Discord Bot ( using C# ) does not execute the command

问题

I wrote a Discord Bot. It's developed with C#. My command list is filled, the command value receives this list. But the command does not execute the code when calling it.

My prefix char is '!' followed by the command. My base class looks this:

public class Bot
    {
        string token = "#######################"; // my Token

        CommandService command; // The commands holder
        EventController eventController = new EventController(); // event class
        CommandController commandController = new CommandController(); // commands class

        public Bot()
        {
            var client = new DiscordClient(); // my client

            client = new DiscordClient(input =>
            {
                input.LogLevel = LogSeverity.Info;
                input.LogHandler = Log;
            });

            client.UsingCommands(input =>
            {
                input.PrefixChar = '!';              // the prefix char to call commands
                input.AllowMentionPrefix = true;
            });

            eventController.HandleEvents(client); // reference to events

            command = client.GetService<CommandService>();

            commandController.HandleCommands(command, client); // reference to commands

            client.ExecuteAndWait(async() =>
            {
                while (true)
                {
                    await client.Connect(token, TokenType.Bot);
                    break;
                }
            });
        }

        private void Log(object sender, LogMessageEventArgs e)
        {
            Console.WriteLine(e.Message);
        }

I devided the code into two classes, the eventController and the commandController. The commandController is the relevant one.

My command class looks this:

 private List<Tuple<string, string, string>> commandList = new List<Tuple<string, string, string>>(); // the List holding all commands

        public void HandleCommands(CommandService command, DiscordClient client)
        {
            FillCommandList(); // Fill the List with the commands

            foreach (Tuple<string, string, string> tuple in commandList)
            {
                command.CreateCommand('!' + tuple.Item1).Do(async (e) =>
                {
                    await e.Channel.SendMessage(tuple.Item2); // Create all commands from the List
                });
            }
        }

        private void Add(string commandName, string textToReturn, string commandDescription)
        {
            commandList.Add(new Tuple<string, string, string>(commandName, textToReturn, commandDescription)); // Method to lower the mass of code
        }

        private void FillCommandList()
        {
            Add("test0", "success0", "info0"); // commands for testing
            Add("test1", "success1", "info1");
            Add("test2", "success2", "info2");
            Add("test3", "success3", "info3");

            Add("help", UseHelp(), "List all Commands"); // call the help
        }

        private string UseHelp()
        {
            string commandItems = "";
            foreach (Tuple<string, string, string> tuple in commandList)
            {
                commandItems += "- !" + tuple.Item1 + " - " + tuple.Item3 + "\r\n"; // List all commands
            }
            return commandItems;
        }

So when I call a command like "test0" or "UseHelp()" the command receives the string content. All 5 commands are listed to the bot. But when i use a command in Discord the Bot does not reply.

It is connected and the "command" data is filled...

回答1:

First, take a look at this :

client.UsingCommands(input =>
            {
                input.PrefixChar = '!';              // the prefix char to call commands
                input.AllowMentionPrefix = true;
            });

and now , this : command.CreateCommand('!' + tuple.Item1)

In discord.net , when you make a PrefixChar already, the PrefixChar will always appear inside the argument of command.CreateCommand() at the front by default. So hence there is no need to place another '!' inside. If you do that, you have to call a command by using !!test0 . Simply, treat it as the system has automatically added the prefix in the argument on command.CreateCommand() automatically at the front.

To fix it : simply remove char argument '!' at the front in command.CreateCommand('!' + tuple.Item1). Test the bot by calling !test0 or something, it should work.

来源：https://stackoverflow.com/questions/41747618/discord-bot-using-c-sharp-does-not-execute-the-command

标签

bots

discord