2 files changed, 29 insertions, 1 deletions
diff --git a/core/resource.cpp b/core/resource.cpp
index 74c93cd790..74e2c1ed6b 100644
--- a/core/resource.cpp
+++ b/core/resource.cpp
@@ -363,6 +363,26 @@ bool Resource::is_translation_remapped() const {
 	return remapped_list.in_list();
 }
 
+#ifdef TOOLS_ENABLED
+//helps keep IDs same number when loading/saving scenes. -1 clears ID and it Returns -1 when no id stored
+void Resource::set_id_for_path(const String &p_path, int p_id) {
+	if (p_id == -1) {
+		id_for_path.erase(p_path);
+	} else {
+		id_for_path[p_path] = p_id;
+	}
+}
+
+int Resource::get_id_for_path(const String &p_path) const {
+
+	if (id_for_path.has(p_path)) {
+		return id_for_path[p_path];
+	} else {
+		return -1;
+	}
+}
+#endif
+
 void Resource::_bind_methods() {
 
 	ClassDB::bind_method(D_METHOD("set_path", "path"), &Resource::_set_path);
diff --git a/core/resource.h b/core/resource.h
index a4d9e998ac..853b2859c7 100644
--- a/core/resource.h
+++ b/core/resource.h
@@ -88,7 +88,9 @@ protected:
 
 	void _set_path(const String &p_path);
 	void _take_over_path(const String &p_path);
-
+#ifdef TOOLS_ENABLED
+	Map<String, int> id_for_path;
+#endif
 public:
 	static Node *(*_get_local_scene_func)(); //used by editor
 
@@ -137,6 +139,12 @@ public:
 
 	virtual RID get_rid() const; // some resources may offer conversion to RID
 
+#ifdef TOOLS_ENABLED
+	//helps keep IDs same number when loading/saving scenes. -1 clears ID and it Returns -1 when no id stored
+	void set_id_for_path(const String &p_path, int p_id);
+	int get_id_for_path(const String &p_path) const;
+#endif
+
 	Resource();
 	~Resource();
 };