yoni-mcscripts-lib/src/yoni/command/CommandExecutor.ts

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 { MinecraftSystem as system } from "../basis.js";
import { CommandQueue } from "./CommandQueue.js";
import { CommandPriority } from "./CommandPriority.js";
import { CommandList } from "./CommandList.js";

export class CommandExecutor {
    static #logger: import("../util/Logger").Logger;
    static log(...data: any[]){
        if (CommandExecutor.#logger)
            CommandExecutor.#logger.trace(...data);
        else
        system.run(async function initLogger(){
            const { Logger } = await import("../util/Logger");
            CommandExecutor.#logger = new Logger("CommandExecutor");
            CommandExecutor.log(...data);
        });
    }
    executingCommand: CommandQueue | null = null;
    commandList = new CommandList<CommandQueue>();
    constructor(autoStart?: boolean){
        if (arguments.length > 0)
            if (autoStart)
                this.start();
    }
    start(){
        if (this.#scheduleId !== null)
            throw new Error("executor already started");
        this.#scheduleId = system.runInterval(this.#run.bind(this));
    }
    #scheduleId: number | null = null;
    stop(){
        if (this.#scheduleId !== null){
            system.clearRun(this.#scheduleId);
            this.#scheduleId = null;
        }
    }
    add(priv: CommandPriority, command: CommandQueue){
        this.commandList.add(priv, command);
    }
    #run(){
        let executeQueueCount = 0;
        while (this.commandList.hasNext()){
            let commandQueue = this.commandList.next();
            
            executeQueueCount += 1;
            
            let commandResult;
            const { sender, command } = commandQueue;
            try {
                commandResult = sender.runCommand(command);
            } catch(err) { //鬼知道什么原因导致的错误，直接扔回去
                commandQueue.reject(err);
            }
            
            //执行完成
            //也可能没执行成功
            //不过反正再调用一次也不影响（目前）
            commandQueue.resolveResult(commandResult);
            executeQueueCount += 1;
        }
    }
}