import asyncio
import discord
from discord.ext import commands
if not discord.opus.is_loaded():
# the 'opus' library here is opus.dll on windows
# or libopus.so on linux in the current directory
# you should replace this with the location the
# opus library is located in and with the proper filename.
# note that on windows this DLL is automatically provided for you
discord.opus.load_opus('opus')
class VoiceEntry:
def __init__(self, message, player):
self.requester = message.author
self.channel = message.channel
self.player = player
def __str__(self):
fmt = '*{0.title}* uploaded by {0.uploader} and requested by {1.display_name}'
duration = self.player.duration
if duration:
fmt = fmt + ' [length: {0[0]}m {0[1]}s]'.format(divmod(duration, 60))
return fmt.format(self.player, self.requester)
class VoiceState:
def __init__(self, bot):
self.current = None
self.voice = None
self.bot = bot
self.play_next_song = asyncio.Event()
self.songs = asyncio.Queue()
self.skip_votes = set() # a set of user_ids that voted
self.audio_player = self.bot.loop.create_task(self.audio_player_task())
def is_playing(self):
if self.voice is None or self.current is None:
return False
player = self.current.player
return not player.is_done()
@property
def player(self):
return self.current.player
def skip(self):
self.skip_votes.clear()
if self.is_playing():
self.player.stop()
def toggle_next(self):
self.bot.loop.call_soon_threadsafe(self.play_next_song.set)
async def audio_player_task(self):
while True:
self.play_next_song.clear()
self.current = await self.songs.get()
await self.bot.send_message(self.current.channel, 'Now playing ' + str(self.current))
self.current.player.start()
await self.play_next_song.wait()
class Music:
"""Voice related commands.
Works in multiple servers at once.
"""
def __init__(self, bot):
self.bot = bot
self.voice_states = {}
def get_voice_state(self, server):
state = self.voice_states.get(server.id)
if state is None:
state = VoiceState(self.bot)
self.voice_states[server.id] = state
return state
async def create_voice_client(self, channel):
voice = await self.bot.join_voice_channel(channel)
state = self.get_voice_state(channel.server)
state.voice = voice
def __unload(self):
for state in self.voice_states.values():
try:
state.audio_player.cancel()
if state.voice:
self.bot.loop.create_task(state.voice.disconnect())
except:
pass
@commands.command(pass_context=True, no_pm=True)
async def join(self, ctx, *, channel : discord.Channel):
"""Joins a voice channel."""
try:
await self.create_voice_client(channel)
except discord.ClientException:
await self.bot.say('Already in a voice channel...')
except discord.InvalidArgument:
await self.bot.say('This is not a voice channel...')
else:
await self.bot.say('Ready to play audio in ' + channel.name)
@commands.command(pass_context=True, no_pm=True)
async def summon(self, ctx):
"""Summons the bot to join your voice channel."""
summoned_channel = ctx.message.author.voice_channel
if summoned_channel is None:
await self.bot.say('You are not in a voice channel.')
return False
state = self.get_voice_state(ctx.message.server)
if state.voice is None:
state.voice = await self.bot.join_voice_channel(summoned_channel)
else:
await state.voice.move_to(summoned_channel)
return True
@commands.command(pass_context=True, no_pm=True)
async def play(self, ctx, *, song : str):
"""Plays a song.
If there is a song currently in the queue, then it is
queued until the next song is done playing.
This command automatically searches as well from YouTube.
The list of supported sites can be found here:
https://rg3.github.io/youtube-dl/supportedsites.html
"""
state = self.get_voice_state(ctx.message.server)
opts = {
'default_search': 'auto',
'quiet': True,
}
if state.voice is None:
success = await ctx.invoke(self.summon)
if not success:
return
try:
player = await state.voice.create_ytdl_player(song, ytdl_options=opts, after=state.toggle_next)
except Exception as e:
fmt = 'An error occurred while processing this request: ```py\n{}: {}\n```'
await self.bot.send_message(ctx.message.channel, fmt.format(type(e).__name__, e))
else:
player.volume = 0.6
entry = VoiceEntry(ctx.message, player)
await self.bot.say('Enqueued ' + str(entry))
await state.songs.put(entry)
@commands.command(pass_context=True, no_pm=True)
async def volume(self, ctx, value : int):
"""Sets the volume of the currently playing song."""
state = self.get_voice_state(ctx.message.server)
if state.is_playing():
player = state.player
player.volume = value / 100
await self.bot.say('Set the volume to {:.0%}'.format(player.volume))
@commands.command(pass_context=True, no_pm=True)
async def pause(self, ctx):
"""Pauses the currently played song."""
state = self.get_voice_state(ctx.message.server)
if state.is_playing():
player = state.player
player.pause()
@commands.command(pass_context=True, no_pm=True)
async def resume(self, ctx):
"""Resumes the currently played song."""
state = self.get_voice_state(ctx.message.server)
if state.is_playing():
player = state.player
player.resume()
@commands.command(pass_context=True, no_pm=True)
async def stop(self, ctx):
"""Stops playing audio and leaves the voice channel.
This also clears the queue.
"""
server = ctx.message.server
state = self.get_voice_state(server)
if state.is_playing():
player = state.player
player.stop()
try:
state.audio_player.cancel()
del self.voice_states[server.id]
await state.voice.disconnect()
except:
pass
@commands.command(pass_context=True, no_pm=True)
async def skip(self, ctx):
"""Vote to skip a song. The song requester can automatically skip.
3 skip votes are needed for the song to be skipped.
"""
state = self.get_voice_state(ctx.message.server)
if not state.is_playing():
await self.bot.say('Not playing any music right now...')
return
voter = ctx.message.author
if voter == state.current.requester:
await self.bot.say('Requester requested skipping song...')
state.skip()
elif voter.id not in state.skip_votes:
state.skip_votes.add(voter.id)
total_votes = len(state.skip_votes)
if total_votes >= 3:
await self.bot.say('Skip vote passed, skipping song...')
state.skip()
else:
await self.bot.say('Skip vote added, currently at [{}/3]'.format(total_votes))
else:
await self.bot.say('You have already voted to skip this song.')
@commands.command(pass_context=True, no_pm=True)
async def playing(self, ctx):
"""Shows info about the currently played song."""
state = self.get_voice_state(ctx.message.server)
if state.current is None:
await self.bot.say('Not playing anything.')
else:
skip_count = len(state.skip_votes)
await self.bot.say('Now playing {} [skips: {}/3]'.format(state.current, skip_count))
bot = commands.Bot(command_prefix=commands.when_mentioned_or('$'), description='A playlist example for discord.py')
bot.add_cog(Music(bot))
@bot.event
async def on_ready():
print('Logged in as:\n{0} (ID: {0.id})'.format(bot.user))
bot.run('token')