Add initiative rolls

module/documents/combatant.mjs

@@ -0,0 +1,18 @@
+export default class AwECombatant extends Combatant {
+  /**
+   * Initiative = 1d20 + highest attribute modifier.
+   * @override
+   */
+  getInitiativeRoll(formula) {
+    const actor = this.actor
+    if (!actor) return super.getInitiativeRoll(formula)
+
+    const attrs = actor.system?.attributes ?? {}
+    const mods = ["agility", "awareness", "fitness", "influence"]
+      .map(k => attrs[k]?.mod ?? 0)
+    const highest = Math.max(...mods)
+
+    const rollFormula = highest >= 0 ? `1d20 + ${highest}` : `1d20 - ${Math.abs(highest)}`
+    return Roll.create(rollFormula)
+  }
+}