Merge branch 'master' of https://github.com/not-surt/godot into snapping2

Conflicts:
	tools/editor/plugins/canvas_item_editor_plugin.cpp
	tools/editor/plugins/canvas_item_editor_plugin.h

17 files changed, 247 insertions, 55 deletions

diff --git a/core/bind/core_bind.cpp b/core/bind/core_bind.cpp
index 8d18acdc23..858f5cec27 100644
--- a/core/bind/core_bind.cpp
+++ b/core/bind/core_bind.cpp
@@ -176,6 +176,76 @@ bool _OS::is_video_mode_fullscreen(int p_screen) const {
 
 }
 
+#ifdef NEW_WM_API
+int _OS::get_screen_count() const {
+	return OS::get_singleton()->get_screen_count();
+}
+
+int _OS::get_screen() const {
+	return OS::get_singleton()->get_screen();
+}
+
+void _OS::set_screen(int p_screen) {
+	OS::get_singleton()->set_screen(p_screen);
+}
+
+Point2 _OS::get_screen_position(int p_screen) const {
+	return OS::get_singleton()->get_screen_position(p_screen);
+}
+
+Size2 _OS::get_screen_size(int p_screen) const {
+	return OS::get_singleton()->get_screen_size(p_screen);
+}
+
+Point2 _OS::get_window_position() const {
+	return OS::get_singleton()->get_window_position();
+}
+
+void _OS::set_window_position(const Point2& p_position) {
+	OS::get_singleton()->set_window_position(p_position);
+}
+
+Size2 _OS::get_window_size() const {
+	return OS::get_singleton()->get_window_size();
+}
+
+void _OS::set_window_size(const Size2& p_size) {
+	OS::get_singleton()->set_window_size(p_size);
+}
+
+void _OS::set_fullscreen(bool p_enabled) {
+	OS::get_singleton()->set_fullscreen(p_enabled);
+}
+
+bool _OS::is_fullscreen() const {
+	return OS::get_singleton()->is_fullscreen();
+}
+
+void _OS::set_resizable(bool p_enabled) {
+	OS::get_singleton()->set_resizable(p_enabled);
+}
+
+bool _OS::is_resizable() const {
+	return OS::get_singleton()->is_resizable();
+}
+
+void _OS::set_minimized(bool p_enabled) {
+	OS::get_singleton()->set_minimized(p_enabled);
+}
+
+bool _OS::is_minimized() const {
+	return OS::get_singleton()->is_minimized();
+}
+
+void _OS::set_maximized(bool p_enabled) {
+	OS::get_singleton()->set_maximized(p_enabled);
+}
+
+bool _OS::is_maximized() const {
+	return OS::get_singleton()->is_maximized();
+}
+#endif
+
 void _OS::set_use_file_access_save_and_swap(bool p_enable) {
 
 	FileAccess::set_backup_save(p_enable);
@@ -186,7 +256,6 @@ bool _OS::is_video_mode_resizable(int p_screen) const {
 	OS::VideoMode vm;
 	vm = OS::get_singleton()->get_video_mode(p_screen);
 	return vm.resizable;
-
 }
 
 Array _OS::get_fullscreen_mode_list(int p_screen) const {
@@ -637,6 +706,26 @@ void _OS::_bind_methods() {
 	ObjectTypeDB::bind_method(_MD("is_video_mode_resizable","screen"),&_OS::is_video_mode_resizable,DEFVAL(0));
 	ObjectTypeDB::bind_method(_MD("get_fullscreen_mode_list","screen"),&_OS::get_fullscreen_mode_list,DEFVAL(0));
 
+#ifdef NEW_WM_API
+	ObjectTypeDB::bind_method(_MD("get_screen_count"),&_OS::get_screen_count);
+	ObjectTypeDB::bind_method(_MD("get_screen"),&_OS::get_screen);
+	ObjectTypeDB::bind_method(_MD("set_screen"),&_OS::set_screen);
+	ObjectTypeDB::bind_method(_MD("get_screen_position"),&_OS::get_screen_position,DEFVAL(0));
+	ObjectTypeDB::bind_method(_MD("get_screen_size"),&_OS::get_screen_size,DEFVAL(0));
+	ObjectTypeDB::bind_method(_MD("get_window_position"),&_OS::get_window_position);
+	ObjectTypeDB::bind_method(_MD("set_window_position"),&_OS::set_window_position);
+	ObjectTypeDB::bind_method(_MD("get_window_size"),&_OS::get_window_size);
+	ObjectTypeDB::bind_method(_MD("set_window_size"),&_OS::set_window_size);
+	ObjectTypeDB::bind_method(_MD("set_fullscreen","enabled"),&_OS::set_fullscreen);
+	ObjectTypeDB::bind_method(_MD("is_fullscreen"),&_OS::is_fullscreen);
+	ObjectTypeDB::bind_method(_MD("set_resizable","enabled"),&_OS::set_resizable);
+	ObjectTypeDB::bind_method(_MD("is_resizable"),&_OS::is_resizable);
+	ObjectTypeDB::bind_method(_MD("set_minimized", "enabled"),&_OS::set_minimized);
+	ObjectTypeDB::bind_method(_MD("is_minimized"),&_OS::is_minimized);
+	ObjectTypeDB::bind_method(_MD("set_maximized", "enabled"),&_OS::set_maximized);
+	ObjectTypeDB::bind_method(_MD("is_maximized"),&_OS::is_maximized);
+#endif
+
 	ObjectTypeDB::bind_method(_MD("set_iterations_per_second","iterations_per_second"),&_OS::set_iterations_per_second);
 	ObjectTypeDB::bind_method(_MD("get_iterations_per_second"),&_OS::get_iterations_per_second);
 	ObjectTypeDB::bind_method(_MD("set_target_fps","target_fps"),&_OS::set_target_fps);
diff --git a/core/bind/core_bind.h b/core/bind/core_bind.h
index 057ad90fe9..1a80e35221 100644
--- a/core/bind/core_bind.h
+++ b/core/bind/core_bind.h
@@ -108,6 +108,26 @@ public:
 	bool is_video_mode_resizable(int p_screen=0) const;
 	Array get_fullscreen_mode_list(int p_screen=0) const;
 
+#ifdef NEW_WM_API
+	virtual int get_screen_count() const;
+	virtual int get_screen() const;
+	virtual void set_screen(int p_screen);
+	virtual Point2 get_screen_position(int p_screen=0) const;
+	virtual Size2 get_screen_size(int p_screen=0) const;
+	virtual Point2 get_window_position() const;
+	virtual void set_window_position(const Point2& p_position);
+	virtual Size2 get_window_size() const;
+	virtual void set_window_size(const Size2& p_size);
+	virtual void set_fullscreen(bool p_enabled);
+	virtual bool is_fullscreen() const;
+	virtual void set_resizable(bool p_enabled);
+	virtual bool is_resizable() const;
+	virtual void set_minimized(bool p_enabled);
+	virtual bool is_minimized() const;
+	virtual void set_maximized(bool p_enabled);
+	virtual bool is_maximized() const;
+#endif
+
 	Error native_video_play(String p_path, float p_volume, String p_audio_track, String p_subtitle_track);
 	bool native_video_is_playing();
 	void native_video_pause();
diff --git a/core/global_constants.cpp b/core/global_constants.cpp
index ae4abc627d..fc48a105db 100644
--- a/core/global_constants.cpp
+++ b/core/global_constants.cpp
@@ -313,6 +313,7 @@ static _GlobalConstant _global_constants[]={
 	BIND_GLOBAL_CONSTANT( KEY_MASK_ALT   ),
 	BIND_GLOBAL_CONSTANT( KEY_MASK_META   ),
 	BIND_GLOBAL_CONSTANT( KEY_MASK_CTRL   ),
+	BIND_GLOBAL_CONSTANT( KEY_MASK_CMD   ),
 	BIND_GLOBAL_CONSTANT( KEY_MASK_KPAD   ),
 	BIND_GLOBAL_CONSTANT( KEY_MASK_GROUP_SWITCH   ),
 
diff --git a/core/io/file_access_pack.cpp b/core/io/file_access_pack.cpp
index 6e03819aac..afbd7e3d46 100644
--- a/core/io/file_access_pack.cpp
+++ b/core/io/file_access_pack.cpp
@@ -362,6 +362,10 @@ bool DirAccessPack::current_is_dir() const{
 
 	return cdir;
 }
+bool DirAccessPack::current_is_hidden() const{
+
+	return false;
+}
 void DirAccessPack::list_dir_end() {
 
 	list_dirs.clear();
diff --git a/core/io/file_access_pack.h b/core/io/file_access_pack.h
index 5fcc79aaf4..2d0cf5b32e 100644
--- a/core/io/file_access_pack.h
+++ b/core/io/file_access_pack.h
@@ -208,6 +208,7 @@ public:
 	virtual bool list_dir_begin();
 	virtual String get_next();
 	virtual bool current_is_dir() const;
+	virtual bool current_is_hidden() const;
 	virtual void list_dir_end();
 
 	virtual int get_drive_count();
diff --git a/core/io/resource_format_binary.cpp b/core/io/resource_format_binary.cpp
index e2371fe24f..ead6984650 100644
--- a/core/io/resource_format_binary.cpp
+++ b/core/io/resource_format_binary.cpp
@@ -1778,6 +1778,11 @@ Error ResourceFormatSaverBinaryInstance::save(const String &p_path,const RES& p_
 	f->store_32(VERSION_MINOR);
 	f->store_32(FORMAT_VERSION);
 
+	if (f->get_error()!=OK && f->get_error()!=ERR_FILE_EOF) {
+		f->close();
+		return ERR_CANT_CREATE;
+	}
+
 	//f->store_32(saved_resources.size()+external_resources.size()); // load steps -not needed
 	save_unicode_string(p_resource->get_type());
 	uint64_t md_at = f->get_pos();
@@ -1910,6 +1915,11 @@ Error ResourceFormatSaverBinaryInstance::save(const String &p_path,const RES& p_
 
 	f->store_buffer((const uint8_t*)"RSRC",4); //magic at end
 
+	if (f->get_error()!=OK && f->get_error()!=ERR_FILE_EOF) {
+		f->close();
+		return ERR_CANT_CREATE;
+	}
+
 	f->close();
 
 
diff --git a/core/io/resource_format_xml.cpp b/core/io/resource_format_xml.cpp
index 75384d4ab6..033b4d5e5a 100644
--- a/core/io/resource_format_xml.cpp
+++ b/core/io/resource_format_xml.cpp
@@ -2592,6 +2592,11 @@ Error ResourceFormatSaverXMLInstance::save(const String &p_path,const RES& p_res
 	}
 
 	exit_tag("resource_file");
+	if (f->get_error()!=OK && f->get_error()!=ERR_FILE_EOF) {
+		f->close();
+		return ERR_CANT_CREATE;
+	}
+
 	f->close();
 	//memdelete(f);
 
diff --git a/core/math/camera_matrix.cpp b/core/math/camera_matrix.cpp
index a60dea7379..fbe5f8c741 100644
--- a/core/math/camera_matrix.cpp
+++ b/core/math/camera_matrix.cpp
@@ -121,7 +121,7 @@ void CameraMatrix::set_orthogonal(float p_size, float p_aspect, float p_znear, f
 
 
 void CameraMatrix::set_frustum(float p_left, float p_right, float p_bottom, float p_top, float p_near, float p_far) {
-
+#if 0
 	///@TODO, give a check to this. I'm not sure if it's working.
 	set_identity();
 
@@ -133,10 +133,27 @@ void CameraMatrix::set_frustum(float p_left, float p_right, float p_bottom, floa
 	matrix[2][3]=-(2*p_far*p_near) / (p_far-p_near);
 	matrix[3][2]=-1;
 	matrix[3][3]=0;
+#else
+	float *te = &matrix[0][0];
+	float x = 2 * p_near / ( p_right - p_left );
+	float y = 2 * p_near / ( p_top - p_bottom );
+
+	float a = ( p_right + p_left ) / ( p_right - p_left );
+	float b = ( p_top + p_bottom ) / ( p_top - p_bottom );
+	float c = - ( p_far + p_near ) / ( p_far - p_near );
+	float d = - 2 * p_far * p_near / ( p_far - p_near );
+
+	te[0] = x;	te[4] = 0;	te[8] = a;	te[12] = 0;
+	te[1] = 0;	te[5] = y;	te[9] = b;	te[13] = 0;
+	te[2] = 0;	te[6] = 0;	te[10] = c;	te[14] = d;
+	te[3] = 0;	te[7] = 0;	te[11] = - 1;	te[15] = 0;
+
+#endif
 
 }
 
 
+
 float CameraMatrix::get_z_far() const {
 	
 	const float * matrix = (const float*)this->matrix;			
diff --git a/core/math/geometry.h b/core/math/geometry.h
index 7e0cc01a22..4ad4db8523 100644
--- a/core/math/geometry.h
+++ b/core/math/geometry.h
@@ -519,9 +519,9 @@ public:
 
 	    bool s_ab = (b.x-a.x)*as_y-(b.y-a.y)*as_x > 0;
 
-	    if((c.x-a.x)*as_y-(c.y-a.y)*as_x > 0 == s_ab) return false;
+	    if(((c.x-a.x)*as_y-(c.y-a.y)*as_x > 0) == s_ab) return false;
 
-	    if((c.x-b.x)*(s.y-b.y)-(c.y-b.y)*(s.x-b.x) > 0 != s_ab) return false;
+	    if(((c.x-b.x)*(s.y-b.y)-(c.y-b.y)*(s.x-b.x) > 0) != s_ab) return false;
 
 	    return true;
 	}
diff --git a/core/object.cpp b/core/object.cpp
index 82144ab4be..2b83f728d1 100644
--- a/core/object.cpp
+++ b/core/object.cpp
@@ -1033,6 +1033,13 @@ void Object::add_user_signal(const MethodInfo& p_signal) {
 	signal_map[p_signal.name]=s;
 }
 
+bool Object::_has_user_signal(const StringName& p_name) const {
+
+	if (!signal_map.has(p_name))
+		return false;
+	return signal_map[p_name].user.name.length()>0;
+}
+
 struct _ObjectSignalDisconnectData {
 
 	StringName signal;
@@ -1431,6 +1438,7 @@ void Object::_bind_methods() {
 //	ObjectTypeDB::bind_method(_MD("call_deferred","method","arg1","arg2","arg3","arg4"),&Object::_call_deferred_bind,DEFVAL(Variant()),DEFVAL(Variant()),DEFVAL(Variant()),DEFVAL(Variant()));
 
 	ObjectTypeDB::bind_method(_MD("add_user_signal","signal","arguments"),&Object::_add_user_signal,DEFVAL(Array()));
+	ObjectTypeDB::bind_method(_MD("has_user_signal","signal"),&Object::_has_user_signal);
 //	ObjectTypeDB::bind_method(_MD("emit_signal","signal","arguments"),&Object::_emit_signal,DEFVAL(Array()));
 
 
diff --git a/core/object.h b/core/object.h
index 97ca50cb1a..eb885f5d20 100644
--- a/core/object.h
+++ b/core/object.h
@@ -386,6 +386,7 @@ friend void postinitialize_handler(Object*);
 	Dictionary metadata;
 
 	void _add_user_signal(const String& p_name, const Array& p_pargs=Array());
+	bool _has_user_signal(const StringName& p_name) const;
 	Variant _emit_signal(const Variant** p_args, int p_argcount, Variant::CallError& r_error);
 	Array _get_signal_list() const;
 	Array _get_signal_connection_list(const String& p_signal) const;
diff --git a/core/os/dir_access.h b/core/os/dir_access.h
index d8672218bd..dc56f2308e 100644
--- a/core/os/dir_access.h
+++ b/core/os/dir_access.h
@@ -78,6 +78,7 @@ public:
 	virtual String get_next(bool* p_is_dir); // compatibility
 	virtual String get_next()=0;
 	virtual bool current_is_dir() const=0;
+	virtual bool current_is_hidden() const=0;
 	
 	virtual void list_dir_end()=0; ///< 
 	
diff --git a/core/os/os.h b/core/os/os.h
index d4deff2f5e..6301bd495f 100644
--- a/core/os/os.h
+++ b/core/os/os.h
@@ -73,7 +73,7 @@ public:
 		bool fullscreen;
 		bool resizable;
 		float get_aspect() const { return (float)width/(float)height; }
-		VideoMode(int p_width=640,int p_height=480,bool p_fullscreen=false, bool p_resizable = true) { width=p_width; height=p_height; fullscreen=p_fullscreen; resizable = p_resizable; }
+		VideoMode(int p_width=640,int p_height=480,bool p_fullscreen=false, bool p_resizable = true) {width=p_width; height=p_height; fullscreen=p_fullscreen; resizable = p_resizable; }
 	};
 protected:
 friend class Main;
@@ -149,7 +149,27 @@ public:
 	virtual void set_video_mode(const VideoMode& p_video_mode,int p_screen=0)=0;
 	virtual VideoMode get_video_mode(int p_screen=0) const=0;
 	virtual void get_fullscreen_mode_list(List<VideoMode> *p_list,int p_screen=0) const=0;
-	
+
+#ifdef NEW_WM_API
+	virtual int get_screen_count() const=0;
+	virtual int get_screen() const=0;
+	virtual void set_screen(int p_screen)=0;
+	virtual Point2 get_screen_position(int p_screen=0) const=0;
+	virtual Size2 get_screen_size(int p_screen=0) const=0;
+	virtual Point2 get_window_position() const=0;
+	virtual void set_window_position(const Point2& p_position)=0;
+	virtual Size2 get_window_size() const=0;
+	virtual void set_window_size(const Size2 p_size)=0;
+	virtual void set_fullscreen(bool p_enabled)=0;
+	virtual bool is_fullscreen() const=0;
+	virtual void set_resizable(bool p_enabled)=0;
+	virtual bool is_resizable() const=0;
+	virtual void set_minimized(bool p_enabled)=0;
+	virtual bool is_minimized() const=0;
+	virtual void set_maximized(bool p_enabled)=0;
+	virtual bool is_maximized() const=0;
+#endif	
+
 	virtual void set_iterations_per_second(int p_ips);
 	virtual int get_iterations_per_second() const;
 
diff --git a/core/ustring.cpp b/core/ustring.cpp
index 476ab3f936..497e8f29ed 100644
--- a/core/ustring.cpp
+++ b/core/ustring.cpp
@@ -482,7 +482,7 @@ void String::erase(int p_pos, int p_chars) {
 
 String String::capitalize() const {
 
-	String aux=this->replace("_"," ").to_lower();
+	String aux=this->camelcase_to_underscore().replace("_"," ").to_lower();
 	String cap;
 	for (int i=0;i<aux.get_slice_count(" ");i++) {
 		
@@ -498,6 +498,29 @@ String String::capitalize() const {
 	
 	return cap;
 }
+
+
+String String::camelcase_to_underscore() const {
+	const CharType * cstr = c_str();
+	String newString;
+	const char A = 'A', Z = 'Z';
+	int startIndex = 0;
+
+	for ( int i = 1; i < this->size()-1; i++ ) {
+		bool isCapital = cstr[i] >= A && cstr[i] <= Z;
+
+		if ( isCapital ) {
+			newString += "_" + this->substr(startIndex, i-startIndex);
+			startIndex = i;
+		}
+	}
+
+	newString += "_" + this->substr(startIndex, this->size()-startIndex);
+
+	return newString;
+}
+
+
 int String::get_slice_count(String p_splitter) const{
 
 	if (empty())
@@ -3550,8 +3573,8 @@ String String::lpad(int min_length, const String& character) const {
 // sprintf is implemented in GDScript via:
 //   "fish %s pie" % "frog"
 //   "fish %s %d pie" % ["frog", 12]
-String String::sprintf(const Array& values) const {
-
+// In case of an error, the string returned is the error description and "error" is true.
+String String::sprintf(const Array& values, bool* error) const {
 	String formatted;
 	CharType* self = (CharType*)c_str();
 	int num_items = values.size();
@@ -3564,6 +3587,7 @@ String String::sprintf(const Array& values) const {
 	bool left_justified;
 	bool show_sign;
 
+	*error = true;
 
 	for (; *self; self++) {
 		const CharType c = *self;
@@ -3580,13 +3604,11 @@ String String::sprintf(const Array& values) const {
 				case 'x': // Hexadecimal (lowercase)
 				case 'X': { // Hexadecimal (uppercase)
 					if (value_index >= values.size()) {
-						ERR_EXPLAIN("not enough arguments for format string");
-						ERR_FAIL_V("");
+						return "not enough arguments for format string";
 					}
 
 					if (!values[value_index].is_num()) {
-						ERR_EXPLAIN("a number is required");
-						ERR_FAIL_V("");
+						return "a number is required";
 					}
 					
 					int64_t value = values[value_index];
@@ -3622,13 +3644,11 @@ String String::sprintf(const Array& values) const {
 				}
 				case 'f': { // Float
 					if (value_index >= values.size()) {
-						ERR_EXPLAIN("not enough arguments for format string");
-						ERR_FAIL_V("");
+						return "not enough arguments for format string";
 					}
 
 					if (!values[value_index].is_num()) {
-						ERR_EXPLAIN("a number is required");
-						ERR_FAIL_V("");
+						return "a number is required";
 					}
 
 					double value = values[value_index];
@@ -3657,8 +3677,7 @@ String String::sprintf(const Array& values) const {
 				}
 				case 's': { // String
 					if (value_index >= values.size()) {
-						ERR_EXPLAIN("not enough arguments for format string");
-						ERR_FAIL_V("");
+						return "not enough arguments for format string";
 					}
 
 					String str = values[value_index];
@@ -3676,8 +3695,7 @@ String String::sprintf(const Array& values) const {
 				}
 				case 'c': {
 					if (value_index >= values.size()) {
-						ERR_EXPLAIN("not enough arguments for format string");
-						ERR_FAIL_V("");
+						return "not enough arguments for format string";
 					}
 
 					// Convert to character.
@@ -3685,22 +3703,18 @@ String String::sprintf(const Array& values) const {
 					if (values[value_index].is_num()) {
 						int value = values[value_index];
 						if (value < 0) {
-							ERR_EXPLAIN("unsigned byte integer is lower than maximum")
-							ERR_FAIL_V("");
+							return "unsigned byte integer is lower than maximum";
 						} else if (value > 255) {
-							ERR_EXPLAIN("unsigned byte integer is greater than maximum")
-							ERR_FAIL_V("");
+							return "unsigned byte integer is greater than maximum";
 						}
 						str = chr(values[value_index]);
 					} else if (values[value_index].get_type() == Variant::STRING) {
 						str = values[value_index];
 						if (str.length() != 1) {
-							ERR_EXPLAIN("%c requires number or single-character string");
-							ERR_FAIL_V("");
+							return "%c requires number or single-character string";
 						}
 					} else {
-						ERR_EXPLAIN("%c requires number or single-character string");
-						ERR_FAIL_V("");
+						return "%c requires number or single-character string";
 					}
 
 					// Padding.
@@ -3741,8 +3755,7 @@ String String::sprintf(const Array& values) const {
 				}
 				case '.': { // Float separtor.
 					if (in_decimals) {
-						ERR_EXPLAIN("too many decimal points in format");
-						ERR_FAIL_V("");
+						return "too many decimal points in format";
 					}
 					in_decimals = true;
 					min_decimals = 0; // We want to add the value manually.
@@ -3751,13 +3764,11 @@ String String::sprintf(const Array& values) const {
 
 				case '*': { // Dyanmic width, based on value.
 					if (value_index >= values.size()) {
-						ERR_EXPLAIN("not enough arguments for format string");
-						ERR_FAIL_V("");
+						return "not enough arguments for format string";
 					}
 
 					if (!values[value_index].is_num()) {
-						ERR_EXPLAIN("* wants number");
-						ERR_FAIL_V("");
+						return "* wants number";
 					}
 
 					int size = values[value_index];
@@ -3773,8 +3784,7 @@ String String::sprintf(const Array& values) const {
 				}
 
 				default: {
-					ERR_EXPLAIN("unsupported format character");
-  					ERR_FAIL_V("");
+					return "unsupported format character";
   				}
 			}
 		} else { // Not in format string.
@@ -3796,14 +3806,13 @@ String String::sprintf(const Array& values) const {
 	}
 
 	if (in_format) {
-		ERR_EXPLAIN("incomplete format");
-  		ERR_FAIL_V("");
+		return "incomplete format";
 	}
 
 	if (value_index != values.size()) {
-		ERR_EXPLAIN("not all arguments converted during string formatting");
-  		ERR_FAIL_V("");
+		return "not all arguments converted during string formatting";
 	}
 
+	*error = false;
 	return formatted;
 }
diff --git a/core/ustring.h b/core/ustring.h
index af5ffb7c35..f79e5ce306 100644
--- a/core/ustring.h
+++ b/core/ustring.h
@@ -130,7 +130,7 @@ public:
 	String pad_zeros(int p_digits) const;
 	String lpad(int min_length,const String& character=" ") const;
 	String rpad(int min_length,const String& character=" ") const;
-	String sprintf(const Array& values) const;
+	String sprintf(const Array& values, bool* error) const;
 	static String num(double p_num,int p_decimals=-1);
 	static String num_scientific(double p_num);
 	static String num_real(double p_num);
@@ -149,6 +149,7 @@ public:
 	static double to_double(const CharType* p_str, const CharType **r_end=NULL);
 	static int64_t to_int(const CharType* p_str,int p_len=-1);
 	String capitalize() const;
+	String camelcase_to_underscore() const;
 
 	int get_slice_count(String p_splitter) const;
 	String get_slice(String p_splitter,int p_slice) const;
@@ -225,8 +226,6 @@ public:
 	String(const char *p_str);
 	String(const CharType *p_str,int p_clip_to_len=-1);
 	String(const StrRange& p_range);
-
-
 };
 
 
diff --git a/core/variant_call.cpp b/core/variant_call.cpp
index 50a60390e5..c6b498ff28 100644
--- a/core/variant_call.cpp
+++ b/core/variant_call.cpp
@@ -511,7 +511,7 @@ static void _call_##m_type##_##m_method(Variant& r_ret,Variant& p_self,const Var
 	VCALL_LOCALMEM1(ColorArray,append_array);
 
 #define VCALL_PTR0(m_type,m_method)\
-static void _call_##m_type##m_method(Variant& r_ret,Variant& p_self,const Variant** p_args) { reinterpret_cast<m_type*>(p_self._data._ptr)->m_method(); }
+static void _call_##m_type##_##m_method(Variant& r_ret,Variant& p_self,const Variant** p_args) { reinterpret_cast<m_type*>(p_self._data._ptr)->m_method(); }
 #define VCALL_PTR0R(m_type,m_method)\
 static void _call_##m_type##_##m_method(Variant& r_ret,Variant& p_self,const Variant** p_args) { r_ret=reinterpret_cast<m_type*>(p_self._data._ptr)->m_method(); }
 #define VCALL_PTR1(m_type,m_method)\
@@ -519,7 +519,7 @@ static void _call_##m_type##_##m_method(Variant& r_ret,Variant& p_self,const Var
 #define VCALL_PTR1R(m_type,m_method)\
 static void _call_##m_type##_##m_method(Variant& r_ret,Variant& p_self,const Variant** p_args) { r_ret=reinterpret_cast<m_type*>(p_self._data._ptr)->m_method(*p_args[0]); }
 #define VCALL_PTR2(m_type,m_method)\
-static void _call_##m_type##m_method(Variant& r_ret,Variant& p_self,const Variant** p_args) { reinterpret_cast<m_type*>(p_self._data._ptr)->m_method(*p_args[0],*p_args[1]); }
+static void _call_##m_type##_##m_method(Variant& r_ret,Variant& p_self,const Variant** p_args) { reinterpret_cast<m_type*>(p_self._data._ptr)->m_method(*p_args[0],*p_args[1]); }
 #define VCALL_PTR2R(m_type,m_method)\
 static void _call_##m_type##_##m_method(Variant& r_ret,Variant& p_self,const Variant** p_args) { r_ret=reinterpret_cast<m_type*>(p_self._data._ptr)->m_method(*p_args[0],*p_args[1]); }
 #define VCALL_PTR3(m_type,m_method)\
@@ -531,7 +531,7 @@ static void _call_##m_type##_##m_method(Variant& r_ret,Variant& p_self,const Var
 #define VCALL_PTR4R(m_type,m_method)\
 static void _call_##m_type##_##m_method(Variant& r_ret,Variant& p_self,const Variant** p_args) { r_ret=reinterpret_cast<m_type*>(p_self._data._ptr)->m_method(*p_args[0],*p_args[1],*p_args[2],*p_args[3]); }
 #define VCALL_PTR5(m_type,m_method)\
-static void _call_##m_type##m_method(Variant& r_ret,Variant& p_self,const Variant** p_args) { reinterpret_cast<m_type*>(p_self._data._ptr)->m_method(*p_args[0],*p_args[1],*p_args[2],*p_args[3],*p_args[4]); }
+static void _call_##m_type##_##m_method(Variant& r_ret,Variant& p_self,const Variant** p_args) { reinterpret_cast<m_type*>(p_self._data._ptr)->m_method(*p_args[0],*p_args[1],*p_args[2],*p_args[3],*p_args[4]); }
 #define VCALL_PTR5R(m_type,m_method)\
 static void _call_##m_type##_##m_method(Variant& r_ret,Variant& p_self,const Variant** p_args) { r_ret=reinterpret_cast<m_type*>(p_self._data._ptr)->m_method(*p_args[0],*p_args[1],*p_args[2],*p_args[3],*p_args[4]); }
 
@@ -685,7 +685,7 @@ static void _call_##m_type##_##m_method(Variant& r_ret,Variant& p_self,const Var
 	VCALL_PTR0R( InputEvent, is_pressed );
 	VCALL_PTR1R( InputEvent, is_action );
 	VCALL_PTR0R( InputEvent, is_echo );
-	//VCALL_PTR2( InputEvent, set_as_action );
+    VCALL_PTR2( InputEvent, set_as_action );
 
 	struct ConstructData {
 
@@ -1496,7 +1496,7 @@ _VariantCall::addfunc(Variant::m_vtype,Variant::m_ret,_SCS(#m_method),VCALL(m_cl
 	ADDFUNC0(INPUT_EVENT,BOOL,InputEvent,is_pressed,varray());
 	ADDFUNC1(INPUT_EVENT,BOOL,InputEvent,is_action,STRING,"action",varray());
 	ADDFUNC0(INPUT_EVENT,BOOL,InputEvent,is_echo,varray());
-	//ADDFUNC2(INPUT_EVENT,NIL,InputEvent,set_as_action,STRING,"action",BOOL,"pressed",varray());
+    ADDFUNC2(INPUT_EVENT,NIL,InputEvent,set_as_action,STRING,"action",BOOL,"pressed",varray());
 
 	/* REGISTER CONSTRUCTORS */
 
diff --git a/core/variant_op.cpp b/core/variant_op.cpp
index 21bbc8c7ee..87d9738b06 100644
--- a/core/variant_op.cpp
+++ b/core/variant_op.cpp
@@ -552,6 +552,9 @@ void Variant::evaluate(const Operator& p_op, const Variant& p_a, const Variant&
 					if (p_b.type==MATRIX32) {
 						_RETURN( *p_a._data._matrix32 * *p_b._data._matrix32 );
 					};
+					if (p_b.type==VECTOR2) {
+						_RETURN( p_a._data._matrix32->xform( *(const Vector2*)p_b._data._mem) );
+					};
 					r_valid=false;
 					return;
 				} break;
@@ -738,18 +741,22 @@ void Variant::evaluate(const Operator& p_op, const Variant& p_a, const Variant&
 				_RETURN( p_a._data._int % p_b._data._int );
 				
 			} else if (p_a.type==STRING) {
-				const String *str=reinterpret_cast<const String*>(p_a._data._mem);
+				const String* format=reinterpret_cast<const String*>(p_a._data._mem);
 
+				String result;
+				bool error;
 				if (p_b.type==ARRAY) {
 					// e.g. "frog %s %d" % ["fish", 12]
-					const Array *arr=reinterpret_cast<const Array*>(p_b._data._mem);
-					_RETURN(str->sprintf(*arr));
+					const Array* args=reinterpret_cast<const Array*>(p_b._data._mem);
+					result=format->sprintf(*args, &error);
 				} else {
 					// e.g. "frog %d" % 12
-					Array arr;
-					arr.push_back(p_b);
-					_RETURN(str->sprintf(arr));
+					Array args;
+					args.push_back(p_b);
+					result=format->sprintf(args, &error);
 				}
+				r_valid = !error;
+				_RETURN(result);
 			}
 
 			r_valid=false;