diff -r 1fa2f38c5700 -r c3971b38bbfa rust/lib-hedgewars-engine/src/instance.rs
--- a/rust/lib-hedgewars-engine/src/instance.rs	Fri Jun 25 22:34:26 2021 +0200
+++ b/rust/lib-hedgewars-engine/src/instance.rs	Sat Jun 26 00:13:28 2021 +0200
@@ -55,6 +55,7 @@
     fn process_config_message(&mut self, message: &ConfigEngineMessage) {
         match message {
             SetSeed(seed) => self.world.set_seed(seed.as_bytes()),
+            SetFeatureSize(feature_size) => self.world.set_feature_size(*feature_size),
             _ => unimplemented!(),
         }
     }