spinners and fmt

kiln-core/src/builtin_scripts.rs

@@ -22,6 +22,10 @@ pub(crate) const BUILTIN_TAG_PREFIX: &str = "BUILTIN_";
 /// direction comes from the object's tag, so all pushers share one compiled AST.
 const PUSHER: &str = include_str!("scripts/pusher.rhai");
 
+/// The spinner behavior, embedded into the binary. Shared by both spin directions —
+/// direction comes from the object's tag, so all spinners share one compiled AST.
+const SPINNER: &str = include_str!("scripts/spinner.rhai");
+
 /// The tag identifying an object as the expanded form of `arch`, e.g.
 /// `"BUILTIN_pusher_east"`.
 pub(crate) fn builtin_tag(arch: Archetype) -> String {
@@ -41,6 +45,7 @@ pub(crate) fn archetype_from_builtin_tag(tag: &str) -> Option<Archetype> {
 pub(crate) fn archetype_script(arch: Archetype) -> Option<&'static str> {
     match arch {
         Archetype::Pusher(_) => Some(PUSHER),
+        Archetype::Spinner(_) => Some(SPINNER),
         _ => None,
     }
 }