Camera2D code cleanup

scene/2d/camera_2d.cpp

@@ -86,20 +86,12 @@ bool Camera2D::_edit_use_rect() const {
 }
 #endif // DEBUG_ENABLED
 
-bool Camera2D::_is_editing_in_editor() const {
-#ifdef TOOLS_ENABLED
-	return is_part_of_edited_scene();
-#else
-	return false;
-#endif // TOOLS_ENABLED
-}
-
 void Camera2D::_update_scroll() {
 	if (!is_inside_tree() || !viewport) {
 		return;
 	}
 
-	if (_is_editing_in_editor()) {
+	if (is_part_of_edited_scene()) {
 		queue_redraw();
 		return;
 	}
@@ -149,7 +141,7 @@ void Camera2D::_update_process_callback() {
 			WARN_PRINT_ONCE("Camera2D overridden to physics process mode due to use of physics interpolation.");
 		}
 #endif
-	} else if (_is_editing_in_editor()) {
+	} else if (is_part_of_edited_scene()) {
 		set_process_internal(false);
 		set_physics_process_internal(false);
 	} else {
@@ -164,7 +156,7 @@ void Camera2D::_update_process_callback() {
 }
 
 void Camera2D::set_zoom(const Vector2 &p_zoom) {
-	// Setting zoom to zero causes 'affine_invert' issues
+	// Setting zoom to zero causes 'affine_invert' issues.
 	ERR_FAIL_COND_MSG(Math::is_zero_approx(p_zoom.x) || Math::is_zero_approx(p_zoom.y), "Zoom level must be different from 0 (can be negative).");
 
 	zoom = p_zoom;
@@ -192,7 +184,7 @@ Transform2D Camera2D::get_camera_transform() {
 
 	if (!first) {
 		if (anchor_mode == ANCHOR_MODE_DRAG_CENTER) {
-			if (drag_horizontal_enabled && !_is_editing_in_editor() && !drag_horizontal_offset_changed) {
+			if (drag_horizontal_enabled && !is_part_of_edited_scene() && !drag_horizontal_offset_changed) {
 				camera_pos.x = MIN(camera_pos.x, (new_camera_pos.x + screen_size.x * 0.5 * zoom_scale.x * drag_margin[SIDE_LEFT]));
 				camera_pos.x = MAX(camera_pos.x, (new_camera_pos.x - screen_size.x * 0.5 * zoom_scale.x * drag_margin[SIDE_RIGHT]));
 			} else {
@@ -205,7 +197,7 @@ Transform2D Camera2D::get_camera_transform() {
 				drag_horizontal_offset_changed = false;
 			}
 
-			if (drag_vertical_enabled && !_is_editing_in_editor() && !drag_vertical_offset_changed) {
+			if (drag_vertical_enabled && !is_part_of_edited_scene() && !drag_vertical_offset_changed) {
 				camera_pos.y = MIN(camera_pos.y, (new_camera_pos.y + screen_size.y * 0.5 * zoom_scale.y * drag_margin[SIDE_TOP]));
 				camera_pos.y = MAX(camera_pos.y, (new_camera_pos.y - screen_size.y * 0.5 * zoom_scale.y * drag_margin[SIDE_BOTTOM]));
 
@@ -249,7 +241,7 @@ Transform2D Camera2D::get_camera_transform() {
 		// It may be called MULTIPLE TIMES on certain frames,
 		// therefore smoothing is not currently applied only once per frame / tick,
 		// which will result in some haphazard results.
-		if (position_smoothing_enabled && !_is_editing_in_editor()) {
+		if (position_smoothing_enabled && !is_part_of_edited_scene()) {
 			bool physics_process = (process_callback == CAMERA2D_PROCESS_PHYSICS) || is_physics_interpolated_and_enabled();
 			real_t delta = physics_process ? get_physics_process_delta_time() : get_process_delta_time();
 			real_t c = position_smoothing_speed * delta;
@@ -268,7 +260,7 @@ Transform2D Camera2D::get_camera_transform() {
 	Point2 screen_offset = (anchor_mode == ANCHOR_MODE_DRAG_CENTER ? (screen_size * 0.5 * zoom_scale) : Point2());
 
 	if (!ignore_rotation) {
-		if (rotation_smoothing_enabled && !_is_editing_in_editor()) {
+		if (rotation_smoothing_enabled && !is_part_of_edited_scene()) {
 			real_t step = rotation_smoothing_speed * (process_callback == CAMERA2D_PROCESS_PHYSICS ? get_physics_process_delta_time() : get_process_delta_time());
 			camera_angle = Math::lerp_angle(camera_angle, get_global_rotation(), step);
 		} else {
@@ -368,7 +360,7 @@ void Camera2D::_notification(int p_what) {
 		} break;
 
 		case NOTIFICATION_TRANSFORM_CHANGED: {
-			if ((!position_smoothing_enabled && !is_physics_interpolated_and_enabled()) || _is_editing_in_editor()) {
+			if ((!position_smoothing_enabled && !is_physics_interpolated_and_enabled()) || is_part_of_edited_scene()) {
 				_update_scroll();
 			}
 			if (is_physics_interpolated_and_enabled()) {
@@ -396,7 +388,7 @@ void Camera2D::_notification(int p_what) {
 			add_to_group(group_name);
 			add_to_group(canvas_group_name);
 
-			if (!_is_editing_in_editor() && enabled && !viewport->get_camera_2d()) {
+			if (!is_part_of_edited_scene() && enabled && !viewport->get_camera_2d()) {
 				make_current();
 			}
 
@@ -427,7 +419,7 @@ void Camera2D::_notification(int p_what) {
 
 #ifdef TOOLS_ENABLED
 		case NOTIFICATION_DRAW: {
-			if (!is_inside_tree() || !_is_editing_in_editor()) {
+			if (!is_inside_tree() || !is_part_of_edited_scene()) {
 				break;
 			}
 
@@ -504,6 +496,9 @@ void Camera2D::_notification(int p_what) {
 }
 
 void Camera2D::set_offset(const Vector2 &p_offset) {
+	if (offset == p_offset) {
+		return;
+	}
 	offset = p_offset;
 	Point2 old_smoothed_camera_pos = smoothed_camera_pos;
 	_update_scroll();
@@ -515,6 +510,9 @@ Vector2 Camera2D::get_offset() const {
 }
 
 void Camera2D::set_anchor_mode(AnchorMode p_anchor_mode) {
+	if (anchor_mode == p_anchor_mode) {
+		return;
+	}
 	anchor_mode = p_anchor_mode;
 	_update_scroll();
 }
@@ -524,6 +522,9 @@ Camera2D::AnchorMode Camera2D::get_anchor_mode() const {
 }
 
 void Camera2D::set_ignore_rotation(bool p_ignore) {
+	if (ignore_rotation == p_ignore) {
+		return;
+	}
 	ignore_rotation = p_ignore;
 	Point2 old_smoothed_camera_pos = smoothed_camera_pos;
 
@@ -541,13 +542,13 @@ bool Camera2D::is_ignoring_rotation() const {
 }
 
 void Camera2D::set_limit_enabled(bool p_limit_enabled) {
-	if (p_limit_enabled == limit_enabled) {
+	if (limit_enabled == p_limit_enabled) {
 		return;
 	}
 	limit_enabled = p_limit_enabled;
 	_update_scroll();
 #ifdef TOOLS_ENABLED
-	emit_signal("_camera_limit_enabled_updated"); // Used for Camera2DEditorPlugin
+	emit_signal("_camera_limit_enabled_updated"); // Used for Camera2DEditorPlugin.
 #endif
 	notify_property_list_changed();
 }
@@ -566,6 +567,9 @@ void Camera2D::set_process_callback(Camera2DProcessCallback p_mode) {
 }
 
 void Camera2D::set_enabled(bool p_enabled) {
+	if (enabled == p_enabled) {
+		return;
+	}
 	enabled = p_enabled;
 
 	if (!is_inside_tree()) {
@@ -613,7 +617,7 @@ void Camera2D::_make_current(Object *p_which) {
 }
 
 void Camera2D::_update_process_internal_for_smoothing() {
-	bool is_not_in_scene_or_editor = !(is_inside_tree() && _is_editing_in_editor());
+	bool is_not_in_scene_or_editor = !(is_inside_tree() && is_part_of_edited_scene());
 	bool is_any_smoothing_valid = position_smoothing_speed > 0 || rotation_smoothing_speed > 0;
 
 	bool enable = is_any_smoothing_valid && is_not_in_scene_or_editor;
@@ -670,6 +674,9 @@ bool Camera2D::is_current() const {
 
 void Camera2D::set_limit(Side p_side, int p_limit) {
 	ERR_FAIL_INDEX((int)p_side, 4);
+	if (limit[p_side] == p_limit) {
+		return;
+	}
 	limit[p_side] = p_limit;
 	Point2 old_smoothed_camera_pos = smoothed_camera_pos;
 	_update_scroll();
@@ -681,8 +688,11 @@ int Camera2D::get_limit(Side p_side) const {
 	return limit[p_side];
 }
 
-void Camera2D::set_limit_smoothing_enabled(bool enable) {
-	limit_smoothing_enabled = enable;
+void Camera2D::set_limit_smoothing_enabled(bool p_enabled) {
+	if (limit_smoothing_enabled == p_enabled) {
+		return;
+	}
+	limit_smoothing_enabled = p_enabled;
 	_update_scroll();
 }
 
@@ -692,6 +702,9 @@ bool Camera2D::is_limit_smoothing_enabled() const {
 
 void Camera2D::set_drag_margin(Side p_side, real_t p_drag_margin) {
 	ERR_FAIL_INDEX((int)p_side, 4);
+	if (drag_margin[p_side] == p_drag_margin) {
+		return;
+	}
 	drag_margin[p_side] = p_drag_margin;
 	queue_redraw();
 }
@@ -739,6 +752,9 @@ void Camera2D::align() {
 }
 
 void Camera2D::set_position_smoothing_speed(real_t p_speed) {
+	if (position_smoothing_speed == p_speed) {
+		return;
+	}
 	position_smoothing_speed = MAX(0, p_speed);
 	_update_process_internal_for_smoothing();
 }
@@ -748,6 +764,9 @@ real_t Camera2D::get_position_smoothing_speed() const {
 }
 
 void Camera2D::set_rotation_smoothing_speed(real_t p_speed) {
+	if (rotation_smoothing_speed == p_speed) {
+		return;
+	}
 	rotation_smoothing_speed = MAX(0, p_speed);
 	_update_process_internal_for_smoothing();
 }
@@ -757,6 +776,9 @@ real_t Camera2D::get_rotation_smoothing_speed() const {
 }
 
 void Camera2D::set_rotation_smoothing_enabled(bool p_enabled) {
+	if (rotation_smoothing_enabled == p_enabled) {
+		return;
+	}
 	rotation_smoothing_enabled = p_enabled;
 	notify_property_list_changed();
 }
@@ -770,7 +792,7 @@ Point2 Camera2D::get_camera_screen_center() const {
 }
 
 Size2 Camera2D::_get_camera_screen_size() const {
-	if (_is_editing_in_editor()) {
+	if (is_part_of_edited_scene()) {
 		return Size2(GLOBAL_GET("display/window/size/viewport_width"), GLOBAL_GET("display/window/size/viewport_height"));
 	}
 	return get_viewport_rect().size;
@@ -793,6 +815,9 @@ bool Camera2D::is_drag_vertical_enabled() const {
 }
 
 void Camera2D::set_drag_vertical_offset(real_t p_offset) {
+	if (drag_vertical_offset == p_offset) {
+		return;
+	}
 	drag_vertical_offset = p_offset;
 	drag_vertical_offset_changed = true;
 	Point2 old_smoothed_camera_pos = smoothed_camera_pos;
@@ -805,6 +830,9 @@ real_t Camera2D::get_drag_vertical_offset() const {
 }
 
 void Camera2D::set_drag_horizontal_offset(real_t p_offset) {
+	if (drag_horizontal_offset == p_offset) {
+		return;
+	}
 	drag_horizontal_offset = p_offset;
 	drag_horizontal_offset_changed = true;
 	Point2 old_smoothed_camera_pos = smoothed_camera_pos;
@@ -816,15 +844,10 @@ real_t Camera2D::get_drag_horizontal_offset() const {
 	return drag_horizontal_offset;
 }
 
-void Camera2D::_set_old_smoothing(real_t p_enable) {
-	//compatibility
-	if (p_enable > 0) {
-		position_smoothing_enabled = true;
-		set_position_smoothing_speed(p_enable);
-	}
-}
-
 void Camera2D::set_position_smoothing_enabled(bool p_enabled) {
+	if (position_smoothing_enabled == p_enabled) {
+		return;
+	}
 	position_smoothing_enabled = p_enabled;
 	notify_property_list_changed();
 }
@@ -835,6 +858,10 @@ bool Camera2D::is_position_smoothing_enabled() const {
 
 void Camera2D::set_custom_viewport(Node *p_viewport) {
 	ERR_FAIL_NULL(p_viewport);
+	if (custom_viewport == p_viewport) {
+		return;
+	}
+
 	if (is_inside_tree()) {
 		remove_from_group(group_name);
 		remove_from_group(canvas_group_name);
@@ -867,8 +894,8 @@ Node *Camera2D::get_custom_viewport() const {
 	return custom_viewport;
 }
 
-void Camera2D::set_screen_drawing_enabled(bool enable) {
-	screen_drawing_enabled = enable;
+void Camera2D::set_screen_drawing_enabled(bool p_enabled) {
+	screen_drawing_enabled = p_enabled;
 #ifdef TOOLS_ENABLED
 	queue_redraw();
 #endif
@@ -878,8 +905,8 @@ bool Camera2D::is_screen_drawing_enabled() const {
 	return screen_drawing_enabled;
 }
 
-void Camera2D::set_limit_drawing_enabled(bool enable) {
-	limit_drawing_enabled = enable;
+void Camera2D::set_limit_drawing_enabled(bool p_enabled) {
+	limit_drawing_enabled = p_enabled;
 #ifdef TOOLS_ENABLED
 	queue_redraw();
 #endif
@@ -889,8 +916,8 @@ bool Camera2D::is_limit_drawing_enabled() const {
 	return limit_drawing_enabled;
 }
 
-void Camera2D::set_margin_drawing_enabled(bool enable) {
-	margin_drawing_enabled = enable;
+void Camera2D::set_margin_drawing_enabled(bool p_enabled) {
+	margin_drawing_enabled = p_enabled;
 #ifdef TOOLS_ENABLED
 	queue_redraw();
 #endif
@@ -983,8 +1010,6 @@ void Camera2D::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("reset_smoothing"), &Camera2D::reset_smoothing);
 	ClassDB::bind_method(D_METHOD("align"), &Camera2D::align);
 
-	ClassDB::bind_method(D_METHOD("_set_old_smoothing", "follow_smoothing"), &Camera2D::_set_old_smoothing);
-
 	ClassDB::bind_method(D_METHOD("set_screen_drawing_enabled", "screen_drawing_enabled"), &Camera2D::set_screen_drawing_enabled);
 	ClassDB::bind_method(D_METHOD("is_screen_drawing_enabled"), &Camera2D::is_screen_drawing_enabled);
 
@@ -1040,20 +1065,10 @@ void Camera2D::_bind_methods() {
 }
 
 Camera2D::Camera2D() {
-	limit[SIDE_LEFT] = -10000000;
-	limit[SIDE_TOP] = -10000000;
-	limit[SIDE_RIGHT] = 10000000;
-	limit[SIDE_BOTTOM] = 10000000;
-
-	drag_margin[SIDE_LEFT] = 0.2;
-	drag_margin[SIDE_TOP] = 0.2;
-	drag_margin[SIDE_RIGHT] = 0.2;
-	drag_margin[SIDE_BOTTOM] = 0.2;
-
 	set_notify_transform(true);
 	set_hide_clip_children(true);
 
 #ifdef TOOLS_ENABLED
-	add_user_signal(MethodInfo("_camera_limit_enabled_updated")); // Camera2DEditorPlugin listens to this
+	add_user_signal(MethodInfo("_camera_limit_enabled_updated")); // Camera2DEditorPlugin listens to this.
 #endif
 }

scene/2d/camera_2d.h

@@ -52,7 +52,7 @@ protected:
 	bool first = true;
 	bool just_exited_tree = false;
 
-	ObjectID custom_viewport_id; // to check validity
+	ObjectID custom_viewport_id; // To check validity.
 	Viewport *custom_viewport = nullptr;
 	Viewport *viewport = nullptr;
 
@@ -73,10 +73,10 @@ protected:
 	bool rotation_smoothing_enabled = false;
 
 	bool limit_enabled = true;
-	int limit[4];
+	int limit[4] = { -10000000, -10000000, 10000000, 10000000 }; // Left, top, right, bottom.
 	bool limit_smoothing_enabled = false;
 
-	real_t drag_margin[4];
+	real_t drag_margin[4] = { 0.2, 0.2, 0.2, 0.2 };
 	bool drag_horizontal_enabled = false;
 	bool drag_vertical_enabled = false;
 	real_t drag_horizontal_offset = 0.0;
@@ -97,8 +97,6 @@ protected:
 	void _make_current(Object *p_which);
 	void _reset_just_exited() { just_exited_tree = false; }
 
-	void _set_old_smoothing(real_t p_enable);
-
 	void _update_process_internal_for_smoothing();
 
 	void _set_limit_rect(const Rect2 &p_limit_rect);
@@ -160,7 +158,7 @@ public:
 	void set_limit(Side p_side, int p_limit);
 	int get_limit(Side p_side) const;
 
-	void set_limit_smoothing_enabled(bool enable);
+	void set_limit_smoothing_enabled(bool p_enabled);
 	bool is_limit_smoothing_enabled() const;
 
 	void set_drag_horizontal_enabled(bool p_enabled);
@@ -213,13 +211,13 @@ public:
 	void reset_smoothing();
 	void align();
 
-	void set_screen_drawing_enabled(bool enable);
+	void set_screen_drawing_enabled(bool p_enabled);
 	bool is_screen_drawing_enabled() const;
 
-	void set_limit_drawing_enabled(bool enable);
+	void set_limit_drawing_enabled(bool p_enabled);
 	bool is_limit_drawing_enabled() const;
 
-	void set_margin_drawing_enabled(bool enable);
+	void set_margin_drawing_enabled(bool p_enabled);
 	bool is_margin_drawing_enabled() const;
 
 	Camera2D();