Improve Simple Worldbuilding sheet layout and macro syntax

module/actor.js

@@ -0,0 +1,35 @@
+/**
+ * Extend the base Actor entity by defining a custom roll data structure which is ideal for the Simple system.
+ * @extends {Actor}
+ */
+export class SimpleActor extends Actor {
+
+  /** @override */
+  getRollData() {
+    const data = super.getRollData();
+    const shorthand = game.settings.get("worldbuilding", "macroShorthand");
+
+    // Re-map all attributes onto the base roll data
+    if ( !!shorthand ) {
+      for ( let [k, v] of Object.entries(data.attributes) ) {
+        if ( !(k in data) ) data[k] = v.value;
+      }
+      delete data.attributes;
+    }
+
+    // Map all items data using their slugified names
+    data.items = this.data.items.reduce((obj, i) => {
+      let key = i.name.slugify({strict: true});
+      let itemData = duplicate(i.data);
+      if ( !!shorthand ) {
+        for ( let [k, v] of Object.entries(itemData.attributes) ) {
+          if ( !(k in itemData) ) itemData[k] = v.value;
+        }
+        delete itemData["attributes"];
+      }
+      obj[key] = itemData;
+      return obj;
+    }, {});
+    return data;
+  }
+}