问题描述
所以我想我知道可能是什么问题,但我不确定如何解决它。我对 C# 编码很陌生。我已经在 node 中编写 discord 机器人一年多了,所以切换有点困难。我正在遵循 discord.NET 文档和指南中的说明。这是程序文件中的代码
using System;
using System.Threading.Tasks;
using discord;
using discord.WebSocket;
namespace galacticBot
{
class MainClass
{
public static void Main(string[] args) => new MainClass().MainAsync().GetAwaiter().GetResult();
private discordSocketClient client;
// Calls the class holding information
private Config config = new Config();
public async Task MainAsync()
{
client = new discordSocketClient();
// Logs to console
client.Log += Log;
// Uses the token to start the bot
await client.LoginAsync(TokenType.Bot,config.TestToken);
await client.StartAsync();
await Task.Delay(-1);
}
private Task Log(LogMessage msg)
{
Console.WriteLine(msg.ToString());
return Task.CompletedTask;
}
}
}
using System;
using System.Reflection;
using System.Threading.Tasks;
using discord;
using discord.Commands;
using discord.WebSocket;
namespace galacticBot
{
public class CommandHandler
{
private readonly discordSocketClient client;
private readonly CommandService commands;
private readonly Config config = new Config();
public CommandHandler(discordSocketClient _client,CommandService _commands)
{
client = _client;
commands = _commands;
}
public async Task InstallCommandsAsync()
{
client.MessageReceived += HandleCommandAsync;
await commands.AddModulesAsync(assembly: Assembly.GetEntryAssembly(),services: null);
}
private async Task HandleCommandAsync(SocketMessage MessageParam)
{
var message = MessageParam as SocketUserMessage;
if (message == null) return;
int ArgPos = 0;
// If there's no prefix or the message is from a bot then nothing happens
if (!(message.HasCharPrefix('!',ref ArgPos) || message.HasMentionPrefix(client.CurrentUser,ref ArgPos)) || message.Author.IsBot) return;
var context = new SocketCommandContext(client,message);
await commands.ExecuteAsync(
context: context,argPos: ArgPos,services: null
);
}
}
}
这是命令本身的代码
using System;
using System.Threading.Tasks;
using discord.Commands;
public class Hi : ModuleBase<SocketCommandContext>
{
[Command("hey")]
[Summary("Just says hi.")]
public async Task SayAsync()
{
Console.WriteLine("Command used");
await Context.Channel.SendMessageAsync("Just saying hi!");
}
}
命令中的 Console.WriteLine 用于测试目的,看看它是否正在尝试工作。我的想法是我不会在任何地方调用和使用 CommandHandler 类。我不知道这是否是问题所在,如果是,我不知道我需要做什么。
解决方法
经过更多的谷歌搜索并尝试了许多不同的想法,我终于找到了解决方案。 Anu6is 是正确的,您必须创建一个新实例并调用 install 方法。这导致在启动机器人时返回 null。首先,我为命令创建了一个变量,并使用 _client 变量将其设为静态,并为 CommandHandler 创建了一个变量
private static DiscordSocketClient _client;
private static CommandService _commands;
private CommandHandler commandHandler;
在 MainAsync 中,我必须创建一个新的 CommandService 实例,一个传递 _client 和 _commands 的命令处理程序的新实例,然后调用 InstallCommandsAsync 方法
_commands = new CommandService();
commandHandler = new CommandHandler(_client,_commands);
await commandHandler.InstallCommandsAsync();
更改后,构建成功返回,没有警告,并且测试命令有效。希望这能在某些时候对其他人有所帮助。