Allow opening scenes with missing scene dependency

1 files changed, 21 insertions, 2 deletions

diff --git a/scene/main/missing_node.cpp b/scene/main/missing_node.cpp
index 49e565a39c..02e079892c 100644
--- a/scene/main/missing_node.cpp
+++ b/scene/main/missing_node.cpp
@@ -66,6 +66,14 @@ String MissingNode::get_original_class() const {
 	return original_class;
 }
 
+void MissingNode::set_original_scene(const String &p_scene) {
+	original_scene = p_scene;
+}
+
+String MissingNode::get_original_scene() const {
+	return original_scene;
+}
+
 void MissingNode::set_recording_properties(bool p_enable) {
 	recording_properties = p_enable;
 }
@@ -77,8 +85,15 @@ bool MissingNode::is_recording_properties() const {
 Array MissingNode::get_configuration_warnings() const {
 	// The mere existence of this node is warning.
 	Array ret;
-	ret.push_back(vformat(RTR("This node was saved as class type '%s', which was no longer available when this scene was loaded."), original_class));
-	ret.push_back(RTR("Data from the original node is kept as a placeholder until this type of node is available again. It can hence be safely re-saved without risk of data loss."));
+	if (!original_scene.is_empty()) {
+		ret.push_back(vformat(RTR("This node was an instance of scene '%s', which was no longer available when this scene was loaded."), original_scene));
+		ret.push_back(vformat(RTR("Saving current scene will discard instance and all its properties, including editable children edits (if existing).")));
+	} else if (!original_class.is_empty()) {
+		ret.push_back(vformat(RTR("This node was saved as class type '%s', which was no longer available when this scene was loaded."), original_class));
+		ret.push_back(RTR("Data from the original node is kept as a placeholder until this type of node is available again. It can hence be safely re-saved without risk of data loss."));
+	} else {
+		ret.push_back(RTR("Unrecognized missing node. Check scene dependency errors for details."));
+	}
 	return ret;
 }
 
@@ -86,11 +101,15 @@ void MissingNode::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("set_original_class", "name"), &MissingNode::set_original_class);
 	ClassDB::bind_method(D_METHOD("get_original_class"), &MissingNode::get_original_class);
 
+	ClassDB::bind_method(D_METHOD("set_original_scene", "name"), &MissingNode::set_original_class);
+	ClassDB::bind_method(D_METHOD("get_original_scene"), &MissingNode::get_original_class);
+
 	ClassDB::bind_method(D_METHOD("set_recording_properties", "enable"), &MissingNode::set_recording_properties);
 	ClassDB::bind_method(D_METHOD("is_recording_properties"), &MissingNode::is_recording_properties);
 
 	// Expose, but not save.
 	ADD_PROPERTY(PropertyInfo(Variant::STRING, "original_class", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NONE), "set_original_class", "get_original_class");
+	ADD_PROPERTY(PropertyInfo(Variant::STRING, "original_scene", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NONE), "set_original_scene", "get_original_scene");
 	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "recording_properties", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NONE), "set_recording_properties", "is_recording_properties");
 }