now dropped items can produce light (e.g. dropped torch)

src/net/torvald/terrarum/gameactors/ActorWithBody.kt

@@ -41,6 +41,28 @@ open class ActorWithBody : Actor {
 
     var physProp = PhysProperties.HUMANOID_DEFAULT
 
+    // copied from old interface Luminous
+    /**
+     * Arguments:
+     *
+     * Hitbox(x-offset, y-offset, width, height)
+     * (Use ArrayList for normal circumstances)
+     *
+     * NOTE: MUST NOT SERIALISE (use `@Transient`)
+     */
+    open var lightBoxList: List<Lightbox> = emptyList()
+
+    /**
+     * Arguments:
+     *
+     * Hitbox(x-offset, y-offset, width, height)
+     * (Use ArrayList for normal circumstances)
+     *
+     * NOTE: MUST NOT SERIALISE (use `@Transient`)
+     */
+    open var shadeBoxList: List<Lightbox> = emptyList()
+    // end of Luminous
+
     protected constructor() : super()
 
     constructor(renderOrder: RenderOrder, physProp: PhysProperties, id: ActorID? = null) : super(renderOrder, id) {

src/net/torvald/terrarum/gameactors/Luminous.kt

@@ -22,8 +22,10 @@ class Lightbox() {
  * For actors that either emits or blocks lights
  *
  * Created by minjaesong on 2016-02-19.
+ *
+ * the interface Luminous is merged with the ActorWithBody -- minjaesong on 2022-09-11
  */
-interface Luminous {
+/*interface Luminous {
 
     /**
      * Arguments:
@@ -44,4 +46,4 @@ interface Luminous {
      * NOTE: MUST NOT SERIALISE (use `@Transient`)
      */
     val shadeBoxList: List<Lightbox>
-}
+}*/