ds4/src/module/rolls/roll.ts

import { DS4Check } from "./check";

export class DS4Roll<D extends Record<string, unknown> = Record<string, unknown>> extends Roll<D> {
    static CHAT_TEMPLATE = "systems/ds4/templates/dice/roll.hbs";

    /**
     * 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.
     * @override
     */
    async render(chatOptions: Roll.ChatOptions = {}): Promise<string> {
        chatOptions = mergeObject(
            {
                user: game.user?._id,
                flavor: null,
                template: DS4Roll.CHAT_TEMPLATE,
                blind: false,
            },
            chatOptions,
        );
        const isPrivate = chatOptions.isPrivate;

        // Execute the roll, if needed
        if (!this._rolled) this.roll();

        // Define chat data
        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 : chatOptions.flavor,
            user: chatOptions.user,
            tooltip: isPrivate ? "" : await this.getTooltip(),
            total: isPrivate ? "?" : Math.round((this.total ?? 0) * 100) / 100,
            isCoup: isPrivate ? null : isCoup,
            isFumble: isPrivate ? null : isFumble,
        };

        // Render the roll display template
        return renderTemplate(chatOptions.template ?? "", chatData);
    }
}