# -*- coding:utf-8 -*- import mido import os import json import uuid import zipfile import shutil import zipfile def makeZip(sourceDir, outFilename, compression=8, exceptFile=None): """使用compression指定的算法打包目录为zip文件\n 默认算法为DEFLATED(8),可用算法如下：\n STORED = 0\n DEFLATED = 8\n BZIP2 = 12\n LZMA = 14\n """ zipf = zipfile.ZipFile(outFilename, 'w', compression) pre_len = len(os.path.dirname(sourceDir)) for parent, dirnames, filenames in os.walk(sourceDir): for filename in filenames: if filename == exceptFile: continue pathfile = os.path.join(parent, filename) arcname = pathfile[pre_len:].strip(os.path.sep) # 相对路径 zipf.write(pathfile, arcname) zipf.close() class midiConvert: def __init__(self, midiFile: str, outputPath: str): '''简单的midi转换类，将midi文件转换为我的世界结构或者包''' self.midiFile = midiFile '''midi文件路径''' self.midi = mido.MidiFile(self.midiFile) '''MidiFile对象''' self.outputPath = 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''' def __Inst2SoundID(self,instrumentID, default='note.harp'): '''返回midi的乐器ID对应的我的世界乐器名 :param instrumentID: midi的乐器ID :param default: 如果instrumentID不在范围内，返回的默认我的世界乐器名称 :return: 我的世界乐器名 str''' if instrumentID == 105: return 'note.banjo' if instrumentID in range(32, 40): return 'note.bass' if instrumentID in range(115, 119): return 'note.basedrum' if instrumentID == 9 or instrumentID == 14: return 'note.bell' if instrumentID == 80 or instrumentID == 81: return 'note.bit' if instrumentID == 112: return 'note.cow_bell' if instrumentID == -1: return 'note.didgeridoo' # 这是什么？我看不懂，但我大受震撼 if instrumentID in range(72, 80): return 'note.flute' if instrumentID in range(24, 32): return 'note.guitar' if instrumentID == -2: return 'note.hat' if instrumentID == 14: return 'note.chime' if instrumentID == 8 or instrumentID == 11: return 'iron_xylophone' if instrumentID == 2: return 'note.pling' if instrumentID == 114: return 'note.snare' if instrumentID == 13: return 'note.xylophone' return default def _toCmdList_m1(self,scoreboardname : str = 'mscplay',volume:float = 1.0, speed:float = 1.0) -> list: '''使用Dislink Sforza的转换算法，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: 我的世界命令列表''' tracks = [] if volume > 1: volume = 1 if volume <= 0: volume = 0.001 for i, track in enumerate(self.midi.tracks): ticks=0 commands=0 instrumentID=0 singleTrack = [] for msg in track: if msg.is_meta: if msg.type == 'set_tempo': tempo=msg.tempo if msg.type == 'program_change': instrumentID=msg.program else: ticks+=msg.time if msg.type == 'note_on' and msg.velocity != 0: singleTrack.append('execute @a[scores={'+scoreboardname+'='+str(round((ticks*tempo)/((self.midi.ticks_per_beat*float(speed))*50000)))+'}'+f'] ~~~ playsound {self.__Inst2SoundID(instrumentID)} @s ~~{1/volume-1}~ {msg.velocity*(0.7 if msg.channel == 0 else 0.9)} {2**((msg.note-66)/12)}') commands+=1 tracks.append(singleTrack) return tracks def tomcpack(self,method:int = 1,scoreboardname : str = 'mscplay',volume:float = 1.0, speed:float = 1.0) -> bool: '''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 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)''' if method == 1: cmdlist = self._toCmdList_m1(scoreboardname,volume,speed) else: 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，若其不存在则创建 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") 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') 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').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.write('scoreboard players add @a[scores={'+scoreboardname+'=1..}] '+scoreboardname+' 1\n') indexfile.close() makeZip(f'{self.outputPath}/temp/',self.outputPath+f'/{self.midFileName}.mcpack') shutil.rmtree(f'{self.outputPath}/temp/')