我正在尝试添加反馈（上推+下推）以嵌入EmbedBuilder消息中。如果用户竖起大拇指将角色“好”应用到他，如果用户竖起大拇指将角色“坏”应用到他，则如果删除了他的反应类型（thump..up / dawn）也会删除他的角色（win /输）。
message_txt_Embed是将要发送的嵌入式消息。
Private Async Function onMsg(message As SocketMessage) As Task
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If message.Source = MessageSource.Bot Then
'ignore bot repeat message message
Else
If message.Content = message_txt_Embed.text Then
Dim msg As String = message.Content
Dim embed As New EmbedBuilder With {
.Title = msg,
.Description = "No Description",
.Color = New Discord.Color(255, 0, 0)
}
Await message.Channel.SendMessageAsync("", False, embed)
'''''' what i try to add reaction for user's who add reaction
Dim guild As SocketGuild = (CType(message.Channel, SocketGuildChannel)).Guild
Dim emote As IEmote = guild.Emotes.First(Function(e) e.Name = ":thumbsup:")
Await guild.Users.AddReactionAsync(emote)
''''''
End If
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End If
当我将message_txt_Embed.text例如更改为“ test”，然后运行bot时，它是如何工作的。如果我键入“ test”（作为message_txt_Embed.text），则创建嵌入的味精。
我的观点是：添加反应时（thump..up / dawn）如何为用户应用角色，如果删除反应，该如何删除该角色。
答案 0 :(得分：0)
首先，我想为您解决一些示例代码问题。查看下面的评论
'This function is only called when a message is recieved by the client.
'It is not going to be called when a user adds a reaction to a message.
'As such, no logic should be included in here in relation to reactions.
Private Async Function onMsg(message As SocketMessage) As Task
If message.Source = MessageSource.Bot Then
'Instead of having an empty bode in your condition, you could use:
'If Not message.Source = MessageSource.Bot Then
' execute your logic
'End If
'The code above would remove the need for includeing an ELSE section
'and no longer require the IF section to be empty
Else
If message.Content = message_txt_Embed.text Then
Dim msg As String = message.Content
Dim embed As New EmbedBuilder With {
.Title = msg,
.Description = "No Description",
.Color = New Discord.Color(255, 0, 0)
}
Await message.Channel.SendMessageAsync("", False, embed)
Dim guild As SocketGuild = (CType(message.Channel, SocketGuildChannel)).Guild
'If you are trying to get the standard thumbsup emoji this is not going to work
'SocketGuild#Emotes is a collection of custom emotes that are available in the guild.
'If this thumbsup is in fact a custom emote you'd access the name withoug the ':'
Dim emote As IEmote = guild.Emotes.First(Function(e) e.Name = ":thumbsup:")
Await guild.Users.AddReactionAsync(emote) 'This is not a valid function.
End If
End If
解决方案：
-创建一个List（Of Ulong），该列表用于存储添加反应时应发挥作用的任何消息的ID。这样可以确保不会为响应通道中的任何消息而分配角色。
-使用ReactionAdded和ReactionRemoved事件来监听用户添加或删除的反应。
'Any time a message is created with the purpose of adding reaction roles
'that message id should be added to this list.
'This example does not include code for populating this list!
Private ReadOnly ReactionMessages As New List(Of ULong)
'Subscribe to the ReactionAdded and ReactionRemoved events (code not included)
已添加反应-添加角色
Private Async Function ReactionAdded(cache As Cacheable(Of IUserMessage, ULong), channel As ISocketMessageChannel, reaction As SocketReaction) As Task
If Not reaction.User.IsSpecified Then Return
'cache.id is the id of the message the user added the reaction to
'Check if the message the user is reacting to is a valid reaction message
'If valid, the message id should exist in our ReactionMessages collection
'Valid reaction messages are the only message that should assign or remove roles
If ReactionMessages.Contains(cache.Id) Then
Dim role As IRole = Nothing
'The unicode string ( and ) is used when comparing Discord emojis
If reaction.Emote.Name.Equals("") Then
'Retrieve the "good role" from the guild, using the role id
role = DirectCast(channel, SocketGuildChannel).Guild.GetRole(123456789)
ElseIf reaction.Emote.Name.Equals("") Then
'Retrieve the "bad role" from the guild, using the role id
role = DirectCast(channel, SocketGuildChannel).Guild.GetRole(987654321)
End If
'Only if the role was found within the guild should we attempt to add it to the user
If role IsNot Nothing Then Await DirectCast(reaction.User.Value, SocketGuildUser).AddRoleAsync(role)
End If
End Function
已删除反应-删除角色
Private Async Function ReactionRemoved(cache As Cacheable(Of IUserMessage, ULong), channel As ISocketMessageChannel, reaction As SocketReaction) As Task
If Not reaction.User.IsSpecified Then Return
'cache.id is the id of the message the user is reacting to
'Check if the message the user is reacting to is a valid reaction message
'If valid, the message id should exist in our ReactionMessages collection
'Valid reaction messages are the only message that should assign or remove roles
If ReactionMessages.Contains(cache.Id) Then
Dim role As IRole = Nothing
Dim user As SocketGuildUser = reaction.User.Value
'The unicode string ( and ) is used when comparing Discord emojis
If reaction.Emote.Name.Equals("") Then
'Retrieve the "good role" from the guild, using the role id
role = DirectCast(channel, SocketGuildChannel).Guild.GetRole(123456789)
ElseIf reaction.Emote.Name.Equals("") Then
'Retrieve the "bad role" from the guild, using the role id
role = DirectCast(channel, SocketGuildChannel).Guild.GetRole(987654321)
End If
'If the role was found within the guild and the user currently has the role assigned, remove the role from the user
If role IsNot Nothing AndAlso user.Roles.Any(Function(r) r.Id = role.Id) Then Await user.RemoveRoleAsync(role)
End If
End Function