Replace size() == 0 with is_empty().

core/debugger/local_debugger.cpp

@@ -242,7 +242,7 @@ void LocalDebugger::debug(bool p_can_continue, bool p_is_error_breakpoint) {
 		} else if (line.begins_with("br") || line.begins_with("break")) {
 			if (line.get_slice_count(" ") <= 1) {
 				const HashMap<int, HashSet<StringName>> &breakpoints = script_debugger->get_breakpoints();
-				if (breakpoints.size() == 0) {
+				if (breakpoints.is_empty()) {
 					print_line("No Breakpoints.");
 					continue;
 				}

core/debugger/remote_debugger_peer.cpp

@@ -96,7 +96,7 @@ void RemoteDebuggerPeerTCP::_write_out() {
 	while (tcp_client->get_status() == StreamPeerTCP::STATUS_CONNECTED && tcp_client->wait(NetSocket::POLL_TYPE_OUT) == OK) {
 		uint8_t *buf = out_buf.ptrw();
 		if (out_left <= 0) {
-			if (out_queue.size() == 0) {
+			if (out_queue.is_empty()) {
 				break; // Nothing left to send
 			}
 			mutex.lock();

core/debugger/script_debugger.cpp

@@ -58,7 +58,7 @@ void ScriptDebugger::remove_breakpoint(int p_line, const StringName &p_source) {
 	}
 
 	breakpoints[p_line].erase(p_source);
-	if (breakpoints[p_line].size() == 0) {
+	if (breakpoints[p_line].is_empty()) {
 		breakpoints.erase(p_line);
 	}
 }

core/doc_data.h

@@ -114,7 +114,7 @@ public:
 				// Must be an operator or a constructor since there is no other overloading
 				if (name.left(8) == "operator") {
 					if (arguments.size() == p_method.arguments.size()) {
-						if (arguments.size() == 0) {
+						if (arguments.is_empty()) {
 							return false;
 						}
 						return arguments[0].type < p_method.arguments[0].type;
@@ -126,7 +126,7 @@ public:
 					// - 1. Default constructor: Foo()
 					// - 2. Copy constructor: Foo(Foo)
 					// - 3+. Other constructors Foo(Bar, ...) based on first argument's name
-					if (arguments.size() == 0 || p_method.arguments.size() == 0) { // 1.
+					if (arguments.is_empty() || p_method.arguments.is_empty()) { // 1.
 						return arguments.size() < p_method.arguments.size();
 					}
 					if (arguments[0].type == return_type || p_method.arguments[0].type == p_method.return_type) { // 2.

core/io/image.cpp

@@ -573,7 +573,7 @@ static bool _are_formats_compatible(Image::Format p_format0, Image::Format p_for
 void Image::convert(Format p_new_format) {
 	ERR_FAIL_INDEX_MSG(p_new_format, FORMAT_MAX, vformat("The Image format specified (%d) is out of range. See Image's Format enum.", p_new_format));
 
-	if (data.size() == 0 || p_new_format == format) {
+	if (data.is_empty() || p_new_format == format) {
 		return;
 	}
 
@@ -2177,7 +2177,7 @@ void Image::clear_mipmaps() {
 }
 
 bool Image::is_empty() const {
-	return (data.size() == 0);
+	return (data.is_empty());
 }
 
 Vector<uint8_t> Image::get_data() const {
@@ -3096,7 +3096,7 @@ void Image::_repeat_pixel_over_subsequent_memory(uint8_t *p_pixel, int p_pixel_s
 }
 
 void Image::fill(const Color &p_color) {
-	if (data.size() == 0) {
+	if (data.is_empty()) {
 		return;
 	}
 	ERR_FAIL_COND_MSG(is_compressed(), "Cannot fill in compressed image formats.");
@@ -3112,7 +3112,7 @@ void Image::fill(const Color &p_color) {
 }
 
 void Image::fill_rect(const Rect2i &p_rect, const Color &p_color) {
-	if (data.size() == 0) {
+	if (data.is_empty()) {
 		return;
 	}
 	ERR_FAIL_COND_MSG(is_compressed(), "Cannot fill rect in compressed image formats.");
@@ -3734,7 +3734,7 @@ void Image::normal_map_to_xy() {
 }
 
 Ref<Image> Image::rgbe_to_srgb() {
-	if (data.size() == 0) {
+	if (data.is_empty()) {
 		return Ref<Image>();
 	}
 
@@ -3856,7 +3856,7 @@ bool Image::detect_signed(bool p_include_mips) const {
 }
 
 void Image::srgb_to_linear() {
-	if (data.size() == 0) {
+	if (data.is_empty()) {
 		return;
 	}
 
@@ -3887,7 +3887,7 @@ void Image::srgb_to_linear() {
 }
 
 void Image::linear_to_srgb() {
-	if (data.size() == 0) {
+	if (data.is_empty()) {
 		return;
 	}
 
@@ -3918,7 +3918,7 @@ void Image::linear_to_srgb() {
 }
 
 void Image::premultiply_alpha() {
-	if (data.size() == 0) {
+	if (data.is_empty()) {
 		return;
 	}
 
@@ -3940,7 +3940,7 @@ void Image::premultiply_alpha() {
 }
 
 void Image::fix_alpha_edges() {
-	if (data.size() == 0) {
+	if (data.is_empty()) {
 		return;
 	}
 

core/math/bvh.h

@@ -406,7 +406,7 @@ public:
 		}
 
 		Vector<Vector3> convex_points = Geometry3D::compute_convex_mesh_points(&p_convex[0], p_convex.size());
-		if (convex_points.size() == 0) {
+		if (convex_points.is_empty()) {
 			return 0;
 		}
 

core/math/convex_hull.cpp

@@ -2237,7 +2237,7 @@ real_t ConvexHullComputer::compute(const Vector3 *p_coords, int32_t p_count, rea
 Error ConvexHullComputer::convex_hull(const Vector<Vector3> &p_points, Geometry3D::MeshData &r_mesh) {
 	r_mesh = Geometry3D::MeshData(); // clear
 
-	if (p_points.size() == 0) {
+	if (p_points.is_empty()) {
 		return FAILED; // matches QuickHull
 	}
 

core/math/geometry_3d.h

@@ -484,7 +484,7 @@ public:
 			LOC_OUTSIDE = -1
 		};
 
-		if (polygon.size() == 0) {
+		if (polygon.is_empty()) {
 			return polygon;
 		}
 

core/math/quick_hull.cpp

@@ -323,7 +323,7 @@ Error QuickHull::build(const Vector<Vector3> &p_points, Geometry3D::MeshData &r_
 
 		for (List<Face>::Element *&E : new_faces) {
 			Face &f2 = E->get();
-			if (f2.points_over.size() == 0) {
+			if (f2.points_over.is_empty()) {
 				faces.move_to_front(E);
 			}
 		}

core/object/message_queue.cpp

@@ -226,7 +226,7 @@ void CallQueue::_call_function(const Callable &p_callable, const Variant *p_args
 Error CallQueue::flush() {
 	LOCK_MUTEX;
 
-	if (pages.size() == 0) {
+	if (pages.is_empty()) {
 		// Never allocated
 		UNLOCK_MUTEX;
 		return OK; // Do nothing.
@@ -308,7 +308,7 @@ Error CallQueue::flush() {
 void CallQueue::clear() {
 	LOCK_MUTEX;
 
-	if (pages.size() == 0) {
+	if (pages.is_empty()) {
 		UNLOCK_MUTEX;
 		return; // Nothing to clear.
 	}

core/object/object.cpp

@@ -1900,7 +1900,7 @@ Variant::Type Object::get_static_property_type(const StringName &p_property, boo
 }
 
 Variant::Type Object::get_static_property_type_indexed(const Vector<StringName> &p_path, bool *r_valid) const {
-	if (p_path.size() == 0) {
+	if (p_path.is_empty()) {
 		if (r_valid) {
 			*r_valid = false;
 		}

core/object/script_language_extension.h

@@ -513,7 +513,7 @@ public:
 	virtual void debug_get_stack_level_locals(int p_level, List<String> *p_locals, List<Variant> *p_values, int p_max_subitems = -1, int p_max_depth = -1) override {
 		Dictionary ret;
 		GDVIRTUAL_CALL(_debug_get_stack_level_locals, p_level, p_max_subitems, p_max_depth, ret);
-		if (ret.size() == 0) {
+		if (ret.is_empty()) {
 			return;
 		}
 		if (p_locals != nullptr && ret.has("locals")) {
@@ -533,7 +533,7 @@ public:
 	virtual void debug_get_stack_level_members(int p_level, List<String> *p_members, List<Variant> *p_values, int p_max_subitems = -1, int p_max_depth = -1) override {
 		Dictionary ret;
 		GDVIRTUAL_CALL(_debug_get_stack_level_members, p_level, p_max_subitems, p_max_depth, ret);
-		if (ret.size() == 0) {
+		if (ret.is_empty()) {
 			return;
 		}
 		if (p_members != nullptr && ret.has("members")) {
@@ -560,7 +560,7 @@ public:
 	virtual void debug_get_globals(List<String> *p_globals, List<Variant> *p_values, int p_max_subitems = -1, int p_max_depth = -1) override {
 		Dictionary ret;
 		GDVIRTUAL_CALL(_debug_get_globals, p_max_subitems, p_max_depth, ret);
-		if (ret.size() == 0) {
+		if (ret.is_empty()) {
 			return;
 		}
 		if (p_globals != nullptr && ret.has("globals")) {

core/object/worker_thread_pool.cpp

@@ -221,7 +221,7 @@ void WorkerThreadPool::_post_tasks(Task **p_tasks, uint32_t p_count, bool p_high
 	// Fall back to processing on the calling thread if there are no worker threads.
 	// Separated into its own variable to make it easier to extend this logic
 	// in custom builds.
-	bool process_on_calling_thread = threads.size() == 0;
+	bool process_on_calling_thread = threads.is_empty();
 	if (process_on_calling_thread) {
 		p_lock.temp_unlock();
 		for (uint32_t i = 0; i < p_count; i++) {
@@ -789,7 +789,7 @@ void WorkerThreadPool::init(int p_thread_count, float p_low_priority_task_ratio)
 }
 
 void WorkerThreadPool::exit_languages_threads() {
-	if (threads.size() == 0) {
+	if (threads.is_empty()) {
 		return;
 	}
 
@@ -809,7 +809,7 @@ void WorkerThreadPool::exit_languages_threads() {
 }
 
 void WorkerThreadPool::finish() {
-	if (threads.size() == 0) {
+	if (threads.is_empty()) {
 		return;
 	}
 

core/string/node_path.cpp

@@ -350,7 +350,7 @@ void NodePath::simplify() {
 			data->path.remove_at(i - 1);
 			data->path.remove_at(i - 1);
 			i -= 2;
-			if (data->path.size() == 0) {
+			if (data->path.is_empty()) {
 				data->path.push_back(".");
 				break;
 			}
@@ -366,7 +366,7 @@ NodePath NodePath::simplified() const {
 }
 
 NodePath::NodePath(const Vector<StringName> &p_path, bool p_absolute) {
-	if (p_path.size() == 0 && !p_absolute) {
+	if (p_path.is_empty() && !p_absolute) {
 		return;
 	}
 
@@ -378,7 +378,7 @@ NodePath::NodePath(const Vector<StringName> &p_path, bool p_absolute) {
 }
 
 NodePath::NodePath(const Vector<StringName> &p_path, const Vector<StringName> &p_subpath, bool p_absolute) {
-	if (p_path.size() == 0 && p_subpath.size() == 0 && !p_absolute) {
+	if (p_path.is_empty() && p_subpath.is_empty() && !p_absolute) {
 		return;
 	}
 

core/string/optimized_translation.cpp

@@ -110,7 +110,7 @@ void OptimizedTranslation::generate(const Ref<Translation> &p_from) {
 		const Vector<Pair<int, CharString>> &b = buckets[i];
 		HashMap<uint32_t, int> &t = table.write[i];
 
-		if (b.size() == 0) {
+		if (b.is_empty()) {
 			continue;
 		}
 
@@ -148,7 +148,7 @@ void OptimizedTranslation::generate(const Ref<Translation> &p_from) {
 
 	for (int i = 0; i < size; i++) {
 		const HashMap<uint32_t, int> &t = table[i];
-		if (t.size() == 0) {
+		if (t.is_empty()) {
 			htw[i] = 0xFFFFFFFF; //nothing
 			continue;
 		}

core/string/ustring.cpp

@@ -3298,7 +3298,7 @@ int String::findmk(const Vector<String> &p_keys, int p_from, int *r_key) const {
 	if (p_from < 0) {
 		return -1;
 	}
-	if (p_keys.size() == 0) {
+	if (p_keys.is_empty()) {
 		return -1;
 	}
 

core/variant/array.cpp

@@ -345,7 +345,7 @@ Variant Array::pick_random() const {
 }
 
 int Array::find(const Variant &p_value, int p_from) const {
-	if (_p->array.size() == 0) {
+	if (_p->array.is_empty()) {
 		return -1;
 	}
 	Variant value = p_value;
@@ -396,7 +396,7 @@ int Array::find_custom(const Callable &p_callable, int p_from) const {
 }
 
 int Array::rfind(const Variant &p_value, int p_from) const {
-	if (_p->array.size() == 0) {
+	if (_p->array.is_empty()) {
 		return -1;
 	}
 	Variant value = p_value;
@@ -421,7 +421,7 @@ int Array::rfind(const Variant &p_value, int p_from) const {
 }
 
 int Array::rfind_custom(const Callable &p_callable, int p_from) const {
-	if (_p->array.size() == 0) {
+	if (_p->array.is_empty()) {
 		return -1;
 	}
 
@@ -458,7 +458,7 @@ int Array::rfind_custom(const Callable &p_callable, int p_from) const {
 int Array::count(const Variant &p_value) const {
 	Variant value = p_value;
 	ERR_FAIL_COND_V(!_p->typed.validate(value, "count"), 0);
-	if (_p->array.size() == 0) {
+	if (_p->array.is_empty()) {
 		return 0;
 	}
 

core/variant/variant.cpp

@@ -984,34 +984,34 @@ bool Variant::is_zero() const {
 
 		// Arrays.
 		case PACKED_BYTE_ARRAY: {
-			return PackedArrayRef<uint8_t>::get_array(_data.packed_array).size() == 0;
+			return PackedArrayRef<uint8_t>::get_array(_data.packed_array).is_empty();
 		}
 		case PACKED_INT32_ARRAY: {
-			return PackedArrayRef<int32_t>::get_array(_data.packed_array).size() == 0;
+			return PackedArrayRef<int32_t>::get_array(_data.packed_array).is_empty();
 		}
 		case PACKED_INT64_ARRAY: {
-			return PackedArrayRef<int64_t>::get_array(_data.packed_array).size() == 0;
+			return PackedArrayRef<int64_t>::get_array(_data.packed_array).is_empty();
 		}
 		case PACKED_FLOAT32_ARRAY: {
-			return PackedArrayRef<float>::get_array(_data.packed_array).size() == 0;
+			return PackedArrayRef<float>::get_array(_data.packed_array).is_empty();
 		}
 		case PACKED_FLOAT64_ARRAY: {
-			return PackedArrayRef<double>::get_array(_data.packed_array).size() == 0;
+			return PackedArrayRef<double>::get_array(_data.packed_array).is_empty();
 		}
 		case PACKED_STRING_ARRAY: {
-			return PackedArrayRef<String>::get_array(_data.packed_array).size() == 0;
+			return PackedArrayRef<String>::get_array(_data.packed_array).is_empty();
 		}
 		case PACKED_VECTOR2_ARRAY: {
-			return PackedArrayRef<Vector2>::get_array(_data.packed_array).size() == 0;
+			return PackedArrayRef<Vector2>::get_array(_data.packed_array).is_empty();
 		}
 		case PACKED_VECTOR3_ARRAY: {
-			return PackedArrayRef<Vector3>::get_array(_data.packed_array).size() == 0;
+			return PackedArrayRef<Vector3>::get_array(_data.packed_array).is_empty();
 		}
 		case PACKED_COLOR_ARRAY: {
-			return PackedArrayRef<Color>::get_array(_data.packed_array).size() == 0;
+			return PackedArrayRef<Color>::get_array(_data.packed_array).is_empty();
 		}
 		case PACKED_VECTOR4_ARRAY: {
-			return PackedArrayRef<Vector4>::get_array(_data.packed_array).size() == 0;
+			return PackedArrayRef<Vector4>::get_array(_data.packed_array).is_empty();
 		}
 		default: {
 		}

drivers/gles3/rasterizer_canvas_gles3.cpp

@@ -1572,7 +1572,7 @@ void RasterizerCanvasGLES3::_add_to_batch(uint32_t &r_index, bool &r_batch_broke
 }
 
 void RasterizerCanvasGLES3::_new_batch(bool &r_batch_broken) {
-	if (state.canvas_instance_batches.size() == 0) {
+	if (state.canvas_instance_batches.is_empty()) {
 		Batch new_batch;
 		new_batch.instance_buffer_index = state.current_instance_buffer_index;
 		state.canvas_instance_batches.push_back(new_batch);

drivers/gles3/rasterizer_scene_gles3.cpp

@@ -3218,11 +3218,11 @@ void RasterizerSceneGLES3::_render_list_template(RenderListParameters *p_params,
 						spec_constants |= SceneShaderGLES3::DISABLE_LIGHT_DIRECTIONAL;
 						spec_constants |= SceneShaderGLES3::DISABLE_LIGHTMAP;
 					} else {
-						if (inst->omni_light_gl_cache.size() == 0) {
+						if (inst->omni_light_gl_cache.is_empty()) {
 							spec_constants |= SceneShaderGLES3::DISABLE_LIGHT_OMNI;
 						}
 
-						if (inst->spot_light_gl_cache.size() == 0) {
+						if (inst->spot_light_gl_cache.is_empty()) {
 							spec_constants |= SceneShaderGLES3::DISABLE_LIGHT_SPOT;
 						}
 
@@ -3230,7 +3230,7 @@ void RasterizerSceneGLES3::_render_list_template(RenderListParameters *p_params,
 							spec_constants |= SceneShaderGLES3::DISABLE_LIGHT_DIRECTIONAL;
 						}
 
-						if (inst->reflection_probe_rid_cache.size() == 0) {
+						if (inst->reflection_probe_rid_cache.is_empty()) {
 							// We don't have any probes.
 							spec_constants |= SceneShaderGLES3::DISABLE_REFLECTION_PROBE;
 						} else if (inst->reflection_probe_rid_cache.size() > 1) {

drivers/gles3/shader_gles3.cpp

@@ -690,7 +690,7 @@ void ShaderGLES3::_save_to_cache(Version *p_version) {
 
 void ShaderGLES3::_clear_version(Version *p_version) {
 	// Variants not compiled yet, just return
-	if (p_version->variants.size() == 0) {
+	if (p_version->variants.is_empty()) {
 		return;
 	}
 

drivers/gles3/shader_gles3.h

@@ -188,7 +188,7 @@ protected:
 		Version *version = version_owner.get_or_null(p_version);
 		ERR_FAIL_NULL_V(version, false);
 
-		if (version->variants.size() == 0) {
+		if (version->variants.is_empty()) {
 			_initialize_version(version); //may lack initialization
 		}
 

editor/animation_bezier_editor.cpp

@@ -2042,7 +2042,7 @@ void AnimationBezierTrackEdit::_menu_selected(int p_index) {
 }
 
 void AnimationBezierTrackEdit::duplicate_selected_keys(real_t p_ofs, bool p_ofs_valid) {
-	if (selection.size() == 0) {
+	if (selection.is_empty()) {
 		return;
 	}
 

editor/animation_track_editor.cpp

@@ -6623,7 +6623,7 @@ void AnimationTrackEditor::_edit_menu_pressed(int p_option) {
 			}
 		} break;
 		case EDIT_PASTE_TRACKS: {
-			if (track_clipboard.size() == 0) {
+			if (track_clipboard.is_empty()) {
 				EditorNode::get_singleton()->show_warning(TTR("Clipboard is empty!"));
 				break;
 			}

editor/debugger/script_editor_debugger.cpp

@@ -371,7 +371,7 @@ void ScriptEditorDebugger::_msg_debug_exit(uint64_t p_thread_id, const Array &p_
 	threads_debugged.erase(p_thread_id);
 	if (p_thread_id == debugging_thread_id) {
 		_clear_execution();
-		if (threads_debugged.size() == 0) {
+		if (threads_debugged.is_empty()) {
 			debugging_thread_id = Thread::UNASSIGNED_ID;
 		} else {
 			// Find next thread to debug.
@@ -1667,7 +1667,7 @@ void ScriptEditorDebugger::_error_selected() {
 	}
 
 	Array meta = selected->get_metadata(0);
-	if (meta.size() == 0) {
+	if (meta.is_empty()) {
 		return;
 	}
 

editor/dependency_editor.cpp

@@ -613,7 +613,7 @@ void DependencyRemoveDialog::ok_pressed() {
 		ProjectSettings::get_singleton()->save();
 	}
 
-	if (dirs_to_delete.size() == 0) {
+	if (dirs_to_delete.is_empty()) {
 		// If we only deleted files we should only need to tell the file system about the files we touched.
 		for (int i = 0; i < files_to_delete.size(); ++i) {
 			EditorFileSystem::get_singleton()->update_file(files_to_delete[i]);

editor/doc_tools.cpp

@@ -628,7 +628,7 @@ void DocTools::generate(BitField<GenerateFlags> p_flags) {
 					// Don't skip parametric setters and getters, i.e. method which require
 					// one or more parameters to define what property should be set or retrieved.
 					// E.g. CPUParticles3D::set_param(Parameter param, float value).
-					if (E.arguments.size() == 0 /* getter */ || (E.arguments.size() == 1 && E.return_val.type == Variant::NIL /* setter */)) {
+					if (E.arguments.is_empty() /* getter */ || (E.arguments.size() == 1 && E.return_val.type == Variant::NIL /* setter */)) {
 						continue;
 					}
 				}

editor/editor_autoload_settings.cpp

@@ -621,7 +621,7 @@ Variant EditorAutoloadSettings::get_drag_data_fw(const Point2 &p_point, Control
 		next = tree->get_next_selected(next);
 	}
 
-	if (autoloads.size() == 0 || autoloads.size() == autoload_cache.size()) {
+	if (autoloads.is_empty() || autoloads.size() == autoload_cache.size()) {
 		return Variant();
 	}
 

editor/editor_file_system.cpp

@@ -802,7 +802,7 @@ Vector<String> EditorFileSystem::_get_import_dest_paths(const String &p_path) {
 }
 
 bool EditorFileSystem::_scan_import_support(const Vector<String> &reimports) {
-	if (import_support_queries.size() == 0) {
+	if (import_support_queries.is_empty()) {
 		return false;
 	}
 	HashMap<String, int> import_support_test;
@@ -818,7 +818,7 @@ bool EditorFileSystem::_scan_import_support(const Vector<String> &reimports) {
 		}
 	}
 
-	if (import_support_test.size() == 0) {
+	if (import_support_test.is_empty()) {
 		return false; //well nothing to do
 	}
 
@@ -1858,7 +1858,7 @@ bool EditorFileSystem::_find_file(const String &p_file, EditorFileSystemDirector
 
 	Vector<String> path = f.split("/");
 
-	if (path.size() == 0) {
+	if (path.is_empty()) {
 		return false;
 	}
 	String file = path[path.size() - 1];
@@ -1991,7 +1991,7 @@ EditorFileSystemDirectory *EditorFileSystem::get_filesystem_path(const String &p
 
 	Vector<String> path = f.split("/");
 
-	if (path.size() == 0) {
+	if (path.is_empty()) {
 		return nullptr;
 	}
 

editor/editor_node.cpp

@@ -3816,7 +3816,7 @@ void EditorNode::_update_addon_config() {
 		enabled_addons.push_back(E.key);
 	}
 
-	if (enabled_addons.size() == 0) {
+	if (enabled_addons.is_empty()) {
 		ProjectSettings::get_singleton()->set("editor_plugins/enabled", Variant());
 	} else {
 		enabled_addons.sort();
@@ -6342,7 +6342,7 @@ void EditorNode::preload_reimporting_with_path_in_edited_scenes(const List<Strin
 }
 
 void EditorNode::reload_instances_with_path_in_edited_scenes() {
-	if (scenes_modification_table.size() == 0) {
+	if (scenes_modification_table.is_empty()) {
 		return;
 	}
 	EditorProgress progress("reloading_scene", TTR("Scenes reloading"), editor_data.get_edited_scene_count());

editor/editor_properties.cpp

@@ -573,7 +573,7 @@ void EditorPropertyPath::_drop_data_fw(const Point2 &p_point, const Variant &p_d
 		return;
 	}
 	const Vector<String> filesPaths = drag_data["files"];
-	if (filesPaths.size() == 0) {
+	if (filesPaths.is_empty()) {
 		return;
 	}
 
@@ -589,7 +589,7 @@ bool EditorPropertyPath::_can_drop_data_fw(const Point2 &p_point, const Variant
 		return false;
 	}
 	const Vector<String> filesPaths = drag_data["files"];
-	if (filesPaths.size() == 0) {
+	if (filesPaths.is_empty()) {
 		return false;
 	}
 

editor/editor_resource_preview.cpp

@@ -262,7 +262,7 @@ const Dictionary EditorResourcePreview::get_preview_metadata(const String &p_pat
 void EditorResourcePreview::_iterate() {
 	preview_mutex.lock();
 
-	if (queue.size() == 0) {
+	if (queue.is_empty()) {
 		preview_mutex.unlock();
 		return;
 	}

editor/export/editor_export_platform.cpp

@@ -1572,7 +1572,7 @@ Error EditorExportPlatform::export_project_files(const Ref<EditorExportPreset> &
 		Vector<uint8_t> array;
 		if (GDExtension::get_extension_list_config_file() == forced_export[i]) {
 			array = _filter_extension_list_config_file(forced_export[i], paths);
-			if (array.size() == 0) {
+			if (array.is_empty()) {
 				continue;
 			}
 		} else {

editor/filesystem_dock.cpp

@@ -3840,7 +3840,7 @@ void FileSystemDock::_update_import_dock() {
 		imports.push_back(fpath);
 	}
 
-	if (imports.size() == 0) {
+	if (imports.is_empty()) {
 		ImportDock::get_singleton()->clear();
 	} else if (imports.size() == 1) {
 		ImportDock::get_singleton()->set_edit_path(imports[0]);

editor/find_in_files.cpp

@@ -117,7 +117,7 @@ void FindInFiles::start() {
 		emit_signal(SceneStringName(finished));
 		return;
 	}
-	if (_extension_filter.size() == 0) {
+	if (_extension_filter.is_empty()) {
 		print_verbose("Nothing to search, filter matches no files");
 		emit_signal(SceneStringName(finished));
 		return;
@@ -183,7 +183,7 @@ void FindInFiles::_iterate() {
 			pop_back(_folders_stack);
 			_current_dir = _current_dir.get_base_dir();
 
-			if (_folders_stack.size() == 0) {
+			if (_folders_stack.is_empty()) {
 				// All folders scanned.
 				_initial_files_count = _files_to_scan.size();
 			}

editor/gui/editor_file_dialog.cpp

@@ -770,7 +770,7 @@ void EditorFileDialog::_items_clear_selection(const Vector2 &p_pos, MouseButton
 void EditorFileDialog::_push_history() {
 	local_history.resize(local_history_pos + 1);
 	String new_path = dir_access->get_current_dir();
-	if (local_history.size() == 0 || new_path != local_history[local_history_pos]) {
+	if (local_history.is_empty() || new_path != local_history[local_history_pos]) {
 		local_history.push_back(new_path);
 		local_history_pos++;
 		dir_prev->set_disabled(local_history_pos == 0);
@@ -940,7 +940,7 @@ bool EditorFileDialog::_is_open_should_be_disabled() {
 	}
 
 	Vector<int> items = item_list->get_selected_items();
-	if (items.size() == 0) {
+	if (items.is_empty()) {
 		return mode != FILE_MODE_OPEN_DIR; // In "Open folder" mode, having nothing selected picks the current folder.
 	}
 

editor/gui/scene_tree_editor.cpp

@@ -447,7 +447,7 @@ void SceneTreeEditor::_update_node(Node *p_node, TreeItem *p_item, bool p_part_o
 			_set_item_custom_color(p_item, accent);
 		}
 	} else if (p_part_of_subscene) {
-		if (valid_types.size() == 0) {
+		if (valid_types.is_empty()) {
 			_set_item_custom_color(p_item, get_theme_color(SNAME("warning_color"), EditorStringName(Editor)));
 		}
 	} else if (marked.has(p_node)) {
@@ -1865,7 +1865,7 @@ bool SceneTreeEditor::can_drop_data_fw(const Point2 &p_point, const Variant &p_d
 	if (String(d["type"]) == "files") {
 		Vector<String> files = d["files"];
 
-		if (files.size() == 0) {
+		if (files.is_empty()) {
 			return false; // TODO Weird?
 		}
 

editor/import/3d/editor_import_collada.cpp

@@ -706,7 +706,7 @@ Error ColladaImport::_create_mesh_surfaces(bool p_optimize, Ref<ImporterMesh> &p
 					}
 				}
 
-				if (weights.size() == 0 || total == 0) { //if nothing, add a weight to bone 0
+				if (weights.is_empty() || total == 0) { //if nothing, add a weight to bone 0
 					//no weights assigned
 					Collada::Vertex::Weight w;
 					w.bone_idx = 0;
@@ -1278,7 +1278,7 @@ Error ColladaImport::_create_resources(Collada::Node *p_node, bool p_use_compres
 					mesh_unique_names.insert(name);
 
 					mesh->set_name(name);
-					Error err = _create_mesh_surfaces(morphs.size() == 0, mesh, ng2->material_map, meshdata, apply_xform, bone_remap, skin, morph, morphs, p_use_compression, use_mesh_builtin_materials);
+					Error err = _create_mesh_surfaces(morphs.is_empty(), mesh, ng2->material_map, meshdata, apply_xform, bone_remap, skin, morph, morphs, p_use_compression, use_mesh_builtin_materials);
 					ERR_FAIL_COND_V_MSG(err, err, "Cannot create mesh surface.");
 
 					mesh_cache[meshid] = mesh;

editor/import/3d/resource_importer_obj.cpp

@@ -402,7 +402,7 @@ static Error _parse_obj(const String &p_path, List<Ref<ImporterMesh>> &r_meshes,
 			//groups are too annoying
 			if (surf_tool->get_vertex_array().size()) {
 				//another group going on, commit it
-				if (normals.size() == 0) {
+				if (normals.is_empty()) {
 					surf_tool->generate_normals();
 				}
 

editor/plugins/bone_map_editor_plugin.cpp

@@ -665,7 +665,7 @@ void BoneMapper::auto_mapping_process(Ref<BoneMap> &p_bone_map) {
 		search_path.push_back(bone_idx);
 		bone_idx = skeleton->get_bone_parent(bone_idx);
 	}
-	if (search_path.size() == 0) {
+	if (search_path.is_empty()) {
 		bone_idx = -1;
 	} else if (search_path.size() == 1) {
 		bone_idx = search_path[0]; // It is only one bone which can be root.
@@ -1329,7 +1329,7 @@ void BoneMapper::auto_mapping_process(Ref<BoneMap> &p_bone_map) {
 		bone_idx = skeleton->get_bone_parent(bone_idx);
 	}
 	search_path.reverse();
-	if (search_path.size() == 0) {
+	if (search_path.is_empty()) {
 		p_bone_map->_set_skeleton_bone_name("Spine", skeleton->get_bone_name(chest_or_upper_chest)); // Maybe chibi model...?
 	} else if (search_path.size() == 1) {
 		p_bone_map->_set_skeleton_bone_name("Spine", skeleton->get_bone_name(search_path[0]));

editor/plugins/canvas_item_editor_plugin.cpp

@@ -6273,7 +6273,7 @@ void CanvasItemEditorViewport::drop_data(const Point2 &p_point, const Variant &p
 	if (d.has("type") && String(d["type"]) == "files") {
 		selected_files = d["files"];
 	}
-	if (selected_files.size() == 0) {
+	if (selected_files.is_empty()) {
 		return;
 	}
 

editor/plugins/control_editor_plugin.cpp

@@ -330,7 +330,7 @@ void EditorPropertySizeFlags::update_property() {
 void EditorPropertySizeFlags::setup(const Vector<String> &p_options, bool p_vertical) {
 	vertical = p_vertical;
 
-	if (p_options.size() == 0) {
+	if (p_options.is_empty()) {
 		flag_presets->clear();
 		flag_presets->add_item(TTR("Container Default"));
 		flag_presets->set_disabled(true);

editor/plugins/gizmos/lightmap_gi_gizmo_plugin.cpp

@@ -88,7 +88,7 @@ void LightmapGIGizmoPlugin::redraw(EditorNode3DGizmo *p_gizmo) {
 	HashSet<Vector2i> lines_found;
 
 	Vector<Vector3> points = data->get_capture_points();
-	if (points.size() == 0) {
+	if (points.is_empty()) {
 		return;
 	}
 	Vector<Color> sh = data->get_capture_sh();

editor/plugins/mesh_instance_3d_editor_plugin.cpp

@@ -394,7 +394,7 @@ void MeshInstance3DEditor::_create_uv_lines(int p_layer) {
 		Array a = mesh->surface_get_arrays(i);
 
 		Vector<Vector2> uv = a[p_layer == 0 ? Mesh::ARRAY_TEX_UV : Mesh::ARRAY_TEX_UV2];
-		if (uv.size() == 0) {
+		if (uv.is_empty()) {
 			err_dialog->set_text(vformat(TTR("Mesh has no UV in layer %d."), p_layer + 1));
 			err_dialog->popup_centered();
 			return;
@@ -440,7 +440,7 @@ void MeshInstance3DEditor::_create_uv_lines(int p_layer) {
 }
 
 void MeshInstance3DEditor::_debug_uv_draw() {
-	if (uv_lines.size() == 0) {
+	if (uv_lines.is_empty()) {
 		return;
 	}
 

editor/plugins/multimesh_editor_plugin.cpp

@@ -120,7 +120,7 @@ void MultiMeshEditor::_populate() {
 
 	Vector<Face3> geometry = ss_instance->get_mesh()->get_faces();
 
-	if (geometry.size() == 0) {
+	if (geometry.is_empty()) {
 		err_dialog->set_text(TTR("Surface source is invalid (no faces)."));
 		err_dialog->popup_centered();
 		return;

editor/plugins/particles_editor_plugin.cpp

@@ -656,7 +656,7 @@ void Particles3DEditorPlugin::_node_selected(const NodePath &p_path) {
 	}
 
 	geometry = mi->get_mesh()->get_faces();
-	if (geometry.size() == 0) {
+	if (geometry.is_empty()) {
 		EditorNode::get_singleton()->show_warning(vformat(TTR("\"%s\" doesn't contain face geometry."), sel->get_name()));
 		return;
 	}

editor/plugins/polygon_2d_editor_plugin.cpp

@@ -182,7 +182,7 @@ void Polygon2DEditor::_sync_bones() {
 				}
 			}
 
-			if (weights.size() == 0) { //create them
+			if (weights.is_empty()) { //create them
 				weights.resize(wc);
 				float *w = weights.ptrw();
 				for (int j = 0; j < wc; j++) {
@@ -311,7 +311,7 @@ void Polygon2DEditor::_edit_menu_option(int p_option) {
 	switch (p_option) {
 		case MENU_POLYGON_TO_UV: {
 			Vector<Vector2> points = node->get_polygon();
-			if (points.size() == 0) {
+			if (points.is_empty()) {
 				break;
 			}
 			Vector<Vector2> uvs = node->get_uv();
@@ -323,7 +323,7 @@ void Polygon2DEditor::_edit_menu_option(int p_option) {
 		case MENU_UV_TO_POLYGON: {
 			Vector<Vector2> points = node->get_polygon();
 			Vector<Vector2> uvs = node->get_uv();
-			if (uvs.size() == 0) {
+			if (uvs.is_empty()) {
 				break;
 			}
 
@@ -334,7 +334,7 @@ void Polygon2DEditor::_edit_menu_option(int p_option) {
 		} break;
 		case MENU_UV_CLEAR: {
 			Vector<Vector2> uvs = node->get_uv();
-			if (uvs.size() == 0) {
+			if (uvs.is_empty()) {
 				break;
 			}
 			undo_redo->create_action(TTR("Create UV Map"));

editor/plugins/polygon_3d_editor_plugin.cpp

@@ -462,7 +462,7 @@ void Polygon3DEditor::_polygon_draw() {
 
 	imesh->surface_end();
 
-	if (poly.size() == 0) {
+	if (poly.is_empty()) {
 		return;
 	}
 

editor/plugins/script_editor_plugin.cpp

@@ -3206,7 +3206,7 @@ bool ScriptEditor::can_drop_data_fw(const Point2 &p_point, const Variant &p_data
 
 	if (String(d["type"]) == "nodes") {
 		Array nodes = d["nodes"];
-		if (nodes.size() == 0) {
+		if (nodes.is_empty()) {
 			return false;
 		}
 		Node *node = get_node((nodes[0]));
@@ -3224,7 +3224,7 @@ bool ScriptEditor::can_drop_data_fw(const Point2 &p_point, const Variant &p_data
 	if (String(d["type"]) == "files") {
 		Vector<String> files = d["files"];
 
-		if (files.size() == 0) {
+		if (files.is_empty()) {
 			return false; //weird
 		}
 
@@ -3282,7 +3282,7 @@ void ScriptEditor::drop_data_fw(const Point2 &p_point, const Variant &p_data, Co
 
 	if (String(d["type"]) == "nodes") {
 		Array nodes = d["nodes"];
-		if (nodes.size() == 0) {
+		if (nodes.is_empty()) {
 			return;
 		}
 		Node *node = get_node(nodes[0]);

editor/plugins/script_text_editor.cpp

@@ -760,7 +760,7 @@ void ScriptTextEditor::_update_bookmark_list() {
 	bookmarks_menu->add_shortcut(ED_GET_SHORTCUT("script_text_editor/goto_previous_bookmark"), BOOKMARK_GOTO_PREV);
 
 	PackedInt32Array bookmark_list = code_editor->get_text_editor()->get_bookmarked_lines();
-	if (bookmark_list.size() == 0) {
+	if (bookmark_list.is_empty()) {
 		return;
 	}
 
@@ -915,7 +915,7 @@ void ScriptTextEditor::_update_breakpoint_list() {
 	breakpoints_menu->add_shortcut(ED_GET_SHORTCUT("script_text_editor/goto_previous_breakpoint"), DEBUG_GOTO_PREV_BREAKPOINT);
 
 	PackedInt32Array breakpoint_list = code_editor->get_text_editor()->get_breakpointed_lines();
-	if (breakpoint_list.size() == 0) {
+	if (breakpoint_list.is_empty()) {
 		return;
 	}
 

editor/plugins/shader_editor_plugin.cpp

@@ -646,7 +646,7 @@ bool ShaderEditorPlugin::can_drop_data_fw(const Point2 &p_point, const Variant &
 	if (String(d["type"]) == "files") {
 		Vector<String> files = d["files"];
 
-		if (files.size() == 0) {
+		if (files.is_empty()) {
 			return false;
 		}
 

editor/plugins/shader_file_editor_plugin.cpp

@@ -166,7 +166,7 @@ void ShaderFileEditor::_update_options() {
 		}
 	}
 
-	if (version_list.size() == 0) {
+	if (version_list.is_empty()) {
 		for (int i = 0; i < RD::SHADER_STAGE_MAX; i++) {
 			stages[i]->set_disabled(true);
 		}

editor/plugins/sprite_frames_editor_plugin.cpp

@@ -131,7 +131,7 @@ void SpriteFramesEditor::_sheet_preview_draw() {
 	}
 	_draw_shadowed_line(split_sheet_preview, draw_offset + Vector2(0, draw_size.y), Vector2(draw_size.x, 0), Vector2(0, 1), line_color, shadow_color);
 
-	if (frames_selected.size() == 0) {
+	if (frames_selected.is_empty()) {
 		split_sheet_dialog->get_ok_button()->set_disabled(true);
 		split_sheet_dialog->set_ok_button_text(TTR("No Frames Selected"));
 		return;
@@ -1699,7 +1699,7 @@ bool SpriteFramesEditor::can_drop_data_fw(const Point2 &p_point, const Variant &
 	if (String(d["type"]) == "files") {
 		Vector<String> files = d["files"];
 
-		if (files.size() == 0) {
+		if (files.is_empty()) {
 			return false;
 		}
 

editor/plugins/text_editor.cpp

@@ -216,7 +216,7 @@ void TextEditor::_update_bookmark_list() {
 	bookmarks_menu->add_shortcut(ED_GET_SHORTCUT("script_text_editor/goto_previous_bookmark"), BOOKMARK_GOTO_PREV);
 
 	PackedInt32Array bookmark_list = code_editor->get_text_editor()->get_bookmarked_lines();
-	if (bookmark_list.size() == 0) {
+	if (bookmark_list.is_empty()) {
 		return;
 	}
 

editor/plugins/text_shader_editor.cpp

@@ -1062,7 +1062,7 @@ void TextShaderEditor::_update_bookmark_list() {
 	bookmarks_menu->add_shortcut(ED_GET_SHORTCUT("script_text_editor/goto_previous_bookmark"), BOOKMARK_GOTO_PREV);
 
 	PackedInt32Array bookmark_list = code_editor->get_text_editor()->get_bookmarked_lines();
-	if (bookmark_list.size() == 0) {
+	if (bookmark_list.is_empty()) {
 		return;
 	}
 

editor/plugins/theme_editor_plugin.cpp

@@ -136,7 +136,7 @@ void ThemeItemImportTree::_update_items_tree() {
 				filtered_names.push_back(F);
 			}
 
-			if (filtered_names.size() == 0) {
+			if (filtered_names.is_empty()) {
 				continue;
 			}
 
@@ -734,7 +734,7 @@ void ThemeItemImportTree::_deselect_all_data_type_pressed(int p_data_type) {
 }
 
 void ThemeItemImportTree::_import_selected() {
-	if (selected_items.size() == 0) {
+	if (selected_items.is_empty()) {
 		EditorNode::get_singleton()->show_accept(TTR("Nothing was selected for the import."), TTR("OK"));
 		return;
 	}

editor/plugins/tiles/tile_data_editors.cpp

@@ -836,7 +836,7 @@ void GenericTilePolygonEditor::remove_polygon(int p_index) {
 	ERR_FAIL_INDEX(p_index, (int)polygons.size());
 	polygons.remove_at(p_index);
 
-	if (polygons.size() == 0) {
+	if (polygons.is_empty()) {
 		button_create->set_pressed(true);
 	}
 	base_control->queue_redraw();

editor/plugins/tiles/tile_set_editor.cpp

@@ -80,7 +80,7 @@ bool TileSetEditor::_can_drop_data_fw(const Point2 &p_point, const Variant &p_da
 		if (String(d["type"]) == "files") {
 			Vector<String> files = d["files"];
 
-			if (files.size() == 0) {
+			if (files.is_empty()) {
 				return false;
 			}
 

editor/plugins/tiles/tile_set_scenes_collection_source_editor.cpp

@@ -483,7 +483,7 @@ bool TileSetScenesCollectionSourceEditor::_can_drop_data_fw(const Point2 &p_poin
 		if (String(d["type"]) == "files") {
 			Vector<String> files = d["files"];
 
-			if (files.size() == 0) {
+			if (files.is_empty()) {
 				return false;
 			}
 

editor/plugins/tiles/tiles_editor_plugin.cpp

@@ -74,7 +74,7 @@ void TilesEditorUtils::_thread() {
 		pattern_preview_sem.wait();
 
 		pattern_preview_mutex.lock();
-		if (pattern_preview_queue.size() == 0) {
+		if (pattern_preview_queue.is_empty()) {
 			pattern_preview_mutex.unlock();
 		} else {
 			QueueItem item = pattern_preview_queue.front()->get();

editor/plugins/visual_shader_editor_plugin.cpp

@@ -7979,7 +7979,7 @@ Control *VisualShaderNodePluginDefault::create_editor(const Ref<Resource> &p_par
 	}
 
 	Vector<StringName> properties = p_node->get_editable_properties();
-	if (properties.size() == 0) {
+	if (properties.is_empty()) {
 		return nullptr;
 	}
 
@@ -7996,7 +7996,7 @@ Control *VisualShaderNodePluginDefault::create_editor(const Ref<Resource> &p_par
 		}
 	}
 
-	if (pinfo.size() == 0) {
+	if (pinfo.is_empty()) {
 		return nullptr;
 	}
 

editor/project_converter_3_to_4.cpp

@@ -2226,7 +2226,7 @@ void ProjectConverter3To4::process_gdscript_line(String &line, const RegExContai
 		int end = get_end_parenthesis(line.substr(start)) + 1;
 		if (end > -1) {
 			Vector<String> parts = parse_arguments(line.substr(start, end));
-			if (parts.size() == 0) {
+			if (parts.is_empty()) {
 				line = line.substr(0, start) + "DisplayServer.get_display_safe_area()" + line.substr(end + start);
 			}
 		}

editor/project_manager.cpp

@@ -673,7 +673,7 @@ void ProjectManager::_new_project() {
 void ProjectManager::_rename_project() {
 	const Vector<ProjectList::Item> &selected_list = project_list->get_selected_projects();
 
-	if (selected_list.size() == 0) {
+	if (selected_list.is_empty()) {
 		return;
 	}
 
@@ -688,7 +688,7 @@ void ProjectManager::_rename_project() {
 void ProjectManager::_erase_project() {
 	const HashSet<String> &selected_list = project_list->get_selected_project_keys();
 
-	if (selected_list.size() == 0) {
+	if (selected_list.is_empty()) {
 		return;
 	}
 

editor/project_manager/project_list.cpp

@@ -1046,7 +1046,7 @@ void ProjectList::select_first_visible_project() {
 
 Vector<ProjectList::Item> ProjectList::get_selected_projects() const {
 	Vector<Item> items;
-	if (_selected_project_paths.size() == 0) {
+	if (_selected_project_paths.is_empty()) {
 		return items;
 	}
 	items.resize(_selected_project_paths.size());
@@ -1067,7 +1067,7 @@ const HashSet<String> &ProjectList::get_selected_project_keys() const {
 }
 
 int ProjectList::get_single_selected_index() const {
-	if (_selected_project_paths.size() == 0) {
+	if (_selected_project_paths.is_empty()) {
 		// Default selection
 		return 0;
 	}
@@ -1088,7 +1088,7 @@ int ProjectList::get_single_selected_index() const {
 }
 
 void ProjectList::erase_selected_projects(bool p_delete_project_contents) {
-	if (_selected_project_paths.size() == 0) {
+	if (_selected_project_paths.is_empty()) {
 		return;
 	}
 

editor/scene_tree_dock.cpp

@@ -659,7 +659,7 @@ void SceneTreeDock::_tool_selected(int p_tool, bool p_confirm_override) {
 			}
 
 			List<Node *> selection = editor_selection->get_top_selected_node_list();
-			if (selection.size() == 0) {
+			if (selection.is_empty()) {
 				break;
 			}
 
@@ -887,7 +887,7 @@ void SceneTreeDock::_tool_selected(int p_tool, bool p_confirm_override) {
 			}
 
 			List<Node *> selection = editor_selection->get_top_selected_node_list();
-			if (selection.size() == 0) {
+			if (selection.is_empty()) {
 				break;
 			}
 
@@ -2333,7 +2333,7 @@ void SceneTreeDock::_node_reparent(NodePath p_path, bool p_keep_global_xform) {
 void SceneTreeDock::_do_reparent(Node *p_new_parent, int p_position_in_parent, Vector<Node *> p_nodes, bool p_keep_global_xform) {
 	ERR_FAIL_NULL(p_new_parent);
 
-	if (p_nodes.size() == 0) {
+	if (p_nodes.is_empty()) {
 		return; // Nothing to reparent.
 	}
 
@@ -3748,7 +3748,7 @@ void SceneTreeDock::_tree_rmb(const Vector2 &p_menu_pos) {
 	List<Node *> selection = editor_selection->get_top_selected_node_list();
 	List<Node *> full_selection = editor_selection->get_full_selected_node_list(); // Above method only returns nodes with common parent.
 
-	if (selection.size() == 0) {
+	if (selection.is_empty()) {
 		return;
 	}
 

main/main.cpp

@@ -2106,7 +2106,7 @@ Error Main::setup(const char *execpath, int argc, char *argv[], bool p_second_ph
 		OS::get_singleton()->add_logger(memnew(RotatedFileLogger(base_path, max_files)));
 	}
 
-	if (main_args.size() == 0 && String(GLOBAL_GET("application/run/main_scene")) == "") {
+	if (main_args.is_empty() && String(GLOBAL_GET("application/run/main_scene")) == "") {
 #ifdef TOOLS_ENABLED
 		if (!editor && !project_manager) {
 #endif

modules/csg/csg_shape.cpp

@@ -1135,13 +1135,13 @@ CSGBrush *CSGMesh3D::_build_brush() {
 
 		Array arrays = mesh->surface_get_arrays(i);
 
-		if (arrays.size() == 0) {
+		if (arrays.is_empty()) {
 			_make_dirty();
 			ERR_FAIL_COND_V(arrays.is_empty(), memnew(CSGBrush));
 		}
 
 		Vector<Vector3> avertices = arrays[Mesh::ARRAY_VERTEX];
-		if (avertices.size() == 0) {
+		if (avertices.is_empty()) {
 			continue;
 		}
 
@@ -1257,7 +1257,7 @@ CSGBrush *CSGMesh3D::_build_brush() {
 		}
 	}
 
-	if (vertices.size() == 0) {
+	if (vertices.is_empty()) {
 		return memnew(CSGBrush);
 	}
 

modules/csg/editor/csg_gizmos.cpp

@@ -379,7 +379,7 @@ void CSGShape3DGizmoPlugin::redraw(EditorNode3DGizmo *p_gizmo) {
 
 	Vector<Vector3> faces = cs->get_brush_faces();
 
-	if (faces.size() == 0) {
+	if (faces.is_empty()) {
 		return;
 	}
 

modules/fbx/fbx_document.cpp

@@ -1080,7 +1080,7 @@ Error FBXDocument::_parse_images(Ref<FBXState> p_state, const String &p_base_pat
 			}
 			// Fallback to loading as byte array.
 			data = FileAccess::get_file_as_bytes(path);
-			if (data.size() == 0) {
+			if (data.is_empty()) {
 				WARN_PRINT(vformat("FBX: Image index '%d' couldn't be loaded from path: %s because there was no data to load. Skipping it.", texture_i, path));
 				p_state->images.push_back(Ref<Texture2D>()); // Placeholder to keep count.
 				p_state->source_images.push_back(Ref<Image>());

modules/gdscript/gdscript.cpp

@@ -2846,7 +2846,7 @@ String GDScriptLanguage::get_global_class_name(const String &p_path, String *r_b
 		while (subclass) {
 			if (subclass->extends_used) {
 				if (!subclass->extends_path.is_empty()) {
-					if (subclass->extends.size() == 0) {
+					if (subclass->extends.is_empty()) {
 						get_global_class_name(subclass->extends_path, r_base_type);
 						subclass = nullptr;
 						break;

modules/gltf/gltf_document.cpp

@@ -741,7 +741,7 @@ Error GLTFDocument::_encode_buffer_glb(Ref<GLTFState> p_state, const String &p_p
 		if (file.is_null()) {
 			return err;
 		}
-		if (buffer_data.size() == 0) {
+		if (buffer_data.is_empty()) {
 			return OK;
 		}
 		file->create(FileAccess::ACCESS_RESOURCES);
@@ -773,7 +773,7 @@ Error GLTFDocument::_encode_buffer_bins(Ref<GLTFState> p_state, const String &p_
 		if (file.is_null()) {
 			return err;
 		}
-		if (buffer_data.size() == 0) {
+		if (buffer_data.is_empty()) {
 			return OK;
 		}
 		file->create(FileAccess::ACCESS_RESOURCES);
@@ -1647,7 +1647,7 @@ Vector<double> GLTFDocument::_decode_accessor(Ref<GLTFState> p_state, const GLTF
 }
 
 GLTFAccessorIndex GLTFDocument::_encode_accessor_as_ints(Ref<GLTFState> p_state, const Vector<int32_t> p_attribs, const bool p_for_vertex, const bool p_for_vertex_indices) {
-	if (p_attribs.size() == 0) {
+	if (p_attribs.is_empty()) {
 		return -1;
 	}
 	const int element_count = 1;
@@ -1712,7 +1712,7 @@ Vector<int> GLTFDocument::_decode_accessor_as_ints(Ref<GLTFState> p_state, const
 	const Vector<double> attribs = _decode_accessor(p_state, p_accessor, p_for_vertex);
 	Vector<int> ret;
 
-	if (attribs.size() == 0) {
+	if (attribs.is_empty()) {
 		return ret;
 	}
 
@@ -1737,7 +1737,7 @@ Vector<float> GLTFDocument::_decode_accessor_as_floats(Ref<GLTFState> p_state, c
 	const Vector<double> attribs = _decode_accessor(p_state, p_accessor, p_for_vertex);
 	Vector<float> ret;
 
-	if (attribs.size() == 0) {
+	if (attribs.is_empty()) {
 		return ret;
 	}
 
@@ -1768,7 +1768,7 @@ void GLTFDocument::_round_min_max_components(Vector<double> &r_type_min, Vector<
 }
 
 GLTFAccessorIndex GLTFDocument::_encode_accessor_as_vec2(Ref<GLTFState> p_state, const Vector<Vector2> p_attribs, const bool p_for_vertex) {
-	if (p_attribs.size() == 0) {
+	if (p_attribs.is_empty()) {
 		return -1;
 	}
 	const int element_count = 2;
@@ -1818,7 +1818,7 @@ GLTFAccessorIndex GLTFDocument::_encode_accessor_as_vec2(Ref<GLTFState> p_state,
 }
 
 GLTFAccessorIndex GLTFDocument::_encode_accessor_as_color(Ref<GLTFState> p_state, const Vector<Color> p_attribs, const bool p_for_vertex) {
-	if (p_attribs.size() == 0) {
+	if (p_attribs.is_empty()) {
 		return -1;
 	}
 
@@ -1884,7 +1884,7 @@ void GLTFDocument::_calc_accessor_min_max(int p_i, const int p_element_count, Ve
 }
 
 GLTFAccessorIndex GLTFDocument::_encode_accessor_as_weights(Ref<GLTFState> p_state, const Vector<Color> p_attribs, const bool p_for_vertex) {
-	if (p_attribs.size() == 0) {
+	if (p_attribs.is_empty()) {
 		return -1;
 	}
 
@@ -1938,7 +1938,7 @@ GLTFAccessorIndex GLTFDocument::_encode_accessor_as_weights(Ref<GLTFState> p_sta
 }
 
 GLTFAccessorIndex GLTFDocument::_encode_accessor_as_joints(Ref<GLTFState> p_state, const Vector<Color> p_attribs, const bool p_for_vertex) {
-	if (p_attribs.size() == 0) {
+	if (p_attribs.is_empty()) {
 		return -1;
 	}
 
@@ -1989,7 +1989,7 @@ GLTFAccessorIndex GLTFDocument::_encode_accessor_as_joints(Ref<GLTFState> p_stat
 }
 
 GLTFAccessorIndex GLTFDocument::_encode_accessor_as_quaternions(Ref<GLTFState> p_state, const Vector<Quaternion> p_attribs, const bool p_for_vertex) {
-	if (p_attribs.size() == 0) {
+	if (p_attribs.is_empty()) {
 		return -1;
 	}
 	const int element_count = 4;
@@ -2045,7 +2045,7 @@ Vector<Vector2> GLTFDocument::_decode_accessor_as_vec2(Ref<GLTFState> p_state, c
 	const Vector<double> attribs = _decode_accessor(p_state, p_accessor, p_for_vertex);
 	Vector<Vector2> ret;
 
-	if (attribs.size() == 0) {
+	if (attribs.is_empty()) {
 		return ret;
 	}
 
@@ -2068,7 +2068,7 @@ Vector<Vector2> GLTFDocument::_decode_accessor_as_vec2(Ref<GLTFState> p_state, c
 }
 
 GLTFAccessorIndex GLTFDocument::_encode_accessor_as_floats(Ref<GLTFState> p_state, const Vector<double> p_attribs, const bool p_for_vertex) {
-	if (p_attribs.size() == 0) {
+	if (p_attribs.is_empty()) {
 		return -1;
 	}
 	const int element_count = 1;
@@ -2117,7 +2117,7 @@ GLTFAccessorIndex GLTFDocument::_encode_accessor_as_floats(Ref<GLTFState> p_stat
 }
 
 GLTFAccessorIndex GLTFDocument::_encode_accessor_as_vec3(Ref<GLTFState> p_state, const Vector<Vector3> p_attribs, const bool p_for_vertex) {
-	if (p_attribs.size() == 0) {
+	if (p_attribs.is_empty()) {
 		return -1;
 	}
 	const int element_count = 3;
@@ -2167,7 +2167,7 @@ GLTFAccessorIndex GLTFDocument::_encode_accessor_as_vec3(Ref<GLTFState> p_state,
 }
 
 GLTFAccessorIndex GLTFDocument::_encode_sparse_accessor_as_vec3(Ref<GLTFState> p_state, const Vector<Vector3> p_attribs, const Vector<Vector3> p_reference_attribs, const float p_reference_multiplier, const bool p_for_vertex, const GLTFAccessorIndex p_reference_accessor) {
-	if (p_attribs.size() == 0) {
+	if (p_attribs.is_empty()) {
 		return -1;
 	}
 
@@ -2276,7 +2276,7 @@ GLTFAccessorIndex GLTFDocument::_encode_sparse_accessor_as_vec3(Ref<GLTFState> p
 }
 
 GLTFAccessorIndex GLTFDocument::_encode_accessor_as_xform(Ref<GLTFState> p_state, const Vector<Transform3D> p_attribs, const bool p_for_vertex) {
-	if (p_attribs.size() == 0) {
+	if (p_attribs.is_empty()) {
 		return -1;
 	}
 	const int element_count = 16;
@@ -2351,7 +2351,7 @@ Vector<Vector3> GLTFDocument::_decode_accessor_as_vec3(Ref<GLTFState> p_state, c
 	const Vector<double> attribs = _decode_accessor(p_state, p_accessor, p_for_vertex);
 	Vector<Vector3> ret;
 
-	if (attribs.size() == 0) {
+	if (attribs.is_empty()) {
 		return ret;
 	}
 
@@ -2377,7 +2377,7 @@ Vector<Color> GLTFDocument::_decode_accessor_as_color(Ref<GLTFState> p_state, co
 	const Vector<double> attribs = _decode_accessor(p_state, p_accessor, p_for_vertex);
 	Vector<Color> ret;
 
-	if (attribs.size() == 0) {
+	if (attribs.is_empty()) {
 		return ret;
 	}
 
@@ -2409,7 +2409,7 @@ Vector<Quaternion> GLTFDocument::_decode_accessor_as_quaternion(Ref<GLTFState> p
 	const Vector<double> attribs = _decode_accessor(p_state, p_accessor, p_for_vertex);
 	Vector<Quaternion> ret;
 
-	if (attribs.size() == 0) {
+	if (attribs.is_empty()) {
 		return ret;
 	}
 
@@ -2428,7 +2428,7 @@ Vector<Transform2D> GLTFDocument::_decode_accessor_as_xform2d(Ref<GLTFState> p_s
 	const Vector<double> attribs = _decode_accessor(p_state, p_accessor, p_for_vertex);
 	Vector<Transform2D> ret;
 
-	if (attribs.size() == 0) {
+	if (attribs.is_empty()) {
 		return ret;
 	}
 
@@ -2445,7 +2445,7 @@ Vector<Basis> GLTFDocument::_decode_accessor_as_basis(Ref<GLTFState> p_state, co
 	const Vector<double> attribs = _decode_accessor(p_state, p_accessor, p_for_vertex);
 	Vector<Basis> ret;
 
-	if (attribs.size() == 0) {
+	if (attribs.is_empty()) {
 		return ret;
 	}
 
@@ -2463,7 +2463,7 @@ Vector<Transform3D> GLTFDocument::_decode_accessor_as_xform(Ref<GLTFState> p_sta
 	const Vector<double> attribs = _decode_accessor(p_state, p_accessor, p_for_vertex);
 	Vector<Transform3D> ret;
 
-	if (attribs.size() == 0) {
+	if (attribs.is_empty()) {
 		return ret;
 	}
 
@@ -4148,7 +4148,7 @@ Error GLTFDocument::_parse_images(Ref<GLTFState> p_state, const String &p_base_p
 				// Fallback to loading as byte array. This enables us to support the
 				// spec's requirement that we honor mimetype regardless of file URI.
 				data = FileAccess::get_file_as_bytes(resource_uri);
-				if (data.size() == 0) {
+				if (data.is_empty()) {
 					WARN_PRINT(vformat("glTF: Image index '%d' couldn't be loaded as a buffer of MIME type '%s' from URI: %s because there was no data to load. Skipping it.", i, mime_type, resource_uri));
 					p_state->images.push_back(Ref<Texture2D>()); // Placeholder to keep count.
 					p_state->source_images.push_back(Ref<Image>());

modules/gltf/skin_tool.cpp

@@ -520,7 +520,7 @@ Error SkinTool::_determine_skeleton_roots(
 
 	skeleton->roots = roots;
 
-	if (roots.size() == 0) {
+	if (roots.is_empty()) {
 		return FAILED;
 	} else if (roots.size() == 1) {
 		return OK;

modules/godot_physics_2d/godot_body_2d.cpp

@@ -626,7 +626,7 @@ void GodotBody2D::integrate_velocities(real_t p_step) {
 	if (mode == PhysicsServer2D::BODY_MODE_KINEMATIC) {
 		_set_transform(new_transform, false);
 		_set_inv_transform(new_transform.affine_inverse());
-		if (contacts.size() == 0 && linear_velocity == Vector2() && angular_velocity == 0) {
+		if (contacts.is_empty() && linear_velocity == Vector2() && angular_velocity == 0) {
 			set_active(false); //stopped moving, deactivate
 		}
 		return;

modules/godot_physics_2d/godot_shape_2d.cpp

@@ -665,7 +665,7 @@ bool GodotConcavePolygonShape2D::contains_point(const Vector2 &p_point) const {
 }
 
 bool GodotConcavePolygonShape2D::intersect_segment(const Vector2 &p_begin, const Vector2 &p_end, Vector2 &r_point, Vector2 &r_normal) const {
-	if (segments.size() == 0 || points.size() == 0) {
+	if (segments.is_empty() || points.is_empty()) {
 		return false;
 	}
 
@@ -919,7 +919,7 @@ void GodotConcavePolygonShape2D::cull(const Rect2 &p_local_aabb, QueryCallback p
 		stack[i]=0;
 	*/
 
-	if (segments.size() == 0 || points.size() == 0 || bvh.size() == 0) {
+	if (segments.is_empty() || points.is_empty() || bvh.is_empty()) {
 		return;
 	}
 

modules/godot_physics_3d/godot_body_3d.cpp

@@ -701,7 +701,7 @@ void GodotBody3D::integrate_velocities(real_t p_step) {
 	if (mode == PhysicsServer3D::BODY_MODE_KINEMATIC) {
 		_set_transform(new_transform, false);
 		_set_inv_transform(new_transform.affine_inverse());
-		if (contacts.size() == 0 && linear_velocity == Vector3() && angular_velocity == Vector3()) {
+		if (contacts.is_empty() && linear_velocity == Vector3() && angular_velocity == Vector3()) {
 			set_active(false); //stopped moving, deactivate
 		}
 

modules/godot_physics_3d/godot_shape_3d.cpp

@@ -838,7 +838,7 @@ void GodotConvexPolygonShape3D::project_range(const Vector3 &p_normal, const Tra
 
 Vector3 GodotConvexPolygonShape3D::get_support(const Vector3 &p_normal) const {
 	// Skip if there are no vertices in the mesh
-	if (mesh.vertices.size() == 0) {
+	if (mesh.vertices.is_empty()) {
 		return Vector3();
 	}
 
@@ -1369,7 +1369,7 @@ void GodotConcavePolygonShape3D::_cull_segment(int p_idx, _SegmentCullParams *p_
 }
 
 bool GodotConcavePolygonShape3D::intersect_segment(const Vector3 &p_begin, const Vector3 &p_end, Vector3 &r_result, Vector3 &r_normal, int &r_face_index, bool p_hit_back_faces) const {
-	if (faces.size() == 0) {
+	if (faces.is_empty()) {
 		return false;
 	}
 
@@ -1449,7 +1449,7 @@ bool GodotConcavePolygonShape3D::_cull(int p_idx, _CullParams *p_params) const {
 
 void GodotConcavePolygonShape3D::cull(const AABB &p_local_aabb, QueryCallback p_callback, void *p_userdata, bool p_invert_backface_collision) const {
 	// make matrix local to concave
-	if (faces.size() == 0) {
+	if (faces.is_empty()) {
 		return;
 	}
 

modules/gridmap/grid_map.cpp

@@ -605,7 +605,7 @@ bool GridMap::_octant_update(const OctantKey &p_key) {
 	}
 	g.multimesh_instances.clear();
 
-	if (g.cells.size() == 0) {
+	if (g.cells.is_empty()) {
 		//octant no longer needed
 		_octant_clean_up(p_key);
 		return true;
@@ -637,7 +637,7 @@ bool GridMap::_octant_update(const OctantKey &p_key) {
 		xform.basis = _ortho_bases[c.rot];
 		xform.set_origin(cellpos * cell_size + ofs);
 		xform.basis.scale(Vector3(cell_scale, cell_scale, cell_scale));
-		if (baked_meshes.size() == 0) {
+		if (baked_meshes.is_empty()) {
 			if (mesh_library->get_item_mesh(c.item).is_valid()) {
 				if (!multimesh_items.has(c.item)) {
 					multimesh_items[c.item] = List<Pair<Transform3D, IndexKey>>();
@@ -716,7 +716,7 @@ bool GridMap::_octant_update(const OctantKey &p_key) {
 #endif // defined(DEBUG_ENABLED) && !defined(NAVIGATION_3D_DISABLED)
 
 	//update multimeshes, only if not baked
-	if (baked_meshes.size() == 0) {
+	if (baked_meshes.is_empty()) {
 		for (const KeyValue<int, List<Pair<Transform3D, IndexKey>>> &E : multimesh_items) {
 			Octant::MultimeshInstance mmi;
 
@@ -1642,7 +1642,7 @@ void GridMap::_update_octant_navigation_debug_edge_connections_mesh(const Octant
 		}
 	}
 
-	if (vertex_array.size() == 0) {
+	if (vertex_array.is_empty()) {
 		return;
 	}
 

modules/interactive_music/editor/audio_stream_interactive_editor_plugin.cpp

@@ -115,7 +115,7 @@ void AudioStreamInteractiveTransitionEditor::_update_selection() {
 	filler_clip->set_disabled(selected.is_empty());
 	hold_previous->set_disabled(selected.is_empty());
 
-	if (selected.size() == 0) {
+	if (selected.is_empty()) {
 		return;
 	}
 

modules/lightmapper_rd/lightmapper_rd.cpp

@@ -645,19 +645,19 @@ void LightmapperRD::_create_acceleration_structures(RenderingDevice *rd, Size2i
 		r_cluster_aabbs_buffer = rd->storage_buffer_create(cab.size(), cab);
 
 		Vector<uint8_t> lb = lights.to_byte_array();
-		if (lb.size() == 0) {
+		if (lb.is_empty()) {
 			lb.resize(sizeof(Light)); //even if no lights, the buffer must exist
 		}
 		lights_buffer = rd->storage_buffer_create(lb.size(), lb);
 
 		Vector<uint8_t> sb = seam_buffer_vec.to_byte_array();
-		if (sb.size() == 0) {
+		if (sb.is_empty()) {
 			sb.resize(sizeof(Vector2i) * 2); //even if no seams, the buffer must exist
 		}
 		seams_buffer = rd->storage_buffer_create(sb.size(), sb);
 
 		Vector<uint8_t> pb = p_probe_positions.to_byte_array();
-		if (pb.size() == 0) {
+		if (pb.is_empty()) {
 			pb.resize(sizeof(Probe));
 		}
 		probe_positions_buffer = rd->storage_buffer_create(pb.size(), pb);

modules/mono/csharp_script.cpp

@@ -650,7 +650,7 @@ void CSharpLanguage::reload_assemblies(bool p_soft_reload) {
 
 		for (SelfList<CSharpScript> *elem = script_list.first(); elem; elem = elem->next()) {
 			// Do not reload scripts with only non-collectible instances to avoid disrupting event subscriptions and such.
-			bool is_reloadable = elem->self()->instances.size() == 0;
+			bool is_reloadable = elem->self()->instances.is_empty();
 			for (Object *obj : elem->self()->instances) {
 				ERR_CONTINUE(!obj->get_script_instance());
 				CSharpInstance *csi = static_cast<CSharpInstance *>(obj->get_script_instance());

modules/mono/editor/bindings_generator.cpp

@@ -3200,7 +3200,7 @@ Error BindingsGenerator::_generate_cs_signal(const BindingsGenerator::TypeInterf
 
 	// Generate signal
 	{
-		bool is_parameterless = p_isignal.arguments.size() == 0;
+		bool is_parameterless = p_isignal.arguments.is_empty();
 
 		// Delegate name is [SignalName]EventHandler
 		String delegate_name = is_parameterless ? "Action" : p_isignal.proxy_name + "EventHandler";

modules/multiplayer/multiplayer_synchronizer.cpp

@@ -376,7 +376,7 @@ Error MultiplayerSynchronizer::_watch_changes(uint64_t p_usec) {
 	if (props.size() != watchers.size()) {
 		watchers.resize(props.size());
 	}
-	if (props.size() == 0) {
+	if (props.is_empty()) {
 		return OK;
 	}
 	Node *node = get_root_node();

modules/navigation_2d/2d/nav_mesh_generator_2d.cpp

@@ -71,7 +71,7 @@ NavMeshGenerator2D::~NavMeshGenerator2D() {
 }
 
 void NavMeshGenerator2D::sync() {
-	if (generator_tasks.size() == 0) {
+	if (generator_tasks.is_empty()) {
 		return;
 	}
 

modules/navigation_3d/3d/nav_mesh_generator_3d.cpp

@@ -70,7 +70,7 @@ NavMeshGenerator3D::~NavMeshGenerator3D() {
 }
 
 void NavMeshGenerator3D::sync() {
-	if (generator_tasks.size() == 0) {
+	if (generator_tasks.is_empty()) {
 		return;
 	}
 

modules/noise/noise.cpp

@@ -54,7 +54,7 @@ Vector<Ref<Image>> Noise::_get_seamless_image(int p_width, int p_height, int p_d
 
 Ref<Image> Noise::get_seamless_image(int p_width, int p_height, bool p_invert, bool p_in_3d_space, real_t p_blend_skirt, bool p_normalize) const {
 	Vector<Ref<Image>> images = _get_seamless_image(p_width, p_height, 1, p_invert, p_in_3d_space, p_blend_skirt, p_normalize);
-	if (images.size() == 0) {
+	if (images.is_empty()) {
 		return Ref<Image>();
 	}
 	return images[0];

modules/openxr/action_map/openxr_action_set.cpp

@@ -84,7 +84,7 @@ int OpenXRActionSet::get_action_count() const {
 
 void OpenXRActionSet::clear_actions() {
 	// Actions held within our action set should be released and destroyed but just in case they are still used some where else
-	if (actions.size() == 0) {
+	if (actions.is_empty()) {
 		return;
 	}
 

modules/regex/regex.cpp

@@ -69,7 +69,7 @@ String RegExMatch::get_subject() const {
 }
 
 int RegExMatch::get_group_count() const {
-	if (data.size() == 0) {
+	if (data.is_empty()) {
 		return 0;
 	}
 	return data.size() - 1;

modules/tinyexr/image_saver_tinyexr.cpp

@@ -285,7 +285,7 @@ Vector<uint8_t> save_exr_buffer(const Ref<Image> &p_img, bool p_grayscale) {
 
 Error save_exr(const String &p_path, const Ref<Image> &p_img, bool p_grayscale) {
 	const Vector<uint8_t> buffer = save_exr_buffer(p_img, p_grayscale);
-	if (buffer.size() == 0) {
+	if (buffer.is_empty()) {
 		print_error(String("Saving EXR failed."));
 		return ERR_FILE_CANT_WRITE;
 	} else {

modules/webrtc/webrtc_multiplayer_peer.cpp

@@ -64,7 +64,7 @@ bool WebRTCMultiplayerPeer::is_server() const {
 }
 
 void WebRTCMultiplayerPeer::poll() {
-	if (peer_map.size() == 0) {
+	if (peer_map.is_empty()) {
 		return;
 	}
 

modules/websocket/wsl_peer.cpp

@@ -451,7 +451,7 @@ bool WSLPeer::_verify_server_response() {
 	WSL_CHECK_NC("sec-websocket-accept", _compute_key_response(session_key));
 #undef WSL_CHECK_NC
 #undef WSL_CHECK
-	if (supported_protocols.size() == 0) {
+	if (supported_protocols.is_empty()) {
 		// We didn't request a custom protocol
 		ERR_FAIL_COND_V_MSG(headers.has("sec-websocket-protocol"), false, "Received unrequested sub-protocol -> " + headers["sec-websocket-protocol"]);
 	} else {

modules/webxr/webxr_interface_js.cpp

@@ -294,7 +294,7 @@ bool WebXRInterfaceJS::initialize() {
 			return false;
 		}
 
-		if (requested_reference_space_types.size() == 0) {
+		if (requested_reference_space_types.is_empty()) {
 			return false;
 		}
 

platform/linuxbsd/x11/display_server_x11.cpp

@@ -2092,7 +2092,7 @@ void DisplayServerX11::_update_window_mouse_passthrough(WindowID p_window) {
 			Region region = XCreateRegion();
 			XShapeCombineRegion(x11_display, windows[p_window].x11_window, ShapeInput, 0, 0, region, ShapeSet);
 			XDestroyRegion(region);
-		} else if (region_path.size() == 0) {
+		} else if (region_path.is_empty()) {
 			XShapeCombineMask(x11_display, windows[p_window].x11_window, ShapeInput, 0, 0, None, ShapeSet);
 		} else {
 			XPoint *points = (XPoint *)memalloc(sizeof(XPoint) * region_path.size());

platform/web/audio_driver_web.cpp

@@ -95,7 +95,7 @@ void AudioDriverWeb::_audio_driver_process(int p_from, int p_samples) {
 }
 
 void AudioDriverWeb::_audio_driver_capture(int p_from, int p_samples) {
-	if (get_input_buffer().size() == 0) {
+	if (get_input_buffer().is_empty()) {
 		return; // Input capture stopped.
 	}
 	const int max_samples = memarr_len(input_rb);

platform/windows/display_server_windows.cpp

@@ -420,7 +420,7 @@ public:
 		int gid = ctl_id++;
 		int cid = ctl_id++;
 
-		if (p_options.size() == 0) {
+		if (p_options.is_empty()) {
 			// Add check box.
 			p_pfdc->StartVisualGroup(gid, L"");
 			p_pfdc->AddCheckButton(cid, (LPCWSTR)p_name.utf16().get_data(), p_default);

scene/2d/animated_sprite_2d.cpp

@@ -301,7 +301,7 @@ void AnimatedSprite2D::set_sprite_frames(const Ref<SpriteFrames> &p_frames) {
 
 		List<StringName> al;
 		frames->get_animation_list(&al);
-		if (al.size() == 0) {
+		if (al.is_empty()) {
 			set_animation(StringName());
 			autoplay = String();
 		} else {

scene/2d/cpu_particles_2d.cpp

@@ -675,7 +675,7 @@ static real_t rand_from_seed(uint32_t &seed) {
 }
 
 void CPUParticles2D::_update_internal() {
-	if (particles.size() == 0 || !is_visible_in_tree()) {
+	if (particles.is_empty() || !is_visible_in_tree()) {
 		_set_do_redraw(false);
 		return;
 	}

scene/2d/light_occluder_2d.cpp

@@ -51,7 +51,7 @@ Rect2 OccluderPolygon2D::_edit_get_rect() const {
 			}
 			rect_cache_dirty = false;
 		} else {
-			if (polygon.size() == 0) {
+			if (polygon.is_empty()) {
 				item_rect = Rect2();
 			} else {
 				Vector2 d = Vector2(LINE_GRAB_WIDTH, LINE_GRAB_WIDTH);
@@ -270,7 +270,7 @@ PackedStringArray LightOccluder2D::get_configuration_warnings() const {
 		warnings.push_back(RTR("An occluder polygon must be set (or drawn) for this occluder to take effect."));
 	}
 
-	if (occluder_polygon.is_valid() && occluder_polygon->get_polygon().size() == 0) {
+	if (occluder_polygon.is_valid() && occluder_polygon->get_polygon().is_empty()) {
 		warnings.push_back(RTR("The occluder polygon for this occluder is empty. Please draw a polygon."));
 	}
 

scene/2d/line_2d.cpp

@@ -38,7 +38,7 @@ Line2D::Line2D() {
 
 #ifdef DEBUG_ENABLED
 Rect2 Line2D::_edit_get_rect() const {
-	if (_points.size() == 0) {
+	if (_points.is_empty()) {
 		return Rect2(0, 0, 0, 0);
 	}
 	Vector2 min = _points[0];

scene/2d/navigation/navigation_agent_2d.cpp

@@ -594,7 +594,7 @@ Vector2 NavigationAgent2D::get_next_path_position() {
 	_update_navigation();
 
 	const Vector<Vector2> &navigation_path = navigation_result->get_path();
-	if (navigation_path.size() == 0) {
+	if (navigation_path.is_empty()) {
 		ERR_FAIL_NULL_V_MSG(agent_parent, Vector2(), "The agent has no parent.");
 		return agent_parent->get_global_position();
 	} else {
@@ -632,7 +632,7 @@ Vector2 NavigationAgent2D::get_final_position() {
 
 Vector2 NavigationAgent2D::_get_final_position() const {
 	const Vector<Vector2> &navigation_path = navigation_result->get_path();
-	if (navigation_path.size() == 0) {
+	if (navigation_path.is_empty()) {
 		return Vector2();
 	}
 	return navigation_path[navigation_path.size() - 1];
@@ -685,7 +685,7 @@ void NavigationAgent2D::_update_navigation() {
 
 	if (NavigationServer2D::get_singleton()->agent_is_map_changed(agent)) {
 		reload_path = true;
-	} else if (navigation_result->get_path().size() == 0) {
+	} else if (navigation_result->get_path().is_empty()) {
 		reload_path = true;
 	} else {
 		// Check if too far from the navigation path
@@ -724,7 +724,7 @@ void NavigationAgent2D::_update_navigation() {
 		emit_signal(SNAME("path_changed"));
 	}
 
-	if (navigation_result->get_path().size() == 0) {
+	if (navigation_result->get_path().is_empty()) {
 		return;
 	}
 

scene/2d/physics/character_body_2d.cpp

@@ -509,7 +509,7 @@ Ref<KinematicCollision2D> CharacterBody2D::_get_slide_collision(int p_bounce) {
 }
 
 Ref<KinematicCollision2D> CharacterBody2D::_get_last_slide_collision() {
-	if (motion_results.size() == 0) {
+	if (motion_results.is_empty()) {
 		return Ref<KinematicCollision2D>();
 	}
 	return _get_slide_collision(motion_results.size() - 1);