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discord.net - 命令权限 Discord.net

问题描述

用户类型：“test”，如果用户有角色“ vip”则显示消息“ you have permission”

其他“ you dont have permission”

我的代码：

  Public Async Function onMsg(message As SocketMessage) As Task

   If message.Source = MessageSource.Bot Then
   Else 
   If message.Content.Contains("test") Then

            Dim userName As SocketGuildUser
            Dim user = TryCast(message.Author, SocketGuildUser)
            Dim role = (TryCast(user, IGuildUser)).Guild.Roles.FirstOrDefault(Function(x) x.Name = "vip")

            If Not userName.Roles.Contains(role) Then

                Await message.Channel.SendMessageAsync("you have permission")
            Else
                Await message.Channel.SendMessageAsync("you dont have permission")
            End If


        End If

   End Function

标签： discord.net

解决方案

首先，为了创建一般命令，您应该考虑使用Discord.Net 中提供的命令服务，而不是 If/Else 检查您的消息接收事件处理程序。

您的代码中也存在错误。您声明了一个userName变量，但从未真正为它分配任何内容。然而你试图做userName.Roles

解决方案：

If message.Source = MessageSource.Bot Then
    Return
ElseIf message.Content.Contains("test") Then

    Dim user = TryCast(message.Author, SocketGuildUser)

    'If casting the user to a SocketGuildUser was not successful, then exit
    If user Is Nothing Then Return 'This can occur if a user message the bot via Direct Messages

    'Using "Any" returns true if a match is found, false otherwise
    If user.Roles.Any(Function(role) role.Name.Equals("VIP", StringComparison.OrdinalIgnoreCase)) Then
        Await message.Channel.SendMessageAsync("you have permission")
    Else
        Await message.Channel.SendMessageAsync("you dont have permission")
    End If
End If

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