lighting

kiln-core/src/object_def.rs

@@ -51,6 +51,11 @@ pub struct ObjectDef {
     /// remove itself via `die()`). Set when a grab archetype (e.g. a gem) is
     /// expanded into an object. Defaults to `false`.
     pub grab: bool,
+    /// Light radius in cells that this object emits on a `dark` board (0 = no
+    /// light). The emitted *color* is this object's own glyph foreground color,
+    /// so a red glyph casts red light. See [`crate::fov`] for the lighting model.
+    /// Scripts can change it at runtime via `set_light(n)`. Defaults to `0`.
+    pub light: u32,
     /// Compile-key of the Rhai script that drives this object: a name in
     /// [`World::scripts`](crate::world::World::scripts) for a hand-authored object,
     /// or a synthetic `BUILTIN_*` name set when a script-backed archetype is
@@ -102,6 +107,7 @@ impl ObjectDef {
             opaque: true,
             pushable: false,
             grab: false,
+            light: 0,
             script_name: None,
             builtin_script: None,
             tags: HashSet::new(),