actor classes

module/documents/npc.mjs

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+import { TotemActor } from "./actor.mjs";
+/**
+ * Extend the base Actor document by defining a custom roll data structure which is ideal for the Simple system.
+ * @extends {TotemActor}
+ */
+export class TotemNpc extends TotemActor {
+
+  /** @override */
+  prepareData() {
+    // Prepare data for the actor. Calling the super version of this executes
+    // the following, in order: data reset (to clear active effects),
+    // prepareBaseData(), prepareEmbeddedDocuments() (including active effects),
+    // prepareDerivedData().
+    super.prepareData();
+  }
+
+  /** @override */
+  prepareBaseData() {
+    // Data modifications in this step occur before processing embedded
+    // documents or derived data.
+  }
+
+  /**
+   * @override
+   * Augment the basic actor data with additional dynamic data. Typically,
+   * you'll want to handle most of your calculated/derived data in this step.
+   * Data calculated in this step should generally not exist in template.json
+   * (such as ability modifiers rather than ability scores) and should be
+   * available both inside and outside of character sheets (such as if an actor
+   * is queried and has a roll executed directly from it).
+   */
+  prepareDerivedData() {
+    const actorData = this;
+    const systemData = actorData.system;
+    const flags = actorData.flags.totem || {};
+
+    // Make separate methods for each Actor type (character, npc, etc.) to keep
+    // things organized.
+    this._prepareNpcData(actorData);
+  }
+
+  
+
+  /**
+   * Prepare NPC type specific data.
+   */
+  _prepareNpcData(actorData) {
+    if (actorData.type !== 'npc') return;
+
+    // Make modifications to data here. For example:
+    const systemData = actorData.system;
+    systemData.xp = (systemData.cr * systemData.cr) * 100;
+  }
+
+  /**
+   * Override getRollData() that's supplied to rolls.
+   */
+  getRollData() {
+    const data = super.getRollData();
+
+    // Prepare character roll data.
+    this._getNpcRollData(data);
+
+    return data;
+  }
+
+  /**
+   * Prepare NPC roll data.
+   */
+  _getNpcRollData(data) {
+    if (this.type !== 'npc') return;
+
+    // Process additional NPC data here.
+  }
+
+}