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Update osz.py
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Anthony Samms
311
libs/parsers/osz.py
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311
libs/parsers/osz.py
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import hashlib
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import math
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from pathlib import Path
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from libs.parsers.tja import CourseData, Note, NoteType, Drumroll, Balloon, NoteList, TJAEXData, TJAMetadata, TimelineObject
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import re
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class OsuParser:
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general: dict[str, str]
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editor: dict[str, str]
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osu_metadata: dict[str, str]
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difficulty: dict[str, str]
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events: list[list[float]]
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timing_points: list[list[float]]
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hit_objects: list[list[float]]
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bpm: list[float]
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def __init__(self, osu_file: Path):
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self.general = self.read_osu_data_dict(osu_file, target_header="General")
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self.editor = self.read_osu_data_dict(osu_file, target_header="Editor")
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self.osu_metadata = self.read_osu_data_dict(osu_file, target_header="Metadata")
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self.difficulty = self.read_osu_data_dict(osu_file, target_header="Difficulty")
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self.events = self.read_osu_data_list(osu_file, target_header="Events")
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self.timing_points = self.read_osu_data_list(osu_file, target_header="TimingPoints")
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#self.general = self.read_osu_data(osu_file, target_header="Colours", is_dict=True)
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self.hit_objects = self.read_osu_data_list(osu_file, target_header="HitObjects")
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self.slider_multiplier = float(self.difficulty["SliderMultiplier"])
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self.metadata = TJAMetadata()
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self.metadata.wave = osu_file.parent / self.general["AudioFilename"]
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self.metadata.demostart = float(self.general["PreviewTime"]) / 1000
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self.metadata.offset = -30/1000
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self.metadata.title["en"] = self.osu_metadata["Version"]
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self.metadata.subtitle["en"] = self.osu_metadata["Creator"]
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match = re.search(r'\[Events\][\s\S]*?^[ \t]*(\d+),(\d+),"([^"]+)"', osu_file.read_text(), re.MULTILINE)
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if match:
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self.metadata.bgmovie = osu_file.parent / Path(match.group(3))
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self.metadata.course_data[0] = CourseData()
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self.ex_data = TJAEXData()
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self.bpm = []
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for points in self.timing_points:
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self.bpm.append(math.floor(1 / points[1] * 1000 * 60))
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self.osu_NoteList = self.note_data_to_NoteList(self.hit_objects)
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for points in self.timing_points:
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if points[1] > 0:
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obj = TimelineObject()
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obj.hit_ms = points[0]
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obj.bpm = math.floor(1 / points[1] * 1000 * 60)
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self.osu_NoteList[0].timeline.append(obj)
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def read_osu_data_list(self, file_path: Path, target_header="HitObjects") -> list[list[float]]:
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data = []
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current_header = None
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with file_path.open(mode='r', encoding='utf-8') as f:
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for line in f:
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line = line.rstrip("\n")
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if re.match(r"\[\w*\]", line): # header pattern
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current_header = line[1:-1]
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if current_header == target_header:
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if re.match(r"[-+]?\d*\.?\d+" , line): # Events, TimingPoints, HitObjects
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string_array = re.findall(r"[-+]?\d*\.?\d+" , line) # search for floats
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int_array = [float(num_str) for num_str in string_array]
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data.append(int_array)
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else:
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continue
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return data
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def read_osu_data_dict(self, file_path: Path, target_header="HitObjects") -> dict[str, str]:
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data = dict()
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current_header = None
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with file_path.open(mode='r', encoding='utf-8') as f:
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for line in f:
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line = line.rstrip("\n")
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if re.match(r"\[\w*\]", line): # header pattern
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current_header = line[1:-1]
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if current_header == target_header:
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if ':' in line and not line.startswith('['):
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key, value = line.split(':', 1)
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data[key.strip()] = value.strip()
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else:
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continue
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return data
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def get_scroll_multiplier(self, ms: float) -> float:
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base_scroll = (1.0 if 1.37 <= self.slider_multiplier <= 1.47
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else self.slider_multiplier / 1.40)
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current_scroll = 1.0
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for tp in self.timing_points:
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time = tp[0]
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beat_length = tp[1] # positive for BPM, negative for scroll
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if time > ms:
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break
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if beat_length < 0: # This is an inherited (green) timing point
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current_scroll = -100.0 / beat_length
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return current_scroll * base_scroll
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def note_data_to_NoteList(self, note_data) -> tuple[NoteList, list[NoteList], list[NoteList], list[NoteList]]:
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osu_NoteList = NoteList()
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counter = 0
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for line in note_data:
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note_time = line[2]
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scroll = self.get_scroll_multiplier(note_time)
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if (line[3] == 1 or line[3] == 4 or line[3] == 5 or line[3] == 6) and line[4] == 0: # DON
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don = Note()
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don.type = NoteType(1)
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don.hit_ms = line[2]
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don.bpm = self.bpm[0]
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don.scroll_x = scroll
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don.scroll_y = 0
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don.display = True
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don.index = counter
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counter = counter + 1
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don.moji = 1
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osu_NoteList.play_notes.append(don)
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if (line[3] == 1 or line[3] == 4 or line[3] == 5 or line[3] == 6) and (line[4] == 2 or line[4] == 8): # KAT
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kat = Note()
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kat.type = NoteType(2)
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kat.hit_ms = line[2]
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kat.bpm = self.bpm[0]
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kat.scroll_x = scroll
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kat.scroll_y = 0
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kat.display = True
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kat.index = counter
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counter = counter + 1
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kat.moji = 4
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osu_NoteList.play_notes.append(kat)
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if (line[3] == 1 or line[3] == 4 or line[3] == 5 or line[3] == 6) and line[4] == 4: # L-DON
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don = Note()
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don.type = NoteType(3)
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don.hit_ms = line[2]
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don.bpm = self.bpm[0]
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don.scroll_x = scroll
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don.scroll_y = 0
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don.display = True
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don.index = counter
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counter = counter + 1
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don.moji = 5
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osu_NoteList.play_notes.append(don)
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if (line[3] == 1 or line[3] == 4 or line[3] == 5 or line[3] == 6) and (line[4] == 6 or line[4] == 12): # L-KAT
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kat = Note()
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kat.type = NoteType(4)
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kat.hit_ms = line[2]
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kat.bpm = self.bpm[0]
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kat.scroll_x = scroll
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kat.scroll_y = 0
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kat.display = True
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kat.index = counter
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counter = counter + 1
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kat.moji = 6
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osu_NoteList.play_notes.append(kat)
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if (line[3] == 2) and (line[4] == 0): # Drum Roll
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if len(line) >= 9:
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slider_time = line[8] / (float(self.difficulty["SliderMultiplier"]) * 100) * self.timing_points[0][1]
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else:
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slider_time = line[6] / (float(self.difficulty["SliderMultiplier"]) * 100) * self.timing_points[0][1]
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source = Note()
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source.type = NoteType(8)
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source.hit_ms = line[2] + slider_time
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source.bpm = self.bpm[0]
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source.scroll_x = scroll
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source.scroll_y = 0
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source.display = True
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# this is where the index would be if it wasn't a tail note
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source.moji = 7
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slider = Drumroll(source)
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slider.color = 255
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slider.type = NoteType(5)
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slider.hit_ms = line[2]
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slider.bpm = self.bpm[0]
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slider.scroll_x = scroll
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slider.scroll_y = 0
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slider.display = True
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slider.index = counter
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slider.moji = 10
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counter = counter + 1
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source.index = counter
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counter = counter + 1
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osu_NoteList.play_notes.append(slider)
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osu_NoteList.play_notes.append(source)
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if (line[3] == 2) and (line[4] == 4): # L-Drum Roll
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if len(line) >= 9:
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slider_time = line[8] / (float(self.difficulty["SliderMultiplier"]) * 100) * self.timing_points[0][1]
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else:
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slider_time = line[6] / (float(self.difficulty["SliderMultiplier"]) * 100) * self.timing_points[0][1]
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source = Note()
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source.type = NoteType(8)
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source.hit_ms = line[2] + slider_time
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source.bpm = self.bpm[0]
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source.scroll_x = scroll
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source.scroll_y = 0
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source.display = True
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# this is where the index would be if it wasn't a tail note
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source.moji = 8
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slider = Drumroll(source)
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slider.color = 255
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slider.type = NoteType(6)
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slider.hit_ms = line[2]
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slider.bpm = self.bpm[0]
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slider.scroll_x = scroll
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slider.scroll_y = 0
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slider.display = True
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slider.index = counter
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counter = counter + 1
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source.index = counter
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counter = counter + 1
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osu_NoteList.play_notes.append(slider)
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osu_NoteList.play_notes.append(source)
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if (line[3] == 8): # Balloon
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source = Note()
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source.type = NoteType(8)
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source.hit_ms = line[5]
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source.bpm = self.bpm[0]
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source.scroll_x = scroll
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source.scroll_y = 0
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source.display = True
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#source.index = counter
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#counter = counter + 1
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source.moji = 9
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balloon = Balloon(source)
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balloon.type = NoteType(7)
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balloon.hit_ms = line[2]
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balloon.bpm = self.bpm[0]
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balloon.scroll_x = scroll
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balloon.scroll_y = 0
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balloon.display = True
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balloon.index = counter
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counter = counter + 1
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balloon.moji = 10
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'''
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od = int(self.difficulty["OverallDifficulty"])
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# thank you https://github.com/IepIweidieng/osu2tja/blob/dev-iid/osu2tja/osu2tja.py
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hit_multiplier = (5 - 2 * (5 - od) / 5 if od < 5
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else 5 + 2.5 * (od - 5) / 5 if od > 5
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else 5) * 1.65
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'''
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balloon.count = 20#int(max(1, (ret[-1][1] - ret[-2][1]) / 1000 * hit_multiplier))
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# end of 'stolen' code
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source.index = counter
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counter = counter + 1
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osu_NoteList.play_notes.append(balloon)
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osu_NoteList.play_notes.append(source)
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osu_NoteList.draw_notes = osu_NoteList.play_notes.copy()
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return osu_NoteList, [], [], []
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def notes_to_position(self, difficulty):
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return self.osu_NoteList
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def hash_note_data(self, notes: NoteList):
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"""Hashes the note data for the given NoteList."""
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n = hashlib.sha256()
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list1 = notes.play_notes
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list2 = notes.bars
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merged: list[Note | Drumroll | Balloon] = []
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i = 0
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j = 0
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while i < len(list1) and j < len(list2):
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if list1[i] <= list2[j]:
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merged.append(list1[i])
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i += 1
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else:
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merged.append(list2[j])
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j += 1
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merged.extend(list1[i:])
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merged.extend(list2[j:])
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for item in merged:
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n.update(item.get_hash().encode('utf-8'))
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return n.hexdigest()
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