Add debug visual for NavigationRegion2D bake rect

Adds debug visual for NavigationRegion2D bake rect.

Author: smix8

scene/2d/navigation_region_2d.cpp

@@ -177,6 +177,7 @@ void NavigationRegion2D::_notification(int p_what) {
 			if (is_inside_tree() && (Engine::get_singleton()->is_editor_hint() || NavigationServer2D::get_singleton()->get_debug_enabled()) && navigation_polygon.is_valid()) {
 				_update_debug_mesh();
 				_update_debug_edge_connections_mesh();
+				_update_debug_baking_rect();
 			}
 #endif // DEBUG_ENABLED
 		} break;
@@ -659,3 +660,15 @@ void NavigationRegion2D::_update_debug_edge_connections_mesh() {
 	}
 }
 #endif // DEBUG_ENABLED
+
+#ifdef DEBUG_ENABLED
+void NavigationRegion2D::_update_debug_baking_rect() {
+	Rect2 baking_rect = get_navigation_polygon()->get_baking_rect();
+	if (baking_rect.has_area()) {
+		Vector2 baking_rect_offset = get_navigation_polygon()->get_baking_rect_offset();
+		Rect2 debug_baking_rect = Rect2(baking_rect.position.x + baking_rect_offset.x, baking_rect.position.y + baking_rect_offset.y, baking_rect.size.x, baking_rect.size.y);
+		Color debug_baking_rect_color = Color(0.8, 0.5, 0.7, 0.1);
+		draw_rect(debug_baking_rect, debug_baking_rect_color);
+	}
+}
+#endif // DEBUG_ENABLED

scene/2d/navigation_region_2d.h

@@ -58,6 +58,7 @@ class NavigationRegion2D : public Node2D {
 private:
 	void _update_debug_mesh();
 	void _update_debug_edge_connections_mesh();
+	void _update_debug_baking_rect();
 	void _navigation_map_changed(RID p_map);
 	void _navigation_debug_changed();
 #endif // DEBUG_ENABLED