Created new Engine singleton, and moved engine related OS functions to it.

core/bind/core_bind.cpp

@@ -340,24 +340,6 @@ Array _OS::get_fullscreen_mode_list(int p_screen) const {
 	return vmarr;
 }
 
-void _OS::set_iterations_per_second(int p_ips) {
-
-	OS::get_singleton()->set_iterations_per_second(p_ips);
-}
-int _OS::get_iterations_per_second() const {
-
-	return OS::get_singleton()->get_iterations_per_second();
-
-}
-
-void _OS::set_target_fps(int p_fps) {
-	OS::get_singleton()->set_target_fps(p_fps);
-}
-
-float _OS::get_target_fps() const {
-	return OS::get_singleton()->get_target_fps();
-}
-
 void _OS::set_low_processor_usage_mode(bool p_enabled) {
 
 	OS::get_singleton()->set_low_processor_usage_mode(p_enabled);
@@ -452,19 +434,7 @@ String _OS::get_model_name() const {
     return OS::get_singleton()->get_model_name();
 }
 
-MainLoop *_OS::get_main_loop() const {
 
-	return OS::get_singleton()->get_main_loop();
-}
-
-void _OS::set_time_scale(float p_scale) {
-	OS::get_singleton()->set_time_scale(p_scale);
-}
-
-float _OS::get_time_scale() {
-
-	return OS::get_singleton()->get_time_scale();
-}
 
 bool _OS::is_ok_left_and_cancel_right() const {
 
@@ -804,10 +774,6 @@ bool _OS::can_draw() const {
 	return OS::get_singleton()->can_draw();
 }
 
-int  _OS::get_frames_drawn() {
-
-	return OS::get_singleton()->get_frames_drawn();
-}
 
 int _OS::get_processor_count() const {
 
@@ -936,11 +902,6 @@ String _OS::get_data_dir() const {
 	return OS::get_singleton()->get_data_dir();
 };
 
-float _OS::get_frames_per_second() const {
-
-	return OS::get_singleton()->get_frames_per_second();
-}
-
 Error _OS::native_video_play(String p_path, float p_volume, String p_audio_track, String p_subtitle_track) {
 
 	return OS::get_singleton()->native_video_play(p_path, p_volume, p_audio_track, p_subtitle_track);
@@ -1005,10 +966,7 @@ String _OS::get_system_dir(SystemDir p_dir) const {
 	return OS::get_singleton()->get_system_dir(OS::SystemDir(p_dir));
 }
 
-String _OS::get_custom_level() const {
 
-	return OS::get_singleton()->get_custom_level();
-}
 
 String _OS::get_scancode_string(uint32_t p_code) const {
 
@@ -1079,13 +1037,6 @@ void _OS::_bind_methods() {
 	ClassDB::bind_method(_MD("set_keep_screen_on","enabled"),&_OS::set_keep_screen_on);
 	ClassDB::bind_method(_MD("is_keep_screen_on"),&_OS::is_keep_screen_on);
 
-	ClassDB::bind_method(_MD("set_iterations_per_second","iterations_per_second"),&_OS::set_iterations_per_second);
-	ClassDB::bind_method(_MD("get_iterations_per_second"),&_OS::get_iterations_per_second);
-	ClassDB::bind_method(_MD("set_target_fps","target_fps"),&_OS::set_target_fps);
-	ClassDB::bind_method(_MD("get_target_fps"),&_OS::get_target_fps);
-
-	ClassDB::bind_method(_MD("set_time_scale","time_scale"),&_OS::set_time_scale);
-	ClassDB::bind_method(_MD("get_time_scale"),&_OS::get_time_scale);
 
 	ClassDB::bind_method(_MD("has_touchscreen_ui_hint"),&_OS::has_touchscreen_ui_hint);
 
@@ -1107,7 +1058,6 @@ void _OS::_bind_methods() {
 
 	ClassDB::bind_method(_MD("get_name"),&_OS::get_name);
 	ClassDB::bind_method(_MD("get_cmdline_args"),&_OS::get_cmdline_args);
-	ClassDB::bind_method(_MD("get_main_loop"),&_OS::get_main_loop);
 
 	ClassDB::bind_method(_MD("get_datetime","utc"),&_OS::get_datetime,DEFVAL(false));
 	ClassDB::bind_method(_MD("get_date","utc"),&_OS::get_date,DEFVAL(false));
@@ -1133,10 +1083,8 @@ void _OS::_bind_methods() {
 	ClassDB::bind_method(_MD("get_latin_keyboard_variant"),&_OS::get_latin_keyboard_variant);
 	ClassDB::bind_method(_MD("get_model_name"),&_OS::get_model_name);
 
-	ClassDB::bind_method(_MD("get_custom_level"),&_OS::get_custom_level);
 
 	ClassDB::bind_method(_MD("can_draw"),&_OS::can_draw);
-	ClassDB::bind_method(_MD("get_frames_drawn"),&_OS::get_frames_drawn);
 	ClassDB::bind_method(_MD("is_stdout_verbose"),&_OS::is_stdout_verbose);
 
 	ClassDB::bind_method(_MD("can_use_threads"),&_OS::can_use_threads);
@@ -1163,7 +1111,6 @@ void _OS::_bind_methods() {
 
 	ClassDB::bind_method(_MD("is_ok_left_and_cancel_right"),&_OS::is_ok_left_and_cancel_right);
 
-	ClassDB::bind_method(_MD("get_frames_per_second"),&_OS::get_frames_per_second);
 
 	ClassDB::bind_method(_MD("print_all_textures_by_size"),&_OS::print_all_textures_by_size);
 	ClassDB::bind_method(_MD("print_resources_by_type","types"),&_OS::print_resources_by_type);
@@ -2596,3 +2543,128 @@ _ClassDB::~_ClassDB(){
 
 
 }
+///////////////////////////////
+
+
+void _Engine::set_iterations_per_second(int p_ips) {
+
+	Engine::get_singleton()->set_iterations_per_second(p_ips);
+}
+int _Engine::get_iterations_per_second() const {
+
+	return Engine::get_singleton()->get_iterations_per_second();
+
+}
+
+void _Engine::set_target_fps(int p_fps) {
+	Engine::get_singleton()->set_target_fps(p_fps);
+}
+
+float _Engine::get_target_fps() const {
+	return Engine::get_singleton()->get_target_fps();
+}
+
+
+
+float _Engine::get_frames_per_second() const {
+
+	return Engine::get_singleton()->get_frames_per_second();
+}
+
+String _Engine::get_custom_level() const {
+
+	return Engine::get_singleton()->get_custom_level();
+}
+
+void _Engine::set_time_scale(float p_scale) {
+	Engine::get_singleton()->set_time_scale(p_scale);
+}
+
+float _Engine::get_time_scale() {
+
+	return Engine::get_singleton()->get_time_scale();
+}
+
+int  _Engine::get_frames_drawn() {
+
+	return Engine::get_singleton()->get_frames_drawn();
+}
+
+MainLoop *_Engine::get_main_loop() const {
+
+	//needs to remain in OS, since it's actually OS that interacts with it, but it's better exposed here
+	return OS::get_singleton()->get_main_loop();
+}
+
+String _Engine::get_version() const {
+
+	return Engine::get_singleton()->get_version();
+}
+String _Engine::get_version_name() const{
+
+	return Engine::get_singleton()->get_version_name();
+}
+String _Engine::get_version_short_name() const{
+
+	return Engine::get_singleton()->get_version_short_name();
+}
+int _Engine::get_version_major() const{
+
+	return Engine::get_singleton()->get_version_major();
+
+}
+int _Engine::get_version_minor() const{
+
+	return Engine::get_singleton()->get_version_minor();
+
+}
+String _Engine::get_version_revision() const{
+
+	return Engine::get_singleton()->get_version_revision();
+
+}
+String _Engine::get_version_status() const{
+
+	return Engine::get_singleton()->get_version_status();
+
+}
+int _Engine::get_version_year() const{
+
+	return Engine::get_singleton()->get_version_year();
+
+}
+
+
+void _Engine::_bind_methods() {
+
+	ClassDB::bind_method(_MD("set_iterations_per_second","iterations_per_second"),&_Engine::set_iterations_per_second);
+	ClassDB::bind_method(_MD("get_iterations_per_second"),&_Engine::get_iterations_per_second);
+	ClassDB::bind_method(_MD("set_target_fps","target_fps"),&_Engine::set_target_fps);
+	ClassDB::bind_method(_MD("get_target_fps"),&_Engine::get_target_fps);
+
+	ClassDB::bind_method(_MD("set_time_scale","time_scale"),&_Engine::set_time_scale);
+	ClassDB::bind_method(_MD("get_time_scale"),&_Engine::get_time_scale);
+
+	ClassDB::bind_method(_MD("get_custom_level"),&_Engine::get_custom_level);
+
+	ClassDB::bind_method(_MD("get_frames_drawn"),&_Engine::get_frames_drawn);
+	ClassDB::bind_method(_MD("get_frames_per_second"),&_Engine::get_frames_per_second);
+
+	ClassDB::bind_method(_MD("get_main_loop:MainLoop"),&_Engine::get_main_loop);
+
+	ClassDB::bind_method(_MD("get_version"),&_Engine::get_version);
+	ClassDB::bind_method(_MD("get_version_name"),&_Engine::get_version_name);
+	ClassDB::bind_method(_MD("get_version_short_name"),&_Engine::get_version_short_name);
+	ClassDB::bind_method(_MD("get_version_major"),&_Engine::get_version_major);
+	ClassDB::bind_method(_MD("get_version_minor"),&_Engine::get_version_minor);
+	ClassDB::bind_method(_MD("get_version_revision"),&_Engine::get_version_revision);
+	ClassDB::bind_method(_MD("get_version_status"),&_Engine::get_version_status);
+	ClassDB::bind_method(_MD("get_version_year"),&_Engine::get_version_year);
+
+}
+
+_Engine *_Engine::singleton = NULL;
+
+_Engine::_Engine() {
+	singleton=this;
+}

core/bind/core_bind.h

@@ -169,12 +169,6 @@ public:
 	void native_video_unpause();
 	void native_video_stop();
 
-	void set_iterations_per_second(int p_ips);
-	int get_iterations_per_second() const;
-
-	void set_target_fps(int p_fps);
-	float get_target_fps() const;
-
 	void set_low_processor_usage_mode(bool p_enabled);
 	bool is_in_low_processor_usage_mode() const;
 
@@ -196,11 +190,7 @@ public:
 	String get_latin_keyboard_variant() const;
 
 	String get_model_name() const;
-	MainLoop *get_main_loop() const;
 
-	String get_custom_level() const;
-
-	float get_frames_per_second() const;
 
 	void dump_memory_to_file(const String& p_file);
 	void dump_resources_to_file(const String& p_file);
@@ -271,8 +261,6 @@ public:
 
 	bool can_draw() const;
 
-	int  get_frames_drawn();
-
 	bool is_stdout_verbose() const;
 
 	int get_processor_count() const;
@@ -313,8 +301,6 @@ public:
 	void set_keep_screen_on(bool p_enabled);
 	bool is_keep_screen_on() const;
 
-	void set_time_scale(float p_scale);
-	float get_time_scale();
 
 	bool is_ok_left_and_cancel_right() const;
 
@@ -632,4 +618,47 @@ public:
 	~_ClassDB();
 };
 
+
+class _Engine : public Object  {
+	GDCLASS(_Engine,Object);
+
+protected:
+
+	static void _bind_methods();
+	static _Engine *singleton;
+
+public:
+
+	static _Engine* get_singleton() { return singleton; }
+	void set_iterations_per_second(int p_ips);
+	int get_iterations_per_second() const;
+
+	void set_target_fps(int p_fps);
+	float get_target_fps() const;
+
+	float get_frames_per_second() const;
+
+	int  get_frames_drawn();
+
+	void set_time_scale(float p_scale);
+	float get_time_scale();
+
+	String get_custom_level() const;
+
+	MainLoop *get_main_loop() const;
+
+	String get_version() const;
+	String get_version_name() const;
+	String get_version_short_name() const;
+	int get_version_major() const;
+	int get_version_minor() const;
+	String get_version_revision() const;
+	String get_version_status() const;
+	int get_version_year() const;
+
+
+	_Engine();
+};
+
+
 #endif // CORE_BIND_H

core/engine.cpp

@@ -0,0 +1,102 @@
+#include "engine.h"
+#include "version.h"
+
+void Engine::set_iterations_per_second(int p_ips) {
+
+	ips=p_ips;
+}
+int Engine::get_iterations_per_second() const {
+
+	return ips;
+}
+
+void Engine::set_target_fps(int p_fps) {
+	_target_fps=p_fps>0? p_fps : 0;
+}
+
+float Engine::get_target_fps() const {
+	return _target_fps;
+}
+
+uint64_t Engine::get_frames_drawn() {
+
+	return frames_drawn;
+}
+
+void Engine::set_frame_delay(uint32_t p_msec) {
+
+	_frame_delay=p_msec;
+}
+
+uint32_t Engine::get_frame_delay() const {
+
+	return _frame_delay;
+}
+
+void Engine::set_time_scale(float p_scale) {
+
+	_time_scale=p_scale;
+}
+
+float Engine::get_time_scale() const {
+
+	return _time_scale;
+}
+
+
+String Engine::get_version() const {
+
+	return VERSION_FULL_NAME;
+}
+String Engine::get_version_name() const{
+
+	return _MKSTR(VERSION_NAME);
+}
+String Engine::get_version_short_name() const{
+
+	return _MKSTR(VERSION_SHORT_NAME);
+
+}
+int Engine::get_version_major() const{
+
+	return VERSION_MAJOR;
+}
+int Engine::get_version_minor() const{
+
+	return VERSION_MINOR;
+}
+String Engine::get_version_revision() const{
+
+	return _MKSTR(VERSION_REVISION);
+}
+String Engine::get_version_status() const{
+
+	return _MKSTR(VERSION_STATUS);
+}
+int Engine::get_version_year() const{
+
+	return VERSION_YEAR;
+}
+
+
+Engine *Engine::singleton=NULL;
+
+Engine *Engine::get_singleton() {
+	return singleton;
+}
+
+Engine::Engine()
+{
+
+	singleton=this;
+	frames_drawn=0;
+	ips=60;
+	_frame_delay=0;
+	_fps=1;
+	_target_fps=0;
+	_time_scale=1.0;
+	_pixel_snap=false;
+	_fixed_frames=0;
+	_idle_frames=0;
+	_in_fixed=false;
+}

core/engine.h

@@ -0,0 +1,67 @@
+#ifndef ENGINE_H
+#define ENGINE_H
+
+#include "ustring.h"
+#include "list.h"
+#include "vector.h"
+#include "os/main_loop.h"
+
+class Engine {
+
+friend class Main;
+
+	String _custom_level;
+	uint64_t frames_drawn;
+	uint32_t _frame_delay;
+
+	int ips;
+	float _fps;
+	int _target_fps;
+	float _time_scale;
+	bool _pixel_snap;
+	uint64_t _fixed_frames;
+	uint64_t _idle_frames;
+	bool _in_fixed;
+
+	static Engine *singleton;
+public:
+
+	static Engine *get_singleton();
+
+	virtual void set_iterations_per_second(int p_ips);
+	virtual int get_iterations_per_second() const;
+
+	virtual void set_target_fps(int p_fps);
+	virtual float get_target_fps() const;
+
+	virtual float get_frames_per_second() const { return _fps; }
+
+	String get_custom_level() const { return _custom_level; }
+
+	uint64_t get_frames_drawn();
+
+	uint64_t get_fixed_frames() const { return _fixed_frames; }
+	uint64_t get_idle_frames() const { return _idle_frames; }
+	bool is_in_fixed_frame() const { return _in_fixed; }
+
+	void set_time_scale(float p_scale);
+	float get_time_scale() const;
+
+	void set_frame_delay(uint32_t p_msec);
+	uint32_t get_frame_delay() const;
+
+	_FORCE_INLINE_ bool get_use_pixel_snap() const { return _pixel_snap; }
+
+	String get_version() const;
+	String get_version_name() const;
+	String get_version_short_name() const;
+	int get_version_major() const;
+	int get_version_minor() const;
+	String get_version_revision() const;
+	String get_version_status() const;
+	int get_version_year() const;
+
+	Engine();
+};
+
+#endif // ENGINE_H

core/os/os.cpp

@@ -98,23 +98,6 @@ void OS::printerr(const char* p_format, ...) {
 };
 
 
-void OS::set_iterations_per_second(int p_ips) {
-
-	ips=p_ips;
-}
-int OS::get_iterations_per_second() const {
-
-	return ips;
-}
-
-void OS::set_target_fps(int p_fps) {
-	_target_fps=p_fps>0? p_fps : 0;
-}
-
-float OS::get_target_fps() const {
-	return _target_fps;
-}
-
 void OS::set_keep_screen_on(bool p_enabled) {
 	_keep_screen_on=p_enabled;
 }
@@ -152,10 +135,6 @@ int OS::get_process_ID() const {
 	return -1;
 };
 
-uint64_t OS::get_frames_drawn() {
-
-	return frames_drawn;
-}
 
 bool OS::is_stdout_verbose() const {
 
@@ -261,15 +240,7 @@ void OS::clear_last_error() {
 		memfree(last_error);
 	last_error=NULL;
 }
-void OS::set_frame_delay(uint32_t p_msec) {
 
-	_frame_delay=p_msec;
-}
-
-uint32_t OS::get_frame_delay() const {
-
-	return _frame_delay;
-}
 
 void OS::set_no_window_mode(bool p_enable) {
 
@@ -513,20 +484,13 @@ OS::MouseMode OS::get_mouse_mode() const{
 	return MOUSE_MODE_VISIBLE;
 }
 
-void OS::set_time_scale(float p_scale) {
-
-	_time_scale=p_scale;
-}
 
 OS::LatinKeyboardVariant OS::get_latin_keyboard_variant() const {
 
 	return LATIN_KEYBOARD_QWERTY;
 }
 
-float OS::get_time_scale() const {
 
-	return _time_scale;
-}
 
 bool OS::is_joy_known(int p_device) {
 	return true;
@@ -572,25 +536,18 @@ Dictionary OS::get_engine_version() const {
 
 OS::OS() {
 	last_error=NULL;
-	frames_drawn=0;
 	singleton=this;
-	ips=60;
 	_keep_screen_on=true; // set default value to true, because this had been true before godot 2.0.
 	low_processor_usage_mode=false;
 	_verbose_stdout=false;
-	_frame_delay=0;
 	_no_window=false;
 	_exit_code=0;
 	_orientation=SCREEN_LANDSCAPE;
-	_fps=1;
-	_target_fps=0;
+
 	_render_thread_mode=RENDER_THREAD_SAFE;
-	_time_scale=1.0;
-	_pixel_snap=false;
+
+
 	_allow_hidpi=true;
-	_fixed_frames=0;
-	_idle_frames=0;
-	_in_fixed=false;
 	Math::seed(1234567);
 }
 

core/os/os.h

@@ -32,6 +32,7 @@
 #include "ustring.h"
 #include "list.h"
 #include "vector.h"
+#include "engine.h"
 #include "os/main_loop.h"
 #include <stdarg.h>
 
@@ -43,28 +44,17 @@ class OS {
 
 	static OS* singleton;
 	String _execpath;
-	String _custom_level;
 	List<String> _cmdline;
-	int ips;
 	bool _keep_screen_on;
 	bool low_processor_usage_mode;
 	bool _verbose_stdout;
 	String _local_clipboard;
-	uint64_t frames_drawn;
-	uint32_t _frame_delay;
 	uint64_t _msec_splash;
 	bool _no_window;
 	int _exit_code;
 	int _orientation;
-	float _fps;
-	int _target_fps;
-	float _time_scale;
-	bool _pixel_snap;
 	bool _allow_hidpi;
 
-	uint64_t _fixed_frames;
-	uint64_t _idle_frames;
-	bool _in_fixed;
 
 	char *last_error;
 
@@ -185,15 +175,6 @@ public:
 	virtual bool get_borderless_window() { return 0; }
 
 
-
-	virtual void set_iterations_per_second(int p_ips);
-	virtual int get_iterations_per_second() const;
-
-	virtual void set_target_fps(int p_fps);
-	virtual float get_target_fps() const;
-
-	virtual float get_frames_per_second() const { return _fps; }
-
 	virtual void set_keep_screen_on(bool p_enabled);
 	virtual bool is_keep_screen_on() const;
 	virtual void set_low_processor_usage_mode(bool p_enabled);
@@ -217,7 +198,6 @@ public:
 
 	virtual MainLoop *get_main_loop() const=0;
 
-	String get_custom_level() const { return _custom_level; }
 
 	virtual void yield();
 
@@ -280,17 +260,9 @@ public:
 	uint32_t get_ticks_msec() const;
 	uint64_t get_splash_tick_msec() const;
 
-	void set_frame_delay(uint32_t p_msec);
-	uint32_t get_frame_delay() const;
 
 	virtual bool can_draw() const = 0;
 
-	uint64_t get_frames_drawn();
-
-	uint64_t get_fixed_frames() const { return _fixed_frames; }
-	uint64_t get_idle_frames() const { return _idle_frames; }
-	bool is_in_fixed_frame() const { return _in_fixed; }
-
 	bool is_stdout_verbose() const;
 
 	enum CursorShape {
@@ -416,10 +388,6 @@ public:
 
 	virtual LatinKeyboardVariant get_latin_keyboard_variant() const;
 
-	void set_time_scale(float p_scale);
-	float get_time_scale() const;
-
-	_FORCE_INLINE_ bool get_use_pixel_snap() const { return _pixel_snap; }
 
 	virtual bool is_joy_known(int p_device);
 	virtual String get_joy_guid(int p_device)const;

core/register_core_types.cpp

@@ -62,6 +62,7 @@ static ResourceFormatLoaderBinary *resource_loader_binary=NULL;
 static _ResourceLoader *_resource_loader=NULL;
 static _ResourceSaver *_resource_saver=NULL;
 static _OS *_os=NULL;
+static _Engine *_engine=NULL;
 static _ClassDB *_classdb=NULL;
 static _Marshalls *_marshalls = NULL;
 static TranslationLoaderPO *resource_format_po=NULL;
@@ -156,6 +157,7 @@ void register_core_types() {
 	_resource_loader=memnew(_ResourceLoader);
 	_resource_saver=memnew(_ResourceSaver);
 	_os=memnew(_OS);
+	_engine=memnew(_Engine);
 	_classdb=memnew(_ClassDB);
 	_marshalls = memnew(_Marshalls);
 
@@ -179,6 +181,7 @@ void register_core_singletons() {
 	GlobalConfig::get_singleton()->add_singleton( GlobalConfig::Singleton("ResourceSaver",_ResourceSaver::get_singleton()) );
 	GlobalConfig::get_singleton()->add_singleton( GlobalConfig::Singleton("PathRemap",PathRemap::get_singleton() ) );
 	GlobalConfig::get_singleton()->add_singleton( GlobalConfig::Singleton("OS",_OS::get_singleton() ) );
+	GlobalConfig::get_singleton()->add_singleton( GlobalConfig::Singleton("Engine",_Engine::get_singleton() ) );
 	GlobalConfig::get_singleton()->add_singleton( GlobalConfig::Singleton("ClassDB",_classdb ) );
 	GlobalConfig::get_singleton()->add_singleton( GlobalConfig::Singleton("Marshalls",_Marshalls::get_singleton() ) );
 	GlobalConfig::get_singleton()->add_singleton( GlobalConfig::Singleton("TranslationServer",TranslationServer::get_singleton() ) );
@@ -196,6 +199,7 @@ void unregister_core_types() {
 	memdelete( _resource_loader );
 	memdelete( _resource_saver );
 	memdelete( _os);
+	memdelete( _engine );
 	memdelete( _classdb );
 	memdelete( _marshalls );
 

core/script_debugger_remote.cpp

@@ -778,7 +778,7 @@ void ScriptDebuggerRemote::_send_profiling_data(bool p_for_frame) {
 	}
 
 
-	packet_peer_stream->put_var(OS::get_singleton()->get_frames_drawn()); //total frame time
+	packet_peer_stream->put_var(Engine::get_singleton()->get_frames_drawn()); //total frame time
 	packet_peer_stream->put_var(frame_time); //total frame time
 	packet_peer_stream->put_var(idle_time); //idle frame time
 	packet_peer_stream->put_var(fixed_time); //fixed frame time

main/input_default.cpp

@@ -158,10 +158,10 @@ bool InputDefault::is_action_just_pressed(const StringName& p_action) const {
 	if (!E)
 		return false;
 
-	if (OS::get_singleton()->is_in_fixed_frame()) {
-		return E->get().pressed && E->get().fixed_frame==OS::get_singleton()->get_fixed_frames();
+	if (Engine::get_singleton()->is_in_fixed_frame()) {
+		return E->get().pressed && E->get().fixed_frame==Engine::get_singleton()->get_fixed_frames();
 	} else {
-		return E->get().pressed && E->get().idle_frame==OS::get_singleton()->get_idle_frames();
+		return E->get().pressed && E->get().idle_frame==Engine::get_singleton()->get_idle_frames();
 	}
 }
 
@@ -171,10 +171,10 @@ bool InputDefault::is_action_just_released(const StringName& p_action) const{
 	if (!E)
 		return false;
 
-	if (OS::get_singleton()->is_in_fixed_frame()) {
-		return !E->get().pressed && E->get().fixed_frame==OS::get_singleton()->get_fixed_frames();
+	if (Engine::get_singleton()->is_in_fixed_frame()) {
+		return !E->get().pressed && E->get().fixed_frame==Engine::get_singleton()->get_fixed_frames();
 	} else {
-		return !E->get().pressed && E->get().idle_frame==OS::get_singleton()->get_idle_frames();
+		return !E->get().pressed && E->get().idle_frame==Engine::get_singleton()->get_idle_frames();
 	}
 }
 
@@ -379,8 +379,8 @@ void InputDefault::parse_input_event(const InputEvent& p_event) {
 
 				if(is_action_pressed(E->key()) != p_event.is_pressed()) {
 					Action action;
-					action.fixed_frame=OS::get_singleton()->get_fixed_frames();
-					action.idle_frame=OS::get_singleton()->get_idle_frames();
+					action.fixed_frame=Engine::get_singleton()->get_fixed_frames();
+					action.idle_frame=Engine::get_singleton()->get_idle_frames();
 					action.pressed=p_event.is_pressed();
 					action_state[E->key()]=action;
 				}
@@ -490,8 +490,8 @@ void InputDefault::action_press(const StringName& p_action) {
 
 	Action action;
 
-	action.fixed_frame=OS::get_singleton()->get_fixed_frames();
-	action.idle_frame=OS::get_singleton()->get_idle_frames();
+	action.fixed_frame=Engine::get_singleton()->get_fixed_frames();
+	action.idle_frame=Engine::get_singleton()->get_idle_frames();
 	action.pressed=true;
 
 	action_state[p_action]=action;
@@ -502,8 +502,8 @@ void InputDefault::action_release(const StringName& p_action){
 
 	Action action;
 
-	action.fixed_frame=OS::get_singleton()->get_fixed_frames();
-	action.idle_frame=OS::get_singleton()->get_idle_frames();
+	action.fixed_frame=Engine::get_singleton()->get_fixed_frames();
+	action.idle_frame=Engine::get_singleton()->get_idle_frames();
 	action.pressed=false;
 
 	action_state[p_action]=action;

main/main.cpp

@@ -79,6 +79,7 @@
 #include "performance.h"
 
 static GlobalConfig *globals=NULL;
+static Engine *engine=NULL;
 static InputMap *input_map=NULL;
 static bool _start_success=false;
 static ScriptDebugger *script_debugger=NULL;
@@ -195,6 +196,9 @@ Error Main::setup(const char *execpath,int argc, char *argv[],bool p_second_phas
 	RID_OwnerBase::init_rid();
 
 	OS::get_singleton()->initialize_core();
+
+	engine = memnew( Engine );
+
 	ClassDB::init();
 
 	MAIN_PRINT("Main: Initialize CORE");
@@ -499,7 +503,7 @@ Error Main::setup(const char *execpath,int argc, char *argv[],bool p_second_phas
 
 			if (I->next()) {
 
-				OS::get_singleton()->set_time_scale(I->next()->get().to_double());
+				Engine::get_singleton()->set_time_scale(I->next()->get().to_double());
 				N=I->next()->next();
 			} else {
 				goto error;
@@ -742,7 +746,7 @@ Error Main::setup(const char *execpath,int argc, char *argv[],bool p_second_phas
 	use_vsync = GLOBAL_DEF("display/window/use_vsync", use_vsync);
 	GLOBAL_DEF("display/window/test_width",0);
 	GLOBAL_DEF("display/window/test_height",0);
-	OS::get_singleton()->_pixel_snap=GLOBAL_DEF("rendering/2d/use_pixel_snap",false);
+	Engine::get_singleton()->_pixel_snap=GLOBAL_DEF("rendering/2d/use_pixel_snap",false);
 	OS::get_singleton()->_keep_screen_on=GLOBAL_DEF("display/energy_saving/keep_screen_on",true);
 	if (rtm==-1) {
 		rtm=GLOBAL_DEF("rendering/threads/thread_model",OS::RENDER_THREAD_SAFE);
@@ -819,8 +823,8 @@ Error Main::setup(const char *execpath,int argc, char *argv[],bool p_second_phas
 	}
 
 
-	OS::get_singleton()->set_iterations_per_second(GLOBAL_DEF("physics/common/fixed_fps",60));
-	OS::get_singleton()->set_target_fps(GLOBAL_DEF("debug/fps/force_fps",0));
+	Engine::get_singleton()->set_iterations_per_second(GLOBAL_DEF("physics/common/fixed_fps",60));
+	Engine::get_singleton()->set_target_fps(GLOBAL_DEF("debug/fps/force_fps",0));
 
 	GLOBAL_DEF("debug/stdout/print_fps", OS::get_singleton()->is_stdout_verbose());
 
@@ -831,7 +835,7 @@ Error Main::setup(const char *execpath,int argc, char *argv[],bool p_second_phas
 		frame_delay=GLOBAL_DEF("application/frame_delay_msec",0);
 	}
 
-	OS::get_singleton()->set_frame_delay(frame_delay);
+	Engine::get_singleton()->set_frame_delay(frame_delay);
 
 	message_queue = memnew( MessageQueue );
 
@@ -862,6 +866,8 @@ Error Main::setup(const char *execpath,int argc, char *argv[],bool p_second_phas
 		memdelete( translation_server );
 	if (globals)
 		memdelete(globals);
+	if (engine)
+		memdelete(engine);
 	if (script_debugger)
 		memdelete(script_debugger);
 	if (packed_data)
@@ -1096,7 +1102,7 @@ bool Main::start() {
 			} else if (args[i]=="-script" || args[i]=="-s") {
 				script=args[i+1];
 			} else if (args[i]=="-level" || args[i]=="-l") {
-				OS::get_singleton()->_custom_level=args[i+1];
+				Engine::get_singleton()->_custom_level=args[i+1];
 			} else if (args[i]=="-test") {
 				test=args[i+1];
 			} else if (args[i]=="-optimize") {
@@ -1579,7 +1585,7 @@ bool Main::iteration() {
 	uint64_t ticks_elapsed=ticks-last_ticks;
 
 	double step=(double)ticks_elapsed / 1000000.0;
-	float frame_slice=1.0/OS::get_singleton()->get_iterations_per_second();
+	float frame_slice=1.0/Engine::get_singleton()->get_iterations_per_second();
 
 //	if (time_accum+step < frame_slice)
 //		return false;
@@ -1597,13 +1603,13 @@ bool Main::iteration() {
 
 	time_accum+=step;
 
-	float time_scale = OS::get_singleton()->get_time_scale();
+	float time_scale = Engine::get_singleton()->get_time_scale();
 
 	bool exit=false;
 
 	int iters = 0;
 
-	OS::get_singleton()->_in_fixed=true;
+	Engine::get_singleton()->_in_fixed=true;
 
 	while(time_accum>frame_slice) {
 
@@ -1635,10 +1641,10 @@ bool Main::iteration() {
 		fixed_process_ticks=MAX(fixed_process_ticks,OS::get_singleton()->get_ticks_usec()-fixed_begin); // keep the largest one for reference
 		fixed_process_max=MAX(OS::get_singleton()->get_ticks_usec()-fixed_begin,fixed_process_max);
 		iters++;
-		OS::get_singleton()->_fixed_frames++;
+		Engine::get_singleton()->_fixed_frames++;
 	}
 
-	OS::get_singleton()->_in_fixed=false;
+	Engine::get_singleton()->_in_fixed=false;
 
 	uint64_t idle_begin = OS::get_singleton()->get_ticks_usec();
 
@@ -1658,11 +1664,11 @@ bool Main::iteration() {
 		if ((!force_redraw_requested) && OS::get_singleton()->is_in_low_processor_usage_mode()) {
 			if (VisualServer::get_singleton()->has_changed()) {
 				VisualServer::get_singleton()->draw(); // flush visual commands
-				OS::get_singleton()->frames_drawn++;
+				Engine::get_singleton()->frames_drawn++;
 			}
 		} else {
 			VisualServer::get_singleton()->draw(); // flush visual commands
-			OS::get_singleton()->frames_drawn++;
+			Engine::get_singleton()->frames_drawn++;
 			force_redraw_requested = false;
 		}
 	}
@@ -1688,7 +1694,7 @@ bool Main::iteration() {
 
 	//	x11_delay_usec(10000);
 	frames++;
-	OS::get_singleton()->_idle_frames++;
+	Engine::get_singleton()->_idle_frames++;
 
 	if (frame>1000000) {
 
@@ -1696,7 +1702,7 @@ bool Main::iteration() {
 			print_line("FPS: "+itos(frames));
 		};
 
-		OS::get_singleton()->_fps=frames;
+		Engine::get_singleton()->_fps=frames;
 		performance->set_process_time(USEC_TO_SEC(idle_process_max));
 		performance->set_fixed_process_time(USEC_TO_SEC(fixed_process_max));
 		idle_process_max=0;
@@ -1710,12 +1716,12 @@ bool Main::iteration() {
 	if (OS::get_singleton()->is_in_low_processor_usage_mode() || !OS::get_singleton()->can_draw())
 		OS::get_singleton()->delay_usec(16600); //apply some delay to force idle time (results in about 60 FPS max)
 	else {
-		uint32_t frame_delay = OS::get_singleton()->get_frame_delay();
+		uint32_t frame_delay = Engine::get_singleton()->get_frame_delay();
 		if (frame_delay)
-			OS::get_singleton()->delay_usec( OS::get_singleton()->get_frame_delay()*1000 );
+			OS::get_singleton()->delay_usec( Engine::get_singleton()->get_frame_delay()*1000 );
 	}
 
-	int target_fps = OS::get_singleton()->get_target_fps();
+	int target_fps = Engine::get_singleton()->get_target_fps();
 	if (target_fps>0) {
 		uint64_t time_step = 1000000L/target_fps;
 		target_ticks += time_step;
@@ -1777,6 +1783,8 @@ void Main::cleanup() {
 		memdelete(path_remap);
 	if (globals)
 		memdelete(globals);
+	if (engine)
+		memdelete(engine);
 
 
 

main/performance.cpp

@@ -118,7 +118,7 @@ String Performance::get_monitor_name(Monitor p_monitor) const {
 float Performance::get_monitor(Monitor p_monitor) const {
 
 	switch(p_monitor) {
-		case TIME_FPS: return OS::get_singleton()->get_frames_per_second();
+		case TIME_FPS: return Engine::get_singleton()->get_frames_per_second();
 		case TIME_PROCESS: return _process_time;
 		case TIME_FIXED_PROCESS: return _fixed_process_time;
 		case MEMORY_STATIC: return Memory::get_mem_usage();

scene/2d/animated_sprite.cpp

@@ -417,7 +417,7 @@ void AnimatedSprite::_notification(int p_what) {
 			if (centered)
 				ofs-=s/2;
 
-			if (OS::get_singleton()->get_use_pixel_snap()) {
+			if (Engine::get_singleton()->get_use_pixel_snap()) {
 				ofs=ofs.floor();
 			}
 			Rect2 dst_rect(ofs,s);

scene/2d/sprite.cpp

@@ -86,7 +86,7 @@ void Sprite::_notification(int p_what) {
 			Point2 ofs=offset;
 			if (centered)
 				ofs-=s/2;
-			if (OS::get_singleton()->get_use_pixel_snap()) {
+			if (Engine::get_singleton()->get_use_pixel_snap()) {
 				ofs=ofs.floor();
 			}
 

scene/gui/control.cpp

@@ -1883,7 +1883,7 @@ void Control::show_modal(bool p_exclusive) {
 	raise();
 	data.modal_exclusive=p_exclusive;
 	data.MI=get_viewport()->_gui_show_modal(this);
-	data.modal_frame=OS::get_singleton()->get_frames_drawn();
+	data.modal_frame=Engine::get_singleton()->get_frames_drawn();
 
 }
 

scene/main/viewport.cpp

@@ -1830,7 +1830,7 @@ void Viewport::_gui_input_event(InputEvent p_event) {
 						Vector2 pos = top->get_global_transform_with_canvas().affine_inverse().xform(mpos);
 						if (!top->has_point(pos)) {
 
-							if (top->data.modal_exclusive || top->data.modal_frame==OS::get_singleton()->get_frames_drawn()) {
+							if (top->data.modal_exclusive || top->data.modal_frame==Engine::get_singleton()->get_frames_drawn()) {
 								//cancel event, sorry, modal exclusive EATS UP ALL
 								//alternative, you can't pop out a window the same frame it was made modal (fixes many issues)
 								get_tree()->set_input_as_handled();

tools/editor/animation_editor.cpp

@@ -3289,14 +3289,14 @@ bool AnimationKeyEditor::has_keying() const {
 void AnimationKeyEditor::_query_insert(const InsertData& p_id) {
 
 
-	if (insert_frame!=OS::get_singleton()->get_frames_drawn()) {
+	if (insert_frame!=Engine::get_singleton()->get_frames_drawn()) {
 		//clear insert list for the frame if frame changed
 		if (insert_confirm->is_visible_in_tree())
 			return; //do nothing
 		insert_data.clear();
 		insert_query=false;
 	}
-	insert_frame=OS::get_singleton()->get_frames_drawn();
+	insert_frame=Engine::get_singleton()->get_frames_drawn();
 
 	for (List<InsertData>::Element *E=insert_data.front();E;E=E->next()) {
 		//prevent insertion of multiple tracks

tools/editor/editor_node.cpp

@@ -258,7 +258,7 @@ void EditorNode::_notification(int p_what) {
 		//get_root_node()->set_rect(viewport->get_global_rect());
 
 		//update the circle
-		uint64_t frame = OS::get_singleton()->get_frames_drawn();
+		uint64_t frame = Engine::get_singleton()->get_frames_drawn();
 		uint32_t tick = OS::get_singleton()->get_ticks_msec();
 
 		if (frame!=circle_step_frame && (tick-circle_step_msec)>(1000/8)) {
@@ -6614,7 +6614,7 @@ EditorNode::EditorNode() {
 
 
 	circle_step_msec=OS::get_singleton()->get_ticks_msec();
-	circle_step_frame=OS::get_singleton()->get_frames_drawn();
+	circle_step_frame=Engine::get_singleton()->get_frames_drawn();
 	circle_step=0;
 
 	_rebuild_import_menu();