dbd009e319..24012660d2 100644
--- a/core/io/http_client.cpp
+++ b/core/io/http_client.cpp
@@ -325,7 +325,7 @@ Error HTTPClient::poll(){
 
 						if (i==0 && responses[i].begins_with("HTTP")) {
 
-							String num = responses[i].get_slice(" ",1);
+							String num = responses[i].get_slicec(' ',1);
 							response_num=num.to_int();
 						} else {
 
diff --git a/core/io/ip_address.cpp b/core/io/ip_address.cpp
index c5506f1a74..ed5a45c9ef 100644
--- a/core/io/ip_address.cpp
+++ b/core/io/ip_address.cpp
@@ -47,7 +47,7 @@ IP_Address::IP_Address(const String& p_string) {
 	}
 	for(int i=0;i<4;i++) {
 
-		field[i]=p_string.get_slice(".",i).to_int();
+		field[i]=p_string.get_slicec('.',i).to_int();
 	}
 }
 
diff --git a/core/io/resource_format_binary.cpp b/core/io/resource_format_binary.cpp
index 0f6f8a74b1..c6cf631de6 100644
--- a/core/io/resource_format_binary.cpp
+++ b/core/io/resource_format_binary.cpp
@@ -1819,7 +1819,7 @@ Error ResourceFormatSaverBinaryInstance::save(const String &p_path,const RES& p_
 					Property p;
 					p.name_idx=get_string_index(F->get().name);
 					p.value=E->get()->get(F->get().name);
-					if (F->get().usage&PROPERTY_USAGE_STORE_IF_NONZERO && p.value.is_zero())
+					if ((F->get().usage&PROPERTY_USAGE_STORE_IF_NONZERO && p.value.is_zero())||(F->get().usage&PROPERTY_USAGE_STORE_IF_NONONE && p.value.is_one()) )
 						continue;
 					p.pi=F->get();										
 
diff --git a/core/io/resource_format_xml.cpp b/core/io/resource_format_xml.cpp
index 36746a4111..b744cbf967 100644
--- a/core/io/resource_format_xml.cpp
+++ b/core/io/resource_format_xml.cpp
@@ -1207,47 +1207,47 @@ Error ResourceInteractiveLoaderXML::parse_property(Variant& r_v, String &r_name)
 
 
 		r_v=Vector3(
-				data.get_slice(",",0).to_double(),
-				data.get_slice(",",1).to_double(),
-				data.get_slice(",",2).to_double()
+				data.get_slicec(',',0).to_double(),
+				data.get_slicec(',',1).to_double(),
+				data.get_slicec(',',2).to_double()
 			   );
 
 	} else if (type=="vector2") {
 
 
 		r_v=Vector2(
-				data.get_slice(",",0).to_double(),
-				data.get_slice(",",1).to_double()
+				data.get_slicec(',',0).to_double(),
+				data.get_slicec(',',1).to_double()
 			   );
 
 	} else if (type=="plane") {
 
 		r_v=Plane(
-				data.get_slice(",",0).to_double(),
-				data.get_slice(",",1).to_double(),
-				data.get_slice(",",2).to_double(),
-				data.get_slice(",",3).to_double()
+				data.get_slicec(',',0).to_double(),
+				data.get_slicec(',',1).to_double(),
+				data.get_slicec(',',2).to_double(),
+				data.get_slicec(',',3).to_double()
 			 );
 
 	} else if (type=="quaternion") {
 
 		r_v=Quat(
-				data.get_slice(",",0).to_double(),
-				data.get_slice(",",1).to_double(),
-				data.get_slice(",",2).to_double(),
-				data.get_slice(",",3).to_double()
+				data.get_slicec(',',0).to_double(),
+				data.get_slicec(',',1).to_double(),
+				data.get_slicec(',',2).to_double(),
+				data.get_slicec(',',3).to_double()
 			 );
 
 	} else if (type=="rect2") {
 
 		r_v=Rect2(
 			Vector2(
-				data.get_slice(",",0).to_double(),
-				data.get_slice(",",1).to_double()
+				data.get_slicec(',',0).to_double(),
+				data.get_slicec(',',1).to_double()
 			),
 			Vector2(
-				data.get_slice(",",2).to_double(),
-				data.get_slice(",",3).to_double()
+				data.get_slicec(',',2).to_double(),
+				data.get_slicec(',',3).to_double()
 			)
 		);
 
@@ -1256,14 +1256,14 @@ Error ResourceInteractiveLoaderXML::parse_property(Variant& r_v, String &r_name)
 
 		r_v=AABB(
 			Vector3(
-				data.get_slice(",",0).to_double(),
-				data.get_slice(",",1).to_double(),
-				data.get_slice(",",2).to_double()
+				data.get_slicec(',',0).to_double(),
+				data.get_slicec(',',1).to_double(),
+				data.get_slicec(',',2).to_double()
 			),
 			Vector3(
-				data.get_slice(",",3).to_double(),
-				data.get_slice(",",4).to_double(),
-				data.get_slice(",",5).to_double()
+				data.get_slicec(',',3).to_double(),
+				data.get_slicec(',',4).to_double(),
+				data.get_slicec(',',5).to_double()
 			)
 		);
 
@@ -1272,7 +1272,7 @@ Error ResourceInteractiveLoaderXML::parse_property(Variant& r_v, String &r_name)
 		Matrix32 m3;
 		for (int i=0;i<3;i++) {
 			for (int j=0;j<2;j++) {
-				m3.elements[i][j]=data.get_slice(",",i*2+j).to_double();
+				m3.elements[i][j]=data.get_slicec(',',i*2+j).to_double();
 			}
 		}
 		r_v=m3;
@@ -1282,7 +1282,7 @@ Error ResourceInteractiveLoaderXML::parse_property(Variant& r_v, String &r_name)
 		Matrix3 m3;
 		for (int i=0;i<3;i++) {
 			for (int j=0;j<3;j++) {
-				m3.elements[i][j]=data.get_slice(",",i*3+j).to_double();
+				m3.elements[i][j]=data.get_slicec(',',i*3+j).to_double();
 			}
 		}
 		r_v=m3;
@@ -1292,24 +1292,24 @@ Error ResourceInteractiveLoaderXML::parse_property(Variant& r_v, String &r_name)
 		Transform tr;
 		for (int i=0;i<3;i++) {
 			for (int j=0;j<3;j++) {
-				tr.basis.elements[i][j]=data.get_slice(",",i*3+j).to_double();
+				tr.basis.elements[i][j]=data.get_slicec(',',i*3+j).to_double();
 			}
 
 		}
 		tr.origin=Vector3(
-			     data.get_slice(",",9).to_double(),
-			     data.get_slice(",",10).to_double(),
-			     data.get_slice(",",11).to_double()
+			     data.get_slicec(',',9).to_double(),
+			     data.get_slicec(',',10).to_double(),
+			     data.get_slicec(',',11).to_double()
 			   );
 		r_v=tr;
 
 	} else if (type=="color") {
 
 		r_v=Color(
-			   data.get_slice(",",0).to_double(),
-			   data.get_slice(",",1).to_double(),
-			   data.get_slice(",",2).to_double(),
-			   data.get_slice(",",3).to_double()
+			   data.get_slicec(',',0).to_double(),
+			   data.get_slicec(',',1).to_double(),
+			   data.get_slicec(',',2).to_double(),
+			   data.get_slicec(',',3).to_double()
 			 );
 
 	} else if (type=="node_path") {
@@ -1674,8 +1674,8 @@ void ResourceInteractiveLoaderXML::open(FileAccess *p_f) {
 		ERR_FAIL();
 	}
 
-	int major = version.get_slice(".",0).to_int();
-	int minor = version.get_slice(".",1).to_int();
+	int major = version.get_slicec('.',0).to_int();
+	int minor = version.get_slicec('.',1).to_int();
 
 	if (major>VERSION_MAJOR) {
 
@@ -2607,9 +2607,12 @@ Error ResourceFormatSaverXMLInstance::save(const String &p_path,const RES& p_res
 
 				String name = PE->get().name;
 				Variant value = res->get(name);
-				if (PE->get().usage&PROPERTY_USAGE_STORE_IF_NONZERO && value.is_zero())
+
+
+				if ((PE->get().usage&PROPERTY_USAGE_STORE_IF_NONZERO && value.is_zero())||(PE->get().usage&PROPERTY_USAGE_STORE_IF_NONONE && value.is_one()) )
 					continue;
 
+
 				write_property(name,value);
 			}
 
diff --git a/core/method_bind.cpp b/core/method_bind.cpp
index 3429e5f0af..ce57380434 100644
--- a/core/method_bind.cpp
+++ b/core/method_bind.cpp
@@ -40,8 +40,8 @@ PropertyInfo MethodBind::get_argument_info(int p_argument) const {
 		PropertyInfo pi( get_argument_type(p_argument), name );
 		if ((pi.type==Variant::OBJECT) && name.find(":")!=-1) {
 			pi.hint=PROPERTY_HINT_RESOURCE_TYPE;
-			pi.hint_string=name.get_slice(":",1);
-			pi.name=name.get_slice(":",0);
+			pi.hint_string=name.get_slicec(':',1);
+			pi.name=name.get_slicec(':',0);
 		}
 		return pi;
 
diff --git a/core/object.cpp b/core/object.cpp
index 6bb7973cef..07ac430d7a 100644
--- a/core/object.cpp
+++ b/core/object.cpp
@@ -258,12 +258,15 @@ bool Object::_predelete() {
 	
 	_predelete_ok=1;
 	notification(NOTIFICATION_PREDELETE,true);
+	if (_predelete_ok) {
+		_type_ptr=NULL; //must restore so destructors can access type ptr correctly
+	}
 	return _predelete_ok;
 
 }
 
 void Object::_postinitialize() {
-	
+	_type_ptr=_get_type_namev();
 	_initialize_typev();
 	notification(NOTIFICATION_POSTINITIALIZE);
 	
@@ -1707,7 +1710,7 @@ bool Object::is_edited() const {
 
 Object::Object() {
 	
-
+	_type_ptr=NULL;
 	_block_signals=false;
 	_predelete_ok=0;
 	_instance_ID=0;
diff --git a/core/object.h b/core/object.h
index 9680af924a..eb0e78a8c3 100644
--- a/core/object.h
+++ b/core/object.h
@@ -82,7 +82,8 @@ enum PropertyUsageFlags {
 	PROPERTY_USAGE_BUNDLE=128, //used for optimized bundles
 	PROPERTY_USAGE_CATEGORY=256,
 	PROPERTY_USAGE_STORE_IF_NONZERO=512, //only store if nonzero
-	PROPERTY_USAGE_NO_INSTANCE_STATE=1024,
+	PROPERTY_USAGE_STORE_IF_NONONE=1024, //only store if false
+	PROPERTY_USAGE_NO_INSTANCE_STATE=2048,
 
 	PROPERTY_USAGE_DEFAULT=PROPERTY_USAGE_STORAGE|PROPERTY_USAGE_EDITOR|PROPERTY_USAGE_NETWORK,
 	PROPERTY_USAGE_DEFAULT_INTL=PROPERTY_USAGE_STORAGE|PROPERTY_USAGE_EDITOR|PROPERTY_USAGE_NETWORK|PROPERTY_USAGE_INTERNATIONALIZED,
@@ -97,6 +98,8 @@ enum PropertyUsageFlags {
 #define ADD_PROPERTYI( m_property, m_setter, m_getter, m_index ) ObjectTypeDB::add_property( get_type_static(), m_property, m_setter, m_getter, m_index )
 #define ADD_PROPERTYNZ( m_property, m_setter, m_getter ) ObjectTypeDB::add_property( get_type_static(), (m_property).added_usage(PROPERTY_USAGE_STORE_IF_NONZERO), m_setter, m_getter )
 #define ADD_PROPERTYINZ( m_property, m_setter, m_getter, m_index ) ObjectTypeDB::add_property( get_type_static(), (m_property).added_usage(PROPERTY_USAGE_STORE_IF_NONZERO), m_setter, m_getter, m_index )
+#define ADD_PROPERTYNO( m_property, m_setter, m_getter ) ObjectTypeDB::add_property( get_type_static(), (m_property).added_usage(PROPERTY_USAGE_STORE_IF_NONONE), m_setter, m_getter )
+#define ADD_PROPERTYINO( m_property, m_setter, m_getter, m_index ) ObjectTypeDB::add_property( get_type_static(), (m_property).added_usage(PROPERTY_USAGE_STORE_IF_NONONE), m_setter, m_getter, m_index )
 
 struct PropertyInfo {
 	
@@ -179,10 +182,10 @@ public:\
 virtual String get_type() const { \
 	return String(#m_type);\
 }\
-virtual StringName get_type_name() const { \
+virtual const StringName* _get_type_namev() const { \
 	if (!_type_name)\
 		_type_name=get_type_static();\
-	return _type_name;\
+	return &_type_name;\
 }\
 static _FORCE_INLINE_ void* get_type_ptr_static() { \
 	static int ptr;\
@@ -388,6 +391,8 @@ friend void postinitialize_handler(Object*);
 	ScriptInstance *script_instance;
 	RefPtr script;
 	Dictionary metadata;
+	mutable StringName _type_name;
+	mutable const StringName* _type_ptr;
 
 	void _add_user_signal(const String& p_name, const Array& p_pargs=Array());
 	bool _has_user_signal(const StringName& p_name) const;
@@ -445,7 +450,11 @@ protected:
 	Variant _call_deferred_bind(const Variant** p_args, int p_argcount, Variant::CallError& r_error);
 
 
-
+	virtual const StringName* _get_type_namev() const {
+		if (!_type_name)
+			_type_name=get_type_static();
+		return &_type_name;
+	}
 
 	DVector<String> _get_meta_list_bind() const;
 	Array _get_property_list_bind() const;
@@ -523,11 +532,19 @@ public:
 
 	virtual String get_type() const { return "Object"; }
 	virtual String get_save_type() const { return get_type(); } //type stored when saving
-	virtual StringName get_type_name() const { return StringName("Object"); }
+
+
+
 	virtual bool is_type(const String& p_type) const { return (p_type=="Object"); }
 	virtual bool is_type_ptr(void *p_ptr) const { return get_type_ptr_static()==p_ptr; }
 
-
+	_FORCE_INLINE_ const StringName& get_type_name() const {
+		if (!_type_ptr) {
+			return *_get_type_namev();
+		} else {
+			return *_type_ptr;
+		}
+	}
 	
 	/* IAPI */
 //	void set(const String& p_name, const Variant& p_value);
diff --git a/core/object_type_db.cpp b/core/object_type_db.cpp
index a2cae50940..c291714573 100644
--- a/core/object_type_db.cpp
+++ b/core/object_type_db.cpp
@@ -205,7 +205,7 @@ ObjectTypeDB::TypeInfo::~TypeInfo() {
 }
 
 
-bool ObjectTypeDB::is_type(const String &p_type,const String& p_inherits) {
+bool ObjectTypeDB::is_type(const StringName &p_type,const StringName& p_inherits) {
 	
 	OBJTYPE_LOCK;
 	
@@ -220,7 +220,7 @@ bool ObjectTypeDB::is_type(const String &p_type,const String& p_inherits) {
 	
 	return false;
 }
-void ObjectTypeDB::get_type_list( List<String> *p_types) {
+void ObjectTypeDB::get_type_list( List<StringName> *p_types) {
 	
 	OBJTYPE_LOCK;
 	
@@ -235,7 +235,7 @@ void ObjectTypeDB::get_type_list( List<String> *p_types) {
 }
 
 
-void ObjectTypeDB::get_inheriters_from( const String& p_type,List<String> *p_types) {
+void ObjectTypeDB::get_inheriters_from( const StringName& p_type,List<StringName> *p_types) {
 
 	OBJTYPE_LOCK;
 	
@@ -249,7 +249,7 @@ void ObjectTypeDB::get_inheriters_from( const String& p_type,List<String> *p_typ
 
 }
 
-String ObjectTypeDB::type_inherits_from(const String& p_type) {
+StringName ObjectTypeDB::type_inherits_from(const StringName& p_type) {
 	
 	OBJTYPE_LOCK;
 	
@@ -258,7 +258,7 @@ String ObjectTypeDB::type_inherits_from(const String& p_type) {
 	return ti->inherits;
 }
 
-bool ObjectTypeDB::type_exists(const String &p_type) {
+bool ObjectTypeDB::type_exists(const StringName &p_type) {
 	
 	OBJTYPE_LOCK;
 	return types.has(p_type);	
@@ -269,7 +269,7 @@ void ObjectTypeDB::add_compatibility_type(const StringName& p_type,const StringN
 	compat_types[p_type]=p_fallback;
 }
 
-Object *ObjectTypeDB::instance(const String &p_type) {
+Object *ObjectTypeDB::instance(const StringName &p_type) {
 	
 	TypeInfo *ti;
 	{
@@ -287,7 +287,7 @@ Object *ObjectTypeDB::instance(const String &p_type) {
 
 	return ti->creation_func();
 }
-bool ObjectTypeDB::can_instance(const String &p_type) {
+bool ObjectTypeDB::can_instance(const StringName &p_type) {
 	
 	OBJTYPE_LOCK;
 	
@@ -650,7 +650,13 @@ bool ObjectTypeDB::set_property(Object* p_object,const StringName& p_property, c
 				Variant index=psg->index;
 				const Variant* arg[2]={&index,&p_value};
 				Variant::CallError ce;
-				p_object->call(psg->setter,arg,2,ce);
+//				p_object->call(psg->setter,arg,2,ce);
+				if (psg->_setptr) {
+					psg->_setptr->call(p_object,arg,2,ce);
+				} else {
+					p_object->call(psg->setter,arg,2,ce);
+				}
+
 
 			} else {
 				const Variant* arg[1]={&p_value};
diff --git a/core/object_type_db.h b/core/object_type_db.h
index 27c1506960..caa5baddd5 100644
--- a/core/object_type_db.h
+++ b/core/object_type_db.h
@@ -228,13 +228,13 @@ public:
 		T::register_custom_data_to_otdb();
 	}
 
-	static void get_type_list( List<String> *p_types);
-	static void get_inheriters_from( const String& p_type,List<String> *p_types);
-	static String type_inherits_from(const String& p_type);
-	static bool type_exists(const String &p_type);
-	static bool is_type(const String &p_type,const String& p_inherits);
-	static bool can_instance(const String &p_type);	
-	static Object *instance(const String &p_type);
+	static void get_type_list( List<StringName> *p_types);
+	static void get_inheriters_from( const StringName& p_type,List<StringName> *p_types);
+	static StringName type_inherits_from(const StringName& p_type);
+	static bool type_exists(const StringName &p_type);
+	static bool is_type(const StringName &p_type,const StringName& p_inherits);
+	static bool can_instance(const StringName &p_type);
+	static Object *instance(const StringName &p_type);
 
 #if 0
 	template<class N, class M>
diff --git a/core/script_debugger_local.cpp b/core/script_debugger_local.cpp
index 2266b05f6d..649bbe89f0 100644
--- a/core/script_debugger_local.cpp
+++ b/core/script_debugger_local.cpp
@@ -60,7 +60,7 @@ void ScriptDebuggerLocal::debug(ScriptLanguage *p_script,bool p_can_continue) {
 			if (line.get_slice_count(" ")==1) {
 				print_line("*Frame "+itos(current_frame)+" - "+p_script->debug_get_stack_level_source(current_frame)+":"+itos(p_script->debug_get_stack_level_line(current_frame))+" in function '"+p_script->debug_get_stack_level_function(current_frame)+"'");
 			} else {
-				int frame = line.get_slice(" ",1).to_int();
+				int frame = line.get_slicec(' ',1).to_int();
 				if (frame<0 || frame >=total_frames) {
 					print_line("Error: Invalid frame.");
 				} else {
@@ -108,7 +108,7 @@ void ScriptDebuggerLocal::debug(ScriptLanguage *p_script,bool p_can_continue) {
 				print_line("Usage: print <expre>");
 			} else {
 
-				String expr = line.get_slice(" ",2);
+				String expr = line.get_slicec(' ',2);
 				String res = p_script->debug_parse_stack_level_expression(current_frame,expr);
 				print_line(res);
 			}
@@ -130,9 +130,9 @@ void ScriptDebuggerLocal::debug(ScriptLanguage *p_script,bool p_can_continue) {
 			} else {
 
 
-				String bppos=line.get_slice(" ",1);
-				String source=bppos.get_slice(":",0).strip_edges();
-				int line=bppos.get_slice(":",1).strip_edges().to_int();
+				String bppos=line.get_slicec(' ',1);
+				String source=bppos.get_slicec(':',0).strip_edges();
+				int line=bppos.get_slicec(':',1).strip_edges().to_int();
 
 				source = breakpoint_find_source(source);
 
@@ -147,9 +147,9 @@ void ScriptDebuggerLocal::debug(ScriptLanguage *p_script,bool p_can_continue) {
 				clear_breakpoints();
 			} else {
 
-				String bppos=line.get_slice(" ",1);
-				String source=bppos.get_slice(":",0).strip_edges();
-				int line=bppos.get_slice(":",1).strip_edges().to_int();
+				String bppos=line.get_slicec(' ',1);
+				String source=bppos.get_slicec(':',0).strip_edges();
+				int line=bppos.get_slicec(':',1).strip_edges().to_int();
 
 				source = breakpoint_find_source(source);
 
diff --git a/core/string_db.cpp b/core/string_db.cpp
index 57fdd6e70f..b48d9f37d4 100644
--- a/core/string_db.cpp
+++ b/core/string_db.cpp
@@ -158,7 +158,7 @@ void StringName::operator=(const StringName& p_name) {
 		_data = p_name._data;		
 	}
 }
-
+/* was inlined
 StringName::operator String() const {
 	
 	if (_data)
@@ -166,7 +166,7 @@ StringName::operator String() const {
 	
 	return "";
 }
-
+*/
 StringName::StringName(const StringName& p_name) {
 	
 	ERR_FAIL_COND(!configured);
diff --git a/core/string_db.h b/core/string_db.h
index 912d7513ad..3b3249bf5e 100644
--- a/core/string_db.h
+++ b/core/string_db.h
@@ -114,7 +114,17 @@ public:
 	}
 	bool operator!=(const StringName& p_name) const;
 	
-	operator String() const;
+	_FORCE_INLINE_ operator String() const {
+
+		if (_data) {
+			if (_data->cname )
+				return String(_data->cname);
+			else
+				return _data->name;
+		}
+
+		return String();
+	}
 
 	static StringName search(const char *p_name);
 	static StringName search(const CharType *p_name);
diff --git a/core/ustring.cpp b/core/ustring.cpp
index 5df95ac4c2..945c841568 100644
--- a/core/ustring.cpp
+++ b/core/ustring.cpp
@@ -486,7 +486,7 @@ String String::capitalize() const {
 	String cap;
 	for (int i=0;i<aux.get_slice_count(" ");i++) {
 		
-		String slice=aux.get_slice(" ",i);
+		String slice=aux.get_slicec(' ',i);
 		if (slice.length()>0) {
 		
 			slice[0]=_find_upper(slice[0]);
@@ -577,6 +577,41 @@ String String::get_slice(String p_splitter, int p_slice) const {
 
 }
 
+String String::get_slicec(CharType p_splitter, int p_slice) const {
+
+	if (empty())
+		return String();
+
+	if (p_slice<0)
+		return String();
+
+	const CharType *c=this->ptr();
+	int i=0;
+	int prev=0;
+	int count=0;
+	while(true) {
+
+
+		if (c[i]==0 || c[i]==p_splitter) {
+
+			if (p_slice==count) {
+
+				return substr(prev,i-prev);
+			} else {
+				count++;
+				prev=i+1;
+			}
+
+		}
+
+		i++;
+
+	}
+
+	return String(); //no find!
+
+}
+
 
 Vector<String> String::split_spaces() const {
 
@@ -3333,8 +3368,8 @@ String String::path_to(const String& p_path) const {
 		//nothing
 	} else {
 		//dos style
-		String src_begin=src.get_slice("/",0);
-		String dst_begin=dst.get_slice("/",0);
+		String src_begin=src.get_slicec('/',0);
+		String dst_begin=dst.get_slicec('/',0);
 
 		if (src_begin!=dst_begin)
 			return p_path; //impossible to do this
diff --git a/core/ustring.h b/core/ustring.h
index 53ed319862..1000c1cc8a 100644
--- a/core/ustring.h
+++ b/core/ustring.h
@@ -153,6 +153,7 @@ public:
 
 	int get_slice_count(String p_splitter) const;
 	String get_slice(String p_splitter,int p_slice) const;
+	String get_slicec(CharType splitter,int p_slice) const;
 
 	Vector<String> split(const String &p_splitter,bool p_allow_empty=true) const;
 	Vector<String> split_spaces() const;
diff --git a/core/variant.cpp b/core/variant.cpp
index 034dc2b4fc..e0bceb4dd8 100644
--- a/core/variant.cpp
+++ b/core/variant.cpp
@@ -878,6 +878,63 @@ bool Variant::is_zero() const {
 	return false;
 }
 
+
+bool Variant::is_one() const {
+
+	switch( type ) {
+		case NIL: {
+
+			return true;
+		} break;
+
+		// atomic types
+		case BOOL: {
+
+			return _data._bool==true;
+		} break;
+		case INT: {
+
+			return _data._int==1;
+
+		} break;
+		case REAL: {
+
+			return _data._real==1;
+
+		} break;
+		case VECTOR2: {
+
+			return *reinterpret_cast<const Vector2*>(_data._mem)==Vector2(1,1);
+
+		} break;
+		case RECT2: {
+
+			return *reinterpret_cast<const Rect2*>(_data._mem)==Rect2(1,1,1,1);
+
+		} break;
+		case VECTOR3: {
+
+			return *reinterpret_cast<const Vector3*>(_data._mem)==Vector3(1,1,1);
+
+		} break;
+		case PLANE: {
+
+			return *reinterpret_cast<const Plane*>(_data._mem)==Plane(1,1,1,1);
+
+		} break;
+		case COLOR: {
+
+			return *reinterpret_cast<const Color*>(_data._mem)==Color(1,1,1,1);
+
+		} break;
+
+		default: { return !is_zero(); }
+	}
+
+	return false;
+}
+
+
 void Variant::reference(const Variant& p_variant) {
 
 	
diff --git a/core/variant.h b/core/variant.h
index 5f338ef667..8fd9662c36 100644
--- a/core/variant.h
+++ b/core/variant.h
@@ -185,6 +185,7 @@ public:
 	_FORCE_INLINE_ bool is_array() const { return type>=ARRAY; };
 	bool is_shared() const;
 	bool is_zero() const;
+	bool is_one() const;
 
 	operator bool() const;
 	operator signed int() const;
diff --git a/core/vector.h b/core/vector.h
index b93d9a0dea..d103400622 100644
--- a/core/vector.h
+++ b/core/vector.h
@@ -340,12 +340,14 @@ template<class T>
 void Vector<T>::remove(int p_index) {
 
 	ERR_FAIL_INDEX(p_index, size());
-	for (int i=p_index; i<size()-1; i++) {
+	T*p=ptr();
+	int len=size();
+	for (int i=p_index; i<len-1; i++) {
 
-		set(i, get(i+1));
+		p[i]=p[i+1];
 	};
 
-	resize(size()-1);
+	resize(len-1);
 };
 
 template<class T>