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Fix potential crash due to invalid navigation mesh ref 

Fixes potential crash due to invalid navigation mesh ref, e.g. due to NavigationPolygon call unref() internally while the resource is still in the update queue of the server.
This commit is contained in:
smix8 2024-06-21 11:15:12 +02:00
parent 04a530f91f
commit d98a2b1a8b
1 changed files with 2 additions and 2 deletions
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4
modules/navigation/nav_region.cpp
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@ -84,11 +84,11 @@ void NavRegion::set_transform(Transform3D p_transform) {
void NavRegion::set_navigation_mesh(Ref<NavigationMesh> p_navigation_mesh) {
#ifdef DEBUG_ENABLED
if (map && !Math::is_equal_approx(double(map->get_cell_size()), double(p_navigation_mesh->get_cell_size()))) {
if (map && p_navigation_mesh.is_valid() && !Math::is_equal_approx(double(map->get_cell_size()), double(p_navigation_mesh->get_cell_size()))) {
ERR_PRINT_ONCE(vformat("Attempted to update a navigation region with a navigation mesh that uses a `cell_size` of %s while assigned to a navigation map set to a `cell_size` of %s. The cell size for navigation maps can be changed by using the NavigationServer map_set_cell_size() function. The cell size for default navigation maps can also be changed in the ProjectSettings.", double(p_navigation_mesh->get_cell_size()), double(map->get_cell_size())));
}
if (map && !Math::is_equal_approx(double(map->get_cell_height()), double(p_navigation_mesh->get_cell_height()))) {
if (map && p_navigation_mesh.is_valid() && !Math::is_equal_approx(double(map->get_cell_height()), double(p_navigation_mesh->get_cell_height()))) {
ERR_PRINT_ONCE(vformat("Attempted to update a navigation region with a navigation mesh that uses a `cell_height` of %s while assigned to a navigation map set to a `cell_height` of %s. The cell height for navigation maps can be changed by using the NavigationServer map_set_cell_height() function. The cell height for default navigation maps can also be changed in the ProjectSettings.", double(p_navigation_mesh->get_cell_height()), double(map->get_cell_height())));
}
#endif // DEBUG_ENABLED