Musicreater/main.py
2022-04-05 23:43:03 +08:00

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# -*- 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/')