Musicreater/msctPkgver/main.py

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# -*- coding: utf-8 -*-
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# 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 License.md
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"""
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· 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 · 库版)
A free open source library used for convert midi file into formats that is suitable for **Minecraft: Bedrock Edition**.
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版权所有 © 2023 · 开发者
Copyright © 2023 all the developers of Musicreater
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开源相关声明请见 ../License.md
Terms & Conditions: ../License.md
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"""
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import mido
import brotli
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import json
import uuid
import shutil
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from .utils import *
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from .exceptions import *
from typing import TypeVar, Union
T = TypeVar('T') # Declare type variable
VM = TypeVar("VM", mido.MidiFile, None) # void mido
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class SingleNote:
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def __init__(
self,
instrument: int,
pitch: int,
velocity,
startTime: int,
lastTime: int):
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"""用于存储单个音符的类
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:param instrument 乐器编号
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:param pitch 音符编号
:param velocity 力度/响度
:param startTime 开始之时(ms)
此处的时间是用从乐曲开始到当前的毫秒数
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:param lastTime 音符延续时间(ms)"""
self.instrument = instrument
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'''乐器编号'''
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self.note = pitch
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'''音符编号'''
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self.velocity = velocity
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'''力度/响度'''
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self.startTime = startTime
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'''开始之时 ms'''
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self.lastTime = lastTime
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'''音符持续时间 ms'''
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@property
def inst(self):
"""乐器编号"""
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return self.instrument
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@property
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def pitch(self):
"""音符编号"""
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return self.note
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def __str__(self):
return f"Note(inst = {self.inst}, pitch = {self.note}, velocity = {self.velocity}, " \
f"startTime = {self.startTime}, lastTime = {self.lastTime}, )"
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def __tuple__(self):
return (
self.inst,
self.note,
self.velocity,
self.startTime,
self.lastTime)
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def __dict__(self):
return {
"inst": self.inst,
"pitch": self.note,
"velocity": self.velocity,
"startTime": self.startTime,
"lastTime": self.lastTime,
}
class MethodList(list):
def __init__(self, in_=()):
super().__init__()
self._T = [_x for _x in in_]
def __getitem__(self, item) -> T:
return self._T[item]
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"""
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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
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###########
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
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"""
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class midiConvert:
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def __init__(self, debug: bool = False):
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"""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: bool = debug
self.midiFile: str = ""
self.midi: VM = None
self.outputPath: str = ""
self.midFileName: str = ""
self.exeHead = ""
self.methods = MethodList(
[
self._toCmdList_m1(),
self._toCmdList_m2(),
self._toCmdList_m3()
]
)
self.methods_byDelay = MethodList(
[
self._toCmdList_withDelay_m1,
self._toCmdList_withDelay_m2,
]
)
if self.debugMode:
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from .magicBeing import prt, ipt
self.prt = prt
self.ipt = ipt
def convert(
self,
midiFile: str,
outputPath: str,
oldExeFormat: bool = True):
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"""转换前需要先运行此函数来获取基本信息"""
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self.midiFile = midiFile
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"""midi文件路径"""
try:
self.midi = mido.MidiFile(self.midiFile)
"""MidiFile对象"""
except Exception as E:
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raise MidiDestroyedError(f"文件{self.midiFile}损坏:{E}")
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self.outputPath = os.path.abspath(outputPath)
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"""输出路径"""
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# 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]
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"""文件名,不含路径且不含后缀"""
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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。"""
@staticmethod
def __Inst2soundID_withX(instrumentID):
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"""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
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而存在一些打击乐器bd(basedrum)hatsnare没有音域则没有X那么我们返回7即可
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:param instrumentID: midi的乐器ID
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default: 如果instrumentID不在范围内返回的默认我的世界乐器名称
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:return: (str我的世界乐器名, int转换算法中的X)"""
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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),
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116: ("note.bd", 7), # 打击乐器无音域
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117: ("note.bass", 8),
118: ("note.bit", 6),
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119: ("note.bd", 7), # 打击乐器无音域
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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
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126: ("note.bd", 7), # 打击乐器无音域
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127: ("note.snare", 7), # 打击乐器无音域
}[instrumentID]
except BaseError:
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a = ("note.flute", 5)
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return a
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@staticmethod
def __bitInst2ID_withX(instrumentID):
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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 BaseError:
return "note.bd", 7
except BaseError:
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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。")
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if instrumentID == 55:
return "note.cow_bell", 5
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elif instrumentID in [41, 43, 45]:
return "note.hat", 7
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elif instrumentID in [36, 37, 39]:
return "note.snare", 7
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else:
return "note.bd", 7
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@staticmethod
def __score2time(score: int):
return str(int(int(score / 20) / 60)) + ":" + \
str(int(int(score / 20) % 60))
def __formProgressBar(
self,
maxscore: int,
scoreboard_name: str,
progressbar: tuple = (
r"%%N [ %%s/%^s %%% __________ %%t|%^t ]",
("§e=§r", "§7=§r"),
),
) -> list:
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pgs_style = progressbar[0]
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"""用于被替换的进度条原始样式"""
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"""
| 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|
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"""
perEach = maxscore / pgs_style.count('_')
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result = []
if r"%^s" in pgs_style:
pgs_style = pgs_style.replace(r"%^s", str(maxscore))
if r"%^t" in pgs_style:
pgs_style = pgs_style.replace(r"%^t", self.__score2time(maxscore))
def replaceBar(_i):
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try:
return pgs_style.replace(
'_',
progressbar[1][0],
_i +
1).replace(
'_',
progressbar[1][1])
except BaseError:
return pgs_style.replace('_', progressbar[1][0], _i + 1)
sbn_pc = scoreboard_name[:2]
if r"%%%" in pgs_style:
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result.append(
"scoreboard objectives add {}PercT dummy \"百分比计算\"".format(sbn_pc))
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result.append(
self.exeHead.format("@a[scores={" + scoreboard_name + "=1..}]")
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+ "scoreboard players set MaxScore {} {}".format(
scoreboard_name, maxscore
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)
)
result.append(
self.exeHead.format("@a[scores={" + scoreboard_name + "=1..}]")
+ "scoreboard players set n100 {} 100".format(scoreboard_name)
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)
result.append(
self.exeHead.format("@a[scores={" + scoreboard_name + "=1..}]")
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+ "scoreboard players operation @s {} = @s {}".format(
sbn_pc + "PercT", scoreboard_name
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)
)
result.append(
self.exeHead.format("@a[scores={" + scoreboard_name + "=1..}]")
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+ "scoreboard players operation @s {} *= n100 {}".format(
sbn_pc + "PercT", scoreboard_name
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)
)
result.append(
self.exeHead.format("@a[scores={" + scoreboard_name + "=1..}]")
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+ "scoreboard players operation @s {} /= MaxScore {}".format(
sbn_pc + "PercT", scoreboard_name
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)
)
if r"%%t" in pgs_style:
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result.append(
"scoreboard objectives add {}TMinT dummy \"时间计算:分\"".format(sbn_pc))
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result.append(
"scoreboard objectives add {}TSecT dummy \"时间计算:秒\"".format(sbn_pc))
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result.append(
self.exeHead.format("@a[scores={" + scoreboard_name + "=1..}]")
+ "scoreboard players set n20 {} 20".format(scoreboard_name)
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)
result.append(
self.exeHead.format("@a[scores={" + scoreboard_name + "=1..}]")
+ "scoreboard players set n60 {} 60".format(scoreboard_name)
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)
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result.append(
self.exeHead.format("@a[scores={" + scoreboard_name + "=1..}]")
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+ "scoreboard players operation @s {} = @s {}".format(
sbn_pc + "TMinT", scoreboard_name
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)
)
result.append(
self.exeHead.format("@a[scores={" + scoreboard_name + "=1..}]")
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+ "scoreboard players operation @s {} /= n20 {}".format(
sbn_pc + "TMinT", scoreboard_name
)
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)
result.append(
self.exeHead.format("@a[scores={" + scoreboard_name + "=1..}]")
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+ "scoreboard players operation @s {} /= n60 {}".format(
sbn_pc + "TMinT", scoreboard_name
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)
)
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result.append(
self.exeHead.format("@a[scores={" + scoreboard_name + "=1..}]")
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+ "scoreboard players operation @s {} = @s {}".format(
sbn_pc + "TSecT", scoreboard_name
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)
)
result.append(
self.exeHead.format("@a[scores={" + scoreboard_name + "=1..}]")
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+ "scoreboard players operation @s {} /= n20 {}".format(
sbn_pc + "TSecT", scoreboard_name
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)
)
result.append(
self.exeHead.format("@a[scores={" + scoreboard_name + "=1..}]")
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+ "scoreboard players operation @s {} %= n60 {}".format(
sbn_pc + "TSecT", scoreboard_name
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)
)
for i in range(pgs_style.count('_')):
npg_stl = (
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replaceBar(i).replace(r"%%N", self.midFileName)
if r"%%N" in pgs_style
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else replaceBar(i)
)
if r"%%s" in npg_stl:
npg_stl = npg_stl.replace(
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r"%%s",
'"},{"score":{"name":"*","objective":"'
+ scoreboard_name
2023-01-20 00:31:45 +08:00
+ '"}},{"text":"',
2022-10-07 16:49:47 +08:00
)
if r"%%%" in npg_stl:
npg_stl = npg_stl.replace(
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r"%%%",
'"},{"score":{"name":"*","objective":"'
+ sbn_pc
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+ 'PercT"}},{"text":"%',
)
if r"%%t" in npg_stl:
npg_stl = npg_stl.replace(
r"%%t", r'"},{"score":{"name":"*","objective":"{-}TMinT"}},{"text":":"},'
r'{"score":{"name":"*","objective":"{-}TSecT"}},{"text":"'.replace(
r"{-}", sbn_pc), )
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result.append(
self.exeHead.format(
"@a[scores={"
+ scoreboard_name
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+ f"={int(i * perEach)}..{math.ceil((i + 1) * perEach)}"
+ "}]"
)
+ r'titleraw @s actionbar {"rawtext":[{"text":"'
+ npg_stl
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+ r'"}]}'
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)
if r"%%%" in pgs_style:
result.append("scoreboard objectives remove {}PercT".format(sbn_pc))
if r"%%t" in pgs_style:
result.append("scoreboard objectives remove {}TMinT".format(sbn_pc))
result.append("scoreboard objectives remove {}TSecT".format(sbn_pc))
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return result
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def _toCmdList_m1(
self,
scoreboard_name: str = "mscplay",
MaxVolume: float = 1.0,
speed: float = 1.0) -> list:
"""
2022-06-19 01:07:07 +08:00
使用Dislink Sforza的转换思路将midi转换为我的世界命令列表
:param scoreboard_name: 我的世界的计分板名称
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: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)
"""
# :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
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tracks = []
MaxVolume = 1 if MaxVolume > 1 else (
0.001 if MaxVolume <= 0 else MaxVolume)
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commands = 0
maxscore = 0
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# 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
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for i, track in enumerate(self.midi.tracks):
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ticks = 0
instrumentID = 0
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singleTrack = []
for msg in track:
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ticks += msg.time
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if msg.is_meta:
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if msg.type == "set_tempo":
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tempo = msg.tempo
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else:
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if msg.type == "program_change":
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instrumentID = msg.program
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if msg.type == "note_on" and msg.velocity != 0:
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try:
nowscore = round(
(ticks * tempo)
/ ((self.midi.ticks_per_beat * float(speed)) * 50000)
)
except NameError:
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raise NotDefineTempoError("计算当前分数时出错 未定义参量 Tempo")
maxscore = max(maxscore, nowscore)
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if msg.channel == 9:
soundID, _X = self.__bitInst2ID_withX(instrumentID)
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else:
soundID, _X = self.__Inst2soundID_withX(
instrumentID)
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singleTrack.append(
"execute @a[scores={" +
str(scoreboard_name) +
"=" +
str(nowscore) +
"}" +
f"] ~ ~ ~ playsound {soundID} @s ^ ^ ^{1 / MaxVolume - 1} {msg.velocity / 128} "
f"{2 ** ((msg.note - 60 - _X) / 12)}")
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commands += 1
if len(singleTrack) != 0:
tracks.append(singleTrack)
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return [tracks, commands, maxscore]
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# 原本这个算法的转换效果应该和上面的算法相似的
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def _toCmdList_m2(
self,
scoreboard_name: str = "mscplay",
MaxVolume: float = 1.0,
speed: float = 1.0,
2022-10-07 16:49:47 +08:00
) -> list:
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"""
2022-10-07 19:25:28 +08:00
使用金羿的转换思路将midi转换为我的世界命令列表
:param scoreboard_name: 我的世界的计分板名称
2022-10-07 19:25:28 +08:00
: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
2022-08-08 22:08:08 +08:00
: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)
"""
2022-10-07 19:25:28 +08:00
MaxVolume = 1 if MaxVolume > 1 else (
0.001 if MaxVolume <= 0 else MaxVolume)
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# 一个midi中仅有16个通道 我们通过通道来识别而不是音轨
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channels = {
0: [],
1: [],
2: [],
3: [],
4: [],
5: [],
6: [],
7: [],
8: [],
9: [],
10: [],
11: [],
12: [],
13: [],
14: [],
15: [],
16: [],
}
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microseconds = 0
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# 我们来用通道统计音乐信息
for msg in self.midi:
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if msg.time != 0:
try:
microseconds += msg.time * tempo / self.midi.ticks_per_beat
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# print(microseconds)
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except NameError:
if self.debugMode:
raise NotDefineTempoError("计算当前分数时出错 未定义参量 Tempo")
else:
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microseconds += (
msg.time
* mido.midifiles.midifiles.DEFAULT_TEMPO
/ self.midi.ticks_per_beat
)
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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)")
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else:
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if self.debugMode:
try:
if msg.channel > 15:
raise ChannelOverFlowError(
f"当前消息 {msg} 的通道超限(≤15)")
except BaseError:
pass
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if msg.type == "program_change":
channels[msg.channel].append(
("PgmC", msg.program, microseconds))
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elif msg.type == "note_on" and msg.velocity != 0:
channels[msg.channel].append(
("NoteS", msg.note, msg.velocity, microseconds)
)
2022-10-07 19:25:28 +08:00
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elif (msg.type == "note_on" and msg.velocity == 0) or (
msg.type == "note_off"
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):
channels[msg.channel].append(
("NoteE", msg.note, microseconds))
2023-01-22 00:04:09 +08:00
2022-10-16 21:19:14 +08:00
"""整合后的音乐通道格式
2022-10-07 19:25:28 +08:00
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
2022-10-16 21:19:14 +08:00
("NoteS", 结束的音符ID, 距离演奏开始的毫秒)"""
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if self.debugMode:
self.prt(channels)
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tracks = []
cmdAmount = 0
maxScore = 0
# 此处 我们把通道视为音轨
for i in channels.keys():
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# 如果当前通道为空 则跳过
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if not channels[i]:
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continue
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if i == 9:
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SpecialBits = True
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else:
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SpecialBits = False
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nowTrack = []
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for msg in channels[i]:
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if msg[0] == "PgmC":
InstID = msg[1]
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elif msg[0] == "NoteS":
try:
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soundID, _X = (
self.__bitInst2ID_withX(InstID)
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if SpecialBits
else self.__Inst2soundID_withX(InstID)
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)
except UnboundLocalError as E:
if self.debugMode:
raise NotDefineProgramError(f"未定义乐器便提前演奏。\n{E}")
else:
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soundID, _X = (
self.__bitInst2ID_withX(-1)
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if SpecialBits
else self.__Inst2soundID_withX(-1)
2023-01-22 00:04:09 +08:00
)
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score_now = round(msg[-1] / float(speed) / 50)
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maxScore = max(maxScore, score_now)
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nowTrack.append(
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self.exeHead.format(
"@a[scores=({}={})]".format(
scoreboard_name,
score_now).replace(
'(',
r"{").replace(
")",
r"}")) +
f"playsound {soundID} @s ^ ^ ^{1 / MaxVolume - 1} {msg[2] / 128} "
f"{2 ** ((msg[1] - 60 - _X) / 12)}")
2022-10-07 19:25:28 +08:00
cmdAmount += 1
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2022-10-07 19:25:28 +08:00
tracks.append(nowTrack)
return [tracks, cmdAmount, maxScore]
2023-01-02 14:28:25 +08:00
# 简单的单音填充
2022-10-07 19:25:28 +08:00
def _toCmdList_m3(
self,
scoreboard_name: str = "mscplay",
MaxVolume: float = 1.0,
speed: float = 1.0,
2022-10-07 19:25:28 +08:00
) -> list:
"""
2023-01-02 14:28:25 +08:00
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 scoreboard_name: 我的世界的计分板名称
2022-10-07 19:25:28 +08:00
: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:
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MaxVolume = 1.0
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if MaxVolume <= 0:
MaxVolume = 0.001
2022-08-08 22:08:08 +08:00
# 一个midi中仅有16个通道 我们通过通道来识别而不是音轨
channels = [[], [], [], [], [], [], [],
[], [], [], [], [], [], [], [], []]
2022-10-07 16:49:47 +08:00
2022-10-07 19:25:28 +08:00
# 我们来用通道统计音乐信息
2022-08-08 22:08:08 +08:00
for i, track in enumerate(self.midi.tracks):
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microseconds = 0
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for msg in track:
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if msg.time != 0:
try:
microseconds += msg.time * tempo / self.midi.ticks_per_beat
except NameError:
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raise NotDefineTempoError("计算当前分数时出错 未定义参量 Tempo")
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2022-08-08 22:08:08 +08:00
if msg.is_meta:
if msg.type == "set_tempo":
tempo = msg.tempo
else:
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try:
# msg.channel
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channelMsg = True
except BaseError:
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channelMsg = False
if channelMsg:
if msg.channel > 15:
raise ChannelOverFlowError(
f"当前消息 {msg} 的通道超限(≤15)")
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2022-08-08 22:08:08 +08:00
if msg.type == "program_change":
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channels[msg.channel].append(
("PgmC", msg.program, microseconds)
2022-08-08 22:08:08 +08:00
)
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2022-10-16 21:19:14 +08:00
elif msg.type == "note_on" and msg.velocity != 0:
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channels[msg.channel].append(
("NoteS", msg.note, msg.velocity, microseconds)
)
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elif (msg.type == "note_on" and msg.velocity == 0) or (
msg.type == "note_off"
2022-10-07 19:25:28 +08:00
):
channels[msg.channel].append(
("NoteE", msg.note, microseconds))
2022-10-07 19:25:28 +08:00
2022-10-16 21:19:14 +08:00
"""整合后的音乐通道格式
2022-10-07 19:25:28 +08:00
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
2022-10-16 21:19:14 +08:00
("NoteS", 结束的音符ID, 距离演奏开始的毫秒)"""
2022-10-07 19:25:28 +08:00
note_channels = [[], [], [], [], [], [],
[], [], [], [], [], [], [], [], [], []]
2022-10-07 19:25:28 +08:00
# 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 = []
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MsgIndex = []
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for msg in channels[i]:
if msg[0] == "PgmC":
InstID = msg[1]
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elif msg[0] == "NoteS":
noteMsgs.append(msg[1:])
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MsgIndex.append(msg[1])
2022-10-16 21:19:14 +08:00
2022-10-07 19:25:28 +08:00
elif msg[0] == "NoteE":
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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],
2022-10-16 21:19:14 +08:00
)
2022-10-23 02:12:11 +08:00
)
noteMsgs.pop(MsgIndex.index(msg[1]))
MsgIndex.pop(MsgIndex.index(msg[1]))
2022-10-07 19:25:28 +08:00
2022-10-23 02:12:11 +08:00
tracks = []
2022-10-07 19:25:28 +08:00
cmdAmount = 0
maxScore = 0
CheckFirstChannel = False
2022-10-23 02:12:11 +08:00
# 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),]"""
2022-12-29 11:09:30 +08:00
2022-10-23 02:12:11 +08:00
result = []
totalCount = int(_note.lastTime / 500)
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for _i in range(totalCount):
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result.append(
(
_note.startTime + _i * 500,
_note.instrument,
_note.pitch,
_note.velocity,
MaxVolume * ((totalCount - _i) / totalCount),
2023-01-02 14:28:25 +08:00
)
)
2022-12-29 11:09:30 +08:00
2022-10-23 02:12:11 +08:00
return result
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# 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
2022-10-16 21:19:14 +08:00
if note_channels.index(track) == 0:
2022-10-07 19:25:28 +08:00
CheckFirstChannel = True
2023-01-02 14:28:25 +08:00
SpecialBits = False
elif note_channels.index(track) == 9:
SpecialBits = True
2022-10-07 19:25:28 +08:00
else:
CheckFirstChannel = False
2023-01-02 14:28:25 +08:00
SpecialBits = False
2022-10-07 19:25:28 +08:00
nowTrack = []
2022-10-16 21:19:14 +08:00
2022-10-07 19:25:28 +08:00
for note in track:
for every_note in _linearFun(note):
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# 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
2023-01-02 14:28:25 +08:00
if SpecialBits:
soundID, _X = self.__bitInst2ID_withX(InstID)
2023-01-02 14:28:25 +08:00
else:
soundID, _X = self.__Inst2soundID_withX(InstID)
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score_now = round(every_note[0] / speed / 50000)
2022-10-16 21:19:14 +08:00
maxScore = max(maxScore, score_now)
2022-10-07 19:25:28 +08:00
nowTrack.append(
"execute @a[scores={" +
str(scoreboard_name) +
"=" +
str(score_now) +
"}" +
f"] ~ ~ ~ playsound {soundID} @s ~ ~{1 / every_note[4] - 1} ~ "
f"{note.velocity * (0.7 if CheckFirstChannel else 0.9)} {2 ** ((note.pitch - 60 - _X) / 12)}")
2022-10-07 19:25:28 +08:00
cmdAmount += 1
2022-10-07 19:25:28 +08:00
tracks.append(nowTrack)
return [tracks, cmdAmount, maxScore]
2022-06-19 01:07:07 +08:00
def _toCmdList_withDelay_m1(
self,
MaxVolume: float = 1.0,
speed: float = 1.0,
player: str = "@a",
2022-06-19 01:07:07 +08:00
) -> list:
"""
2022-06-19 01:07:07 +08:00
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 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
2022-06-19 01:07:07 +08:00
:param player: 玩家选择器默认为`@a`
:return: 全部指令列表[ ( str指令, int距离上一个指令的延迟 ),...]
"""
# :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
2022-06-19 01:07:07 +08:00
tracks = {}
MaxVolume = 1 if MaxVolume > 1 else (
0.001 if MaxVolume <= 0 else MaxVolume)
for i, track in enumerate(self.midi.tracks):
instrumentID = 0
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ticks = 0
for msg in track:
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ticks += msg.time
if msg.is_meta:
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if msg.type == "set_tempo":
tempo = msg.tempo
else:
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if msg.type == "program_change":
instrumentID = msg.program
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if msg.type == "note_on" and msg.velocity != 0:
now_tick = round(
(ticks * tempo)
/ ((self.midi.ticks_per_beat * float(speed)) * 50000)
)
soundID, _X = self.__Inst2soundID_withX(instrumentID)
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try:
tracks[now_tick].append(
self.exeHead.format(player) +
f"playsound {soundID} @s ^ ^ ^{1 / MaxVolume - 1} {msg.velocity / 128} "
f"{2 ** ((msg.note - 60 - _X) / 12)}")
except BaseError:
tracks[now_tick] = [
self.exeHead.format(player) +
f"playsound {soundID} @s ^ ^ ^{1 / MaxVolume - 1} {msg.velocity / 128} "
f"{2 ** ((msg.note - 60 - _X) / 12)}"]
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results = []
all_ticks = list(tracks.keys())
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for i in range(len(all_ticks)):
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if i != 0:
for j in range(len(tracks[all_ticks[i]])):
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if j != 0:
results.append((tracks[all_ticks[i]][j], 0))
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else:
results.append(
(tracks[all_ticks[i]][j], all_ticks[i] - all_ticks[i - 1])
)
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else:
for j in range(len(tracks[all_ticks[i]])):
results.append((tracks[all_ticks[i]][j], all_ticks[i]))
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return [results, max(all_ticks)]
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def _toCmdList_withDelay_m2(
self,
MaxVolume: float = 1.0,
speed: float = 1.0,
player: str = "@a",
) -> list:
"""
使用金羿的转换思路将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 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: 全部指令列表[ ( str指令, int距离上一个指令的延迟 ),...]
"""
# :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
tracks = {}
MaxVolume = 1 if MaxVolume > 1 else (
0.001 if MaxVolume <= 0 else MaxVolume)
# 一个midi中仅有16个通道 我们通过通道来识别而不是音轨
channels = {
0: [],
1: [],
2: [],
3: [],
4: [],
5: [],
6: [],
7: [],
8: [],
9: [],
10: [],
11: [],
12: [],
13: [],
14: [],
15: [],
16: [],
}
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 BaseError:
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)"""
results = []
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
for msg in channels[i]:
if msg[0] == "PgmC":
InstID = msg[1]
elif msg[0] == "NoteS":
try:
soundID, _X = (
self.__bitInst2ID_withX(InstID)
if SpecialBits
else self.__Inst2soundID_withX(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.__bitInst2ID_withX(-1)
if SpecialBits
else self.__Inst2soundID_withX(-1)
)
score_now = round(msg[-1] / float(speed) / 50)
try:
tracks[score_now].append(
self.exeHead.format(player) +
f"playsound {soundID} @s ^ ^ ^{1 / MaxVolume - 1} {msg[2] / 128} "
f"{2 ** ((msg[1] - 60 - _X) / 12)}")
except BaseError:
tracks[score_now] = [
self.exeHead.format(player) +
f"playsound {soundID} @s ^ ^ ^{1 / MaxVolume - 1} {msg[2] / 128} "
f"{2 ** ((msg[1] - 60 - _X) / 12)}"]
all_ticks = list(tracks.keys())
if self.debugMode:
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self.prt(tracks)
for i in range(len(all_ticks)):
for j in range(len(tracks[all_ticks[i]])):
results.append((tracks[all_ticks[i]][j], (0 if j != 0 else (
all_ticks[i] - all_ticks[i - 1] if i != 0 else all_ticks[i]))))
return [results, max(all_ticks)]
def to_mcpack(
self,
method: int = 1,
volume: float = 1.0,
speed: float = 1.0,
progressbar=None,
scoreboard_name: str = "mscplay",
isAutoReset: bool = False,
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) -> 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
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: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 scoreboard_name: 我的世界的计分板名称
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: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)
"""
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# try:
cmdlist, maxlen, maxscore = self.methods[method -
1](scoreboard_name, volume, speed)
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# except:
# return (False, f"无法找到算法ID{method}对应的转换算法")
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# 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")
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# 写入manifest.json
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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}')
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else:
with open(
f"{self.outputPath}/temp/manifest.json", "r", encoding="utf-8"
) as manifest:
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data = json.loads(manifest.read())
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data["header"][
"description"
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] = f"the Player of the Music {self.midFileName}"
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data["header"]["name"] = self.midFileName
data["header"]["uuid"] = str(uuid.uuid4())
data["modules"][0]["description"] = "None"
data["modules"][0]["uuid"] = str(uuid.uuid4())
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manifest.close()
open(f"{self.outputPath}/temp/manifest.json", "w",
encoding="utf-8").write(json.dumps(data))
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# 将命令列表写入文件
index_file = open(
f"{self.outputPath}/temp/functions/index.mcfunction",
"w",
encoding="utf-8")
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for track in cmdlist:
index_file.write(
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"function mscplay/track" + str(cmdlist.index(track) + 1) + "\n"
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)
with open(
f"{self.outputPath}/temp/functions/mscplay/track{cmdlist.index(track) + 1}.mcfunction",
"w",
encoding="utf-8",
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) as f:
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f.write("\n".join(track))
index_file.writelines(
(
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"scoreboard players add @a[scores={"
+ scoreboard_name
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+ "=1..}] "
+ scoreboard_name
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+ " 1\n",
(
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"scoreboard players reset @a[scores={"
+ scoreboard_name
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+ "="
+ str(maxscore + 20)
+ "..}]"
+ f" {scoreboard_name}\n"
)
if isAutoReset
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else "",
f"function mscplay/progressShow\n" if progressbar else "",
)
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)
if progressbar:
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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,
scoreboard_name)))
else:
with open(
f"{self.outputPath}/temp/functions/mscplay/progressShow.mcfunction",
"w",
encoding="utf-8",
) as f:
f.writelines(
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"\n".join(
self.__formProgressBar(
maxscore, scoreboard_name, progressbar
)
)
)
index_file.close()
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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")
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shutil.rmtree(f"{self.outputPath}/temp/")
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return True, maxlen, maxscore
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def toBDXfile(
self,
method: int = 1,
volume: float = 1.0,
speed: float = 1.0,
progressbar: Union[bool, tuple] = False,
scoreboard_name: str = "mscplay",
isAutoReset: bool = False,
author: str = "Eilles",
max_height: int = 64,
):
"""
使用method指定的转换算法将midi转换为BDX结构文件
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: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 max_height: 生成结构最大高度
:param scoreboard_name: 我的世界的计分板名称
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: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)
"""
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# try:
cmdlist, total_count, maxScore = self.methods[method - 1](
scoreboard_name, volume, speed
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)
# except Exception as E:
# return (False, f"无法找到算法ID{method}对应的转换算法: {E}")
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if not os.path.exists(self.outputPath):
os.makedirs(self.outputPath)
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with open(
os.path.abspath(os.path.join(self.outputPath, f"{self.midFileName}.bdx")),
"w+",
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) as f:
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f.write("BD@")
_bytes = (
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b"BDX\x00"
+ author.encode("utf-8")
+ b" & Musicreater\x00\x01command_block\x00"
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)
commands = []
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for track in cmdlist:
commands += track
if isAutoReset:
commands.append(
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"scoreboard players reset @a[scores={"
+ scoreboard_name
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+ "="
+ str(maxScore + 20)
+ "}] "
+ scoreboard_name,
)
cmdBytes, size, finalPos = toBDX_bytes(
[(i, 0) for i in commands], max_height - 1)
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# 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 = toBDX_bytes(
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[
(i, 0)
for i in (
self.__formProgressBar(maxScore, scoreboard_name)
if progressbar
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else self.__formProgressBar(
maxScore, scoreboard_name, progressbar
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)
)
],
max_height - 1,
)
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_bytes += pgbBytes
_bytes += move(y, -pgbNowPos[1])
_bytes += move(z, -pgbNowPos[2])
_bytes += move(x, 2)
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size[0] += 2 + pgbSize[0]
size[1] = max(size[1], pgbSize[1])
size[2] = max(size[2], pgbSize[2])
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_bytes += cmdBytes
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with open(
os.path.abspath(os.path.join(self.outputPath, f"{self.midFileName}.bdx")),
"ab+",
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) as f:
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f.write(brotli.compress(_bytes + b"XE"))
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return True, total_count, maxScore, size, finalPos
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def toBDXfile_withDelay(
self,
method: int = 1,
volume: float = 1.0,
speed: float = 1.0,
progressbar=False,
player: str = "@a",
author: str = "Eilles",
max_height: int = 64,
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):
"""
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 max_height: 生成结构最大高度
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: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)
"""
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# try:
cmdlist, max_delay = self.methods_byDelay[method - 1](
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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}")
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if not os.path.exists(self.outputPath):
os.makedirs(self.outputPath)
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with open(
os.path.abspath(os.path.join(self.outputPath, f"{self.midFileName}.bdx")),
"w+",
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) as f:
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f.write("BD@")
_bytes = (
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b"BDX\x00"
+ author.encode("utf-8")
+ b" & Musicreater\x00\x01command_block\x00"
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)
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# 此处是对于仅有 True 的参数和自定义参数的判断
if progressbar:
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progressbar = (
r"%%N [ %%s/%^s %%% __________ %%t|%^t ]",
("§e=§r", "§7=§r"),
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)
cmdBytes, size, finalPos = toBDX_bytes(cmdlist, max_height - 1)
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if progressbar:
scb_name = self.midFileName[:5] + "Pgb"
_bytes += formCMD_blk(
r"scoreboard objectives add {} dummy {}播放用".replace(
r"{}", scb_name), 1, customName="初始化进度条", )
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_bytes += move(z, 2)
_bytes += formCMD_blk(
r"scoreboard players add {} {} 1".format(player, scb_name),
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1,
1,
customName="显示进度条并加分",
)
_bytes += move(y, 1)
pgbBytes, pgbSize, pgbNowPos = toBDX_bytes(
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[
(i, 0)
for i in self.__formProgressBar(max_delay, scb_name, progressbar)
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],
max_height - 1,
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)
_bytes += pgbBytes
_bytes += move(y, -1 - pgbNowPos[1])
_bytes += move(z, -2 - pgbNowPos[2])
_bytes += move(x, 2)
_bytes += formCMD_blk(
r"scoreboard players reset {} {}".format(player, scb_name),
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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])
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size[1] += 1
_bytes += cmdBytes
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with open(
os.path.abspath(os.path.join(self.outputPath, f"{self.midFileName}.bdx")),
"ab+",
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) as f:
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f.write(brotli.compress(_bytes + b"XE"))
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return True, len(cmdlist), max_delay, size, finalPos
def toDICT(
self,
) -> dict:
"""
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个通道 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 BaseError:
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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))
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"""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)"""
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return channels