fix chunk errors when joining a world with a same name but different height

1 files changed, 14 insertions, 0 deletions

diff --git a/azalea-client/src/local_player.rs b/azalea-client/src/local_player.rs
index 455cc470..bf1609ab 100644
--- a/azalea-client/src/local_player.rs
+++ b/azalea-client/src/local_player.rs
@@ -144,6 +144,20 @@ impl InstanceHolder {
             ))),
         }
     }
+
+    /// Reset the `Instance` to a new reference to an empty instance, but with
+    /// the same registries as the current one.
+    ///
+    /// This is used by Azalea when entering the config state.
+    pub fn reset(&mut self) {
+        let registries = self.instance.read().registries.clone();
+
+        let mut new_instance = Instance::default();
+        new_instance.registries = registries;
+        self.instance = Arc::new(RwLock::new(new_instance));
+
+        self.partial_instance.write().reset();
+    }
 }
 
 #[derive(Error, Debug)]