Implement initiative rolling within Foundry

module/documents/Actor/Handler.mjs

@@ -96,5 +96,10 @@ export class ActorHandler extends Actor {
 		return this.proxyFunction("_preUpdate", ...args);
 	};
 
-	useRestDie() { return this.proxyFunction("useRestDie"); };
+	getRollData() {
+		if (!this.fn?.getRollData) return {};
+		return this.fn?.getRollData.bind(this)();
+	};
+
+	useRestDie() {return this.proxyFunction("useRestDie")};
 };

module/documents/Actor/Mob.mjs

@@ -1 +1,11 @@
-export default {};
+/** @this {Actor} */
+function getRollData() {
+	const data = {
+		initiative: this.system.initiative ?? 0,
+	};
+	return data;
+};
+
+export default {
+	getRollData,
+};

module/documents/Actor/Player.mjs

@@ -132,6 +132,14 @@ async function preUntypedEmbed(item) {
 	};
 };
 
+/** @this {Actor} */
+function getRollData() {
+	const data = {
+		initiative: this.system.stats.hands ?? 0,
+	};
+	return data;
+};
+
 export default {
 	atAspectLimit,
 	createCustomItem,
@@ -142,4 +150,5 @@ export default {
 	genericEmbeddedDelete,
 	preAspectEmbed,
 	preUntypedEmbed,
+	getRollData,
 };

system.json

@@ -35,5 +35,6 @@
 			"extensions": ["css", "hbs", "json", "js", "mjs", "svg"],
 			"paths": ["templates", "langs", ".styles", "module", "assets"]
 		}
-	}
+	},
+	"initiative": "@initiative"
 }