7 files changed, 58 insertions, 7 deletions
diff --git a/core/array.cpp b/core/array.cpp
index 30184a002e..171c11776c 100644
--- a/core/array.cpp
+++ b/core/array.cpp
@@ -233,9 +233,10 @@ struct _ArrayVariantSort {
 	}
 };
 
-void Array::sort() {
+Array &Array::sort() {
 
 	_p->array.sort_custom<_ArrayVariantSort>();
+	return *this;
 }
 
 struct _ArrayVariantSortCustom {
@@ -253,19 +254,21 @@ struct _ArrayVariantSortCustom {
 		return res;
 	}
 };
-void Array::sort_custom(Object *p_obj, const StringName &p_function) {
+Array &Array::sort_custom(Object *p_obj, const StringName &p_function) {
 
-	ERR_FAIL_NULL(p_obj);
+	ERR_FAIL_NULL_V(p_obj, *this);
 
 	SortArray<Variant, _ArrayVariantSortCustom> avs;
 	avs.compare.obj = p_obj;
 	avs.compare.func = p_function;
 	avs.sort(_p->array.ptr(), _p->array.size());
+	return *this;
 }
 
-void Array::invert() {
+Array &Array::invert() {
 
 	_p->array.invert();
+	return *this;
 }
 
 void Array::push_front(const Variant &p_value) {
diff --git a/core/array.h b/core/array.h
index 8a647dd13b..2c29103108 100644
--- a/core/array.h
+++ b/core/array.h
@@ -68,9 +68,9 @@ public:
 	Variant front() const;
 	Variant back() const;
 
-	void sort();
-	void sort_custom(Object *p_obj, const StringName &p_function);
-	void invert();
+	Array &sort();
+	Array &sort_custom(Object *p_obj, const StringName &p_function);
+	Array &invert();
 
 	int find(const Variant &p_value, int p_from = 0) const;
 	int rfind(const Variant &p_value, int p_from = -1) const;
diff --git a/core/class_db.cpp b/core/class_db.cpp
index f5ddd9c761..12310f6151 100644
--- a/core/class_db.cpp
+++ b/core/class_db.cpp
@@ -205,6 +205,7 @@ ClassDB::ClassInfo::ClassInfo() {
 	creation_func = NULL;
 	inherits_ptr = NULL;
 	disabled = false;
+	exposed = false;
 }
 ClassDB::ClassInfo::~ClassInfo() {
 }
@@ -1284,6 +1285,15 @@ bool ClassDB::is_class_enabled(StringName p_class) {
 	return !ti->disabled;
 }
 
+bool ClassDB::is_class_exposed(StringName p_class) {
+
+	OBJTYPE_RLOCK;
+
+	ClassInfo *ti = classes.getptr(p_class);
+	ERR_FAIL_COND_V(!ti, false);
+	return ti->exposed;
+}
+
 StringName ClassDB::get_category(const StringName &p_node) {
 
 	ERR_FAIL_COND_V(!classes.has(p_node), StringName());
diff --git a/core/class_db.h b/core/class_db.h
index f6b97748b0..5910a2ce01 100644
--- a/core/class_db.h
+++ b/core/class_db.h
@@ -127,6 +127,7 @@ public:
 		StringName inherits;
 		StringName name;
 		bool disabled;
+		bool exposed;
 		Object *(*creation_func)();
 		ClassInfo();
 		~ClassInfo();
@@ -168,6 +169,7 @@ public:
 		ClassInfo *t = classes.getptr(T::get_class_static());
 		ERR_FAIL_COND(!t);
 		t->creation_func = &creator<T>;
+		t->exposed = true;
 		T::register_custom_data_to_otdb();
 	}
 
@@ -176,6 +178,9 @@ public:
 
 		GLOBAL_LOCK_FUNCTION;
 		T::initialize_class();
+		ClassInfo *t = classes.getptr(T::get_class_static());
+		ERR_FAIL_COND(!t);
+		t->exposed = true;
 		//nothing
 	}
 
@@ -193,6 +198,7 @@ public:
 		ClassInfo *t = classes.getptr(T::get_class_static());
 		ERR_FAIL_COND(!t);
 		t->creation_func = &_create_ptr_func<T>;
+		t->exposed = true;
 		T::register_custom_data_to_otdb();
 	}
 
@@ -347,6 +353,8 @@ public:
 	static void set_class_enabled(StringName p_class, bool p_enable);
 	static bool is_class_enabled(StringName p_class);
 
+	static bool is_class_exposed(StringName p_class);
+
 	static void add_resource_base_extension(const StringName &p_extension, const StringName &p_class);
 	static void get_resource_base_extensions(List<String> *p_extensions);
 	static void get_extensions_for_type(const StringName &p_class, List<String> *p_extensions);
diff --git a/core/io/logger.cpp b/core/io/logger.cpp
index b94007d316..ad6371f1e1 100644
--- a/core/io/logger.cpp
+++ b/core/io/logger.cpp
@@ -33,6 +33,17 @@
 #include "os/os.h"
 #include "print_string.h"
 
+// va_copy was defined in the C99, but not in C++ standards before C++11.
+// When you compile C++ without --std=c++<XX> option, compilers still define
+// va_copy, otherwise you have to use the internal version (__va_copy).
+#if !defined(va_copy)
+#if defined(__GNUC__)
+#define va_copy(d, s) __va_copy(d, s)
+#else
+#define va_copy(d, s) ((d) = (s))
+#endif
+#endif
+
 bool Logger::should_log(bool p_err) {
 	return (!p_err || _print_error_enabled) && (p_err || _print_line_enabled);
 }
diff --git a/core/os/input.cpp b/core/os/input.cpp
index a4b82299a7..848b003d5e 100644
--- a/core/os/input.cpp
+++ b/core/os/input.cpp
@@ -58,6 +58,7 @@ void Input::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("is_action_just_released", "action"), &Input::is_action_just_released);
 	ClassDB::bind_method(D_METHOD("add_joy_mapping", "mapping", "update_existing"), &Input::add_joy_mapping, DEFVAL(false));
 	ClassDB::bind_method(D_METHOD("remove_joy_mapping", "guid"), &Input::remove_joy_mapping);
+	ClassDB::bind_method(D_METHOD("joy_connection_changed", "device", "connected", "name", "guid"), &Input::joy_connection_changed);
 	ClassDB::bind_method(D_METHOD("is_joy_known", "device"), &Input::is_joy_known);
 	ClassDB::bind_method(D_METHOD("get_joy_axis", "device", "axis"), &Input::get_joy_axis);
 	ClassDB::bind_method(D_METHOD("get_joy_name", "device"), &Input::get_joy_name);
diff --git a/core/register_core_types.cpp b/core/register_core_types.cpp
index 0e34a3eea5..c6d7cd44e8 100644
--- a/core/register_core_types.cpp
+++ b/core/register_core_types.cpp
@@ -40,6 +40,7 @@
 #include "io/config_file.h"
 #include "io/http_client.h"
 #include "io/marshalls.h"
+#include "io/networked_multiplayer_peer.h"
 #include "io/packet_peer.h"
 #include "io/packet_peer_udp.h"
 #include "io/pck_packer.h"
@@ -109,6 +110,8 @@ void register_core_types() {
 
 	ClassDB::register_class<Object>();
 
+	ClassDB::register_virtual_class<Script>();
+
 	ClassDB::register_class<Reference>();
 	ClassDB::register_class<WeakRef>();
 	ClassDB::register_class<Resource>();
@@ -136,6 +139,7 @@ void register_core_types() {
 	ClassDB::register_virtual_class<IP>();
 	ClassDB::register_virtual_class<PacketPeer>();
 	ClassDB::register_class<PacketPeerStream>();
+	ClassDB::register_virtual_class<NetworkedMultiplayerPeer>();
 	ClassDB::register_class<MainLoop>();
 	//ClassDB::register_type<OptimizedSaver>();
 	ClassDB::register_class<Translation>();
@@ -185,6 +189,20 @@ void register_core_settings() {
 
 void register_core_singletons() {
 
+	ClassDB::register_class<ProjectSettings>();
+	ClassDB::register_virtual_class<IP>();
+	ClassDB::register_class<_Geometry>();
+	ClassDB::register_class<_ResourceLoader>();
+	ClassDB::register_class<_ResourceSaver>();
+	ClassDB::register_class<_OS>();
+	ClassDB::register_class<_Engine>();
+	ClassDB::register_class<_ClassDB>();
+	ClassDB::register_class<_Marshalls>();
+	ClassDB::register_class<TranslationServer>();
+	ClassDB::register_virtual_class<Input>();
+	ClassDB::register_class<InputMap>();
+	ClassDB::register_class<_JSON>();
+
 	ProjectSettings::get_singleton()->add_singleton(ProjectSettings::Singleton("ProjectSettings", ProjectSettings::get_singleton()));
 	ProjectSettings::get_singleton()->add_singleton(ProjectSettings::Singleton("IP", IP::get_singleton()));
 	ProjectSettings::get_singleton()->add_singleton(ProjectSettings::Singleton("Geometry", _Geometry::get_singleton()));