Initialize class variables with default values in scene/ [2/2]

editor/editor_feature_profile.cpp

@@ -277,11 +277,7 @@ void EditorFeatureProfile::_bind_methods() {
 	BIND_ENUM_CONSTANT(FEATURE_MAX);
 }
 
-EditorFeatureProfile::EditorFeatureProfile() {
+EditorFeatureProfile::EditorFeatureProfile() {}
-	for (int i = 0; i < FEATURE_MAX; i++) {
-		features_disabled[i] = false;
-	}
-}
 
 //////////////////////////
 

scene/3d/vehicle_body_3d.h

@@ -87,7 +87,7 @@ class VehicleWheel3D : public Node3D {
 		Vector3 m_wheelDirectionWS; //direction in worldspace
 		Vector3 m_wheelAxleWS; // axle in worldspace
 		bool m_isInContact = false;
-		PhysicsBody3D *m_groundObject; //could be general void* ptr
+		PhysicsBody3D *m_groundObject = nullptr; //could be general void* ptr
 	} m_raycastInfo;
 
 	void _update(PhysicsDirectBodyState3D *s);

scene/animation/animation_blend_space_2d.cpp

@@ -437,7 +437,7 @@ float AnimationNodeBlendSpace2D::process(float p_time, bool p_seek) {
 	Vector2 blend_pos = get_parameter(blend_position);
 	int closest = get_parameter(this->closest);
 	float length_internal = get_parameter(this->length_internal);
-	float mind = 0; //time of min distance point
+	float mind = 0.0; //time of min distance point
 
 	if (blend_mode == BLEND_MODE_INTERPOLATED) {
 		if (triangles.size() == 0) {
@@ -529,7 +529,7 @@ float AnimationNodeBlendSpace2D::process(float p_time, bool p_seek) {
 		}
 
 		if (new_closest != closest && new_closest != -1) {
-			float from = 0;
+			float from = 0.0;
 			if (blend_mode == BLEND_MODE_DISCRETE_CARRY && closest != -1) {
 				//see how much animation remains
 				from = blend_node(blend_points[closest].name, blend_points[closest].node, p_time, true, 0.0, FILTER_IGNORE, false) - length_internal;

scene/animation/animation_blend_tree.cpp

@@ -702,7 +702,7 @@ float AnimationNodeTransition::process(float p_time, bool p_seek) {
 		return 0;
 	}
 
-	float rem = 0;
+	float rem = 0.0;
 
 	if (prev < 0) { // process current animation, check for transition
 

scene/animation/animation_node_state_machine.cpp

@@ -393,7 +393,7 @@ float AnimationNodeStateMachinePlayback::process(AnimationNodeStateMachine *p_st
 
 	//find next
 	StringName next;
-	float next_xfade = 0;
+	float next_xfade = 0.0;
 	AnimationNodeStateMachineTransition::SwitchMode switch_mode = AnimationNodeStateMachineTransition::SWITCH_MODE_IMMEDIATE;
 
 	if (path.size()) {

scene/animation/animation_player.cpp

@@ -1132,7 +1132,7 @@ void AnimationPlayer::play(const StringName &p_name, float p_custom_blend, float
 	Playback &c = playback;
 
 	if (c.current.from) {
-		float blend_time = 0;
+		float blend_time = 0.0;
 		// find if it can blend
 		BlendKey bk;
 		bk.from = c.current.from->name;

scene/animation/animation_tree.cpp

@@ -158,7 +158,7 @@ float AnimationNode::blend_input(int p_input, float p_time, bool p_seek, float p
 	Ref<AnimationNode> node = blend_tree->get_node(node_name);
 
 	//inputs.write[p_input].last_pass = state->last_pass;
-	float activity = 0;
+	float activity = 0.0;
 	float ret = _blend_node(node_name, blend_tree->get_node_connection_array(node_name), nullptr, node, p_time, p_seek, p_blend, p_filter, p_optimize, &activity);
 
 	Vector<AnimationTree::Activity> *activity_ptr = state->tree->input_activity_map.getptr(base_path);

scene/animation/tween.cpp

@@ -1098,7 +1098,7 @@ void Tween::seek(real_t p_time) {
 real_t Tween::tell() const {
 	// We want to grab the position of the furthest along tween
 	pending_update++;
-	real_t pos = 0;
+	real_t pos = 0.0;
 
 	// For each interpolation...
 	for (const List<InterpolateData>::Element *E = interpolates.front(); E; E = E->next()) {
@@ -1122,7 +1122,7 @@ real_t Tween::get_runtime() const {
 	pending_update++;
 
 	// For each interpolation...
-	real_t runtime = 0;
+	real_t runtime = 0.0;
 	for (const List<InterpolateData>::Element *E = interpolates.front(); E; E = E->next()) {
 		// Get the tween data and see if it's runtime is greater than the previous tweens
 		const InterpolateData &data = E->get();

scene/gui/base_button.cpp

@@ -448,18 +448,7 @@ void BaseButton::_bind_methods() {
 }
 
 BaseButton::BaseButton() {
-	toggle_mode = false;
-	shortcut_in_tooltip = true;
-	keep_pressed_outside = false;
-	status.pressed = false;
-	status.press_attempt = false;
-	status.hovering = false;
-	status.pressing_inside = false;
-	status.disabled = false;
 	set_focus_mode(FOCUS_ALL);
-	action_mode = ACTION_MODE_BUTTON_RELEASE;
-	button_mask = BUTTON_MASK_LEFT;
-	shortcut_context = ObjectID();
 }
 
 BaseButton::~BaseButton() {

scene/gui/base_button.h

@@ -45,21 +45,21 @@ public:
 	};
 
 private:
-	int button_mask;
+	int button_mask = BUTTON_MASK_LEFT;
-	bool toggle_mode;
+	bool toggle_mode = false;
-	bool shortcut_in_tooltip;
+	bool shortcut_in_tooltip = true;
-	bool keep_pressed_outside;
+	bool keep_pressed_outside = false;
 	Ref<Shortcut> shortcut;
 	ObjectID shortcut_context;
 
-	ActionMode action_mode;
+	ActionMode action_mode = ACTION_MODE_BUTTON_RELEASE;
 	struct Status {
-		bool pressed;
+		bool pressed = false;
-		bool hovering;
+		bool hovering = false;
-		bool press_attempt;
+		bool press_attempt = false;
-		bool pressing_inside;
+		bool pressing_inside = false;
 
-		bool disabled;
+		bool disabled = false;
 
 	} status;
 

scene/gui/box_container.cpp

@@ -33,9 +33,9 @@
 #include "margin_container.h"
 
 struct _MinSizeCache {
-	int min_size;
+	int min_size = 0;
-	bool will_stretch;
+	bool will_stretch = false;
-	int final_size;
+	int final_size = 0;
 };
 
 void BoxContainer::_resort() {
@@ -50,7 +50,7 @@ void BoxContainer::_resort() {
 	int children_count = 0;
 	int stretch_min = 0;
 	int stretch_avail = 0;
-	float stretch_ratio_total = 0;
+	float stretch_ratio_total = 0.0;
 	Map<Control *, _MinSizeCache> min_size_cache;
 
 	for (int i = 0; i < get_child_count(); i++) {
@@ -105,7 +105,7 @@ void BoxContainer::_resort() {
 
 		has_stretched = true;
 		bool refit_successful = true; //assume refit-test will go well
-		float error = 0; // Keep track of accumulated error in pixels
+		float error = 0.0; // Keep track of accumulated error in pixels
 
 		for (int i = 0; i < get_child_count(); i++) {
 			Control *c = Object::cast_to<Control>(get_child(i));
@@ -331,7 +331,6 @@ void BoxContainer::add_spacer(bool p_begin) {
 
 BoxContainer::BoxContainer(bool p_vertical) {
 	vertical = p_vertical;
-	align = ALIGN_BEGIN;
 }
 
 void BoxContainer::_bind_methods() {

scene/gui/box_container.h

@@ -44,8 +44,8 @@ public:
 	};
 
 private:
-	bool vertical;
+	bool vertical = false;
-	AlignMode align;
+	AlignMode align = ALIGN_BEGIN;
 
 	void _resort();
 

scene/gui/button.cpp

@@ -203,7 +203,7 @@ void Button::_notification(int p_what) {
 					color_icon.a = 0.4;
 				}
 
-				float icon_ofs_region = 0;
+				float icon_ofs_region = 0.0;
 				if (rtl) {
 					if (_internal_margin[SIDE_RIGHT] > 0) {
 						icon_ofs_region = _internal_margin[SIDE_RIGHT] + get_theme_constant("hseparation");
@@ -544,16 +544,8 @@ Button::Button(const String &p_text) {
 	text_buf.instance();
 	text_buf->set_flags(TextServer::BREAK_MANDATORY);
 
-	flat = false;
-	clip_text = false;
-	expand_icon = false;
 	set_mouse_filter(MOUSE_FILTER_STOP);
 	set_text(p_text);
-	align = ALIGN_CENTER;
-
-	for (int i = 0; i < 4; i++) {
-		_internal_margin[i] = 0;
-	}
 }
 
 Button::~Button() {

scene/gui/button.h

@@ -45,7 +45,7 @@ public:
 	};
 
 private:
-	bool flat;
+	bool flat = false;
 	String text;
 	String xl_text;
 	Ref<TextParagraph> text_buf;
@@ -55,10 +55,10 @@ private:
 	TextDirection text_direction = TEXT_DIRECTION_AUTO;
 
 	Ref<Texture2D> icon;
-	bool expand_icon;
+	bool expand_icon = false;
-	bool clip_text;
+	bool clip_text = false;
-	TextAlign align;
+	TextAlign align = ALIGN_CENTER;
-	float _internal_margin[4];
+	float _internal_margin[4] = {};
 
 	void _shape();
 

scene/gui/center_container.cpp

@@ -95,6 +95,4 @@ void CenterContainer::_bind_methods() {
 	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "use_top_left"), "set_use_top_left", "is_using_top_left");
 }
 
-CenterContainer::CenterContainer() {
+CenterContainer::CenterContainer() {}
-	use_top_left = false;
-}

scene/gui/center_container.h

@@ -36,7 +36,7 @@
 class CenterContainer : public Container {
 	GDCLASS(CenterContainer, Container);
 
-	bool use_top_left;
+	bool use_top_left = false;
 
 protected:
 	void _notification(int p_what);

scene/gui/color_picker.cpp

@@ -719,17 +719,6 @@ void ColorPicker::_bind_methods() {
 
 ColorPicker::ColorPicker() :
 		BoxContainer(true) {
-	updating = true;
-	edit_alpha = true;
-	text_is_constructor = false;
-	hsv_mode_enabled = false;
-	raw_mode_enabled = false;
-	deferred_mode_enabled = false;
-	changing_color = false;
-	presets_enabled = true;
-	presets_visible = true;
-	screen = nullptr;
-
 	HBoxContainer *hb_edit = memnew(HBoxContainer);
 	add_child(hb_edit);
 	hb_edit->set_v_size_flags(SIZE_EXPAND_FILL);
@@ -1002,12 +991,5 @@ void ColorPickerButton::_bind_methods() {
 }
 
 ColorPickerButton::ColorPickerButton() {
-	// Initialization is now done deferred,
-	// this improves performance in the inspector as the color picker
-	// can be expensive to initialize.
-	picker = nullptr;
-	popup = nullptr;
-	edit_alpha = true;
-
 	set_toggle_mode(true);
 }

scene/gui/color_picker.h

@@ -46,7 +46,7 @@ class ColorPicker : public BoxContainer {
 	GDCLASS(ColorPicker, BoxContainer);
 
 private:
-	Control *screen;
+	Control *screen = nullptr;
 	Control *uv_edit;
 	Control *w_edit;
 	TextureRect *sample;
@@ -64,20 +64,22 @@ private:
 	Label *labels[4];
 	Button *text_type;
 	LineEdit *c_text;
-	bool edit_alpha;
+	bool edit_alpha = true;
 	Size2i ms;
-	bool text_is_constructor;
+	bool text_is_constructor = false;
-	int presets_per_row;
+	int presets_per_row = 0;
 
 	Color color;
-	bool raw_mode_enabled;
+	bool raw_mode_enabled = false;
-	bool hsv_mode_enabled;
+	bool hsv_mode_enabled = false;
-	bool deferred_mode_enabled;
+	bool deferred_mode_enabled = false;
-	bool updating;
+	bool updating = true;
-	bool changing_color;
+	bool changing_color = false;
-	bool presets_enabled;
+	bool presets_enabled = true;
-	bool presets_visible;
+	bool presets_visible = true;
-	float h, s, v;
+	float h = 0.0;
+	float s = 0.0;
+	float v = 0.0;
 	Color last_hsv;
 
 	void _html_entered(const String &p_html);
@@ -139,10 +141,14 @@ public:
 class ColorPickerButton : public Button {
 	GDCLASS(ColorPickerButton, Button);
 
-	PopupPanel *popup;
+	// Initialization is now done deferred,
-	ColorPicker *picker;
+	// this improves performance in the inspector as the color picker
+	// can be expensive to initialize.
+
+	PopupPanel *popup = nullptr;
+	ColorPicker *picker = nullptr;
 	Color color;
-	bool edit_alpha;
+	bool edit_alpha = true;
 
 	void _color_changed(const Color &p_color);
 	void _modal_closed();

scene/gui/container.cpp

@@ -180,7 +180,6 @@ void Container::_bind_methods() {
 }
 
 Container::Container() {
-	pending_sort = false;
 	// All containers should let mouse events pass by default.
 	set_mouse_filter(MOUSE_FILTER_PASS);
 }

scene/gui/container.h

@@ -36,7 +36,7 @@
 class Container : public Control {
 	GDCLASS(Container, Control);
 
-	bool pending_sort;
+	bool pending_sort = false;
 	void _sort_children();
 	void _child_minsize_changed();
 

scene/gui/control.h

@@ -179,13 +179,13 @@ private:
 
 		LayoutDirection layout_dir = LAYOUT_DIRECTION_INHERITED;
 
-		float rotation = 0;
+		float rotation = 0.0;
 		Vector2 scale = Vector2(1, 1);
 		Vector2 pivot_offset;
 
 		int h_size_flags = SIZE_FILL;
 		int v_size_flags = SIZE_FILL;
-		float expand = 1;
+		float expand = 1.0;
 		Point2 custom_minimum_size;
 
 		MouseFilter mouse_filter = MOUSE_FILTER_STOP;

scene/gui/dialogs.cpp

@@ -292,8 +292,6 @@ void AcceptDialog::set_swap_cancel_ok(bool p_swap) {
 }
 
 AcceptDialog::AcceptDialog() {
-	parent_visible = nullptr;
-
 	set_wrap_controls(true);
 	set_visible(false);
 	set_transient(true);
@@ -325,7 +323,6 @@ AcceptDialog::AcceptDialog() {
 
 	ok->connect("pressed", callable_mp(this, &AcceptDialog::_ok_pressed));
 
-	hide_on_ok = true;
 	set_title(RTR("Alert!"));
 
 	connect("window_input", callable_mp(this, &AcceptDialog::_input_from_window));

scene/gui/dialogs.h

@@ -44,12 +44,12 @@ class LineEdit;
 class AcceptDialog : public Window {
 	GDCLASS(AcceptDialog, Window);
 
-	Window *parent_visible;
+	Window *parent_visible = nullptr;
 	Panel *bg;
 	HBoxContainer *hbc;
 	Label *label;
 	Button *ok;
-	bool hide_on_ok;
+	bool hide_on_ok = true;
 
 	void _custom_action(const String &p_action);
 	void _update_child_rects();

scene/gui/file_dialog.cpp

@@ -852,8 +852,6 @@ void FileDialog::set_default_show_hidden_files(bool p_show) {
 FileDialog::FileDialog() {
 	show_hidden_files = default_show_hidden_files;
 
-	mode_overrides_title = true;
-
 	vbox = memnew(VBoxContainer);
 	add_child(vbox);
 	vbox->connect("theme_changed", callable_mp(this, &FileDialog::_theme_changed));
@@ -925,7 +923,6 @@ FileDialog::FileDialog() {
 	vbox->add_child(file_box);
 
 	dir_access = DirAccess::create(DirAccess::ACCESS_RESOURCES);
-	access = ACCESS_RESOURCES;
 	_update_drives();
 
 	connect("confirmed", callable_mp(this, &FileDialog::_action_pressed));
@@ -967,7 +964,6 @@ FileDialog::FileDialog() {
 
 	set_hide_on_ok(false);
 
-	invalidated = true;
 	if (register_func) {
 		register_func(this);
 	}

scene/gui/file_dialog.h

@@ -69,7 +69,7 @@ private:
 	LineEdit *makedirname;
 
 	Button *makedir;
-	Access access;
+	Access access = ACCESS_RESOURCES;
 	//Button *action;
 	VBoxContainer *vbox;
 	FileMode mode;
@@ -93,12 +93,12 @@ private:
 
 	Vector<String> filters;
 
-	bool mode_overrides_title;
+	bool mode_overrides_title = true;
 
 	static bool default_show_hidden_files;
-	bool show_hidden_files;
+	bool show_hidden_files = false;
 
-	bool invalidated;
+	bool invalidated = true;
 
 	void update_dir();
 	void update_file_name();

scene/gui/gradient_edit.cpp

@@ -42,8 +42,6 @@
 #endif
 
 GradientEdit::GradientEdit() {
-	grabbed = -1;
-	grabbing = false;
 	set_focus_mode(FOCUS_ALL);
 
 	popup = memnew(PopupPanel);

scene/gui/gradient_edit.h

@@ -44,8 +44,8 @@ class GradientEdit : public Control {
 
 	Ref<ImageTexture> checker;
 
-	bool grabbing;
+	bool grabbing = false;
-	int grabbed;
+	int grabbed = -1;
 	Vector<Gradient::Point> points;
 
 	void _draw_checker(int x, int y, int w, int h);

scene/gui/graph_edit.cpp

@@ -1657,8 +1657,6 @@ void GraphEdit::_bind_methods() {
 GraphEdit::GraphEdit() {
 	set_focus_mode(FOCUS_ALL);
 
-	awaiting_scroll_offset_update = false;
-	top_layer = nullptr;
 	top_layer = memnew(GraphEditFilter(this));
 	add_child(top_layer);
 	top_layer->set_mouse_filter(MOUSE_FILTER_PASS);
@@ -1681,13 +1679,6 @@ GraphEdit::GraphEdit() {
 	v_scroll->set_name("_v_scroll");
 	top_layer->add_child(v_scroll);
 
-	updating = false;
-	connecting = false;
-	right_disconnects = false;
-
-	box_selecting = false;
-	dragging = false;
-
 	//set large minmax so it can scroll even if not resized yet
 	h_scroll->set_min(-10000);
 	h_scroll->set_max(10000);
@@ -1698,8 +1689,6 @@ GraphEdit::GraphEdit() {
 	h_scroll->connect("value_changed", callable_mp(this, &GraphEdit::_scroll_moved));
 	v_scroll->connect("value_changed", callable_mp(this, &GraphEdit::_scroll_moved));
 
-	zoom = 1;
-
 	zoom_hb = memnew(HBoxContainer);
 	top_layer->add_child(zoom_hb);
 	zoom_hb->set_position(Vector2(10, 10));
@@ -1768,7 +1757,5 @@ GraphEdit::GraphEdit() {
 	minimap->set_offset(Side::SIDE_BOTTOM, -MINIMAP_OFFSET);
 	minimap->connect("draw", callable_mp(this, &GraphEdit::_minimap_draw));
 
-	setting_scroll_ofs = false;
-	just_disconnected = false;
 	set_clip_contents(true);
 }

scene/gui/graph_edit.h

@@ -99,9 +99,9 @@ public:
 	struct Connection {
 		StringName from;
 		StringName to;
-		int from_port;
+		int from_port = 0;
-		int to_port;
+		int to_port = 0;
-		float activity;
+		float activity = 0.0;
 	};
 
 private:
@@ -121,41 +121,41 @@ private:
 	HScrollBar *h_scroll;
 	VScrollBar *v_scroll;
 
-	float port_grab_distance_horizontal;
+	float port_grab_distance_horizontal = 0.0;
 	float port_grab_distance_vertical;
 
-	bool connecting;
+	bool connecting = false;
 	String connecting_from;
-	bool connecting_out;
+	bool connecting_out = false;
-	int connecting_index;
+	int connecting_index = 0;
-	int connecting_type;
+	int connecting_type = 0;
 	Color connecting_color;
-	bool connecting_target;
+	bool connecting_target = false;
 	Vector2 connecting_to;
 	String connecting_target_to;
 	int connecting_target_index;
-	bool just_disconnected;
+	bool just_disconnected = false;
-	bool connecting_valid;
+	bool connecting_valid = false;
 	Vector2 click_pos;
 
-	bool dragging;
+	bool dragging = false;
-	bool just_selected;
+	bool just_selected = false;
-	bool moving_selection;
+	bool moving_selection = false;
 	Vector2 drag_accum;
 
-	float zoom;
+	float zoom = 1.0;
 
-	bool box_selecting;
+	bool box_selecting = false;
-	bool box_selection_mode_additive;
+	bool box_selection_mode_additive = false;
 	Point2 box_selecting_from;
 	Point2 box_selecting_to;
 	Rect2 box_selecting_rect;
 	List<GraphNode *> previus_selected;
 
-	bool setting_scroll_ofs;
+	bool setting_scroll_ofs = false;
-	bool right_disconnects;
+	bool right_disconnects = false;
-	bool updating;
+	bool updating = false;
-	bool awaiting_scroll_offset_update;
+	bool awaiting_scroll_offset_update = false;
 	List<Connection> connections;
 
 	float lines_thickness = 2.0f;
@@ -194,7 +194,7 @@ private:
 				uint32_t type_a;
 				uint32_t type_b;
 			};
-			uint64_t key;
+			uint64_t key = 0;
 		};
 
 		bool operator<(const ConnType &p_type) const {

scene/gui/graph_node.cpp

@@ -850,12 +850,5 @@ void GraphNode::_bind_methods() {
 
 GraphNode::GraphNode() {
 	title_buf.instance();
-	overlay = OVERLAY_DISABLED;
-	show_close = false;
-	connpos_dirty = true;
 	set_mouse_filter(MOUSE_FILTER_STOP);
-	comment = false;
-	resizable = false;
-	resizing = false;
-	selected = false;
 }

scene/gui/graph_node.h

@@ -46,23 +46,14 @@ public:
 
 private:
 	struct Slot {
-		bool enable_left;
+		bool enable_left = false;
-		int type_left;
+		int type_left = 0;
-		Color color_left;
+		Color color_left = Color(1, 1, 1, 1);
-		bool enable_right;
+		bool enable_right = false;
-		int type_right;
+		int type_right = 0;
-		Color color_right;
+		Color color_right = Color(1, 1, 1, 1);
 		Ref<Texture2D> custom_slot_left;
 		Ref<Texture2D> custom_slot_right;
-
-		Slot() {
-			enable_left = false;
-			type_left = 0;
-			color_left = Color(1, 1, 1, 1);
-			enable_right = false;
-			type_right = 0;
-			color_right = Color(1, 1, 1, 1);
-		}
 	};
 
 	String title;
@@ -72,12 +63,12 @@ private:
 	String language;
 	TextDirection text_direction = TEXT_DIRECTION_AUTO;
 
-	bool show_close;
+	bool show_close = false;
 	Vector2 position_offset;
-	bool comment;
+	bool comment = false;
-	bool resizable;
+	bool resizable = false;
 
-	bool resizing;
+	bool resizing = false;
 	Vector2 resizing_from;
 	Vector2 resizing_from_size;
 
@@ -87,7 +78,7 @@ private:
 
 	struct ConnCache {
 		Vector2 pos;
-		int type;
+		int type = 0;
 		Color color;
 	};
 
@@ -96,16 +87,16 @@ private:
 
 	Map<int, Slot> slot_info;
 
-	bool connpos_dirty;
+	bool connpos_dirty = true;
 
 	void _connpos_update();
 	void _resort();
 	void _shape();
 
 	Vector2 drag_from;
-	bool selected;
+	bool selected = false;
 
-	Overlay overlay;
+	Overlay overlay = OVERLAY_DISABLED;
 
 protected:
 	void _gui_input(const Ref<InputEvent> &p_ev);

scene/gui/grid_container.cpp

@@ -261,6 +261,4 @@ Size2 GridContainer::get_minimum_size() const {
 	return ms;
 }
 
-GridContainer::GridContainer() {
+GridContainer::GridContainer() {}
-	columns = 1;
-}

scene/gui/grid_container.h

@@ -36,7 +36,7 @@
 class GridContainer : public Container {
 	GDCLASS(GridContainer, Container);
 
-	int columns;
+	int columns = 1;
 
 protected:
 	void _notification(int p_what);

scene/gui/item_list.cpp

@@ -899,7 +899,7 @@ void ItemList::_notification(int p_what) {
 		}
 
 		if (shape_changed) {
-			float max_column_width = 0;
+			float max_column_width = 0.0;
 
 			//1- compute item minimum sizes
 			for (int i = 0; i < items.size(); i++) {
@@ -1615,34 +1615,12 @@ void ItemList::_bind_methods() {
 }
 
 ItemList::ItemList() {
-	current = -1;
-
-	select_mode = SELECT_SINGLE;
-	icon_mode = ICON_MODE_LEFT;
-
-	fixed_column_width = 0;
-	same_column_width = false;
-	max_text_lines = 1;
-	max_columns = 1;
-	auto_height = false;
-	auto_height_value = 0.0f;
-
 	scroll_bar = memnew(VScrollBar);
 	add_child(scroll_bar);
 
-	shape_changed = true;
 	scroll_bar->connect("value_changed", callable_mp(this, &ItemList::_scroll_changed));
 
 	set_focus_mode(FOCUS_ALL);
-	current_columns = 1;
-	search_time_msec = 0;
-	ensure_selected_visible = false;
-	defer_select_single = -1;
-	allow_rmb_select = false;
-	allow_reselect = false;
-	do_autoscroll_to_bottom = false;
-
-	icon_scale = 1.0f;
 	set_clip_contents(true);
 }
 

scene/gui/item_list.h

@@ -52,7 +52,7 @@ public:
 private:
 	struct Item {
 		Ref<Texture2D> icon;
-		bool icon_transposed;
+		bool icon_transposed = false;
 		Rect2i icon_region;
 		Color icon_modulate;
 		Ref<Texture2D> tag_icon;
@@ -62,10 +62,10 @@ private:
 		String language;
 		TextDirection text_direction = TEXT_DIRECTION_AUTO;
 
-		bool selectable;
+		bool selectable = false;
-		bool selected;
+		bool selected = false;
-		bool disabled;
+		bool disabled = false;
-		bool tooltip_enabled;
+		bool tooltip_enabled = false;
 		Variant metadata;
 		String tooltip;
 		Color custom_fg;
@@ -79,44 +79,44 @@ private:
 		bool operator<(const Item &p_another) const { return text < p_another.text; }
 	};
 
-	int current;
+	int current = -1;
 
-	bool shape_changed;
+	bool shape_changed = true;
 
-	bool ensure_selected_visible;
+	bool ensure_selected_visible = false;
-	bool same_column_width;
+	bool same_column_width = false;
 
-	bool auto_height;
+	bool auto_height = false;
-	float auto_height_value;
+	float auto_height_value = 0.0;
 
 	Vector<Item> items;
 	Vector<int> separators;
 
-	SelectMode select_mode;
+	SelectMode select_mode = SELECT_SINGLE;
-	IconMode icon_mode;
+	IconMode icon_mode = ICON_MODE_LEFT;
 	VScrollBar *scroll_bar;
 
-	uint64_t search_time_msec;
+	uint64_t search_time_msec = 0;
 	String search_string;
 
-	int current_columns;
+	int current_columns = 1;
-	int fixed_column_width;
+	int fixed_column_width = 0;
-	int max_text_lines;
+	int max_text_lines = 1;
-	int max_columns;
+	int max_columns = 1;
 
 	Size2 fixed_icon_size;
 
 	Size2 max_item_size_cache;
 
-	int defer_select_single;
+	int defer_select_single = -1;
 
-	bool allow_rmb_select;
+	bool allow_rmb_select = false;
 
-	bool allow_reselect;
+	bool allow_reselect = false;
 
-	real_t icon_scale;
+	real_t icon_scale = 1.0;
 
-	bool do_autoscroll_to_bottom;
+	bool do_autoscroll_to_bottom = false;
 
 	Array _get_items() const;
 	void _set_items(const Array &p_items);

scene/gui/label.cpp

@@ -194,7 +194,7 @@ void Label::_notification(int p_what) {
 
 		style->draw(ci, Rect2(Point2(0, 0), get_size()));
 
-		float total_h = 0;
+		float total_h = 0.0;
 		int lines_visible = 0;
 
 		// Get number of lines to fit to the height.
@@ -391,7 +391,7 @@ int Label::get_visible_line_count() const {
 	Ref<StyleBox> style = get_theme_stylebox("normal");
 	int line_spacing = get_theme_constant("line_spacing");
 	int lines_visible = 0;
-	float total_h = 0;
+	float total_h = 0.0;
 	for (int64_t i = lines_skipped; i < lines_rid.size(); i++) {
 		total_h += TS->shaped_text_get_size(lines_rid[i]).y + font->get_spacing(Font::SPACING_TOP) + font->get_spacing(Font::SPACING_BOTTOM) + line_spacing;
 		if (total_h > (get_size().height - style->get_minimum_size().height + line_spacing)) {

scene/gui/label.h

@@ -72,7 +72,7 @@ private:
 	Control::StructuredTextParser st_parser = STRUCTURED_TEXT_DEFAULT;
 	Array st_args;
 
-	float percent_visible = 1;
+	float percent_visible = 1.0;
 
 	int visible_chars = -1;
 	int lines_skipped = 0;

scene/gui/line_edit.cpp

@@ -2264,9 +2264,6 @@ LineEdit::LineEdit() {
 	text_rid = TS->create_shaped_text();
 	_create_undo_state();
 
-	clear_button_status.press_attempt = false;
-	clear_button_status.pressing_inside = false;
-
 	deselect();
 	set_focus_mode(FOCUS_ALL);
 	set_default_cursor_shape(CURSOR_IBEAM);

scene/gui/line_edit.h

@@ -94,7 +94,7 @@ private:
 	Point2 ime_selection;
 
 	RID text_rid;
-	float full_width = 0;
+	float full_width = 0.0;
 
 	bool selecting_enabled = true;
 
@@ -129,19 +129,19 @@ private:
 	Ref<Texture2D> right_icon;
 
 	struct Selection {
-		int begin;
+		int begin = 0;
-		int end;
+		int end = 0;
-		int cursor_start;
+		int cursor_start = 0;
-		bool enabled;
+		bool enabled = false;
-		bool creating;
+		bool creating = false;
-		bool doubleclick;
+		bool doubleclick = false;
-		bool drag_attempt;
+		bool drag_attempt = false;
 	} selection;
 
 	struct TextOperation {
-		int cursor_pos;
+		int cursor_pos = 0;
-		int scroll_offset;
+		int scroll_offset = 0;
-		int cached_width;
+		int cached_width = 0;
 		String text;
 	};
 	List<TextOperation> undo_stack;

scene/gui/link_button.cpp

@@ -294,7 +294,6 @@ void LinkButton::_bind_methods() {
 
 LinkButton::LinkButton() {
 	text_buf.instance();
-	underline_mode = UNDERLINE_MODE_ALWAYS;
 	set_focus_mode(FOCUS_NONE);
 	set_default_cursor_shape(CURSOR_POINTING_HAND);
 }

scene/gui/link_button.h

@@ -48,7 +48,7 @@ public:
 private:
 	String text;
 	Ref<TextLine> text_buf;
-	UnderlineMode underline_mode;
+	UnderlineMode underline_mode = UNDERLINE_MODE_ALWAYS;
 
 	Dictionary opentype_features;
 	String language;

scene/gui/menu_button.cpp

@@ -118,7 +118,6 @@ void MenuButton::set_disable_shortcuts(bool p_disabled) {
 }
 
 MenuButton::MenuButton() {
-	switch_on_hover = false;
 	set_flat(true);
 	set_toggle_mode(true);
 	set_disable_shortcuts(false);

scene/gui/menu_button.h

@@ -37,9 +37,9 @@
 class MenuButton : public Button {
 	GDCLASS(MenuButton, Button);
 
-	bool clicked;
+	bool clicked = false;
-	bool switch_on_hover;
+	bool switch_on_hover = false;
-	bool disable_shortcuts;
+	bool disable_shortcuts = false;
 	PopupMenu *popup;
 
 	Array _get_items() const;

scene/gui/nine_patch_rect.cpp

@@ -174,16 +174,7 @@ NinePatchRect::AxisStretchMode NinePatchRect::get_v_axis_stretch_mode() const {
 }
 
 NinePatchRect::NinePatchRect() {
-	margin[SIDE_LEFT] = 0;
-	margin[SIDE_RIGHT] = 0;
-	margin[SIDE_BOTTOM] = 0;
-	margin[SIDE_TOP] = 0;
-
 	set_mouse_filter(MOUSE_FILTER_IGNORE);
-	draw_center = true;
-
-	axis_h = AXIS_STRETCH_MODE_STRETCH;
-	axis_v = AXIS_STRETCH_MODE_STRETCH;
 }
 
 NinePatchRect::~NinePatchRect() {

scene/gui/nine_patch_rect.h

@@ -43,12 +43,13 @@ public:
 		AXIS_STRETCH_MODE_TILE_FIT,
 	};
 
-	bool draw_center;
+	bool draw_center = true;
-	int margin[4];
+	int margin[4] = {};
 	Rect2 region_rect;
 	Ref<Texture2D> texture;
 
-	AxisStretchMode axis_h, axis_v;
+	AxisStretchMode axis_h = AXIS_STRETCH_MODE_STRETCH;
+	AxisStretchMode axis_v = AXIS_STRETCH_MODE_STRETCH;
 
 protected:
 	void _notification(int p_what);

scene/gui/option_button.cpp

@@ -336,7 +336,6 @@ void OptionButton::_bind_methods() {
 }
 
 OptionButton::OptionButton() {
-	current = -1;
 	set_toggle_mode(true);
 	set_text_align(ALIGN_LEFT);
 	if (is_layout_rtl()) {

scene/gui/option_button.h

@@ -38,7 +38,7 @@ class OptionButton : public Button {
 	GDCLASS(OptionButton, Button);
 
 	PopupMenu *popup;
-	int current;
+	int current = -1;
 
 	void _focused(int p_which);
 	void _selected(int p_which);

scene/gui/popup_menu.cpp

@@ -52,8 +52,8 @@ Size2 PopupMenu::_get_contents_minimum_size() const {
 	Size2 minsize = get_theme_stylebox("panel")->get_minimum_size(); // Accounts for margin in the margin container
 	minsize.x += scroll_container->get_v_scrollbar()->get_size().width * 2; // Adds a buffer so that the scrollbar does not render over the top of content
 
-	float max_w = 0;
+	float max_w = 0.0;
-	float icon_w = 0;
+	float icon_w = 0.0;
 	int check_w = MAX(get_theme_icon("checked")->get_width(), get_theme_icon("radio_checked")->get_width()) + hseparation;
 	int accel_max_w = 0;
 	bool has_check = false;
@@ -1656,19 +1656,6 @@ PopupMenu::PopupMenu() {
 
 	connect("window_input", callable_mp(this, &PopupMenu::_gui_input));
 
-	mouse_over = -1;
-	submenu_over = -1;
-	initial_button_mask = 0;
-	during_grabbed_click = false;
-
-	allow_search = true;
-	search_time_msec = 0;
-	search_string = "";
-
-	set_hide_on_item_selection(true);
-	set_hide_on_checkable_item_selection(true);
-	set_hide_on_multistate_item_selection(false);
-
 	submenu_timer = memnew(Timer);
 	submenu_timer->set_wait_time(0.3);
 	submenu_timer->set_one_shot(true);

scene/gui/popup_menu.h

@@ -51,28 +51,28 @@ class PopupMenu : public Popup {
 		String language;
 		Control::TextDirection text_direction = Control::TEXT_DIRECTION_AUTO;
 
-		bool checked;
+		bool checked = false;
 		enum {
 			CHECKABLE_TYPE_NONE,
 			CHECKABLE_TYPE_CHECK_BOX,
 			CHECKABLE_TYPE_RADIO_BUTTON,
 		} checkable_type;
-		int max_states;
+		int max_states = 0;
-		int state;
+		int state = 0;
-		bool separator;
+		bool separator = false;
-		bool disabled;
+		bool disabled = false;
-		bool dirty;
+		bool dirty = true;
-		int id;
+		int id = 0;
 		Variant metadata;
 		String submenu;
 		String tooltip;
-		uint32_t accel;
+		uint32_t accel = 0;
-		int _ofs_cache;
+		int _ofs_cache = 0;
-		int _height_cache;
+		int _height_cache = 0;
-		int h_ofs;
+		int h_ofs = 0;
 		Ref<Shortcut> shortcut;
-		bool shortcut_is_global;
+		bool shortcut_is_global = false;
-		bool shortcut_is_disabled;
+		bool shortcut_is_disabled = false;
 
 		// Returns (0,0) if icon is null.
 		Size2 get_icon_size() const {
@@ -82,19 +82,7 @@ class PopupMenu : public Popup {
 		Item() {
 			text_buf.instance();
 			accel_text_buf.instance();
-			dirty = true;
-			checked = false;
 			checkable_type = CHECKABLE_TYPE_NONE;
-			separator = false;
-			max_states = 0;
-			state = 0;
-			accel = 0;
-			disabled = false;
-			_ofs_cache = 0;
-			_height_cache = 0;
-			h_ofs = 0;
-			shortcut_is_global = false;
-			shortcut_is_disabled = false;
 		}
 	};
 
@@ -104,10 +92,10 @@ class PopupMenu : public Popup {
 	Timer *submenu_timer;
 	List<Rect2> autohide_areas;
 	Vector<Item> items;
-	int initial_button_mask;
+	int initial_button_mask = 0;
-	bool during_grabbed_click;
+	bool during_grabbed_click = false;
-	int mouse_over;
+	int mouse_over = -1;
-	int submenu_over;
+	int submenu_over = -1;
 	Rect2 parent_rect;
 	String _get_accel_text(const Item &p_item) const;
 	int _get_mouse_over(const Point2 &p_over) const;
@@ -123,9 +111,9 @@ class PopupMenu : public Popup {
 	void _submenu_timeout();
 
 	uint64_t popup_time_msec = 0;
-	bool hide_on_item_selection;
+	bool hide_on_item_selection = true;
-	bool hide_on_checkable_item_selection;
+	bool hide_on_checkable_item_selection = true;
-	bool hide_on_multistate_item_selection;
+	bool hide_on_multistate_item_selection = false;
 	Vector2 moved;
 
 	Array _get_items() const;
@@ -136,9 +124,9 @@ class PopupMenu : public Popup {
 	void _ref_shortcut(Ref<Shortcut> p_sc);
 	void _unref_shortcut(Ref<Shortcut> p_sc);
 
-	bool allow_search;
+	bool allow_search = true;
-	uint64_t search_time_msec;
+	uint64_t search_time_msec = 0;
-	String search_string;
+	String search_string = "";
 
 	MarginContainer *margin_container;
 	ScrollContainer *scroll_container;

scene/gui/progress_bar.cpp

@@ -98,5 +98,4 @@ void ProgressBar::_bind_methods() {
 ProgressBar::ProgressBar() {
 	set_v_size_flags(0);
 	set_step(0.01);
-	percent_visible = true;
 }

scene/gui/progress_bar.h

@@ -36,7 +36,7 @@
 class ProgressBar : public Range {
 	GDCLASS(ProgressBar, Range);
 
-	bool percent_visible;
+	bool percent_visible = true;
 
 protected:
 	void _notification(int p_what);

scene/gui/range.cpp

@@ -314,17 +314,7 @@ bool Range::is_lesser_allowed() const {
 
 Range::Range() {
 	shared = memnew(Shared);
-	shared->min = 0;
-	shared->max = 100;
-	shared->val = 0;
-	shared->step = 1;
-	shared->page = 0;
 	shared->owners.insert(this);
-	shared->exp_ratio = false;
-	shared->allow_greater = false;
-	shared->allow_lesser = false;
-
-	_rounded_values = false;
 }
 
 Range::~Range() {

scene/gui/range.h

@@ -37,11 +37,14 @@ class Range : public Control {
 	GDCLASS(Range, Control);
 
 	struct Shared {
-		double val, min, max;
+		double val = 0.0;
-		double step, page;
+		double min = 0.0;
-		bool exp_ratio;
+		double max = 100.0;
-		bool allow_greater;
+		double step = 1.0;
-		bool allow_lesser;
+		double page = 0.0;
+		bool exp_ratio = false;
+		bool allow_greater = false;
+		bool allow_lesser = false;
 		Set<Range *> owners;
 		void emit_value_changed();
 		void emit_changed(const char *p_what = "");
@@ -62,7 +65,7 @@ protected:
 
 	static void _bind_methods();
 
-	bool _rounded_values;
+	bool _rounded_values = false;
 
 public:
 	void set_value(double p_val);

scene/gui/rich_text_label.cpp

@@ -314,7 +314,7 @@ void RichTextLabel::_resize_line(ItemFrame *p_frame, int p_line, const Ref<Font>
 				table->rows.clear();
 
 				Vector2 offset;
-				float row_height = 0;
+				float row_height = 0.0;
 
 				for (List<Item *>::Element *E = table->subitems.front(); E; E = E->next()) {
 					ERR_CONTINUE(E->get()->type != ITEM_FRAME); // Children should all be frames.
@@ -553,7 +553,7 @@ void RichTextLabel::_shape_line(ItemFrame *p_frame, int p_line, const Ref<Font>
 				table->rows.clear();
 
 				Vector2 offset;
-				float row_height = 0;
+				float row_height = 0.0;
 
 				for (List<Item *>::Element *E = table->subitems.front(); E; E = E->next()) {
 					ERR_CONTINUE(E->get()->type != ITEM_FRAME); // Children should all be frames.
@@ -1847,7 +1847,7 @@ int RichTextLabel::_find_list(Item *p_item, Vector<int> &r_index, Vector<ItemLis
 int RichTextLabel::_find_margin(Item *p_item, const Ref<Font> &p_base_font, int p_base_font_size) {
 	Item *item = p_item;
 
-	float margin = 0;
+	float margin = 0.0;
 
 	while (item) {
 		if (item->type == ITEM_INDENT) {
@@ -4066,19 +4066,6 @@ RichTextLabel::RichTextLabel() {
 	main->first_invalid_line = 0;
 	main->first_resized_line = 0;
 	current_frame = main;
-	tab_size = 4;
-	default_align = ALIGN_LEFT;
-	underline_meta = true;
-	meta_hovering = nullptr;
-	override_selected_font_color = false;
-
-	scroll_visible = false;
-	scroll_follow = false;
-	scroll_following = false;
-	updating_scroll = false;
-	scroll_active = true;
-	scroll_w = 0;
-	scroll_updated = false;
 
 	vscroll = memnew(VScrollBar);
 	add_child(vscroll);
@@ -4090,19 +4077,6 @@ RichTextLabel::RichTextLabel() {
 	vscroll->connect("value_changed", callable_mp(this, &RichTextLabel::_scroll_changed));
 	vscroll->set_step(1);
 	vscroll->hide();
-	use_bbcode = false;
-
-	selection.click_frame = nullptr;
-	selection.click_item = nullptr;
-	selection.active = false;
-	selection.enabled = false;
-
-	visible_characters = -1;
-	percent_visible = 1;
-	visible_line_count = 0;
-
-	fixed_width = -1;
-	fit_content_height = false;
 
 	set_clip_contents(true);
 }

scene/gui/rich_text_label.h

@@ -147,9 +147,9 @@ private:
 	struct ItemDropcap : public Item {
 		String text;
 		Ref<Font> font;
-		int font_size;
+		int font_size = 0;
 		Color color;
-		int ol_size;
+		int ol_size = 0;
 		Color ol_color;
 		Rect2 dropcap_margins;
 		ItemDropcap() { type = ITEM_DROPCAP; }
@@ -232,11 +232,11 @@ private:
 
 	struct ItemTable : public Item {
 		struct Column {
-			bool expand;
+			bool expand = false;
-			int expand_ratio;
+			int expand_ratio = 0;
-			int min_width;
+			int min_width = 0;
-			int max_width;
+			int max_width = 0;
-			int width;
+			int width = 0;
 		};
 
 		Vector<Column> columns;
@@ -322,31 +322,31 @@ private:
 		}
 	};
 
-	ItemFrame *main;
+	ItemFrame *main = nullptr;
-	Item *current;
+	Item *current = nullptr;
-	ItemFrame *current_frame;
+	ItemFrame *current_frame = nullptr;
 
-	VScrollBar *vscroll;
+	VScrollBar *vscroll = nullptr;
 
-	bool scroll_visible;
+	bool scroll_visible = false;
-	bool scroll_follow;
+	bool scroll_follow = false;
-	bool scroll_following;
+	bool scroll_following = false;
-	bool scroll_active;
+	bool scroll_active = true;
-	int scroll_w;
+	int scroll_w = 0;
-	bool scroll_updated;
+	bool scroll_updated = false;
-	bool updating_scroll;
+	bool updating_scroll = false;
 	int current_idx = 1;
 	int current_char_ofs = 0;
-	int visible_paragraph_count;
+	int visible_paragraph_count = 0;
-	int visible_line_count;
+	int visible_line_count = 0;
 
-	int tab_size;
+	int tab_size = 4;
-	bool underline_meta;
+	bool underline_meta = true;
-	bool override_selected_font_color;
+	bool override_selected_font_color = false;
 
-	Align default_align;
+	Align default_align = ALIGN_LEFT;
 
-	ItemMeta *meta_hovering;
+	ItemMeta *meta_hovering = nullptr;
 	Variant current_meta;
 
 	Vector<Ref<RichTextEffect>> custom_effects;
@@ -363,29 +363,29 @@ private:
 	Array st_args;
 
 	struct Selection {
-		ItemFrame *click_frame;
+		ItemFrame *click_frame = nullptr;
-		int click_line;
+		int click_line = 0;
-		Item *click_item;
+		Item *click_item = nullptr;
-		int click_char;
+		int click_char = 0;
 
-		ItemFrame *from_frame;
+		ItemFrame *from_frame = nullptr;
-		int from_line;
+		int from_line = 0;
-		Item *from_item;
+		Item *from_item = nullptr;
-		int from_char;
+		int from_char = 0;
 
-		ItemFrame *to_frame;
+		ItemFrame *to_frame = nullptr;
-		int to_line;
+		int to_line = 0;
-		Item *to_item;
+		Item *to_item = nullptr;
-		int to_char;
+		int to_char = 0;
 
-		bool active; // anything selected? i.e. from, to, etc. valid?
+		bool active = false; // anything selected? i.e. from, to, etc. valid?
-		bool enabled; // allow selections?
+		bool enabled = false; // allow selections?
 	};
 
 	Selection selection;
 
-	int visible_characters;
+	int visible_characters = -1;
-	float percent_visible;
+	float percent_visible = 1.0;
 
 	void _find_click(ItemFrame *p_frame, const Point2i &p_click, ItemFrame **r_click_frame = nullptr, int *r_click_line = nullptr, Item **r_click_item = nullptr, int *r_click_char = nullptr, bool *r_outside = nullptr);
 
@@ -434,12 +434,12 @@ private:
 	Ref<RichTextEffect> _get_custom_effect_by_code(String p_bbcode_identifier);
 	virtual Dictionary parse_expressions_for_values(Vector<String> p_expressions);
 
-	bool use_bbcode;
+	bool use_bbcode = false;
 	String bbcode;
 
-	int fixed_width;
+	int fixed_width = -1;
 
-	bool fit_content_height;
+	bool fit_content_height = false;
 
 protected:
 	void _notification(int p_what);

scene/gui/scroll_bar.cpp

@@ -434,7 +434,7 @@ double ScrollBar::get_area_size() const {
 }
 
 double ScrollBar::get_area_offset() const {
-	double ofs = 0;
+	double ofs = 0.0;
 
 	if (orientation == VERTICAL) {
 		ofs += get_theme_stylebox("hscroll")->get_margin(SIDE_TOP);

scene/gui/scroll_bar.h

@@ -47,14 +47,14 @@ class ScrollBar : public Range {
 
 	Orientation orientation;
 	Size2 size;
-	float custom_step = -1;
+	float custom_step = -1.0;
 
 	HighlightStatus highlight = HIGHLIGHT_NONE;
 
 	struct Drag {
 		bool active = false;
-		float pos_at_click = 0;
+		float pos_at_click = 0.0;
-		float value_at_click = 0;
+		float value_at_click = 0.0;
 	} drag;
 
 	double get_grabber_size() const;
@@ -73,14 +73,14 @@ class ScrollBar : public Range {
 	Vector2 drag_node_accum;
 	Vector2 drag_node_from;
 	Vector2 last_drag_node_accum;
-	float last_drag_node_time;
+	float last_drag_node_time = 0.0;
-	float time_since_motion;
+	float time_since_motion = 0.0;
 	bool drag_node_touching = false;
 	bool drag_node_touching_deaccel = false;
-	bool click_handled;
+	bool click_handled = false;
 
 	bool scrolling = false;
-	double target_scroll = 0;
+	double target_scroll = 0.0;
 	bool smooth_scroll_enabled = false;
 
 	void _drag_node_exit();

scene/gui/scroll_container.cpp

@@ -244,11 +244,11 @@ void ScrollContainer::_ensure_focused_visible(Control *p_control) {
 	if (is_a_parent_of(p_control)) {
 		Rect2 global_rect = get_global_rect();
 		Rect2 other_rect = p_control->get_global_rect();
-		float right_margin = 0;
+		float right_margin = 0.0;
 		if (v_scroll->is_visible()) {
 			right_margin += v_scroll->get_size().x;
 		}
-		float bottom_margin = 0;
+		float bottom_margin = 0.0;
 		if (h_scroll->is_visible()) {
 			bottom_margin += h_scroll->get_size().y;
 		}
@@ -624,15 +624,7 @@ ScrollContainer::ScrollContainer() {
 	add_child(v_scroll);
 	v_scroll->connect("value_changed", callable_mp(this, &ScrollContainer::_scroll_moved));
 
-	drag_speed = Vector2();
-	drag_touching = false;
-	drag_touching_deaccel = false;
-	beyond_deadzone = false;
-	scroll_h = true;
-	scroll_v = true;
-
 	deadzone = GLOBAL_GET("gui/common/default_scroll_deadzone");
-	follow_focus = false;
 
 	set_clip_contents(true);
 };

scene/gui/scroll_container.h

@@ -50,18 +50,18 @@ class ScrollContainer : public Container {
 	Vector2 drag_accum;
 	Vector2 drag_from;
 	Vector2 last_drag_accum;
-	float last_drag_time;
+	float last_drag_time = 0.0;
-	float time_since_motion;
+	float time_since_motion = 0.0;
-	bool drag_touching;
+	bool drag_touching = false;
-	bool drag_touching_deaccel;
+	bool drag_touching_deaccel = false;
-	bool click_handled;
+	bool click_handled = false;
-	bool beyond_deadzone;
+	bool beyond_deadzone = false;
 
-	bool scroll_h;
+	bool scroll_h = true;
-	bool scroll_v;
+	bool scroll_v = true;
 
-	int deadzone;
+	int deadzone = 0;
-	bool follow_focus;
+	bool follow_focus = false;
 
 	void _cancel_drag();
 

scene/gui/separator.h

@@ -36,7 +36,7 @@ class Separator : public Control {
 	GDCLASS(Separator, Control);
 
 protected:
-	Orientation orientation;
+	Orientation orientation = Orientation::HORIZONTAL;
 	void _notification(int p_what);
 
 public:

scene/gui/slider.cpp

@@ -269,12 +269,5 @@ void Slider::_bind_methods() {
 
 Slider::Slider(Orientation p_orientation) {
 	orientation = p_orientation;
-	mouse_inside = false;
-	grab.active = false;
-	ticks = 0;
-	ticks_on_borders = false;
-	custom_step = -1;
-	editable = true;
-	scrollable = true;
 	set_focus_mode(FOCUS_ALL);
 }

scene/gui/slider.h

@@ -37,23 +37,23 @@ class Slider : public Range {
 	GDCLASS(Slider, Range);
 
 	struct Grab {
-		int pos;
+		int pos = 0;
-		float uvalue;
+		float uvalue = 0.0;
-		bool active;
+		bool active = false;
 	} grab;
 
-	int ticks;
+	int ticks = 0;
-	bool mouse_inside;
+	bool mouse_inside = false;
 	Orientation orientation;
-	float custom_step;
+	float custom_step = -1.0;
-	bool editable;
+	bool editable = true;
-	bool scrollable;
+	bool scrollable = true;
 
 protected:
 	void _gui_input(Ref<InputEvent> p_event);
 	void _notification(int p_what);
 	static void _bind_methods();
-	bool ticks_on_borders;
+	bool ticks_on_borders = false;
 
 public:
 	virtual Size2 get_minimum_size() const override;

scene/gui/spin_box.cpp

@@ -268,7 +268,6 @@ void SpinBox::_bind_methods() {
 }
 
 SpinBox::SpinBox() {
-	last_w = 0;
 	line_edit = memnew(LineEdit);
 	add_child(line_edit);
 

scene/gui/spin_box.h

@@ -39,7 +39,7 @@ class SpinBox : public Range {
 	GDCLASS(SpinBox, Range);
 
 	LineEdit *line_edit;
-	int last_w;
+	int last_w = 0;
 
 	Timer *range_click_timer;
 	void _range_click_timeout();
@@ -52,11 +52,11 @@ class SpinBox : public Range {
 	void _line_edit_input(const Ref<InputEvent> &p_event);
 
 	struct Drag {
-		float base_val = 0;
+		float base_val = 0.0;
 		bool allowed = false;
 		bool enabled = false;
 		Vector2 capture_pos;
-		float diff_y = 0;
+		float diff_y = 0.0;
 	} drag;
 
 	void _line_edit_focus_exit();

scene/gui/split_container.cpp

@@ -359,12 +359,5 @@ void SplitContainer::_bind_methods() {
 }
 
 SplitContainer::SplitContainer(bool p_vertical) {
-	mouse_inside = false;
-	split_offset = 0;
-	should_clamp_split_offset = false;
-	middle_sep = 0;
 	vertical = p_vertical;
-	dragging = false;
-	collapsed = false;
-	dragger_visibility = DRAGGER_VISIBLE;
 }

scene/gui/split_container.h

@@ -44,16 +44,16 @@ public:
 	};
 
 private:
-	bool should_clamp_split_offset;
+	bool should_clamp_split_offset = false;
-	int split_offset;
+	int split_offset = 0;
-	int middle_sep;
+	int middle_sep = 0;
-	bool vertical;
+	bool vertical = false;
-	bool dragging;
+	bool dragging = false;
-	int drag_from;
+	int drag_from = 0;
-	int drag_ofs;
+	int drag_ofs = 0;
-	bool collapsed;
+	bool collapsed = false;
-	DraggerVisibility dragger_visibility;
+	DraggerVisibility dragger_visibility = DRAGGER_VISIBLE;
-	bool mouse_inside;
+	bool mouse_inside = false;
 
 	Control *_getch(int p_idx) const;
 

scene/gui/subviewport_container.cpp

@@ -203,8 +203,6 @@ void SubViewportContainer::_bind_methods() {
 }
 
 SubViewportContainer::SubViewportContainer() {
-	stretch = false;
-	shrink = 1;
 	set_process_input(true);
 	set_process_unhandled_input(true);
 }

scene/gui/subviewport_container.h

@@ -36,8 +36,8 @@
 class SubViewportContainer : public Container {
 	GDCLASS(SubViewportContainer, Container);
 
-	bool stretch;
+	bool stretch = false;
-	int shrink;
+	int shrink = 1;
 
 protected:
 	void _notification(int p_what);

scene/gui/tab_container.cpp

@@ -1243,20 +1243,5 @@ void TabContainer::_bind_methods() {
 }
 
 TabContainer::TabContainer() {
-	first_tab_cache = 0;
-	last_tab_cache = 0;
-	buttons_visible_cache = false;
-	menu_hovered = false;
-	highlight_arrow = -1;
-	tabs_ofs_cache = 0;
-	current = 0;
-	previous = 0;
-	align = ALIGN_CENTER;
-	tabs_visible = true;
-	all_tabs_in_front = false;
-	drag_to_rearrange_enabled = false;
-	tabs_rearrange_group = -1;
-	use_hidden_tabs_for_min_size = false;
-
 	connect("mouse_exited", callable_mp(this, &TabContainer::_on_mouse_exited));
 }

scene/gui/tab_container.h

@@ -46,23 +46,23 @@ public:
 	};
 
 private:
-	int first_tab_cache;
+	int first_tab_cache = 0;
-	int tabs_ofs_cache;
+	int tabs_ofs_cache = 0;
-	int last_tab_cache;
+	int last_tab_cache = 0;
-	int current;
+	int current = 0;
-	int previous;
+	int previous = 0;
-	bool tabs_visible;
+	bool tabs_visible = true;
-	bool all_tabs_in_front;
+	bool all_tabs_in_front = false;
-	bool buttons_visible_cache;
+	bool buttons_visible_cache = false;
-	bool menu_hovered;
+	bool menu_hovered = false;
-	int highlight_arrow;
+	int highlight_arrow = -1;
-	TabAlign align;
+	TabAlign align = ALIGN_CENTER;
 	Control *_get_tab(int p_idx) const;
 	int _get_top_margin() const;
 	mutable ObjectID popup_obj_id;
-	bool drag_to_rearrange_enabled;
+	bool drag_to_rearrange_enabled = false;
-	bool use_hidden_tabs_for_min_size;
+	bool use_hidden_tabs_for_min_size = false;
-	int tabs_rearrange_group;
+	int tabs_rearrange_group = -1;
 
 	Vector<Ref<TextLine>> text_buf;
 	Vector<Control *> _get_tabs() const;

scene/gui/tabs.cpp

@@ -1137,27 +1137,5 @@ void Tabs::_bind_methods() {
 }
 
 Tabs::Tabs() {
-	current = 0;
-	previous = 0;
-	tab_align = ALIGN_CENTER;
-	rb_hover = -1;
-	rb_pressing = false;
-	highlight_arrow = -1;
-
-	cb_hover = -1;
-	cb_pressing = false;
-	cb_displaypolicy = CLOSE_BUTTON_SHOW_NEVER;
-	offset = 0;
-	max_drawn_tab = 0;
-
-	select_with_rmb = false;
-
-	min_width = 0;
-	scrolling_enabled = true;
-	buttons_visible = false;
-	hover = -1;
-	drag_to_rearrange_enabled = false;
-	tabs_rearrange_group = -1;
-
 	connect("mouse_exited", callable_mp(this, &Tabs::_on_mouse_exited));
 }

scene/gui/tabs.h

@@ -63,42 +63,42 @@ private:
 
 		Ref<TextLine> text_buf;
 		Ref<Texture2D> icon;
-		int ofs_cache;
+		int ofs_cache = 0;
-		bool disabled;
+		bool disabled = false;
-		int size_cache;
+		int size_cache = 0;
-		int size_text;
+		int size_text = 0;
-		int x_cache;
+		int x_cache = 0;
-		int x_size_cache;
+		int x_size_cache = 0;
 
 		Ref<Texture2D> right_button;
 		Rect2 rb_rect;
 		Rect2 cb_rect;
 	};
 
-	int offset;
+	int offset = 0;
-	int max_drawn_tab;
+	int max_drawn_tab = 0;
-	int highlight_arrow;
+	int highlight_arrow = -1;
-	bool buttons_visible;
+	bool buttons_visible = false;
-	bool missing_right;
+	bool missing_right = false;
 	Vector<Tab> tabs;
-	int current;
+	int current = 0;
-	int previous;
+	int previous = 0;
 	int _get_top_margin() const;
-	TabAlign tab_align;
+	TabAlign tab_align = ALIGN_CENTER;
-	int rb_hover;
+	int rb_hover = -1;
-	bool rb_pressing;
+	bool rb_pressing = false;
 
-	bool select_with_rmb;
+	bool select_with_rmb = false;
 
-	int cb_hover;
+	int cb_hover = -1;
-	bool cb_pressing;
+	bool cb_pressing = false;
-	CloseButtonDisplayPolicy cb_displaypolicy;
+	CloseButtonDisplayPolicy cb_displaypolicy = CLOSE_BUTTON_SHOW_NEVER;
 
-	int hover; // Hovered tab.
+	int hover = -1; // Hovered tab.
-	int min_width;
+	int min_width = 0;
-	bool scrolling_enabled;
+	bool scrolling_enabled = true;
-	bool drag_to_rearrange_enabled;
+	bool drag_to_rearrange_enabled = false;
-	int tabs_rearrange_group;
+	int tabs_rearrange_group = -1;
 
 	int get_tab_width(int p_idx) const;
 	void _ensure_no_over_offset();

scene/gui/text_edit.cpp

@@ -6128,7 +6128,7 @@ double TextEdit::get_scroll_pos_for_line(int p_line, int p_wrap_index) const {
 	}
 
 	// Count the number of visible lines up to this line.
-	double new_line_scroll_pos = 0;
+	double new_line_scroll_pos = 0.0;
 	int to = CLAMP(p_line, 0, text.size() - 1);
 	for (int i = 0; i < to; i++) {
 		if (!text.is_hidden(i)) {
@@ -7205,23 +7205,11 @@ void TextEdit::_bind_methods() {
 }
 
 TextEdit::TextEdit() {
-	setting_row = false;
-	draw_tabs = false;
-	draw_spaces = false;
-	override_selected_font_color = false;
-	draw_caret = true;
-	max_chars = 0;
 	clear();
-	wrap_enabled = false;
-	wrap_at = 0;
-	wrap_right_offset = 10;
 	set_focus_mode(FOCUS_ALL);
 	_update_caches();
-	cache.line_spacing = 1;
-	cache.font_size = 16;
 	set_default_cursor_shape(CURSOR_IBEAM);
 
-	indent_size = 4;
 	text.set_indent_size(indent_size);
 	text.clear();
 
@@ -7231,31 +7219,16 @@ TextEdit::TextEdit() {
 	add_child(h_scroll);
 	add_child(v_scroll);
 
-	updating_scrolls = false;
-	selection.active = false;
-
 	h_scroll->connect("value_changed", callable_mp(this, &TextEdit::_scroll_moved));
 	v_scroll->connect("value_changed", callable_mp(this, &TextEdit::_scroll_moved));
 
 	v_scroll->connect("scrolling", callable_mp(this, &TextEdit::_v_scroll_input));
 
-	cursor_changed_dirty = false;
-	text_changed_dirty = false;
-
-	selection.selecting_mode = SelectionMode::SELECTION_MODE_NONE;
-	selection.selecting_line = 0;
-	selection.selecting_column = 0;
-	selection.selecting_text = false;
-	selection.active = false;
-
-	block_caret = false;
-	caret_blink_enabled = false;
 	caret_blink_timer = memnew(Timer);
 	add_child(caret_blink_timer);
 	caret_blink_timer->set_wait_time(0.65);
 	caret_blink_timer->connect("timeout", callable_mp(this, &TextEdit::_toggle_draw_caret));
 	cursor_set_blink_enabled(false);
-	right_click_moves_caret = true;
 
 	idle_detect = memnew(Timer);
 	add_child(idle_detect);
@@ -7268,54 +7241,8 @@ TextEdit::TextEdit() {
 	click_select_held->set_wait_time(0.05);
 	click_select_held->connect("timeout", callable_mp(this, &TextEdit::_click_selection_held));
 
-	current_op.type = TextOperation::TYPE_NONE;
-	undo_enabled = true;
 	undo_stack_max_size = GLOBAL_GET("gui/common/text_edit_undo_stack_max_size");
-	undo_stack_pos = nullptr;
-	setting_text = false;
-	last_dblclk = 0;
-	current_op.version = 0;
-	version = 0;
-	saved_version = 0;
 
-	completion_enabled = false;
-	completion_active = false;
-	completion_line_ofs = 0;
-	tooltip_obj = nullptr;
-	line_length_guidelines = false;
-	line_length_guideline_soft_col = 80;
-	line_length_guideline_hard_col = 100;
-	hiding_enabled = false;
-	next_operation_is_complex = false;
-	scroll_past_end_of_file_enabled = false;
-	auto_brace_completion_enabled = false;
-	brace_matching_enabled = false;
-	highlight_all_occurrences = false;
-	highlight_current_line = false;
-	indent_using_spaces = false;
-	space_indent = "    ";
-	auto_indent = false;
-	insert_mode = false;
-	window_has_focus = true;
-	select_identifiers_enabled = false;
-	smooth_scroll_enabled = false;
-	scrolling = false;
-	minimap_clicked = false;
-	dragging_minimap = false;
-	can_drag_minimap = false;
-	minimap_scroll_ratio = 0;
-	minimap_scroll_click_pos = 0;
-	dragging_selection = false;
-	target_v_scroll = 0;
-	v_scroll_speed = 80;
-	draw_minimap = false;
-	minimap_width = 80;
-	minimap_char_size = Point2(1, 2);
-	minimap_line_spacing = 1;
-
-	selecting_enabled = true;
-	context_menu_enabled = true;
-	shortcut_keys_enabled = true;
 	menu = memnew(PopupMenu);
 	add_child(menu);
 
@@ -7350,12 +7277,10 @@ TextEdit::TextEdit() {
 	menu_ctl->add_item(RTR("Soft hyphen (SHY)"), MENU_INSERT_SHY);
 	menu->add_child(menu_ctl);
 
-	readonly = true; // Initialise to opposite first, so we get past the early-out in set_readonly.
 	set_readonly(false);
 	menu->connect("id_pressed", callable_mp(this, &TextEdit::menu_option));
 	menu_dir->connect("id_pressed", callable_mp(this, &TextEdit::menu_option));
 	menu_ctl->connect("id_pressed", callable_mp(this, &TextEdit::menu_option));
-	first_draw = true;
 }
 
 TextEdit::~TextEdit() {

scene/gui/text_edit.h

@@ -92,14 +92,11 @@ private:
 			Vector<Vector2i> bidi_override;
 			Ref<TextParagraph> data_buf;
 
-			bool marked;
+			bool marked = false;
-			bool hidden;
+			bool hidden = false;
 
 			Line() {
 				data_buf.instance();
-
-				marked = false;
-				hidden = false;
 			}
 		};
 
@@ -173,46 +170,31 @@ private:
 	};
 
 	struct Cursor {
-		int last_fit_x;
+		int last_fit_x = 0;
-		int line, column; ///< cursor
+		int line = 0;
-		int x_ofs, line_ofs, wrap_ofs;
+		int column = 0; ///< cursor
-		Cursor() {
+		int x_ofs = 0;
-			last_fit_x = 0;
+		int line_ofs = 0;
-			line = 0;
+		int wrap_ofs = 0;
-			column = 0; ///< cursor
-			x_ofs = 0;
-			line_ofs = 0;
-			wrap_ofs = 0;
-		}
 	} cursor;
 
 	struct Selection {
-		SelectionMode selecting_mode;
+		SelectionMode selecting_mode = SelectionMode::SELECTION_MODE_NONE;
-		int selecting_line, selecting_column;
+		int selecting_line = 0;
-		int selected_word_beg, selected_word_end, selected_word_origin;
+		int selecting_column = 0;
-		bool selecting_text;
+		int selected_word_beg = 0;
+		int selected_word_end = 0;
+		int selected_word_origin = 0;
+		bool selecting_text = false;
 
-		bool active;
+		bool active = false;
 
-		int from_line, from_column;
+		int from_line = 0;
-		int to_line, to_column;
+		int from_column = 0;
+		int to_line = 0;
+		int to_column = 0;
 
-		bool shiftclick_left;
+		bool shiftclick_left = false;
-		Selection() {
-			selecting_mode = SelectionMode::SELECTION_MODE_NONE;
-			selecting_line = 0;
-			selecting_column = 0;
-			selected_word_beg = 0;
-			selected_word_end = 0;
-			selected_word_origin = 0;
-			selecting_text = false;
-			active = false;
-			from_line = 0;
-			from_column = 0;
-			to_line = 0;
-			to_column = 0;
-			shiftclick_left = false;
-		}
 	} selection;
 
 	Map<int, Dictionary> syntax_highlighting_cache;
@@ -224,25 +206,16 @@ private:
 			TYPE_REMOVE
 		};
 
-		Type type;
+		Type type = TYPE_NONE;
-		int from_line, from_column;
+		int from_line = 0;
-		int to_line, to_column;
+		int from_column = 0;
+		int to_line = 0;
+		int to_column = 0;
 		String text;
-		uint32_t prev_version;
+		uint32_t prev_version = 0;
-		uint32_t version;
+		uint32_t version = 0;
-		bool chain_forward;
+		bool chain_forward = false;
-		bool chain_backward;
+		bool chain_backward = false;
-		TextOperation() {
-			type = TYPE_NONE;
-			from_line = 0;
-			from_column = 0;
-			to_line = 0;
-			to_column = 0;
-			prev_version = 0;
-			version = 0;
-			chain_forward = false;
-			chain_backward = false;
-		}
 	};
 
 	String ime_text;
@@ -251,7 +224,7 @@ private:
 	TextOperation current_op;
 
 	List<TextOperation> undo_stack;
-	List<TextOperation>::Element *undo_stack_pos;
+	List<TextOperation>::Element *undo_stack_pos = nullptr;
 	int undo_stack_max_size;
 
 	void _clear_redo();
@@ -264,20 +237,20 @@ private:
 	Dictionary _get_line_syntax_highlighting(int p_line);
 
 	Set<String> completion_prefixes;
-	bool completion_enabled;
+	bool completion_enabled = false;
 	List<ScriptCodeCompletionOption> completion_sources;
 	Vector<ScriptCodeCompletionOption> completion_options;
-	bool completion_active;
+	bool completion_active = false;
-	bool completion_forced;
+	bool completion_forced = false;
 	ScriptCodeCompletionOption completion_current;
 	String completion_base;
-	int completion_index;
+	int completion_index = 0;
 	Rect2i completion_rect;
-	int completion_line_ofs;
+	int completion_line_ofs = 0;
 	String completion_hint;
-	int completion_hint_offset;
+	int completion_hint_offset = 0;
 
-	bool setting_text;
+	bool setting_text = false;
 
 	// data
 	Text text;
@@ -290,93 +263,93 @@ private:
 	Array st_args;
 	bool draw_control_chars = false;
 
-	uint32_t version;
+	uint32_t version = 0;
-	uint32_t saved_version;
+	uint32_t saved_version = 0;
 
-	int max_chars;
+	int max_chars = 0;
-	bool readonly;
+	bool readonly = true; // Initialise to opposite first, so we get past the early-out in set_readonly.
-	bool indent_using_spaces;
+	bool indent_using_spaces = false;
-	int indent_size;
+	int indent_size = 4;
-	String space_indent;
+	String space_indent = "    ";
 
 	Timer *caret_blink_timer;
-	bool caret_blink_enabled;
+	bool caret_blink_enabled = false;
-	bool draw_caret;
+	bool draw_caret = true;
-	bool window_has_focus;
+	bool window_has_focus = true;
-	bool block_caret;
+	bool block_caret = false;
-	bool right_click_moves_caret;
+	bool right_click_moves_caret = true;
 	bool mid_grapheme_caret_enabled = false;
 
-	bool wrap_enabled;
+	bool wrap_enabled = false;
-	int wrap_at;
+	int wrap_at = 0;
-	int wrap_right_offset;
+	int wrap_right_offset = 10;
 
-	bool first_draw;
+	bool first_draw = true;
-	bool setting_row;
+	bool setting_row = false;
-	bool draw_tabs;
+	bool draw_tabs = false;
-	bool draw_spaces;
+	bool draw_spaces = false;
-	bool override_selected_font_color;
+	bool override_selected_font_color = false;
-	bool cursor_changed_dirty;
+	bool cursor_changed_dirty = false;
-	bool text_changed_dirty;
+	bool text_changed_dirty = false;
-	bool undo_enabled;
+	bool undo_enabled = true;
-	bool line_length_guidelines;
+	bool line_length_guidelines = false;
-	int line_length_guideline_soft_col;
+	int line_length_guideline_soft_col = 80;
-	int line_length_guideline_hard_col;
+	int line_length_guideline_hard_col = 100;
-	bool hiding_enabled;
+	bool hiding_enabled = false;
-	bool draw_minimap;
+	bool draw_minimap = false;
-	int minimap_width;
+	int minimap_width = 80;
-	Point2 minimap_char_size;
+	Point2 minimap_char_size = Point2(1, 2);
-	int minimap_line_spacing;
+	int minimap_line_spacing = 1;
 
-	bool highlight_all_occurrences;
+	bool highlight_all_occurrences = false;
-	bool scroll_past_end_of_file_enabled;
+	bool scroll_past_end_of_file_enabled = false;
-	bool auto_brace_completion_enabled;
+	bool auto_brace_completion_enabled = false;
-	bool brace_matching_enabled;
+	bool brace_matching_enabled = false;
-	bool highlight_current_line;
+	bool highlight_current_line = false;
-	bool auto_indent;
+	bool auto_indent = false;
 	String cut_copy_line;
-	bool insert_mode;
+	bool insert_mode = false;
-	bool select_identifiers_enabled;
+	bool select_identifiers_enabled = false;
 
-	bool smooth_scroll_enabled;
+	bool smooth_scroll_enabled = false;
-	bool scrolling;
+	bool scrolling = false;
-	bool dragging_selection;
+	bool dragging_selection = false;
-	bool dragging_minimap;
+	bool dragging_minimap = false;
-	bool can_drag_minimap;
+	bool can_drag_minimap = false;
-	bool minimap_clicked;
+	bool minimap_clicked = false;
-	double minimap_scroll_ratio;
+	double minimap_scroll_ratio = 0.0;
-	double minimap_scroll_click_pos;
+	double minimap_scroll_click_pos = 0.0;
-	float target_v_scroll;
+	float target_v_scroll = 0.0;
-	float v_scroll_speed;
+	float v_scroll_speed = 80.0;
 
 	String highlighted_word;
 
-	uint64_t last_dblclk;
+	uint64_t last_dblclk = 0;
 
 	Timer *idle_detect;
 	Timer *click_select_held;
 	HScrollBar *h_scroll;
 	VScrollBar *v_scroll;
-	bool updating_scrolls;
+	bool updating_scrolls = false;
 
-	Object *tooltip_obj;
+	Object *tooltip_obj = nullptr;
 	StringName tooltip_func;
 	Variant tooltip_ud;
 
-	bool next_operation_is_complex;
+	bool next_operation_is_complex = false;
 
-	bool callhint_below;
+	bool callhint_below = false;
 	Vector2 callhint_offset;
 
 	String search_text;
-	uint32_t search_flags;
+	uint32_t search_flags = 0;
-	int search_result_line;
+	int search_result_line = 0;
-	int search_result_col;
+	int search_result_col = 0;
 
-	bool selecting_enabled;
+	bool selecting_enabled = true;
 
-	bool context_menu_enabled;
+	bool context_menu_enabled = true;
-	bool shortcut_keys_enabled;
+	bool shortcut_keys_enabled = true;
 	bool virtual_keyboard_enabled = true;
 
 	void _generate_context_menu();
@@ -477,7 +450,7 @@ protected:
 		Ref<StyleBox> style_focus;
 		Ref<StyleBox> style_readonly;
 		Ref<Font> font;
-		int font_size;
+		int font_size = 16;
 		Color completion_background_color;
 		Color completion_selected_color;
 		Color completion_existing_color;
@@ -498,12 +471,8 @@ protected:
 		Color search_result_border_color;
 		Color background_color;
 
-		int line_spacing;
+		int line_spacing = 1;
-		int minimap_width;
+		int minimap_width = 0;
-		Cache() {
-			line_spacing = 0;
-			minimap_width = 0;
-		}
 	} cache;
 
 	virtual String get_tooltip(const Point2 &p_pos) const override;

scene/gui/texture_button.cpp

@@ -377,13 +377,4 @@ bool TextureButton::is_flipped_v() const {
 	return vflip;
 }
 
-TextureButton::TextureButton() {
+TextureButton::TextureButton() {}
-	expand = false;
-	stretch_mode = STRETCH_SCALE;
-	hflip = false;
-	vflip = false;
-
-	_texture_region = Rect2();
-	_position_rect = Rect2();
-	_tile = false;
-}

scene/gui/texture_button.h

@@ -54,15 +54,15 @@ private:
 	Ref<Texture2D> disabled;
 	Ref<Texture2D> focused;
 	Ref<BitMap> click_mask;
-	bool expand;
+	bool expand = false;
-	StretchMode stretch_mode;
+	StretchMode stretch_mode = STRETCH_SCALE;
 
 	Rect2 _texture_region;
 	Rect2 _position_rect;
-	bool _tile;
+	bool _tile = false;
 
-	bool hflip;
+	bool hflip = false;
-	bool vflip;
+	bool vflip = false;
 
 protected:
 	virtual Size2 get_minimum_size() const override;

scene/gui/texture_progress_bar.cpp

@@ -145,9 +145,9 @@ Point2 TextureProgressBar::unit_val_to_uv(float val) {
 	float angle = (val * Math_TAU) - Math_PI * 0.5;
 	Point2 dir = Vector2(Math::cos(angle), Math::sin(angle));
 	float t1 = 1.0;
-	float cp = 0;
+	float cp = 0.0;
-	float cq = 0;
+	float cq = 0.0;
-	float cr = 0;
+	float cr = 0.0;
 	float edgeLeft = 0.0;
 	float edgeRight = 1.0;
 	float edgeBottom = 0.0;
@@ -540,17 +540,5 @@ void TextureProgressBar::_bind_methods() {
 }
 
 TextureProgressBar::TextureProgressBar() {
-	mode = FILL_LEFT_TO_RIGHT;
-	rad_init_angle = 0;
-	rad_center_off = Point2();
-	rad_max_degrees = 360;
 	set_mouse_filter(MOUSE_FILTER_PASS);
-
-	nine_patch_stretch = false;
-	stretch_margin[SIDE_LEFT] = 0;
-	stretch_margin[SIDE_RIGHT] = 0;
-	stretch_margin[SIDE_BOTTOM] = 0;
-	stretch_margin[SIDE_TOP] = 0;
-
-	tint_under = tint_progress = tint_over = Color(1, 1, 1);
 }

scene/gui/texture_progress_bar.h

@@ -98,13 +98,15 @@ public:
 	TextureProgressBar();
 
 private:
-	FillMode mode;
+	FillMode mode = FILL_LEFT_TO_RIGHT;
-	float rad_init_angle;
+	float rad_init_angle = 0.0;
-	float rad_max_degrees;
+	float rad_max_degrees = 360.0;
 	Point2 rad_center_off;
-	bool nine_patch_stretch;
+	bool nine_patch_stretch = false;
-	int stretch_margin[4];
+	int stretch_margin[4] = {};
-	Color tint_under, tint_progress, tint_over;
+	Color tint_under = Color(1, 1, 1);
+	Color tint_progress = Color(1, 1, 1);
+	Color tint_over = Color(1, 1, 1);
 
 	Point2 unit_val_to_uv(float val);
 	Point2 get_relative_center();

scene/gui/texture_rect.cpp

@@ -217,11 +217,7 @@ bool TextureRect::is_flipped_v() const {
 }
 
 TextureRect::TextureRect() {
-	expand = false;
-	hflip = false;
-	vflip = false;
 	set_mouse_filter(MOUSE_FILTER_PASS);
-	stretch_mode = STRETCH_SCALE_ON_EXPAND;
 }
 
 TextureRect::~TextureRect() {

scene/gui/texture_rect.h

@@ -49,11 +49,11 @@ public:
 	};
 
 private:
-	bool expand;
+	bool expand = false;
-	bool hflip;
+	bool hflip = false;
-	bool vflip;
+	bool vflip = false;
 	Ref<Texture2D> texture;
-	StretchMode stretch_mode;
+	StretchMode stretch_mode = STRETCH_SCALE_ON_EXPAND;
 
 	void _texture_changed();
 

scene/gui/tree.cpp

@@ -4232,19 +4232,8 @@ void Tree::_bind_methods() {
 }
 
 Tree::Tree() {
-	selected_col = 0;
 	columns.resize(1);
-	selected_item = nullptr;
-	edited_item = nullptr;
-	selected_col = -1;
-	edited_col = -1;
 
-	hide_root = false;
-	select_mode = SELECT_SINGLE;
-	root = nullptr;
-	popup_menu = nullptr;
-	popup_edited_item = nullptr;
-	text_editor = nullptr;
 	set_focus_mode(FOCUS_ALL);
 
 	popup_menu = memnew(PopupMenu);
@@ -4288,50 +4277,9 @@ Tree::Tree() {
 
 	set_notify_transform(true);
 
-	updating_value_editor = false;
-	pressed_button = -1;
-	show_column_titles = false;
-
-	cache.click_type = Cache::CLICK_NONE;
-	cache.hover_type = Cache::CLICK_NONE;
-	cache.hover_index = -1;
-	cache.click_index = -1;
-	cache.click_id = -1;
-	cache.click_item = nullptr;
-	cache.click_column = 0;
-	cache.hover_cell = -1;
-	last_keypress = 0;
-	focus_in_id = 0;
-
-	blocked = 0;
-
-	cursor_can_exit_tree = true;
 	set_mouse_filter(MOUSE_FILTER_STOP);
 
-	drag_speed = 0;
-	drag_touching = false;
-	drag_touching_deaccel = false;
-	pressing_for_editor = false;
-	range_drag_enabled = false;
-
-	hide_folding = false;
-
-	drop_mode_flags = 0;
-	drop_mode_over = nullptr;
-	drop_mode_section = 0;
-	single_select_defer = nullptr;
-
-	scrolling = false;
-	allow_rmb_select = false;
-	force_edit_checkbox_only_on_checkbox = false;
-
 	set_clip_contents(true);
-
-	cache.hover_item = nullptr;
-	cache.hover_cell = -1;
-
-	allow_reselect = false;
-	propagate_mouse_activated = false;
 }
 
 Tree::~Tree() {

scene/gui/tree.h

@@ -62,7 +62,7 @@ private:
 	friend class Tree;
 
 	struct Cell {
-		TreeCellMode mode;
+		TreeCellMode mode = TreeItem::CELL_MODE_STRING;
 
 		Ref<Texture2D> icon;
 		Rect2i icon_region;
@@ -74,24 +74,27 @@ private:
 		Control::StructuredTextParser st_parser = Control::STRUCTURED_TEXT_DEFAULT;
 		Array st_args;
 		Control::TextDirection text_direction = Control::TEXT_DIRECTION_INHERITED;
-		bool dirty;
+		bool dirty = true;
-		double min, max, step, val;
+		double min = 0.0;
-		int icon_max_w;
+		double max = 100.0;
-		bool expr;
+		double step = 1.0;
-		bool checked;
+		double val = 0.0;
-		bool editable;
+		int icon_max_w = 0;
-		bool selected;
+		bool expr = false;
-		bool selectable;
+		bool checked = false;
-		bool custom_color;
+		bool editable = false;
+		bool selected = false;
+		bool selectable = true;
+		bool custom_color = false;
 		Color color;
-		bool custom_bg_color;
+		bool custom_bg_color = false;
-		bool custom_bg_outline;
+		bool custom_bg_outline = false;
 		Color bg_color;
-		bool custom_button;
+		bool custom_button = false;
-		bool expand_right;
+		bool expand_right = false;
-		Color icon_color;
+		Color icon_color = Color(1, 1, 1);
 
-		TextAlign text_align;
+		TextAlign text_align = ALIGN_LEFT;
 
 		Variant meta;
 		String tooltip;
@@ -100,42 +103,17 @@ private:
 		StringName custom_draw_callback;
 
 		struct Button {
-			int id;
+			int id = 0;
-			bool disabled;
+			bool disabled = false;
 			Ref<Texture2D> texture;
-			Color color;
+			Color color = Color(1, 1, 1, 1);
 			String tooltip;
-			Button() {
-				id = 0;
-				disabled = false;
-				color = Color(1, 1, 1, 1);
-				tooltip = "";
-			}
 		};
 
 		Vector<Button> buttons;
 
 		Cell() {
 			text_buf.instance();
-			dirty = true;
-			custom_draw_obj = ObjectID();
-			custom_button = false;
-			mode = TreeItem::CELL_MODE_STRING;
-			min = 0;
-			max = 100;
-			step = 1;
-			val = 0;
-			checked = false;
-			editable = false;
-			selected = false;
-			selectable = true;
-			custom_color = false;
-			custom_bg_color = false;
-			expr = false;
-			icon_max_w = 0;
-			text_align = ALIGN_LEFT;
-			expand_right = false;
-			icon_color = Color(1, 1, 1);
 		}
 
 		Size2 get_icon_size() const;
@@ -332,46 +310,46 @@ public:
 private:
 	friend class TreeItem;
 
-	TreeItem *root;
+	TreeItem *root = nullptr;
-	TreeItem *popup_edited_item;
+	TreeItem *popup_edited_item = nullptr;
-	TreeItem *selected_item;
+	TreeItem *selected_item = nullptr;
-	TreeItem *edited_item;
+	TreeItem *edited_item = nullptr;
 
-	TreeItem *drop_mode_over;
+	TreeItem *drop_mode_over = nullptr;
-	int drop_mode_section;
+	int drop_mode_section = 0;
 
-	TreeItem *single_select_defer;
+	TreeItem *single_select_defer = nullptr;
-	int single_select_defer_column;
+	int single_select_defer_column = 0;
 
-	int pressed_button;
+	int pressed_button = -1;
-	bool pressing_for_editor;
+	bool pressing_for_editor = false;
 	String pressing_for_editor_text;
 	Vector2 pressing_pos;
 	Rect2 pressing_item_rect;
 
-	float range_drag_base;
+	float range_drag_base = 0.0;
-	bool range_drag_enabled;
+	bool range_drag_enabled = false;
 	Vector2 range_drag_capture_pos;
 
-	bool propagate_mouse_activated;
+	bool propagate_mouse_activated = false;
 
 	//TreeItem *cursor_item;
 	//int cursor_column;
 
 	Rect2 custom_popup_rect;
-	int edited_col;
+	int edited_col = -1;
-	int selected_col;
+	int selected_col = -1;
-	int popup_edited_item_col;
+	int popup_edited_item_col = -1;
-	bool hide_root;
+	bool hide_root = false;
-	SelectMode select_mode;
+	SelectMode select_mode = SELECT_SINGLE;
 
-	int blocked;
+	int blocked = 0;
 
-	int drop_mode_flags;
+	int drop_mode_flags = 0;
 
 	struct ColumnInfo {
-		int min_width;
+		int min_width = 1;
-		bool expand;
+		bool expand = true;
 		String title;
 		Ref<TextLine> text_buf;
 		Dictionary opentype_features;
@@ -379,27 +357,25 @@ private:
 		Control::TextDirection text_direction = Control::TEXT_DIRECTION_INHERITED;
 		ColumnInfo() {
 			text_buf.instance();
-			min_width = 1;
-			expand = true;
 		}
 	};
 
-	bool show_column_titles;
+	bool show_column_titles = false;
 
 	VBoxContainer *popup_editor_vb;
 
 	Popup *popup_editor;
-	LineEdit *text_editor;
+	LineEdit *text_editor = nullptr;
 	HSlider *value_editor;
-	bool updating_value_editor;
+	bool updating_value_editor = false;
-	uint64_t focus_in_id;
+	uint64_t focus_in_id = 0;
-	PopupMenu *popup_menu;
+	PopupMenu *popup_menu = nullptr;
 
 	Vector<ColumnInfo> columns;
 
 	Timer *range_click_timer;
-	TreeItem *range_item_last;
+	TreeItem *range_item_last = nullptr;
-	bool range_up_last;
+	bool range_up_last = false;
 	void _range_click_timeout();
 
 	int compute_item_height(TreeItem *p_item) const;
@@ -434,8 +410,8 @@ private:
 	struct Cache {
 		Ref<Font> font;
 		Ref<Font> tb_font;
-		int font_size;
+		int font_size = 0;
-		int tb_font_size;
+		int tb_font_size = 0;
 		Ref<StyleBox> bg;
 		Ref<StyleBox> selected;
 		Ref<StyleBox> selected_focus;
@@ -465,15 +441,15 @@ private:
 		Color relationship_line_color;
 		Color custom_button_font_highlight;
 
-		int hseparation;
+		int hseparation = 0;
-		int vseparation;
+		int vseparation = 0;
-		int item_margin;
+		int item_margin = 0;
-		int button_margin;
+		int button_margin = 0;
 		Point2 offset;
-		int draw_relationship_lines;
+		int draw_relationship_lines = 0;
-		int draw_guides;
+		int draw_guides = 0;
-		int scroll_border;
+		int scroll_border = 0;
-		int scroll_speed;
+		int scroll_speed = 0;
 
 		enum ClickType {
 			CLICK_NONE,
@@ -482,17 +458,17 @@ private:
 
 		};
 
-		ClickType click_type;
+		ClickType click_type = Cache::CLICK_NONE;
-		ClickType hover_type;
+		ClickType hover_type = Cache::CLICK_NONE;
-		int click_index;
+		int click_index = -1;
-		int click_id;
+		int click_id = -1;
-		TreeItem *click_item;
+		TreeItem *click_item = nullptr;
-		int click_column;
+		int click_column = 0;
-		int hover_index;
+		int hover_index = -1;
 		Point2 click_pos;
 
-		TreeItem *hover_item;
+		TreeItem *hover_item = nullptr;
-		int hover_cell;
+		int hover_cell = -1;
 
 		Point2i text_editor_position;
 
@@ -510,9 +486,9 @@ private:
 
 	Rect2 search_item_rect(TreeItem *p_from, TreeItem *p_item);
 	//Rect2 get_item_rect(TreeItem *p_item);
-	uint64_t last_keypress;
+	uint64_t last_keypress = 0;
 	String incr_search;
-	bool cursor_can_exit_tree;
+	bool cursor_can_exit_tree = true;
 	void _do_incr_search(const String &p_add);
 
 	TreeItem *_search_item_text(TreeItem *p_at, const String &p_find, int *r_col, bool p_selectable, bool p_backwards = false);
@@ -526,21 +502,21 @@ private:
 	float last_drag_time;
 	float time_since_motion;*/
 
-	float drag_speed;
+	float drag_speed = 0.0;
-	float drag_from;
+	float drag_from = 0.0;
-	float drag_accum;
+	float drag_accum = 0.0;
 	Vector2 last_speed;
-	bool drag_touching;
+	bool drag_touching = false;
-	bool drag_touching_deaccel;
+	bool drag_touching_deaccel = false;
-	bool click_handled;
+	bool click_handled = false;
-	bool allow_rmb_select;
+	bool allow_rmb_select = false;
-	bool scrolling;
+	bool scrolling = false;
 
-	bool allow_reselect;
+	bool allow_reselect = false;
 
-	bool force_edit_checkbox_only_on_checkbox;
+	bool force_edit_checkbox_only_on_checkbox = false;
 
-	bool hide_folding;
+	bool hide_folding = false;
 
 	int _count_selected_items(TreeItem *p_from) const;
 	void _go_left();

scene/gui/video_player.cpp

@@ -462,25 +462,7 @@ void VideoPlayer::_bind_methods() {
 	ADD_PROPERTY(PropertyInfo(Variant::STRING_NAME, "bus", PROPERTY_HINT_ENUM, ""), "set_bus", "get_bus");
 }
 
-VideoPlayer::VideoPlayer() {
+VideoPlayer::VideoPlayer() {}
-	volume = 1;
-	loops = false;
-	paused = false;
-	autoplay = false;
-	expand = true;
-
-	audio_track = 0;
-	bus_index = 0;
-
-	buffering_ms = 500;
-
-	//	internal_stream.player=this;
-	//	stream_rid=AudioServer::get_singleton()->audio_stream_create(&internal_stream);
-	last_audio_time = 0;
-
-	wait_resampler = 0;
-	wait_resampler_limit = 2;
-};
 
 VideoPlayer::~VideoPlayer() {
 	//	if (stream_rid.is_valid())

scene/gui/video_player.h

@@ -41,8 +41,8 @@ class VideoPlayer : public Control {
 
 	struct Output {
 		AudioFrame vol;
-		int bus_index;
+		int bus_index = 0;
-		Viewport *viewport; //pointer only used for reference to previous mix
+		Viewport *viewport = nullptr; //pointer only used for reference to previous mix
 	};
 	Ref<VideoStreamPlayback> playback;
 	Ref<VideoStream> stream;
@@ -56,17 +56,18 @@ class VideoPlayer : public Control {
 
 	AudioRBResampler resampler;
 	Vector<AudioFrame> mix_buffer;
-	int wait_resampler, wait_resampler_limit;
+	int wait_resampler = 0;
+	int wait_resampler_limit = 2;
 
-	bool paused;
+	bool paused = false;
-	bool autoplay;
+	bool autoplay = false;
-	float volume;
+	float volume = 1.0;
-	double last_audio_time;
+	double last_audio_time = 0.0;
-	bool expand;
+	bool expand = true;
-	bool loops;
+	bool loops = false;
-	int buffering_ms;
+	int buffering_ms = 500;
-	int audio_track;
+	int audio_track = 0;
-	int bus_index;
+	int bus_index = 0;
 
 	StringName bus;
 

scene/main/canvas_item.h

@@ -90,7 +90,7 @@ private:
 
 	struct ShaderData {
 		RID shader;
-		int users;
+		int users = 0;
 	};
 
 	static Map<MaterialKey, ShaderData> shader_map;

scene/main/canvas_layer.cpp

@@ -303,17 +303,7 @@ void CanvasLayer::_bind_methods() {
 }
 
 CanvasLayer::CanvasLayer() {
-	vp = nullptr;
-	scale = Vector2(1, 1);
-	rot = 0;
-	locrotscale_dirty = false;
-	layer = 1;
 	canvas = RS::get_singleton()->canvas_create();
-	custom_viewport = nullptr;
-
-	sort_index = 0;
-	follow_viewport = false;
-	follow_viewport_scale = 1.0;
 }
 
 CanvasLayer::~CanvasLayer() {

scene/main/canvas_layer.h

@@ -38,24 +38,24 @@ class Viewport;
 class CanvasLayer : public Node {
 	GDCLASS(CanvasLayer, Node);
 
-	bool locrotscale_dirty;
+	bool locrotscale_dirty = false;
 	Vector2 ofs;
-	Size2 scale;
+	Size2 scale = Vector2(1, 1);
-	real_t rot;
+	real_t rot = 0.0;
-	int layer;
+	int layer = 1;
 	Transform2D transform;
 	RID canvas;
 
 	ObjectID custom_viewport_id; // to check validity
-	Viewport *custom_viewport;
+	Viewport *custom_viewport = nullptr;
 
 	RID viewport;
-	Viewport *vp;
+	Viewport *vp = nullptr;
 
-	int sort_index;
+	int sort_index = 0;
 
-	bool follow_viewport;
+	bool follow_viewport = false;
-	float follow_viewport_scale;
+	float follow_viewport_scale = 1.0;
 
 	void _update_xform();
 	void _update_locrotscale();

scene/main/http_request.cpp

@@ -638,29 +638,11 @@ void HTTPRequest::_bind_methods() {
 }
 
 HTTPRequest::HTTPRequest() {
-	port = 80;
-	redirections = 0;
-	max_redirects = 8;
-	body_len = -1;
-	got_response = false;
-	validate_ssl = false;
-	use_ssl = false;
-	accept_gzip = true;
-	response_code = 0;
-	request_sent = false;
-	requesting = false;
 	client.instance();
-	use_threads = false;
-	thread_done = false;
-	downloaded = 0;
-	body_size_limit = -1;
-	file = nullptr;
-
 	timer = memnew(Timer);
 	timer->set_one_shot(true);
 	timer->connect("timeout", callable_mp(this, &HTTPRequest::_timeout));
 	add_child(timer);
-	timeout = 0;
 }
 
 HTTPRequest::~HTTPRequest() {

scene/main/http_request.h

@@ -60,42 +60,42 @@ public:
 	};
 
 private:
-	bool requesting;
+	bool requesting = false;
 
 	String request_string;
 	String url;
-	int port;
+	int port = 80;
 	Vector<String> headers;
-	bool validate_ssl;
+	bool validate_ssl = false;
-	bool use_ssl;
+	bool use_ssl = false;
 	HTTPClient::Method method;
 	Vector<uint8_t> request_data;
 
-	bool request_sent;
+	bool request_sent = false;
 	Ref<HTTPClient> client;
 	PackedByteArray body;
-	volatile bool use_threads;
+	volatile bool use_threads = false;
-	bool accept_gzip;
+	bool accept_gzip = true;
 
-	bool got_response;
+	bool got_response = false;
-	int response_code;
+	int response_code = 0;
 	Vector<String> response_headers;
 
 	String download_to_file;
 
-	FileAccess *file;
+	FileAccess *file = nullptr;
 
-	int body_len;
+	int body_len = -1;
-	volatile int downloaded;
+	volatile int downloaded = 0;
-	int body_size_limit;
+	int body_size_limit = -1;
 
-	int redirections;
+	int redirections = 0;
 
 	bool _update_connection();
 
-	int max_redirects;
+	int max_redirects = 8;
 
-	int timeout;
+	int timeout = 0;
 
 	void _redirect_request(const String &p_new_url);
 
@@ -107,8 +107,8 @@ private:
 	bool has_header(const PackedStringArray &p_headers, const String &p_header_name);
 	String get_header_value(const PackedStringArray &p_headers, const String &header_name);
 
-	volatile bool thread_done;
+	volatile bool thread_done = false;
-	volatile bool thread_request_quit;
+	volatile bool thread_request_quit = false;
 
 	Thread thread;
 

scene/main/node.h

@@ -80,7 +80,7 @@ private:
 
 	struct NetData {
 		StringName name;
-		MultiplayerAPI::RPCMode mode;
+		MultiplayerAPI::RPCMode mode = MultiplayerAPI::RPCMode::RPC_MODE_DISABLED;
 	};
 
 	struct Data {
@@ -297,7 +297,7 @@ public:
 
 	struct GroupInfo {
 		StringName name;
-		bool persistent;
+		bool persistent = false;
 	};
 
 	void get_groups(List<GroupInfo> *p_groups) const;

scene/main/scene_tree.cpp

@@ -90,10 +90,7 @@ void SceneTreeTimer::release_connections() {
 	}
 }
 
-SceneTreeTimer::SceneTreeTimer() {
+SceneTreeTimer::SceneTreeTimer() {}
-	time_left = 0;
-	process_pause = true;
-}
 
 void SceneTree::tree_changed() {
 	tree_version++;

scene/main/scene_tree.h

@@ -51,8 +51,8 @@ class SceneDebugger;
 class SceneTreeTimer : public Reference {
 	GDCLASS(SceneTreeTimer, Reference);
 
-	float time_left;
+	float time_left = 0.0;
-	bool process_pause;
+	bool process_pause = true;
 
 protected:
 	static void _bind_methods();
@@ -80,8 +80,7 @@ public:
 private:
 	struct Group {
 		Vector<Node *> nodes;
-		bool changed;
+		bool changed = false;
-		Group() { changed = false; };
 	};
 
 	Window *root = nullptr;

scene/main/shader_globals_override.cpp

@@ -277,6 +277,4 @@ void ShaderGlobalsOverride::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("_activate"), &ShaderGlobalsOverride::_activate);
 }
 
-ShaderGlobalsOverride::ShaderGlobalsOverride() {
+ShaderGlobalsOverride::ShaderGlobalsOverride() {}
-	active = false;
-}

scene/main/shader_globals_override.h

@@ -43,7 +43,7 @@ class ShaderGlobalsOverride : public Node {
 
 	StringName *_remap(const StringName &p_name) const;
 
-	bool active;
+	bool active = false;
 	mutable HashMap<StringName, Override> overrides;
 	mutable HashMap<StringName, StringName> param_remaps;
 

scene/main/timer.cpp

@@ -217,12 +217,4 @@ void Timer::_bind_methods() {
 	BIND_ENUM_CONSTANT(TIMER_PROCESS_IDLE);
 }
 
-Timer::Timer() {
+Timer::Timer() {}
-	timer_process_mode = TIMER_PROCESS_IDLE;
-	autostart = false;
-	wait_time = 1;
-	one_shot = false;
-	time_left = -1;
-	processing = false;
-	paused = false;
-}

scene/main/timer.h

@@ -36,13 +36,13 @@
 class Timer : public Node {
 	GDCLASS(Timer, Node);
 
-	float wait_time;
+	float wait_time = 1.0;
-	bool one_shot;
+	bool one_shot = false;
-	bool autostart;
+	bool autostart = false;
-	bool processing;
+	bool processing = false;
-	bool paused;
+	bool paused = false;
 
-	double time_left;
+	double time_left = -1.0;
 
 protected:
 	void _notification(int p_what);
@@ -78,7 +78,7 @@ public:
 	Timer();
 
 private:
-	TimerProcessMode timer_process_mode;
+	TimerProcessMode timer_process_mode = TIMER_PROCESS_IDLE;
 	void _set_process(bool p_process, bool p_force = false);
 };
 

scene/main/viewport.cpp

@@ -144,7 +144,6 @@ void ViewportTexture::_bind_methods() {
 }
 
 ViewportTexture::ViewportTexture() {
-	vp = nullptr;
 	set_local_to_scene(true);
 }
 
@@ -184,26 +183,6 @@ public:
 
 /////////////////////////////////////
 
-Viewport::GUI::GUI() {
-	embed_subwindows_hint = false;
-	embedding_subwindows = false;
-
-	dragging = false;
-	mouse_focus = nullptr;
-	forced_mouse_focus = false;
-	mouse_click_grabber = nullptr;
-	mouse_focus_mask = 0;
-	key_focus = nullptr;
-	mouse_over = nullptr;
-	drag_mouse_over = nullptr;
-
-	tooltip_control = nullptr;
-	tooltip_popup = nullptr;
-	tooltip_label = nullptr;
-}
-
-/////////////////////////////////////
-
 void Viewport::update_worlds() {
 	if (!is_inside_tree()) {
 		return;
@@ -3682,26 +3661,10 @@ Viewport::Viewport() {
 	viewport_textures.insert(default_texture.ptr());
 	default_texture->proxy = RS::get_singleton()->texture_proxy_create(texture_rid);
 
-	audio_listener = false;
 	//internal_listener_2d = SpatialSound2DServer::get_singleton()->listener_create();
-	audio_listener_2d = false;
-	transparent_bg = false;
-	parent = nullptr;
-	listener = nullptr;
-	camera = nullptr;
-	override_canvas_transform = false;
 	canvas_layers.insert(nullptr); // This eases picking code (interpreted as the canvas of the Viewport)
 
-	gen_mipmaps = false;
-
 	//clear=true;
-
-	physics_object_picking = false;
-	physics_has_last_mousepos = false;
-	physics_last_mousepos = Vector2(Math_INF, Math_INF);
-
-	shadow_atlas_16_bits = true;
-	shadow_atlas_size = 2048;
 	set_shadow_atlas_size(shadow_atlas_size);
 
 	for (int i = 0; i < 4; i++) {
@@ -3720,50 +3683,11 @@ Viewport::Viewport() {
 	unhandled_input_group = "_vp_unhandled_input" + id;
 	unhandled_key_input_group = "_vp_unhandled_key_input" + id;
 
-	disable_input = false;
-
 	// Window tooltip.
-	gui.tooltip_timer = -1;
-
 	gui.tooltip_delay = GLOBAL_DEF("gui/timers/tooltip_delay_sec", 0.5);
 	ProjectSettings::get_singleton()->set_custom_property_info("gui/timers/tooltip_delay_sec", PropertyInfo(Variant::FLOAT, "gui/timers/tooltip_delay_sec", PROPERTY_HINT_RANGE, "0,5,0.01,or_greater")); // No negative numbers
 
-	gui.tooltip_control = nullptr;
+	set_sdf_oversize(sdf_oversize); //set to server
-	gui.tooltip_label = nullptr;
-	gui.drag_preview = nullptr;
-	gui.drag_attempted = false;
-	gui.canvas_sort_index = 0;
-	gui.roots_order_dirty = false;
-	gui.mouse_focus = nullptr;
-	gui.forced_mouse_focus = false;
-	gui.last_mouse_focus = nullptr;
-	gui.subwindow_focused = nullptr;
-	gui.subwindow_drag = SUB_WINDOW_DRAG_DISABLED;
-
-	msaa = MSAA_DISABLED;
-	screen_space_aa = SCREEN_SPACE_AA_DISABLED;
-	debug_draw = DEBUG_DRAW_DISABLED;
-
-	snap_controls_to_pixels = true;
-	snap_2d_transforms_to_pixel = false;
-	snap_2d_vertices_to_pixel = false;
-
-	physics_last_mouse_state.alt = false;
-	physics_last_mouse_state.control = false;
-	physics_last_mouse_state.shift = false;
-	physics_last_mouse_state.meta = false;
-	physics_last_mouse_state.mouse_mask = 0;
-	local_input_handled = false;
-	handle_input_locally = true;
-
-	size_allocated = false;
-
-	default_canvas_item_texture_filter = DEFAULT_CANVAS_ITEM_TEXTURE_FILTER_LINEAR;
-	default_canvas_item_texture_repeat = DEFAULT_CANVAS_ITEM_TEXTURE_REPEAT_DISABLED;
-
-	sdf_oversize = SDF_OVERSIZE_120_PERCENT;
-	sdf_scale = SDF_SCALE_50_PERCENT;
-	set_sdf_oversize(SDF_OVERSIZE_120_PERCENT); //set to server
 }
 
 Viewport::~Viewport() {
@@ -3895,12 +3819,6 @@ void SubViewport::_bind_methods() {
 	BIND_ENUM_CONSTANT(UPDATE_ALWAYS);
 }
 
-SubViewport::SubViewport() {
+SubViewport::SubViewport() {}
-	xr = false;
-	size_2d_override_stretch = false;
-	update_mode = UPDATE_WHEN_VISIBLE;
-	clear_mode = CLEAR_MODE_ALWAYS;
-}
 
-SubViewport::~SubViewport() {
+SubViewport::~SubViewport() {}
-}

scene/main/viewport.h

@@ -56,7 +56,7 @@ class ViewportTexture : public Texture2D {
 	NodePath path;
 
 	friend class Viewport;
-	Viewport *vp;
+	Viewport *vp = nullptr;
 
 	mutable RID proxy_ph;
 	mutable RID proxy;
@@ -186,9 +186,9 @@ public:
 private:
 	friend class ViewportTexture;
 
-	Viewport *parent;
+	Viewport *parent = nullptr;
 
-	Listener3D *listener;
+	Listener3D *listener = nullptr;
 	Set<Listener3D *> listeners;
 
 	struct CameraOverrideData {
@@ -197,11 +197,11 @@ private:
 			PROJECTION_PERSPECTIVE,
 			PROJECTION_ORTHOGONAL
 		};
-		Projection projection;
+		Projection projection = Projection::PROJECTION_PERSPECTIVE;
-		float fov;
+		float fov = 0.0;
-		float size;
+		float size = 0.0;
-		float z_near;
+		float z_near = 0.0;
-		float z_far;
+		float z_far = 0.0;
 		RID rid;
 
 		operator bool() const {
@@ -209,7 +209,7 @@ private:
 		}
 	} camera_override;
 
-	Camera3D *camera;
+	Camera3D *camera = nullptr;
 	Set<Camera3D *> cameras;
 	Set<CanvasLayer *> canvas_layers;
 
@@ -217,13 +217,13 @@ private:
 	RID current_canvas;
 	RID subwindow_canvas;
 
-	bool audio_listener;
+	bool audio_listener = false;
 	RID internal_listener;
 
-	bool audio_listener_2d;
+	bool audio_listener_2d = false;
 	RID internal_listener_2d;
 
-	bool override_canvas_transform;
+	bool override_canvas_transform = false;
 
 	Transform2D canvas_transform_override;
 	Transform2D canvas_transform;
@@ -232,7 +232,7 @@ private:
 
 	Size2i size;
 	Size2i size_2d_override;
-	bool size_allocated;
+	bool size_allocated = false;
 
 	RID contact_2d_debug;
 	RID contact_3d_debug_multimesh;
@@ -240,36 +240,36 @@ private:
 
 	Rect2 last_vp_rect;
 
-	bool transparent_bg;
+	bool transparent_bg = false;
 	bool filter;
-	bool gen_mipmaps;
+	bool gen_mipmaps = false;
 
-	bool snap_controls_to_pixels;
+	bool snap_controls_to_pixels = true;
-	bool snap_2d_transforms_to_pixel;
+	bool snap_2d_transforms_to_pixel = false;
-	bool snap_2d_vertices_to_pixel;
+	bool snap_2d_vertices_to_pixel = false;
 
-	bool physics_object_picking;
+	bool physics_object_picking = false;
 	List<Ref<InputEvent>> physics_picking_events;
 	ObjectID physics_object_capture;
 	ObjectID physics_object_over;
 	Transform physics_last_object_transform;
 	Transform physics_last_camera_transform;
 	ObjectID physics_last_id;
-	bool physics_has_last_mousepos;
+	bool physics_has_last_mousepos = false;
-	Vector2 physics_last_mousepos;
+	Vector2 physics_last_mousepos = Vector2(Math_INF, Math_INF);
 	struct {
-		bool alt;
+		bool alt = false;
-		bool control;
+		bool control = false;
-		bool shift;
+		bool shift = false;
-		bool meta;
+		bool meta = false;
-		int mouse_mask;
+		int mouse_mask = 0;
 
 	} physics_last_mouse_state;
 
 	void _collision_object_input_event(CollisionObject3D *p_object, Camera3D *p_camera, const Ref<InputEvent> &p_input_event, const Vector3 &p_pos, const Vector3 &p_normal, int p_shape);
 
-	bool handle_input_locally;
+	bool handle_input_locally = true;
-	bool local_input_handled;
+	bool local_input_handled = false;
 
 	Map<ObjectID, uint64_t> physics_2d_mouseover;
 
@@ -294,22 +294,22 @@ private:
 
 	RID texture_rid;
 
-	DebugDraw debug_draw;
+	DebugDraw debug_draw = DEBUG_DRAW_DISABLED;
 
-	int shadow_atlas_size;
+	int shadow_atlas_size = 2048;
 	bool shadow_atlas_16_bits = true;
 	ShadowAtlasQuadrantSubdiv shadow_atlas_quadrant_subdiv[4];
 
-	MSAA msaa;
+	MSAA msaa = MSAA_DISABLED;
-	ScreenSpaceAA screen_space_aa;
+	ScreenSpaceAA screen_space_aa = SCREEN_SPACE_AA_DISABLED;
 	bool use_debanding = false;
 	float lod_threshold = 1.0;
 
 	Ref<ViewportTexture> default_texture;
 	Set<ViewportTexture *> viewport_textures;
 
-	SDFOversize sdf_oversize;
+	SDFOversize sdf_oversize = SDF_OVERSIZE_120_PERCENT;
-	SDFScale sdf_scale;
+	SDFScale sdf_scale = SDF_SCALE_50_PERCENT;
 
 	enum SubWindowDrag {
 		SUB_WINDOW_DRAG_DISABLED,
@@ -332,60 +332,58 @@ private:
 	};
 
 	struct SubWindow {
-		Window *window;
+		Window *window = nullptr;
 		RID canvas_item;
 	};
 
 	struct GUI {
 		// info used when this is a window
 
-		bool forced_mouse_focus; //used for menu buttons
+		bool forced_mouse_focus = false; //used for menu buttons
-		bool key_event_accepted;
+		bool key_event_accepted = false;
-		Control *mouse_focus;
+		Control *mouse_focus = nullptr;
-		Control *last_mouse_focus;
+		Control *last_mouse_focus = nullptr;
-		Control *mouse_click_grabber;
+		Control *mouse_click_grabber = nullptr;
-		int mouse_focus_mask;
+		int mouse_focus_mask = 0;
-		Control *key_focus;
+		Control *key_focus = nullptr;
-		Control *mouse_over;
+		Control *mouse_over = nullptr;
-		Control *drag_mouse_over;
+		Control *drag_mouse_over = nullptr;
 		Vector2 drag_mouse_over_pos;
-		Control *tooltip_control;
+		Control *tooltip_control = nullptr;
-		Window *tooltip_popup;
+		Window *tooltip_popup = nullptr;
-		Label *tooltip_label;
+		Label *tooltip_label = nullptr;
 		Point2 tooltip_pos;
 		Point2 last_mouse_pos;
 		Point2 drag_accum;
-		bool drag_attempted;
+		bool drag_attempted = false;
 		Variant drag_data;
-		Control *drag_preview;
+		Control *drag_preview = nullptr;
-		float tooltip_timer;
+		float tooltip_timer = -1.0;
-		float tooltip_delay;
+		float tooltip_delay = 0.0;
 		Transform2D focus_inv_xform;
-		bool roots_order_dirty;
+		bool roots_order_dirty = false;
 		List<Control *> roots;
-		int canvas_sort_index; //for sorting items with canvas as root
+		int canvas_sort_index = 0; //for sorting items with canvas as root
-		bool dragging;
+		bool dragging = false;
-		bool embed_subwindows_hint;
+		bool embed_subwindows_hint = false;
-		bool embedding_subwindows;
+		bool embedding_subwindows = false;
 
-		Window *subwindow_focused;
+		Window *subwindow_focused = nullptr;
-		SubWindowDrag subwindow_drag;
+		SubWindowDrag subwindow_drag = SUB_WINDOW_DRAG_DISABLED;
 		Vector2 subwindow_drag_from;
 		Vector2 subwindow_drag_pos;
 		Rect2i subwindow_drag_close_rect;
-		bool subwindow_drag_close_inside;
+		bool subwindow_drag_close_inside = false;
 		SubWindowResize subwindow_resize_mode;
 		Rect2i subwindow_resize_from_rect;
 
 		Vector<SubWindow> sub_windows;
-
-		GUI();
 	} gui;
 
-	DefaultCanvasItemTextureFilter default_canvas_item_texture_filter;
+	DefaultCanvasItemTextureFilter default_canvas_item_texture_filter = DEFAULT_CANVAS_ITEM_TEXTURE_FILTER_LINEAR;
-	DefaultCanvasItemTextureRepeat default_canvas_item_texture_repeat;
+	DefaultCanvasItemTextureRepeat default_canvas_item_texture_repeat = DEFAULT_CANVAS_ITEM_TEXTURE_REPEAT_DISABLED;
 
-	bool disable_input;
+	bool disable_input = false;
 
 	void _gui_call_input(Control *p_control, const Ref<InputEvent> &p_input);
 	void _gui_call_notification(Control *p_control, int p_what);
@@ -651,10 +649,10 @@ public:
 	};
 
 private:
-	UpdateMode update_mode;
+	UpdateMode update_mode = UPDATE_WHEN_VISIBLE;
-	ClearMode clear_mode;
+	ClearMode clear_mode = CLEAR_MODE_ALWAYS;
-	bool xr;
+	bool xr = false;
-	bool size_2d_override_stretch;
+	bool size_2d_override_stretch = false;
 
 protected:
 	static void _bind_methods();

scene/main/window.cpp

@@ -1466,11 +1466,6 @@ void Window::_bind_methods() {
 }
 
 Window::Window() {
-	for (int i = 0; i < FLAG_MAX; i++) {
-		flags[i] = false;
-	}
-	content_scale_mode = CONTENT_SCALE_MODE_DISABLED;
-	content_scale_aspect = CONTENT_SCALE_ASPECT_IGNORE;
 	RS::get_singleton()->viewport_set_update_mode(get_viewport_rid(), RS::VIEWPORT_UPDATE_DISABLED);
 }
 

scene/main/window.h

@@ -90,7 +90,7 @@ private:
 	mutable Size2i min_size;
 	mutable Size2i max_size;
 	mutable Mode mode = MODE_WINDOWED;
-	mutable bool flags[FLAG_MAX];
+	mutable bool flags[FLAG_MAX] = {};
 	bool visible = true;
 	bool focused = false;
 
@@ -106,8 +106,8 @@ private:
 	void _update_child_controls();
 
 	Size2i content_scale_size;
-	ContentScaleMode content_scale_mode;
+	ContentScaleMode content_scale_mode = CONTENT_SCALE_MODE_DISABLED;
-	ContentScaleAspect content_scale_aspect;
+	ContentScaleAspect content_scale_aspect = CONTENT_SCALE_ASPECT_IGNORE;
 
 	void _make_window();
 	void _clear_window();