# -*- coding: utf-8 -*- # 音·创 开发交流群 861684859 # Email EillesWan2006@163.com W-YI_DoctorYI@outlook.com EillesWan@outlook.com # 版权所有 金羿("Eilles Wan") & 诸葛亮与八卦阵("bgArray") & 鸣凤鸽子("MingFengPigeon") # 若需转载或借鉴 许可声明请查看仓库目录下的 Lisence.md """ 音·创 库版 (Musicreater Package Version) 是一款免费开源的针对《我的世界:基岩版》的midi音乐转换库 Musicreater pkgver (Package Version 音·创 库版) A free open source library used for convert midi file into formats that is suitable for **Minecraft: Bedrock Edition**. Copyright 2023 all the developers of Musicreater 开源相关声明请见 ../Lisence.md Terms & Conditions: ../Lisence.md """ import mido import brotli import json import uuid import shutil from .utils import * from .exceptions import * class SingleNote: def __init__( self, instrument: int, pitch: int, velocity, startTime: int, lastTime: int ): """用于存储单个音符的类 :param instrument 乐器编号 :param pitch 音符编号 :param velocity 力度/响度 :param startTime 开始之时(ms) 注:此处的时间是用从乐曲开始到当前的毫秒数 :param lastTime 音符延续时间(ms)""" self.instrument = instrument '''乐器编号''' self.note = pitch '''音符编号''' self.velocity = velocity '''力度/响度''' self.startTime = startTime '''开始之时 ms''' self.lastTime = lastTime '''音符持续时间 ms''' @property def inst(self): '''乐器编号''' return self.instrument @property def pitch(self): '''音符编号''' return self.note def __str__(self): return f"Note(inst = {self.inst}, pitch = {self.note}, velocity = {self.velocity}, startTime = {self.startTime}, lastTime = {self.lastTime}, )" def __tuple__(self): return (self.inst, self.note, self.velocity, self.startTime, self.lastTime) def __dict__(self): return { "inst": self.inst, "pitch": self.note, "velocity": self.velocity, "startTime": self.startTime, "lastTime": self.lastTime, } """ 学习笔记: tempo: microseconds per quarter note 毫秒每四分音符,换句话说就是一拍占多少毫秒 tick: midi帧 ticks_per_beat: 帧每拍,即一拍多少帧 那么: tick / ticks_per_beat => amount_of_beats 拍数(四分音符数) tempo * amount_of_beats => 毫秒数 所以: tempo * tick / ticks_per_beat => 毫秒数 ########### seconds per tick: (tempo / 1000000.0) / ticks_per_beat seconds: tick * tempo / 1000000.0 / ticks_per_beat microseconds: tick * tempo / 1000.0 / ticks_per_beat gameticks: tick * tempo / 1000000.0 / ticks_per_beat * 一秒多少游戏刻 """ class midiConvert: def __init__(self, debug: bool = False): """简单的midi转换类,将midi文件转换为我的世界结构或者包""" self.debugMode = debug self.methods = [ self._toCmdList_m1, self._toCmdList_m2, self._toCmdList_m3, ] self.methods_byDelay = [ self._toCmdList_withDelay_m1, ] if self.debugMode: from .magicBeing import prt,ipt self.prt = prt self.ipt = ipt def convert(self, midiFile: str, outputPath: str, oldExeFormat: bool = True): """转换前需要先运行此函数来获取基本信息""" self.midiFile = midiFile """midi文件路径""" try: self.midi = mido.MidiFile(self.midiFile) """MidiFile对象""" except Exception as E: raise MidiDestroyedError(f"文件{self.midiFile}损坏:{E}") self.outputPath = os.path.abspath(outputPath) """输出路径""" # 将self.midiFile的文件名,不含路径且不含后缀存入self.midiFileName self.midFileName = os.path.splitext(os.path.basename(self.midiFile))[0] """文件名,不含路径且不含后缀""" self.exeHead = ( "execute {} ~ ~ ~ " if oldExeFormat else "execute as {} at @s positioned ~ ~ ~ run " ) """execute指令的应用,两个版本提前决定。""" def __Inst2soundIDwithX(self, instrumentID): """返回midi的乐器ID对应的我的世界乐器名,对于音域转换算法,如下: 2**( ( msg.note - 60 - X ) / 12 ) 即为MC的音高,其中 X的取值随乐器不同而变化: 竖琴harp、电钢琴pling、班卓琴banjo、方波bit、颤音琴iron_xylophone 的时候为6 吉他的时候为7 贝斯bass、迪吉里杜管didgeridoo的时候为8 长笛flute、牛铃cou_bell的时候为5 钟琴bell、管钟chime、木琴xylophone的时候为4 而存在一些打击乐器bd(basedrum)、hat、snare,没有音域,则没有X,那么我们返回7即可 :param instrumentID: midi的乐器ID default: 如果instrumentID不在范围内,返回的默认我的世界乐器名称 :return: (str我的世界乐器名, int转换算法中的X)""" try: a = { 0: ("note.harp", 6), 1: ("note.harp", 6), 2: ("note.pling", 6), 3: ("note.harp", 6), 4: ("note.pling", 6), 5: ("note.pling", 6), 6: ("note.harp", 6), 7: ("note.harp", 6), 8: ("note.share", 7), # 打击乐器无音域 9: ("note.harp", 6), 10: ("note.didgeridoo", 8), 11: ("note.harp", 6), 12: ("note.xylophone", 4), 13: ("note.chime", 4), 14: ("note.harp", 6), 15: ("note.harp", 6), 16: ("note.bass", 8), 17: ("note.harp", 6), 18: ("note.harp", 6), 19: ("note.harp", 6), 20: ("note.harp", 6), 21: ("note.harp", 6), 22: ("note.harp", 6), 23: ("note.guitar", 7), 24: ("note.guitar", 7), 25: ("note.guitar", 7), 26: ("note.guitar", 7), 27: ("note.guitar", 7), 28: ("note.guitar", 7), 29: ("note.guitar", 7), 30: ("note.guitar", 7), 31: ("note.bass", 8), 32: ("note.bass", 8), 33: ("note.bass", 8), 34: ("note.bass", 8), 35: ("note.bass", 8), 36: ("note.bass", 8), 37: ("note.bass", 8), 38: ("note.bass", 8), 39: ("note.bass", 8), 40: ("note.harp", 6), 41: ("note.harp", 6), 42: ("note.harp", 6), 43: ("note.harp", 6), 44: ("note.iron_xylophone", 6), 45: ("note.guitar", 7), 46: ("note.harp", 6), 47: ("note.harp", 6), 48: ("note.guitar", 7), 49: ("note.guitar", 7), 50: ("note.bit", 6), 51: ("note.bit", 6), 52: ("note.harp", 6), 53: ("note.harp", 6), 54: ("note.bit", 6), 55: ("note.flute", 5), 56: ("note.flute", 5), 57: ("note.flute", 5), 58: ("note.flute", 5), 59: ("note.flute", 5), 60: ("note.flute", 5), 61: ("note.flute", 5), 62: ("note.flute", 5), 63: ("note.flute", 5), 64: ("note.bit", 6), 65: ("note.bit", 6), 66: ("note.bit", 6), 67: ("note.bit", 6), 68: ("note.flute", 5), 69: ("note.harp", 6), 70: ("note.harp", 6), 71: ("note.flute", 5), 72: ("note.flute", 5), 73: ("note.flute", 5), 74: ("note.harp", 6), 75: ("note.flute", 5), 76: ("note.harp", 6), 77: ("note.harp", 6), 78: ("note.harp", 6), 79: ("note.harp", 6), 80: ("note.bit", 6), 81: ("note.bit", 6), 82: ("note.bit", 6), 83: ("note.bit", 6), 84: ("note.bit", 6), 85: ("note.bit", 6), 86: ("note.bit", 6), 87: ("note.bit", 6), 88: ("note.bit", 6), 89: ("note.bit", 6), 90: ("note.bit", 6), 91: ("note.bit", 6), 92: ("note.bit", 6), 93: ("note.bit", 6), 94: ("note.bit", 6), 95: ("note.bit", 6), 96: ("note.bit", 6), 97: ("note.bit", 6), 98: ("note.bit", 6), 99: ("note.bit", 6), 100: ("note.bit", 6), 101: ("note.bit", 6), 102: ("note.bit", 6), 103: ("note.bit", 6), 104: ("note.harp", 6), 105: ("note.banjo", 6), 106: ("note.harp", 6), 107: ("note.harp", 6), 108: ("note.harp", 6), 109: ("note.harp", 6), 110: ("note.harp", 6), 111: ("note.guitar", 7), 112: ("note.harp", 6), 113: ("note.bell", 4), 114: ("note.harp", 6), 115: ("note.cow_bell", 5), 116: ("note.bd", 7), # 打击乐器无音域 117: ("note.bass", 8), 118: ("note.bit", 6), 119: ("note.bd", 7), # 打击乐器无音域 120: ("note.guitar", 7), 121: ("note.harp", 6), 122: ("note.harp", 6), 123: ("note.harp", 6), 124: ("note.harp", 6), 125: ("note.hat", 7), # 打击乐器无音域 126: ("note.bd", 7), # 打击乐器无音域 127: ("note.snare", 7), # 打击乐器无音域 }[instrumentID] except BaseException: a = ("note.flute", 5) return a def __bitInst2IDwithX(self, instrumentID): try: try: return { 34: ('note.bd', 7), 35: ('note.bd', 7), 36: ('note.hat', 7), 37: ('note.snare', 7), 38: ('note.snare', 7), 39: ('note.snare', 7), 40: ('note.hat', 7), 41: ('note.snare', 7), 42: ('note.hat', 7), 43: ('note.snare', 7), 44: ('note.snare', 7), 45: ('note.bell', 4), 46: ('note.snare', 7), 47: ('note.snare', 7), 48: ('note.bell', 4), 49: ('note.hat', 7), 50: ('note.bell', 4), 51: ('note.bell', 4), 52: ('note.bell', 4), 53: ('note.bell', 4), 54: ('note.bell', 4), 55: ('note.bell', 4), 56: ('note.snare', 7), 57: ('note.hat', 7), 58: ('note.chime', 4), 59: ('note.iron_xylophone', 6), 60: ('note.bd', 7), 61: ('note.bd', 7), 62: ('note.xylophone', 4), 63: ('note.xylophone', 4), 64: ('note.xylophone', 4), 65: ('note.hat', 7), 66: ('note.bell', 4), 67: ('note.bell', 4), 68: ('note.hat', 7), 69: ('note.hat', 7), 70: ('note.flute', 5), 71: ('note.flute', 5), 72: ('note.hat', 7), 73: ('note.hat', 7), 74: ('note.xylophone', 4), 75: ('note.hat', 7), 76: ('note.hat', 7), 77: ('note.xylophone', 4), 78: ('note.xylophone', 4), 79: ('note.bell', 4), 80: ('note.bell', 4), }[instrumentID] except: return ("note.bd", 7) except: print("WARN", "无法使用打击乐器列表库,可能是不支持当前环境,打击乐器使用Dislink算法代替。") if instrumentID == 55: return ("note.cow_bell", 5) elif instrumentID in [41, 43, 45]: return ("note.hat", 7) elif instrumentID in [36, 37, 39]: return ("note.snare", 7) else: return ("note.bd", 7) def __score2time(self, score: int): return str(int(int(score / 20) / 60)) + ":" + str(int(int(score / 20) % 60)) def __formProgressBar( self, maxscore: int, scoreboardname: str, progressbar: tuple = ( r"▶ %%N [ %%s/%^s %%% __________ %%t|%^t ]", ("§e=§r", "§7=§r"), ), ) -> list: pgsstyle = progressbar[0] """用于被替换的进度条原始样式""" """ | 标识符 | 指定的可变量 | |---------|----------------| | `%%N` | 乐曲名(即传入的文件名)| | `%%s` | 当前计分板值 | | `%^s` | 计分板最大值 | | `%%t` | 当前播放时间 | | `%^t` | 曲目总时长 | | `%%%` | 当前进度比率 | | `_` | 用以表示进度条占位| """ perEach = maxscore / pgsstyle.count('_') result = [] if r"%^s" in pgsstyle: pgsstyle = pgsstyle.replace(r"%^s", str(maxscore)) if r"%^t" in pgsstyle: pgsstyle = pgsstyle.replace(r"%^t", self.__score2time(maxscore)) def replaceBar(i): try: return pgsstyle.replace('_', progressbar[1][0], i + 1).replace( '_', progressbar[1][1] ) except: return pgsstyle.replace('_', progressbar[1][0], i + 1) sbnpc = scoreboardname[:2] if r"%%%" in pgsstyle: result.append( "scoreboard objectives add {}PercT dummy \"百分比计算\"".format(sbnpc) ) result.append( self.exeHead.format("@a[scores={" + scoreboardname + "=1..}]") + "scoreboard players set MaxScore {} {}".format( scoreboardname, maxscore ) ) result.append( self.exeHead.format("@a[scores={" + scoreboardname + "=1..}]") + "scoreboard players set MaxScore {} 100".format(scoreboardname) ) result.append( self.exeHead.format("@a[scores={" + scoreboardname + "=1..}]") + "scoreboard players operation @s {} = @s {}".format( sbnpc + "PercT", scoreboardname ) ) result.append( self.exeHead.format("@a[scores={" + scoreboardname + "=1..}]") + "scoreboard players operation @s {} *= n100 {}".format( sbnpc + "PercT", scoreboardname ) ) result.append( self.exeHead.format("@a[scores={" + scoreboardname + "=1..}]") + "scoreboard players operation @s {} /= MaxScore {}".format( sbnpc + "PercT", scoreboardname ) ) if r"%%t" in pgsstyle: result.append( "scoreboard objectives add {}TMinT dummy \"时间计算:分\"".format(sbnpc) ) result.append( "scoreboard objectives add {}TSecT dummy \"时间计算:秒\"".format(sbnpc) ) result.append( self.exeHead.format("@a[scores={" + scoreboardname + "=1..}]") + "scoreboard players set n20 {} 20".format(scoreboardname) ) result.append( self.exeHead.format("@a[scores={" + scoreboardname + "=1..}]") + "scoreboard players set n60 {} 60".format(scoreboardname) ) result.append( self.exeHead.format("@a[scores={" + scoreboardname + "=1..}]") + "scoreboard players operation @s {} = @s {}".format( sbnpc + "TMinT", scoreboardname ) ) result.append( self.exeHead.format("@a[scores={" + scoreboardname + "=1..}]") + "scoreboard players operation @s {} /= n20 {}".format( sbnpc + "TMinT", scoreboardname ) ) result.append( self.exeHead.format("@a[scores={" + scoreboardname + "=1..}]") + "scoreboard players operation @s {} /= n60 {}".format( sbnpc + "TMinT", scoreboardname ) ) result.append( self.exeHead.format("@a[scores={" + scoreboardname + "=1..}]") + "scoreboard players operation @s {} = @s {}".format( sbnpc + "TSecT", scoreboardname ) ) result.append( self.exeHead.format("@a[scores={" + scoreboardname + "=1..}]") + "scoreboard players operation @s {} /= n20 {}".format( sbnpc + "TSecT", scoreboardname ) ) result.append( self.exeHead.format("@a[scores={" + scoreboardname + "=1..}]") + "scoreboard players operation @s {} %= n60 {}".format( sbnpc + "TSecT", scoreboardname ) ) for i in range(pgsstyle.count('_')): npgstl = ( replaceBar(i).replace(r"%%N", self.midFileName) if r"%%N" in pgsstyle else replaceBar(i) ) if r"%%s" in npgstl: npgstl = npgstl.replace( r"%%s", '"},{"score":{"name":"*","objective":"' + scoreboardname + '"}},{"text":"', ) if r"%%%" in npgstl: npgstl = npgstl.replace( r"%%%", '"},{"score":{"name":"*","objective":"' + sbnpc + 'PercT"}},{"text":"%', ) if r"%%t" in npgstl: npgstl = npgstl.replace( r"%%t", r'"},{"score":{"name":"*","objective":"{-}TMinT"}},{"text":":"},{"score":{"name":"*","objective":"{-}TSecT"}},{"text":"'.replace( r"{-}", sbnpc ), ) result.append( self.exeHead.format( "@a[scores={" + scoreboardname + f"={int(i * perEach)}..{math.ceil((i + 1) * perEach)}" + "}]" ) + r'titleraw @s actionbar {"rawtext":[{"text":"' + npgstl + r'"}]}' ) if r"%%%" in pgsstyle: result.append("scoreboard objectives remove {}PercT".format(sbnpc)) if r"%%t" in pgsstyle: result.append("scoreboard objectives remove {}TMinT".format(sbnpc)) result.append("scoreboard objectives remove {}TSecT".format(sbnpc)) return result def _toCmdList_m1( self, scoreboardname: str = "mscplay", volume: float = 1.0, speed: float = 1.0 ) -> list: """ 使用Dislink Sforza的转换思路,将midi转换为我的世界命令列表 :param scoreboardname: 我的世界的计分板名称 :param volume: 音量,注意:这里的音量范围为(0,1],如果超出将被处理为正确值,其原理为在距离玩家 (1 / volume -1) 的地方播放音频 :param speed: 速度,注意:这里的速度指的是播放倍率,其原理为在播放音频的时候,每个音符的播放时间除以 speed :return: tuple(命令列表, 命令个数, 计分板最大值) """ tracks = [] if volume > 1: volume = 1 if volume <= 0: volume = 0.001 commands = 0 maxscore = 0 # 分轨的思路其实并不好,但这个算法就是这样 # 所以我建议用第二个方法 _toCmdList_m2 for i, track in enumerate(self.midi.tracks): ticks = 0 instrumentID = 0 singleTrack = [] for msg in track: ticks += msg.time if msg.is_meta: if msg.type == "set_tempo": tempo = msg.tempo else: if msg.type == "program_change": instrumentID = msg.program if msg.type == "note_on" and msg.velocity != 0: try: nowscore = round( (ticks * tempo) / ((self.midi.ticks_per_beat * float(speed)) * 50000) ) except NameError: raise NotDefineTempoError("计算当前分数时出错 未定义参量 Tempo") maxscore = max(maxscore, nowscore) if msg.channel == 9: soundID, _X = self.__bitInst2IDwithX(instrumentID) else: soundID, _X = self.__Inst2soundIDwithX(instrumentID) singleTrack.append( "execute @a[scores={" + str(scoreboardname) + "=" + str(nowscore) + "}" + f"] ~ ~ ~ playsound {soundID} @s ^ ^ ^{1 / volume - 1} {msg.velocity/128} {2 ** ((msg.note - 60 - _X) / 12)}" ) commands += 1 if len(singleTrack) != 0: tracks.append(singleTrack) return [tracks, commands, maxscore] # 原本这个算法的转换效果应该和上面的算法相似的 def _toCmdList_m2( self, scoreboardname: str = "mscplay", MaxVolume: float = 1.0, speed: float = 1.0, ) -> list: """ 使用金羿的转换思路,将midi转换为我的世界命令列表 :param scoreboardname: 我的世界的计分板名称 :param MaxVolume: 音量,注意:这里的音量范围为(0,1],如果超出将被处理为正确值,其原理为在距离玩家 (1 / volume -1) 的地方播放音频 :param speed: 速度,注意:这里的速度指的是播放倍率,其原理为在播放音频的时候,每个音符的播放时间除以 speed :return: tuple(命令列表, 命令个数, 计分板最大值) """ MaxVolume = 1 if MaxVolume > 1 else (0.001 if MaxVolume <= 0 else MaxVolume) # 一个midi中仅有16通道 我们通过通道来识别而不是音轨 channels = {} microseconds = 0 # 我们来用通道统计音乐信息 for msg in self.midi: if msg.time != 0: try: microseconds += msg.time * tempo / self.midi.ticks_per_beat # print(microseconds) except NameError: if self.debugMode: raise NotDefineTempoError("计算当前分数时出错 未定义参量 Tempo") else: microseconds += msg.time * mido.midifiles.midifiles.DEFAULT_TEMPO / self.midi.ticks_per_beat if msg.is_meta: if msg.type == "set_tempo": tempo = msg.tempo if self.debugMode: self.prt(f"TEMPO更改:{tempo}(毫秒每拍)") else: if self.debugMode: try: if msg.channel > 15: raise ChannelOverFlowError(f"当前消息 {msg} 的通道超限(≤15)") except: pass if msg.type == "program_change": channels[msg.channel].append(("PgmC", msg.program, microseconds)) elif msg.type == "note_on" and msg.velocity != 0: channels[msg.channel].append( ("NoteS", msg.note, msg.velocity, microseconds) ) elif (msg.type == "note_on" and msg.velocity == 0) or ( msg.type == "note_off" ): channels[msg.channel].append(("NoteE", msg.note, microseconds)) """整合后的音乐通道格式 每个通道包括若干消息元素其中逃不过这三种: 1 切换乐器消息 ("PgmC", 切换后的乐器ID: int, 距离演奏开始的毫秒) 2 音符开始消息 ("NoteS", 开始的音符ID, 力度(响度), 距离演奏开始的毫秒) 3 音符结束消息 ("NoteS", 结束的音符ID, 距离演奏开始的毫秒)""" if self.debugMode: self.prt(channels) tracks = [] cmdAmount = 0 maxScore = 0 # 此处 我们把通道视为音轨 for i in channels.keys(): # 如果当前通道为空 则跳过 if not channels[i]: continue if i == 9: SpecialBits = True else: SpecialBits = False nowTrack = [] for msg in channels[i]: if msg[0] == "PgmC": InstID = msg[1] elif msg[0] == "NoteS": try: soundID, _X = (self.__bitInst2IDwithX(InstID) if SpecialBits else self.__Inst2soundIDwithX(InstID)) except UnboundLocalError as E: if self.debugMode: raise NotDefineProgramError(f"未定义乐器便提前演奏。\n{E}") else: soundID, _X = (self.__bitInst2IDwithX(-1) if SpecialBits else self.__Inst2soundIDwithX(-1)) score_now = round(msg[-1] / float(speed) / 50) maxScore = max(maxScore, score_now) nowTrack.append( self.exeHead.format( "@a[scores=({}={})]".format(scoreboardname, score_now) .replace('(', r"{") .replace(")", r"}") ) + f"playsound {soundID} @s ^ ^ ^{1 / MaxVolume - 1} {msg[2]/128} {2 ** ((msg[1] - 60 - _X) / 12)}" ) cmdAmount += 1 tracks.append(nowTrack) return [tracks, cmdAmount, maxScore] # 简单的单音填充 def _toCmdList_m3( self, scoreboardname: str = "mscplay", MaxVolume: float = 1.0, speed: float = 1.0, ) -> list: """ 使用金羿的转换思路,将midi转换为我的世界命令列表,并使用完全填充算法优化音感 :param scoreboardname: 我的世界的计分板名称 :param MaxVolume: 音量,注意:这里的音量范围为(0,1],如果超出将被处理为正确值,其原理为在距离玩家 (1 / volume -1) 的地方播放音频 :param speed: 速度,注意:这里的速度指的是播放倍率,其原理为在播放音频的时候,每个音符的播放时间除以 speed :return: tuple(命令列表, 命令个数, 计分板最大值) """ if MaxVolume > 1: MaxVolume = 1.0 if MaxVolume <= 0: MaxVolume = 0.001 # 一个midi中仅有16通道 我们通过通道来识别而不是音轨 channels = [[], [], [], [], [], [], [], [], [], [], [], [], [], [], [], []] # 我们来用通道统计音乐信息 for i, track in enumerate(self.midi.tracks): microseconds = 0 for msg in track: if msg.time != 0: try: microseconds += msg.time * tempo / self.midi.ticks_per_beat except NameError: raise NotDefineTempoError("计算当前分数时出错 未定义参量 Tempo") if msg.is_meta: if msg.type == "set_tempo": tempo = msg.tempo else: try: msg.channel channelMsg = True except: channelMsg = False if channelMsg: if msg.channel > 15: raise ChannelOverFlowError(f"当前消息 {msg} 的通道超限(≤15)") if msg.type == "program_change": channels[msg.channel].append( ("PgmC", msg.program, microseconds) ) elif msg.type == "note_on" and msg.velocity != 0: channels[msg.channel].append( ("NoteS", msg.note, msg.velocity, microseconds) ) elif (msg.type == "note_on" and msg.velocity == 0) or ( msg.type == "note_off" ): channels[msg.channel].append(("NoteE", msg.note, microseconds)) """整合后的音乐通道格式 每个通道包括若干消息元素其中逃不过这三种: 1 切换乐器消息 ("PgmC", 切换后的乐器ID: int, 距离演奏开始的毫秒) 2 音符开始消息 ("NoteS", 开始的音符ID, 力度(响度), 距离演奏开始的毫秒) 3 音符结束消息 ("NoteS", 结束的音符ID, 距离演奏开始的毫秒)""" note_channels = [[], [], [], [], [], [], [], [], [], [], [], [], [], [], [], []] # 此处 我们把通道视为音轨 for i in range(len(channels)): # 如果当前通道为空 则跳过 noteMsgs = [] MsgIndex = [] for msg in channels[i]: if msg[0] == "PgmC": InstID = msg[1] elif msg[0] == "NoteS": noteMsgs.append(msg[1:]) MsgIndex.append(msg[1]) elif msg[0] == "NoteE": if msg[1] in MsgIndex: note_channels[i].append( SingleNote( InstID, msg[1], noteMsgs[MsgIndex.index(msg[1])][1], noteMsgs[MsgIndex.index(msg[1])][2], msg[-1] - noteMsgs[MsgIndex.index(msg[1])][2], ) ) noteMsgs.pop(MsgIndex.index(msg[1])) MsgIndex.pop(MsgIndex.index(msg[1])) tracks = [] cmdAmount = 0 maxScore = 0 CheckFirstChannel = False # 临时用的插值计算函数 def _linearFun(note: SingleNote) -> list: '''传入音符数据,返回以半秒为分割的插值列表 :param note: SingleNote 音符 :return list[tuple(int开始时间(毫秒), int乐器, int音符, int力度(内置), float音量(播放)),]''' result = [] totalCount = int(note.lastTime / 500) for i in range(totalCount): result.append( ( note.startTime + i * 500, note.instrument, note.pitch, note.velocity, MaxVolume * ((totalCount - i) / totalCount), ) ) return result # 此处 我们把通道视为音轨 for track in note_channels: # 如果当前通道为空 则跳过 if not track: continue if note_channels.index(track) == 0: CheckFirstChannel = True SpecialBits = False elif note_channels.index(track) == 9: SpecialBits = True else: CheckFirstChannel = False SpecialBits = False nowTrack = [] for note in track: for everynote in _linearFun(note): # 应该是计算的时候出了点小问题 # 我们应该用一个MC帧作为时间单位而不是半秒 if SpecialBits: soundID, _X = self.__bitInst2IDwithX(InstID) else: soundID, _X = self.__Inst2soundIDwithX(InstID) score_now = round(everynote[0] / speed / 50000) maxScore = max(maxScore, score_now) nowTrack.append( "execute @a[scores={" + str(scoreboardname) + "=" + str(score_now) + "}" + f"] ~ ~ ~ playsound {soundID} @s ~ ~{1 / everynote[4] - 1} ~ {note.velocity * (0.7 if CheckFirstChannel else 0.9)} {2 ** ((note.pitch - 60 - _X) / 12)}" ) cmdAmount += 1 tracks.append(nowTrack) return [tracks, cmdAmount, maxScore] def _toCmdList_withDelay_m1( self, volume: float = 1.0, speed: float = 1.0, player: str = "@a", # isMixedWithPrograssBar=False, ) -> list: """ 使用Dislink Sforza的转换思路,将midi转换为我的世界命令列表,并输出每个音符之后的延迟 :param volume: 音量,注意:这里的音量范围为(0,1],如果超出将被处理为正确值,其原理为在距离玩家 (1 / volume -1) 的地方播放音频 :param speed: 速度,注意:这里的速度指的是播放倍率,其原理为在播放音频的时候,每个音符的播放时间除以 speed :param player: 玩家选择器,默认为`@a` :param isMixedWithPrograssBar: 进度条,(当此参数为True时使用默认进度条,当此参数为其他值为真的表达式时识别为进度条自定义参数,若为其他值为假的表达式则不生成进度条) :return: 全部指令列表[ ( str指令, int距离上一个指令的延迟 ),...] """ tracks = {} if volume > 1: volume = 1 if volume <= 0: volume = 0.001 # 此处是对于仅有 True 的参数和自定义参数的判断 # if isMixedWithPrograssBar == True: # isMixedWithPrograssBar = ( # r"▶ %%N [ %%s/%^s %%% __________ %%t|%^t ]", # ("§e=§r", "§7=§r"), # ) for i, track in enumerate(self.midi.tracks): instrumentID = 0 ticks = 0 for msg in track: ticks += msg.time if msg.is_meta: if msg.type == "set_tempo": tempo = msg.tempo else: if msg.type == "program_change": instrumentID = msg.program if msg.type == "note_on" and msg.velocity != 0: nowtick = round( (ticks * tempo) / ((self.midi.ticks_per_beat * float(speed)) * 50000) ) soundID, _X = self.__Inst2soundIDwithX(instrumentID) try: tracks[nowtick].append( f"execute {player} ~ ~ ~ playsound {soundID} @s ~ ~{1 / volume - 1} ~ {msg.velocity * (0.7 if msg.channel == 0 else 0.9)} {2 ** ((msg.note - 60 - _X) / 12)}" ) except BaseException: tracks[nowtick] = [ f"execute {player} ~ ~ ~ playsound {soundID} @s ~ ~{1 / volume - 1} ~ {msg.velocity * (0.7 if msg.channel == 0 else 0.9)} {2 ** ((msg.note - 60 - _X) / 12)}", ] results = [] allticks = list(tracks.keys()) # if isMixedWithPrograssBar: # results.append("scoreboard objectives add {}") for i in range(len(allticks)): if i != 0: for j in range(len(tracks[allticks[i]])): if j != 0: results.append((tracks[allticks[i]][j], 0)) else: results.append( (tracks[allticks[i]][j], allticks[i] - allticks[i - 1]) ) else: for j in range(len(tracks[allticks[i]])): results.append((tracks[allticks[i]][j], allticks[i])) return results, max(allticks) def tomcpack( self, method: int = 1, volume: float = 1.0, speed: float = 1.0, progressbar=None, scoreboardname: str = "mscplay", isAutoReset: bool = False, ) -> tuple: """ 使用method指定的转换算法,将midi转换为我的世界mcpack格式的包 :param method: 转换算法 :param isAutoReset: 是否自动重置计分板 :param progressbar: 进度条,(当此参数为True时使用默认进度条,为其他的值为真的参数时识别为进度条自定义参数,为其他值为假的时候不生成进度条) :param scoreboardname: 我的世界的计分板名称 :param volume: 音量,注意:这里的音量范围为(0,1],其原理为在距离玩家 (1 / volume -1) 的地方播放音频 :param speed: 速度,注意:这里的速度指的是播放倍率,其原理为在播放音频的时候,每个音符的播放时间除以 speed :return 成功与否,成功返回(True,True),失败返回(False,str失败原因) """ # try: cmdlist, maxlen, maxscore = self.methods[method - 1]( scoreboardname, volume, speed ) # except: # return (False, f"无法找到算法ID{method}对应的转换算法") # 当文件f夹{self.outputPath}/temp/functions存在时清空其下所有项目,然后创建 if os.path.exists(f"{self.outputPath}/temp/functions/"): shutil.rmtree(f"{self.outputPath}/temp/functions/") os.makedirs(f"{self.outputPath}/temp/functions/mscplay") # 写入manifest.json if not os.path.exists(f"{self.outputPath}/temp/manifest.json"): with open( f"{self.outputPath}/temp/manifest.json", "w", encoding="utf-8" ) as f: f.write( '{\n "format_version": 1,\n "header": {\n "description": "' + self.midFileName + ' Pack : behavior pack",\n "version": [ 0, 0, 1 ],\n "name": "' + self.midFileName + 'Pack",\n "uuid": "' + str(uuid.uuid4()) + '"\n },\n "modules": [\n {\n "description": "' + f"the Player of the Music {self.midFileName}" + '",\n "type": "data",\n "version": [ 0, 0, 1 ],\n "uuid": "' + str(uuid.uuid4()) + '"\n }\n ]\n}' ) else: with open( f"{self.outputPath}/temp/manifest.json", "r", encoding="utf-8" ) as manifest: data = json.loads(manifest.read()) data["header"][ "description" ] = f"the Player of the Music {self.midFileName}" data["header"]["name"] = self.midFileName data["header"]["uuid"] = str(uuid.uuid4()) data["modules"][0]["description"] = "None" data["modules"][0]["uuid"] = str(uuid.uuid4()) manifest.close() open(f"{self.outputPath}/temp/manifest.json", "w", encoding="utf-8").write( json.dumps(data) ) # 将命令列表写入文件 indexfile = open( f"{self.outputPath}/temp/functions/index.mcfunction", "w", encoding="utf-8" ) for track in cmdlist: indexfile.write( "function mscplay/track" + str(cmdlist.index(track) + 1) + "\n" ) with open( f"{self.outputPath}/temp/functions/mscplay/track{cmdlist.index(track) + 1}.mcfunction", "w", encoding="utf-8", ) as f: f.write("\n".join(track)) indexfile.writelines( ( "scoreboard players add @a[scores={" + scoreboardname + "=1..}] " + scoreboardname + " 1\n", ( "scoreboard players reset @a[scores={" + scoreboardname + "=" + str(maxscore + 20) + "..}]" + f" {scoreboardname}\n" ) if isAutoReset else "", f"function mscplay/progressShow\n" if progressbar else "", ) ) if progressbar: if progressbar: with open( f"{self.outputPath}/temp/functions/mscplay/progressShow.mcfunction", "w", encoding="utf-8", ) as f: f.writelines( "\n".join(self.__formProgressBar(maxscore, scoreboardname)) ) else: with open( f"{self.outputPath}/temp/functions/mscplay/progressShow.mcfunction", "w", encoding="utf-8", ) as f: f.writelines( "\n".join( self.__formProgressBar( maxscore, scoreboardname, progressbar ) ) ) indexfile.close() if os.path.exists(f"{self.outputPath}/{self.midFileName}.mcpack"): os.remove(f"{self.outputPath}/{self.midFileName}.mcpack") makeZip( f"{self.outputPath}/temp/", f"{self.outputPath}/{self.midFileName}.mcpack" ) shutil.rmtree(f"{self.outputPath}/temp/") return (True, maxlen, maxscore) def toBDXfile( self, method: int = 1, volume: float = 1.0, speed: float = 1.0, progressbar=False, scoreboardname: str = "mscplay", isAutoReset: bool = False, author: str = "Eilles", maxheight: int = 64, ): """ 使用method指定的转换算法,将midi转换为BDX结构文件 :param method: 转换算法 :param author: 作者名称 :param progressbar: 进度条,(当此参数为True时使用默认进度条,为其他的值为真的参数时识别为进度条自定义参数,为其他值为假的时候不生成进度条) :param maxheight: 生成结构最大高度 :param scoreboardname: 我的世界的计分板名称 :param volume: 音量,注意:这里的音量范围为(0,1],如果超出将被处理为正确值,其原理为在距离玩家 (1 / volume -1) 的地方播放音频 :param speed: 速度,注意:这里的速度指的是播放倍率,其原理为在播放音频的时候,每个音符的播放时间除以 speed :param isAutoReset: 是否自动重置计分板 :return 成功与否,成功返回(True,未经过压缩的源,结构占用大小),失败返回(False,str失败原因) """ # try: cmdlist, totalcount, maxScore = self.methods[method - 1]( scoreboardname, volume, speed ) # except Exception as E: # return (False, f"无法找到算法ID{method}对应的转换算法: {E}") if not os.path.exists(self.outputPath): os.makedirs(self.outputPath) with open( os.path.abspath(os.path.join(self.outputPath, f"{self.midFileName}.bdx")), "w+", ) as f: f.write("BD@") _bytes = ( b"BDX\x00" + author.encode("utf-8") + b" & Musicreater\x00\x01command_block\x00" ) commands = [] for track in cmdlist: commands += track if isAutoReset: commands.append( "scoreboard players reset @a[scores={" + scoreboardname + "=" + str(maxScore + 20) + "}] " + scoreboardname, ) cmdBytes, size, finalPos = toBDXbytes([(i,0)for i in commands], maxheight - 1) # 此处是对于仅有 True 的参数和自定义参数的判断 if progressbar: pgbBytes, pgbSize, pgbNowPos = toBDXbytes( [ (i, 0) for i in ( self.__formProgressBar(maxScore, scoreboardname) if progressbar == True else self.__formProgressBar( maxScore, scoreboardname, progressbar ) ) ], maxheight - 1, ) _bytes += pgbBytes _bytes += move(y, -pgbNowPos[1]) _bytes += move(z, -pgbNowPos[2]) _bytes += move(x, 2) size[0] += 2 + pgbSize[0] size[1] = max(size[1], pgbSize[1]) size[2] = max(size[2], pgbSize[2]) _bytes += cmdBytes with open( os.path.abspath(os.path.join(self.outputPath, f"{self.midFileName}.bdx")), "ab+", ) as f: f.write(brotli.compress(_bytes + b"XE")) return (True, totalcount, maxScore, size, finalPos) def toBDXfile_withDelay( self, method: int = 1, volume: float = 1.0, speed: float = 1.0, progressbar=False, player: str = "@a", author: str = "Eilles", maxheight: int = 64, ): """ 使用method指定的转换算法,将midi转换为BDX结构文件 :param method: 转换算法 :param author: 作者名称 :param progressbar: 进度条,(当此参数为True时使用默认进度条,为其他的值为真的参数时识别为进度条自定义参数,为其他值为假的时候不生成进度条) :param maxheight: 生成结构最大高度 :param volume: 音量,注意:这里的音量范围为(0,1],如果超出将被处理为正确值,其原理为在距离玩家 (1 / volume -1) 的地方播放音频 :param speed: 速度,注意:这里的速度指的是播放倍率,其原理为在播放音频的时候,每个音符的播放时间除以 speed :param player: 玩家选择器,默认为`@a` :return 成功与否,成功返回(True,未经过压缩的源,结构占用大小),失败返回(False,str失败原因) """ # try: cmdlist, maxdelay = self.methods_byDelay[method - 1]( volume, speed, player, ) # except Exception as E: # return (False, f"无法找到算法ID{method}对应的转换算法\n{E}") if not os.path.exists(self.outputPath): os.makedirs(self.outputPath) with open( os.path.abspath(os.path.join(self.outputPath, f"{self.midFileName}.bdx")), "w+", ) as f: f.write("BD@") _bytes = ( b"BDX\x00" + author.encode("utf-8") + b" & Musicreater\x00\x01command_block\x00" ) # 此处是对于仅有 True 的参数和自定义参数的判断 if progressbar == True: progressbar = ( r"▶ %%N [ %%s/%^s %%% __________ %%t|%^t ]", ("§e=§r", "§7=§r"), ) cmdBytes, size, finalPos = toBDXbytes(cmdlist, maxheight - 1) if progressbar: scbname = self.midFileName[:5] + "Pgb" _bytes += formCMDblk( r"scoreboard objectives add {} dummy {}播放用".replace(r"{}", scbname), 1, customName="初始化进度条", ) _bytes += move(z, 2) _bytes += formCMDblk( r"scoreboard players add {} {} 1".format(player, scbname), 1, 1, customName="显示进度条并加分", ) _bytes += move(y, 1) pgbBytes, pgbSize, pgbNowPos = toBDXbytes( [ (i, 0) for i in self.__formProgressBar(maxdelay, scbname, progressbar) ], maxheight - 1, ) _bytes += pgbBytes _bytes += move(y, -1 - pgbNowPos[1]) _bytes += move(z, -2 - pgbNowPos[2]) _bytes += move(x, 2) _bytes += formCMDblk( r"scoreboard players reset {} {}".format(player, scbname), 1, customName="置零进度条", ) _bytes += move(y, 1) size[0] += 2 + pgbSize[0] size[1] = max(size[1], pgbSize[1]) size[2] = max(size[2], pgbSize[2]) size[1] += 1 _bytes += cmdBytes with open( os.path.abspath(os.path.join(self.outputPath, f"{self.midFileName}.bdx")), "ab+", ) as f: f.write(brotli.compress(_bytes + b"XE")) return (True, len(cmdlist), maxdelay, size, finalPos) def toDICT( self, ) -> list: """ 使用金羿的转换思路,将midi转换为字典 :return: dict() """ # 一个midi中仅有16通道 我们通过通道来识别而不是音轨 channels = {} microseconds = 0 # 我们来用通道统计音乐信息 for msg in self.midi: if msg.time != 0: try: microseconds += msg.time * tempo / self.midi.ticks_per_beat # print(microseconds) except: microseconds += msg.time * mido.midifiles.midifiles.DEFAULT_TEMPO / self.midi.ticks_per_beat if msg.is_meta: if msg.type == "set_tempo": tempo = msg.tempo else: if msg.type == "program_change": channels[msg.channel].append(("PgmC", msg.program, microseconds)) elif msg.type == "note_on" and msg.velocity != 0: channels[msg.channel].append( ("NoteS", msg.note, msg.velocity, microseconds) ) elif (msg.type == "note_on" and msg.velocity == 0) or ( msg.type == "note_off" ): channels[msg.channel].append(("NoteE", msg.note, microseconds)) """整合后的音乐通道格式 每个通道包括若干消息元素其中逃不过这三种: 1 切换乐器消息 ("PgmC", 切换后的乐器ID: int, 距离演奏开始的毫秒) 2 音符开始消息 ("NoteS", 开始的音符ID, 力度(响度), 距离演奏开始的毫秒) 3 音符结束消息 ("NoteS", 结束的音符ID, 距离演奏开始的毫秒)""" return channels