yoni-mcscripts-lib/yoni/command/CommandQueue.js

为 Minecraft Script API 中的部分接口创建了 wrapper，并提供简单的事件管理器和任务管理器，另附有一些便于代码编写的一些小工具。

import { CommandQueueExecuteStatus } from "./CommandQueueExecuteStatus.js";
/**
 * contains command queue infos
 */
export class CommandQueue {
    sender;
    command;
    #status = CommandQueueExecuteStatus.executing;
    get status() {
        return this.#status;
    }
    #result;
    get result() {
        if (this.status === CommandQueueExecuteStatus.executing)
            throw new Error("command executing have not been done");
        return this.#result;
    }
    resolveResult(commandResult) {
        if (this.#status === CommandQueueExecuteStatus.executing) {
            this.#status = CommandQueueExecuteStatus.done;
            this.#result = commandResult;
            this.#resolveCallbacks.forEach(cb => cb(commandResult));
            this.#fulfilledCallbacks.forEach(cb => cb(commandResult));
        }
    }
    reject(err) {
        if (this.#status === CommandQueueExecuteStatus.executing) {
            this.#status = CommandQueueExecuteStatus.failed;
            this.#result = err;
            this.#fulfilledCallbacks.forEach(cb => cb(err));
            this.#rejectCallbacks.forEach(cb => cb(err));
        }
    }
    constructor(sender, command) {
        if (typeof sender?.runCommand !== "function") {
            throw new TypeError("sender cannot runCommand()");
        }
        this.sender = sender;
        this.command = String(command);
    }
    #fulfilledCallbacks = [];
    #resolveCallbacks = [];
    #rejectCallbacks = [];
    onresolve(callback) {
        this.#resolveCallbacks.push(callback);
    }
    onreject(callback) {
        this.#rejectCallbacks.push(callback);
    }
    onfulfilled(callback) {
        this.#fulfilledCallbacks.push(callback);
    }
}