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PyTaiko/libs/tja.py
Anthony Samms b5625f7565 Update tja.py
2025-11-03 10:45:24 -05:00

942 lines
39 KiB
Python

import bisect
import hashlib
import math
import logging
import random
from collections import deque
from dataclasses import dataclass, field, fields
from functools import lru_cache
from pathlib import Path
from libs.global_data import Modifiers
from libs.utils import get_pixels_per_frame, strip_comments
@lru_cache(maxsize=64)
def get_ms_per_measure(bpm_val: float, time_sig: float):
"""Calculate the number of milliseconds per measure."""
#https://gist.github.com/KatieFrogs/e000f406bbc70a12f3c34a07303eec8b#measure
if bpm_val == 0:
return 0
return 60000 * (time_sig * 4) / bpm_val
@lru_cache(maxsize=64)
def get_pixels_per_ms(pixels_per_frame: float):
"""Calculate the number of pixels per millisecond."""
return pixels_per_frame / (1000 / 60)
@dataclass()
class Note:
"""A note in a TJA file.
Attributes:
type (int): The type (color) of the note.
hit_ms (float): The time at which the note should be hit.
load_ms (float): The time at which the note should be loaded.
pixels_per_frame_x (float): The number of pixels per frame in the x direction.
pixels_per_frame_y (float): The number of pixels per frame in the y direction.
display (bool): Whether the note should be displayed.
index (int): The index of the note.
bpm (float): The beats per minute of the song.
gogo_time (bool): Whether the note is a gogo time note.
moji (int): The text drawn below the note.
is_branch_start (bool): Whether the note is the start of a branch.
branch_params (str): The parameters (requirements) of the branch.
"""
type: int = field(init=False)
hit_ms: float = field(init=False)
load_ms: float = field(init=False)
pixels_per_frame_x: float = field(init=False)
pixels_per_frame_y: float = field(init=False)
display: bool = field(init=False)
index: int = field(init=False)
bpm: float = field(init=False)
gogo_time: bool = field(init=False)
moji: int = field(init=False)
is_branch_start: bool = field(init=False)
branch_params: str = field(init=False)
def __lt__(self, other):
return self.hit_ms < other.hit_ms
def __le__(self, other):
return self.hit_ms <= other.hit_ms
def __gt__(self, other):
return self.hit_ms > other.hit_ms
def __ge__(self, other):
return self.hit_ms >= other.hit_ms
def __eq__(self, other):
return self.hit_ms == other.hit_ms
def _get_hash_data(self) -> bytes:
hash_fields = ['type', 'hit_ms', 'load_ms']
field_values = []
for field_name in sorted(hash_fields):
value = getattr(self, field_name, None)
field_values.append((field_name, value))
field_values.append(('__class__', self.__class__.__name__))
hash_string = str(field_values)
return hash_string.encode('utf-8')
def get_hash(self, algorithm='sha256') -> str:
"""Generate hash of the note"""
hash_obj = hashlib.new(algorithm)
hash_obj.update(self._get_hash_data())
return hash_obj.hexdigest()
def __hash__(self) -> int:
"""Make instances hashable for use in sets/dicts"""
return int(self.get_hash('md5')[:8], 16) # Use first 8 chars of MD5 as int
def __repr__(self):
return str(self.__dict__)
@dataclass
class Drumroll(Note):
"""A drumroll note in a TJA file.
Attributes:
_source_note (Note): The source note.
color (int): The color of the drumroll. (0-255 where 255 is red)
"""
_source_note: Note
color: int = field(init=False)
def __repr__(self):
return str(self.__dict__)
def __eq__(self, other):
return self.hit_ms == other.hit_ms
def __post_init__(self):
for field_name in [f.name for f in fields(Note)]:
if hasattr(self._source_note, field_name):
setattr(self, field_name, getattr(self._source_note, field_name))
@dataclass
class Balloon(Note):
"""A balloon note in a TJA file.
Attributes:
_source_note (Note): The source note.
count (int): The number of hits it takes to pop.
popped (bool): Whether the balloon has been popped.
is_kusudama (bool): Whether the balloon is a kusudama.
"""
_source_note: Note
count: int = field(init=False)
popped: bool = False
is_kusudama: bool = False
def __repr__(self):
return str(self.__dict__)
def __eq__(self, other):
return self.hit_ms == other.hit_ms
def __post_init__(self):
for field_name in [f.name for f in fields(Note)]:
if hasattr(self._source_note, field_name):
setattr(self, field_name, getattr(self._source_note, field_name))
def _get_hash_data(self) -> bytes:
"""Override to include source note and balloon-specific data"""
hash_fields = ['type', 'hit_ms', 'load_ms', 'count']
field_values = []
for field_name in sorted(hash_fields):
value = getattr(self, field_name, None)
field_values.append((field_name, value))
field_values.append(('__class__', self.__class__.__name__))
hash_string = str(field_values)
return hash_string.encode('utf-8')
@dataclass
class NoteList:
"""A collection of notes
play_notes: A list of notes, drumrolls, and balloons that are played by the player
draw_notes: A list of notes, drumrolls, and balloons that are drawn by the player
bars: A list of bars"""
play_notes: list[Note | Drumroll | Balloon] = field(default_factory=lambda: [])
draw_notes: list[Note | Drumroll | Balloon] = field(default_factory=lambda: [])
bars: list[Note] = field(default_factory=lambda: [])
def __add__(self, other: 'NoteList') -> 'NoteList':
return NoteList(
play_notes=self.play_notes + other.play_notes,
draw_notes=self.draw_notes + other.draw_notes,
bars=self.bars + other.bars
)
def __iadd__(self, other: 'NoteList') -> 'NoteList':
self.play_notes += other.play_notes
self.draw_notes += other.draw_notes
self.bars += other.bars
return self
@dataclass
class CourseData:
"""A collection of course metadata
level: number of stars
balloon: list of balloon counts
scoreinit: Unused
scorediff: Unused
is_branching: whether the course has branches
"""
level: int = 0
balloon: list[int] = field(default_factory=lambda: [])
scoreinit: list[int] = field(default_factory=lambda: [])
scorediff: int = 0
is_branching: bool = False
@dataclass
class TJAMetadata:
"""Metadata for a TJA file
title: dictionary for song titles, accessed by language code
subtitle: dictionary for song subtitles, accessed by language code
genre: genre of the song
wave: path to the song's audio file
demostart: start time of the preview
offset: offset of the song's audio file
bpm: beats per minute of the song
bgmovie: path to the song's background movie file
movieoffset: offset of the song's background movie file
scene_preset: background for the song
course_data: dictionary of course metadata, accessed by diff number
"""
title: dict[str, str] = field(default_factory= lambda: {'en': ''})
subtitle: dict[str, str] = field(default_factory= lambda: {'en': ''})
genre: str = ''
wave: Path = Path()
demostart: float = 0.0
offset: float = 0.0
bpm: float = 120.0
bgmovie: Path = Path()
movieoffset: float = 0.0
scene_preset: str = ''
course_data: dict[int, CourseData] = field(default_factory=dict)
@dataclass
class TJAEXData:
"""Extra data for TJA files
new_audio: Contains the word "-New Audio-" in any song title
old_audio: Contains the word "-Old Audio-" in any song title
limited_time: Contains the word "限定" in any song title or subtitle
new: If the TJA file has been created or modified in the last week"""
new_audio: bool = False
old_audio: bool = False
limited_time: bool = False
new: bool = False
def calculate_base_score(notes: NoteList) -> int:
"""Calculate the base score for a song based on the number of notes, balloons, and drumrolls.
Args:
notes (NoteList): The list of notes in the song.
Returns:
int: The base score for the song.
"""
total_notes = 0
balloon_count = 0
drumroll_msec = 0
for i in range(len(notes.play_notes)):
note = notes.play_notes[i]
if i < len(notes.play_notes)-1:
next_note = notes.play_notes[i+1]
else:
next_note = notes.play_notes[len(notes.play_notes)-1]
if isinstance(note, Drumroll):
drumroll_msec += (next_note.hit_ms - note.hit_ms)
elif isinstance(note, Balloon):
balloon_count += min(100, note.count)
elif note.type == 8:
continue
else:
total_notes += 1
if total_notes == 0:
return 1000000
return math.ceil((1000000 - (balloon_count * 100) - (16.920079999994086 * drumroll_msec / 1000 * 100)) / total_notes / 10) * 10
def test_encodings(file_path):
"""Test the encoding of a file by trying different encodings.
Args:
file_path (Path): The path to the file to test.
Returns:
str: The encoding that successfully decoded the file.
"""
encodings = ['utf-8-sig', 'shift-jis', 'utf-8']
final_encoding = None
for encoding in encodings:
try:
_ = file_path.read_text(encoding=encoding).splitlines()
final_encoding = encoding
break
except UnicodeDecodeError:
continue
return final_encoding
logger = logging.getLogger(__name__)
class TJAParser:
"""Parse a TJA file and extract metadata and data.
Args:
path (Path): The path to the TJA file.
start_delay (int): The delay in milliseconds before the first note.
distance (int): The distance between notes.
Attributes:
metadata (TJAMetadata): The metadata extracted from the TJA file.
ex_data (TJAEXData): The extended data extracted from the TJA file.
data (list): The data extracted from the TJA file.
"""
DIFFS = {0: "easy", 1: "normal", 2: "hard", 3: "oni", 4: "edit", 5: "tower", 6: "dan"}
def __init__(self, path: Path, start_delay: int = 0, distance: int = 866):
"""
Initialize a TJA object.
Args:
path (Path): The path to the TJA file.
start_delay (int): The delay in milliseconds before the first note.
distance (int): The distance between notes.
"""
self.file_path: Path = path
encoding = test_encodings(self.file_path)
lines = self.file_path.read_text(encoding=encoding).splitlines()
self.data = [cleaned for line in lines
if (cleaned := strip_comments(line).strip())]
self.metadata = TJAMetadata()
self.ex_data = TJAEXData()
logger.debug(f"Parsing TJA file: {self.file_path}")
self.get_metadata()
self.distance = distance
self.current_ms: float = start_delay
def get_metadata(self):
"""
Extract metadata from the TJA file.
"""
current_diff = None # Track which difficulty we're currently processing
for item in self.data:
if item.startswith('#BRANCH') and current_diff is not None:
self.metadata.course_data[current_diff].is_branching = True
elif item.startswith("#") or item[0].isdigit():
continue
elif item.startswith('SUBTITLE'):
region_code = 'en'
if item[len('SUBTITLE')] != ':':
region_code = (item[len('SUBTITLE'):len('SUBTITLE')+2]).lower()
self.metadata.subtitle[region_code] = ''.join(item.split(':')[1:]).replace('--', '')
if 'ja' in self.metadata.subtitle and '限定' in self.metadata.subtitle['ja']:
self.ex_data.limited_time = True
elif item.startswith('TITLE'):
region_code = 'en'
if item[len('TITLE')] != ':':
region_code = (item[len('TITLE'):len('TITLE')+2]).lower()
self.metadata.title[region_code] = ''.join(item.split(':')[1:])
elif item.startswith('BPM'):
data = item.split(':')[1]
if not data:
logger.warning(f"Invalid BPM value: {data} in TJA file {self.file_path}")
self.metadata.bpm = 0.0
else:
self.metadata.bpm = float(data)
elif item.startswith('WAVE'):
data = item.split(':')[1]
if not data:
logger.warning(f"Invalid WAVE value: {data} in TJA file {self.file_path}")
self.metadata.wave = Path()
else:
self.metadata.wave = self.file_path.parent / data.strip()
elif item.startswith('OFFSET'):
data = item.split(':')[1]
if not data:
logger.warning(f"Invalid OFFSET value: {data} in TJA file {self.file_path}")
self.metadata.offset = 0.0
else:
self.metadata.offset = float(data)
elif item.startswith('DEMOSTART'):
data = item.split(':')[1]
if not data:
logger.warning(f"Invalid DEMOSTART value: {data} in TJA file {self.file_path}")
self.metadata.demostart = 0.0
else:
self.metadata.demostart = float(data)
elif item.startswith('BGMOVIE'):
data = item.split(':')[1]
if not data:
logger.warning(f"Invalid BGMOVIE value: {data} in TJA file {self.file_path}")
self.metadata.bgmovie = Path()
else:
self.metadata.bgmovie = self.file_path.parent / data.strip()
elif item.startswith('MOVIEOFFSET'):
data = item.split(':')[1]
if not data:
logger.warning(f"Invalid MOVIEOFFSET value: {data} in TJA file {self.file_path}")
self.metadata.movieoffset = 0.0
else:
self.metadata.movieoffset = float(data)
elif item.startswith('SCENEPRESET'):
self.metadata.scene_preset = item.split(':')[1]
elif item.startswith('COURSE'):
course = str(item.split(':')[1]).lower().strip()
if course == '6' or course == 'dan':
current_diff = 6
elif course == '5' or course == 'tower':
current_diff = 5
elif course == '4' or course == 'edit' or course == 'ura':
current_diff = 4
elif course == '3' or course == 'oni':
current_diff = 3
elif course == '2' or course == 'hard':
current_diff = 2
elif course == '1' or course == 'normal':
current_diff = 1
elif course == '0' or course == 'easy':
current_diff = 0
else:
logger.error(f"Course level empty in {self.file_path}")
if current_diff is not None:
self.metadata.course_data[current_diff] = CourseData()
elif current_diff is not None:
if item.startswith('LEVEL'):
data = item.split(':')[1]
if not data:
self.metadata.course_data[current_diff].level = 0
logger.warning(f"Invalid LEVEL value: {data} in TJA file {self.file_path}")
else:
self.metadata.course_data[current_diff].level = int(float(data))
elif item.startswith('BALLOONNOR'):
balloon_data = item.split(':')[1]
if balloon_data == '':
logger.debug(f"Invalid BALLOONNOR value: {balloon_data} in TJA file {self.file_path}")
continue
self.metadata.course_data[current_diff].balloon.extend([int(x) for x in balloon_data.split(',') if x != ''])
elif item.startswith('BALLOONEXP'):
balloon_data = item.split(':')[1]
if balloon_data == '':
logger.debug(f"Invalid BALLOONEXP value: {balloon_data} in TJA file {self.file_path}")
continue
self.metadata.course_data[current_diff].balloon.extend([int(x) for x in balloon_data.split(',') if x != ''])
elif item.startswith('BALLOONMAS'):
balloon_data = item.split(':')[1]
if balloon_data == '':
logger.debug(f"Invalid BALLOONMAS value: {balloon_data} in TJA file {self.file_path}")
continue
self.metadata.course_data[current_diff].balloon = [int(x) for x in balloon_data.split(',') if x != '']
elif item.startswith('BALLOON'):
if item.find(':') == -1:
self.metadata.course_data[current_diff].balloon = []
continue
balloon_data = item.split(':')[1]
if balloon_data == '':
continue
self.metadata.course_data[current_diff].balloon = [int(x) for x in balloon_data.split(',') if x != '']
elif item.startswith('SCOREINIT'):
score_init = item.split(':')[1]
if score_init == '':
continue
try:
self.metadata.course_data[current_diff].scoreinit = [int(x) for x in score_init.split(',') if x != '']
except Exception as e:
logger.error(f"Failed to parse SCOREINIT: {e} in TJA file {self.file_path}")
self.metadata.course_data[current_diff].scoreinit = [0, 0]
elif item.startswith('SCOREDIFF'):
score_diff = item.split(':')[1]
if score_diff == '':
continue
self.metadata.course_data[current_diff].scorediff = int(float(score_diff))
for region_code in self.metadata.title:
if '-New Audio-' in self.metadata.title[region_code] or '-新曲-' in self.metadata.title[region_code]:
self.metadata.title[region_code] = self.metadata.title[region_code].replace('-New Audio-', '')
self.metadata.title[region_code] = self.metadata.title[region_code].replace('-新曲-', '')
self.ex_data.new_audio = True
elif '-Old Audio-' in self.metadata.title[region_code] or '-旧曲-' in self.metadata.title[region_code]:
self.metadata.title[region_code] = self.metadata.title[region_code].replace('-Old Audio-', '')
self.metadata.title[region_code] = self.metadata.title[region_code].replace('-旧曲-', '')
self.ex_data.old_audio = True
elif '限定' in self.metadata.title[region_code]:
self.ex_data.limited_time = True
def data_to_notes(self, diff) -> list[list[str]]:
"""
Convert the data to notes.
Args:
diff (int): The difficulty level.
Returns:
list[list[str]]: The notes.
"""
diff_name = self.DIFFS.get(diff, "").lower()
# Use enumerate for single iteration
note_start = note_end = -1
target_found = False
# Find the section boundaries
for i, line in enumerate(self.data):
if line.startswith("COURSE:"):
course_value = line[7:].strip().lower()
target_found = (course_value.isdigit() and int(course_value) == diff) or course_value == diff_name
elif target_found:
if note_start == -1 and line in ("#START", "#START P1"):
note_start = i + 1
elif line == "#END" and note_start != -1:
note_end = i
break
if note_start == -1 or note_end == -1:
return []
# Process the section with minimal string operations
notes = []
bar = []
section_data = self.data[note_start:note_end]
for line in section_data:
if line.startswith("#"):
bar.append(line)
elif line == ',':
if not bar or all(item.startswith('#') for item in bar):
bar.append('')
notes.append(bar)
bar = []
else:
if line.endswith(','):
bar.append(line[:-1])
notes.append(bar)
bar = []
else:
bar.append(line)
if bar: # Add remaining items
notes.append(bar)
return notes
def get_moji(self, play_note_list: list[Note], ms_per_measure: float) -> None:
"""
Assign 口唱歌 (note phoneticization) to notes.
Args:
play_note_list (list[Note]): The list of notes to process.
ms_per_measure (float): The duration of a measure in milliseconds.
Returns:
None
"""
se_notes = {
1: 0,
2: 3,
3: 5,
4: 6,
5: 7,
6: 8,
7: 9,
8: 10,
9: 11
}
if len(play_note_list) <= 1:
return
current_note = play_note_list[-1]
if current_note.type == 1:
current_note.moji = 0
elif current_note.type == 2:
current_note.moji = 3
else:
current_note.moji = se_notes[current_note.type]
prev_note = play_note_list[-2]
if prev_note.type == 1:
timing_threshold = ms_per_measure / 8 - 1
if current_note.hit_ms - prev_note.hit_ms <= timing_threshold:
prev_note.moji = 1
else:
prev_note.moji = 0
elif prev_note.type == 2:
timing_threshold = ms_per_measure / 8 - 1
if current_note.hit_ms - prev_note.hit_ms <= timing_threshold:
prev_note.moji = 4
else:
prev_note.moji = 3
else:
prev_note.moji = se_notes[prev_note.type]
if len(play_note_list) > 3:
notes_minus_4 = play_note_list[-4]
notes_minus_3 = play_note_list[-3]
notes_minus_2 = play_note_list[-2]
consecutive_ones = (
notes_minus_4.type == 1 and
notes_minus_3.type == 1 and
notes_minus_2.type == 1
)
if consecutive_ones:
rapid_timing = (
notes_minus_3.hit_ms - notes_minus_4.hit_ms < (ms_per_measure / 8) and
notes_minus_2.hit_ms - notes_minus_3.hit_ms < (ms_per_measure / 8)
)
if rapid_timing:
if len(play_note_list) > 5:
spacing_before = play_note_list[-4].hit_ms - play_note_list[-5].hit_ms >= (ms_per_measure / 8)
spacing_after = play_note_list[-1].hit_ms - play_note_list[-2].hit_ms >= (ms_per_measure / 8)
if spacing_before and spacing_after:
play_note_list[-3].moji = 2
else:
play_note_list[-3].moji = 2
def notes_to_position(self, diff: int):
"""Parse a TJA's notes into a NoteList."""
master_notes = NoteList()
branch_m: list[NoteList] = []
branch_e: list[NoteList] = []
branch_n: list[NoteList] = []
notes = self.data_to_notes(diff)
balloon = self.metadata.course_data[diff].balloon.copy()
count = 0
index = 0
time_signature = 4/4
bpm = self.metadata.bpm
x_scroll_modifier = 1
y_scroll_modifier = 0
barline_display = True
gogo_time = False
curr_note_list = master_notes.play_notes
curr_draw_list = master_notes.draw_notes
curr_bar_list = master_notes.bars
start_branch_ms = 0
start_branch_bpm = bpm
start_branch_time_sig = time_signature
start_branch_x_scroll = x_scroll_modifier
start_branch_y_scroll = y_scroll_modifier
start_branch_barline = barline_display
start_branch_gogo = gogo_time
branch_balloon_count = 0
is_branching = False
prev_note = None
for bar in notes:
#Length of the bar is determined by number of notes excluding commands
bar_length = sum(len(part) for part in bar if '#' not in part)
barline_added = False
for part in bar:
if part.startswith('#BRANCHSTART'):
start_branch_ms = self.current_ms
start_branch_bpm = bpm
start_branch_time_sig = time_signature
start_branch_x_scroll = x_scroll_modifier
start_branch_y_scroll = y_scroll_modifier
start_branch_barline = barline_display
start_branch_gogo = gogo_time
branch_balloon_count = count
branch_params = part[13:]
if branch_params[0] == 'r':
# Helper function to find and set drumroll branch params
def set_drumroll_branch_params(note_list, bar_list):
for i in range(len(note_list)-1, -1, -1):
if 5 <= note_list[i].type <= 7 or note_list[i].type == 9:
drumroll_ms = note_list[i].hit_ms
for bar_idx in range(len(bar_list)-1, -1, -1):
if bar_list[bar_idx].hit_ms <= drumroll_ms:
bar_list[bar_idx].branch_params = branch_params
return True
break
return False
# Always try to set in master notes
set_drumroll_branch_params(master_notes.play_notes, master_notes.bars)
# If we have existing branches, also apply to them
if branch_m and len(branch_m) > 0:
set_drumroll_branch_params(branch_m[-1].play_notes, branch_m[-1].bars)
if branch_e and len(branch_e) > 0:
set_drumroll_branch_params(branch_e[-1].play_notes, branch_e[-1].bars)
if branch_n and len(branch_n) > 0:
set_drumroll_branch_params(branch_n[-1].play_notes, branch_n[-1].bars)
else:
if len(curr_bar_list) > 1:
curr_bar_list[-2].branch_params = branch_params
elif len(curr_bar_list) > 0:
curr_bar_list[-1].branch_params = branch_params
if branch_m and len(branch_m[-1].bars) > 1:
branch_m[-1].bars[-2].branch_params = branch_params
elif branch_m and len(branch_m[-1].bars) > 0:
branch_m[-1].bars[-1].branch_params = branch_params
if branch_e and len(branch_e[-1].bars) > 1:
branch_e[-1].bars[-2].branch_params = branch_params
elif branch_e and len(branch_e[-1].bars) > 0:
branch_e[-1].bars[-1].branch_params = branch_params
if branch_n and len(branch_n[-1].bars) > 1:
branch_n[-1].bars[-2].branch_params = branch_params
elif branch_n and len(branch_n[-1].bars) > 0:
branch_n[-1].bars[-1].branch_params = branch_params
if branch_m and len(branch_m[-1].bars) > 0:
branch_m[-1].bars[-1].branch_params = branch_params
continue
elif part.startswith('#BRANCHEND'):
curr_note_list = master_notes.play_notes
curr_draw_list = master_notes.draw_notes
curr_bar_list = master_notes.bars
continue
if part == '#M':
branch_m.append(NoteList())
curr_note_list = branch_m[-1].play_notes
curr_draw_list = branch_m[-1].draw_notes
curr_bar_list = branch_m[-1].bars
self.current_ms = start_branch_ms
bpm = start_branch_bpm
time_signature = start_branch_time_sig
x_scroll_modifier = start_branch_x_scroll
y_scroll_modifier = start_branch_y_scroll
barline_display = start_branch_barline
gogo_time = start_branch_gogo
count = branch_balloon_count
is_branching = True
continue
elif part == '#E':
branch_e.append(NoteList())
curr_note_list = branch_e[-1].play_notes
curr_draw_list = branch_e[-1].draw_notes
curr_bar_list = branch_e[-1].bars
self.current_ms = start_branch_ms
bpm = start_branch_bpm
time_signature = start_branch_time_sig
x_scroll_modifier = start_branch_x_scroll
y_scroll_modifier = start_branch_y_scroll
barline_display = start_branch_barline
gogo_time = start_branch_gogo
count = branch_balloon_count
is_branching = True
continue
elif part == '#N':
branch_n.append(NoteList())
curr_note_list = branch_n[-1].play_notes
curr_draw_list = branch_n[-1].draw_notes
curr_bar_list = branch_n[-1].bars
self.current_ms = start_branch_ms
bpm = start_branch_bpm
time_signature = start_branch_time_sig
x_scroll_modifier = start_branch_x_scroll
y_scroll_modifier = start_branch_y_scroll
barline_display = start_branch_barline
gogo_time = start_branch_gogo
count = branch_balloon_count
is_branching = True
continue
if '#LYRIC' in part:
continue
if '#JPOSSCROLL' in part:
continue
elif '#NMSCROLL' in part:
continue
elif '#MEASURE' in part:
divisor = part.find('/')
time_signature = float(part[9:divisor]) / float(part[divisor+1:])
continue
elif '#SCROLL' in part:
scroll_value = part[7:]
if 'i' in scroll_value:
normalized = scroll_value.replace('.i', 'j').replace('i', 'j')
c = complex(normalized)
x_scroll_modifier = c.real
y_scroll_modifier = c.imag
else:
x_scroll_modifier = float(scroll_value)
y_scroll_modifier = 0.0
continue
elif '#BPMCHANGE' in part:
bpm = float(part[11:])
continue
elif '#BARLINEOFF' in part:
barline_display = False
continue
elif '#BARLINEON' in part:
barline_display = True
continue
elif '#GOGOSTART' in part:
gogo_time = True
continue
elif '#GOGOEND' in part:
gogo_time = False
continue
#Unrecognized commands will be skipped for now
elif len(part) > 0 and not part[0].isdigit():
continue
ms_per_measure = get_ms_per_measure(bpm, time_signature)
#Create note object
bar_line = Note()
#Determines how quickly the notes need to move across the screen to reach the judgment circle in time
bar_line.pixels_per_frame_x = get_pixels_per_frame(bpm * time_signature * x_scroll_modifier, time_signature*4, self.distance)
bar_line.pixels_per_frame_y = get_pixels_per_frame(bpm * time_signature * y_scroll_modifier, time_signature*4, self.distance)
pixels_per_ms = get_pixels_per_ms(bar_line.pixels_per_frame_x)
bar_line.hit_ms = self.current_ms
if pixels_per_ms == 0:
bar_line.load_ms = bar_line.hit_ms
else:
bar_line.load_ms = bar_line.hit_ms - (self.distance / pixels_per_ms)
bar_line.type = 0
bar_line.display = barline_display
bar_line.gogo_time = gogo_time
bar_line.bpm = bpm
if barline_added:
bar_line.display = False
if is_branching:
bar_line.is_branch_start = True
is_branching = False
bisect.insort(curr_bar_list, bar_line, key=lambda x: x.load_ms)
barline_added = True
#Empty bar is still a bar, otherwise start increment
if len(part) == 0:
self.current_ms += ms_per_measure
increment = 0
else:
increment = ms_per_measure / bar_length
for item in part:
if item == '.':
continue
if item == '0' or (not item.isdigit()):
self.current_ms += increment
continue
if item == '9' and curr_note_list and curr_note_list[-1].type == 9:
self.current_ms += increment
continue
note = Note()
note.hit_ms = self.current_ms
note.display = True
note.pixels_per_frame_x = bar_line.pixels_per_frame_x
note.pixels_per_frame_y = bar_line.pixels_per_frame_y
pixels_per_ms = get_pixels_per_ms(note.pixels_per_frame_x)
note.load_ms = (note.hit_ms if pixels_per_ms == 0
else note.hit_ms - (self.distance / pixels_per_ms))
note.type = int(item)
note.index = index
note.bpm = bpm
note.gogo_time = gogo_time
note.moji = -1
if item in {'5', '6'}:
note = Drumroll(note)
note.color = 255
elif item in {'7', '9'}:
count += 1
if balloon is None:
raise Exception("Balloon note found, but no count was specified")
if item == '9':
note = Balloon(note, is_kusudama=True)
else:
note = Balloon(note)
note.count = 1 if not balloon else balloon.pop(0)
elif item == '8':
if prev_note is None:
raise ValueError("No previous note found")
new_pixels_per_ms = prev_note.pixels_per_frame_x / (1000 / 60)
if new_pixels_per_ms == 0:
note.load_ms = note.hit_ms
else:
note.load_ms = note.hit_ms - (self.distance / new_pixels_per_ms)
note.pixels_per_frame_x = prev_note.pixels_per_frame_x
self.current_ms += increment
curr_note_list.append(note)
bisect.insort(curr_draw_list, note, key=lambda x: x.load_ms)
self.get_moji(curr_note_list, ms_per_measure)
index += 1
prev_note = note
# Sorting by load_ms is necessary for drawing, as some notes appear on the
# screen slower regardless of when they reach the judge circle
# Bars can be sorted like this because they don't need hit detection
return master_notes, branch_m, branch_e, branch_n
def hash_note_data(self, notes: NoteList):
"""Hashes the note data for the given NoteList."""
n = hashlib.sha256()
list1 = notes.play_notes
list2 = notes.bars
merged: list[Note | Drumroll | Balloon] = []
i = 0
j = 0
while i < len(list1) and j < len(list2):
if list1[i] <= list2[j]:
merged.append(list1[i])
i += 1
else:
merged.append(list2[j])
j += 1
merged.extend(list1[i:])
merged.extend(list2[j:])
for item in merged:
n.update(item.get_hash().encode('utf-8'))
return n.hexdigest()
def modifier_speed(notes: NoteList, value: float):
"""Modifies the speed of the notes in the given NoteList."""
modded_notes = notes.draw_notes.copy()
modded_bars = notes.bars.copy()
for note in modded_notes:
note.pixels_per_frame_x *= value
note.load_ms = note.hit_ms - (866 / get_pixels_per_ms(note.pixels_per_frame_x))
for bar in modded_bars:
bar.pixels_per_frame_x *= value
bar.load_ms = bar.hit_ms - (866 / get_pixels_per_ms(bar.pixels_per_frame_x))
return modded_notes, modded_bars
def modifier_display(notes: NoteList):
"""Modifies the display of the notes in the given NoteList."""
modded_notes = notes.draw_notes.copy()
for note in modded_notes:
note.display = False
return modded_notes
def modifier_inverse(notes: NoteList):
"""Inverts the type of the notes in the given NoteList."""
modded_notes = notes.play_notes.copy()
type_mapping = {1: 2, 2: 1, 3: 4, 4: 3}
for note in modded_notes:
if note.type in type_mapping:
note.type = type_mapping[note.type]
return modded_notes
def modifier_random(notes: NoteList, value: int):
"""Randomly modifies the type of the notes in the given NoteList.
value: 1 == kimagure, 2 == detarame"""
#value: 1 == kimagure, 2 == detarame
modded_notes = notes.play_notes.copy()
percentage = int(len(modded_notes) / 5) * value
selected_notes = random.sample(range(len(modded_notes)), percentage)
type_mapping = {1: 2, 2: 1, 3: 4, 4: 3}
for i in selected_notes:
if modded_notes[i].type in type_mapping:
modded_notes[i].type = type_mapping[modded_notes[i].type]
return modded_notes
def apply_modifiers(notes: NoteList, modifiers: Modifiers):
"""Applies all selected modifiers from global_data to the given NoteList."""
if modifiers.display:
draw_notes = modifier_display(notes)
if modifiers.inverse:
play_notes = modifier_inverse(notes)
play_notes = modifier_random(notes, modifiers.random)
draw_notes, bars = modifier_speed(notes, modifiers.speed)
return deque(play_notes), deque(draw_notes), deque(bars)