Split ball spawner helpers

index.html

@@ -122,6 +122,7 @@
         <script src="./src/scene-registry.js"></script>
         <script src="./src/ui.js"></script>
         <script src="./src/storage.js"></script>
+        <script src="./src/spawn-balls.js"></script>
         <script src="./src/spawn.js"></script>
         <script src="./src/goals.js"></script>
         <script src="./src/chain-controller.js"></script>