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https://github.com/Yonokid/PyTaiko.git
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235 lines
9.3 KiB
Python
235 lines
9.3 KiB
Python
import time
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import os
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import pyray as ray
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from collections import deque
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#TJA Format creator is unknown. I did not create the format, but I did write the parser though.
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def rounded(d):
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sign = 1 if (d >= 0) else -1
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d = abs(d)
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n = int(d)
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if (d - n >= 0.5): n += 1
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return sign * n
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def get_current_ms():
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return rounded(time.time() * 1000)
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def stripComments(code):
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result = ''
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index = 0
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is_line = True
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for line in code.splitlines():
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comment_index = line.find('//')
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if comment_index == -1:
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result += line
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is_line = True
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elif comment_index != 0 and not line[:comment_index].isspace():
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result += line[:comment_index]
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is_line = True
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else:
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is_line = False
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index += 1
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return result
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def get_pixels_per_frame(bpm, fps, time_signature, distance):
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beat_duration = fps / bpm
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total_time = time_signature * beat_duration
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total_frames = fps * total_time
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return (distance / total_frames) * (fps/60)
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class tja_parser:
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def __init__(self, path):
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#Defined on startup
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self.folder_path = path
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self.folder_name = self.folder_path.split('\\')[-1]
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self.file_path = f'{self.folder_path}\\{self.folder_name}.tja'
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#Defined on file_to_data()
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self.data = []
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#Defined on get_metadata()
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self.title = ''
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self.title_ja = ''
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self.subtitle = ''
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self.subtitle_ja = ''
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self.wave = f'{self.folder_path}\\'
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self.offset = 0
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self.demo_start = 0
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self.course_data = dict()
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#Defined in metadata but can change throughout the chart
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self.bpm = 120
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self.time_signature = 4/4
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self.distance = 0
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self.fps = 60
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self.scroll_modifier = 1
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self.current_ms = 0
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self.barline_display = True
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def file_to_data(self):
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with open(self.file_path, 'rt', encoding='utf-8-sig') as tja_file:
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for line in tja_file:
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line = stripComments(line).strip()
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if line != '':
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self.data.append(str(line))
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return self.data
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def get_metadata(self):
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self.file_to_data()
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diff_index = 1
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highest_diff = -1
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for item in self.data:
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if item[0] == '#':
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continue
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elif 'SUBTITLEJA' in item: self.subtitle_ja = str(item.split('SUBTITLEJA:')[1])
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elif 'TITLEJA' in item: self.title_ja = str(item.split('TITLEJA:')[1])
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elif 'SUBTITLE' in item: self.subtitle = str(item.split('SUBTITLE:')[1][2:])
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elif 'TITLE' in item: self.title = str(item.split('TITLE:')[1])
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elif 'BPM' in item: self.bpm = float(item.split(':')[1])
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elif 'WAVE' in item: self.wave += str(item.split(':')[1])
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elif 'OFFSET' in item: self.offset = float(item.split(':')[1])
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elif 'DEMOSTART' in item: self.demo_start = float(item.split(':')[1])
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elif 'COURSE' in item:
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course = str(item.split(':')[1]).lower()
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if course == 'edit' or course == '4':
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self.course_data[4] = []
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elif course == 'oni' or course == '3':
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self.course_data[3] = []
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elif course == 'hard' or course == '2':
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self.course_data[2] = []
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elif course == 'normal' or course == '1':
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self.course_data[1] = []
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elif course == 'easy' or course == '0':
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self.course_data[0] = []
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highest_diff = max(self.course_data)
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diff_index -= 1
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elif 'LEVEL' in item:
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item = int(item.split(':')[1])
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self.course_data[diff_index+highest_diff].append(item)
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elif 'BALLOON' in item:
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item = item.split(':')[1]
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if item == '':
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continue
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self.course_data[diff_index+highest_diff].append([int(x) for x in item.split(',')])
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elif 'SCOREINIT' in item:
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if item.split(':')[1] == '':
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continue
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item = item.split(':')[1]
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self.course_data[diff_index+highest_diff].append([int(x) for x in item.split(',')])
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elif 'SCOREDIFF' in item:
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if item.split(':')[1] == '':
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continue
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item = int(item.split(':')[1])
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self.course_data[diff_index+highest_diff].append(item)
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return [self.title, self.title_ja, self.subtitle, self.subtitle_ja, self.bpm, self.wave, self.offset, self.demo_start, self.course_data]
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def data_to_notes(self, diff):
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self.file_to_data()
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#Get notes start and end
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note_start = -1
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note_end = -1
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diff_count = 0
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for i in range(len(self.data)):
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if self.data[i] == '#START':
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note_start = i+1
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elif self.data[i] == '#END':
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note_end = i
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diff_count += 1
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if diff_count == len(self.course_data) - diff:
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break
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notes = []
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bar = []
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#Check for measures and separate when comma exists
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for i in range(note_start, note_end):
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item = self.data[i].strip(',')
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bar.append(item)
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if item != self.data[i]:
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notes.append(bar)
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bar = []
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return notes, self.course_data[diff][1]
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def notes_to_position(self, diff):
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play_note_list = deque()
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bar_list = deque()
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draw_note_list = deque()
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notes, balloon = self.data_to_notes(diff)
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index = 0
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balloon_index = 0
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drumroll_head = dict()
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drumroll_tail = dict()
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for bar in notes:
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#Length of the bar is determined by number of notes excluding commands
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bar_length = sum(len(part) for part in bar if '#' not in part)
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for part in bar:
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if '#JPOSSCROLL' in part:
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continue
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elif '#NMSCROLL' in part:
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continue
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elif '#MEASURE' in part:
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divisor = part.find('/')
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self.time_signature = float(part[9:divisor]) / float(part[divisor+1:])
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continue
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elif '#SCROLL' in part:
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self.scroll_modifier = float(part[7:])
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continue
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elif '#BPMCHANGE' in part:
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self.bpm = float(part[11:])
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continue
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elif '#BARLINEOFF' in part:
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self.barline_display = False
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continue
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elif '#BARLINEON' in part:
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self.barline_display = True
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continue
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#Unrecognized commands will be skipped for now
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elif '#' in part:
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continue
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#https://gist.github.com/KatieFrogs/e000f406bbc70a12f3c34a07303eec8b#measure
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ms_per_measure = 60000 * (self.time_signature*4) / self.bpm
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#Determines how quickly the notes need to move across the screen to reach the judgment circle in time
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pixels_per_frame = get_pixels_per_frame(self.bpm * self.time_signature * self.scroll_modifier, self.fps, self.time_signature*4, self.distance)
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pixels_per_ms = pixels_per_frame / (1000 / self.fps)
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bar_ms = self.current_ms
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load_ms = bar_ms - (self.distance / pixels_per_ms)
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if self.barline_display:
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bar_list.append({'note': 'barline', 'ms': bar_ms, 'load_ms': load_ms, 'ppf': pixels_per_frame})
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#Empty bar is still a bar, otherwise start increment
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if len(part) == 0:
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self.current_ms += ms_per_measure
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increment = 0
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else:
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increment = ms_per_measure / bar_length
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for note in part:
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note_ms = self.current_ms
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load_ms = note_ms - (self.distance / pixels_per_ms)
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#Do not add blank notes otherwise lag
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if note != '0':
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play_note_list.append({'note': note, 'ms': note_ms, 'load_ms': load_ms, 'ppf': pixels_per_frame, 'index': index})
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#print({'note': note, 'ms': int(note_ms), 'load_ms': int(load_ms), 'ppf': int(pixels_per_frame), 'index': index})
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index += 1
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if note in ('5', '6', '8'):
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play_note_list[-1]['color'] = 255
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if note == '8' and play_note_list[-2]['note'] in ('7', '9'):
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play_note_list[-1]['balloon'] = int(balloon[balloon_index])
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balloon_index += 1
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self.current_ms += increment
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# https://stackoverflow.com/questions/72899/how-to-sort-a-list-of-dictionaries-by-a-value-of-the-dictionary-in-python
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# Sorting by load_ms is necessary for drawing, as some notes appear on the
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# screen slower regardless of when they reach the judge circle
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# Bars can be sorted like this because they don't need hit detection
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draw_note_list = deque(sorted(play_note_list, key=lambda d: d['load_ms']))
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bar_list = deque(sorted(bar_list, key=lambda d: d['load_ms']))
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return play_note_list, draw_note_list, bar_list
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