do not change resource uuid when moving it in the editor

fyrox-resource/src/manager.rs

@@ -650,7 +650,7 @@ impl ResourceManagerState {
                                 }
                             }
                         }
-                        notify::EventKind::Create(_) => {
+                        notify::EventKind::Create(_) if !registry.is_registered(&relative_path) => {
                             let uuid = Uuid::new_v4();
                             match registry.modify().write_metadata(uuid, &relative_path) {
                                 Ok(old_path) => {

fyrox-resource/src/registry.rs

@@ -426,6 +426,11 @@ impl ResourceRegistry {
             .find_map(|(k, v)| if v == path { Some(*k) } else { None })
     }
 
+    /// Checks if the path is registered in the resource registry.
+    pub fn is_registered(&self, path: &Path) -> bool {
+        self.path_to_uuid(path).is_some()
+    }
+
     /// Searches for supported resources starting from the given path and builds a mapping `UUID -> Path`.
     /// If a supported resource does not have a metadata file besides it, this method will automatically
     /// add it with a new UUID and add the resource to the registry.