refactor: convert to ECMAScript where necessary

Also drop @league-of-foundry-developers/foundry-vtt-types.

src/dice/roll.js

@@ -0,0 +1,34 @@
+// SPDX-FileCopyrightText: 2021 Johannes Loher
+//
+// SPDX-License-Identifier: MIT
+
+import { getGame } from "../utils/utils";
+import { DS4Check } from "./check";
+
+export class DS4Roll extends Roll {
+    /** @override */
+    static CHAT_TEMPLATE = "systems/ds4/templates/dice/roll.hbs";
+
+    /**
+     * @override
+     * @remarks
+     * This only differs from {@link Roll#render} in that it provides `isCoup` and `isFumble` properties to the roll
+     * template if the first dice term is a ds4 check.
+     */
+    async render({ flavor, template = this.constructor.CHAT_TEMPLATE, isPrivate = false } = {}) {
+        if (!this._evaluated) await this.evaluate({ async: true });
+        const firstDiceTerm = this.dice[0];
+        const isCoup = firstDiceTerm instanceof DS4Check && firstDiceTerm.coup;
+        const isFumble = firstDiceTerm instanceof DS4Check && firstDiceTerm.fumble;
+        const chatData = {
+            formula: isPrivate ? "???" : this._formula,
+            flavor: isPrivate ? null : flavor,
+            user: getGame().user?.id,
+            tooltip: isPrivate ? "" : await this.getTooltip(),
+            total: isPrivate ? "?" : Math.round((this.total ?? 0) * 100) / 100,
+            isCoup: isPrivate ? null : isCoup,
+            isFumble: isPrivate ? null : isFumble,
+        };
+        return renderTemplate(template, chatData);
+    }
+}