如何确定用户是不是加入/切换/离开了语音频道?
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【中文标题】如何确定用户是不是加入/切换/离开了语音频道?【英文标题】:How to determine if a user joined/switched/left a voice channel?如何确定用户是否加入/切换/离开了语音频道? 【发布时间】:2021-06-05 16:11:12 【问题描述】:我正在使用 Discord.Net 并观察多个语音通道。如果这些语音通道具有由机器人设置的静音状态(而不是通过权限),则该语音通道中的用户也应该被静音。
如您在此处所见,仅从语音频道中删除发言权限不会立即影响人们
https://support.discord.com/hc/en-us/community/posts/360052856033-Directly-affect-people-in-channels-on-permission-changes
如果他们离开它,他们应该取消静音。
所以这个包含所有必需的信息
public sealed class ObservedVoiceChannel
public ulong VoiceChannelId get; set;
public bool IsMuted get; set;
// ... other information go here ...
而且我有一个服务来保存所有观察到的语音通道
public sealed class ObservedVoiceChannelsCache : Dictionary<ulong, ObservedVoiceChannel>
由于只有UserVoiceStateUpdated
事件,我想出了以下代码。
经过一些测试,我认为这段代码对我来说很好。虽然我知道使用“或”运算符可以提高 if 语句的可读性,但我会在解决最后一个问题后进行。
离开观察到的静音频道时,请查看评论
// 用户离开观察到静音的语音通道
用户不会被机器人取消静音。有时,当加入和离开的速度足够快时,处理程序会抛出异常
服务器响应错误 400:BadRequest
在 Discord.Net.Queue.RequestBucket.SendAsync(RestRequest 请求) 在 Discord.Net.Queue.RequestQueue.SendAsync(RestRequest 请求) 在 Discord.API.DiscordRestApiClient.SendInternalAsync(字符串方法, 字符串端点,RestRequest 请求)在 Discord.API.DiscordRestApiClient.SendJsonAsync(字符串方法,字符串 端点、对象负载、BucketId bucketId、ClientBucketType clientBucket,RequestOptions 选项)在 Discord.API.DiscordRestApiClient.ModifyGuildMemberAsync(UInt64 guildId, UInt64 userId, ModifyGuildMemberParams args, RequestOptions 选项)在 Discord.Rest.UserHelper.ModifyAsync(IGuildUser 用户, BaseDiscordClient 客户端,Action`1 func,RequestOptions 选项)在 ...OnUserVoiceStateUpdated(SocketUser socketUser, SocketVoiceState oldSocketVoiceState, SocketVoiceState newSocketVoiceState) 中 /.../UserVoiceStateUpdatedEventHandler.cs:第 52 行
这是我目前正在使用的代码
public sealed class UserVoiceStateUpdatedEventHandler
private readonly ObservedVoiceChannelsCache _observedVoiceChannelsCache;
public UserVoiceStateUpdatedEventHandler(ObservedVoiceChannelsCache observedVoiceChannelsCache)
_observedVoiceChannelsCache = observedVoiceChannelsCache;
public async Task OnUserVoiceStateUpdated(
SocketUser socketUser,
SocketVoiceState oldSocketVoiceState,
SocketVoiceState newSocketVoiceState)
if (socketUser is SocketGuildUser socketGuildUser)
bool userIsMuted = socketGuildUser.VoiceState?.IsMuted == true;
bool userIsNotOffline = socketGuildUser.Status != UserStatus.Offline;
// user left observed muted voice channel
if (oldSocketVoiceState.VoiceChannel != null &&
newSocketVoiceState.VoiceChannel == null &&
_observedVoiceChannelsCache.TryGetValue(oldSocketVoiceState.VoiceChannel.Id, out ObservedVoiceChannel observedLeftVoiceChannel) &&
observedLeftVoiceChannel.IsMuted &&
userIsMuted &&
userIsNotOffline
)
await SetUserMuteState(socketGuildUser, false);
// user joined observed muted voice channel
else if (oldSocketVoiceState.VoiceChannel == null &&
newSocketVoiceState.VoiceChannel != null &&
_observedVoiceChannelsCache.TryGetValue(newSocketVoiceState.VoiceChannel.Id, out ObservedVoiceChannel observedJoinedVoiceChannel) &&
observedJoinedVoiceChannel.IsMuted &&
!userIsMuted &&
userIsNotOffline)
await SetUserMuteState(socketGuildUser, true);
// user changed voice channels
else if (oldSocketVoiceState.VoiceChannel != null &&
newSocketVoiceState.VoiceChannel != null &&
userIsNotOffline)
bool oldVoiceChannelObserved = _observedVoiceChannelsCache.TryGetValue(
oldSocketVoiceState.VoiceChannel.Id, out ObservedVoiceChannel oldObservedVoiceChannel);
bool newVoiceChannelObserved = _observedVoiceChannelsCache.TryGetValue(
newSocketVoiceState.VoiceChannel.Id, out ObservedVoiceChannel newObservedVoiceChannel);
// user moved from observed muted voice channel to unobserved voice channel
if (oldVoiceChannelObserved &&
!newVoiceChannelObserved &&
oldObservedVoiceChannel.IsMuted &&
userIsMuted)
await SetUserMuteState(socketGuildUser, false);
// user moved from unobserved voice channel to observed muted voice channel
else if (!oldVoiceChannelObserved &&
newVoiceChannelObserved &&
newObservedVoiceChannel.IsMuted &&
!userIsMuted)
await SetUserMuteState(socketGuildUser, true);
// both voice channels are observed
else if (oldVoiceChannelObserved && newVoiceChannelObserved)
// user moved from muted to unmuted voice channel
if (oldObservedVoiceChannel.IsMuted &&
!newObservedVoiceChannel.IsMuted &&
userIsMuted)
await SetUserMuteState(socketGuildUser, false);
// user moved from unmuted to muted voice channel
else if (!oldObservedVoiceChannel.IsMuted &&
newObservedVoiceChannel.IsMuted &&
!userIsMuted)
await SetUserMuteState(socketGuildUser, true);
// user moved from muted to muted voice channel
else if (oldObservedVoiceChannel.IsMuted &&
newObservedVoiceChannel.IsMuted &&
!userIsMuted)
await SetUserMuteState(socketGuildUser, true);
private Task SetUserMuteState(SocketGuildUser socketGuildUser, bool muteUser)
=> socketGuildUser.ModifyAsync(guildUserProperties => guildUserProperties.Mute = muteUser);
我想知道如何将离开观察到的静音语音频道的用户取消静音。
我在这里发现了这一行
bool userIsMuted = socketGuildUser.VoiceState?.IsMuted == true;
离开语音通道后返回false,因为语音状态为空。所以似乎没有办法检查用户再次加入时是否会被静音。
【问题讨论】:
【参考方案1】:您确定某人是否加入、移动或离开语音频道的方法是分别查看SocketVoiceState oldSocketVoiceState
和SocketVoiceState newSocketVoiceState
参数的VoiceChannel 属性。 (oldSocketVoiceState.VoiceChannel
-> newSocketVoiceState.VoiceChannel
以下示例):
要将加入语音频道的某人静音,然后在他们断开连接后取消静音,您可以编写以下代码:
public async Task LogUserVoiceStateUpdatedAsync(SocketUser user, SocketVoiceState curVoiceState,
SocketVoiceState nextVoiceState)
if (user is not SocketGuildUser guildUser)
// They aren't a guild user, so we can't do anything to them.
return;
// Note, you should make a method for the two switches below as in
// reality you're only changing one true/false flag depending on
// the voice states.
// The user is leaving the voice channel.
if (curVoiceState.VoiceChannel != null && nextVoiceState.VoiceChannel == null)
// Unmute the user.
try
// Surround in try-catch in the event we lack permissions.
await guildUser.ModifyAsync(x => x.Mute = false);
catch (Exception e)
// Will ALWAYS throw 400 bad request. I don't exactly know why,
// but it has to do with the modification being done after the user leaves the voice channel.
// The warning can be safely be ignored.
// _logger.LogWarning(e, $"Failed to unmute user in guild guildUser.Guild.Id.");
else if (curVoiceState.VoiceChannel == null && nextVoiceState.VoiceChannel != null)
// Mute the user.
try
// Surround in try-catch in the event we lack permissions.
await guildUser.ModifyAsync(x => x.Mute = true);
catch (Exception e)
_logger.LogWarning(e, $"Failed to mute user in guild guildUser.Guild.Id.");
【讨论】:
取消静音离开用户总是抛出 400?如果是这样的话,那么我认为 OP 的代码应该没问题... @StageCodes 感谢您的回复,但如果用户切换语音通道怎么办?那么curVoiceState.VoiceChannel
不会为空。如果是这样的话,你的代码和我的有什么不同呢?
@Question3r 是的,你是对的。我们的代码不同之处在于您的引用了缓存,而我的没有。您的代码使问题变得比需要的更复杂,我的代码更易于阅读并安全地使用户静音。使用您的代码,如果您按原样静音用户并且没有权限在服务器中这样做,您将遇到未处理的异常,我相信程序会崩溃。
@StageCodes 是的,问题是当用户离开语音频道时,我无法再取消静音。我也试过你和我的代码,都在苦苦挣扎
在我的测试中,我从语音通道断开后立即取消静音,并在我重新加入时再次静音。以上是关于如何确定用户是不是加入/切换/离开了语音频道?的主要内容,如果未能解决你的问题,请参考以下文章