942 lines
30 KiB
Python
942 lines
30 KiB
Python
""" Ziffers classes for the parsed notation """
|
|
from dataclasses import dataclass, field, replace, asdict
|
|
from itertools import product, islice, cycle
|
|
from math import floor
|
|
import operator
|
|
import random
|
|
from copy import deepcopy
|
|
from .defaults import DEFAULT_OPTIONS
|
|
from .scale import note_from_pc, midi_to_pitch_class, midi_to_freq, get_scale_length
|
|
from .common import euclidian_rhythm
|
|
|
|
|
|
@dataclass(kw_only=True)
|
|
class Meta:
|
|
"""Abstract class for all Ziffers items"""
|
|
|
|
kwargs: dict = field(default=None, repr=False)
|
|
|
|
def __post_init__(self):
|
|
if self.kwargs:
|
|
self.update_options(self.kwargs)
|
|
|
|
def replace_options(self, new_values):
|
|
"""Replaces attribute values from dict"""
|
|
for key, value in new_values.items():
|
|
if hasattr(self, key):
|
|
setattr(self, key, value)
|
|
|
|
def update_options(self, new_values):
|
|
"""Updates attribute values only if value is None"""
|
|
for key, value in new_values.items():
|
|
if hasattr(self, key):
|
|
if getattr(self, key) is None:
|
|
setattr(self, key, value)
|
|
|
|
def dict(self):
|
|
"""Returns safe dict from the dataclass"""
|
|
return {k: str(v) for k, v in asdict(self).items()}
|
|
|
|
|
|
@dataclass(kw_only=True)
|
|
class Item(Meta):
|
|
"""Class for all Ziffers text based items"""
|
|
|
|
text: str = field(default=None)
|
|
|
|
def get_updated_item(self, options: dict):
|
|
"""Get updated item with replaced options
|
|
|
|
Args:
|
|
options (dict): Options as a dict
|
|
|
|
Returns:
|
|
Item: Returns updated item
|
|
"""
|
|
self.replace_options(options)
|
|
return self
|
|
|
|
|
|
@dataclass(kw_only=True)
|
|
class Whitespace:
|
|
"""Class for whitespace"""
|
|
|
|
text: str
|
|
|
|
|
|
@dataclass(kw_only=True)
|
|
class Modification(Item):
|
|
"""Superclass for pitch modifications"""
|
|
|
|
key: str
|
|
value: ...
|
|
|
|
def as_options(self):
|
|
"""Return modification as a dict"""
|
|
return {self.key: self.value}
|
|
|
|
|
|
@dataclass(kw_only=True)
|
|
class DurationChange(Modification):
|
|
"""Class for changing duration"""
|
|
|
|
value: float
|
|
key: str = field(default="duration", repr=False, init=False)
|
|
|
|
|
|
@dataclass
|
|
class OctaveChange(Modification):
|
|
"""Class for changing octave"""
|
|
|
|
value: int
|
|
key: str = field(default="octave", repr=False, init=False)
|
|
|
|
|
|
@dataclass(kw_only=True)
|
|
class OctaveAdd(Modification):
|
|
"""Class for modifying octave"""
|
|
|
|
value: int
|
|
key: str = field(default="octave", repr=False, init=False)
|
|
|
|
|
|
@dataclass(kw_only=True)
|
|
class Event(Item):
|
|
"""Abstract class for events with duration"""
|
|
|
|
duration: float = field(default=None)
|
|
|
|
|
|
@dataclass
|
|
class Rest(Event):
|
|
"""Class for rests"""
|
|
|
|
|
|
@dataclass(kw_only=True)
|
|
class Pitch(Event):
|
|
"""Class for pitch in time"""
|
|
|
|
pitch_class: int
|
|
octave: int = field(default=None)
|
|
modifier: int = field(default=0)
|
|
note: int = field(default=None)
|
|
key: str = field(default=None)
|
|
scale: str | list = field(default=None)
|
|
freq: float = field(default=None)
|
|
|
|
def __post_init__(self):
|
|
super().__post_init__()
|
|
if self.text is None:
|
|
self.text = str(self.pitch_class)
|
|
self.update_note()
|
|
|
|
def update_note(self, force: bool = False):
|
|
"""Update note if Key, Scale and Pitch-class are present"""
|
|
if (
|
|
(self.key is not None)
|
|
and (self.scale is not None)
|
|
and (self.pitch_class is not None)
|
|
and (self.note is None or force)
|
|
):
|
|
note = note_from_pc(
|
|
root=self.key,
|
|
pitch_class=self.pitch_class,
|
|
intervals=self.scale,
|
|
modifier=self.modifier if self.modifier is not None else 0,
|
|
octave=self.octave if self.octave is not None else 0,
|
|
)
|
|
self.freq = midi_to_freq(note)
|
|
self.note = note
|
|
|
|
def check_note(self, options: dict):
|
|
"""Check for note modification"""
|
|
if "key" in options and self.key is not options["key"]:
|
|
self.key = options["key"]
|
|
edit = True
|
|
if "scale" in options and self.scale is not options["scale"]:
|
|
self.scale = options["scale"]
|
|
edit = True
|
|
if edit:
|
|
self.update_note(True)
|
|
|
|
def set_note(self, note: int) -> int:
|
|
"""Sets a note for the pitch and returns the note.
|
|
|
|
Args:
|
|
note (int): Midi note
|
|
|
|
Returns:
|
|
int: Returns the saved note
|
|
"""
|
|
self.note = note
|
|
return note
|
|
|
|
def set_freq(self, freq: float):
|
|
"""Set frequency for the pitch object"""
|
|
self.freq = freq
|
|
|
|
# pylint: disable=locally-disabled, unused-argument
|
|
def get_value(self, options) -> int:
|
|
"""Returns the pitch class
|
|
|
|
Returns:
|
|
int: Integer value for the pitch
|
|
"""
|
|
return self.pitch_class
|
|
|
|
|
|
@dataclass(kw_only=True)
|
|
class RandomPitch(Event):
|
|
"""Class for random pitch"""
|
|
|
|
pitch_class: int = field(default=None)
|
|
|
|
def get_value(self, options: dict) -> int:
|
|
"""Return random value
|
|
|
|
Returns:
|
|
int: Returns random pitch
|
|
"""
|
|
return random.randint(
|
|
0, get_scale_length(options.get("scale", "Major")) if options else 9
|
|
)
|
|
|
|
|
|
@dataclass(kw_only=True)
|
|
class RandomPercent(Item):
|
|
"""Class for random percent"""
|
|
|
|
percent: float = field(default=None)
|
|
|
|
|
|
@dataclass(kw_only=True)
|
|
class Chord(Event):
|
|
"""Class for chords"""
|
|
|
|
pitch_classes: list[Pitch] = field(default=None)
|
|
notes: list[int] = field(default=None)
|
|
freqs: list[float] = field(default=None, init=False)
|
|
|
|
def set_notes(self, notes: list[int]):
|
|
"""Set notes to the class"""
|
|
self.notes = notes
|
|
|
|
def update_notes(self, options):
|
|
"""Update notes"""
|
|
notes = []
|
|
freqs = []
|
|
|
|
for pitch in self.pitch_classes:
|
|
pitch.update_options(options)
|
|
pitch.update_note()
|
|
notes.append(pitch.note)
|
|
freqs.append(pitch.freq)
|
|
|
|
self.notes = notes
|
|
self.freqs = freqs
|
|
|
|
|
|
@dataclass(kw_only=True)
|
|
class RomanNumeral(Event):
|
|
"""Class for roman numbers"""
|
|
|
|
value: str = field(default=None)
|
|
chord_type: str = field(default=None)
|
|
notes: list[int] = field(default_factory=[])
|
|
pitch_classes: list = None
|
|
|
|
def set_notes(self, chord_notes: list[int]):
|
|
"""Set notes to roman numeral
|
|
|
|
Args:
|
|
chord_notes (list[int]): List of notes in midi to be added
|
|
"""
|
|
self.notes = chord_notes
|
|
|
|
def set_pitch_classes(self, pitches: list[tuple]):
|
|
"""Set pitch classes to roman numeral
|
|
|
|
Args:
|
|
pitches (list[tuple]): Pitch classes to be added
|
|
"""
|
|
if self.pitch_classes is None:
|
|
self.pitch_classes = []
|
|
for pitch in pitches:
|
|
self.pitch_classes.append(Pitch(**pitch))
|
|
|
|
|
|
@dataclass(kw_only=True)
|
|
class Function(Event):
|
|
"""Class for functions"""
|
|
|
|
run: str = field(default=None)
|
|
|
|
|
|
@dataclass(kw_only=True)
|
|
class VariableAssignment(Item):
|
|
"""Class for defining variables"""
|
|
|
|
variable: str
|
|
value: Item
|
|
pre_eval: bool
|
|
|
|
|
|
@dataclass(kw_only=True)
|
|
class Variable(Item):
|
|
"""Class for using variables"""
|
|
|
|
name: str
|
|
|
|
|
|
@dataclass(kw_only=True)
|
|
class Sequence(Meta):
|
|
"""Class for sequences of items"""
|
|
|
|
values: list
|
|
text: str = field(default=None)
|
|
wrap_start: str = field(default=None, repr=False)
|
|
wrap_end: str = field(default=None, repr=False)
|
|
local_index: int = field(default=0, init=False)
|
|
evaluated_values: list = field(default=None)
|
|
|
|
def __post_init__(self):
|
|
super().__post_init__()
|
|
self.text = self.__collect_text()
|
|
|
|
def __getitem__(self, index):
|
|
return self.values[index]
|
|
|
|
def update_values(self, new_values):
|
|
"""Update value attributes from dict"""
|
|
for key, value in new_values.items():
|
|
for obj in self.values:
|
|
if key != "text" and hasattr(obj, key):
|
|
setattr(obj, key, value)
|
|
|
|
def __collect_text(self) -> str:
|
|
"""Collect text value from values"""
|
|
text = "".join([val.text for val in self.values])
|
|
if self.wrap_start is not None:
|
|
text = self.wrap_start + text
|
|
if self.wrap_end is not None:
|
|
text = text + self.wrap_end
|
|
return text
|
|
|
|
def evaluate_tree(self, options: dict = None, eval_tree: bool = False):
|
|
"""Evaluate the tree and return array of resolved pitches
|
|
|
|
Args:
|
|
options (dict, optional): Options for the pitches. Defaults to None.
|
|
eval_tree (bool, optional): Flag for using the evaluated subtree. Defaults to False.
|
|
"""
|
|
|
|
def _resolve_item(item: Meta, options: dict):
|
|
"""Resolve cyclic value"""
|
|
if isinstance(item, Sequence):
|
|
if isinstance(item, ListOperation):
|
|
yield from item.evaluate(options)
|
|
elif isinstance(item, RepeatedSequence):
|
|
item.evaluate_values(options)
|
|
# TODO: Refactor this. Parsing and validating cycles for integers only?
|
|
if isinstance(item.repeats, Cyclic):
|
|
repeats = item.repeats.get_value().get_value(options)
|
|
else:
|
|
repeats = item.repeats.get_value(options)
|
|
yield from _normal_repeat(item.evaluated_values, repeats, options)
|
|
elif isinstance(item, RepeatedListSequence):
|
|
repeats = item.repeats.get_value(options)
|
|
yield from _generative_repeat(item, repeats, options)
|
|
elif isinstance(item, Subdivision):
|
|
item.evaluate_values(options)
|
|
yield item
|
|
else:
|
|
yield from item.evaluate_tree(options)
|
|
elif isinstance(item, VariableAssignment):
|
|
if item.pre_eval:
|
|
pre_options = options.copy()
|
|
pre_options["pre_eval"] = True
|
|
options[item.variable.name] = Sequence(
|
|
values=list(_resolve_item(item.value, pre_options))
|
|
)
|
|
else:
|
|
options[item.variable.name] = item.value
|
|
elif isinstance(item, Variable):
|
|
if options[item.name]:
|
|
variable = deepcopy(options[item.name])
|
|
yield from _resolve_item(variable, options)
|
|
elif isinstance(item, Range):
|
|
yield from item.evaluate(options)
|
|
elif isinstance(item, Cyclic):
|
|
yield from _resolve_item(item.get_value(), options)
|
|
elif isinstance(item, Euclid):
|
|
yield from _euclidean_items(item, options)
|
|
elif isinstance(item, Modification):
|
|
options = _update_options(item, options)
|
|
elif isinstance(item, Meta): # Filters whitespace
|
|
yield _update_item(item, options)
|
|
|
|
def _update_item(item, options):
|
|
"""Update or create new pitch"""
|
|
if set(("key", "scale")) <= options.keys():
|
|
if isinstance(item, Pitch):
|
|
item.update_options(options)
|
|
item.update_note()
|
|
if options.get("pre_eval",False):
|
|
item.duration = options["duration"]
|
|
if isinstance(item, Rest):
|
|
item.update_options(options)
|
|
elif isinstance(item, (RandomPitch, RandomInteger)):
|
|
item = _create_pitch(item, options)
|
|
elif isinstance(item, Chord):
|
|
item.update_options(options)
|
|
item.update_notes(options)
|
|
elif isinstance(item, RomanNumeral):
|
|
item = _create_chord_from_roman(item, options)
|
|
return item
|
|
|
|
# pylint: disable=locally-disabled, unused-variable
|
|
def _generative_repeat(tree: list, times: int, options: dict):
|
|
"""Repeats items and generates new random values"""
|
|
for i in range(times):
|
|
for item in tree.evaluate_tree(options):
|
|
yield from _resolve_item(item, options)
|
|
|
|
# pylint: disable=locally-disabled, unused-variable
|
|
def _normal_repeat(tree: list, times: int, options: dict):
|
|
"""Repeats items with the same random values"""
|
|
for i in range(times):
|
|
for item in tree:
|
|
yield from _resolve_item(item, options)
|
|
|
|
def _euclidean_items(euclid: Item, options: dict):
|
|
"""Loops values from generated euclidean sequence"""
|
|
euclid.evaluate(options)
|
|
for item in euclid.evaluated_values:
|
|
yield from _resolve_item(item, options)
|
|
|
|
def _loop_items(items, options):
|
|
for item in items:
|
|
yield from _resolve_item(item, options)
|
|
|
|
def _update_options(current: Item, options: dict) -> dict:
|
|
"""Update options based on current item"""
|
|
if isinstance(current, (OctaveChange, DurationChange)):
|
|
options[current.key] = current.value
|
|
elif isinstance(current, OctaveAdd):
|
|
if current.key in options: # Add to existing value
|
|
options[current.key] += current.value
|
|
else: # Create value if not existing
|
|
options[current.key] = current.value
|
|
return options
|
|
|
|
def _create_pitch_without_note(current: Item, options: dict) -> Pitch:
|
|
return Pitch(pitch_class=current.get_value(options))
|
|
|
|
def _create_pitch(current: Item, options: dict) -> Pitch:
|
|
"""Create pitch based on values and options"""
|
|
|
|
if "modifier" in options:
|
|
c_modifier = options["modifier"]
|
|
else:
|
|
c_modifier = 0
|
|
|
|
if hasattr(current, "modifier") and current.modifier is not None:
|
|
c_modifier += current.modifier
|
|
|
|
if "octave" in options:
|
|
c_octave = options["octave"]
|
|
else:
|
|
c_octave = 0
|
|
|
|
if hasattr(current, "octave") and current.octave is not None:
|
|
c_octave += current.octave
|
|
current_value = current.get_value(options)
|
|
note = note_from_pc(
|
|
root=options["key"],
|
|
pitch_class=current_value,
|
|
intervals=options["scale"],
|
|
modifier=c_modifier,
|
|
octave=c_octave,
|
|
)
|
|
new_pitch = Pitch(
|
|
pitch_class=current_value,
|
|
text=str(current_value),
|
|
note=note,
|
|
freq=midi_to_freq(note),
|
|
octave=c_octave,
|
|
modifier=c_modifier,
|
|
kwargs=options,
|
|
)
|
|
return new_pitch
|
|
|
|
def _create_chord_from_roman(current: RomanNumeral, options: dict) -> Chord:
|
|
"""Create chord fom roman numeral"""
|
|
key = options["key"]
|
|
scale = options["scale"]
|
|
pitch_text = ""
|
|
pitch_classes = []
|
|
chord_notes = []
|
|
for note in current.notes:
|
|
pitch_dict = midi_to_pitch_class(note, key, scale)
|
|
pitch_classes.append(
|
|
Pitch(
|
|
pitch_class=pitch_dict["pitch_class"],
|
|
kwargs=(pitch_dict | options),
|
|
)
|
|
)
|
|
pitch_text += pitch_dict["text"]
|
|
chord_notes.append(
|
|
note_from_pc(
|
|
root=key,
|
|
pitch_class=pitch_dict["pitch_class"],
|
|
intervals=scale,
|
|
modifier=pitch_dict.get("modifier", 0),
|
|
octave=pitch_dict.get("octave", 0),
|
|
)
|
|
)
|
|
|
|
chord = Chord(
|
|
text=pitch_text,
|
|
pitch_classes=pitch_classes,
|
|
notes=chord_notes,
|
|
kwargs=options,
|
|
)
|
|
return chord
|
|
|
|
# Start of the main function: Evaluate and flatten the Ziffers object tree
|
|
values = self.evaluated_values if eval_tree else self.values
|
|
for item in values:
|
|
yield from _resolve_item(item, options)
|
|
|
|
def filter(self, keep: tuple):
|
|
"""Filter out items from sequence.
|
|
|
|
Args:
|
|
keep (tuple): Tuple describing classes to keep
|
|
|
|
Returns:
|
|
Sequence: Copy of the sequence with filtered values.
|
|
"""
|
|
return replace(
|
|
self, values=[item for item in self.values if isinstance(item, keep)]
|
|
)
|
|
|
|
|
|
@dataclass(kw_only=True)
|
|
class Ziffers(Sequence):
|
|
"""Main class for holding options and the current state"""
|
|
|
|
options: dict = field(default_factory=DEFAULT_OPTIONS.copy())
|
|
start_options: dict = None
|
|
loop_i: int = field(default=0, init=False)
|
|
cycle_i: int = field(default=0, init=False)
|
|
iterator = None
|
|
current: Item = field(default=None)
|
|
cycle_length: int = field(default=0, init=False)
|
|
|
|
def __getitem__(self, index):
|
|
self.loop_i = index % self.cycle_length
|
|
new_cycle = floor(index / self.cycle_length)
|
|
if new_cycle > self.cycle_i or new_cycle < self.cycle_i:
|
|
self.re_eval(self.options)
|
|
self.cycle_i = new_cycle
|
|
self.cycle_length = len(self.evaluated_values)
|
|
self.loop_i = index % self.cycle_length
|
|
return self.evaluated_values[self.loop_i]
|
|
|
|
def __iter__(self):
|
|
return self
|
|
|
|
def __next__(self):
|
|
self.current = next(self.iterator)
|
|
self.loop_i += 1
|
|
return self.current
|
|
|
|
# pylint: disable=locally-disabled, dangerous-default-value
|
|
def init_opts(self, options=None):
|
|
"""Evaluate the Ziffers tree using the options"""
|
|
self.options.update(DEFAULT_OPTIONS.copy())
|
|
if options:
|
|
self.options.update(options)
|
|
else:
|
|
self.options = DEFAULT_OPTIONS.copy()
|
|
|
|
self.start_options = self.options.copy()
|
|
self.init_tree(self.options)
|
|
|
|
def re_eval(self, options=None):
|
|
"""Re-evaluate the iterator"""
|
|
self.options = self.start_options.copy()
|
|
if options:
|
|
self.options.update(options)
|
|
self.init_tree(self.options)
|
|
|
|
def init_tree(self, options):
|
|
"""Initialize evaluated values and perform post-evaluation"""
|
|
self.evaluated_values = list(self.evaluate_tree(options))
|
|
self.evaluated_values = list(self.post_evaluation())
|
|
self.iterator = iter(self.evaluated_values)
|
|
self.cycle_length = len(self.evaluated_values)
|
|
|
|
def post_evaluation(self):
|
|
"""Post-evaluation performs evaluation that can only be done after initial evaluation"""
|
|
for item in self.evaluated_values:
|
|
if isinstance(item, Subdivision):
|
|
yield from item.evaluate_durations()
|
|
else:
|
|
yield item
|
|
|
|
def get_list(self):
|
|
"""Return list"""
|
|
return list(self)
|
|
|
|
def take(self, num: int) -> list[Pitch]:
|
|
"""Take number of pitch classes from the parsed sequence. Cycles from the beginning.
|
|
|
|
Args:
|
|
num (int): Number of pitch classes to take from the sequence
|
|
|
|
Returns:
|
|
list: List of pitch class items
|
|
"""
|
|
return list(islice(cycle(self), num))
|
|
|
|
def loop(self) -> iter:
|
|
"""Return cyclic loop"""
|
|
return cycle(iter(self))
|
|
|
|
def set_defaults(self, options: dict):
|
|
"""Sets options for the parser
|
|
|
|
Args:
|
|
options (dict): Options as a dict
|
|
"""
|
|
self.options = DEFAULT_OPTIONS.copy() | options
|
|
|
|
def pitch_classes(self) -> list[int]:
|
|
"""Return list of pitch classes as ints"""
|
|
return [
|
|
val.pitch_class for val in self.evaluated_values if isinstance(val, Pitch)
|
|
]
|
|
|
|
def notes(self) -> list[int]:
|
|
"""Return list of midi notes"""
|
|
return [val.note for val in self.evaluated_values if isinstance(val, Pitch)]
|
|
|
|
def durations(self) -> list[float]:
|
|
"""Return list of pitch durations as floats"""
|
|
return [val.duration for val in self.evaluated_values if isinstance(val, Event)]
|
|
|
|
def pairs(self) -> list[tuple]:
|
|
"""Return list of pitches and durations"""
|
|
return [
|
|
(val.pitch_class, val.duration)
|
|
for val in self.evaluated_values
|
|
if isinstance(val, Pitch)
|
|
]
|
|
|
|
def octaves(self) -> list[int]:
|
|
"""Return list of octaves"""
|
|
return [val.octave for val in self.evaluated_values if isinstance(val, Pitch)]
|
|
|
|
|
|
@dataclass(kw_only=True)
|
|
class ListSequence(Sequence):
|
|
"""Class for Ziffers list sequences"""
|
|
|
|
wrap_start: str = field(default="(", repr=False)
|
|
wrap_end: str = field(default=")", repr=False)
|
|
|
|
|
|
@dataclass(kw_only=True)
|
|
class Integer(Item):
|
|
"""Class for integers"""
|
|
|
|
value: int
|
|
|
|
# pylint: disable=locally-disabled, unused-argument
|
|
def get_value(self, options):
|
|
"""Return value of the integer"""
|
|
return self.value
|
|
|
|
|
|
@dataclass(kw_only=True)
|
|
class RandomInteger(Item):
|
|
"""Class for random integer"""
|
|
|
|
min: int
|
|
max: int
|
|
|
|
def __post_init__(self):
|
|
super().__post_init__()
|
|
if self.min > self.max:
|
|
new_max = self.min
|
|
self.min = self.max
|
|
self.max = new_max
|
|
|
|
# pylint: disable=locally-disabled, unused-argument
|
|
def get_value(self, options: dict = None):
|
|
"""Evaluate the random value for the generator"""
|
|
return random.randint(self.min, self.max)
|
|
|
|
|
|
@dataclass(kw_only=True)
|
|
class RepeatedListSequence(Sequence):
|
|
"""Class for Ziffers list sequences"""
|
|
|
|
repeats: RandomInteger | Integer = field(default_factory=Integer(value=1, text="1"))
|
|
wrap_start: str = field(default="(:", repr=False)
|
|
wrap_end: str = field(default=":)", repr=False)
|
|
|
|
|
|
@dataclass(kw_only=True)
|
|
class Subdivision(Sequence):
|
|
"""Class for subdivisions"""
|
|
|
|
full_duration: float = field(default=None, init=False)
|
|
|
|
def evaluate_values(self, options):
|
|
"""Evaluate values and store to evaluated_values"""
|
|
self.full_duration = options["duration"]
|
|
self.evaluated_values = list(self.evaluate_tree(options))
|
|
|
|
def evaluate_durations(self, duration=None):
|
|
"""Calculate new durations by dividing with the number of items in the sequence"""
|
|
if duration is None:
|
|
duration = self.full_duration
|
|
new_d = duration / len(self.evaluated_values)
|
|
for item in self.evaluated_values:
|
|
if isinstance(item, Subdivision):
|
|
yield from item.evaluate_durations(new_d)
|
|
if isinstance(item, Event):
|
|
if duration is not None:
|
|
item.duration = new_d
|
|
yield item
|
|
|
|
|
|
@dataclass(kw_only=True)
|
|
class Cyclic(Item):
|
|
"""Class for cyclic sequences"""
|
|
|
|
values: list
|
|
cycle: int = 0
|
|
wrap_start: str = field(default="<", repr=False)
|
|
wrap_end: str = field(default=">", repr=False)
|
|
|
|
def __post_init__(self):
|
|
super().__post_init__()
|
|
self.text = self.__collect_text()
|
|
self.values = [val for val in self.values if not isinstance(val, Whitespace)]
|
|
|
|
def __collect_text(self) -> str:
|
|
"""Collect text value from values"""
|
|
text = "".join([val.text for val in self.values])
|
|
if self.wrap_start is not None:
|
|
text = self.wrap_start + text
|
|
if self.wrap_end is not None:
|
|
text = text + self.wrap_end
|
|
return text
|
|
|
|
def get_value(self):
|
|
"""Get the value for the current cycle"""
|
|
value = self.values[self.cycle % len(self.values)]
|
|
self.cycle += 1
|
|
return value
|
|
|
|
|
|
@dataclass(kw_only=True)
|
|
class Range(Item):
|
|
"""Class for range"""
|
|
|
|
start: int = field(default=None)
|
|
end: int = field(default=None)
|
|
|
|
def evaluate(self, options):
|
|
"""Evaluates range and generates a generator of Pitches"""
|
|
if self.start < self.end:
|
|
for i in range(self.start, self.end + 1):
|
|
yield Pitch(pitch_class=i, kwargs=options)
|
|
elif self.start > self.end:
|
|
for i in reversed(range(self.end, self.start + 1)):
|
|
yield Pitch(pitch_class=i, kwargs=options)
|
|
else:
|
|
yield Pitch(pitch_class=self.start, kwargs=options)
|
|
|
|
|
|
@dataclass(kw_only=True)
|
|
class Operator(Item):
|
|
"""Class for math operators"""
|
|
|
|
value: ...
|
|
|
|
|
|
@dataclass(kw_only=True)
|
|
class ListOperation(Sequence):
|
|
"""Class for list operations"""
|
|
|
|
evaluated_values: list = None
|
|
|
|
def evaluate(self, options=DEFAULT_OPTIONS.copy()):
|
|
"""Evaluates the operation"""
|
|
|
|
def filter_operation(input_list):
|
|
flattened_list = []
|
|
|
|
# TODO: ADD Options here and evaluate events?
|
|
for item in input_list:
|
|
if isinstance(item, (list, Sequence)):
|
|
if isinstance(item, ListOperation):
|
|
flattened_list.extend(item.evaluated_values)
|
|
else:
|
|
flattened_list.append(filter_operation(item))
|
|
elif isinstance(item, Cyclic):
|
|
value = item.get_value()
|
|
if isinstance(value, Sequence):
|
|
flattened_list.extend(filter_operation(value))
|
|
elif isinstance(value, (Event, RandomInteger, Integer)):
|
|
flattened_list.append(value)
|
|
elif isinstance(item, Range):
|
|
flattened_list.extend(list(item.evaluate(options)))
|
|
elif isinstance(item, (Event, RandomInteger, Integer)):
|
|
flattened_list.append(item)
|
|
|
|
if isinstance(input_list, Sequence):
|
|
return replace(input_list, values=flattened_list)
|
|
|
|
return flattened_list
|
|
|
|
operators = self.values[1::2] # Fetch every second operator element
|
|
values = self.values[::2] # Fetch every second list element
|
|
values = filter_operation(values) # Filter out
|
|
if len(values) == 1:
|
|
return values[0] # If right hand doesnt contain anything sensible
|
|
left = values[0] # Start results with the first array
|
|
|
|
for i, operand in enumerate(operators):
|
|
operation = operand.value
|
|
right = values[i + 1]
|
|
pairs = product(
|
|
(right.values if isinstance(right, Sequence) else [right]), left
|
|
)
|
|
left = [
|
|
# TODO: Get options from x value?
|
|
Pitch(
|
|
pitch_class=operation(x.get_value(options), y.get_value(options)),
|
|
kwargs=options,
|
|
)
|
|
for (x, y) in pairs
|
|
]
|
|
return left
|
|
|
|
|
|
@dataclass(kw_only=True)
|
|
class Operation(Item):
|
|
"""Class for lisp-like operations: (+ 1 2 3) etc."""
|
|
|
|
values: list
|
|
operator: operator
|
|
|
|
|
|
@dataclass(kw_only=True)
|
|
class Eval(Sequence):
|
|
"""Class for evaluation notation"""
|
|
|
|
result: ... = None
|
|
wrap_start: str = field(default="{", repr=False)
|
|
wrap_end: str = field(default="}", repr=False)
|
|
|
|
def __post_init__(self):
|
|
super().__post_init__()
|
|
self.result = eval(self.text)
|
|
|
|
|
|
@dataclass(kw_only=True)
|
|
class Atom(Item):
|
|
"""Class for evaluable atoms"""
|
|
|
|
value: ...
|
|
|
|
|
|
@dataclass(kw_only=True)
|
|
class Euclid(Item):
|
|
"""Class for euclidean cycles"""
|
|
|
|
pulses: int
|
|
length: int
|
|
onset: ListSequence
|
|
offset: ListSequence = field(default=None)
|
|
rotate: int = field(default=0)
|
|
evaluated_values: list = field(default=None)
|
|
|
|
def evaluate(self, options):
|
|
"""Evaluate values using euclidean spread"""
|
|
onset_values = [
|
|
val for val in self.onset.values if not isinstance(val, Whitespace)
|
|
]
|
|
onset_length = len(onset_values)
|
|
booleans = euclidian_rhythm(self.pulses, self.length, self.rotate)
|
|
self.evaluated_values = []
|
|
|
|
if self.offset is not None:
|
|
offset_values = [
|
|
val for val in self.offset.values if not isinstance(val, Whitespace)
|
|
]
|
|
offset_length = len(offset_values)
|
|
|
|
on_i = 0
|
|
off_i = 0
|
|
|
|
for i in range(self.length):
|
|
if booleans[i]:
|
|
value = onset_values[on_i % onset_length]
|
|
on_i += 1
|
|
else:
|
|
if self.offset is None:
|
|
value = Rest(duration=options["duration"])
|
|
else:
|
|
value = offset_values[off_i % offset_length]
|
|
off_i += 1
|
|
|
|
self.evaluated_values.append(value)
|
|
|
|
|
|
@dataclass(kw_only=True)
|
|
class RepeatedSequence(Sequence):
|
|
"""Class for repeats"""
|
|
|
|
repeats: RandomInteger | Integer = field(default_factory=Integer(value=1, text="1"))
|
|
wrap_start: str = field(default="[:", repr=False)
|
|
wrap_end: str = field(default=":]", repr=False)
|
|
local_options: dict = field(default_factory=dict, init=False)
|
|
|
|
evaluated_values: list = None
|
|
|
|
def evaluate_values(self, options):
|
|
"""Evaluate values and store to evaluated_values"""
|
|
self.evaluated_values = list(self.evaluate(options))
|
|
|
|
def evaluate(self, options: dict):
|
|
"""Evaluate repeated sequence partially. Leaves Cycles intact."""
|
|
self.local_options = options.copy()
|
|
for item in self.values:
|
|
if isinstance(item, Sequence):
|
|
if isinstance(item, ListOperation):
|
|
yield from item.evaluate_tree(self.local_options, True)
|
|
elif isinstance(item, RepeatedSequence):
|
|
yield item
|
|
else:
|
|
yield from item
|
|
elif isinstance(item, Cyclic):
|
|
yield item # Return the cycle instead of values
|
|
elif isinstance(item, Modification):
|
|
self.local_options = self.local_options | item.as_options()
|
|
elif isinstance(item, Rest):
|
|
yield item.get_updated_item(self.local_options)
|
|
elif isinstance(item, Range):
|
|
yield from item.evaluate(self.local_options)
|
|
elif isinstance(item, (Event, RandomInteger)):
|
|
yield Pitch(
|
|
pitch_class=item.get_value(self.local_options),
|
|
kwargs=self.local_options,
|
|
)
|