Moving things around
This commit is contained in:
3
ziffers/classes/__init__.py
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3
ziffers/classes/__init__.py
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from .items import *
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from .sequences import *
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from .root import *
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592
ziffers/classes/items.py
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592
ziffers/classes/items.py
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""" Ziffers item classes """
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from dataclasses import dataclass, field, asdict
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import operator
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import random
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from ..scale import (
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note_from_pc,
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midi_to_pitch_class,
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midi_to_freq,
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get_scale_length,
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chord_from_degree,
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)
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from ..common import repeat_text
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@dataclass(kw_only=True)
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class Meta:
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"""Abstract class for all Ziffers items"""
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kwargs: dict = field(default=None, repr=False)
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local_options: dict = field(default_factory=dict)
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def __post_init__(self):
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if self.kwargs:
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self.update_options(self.kwargs)
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def replace_options(self, new_values):
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"""Replaces attribute values from dict"""
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for key, value in new_values.items():
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if hasattr(self, key):
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setattr(self, key, value)
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def update_options(self, options):
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"""Updates attribute values only if value is None"""
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merged_options = self.local_options | options
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for key, value in merged_options.items():
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if hasattr(self, key):
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if key == "octave":
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local_value = self.local_options.get("octave", False)
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oct_change = self.local_options.get("octave_change", False)
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if oct_change:
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setattr(self, key, oct_change)
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elif local_value:
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setattr(self, key, value + local_value)
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elif getattr(self, key) is None:
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setattr(self, key, value)
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elif getattr(self, key) is None:
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local_value = self.local_options.get(key, False)
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if local_value:
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setattr(self, key, local_value)
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else:
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setattr(self, key, value)
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def dict(self):
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"""Returns safe dict from the dataclass"""
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return {k: str(v) for k, v in asdict(self).items()}
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@dataclass(kw_only=True)
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class Item(Meta):
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"""Class for all Ziffers text based items"""
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text: str = field(default=None)
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measure: int = field(default=0, init=False)
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def get_updated_item(self, options: dict):
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"""Get updated item with replaced options
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Args:
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options (dict): Options as a dict
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Returns:
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Item: Returns updated item
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"""
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self.replace_options(options)
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return self
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def get_options(self) -> dict:
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"""Return local options from item
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Returns:
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dict: Options as a dict
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"""
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keys = ["octave", "modifier", "key", "scale", "duration"]
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return {key: getattr(self, key) for key in keys if hasattr(self, key)}
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@dataclass(kw_only=True)
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class Whitespace:
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"""Class for whitespace"""
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text: str
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@dataclass(kw_only=True)
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class Modification(Item):
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"""Superclass for pitch modifications"""
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key: str
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value: ...
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def as_options(self):
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"""Return modification as a dict"""
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return {self.key: self.value}
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@dataclass(kw_only=True)
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class DurationChange(Modification):
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"""Class for changing duration"""
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value: float
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key: str = field(default="duration", repr=False, init=False)
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@dataclass
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class OctaveChange(Modification):
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"""Class for changing octave"""
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value: int
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key: str = field(default="octave", repr=False, init=False)
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@dataclass(kw_only=True)
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class OctaveAdd(Modification):
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"""Class for modifying octave"""
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value: int
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key: str = field(default="octave", repr=False, init=False)
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@dataclass(kw_only=True)
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class Event(Item):
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"""Abstract class for events with duration"""
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duration: float = field(default=None)
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@dataclass
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class Rest(Event):
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"""Class for rests"""
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@dataclass
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class Measure(Item):
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"""Class for measures/bars. Used to reset default options."""
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text: str = field(default="|", init=False)
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def reset_options(self, options: dict):
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"""Reset options when measure changes"""
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next_measure = options.get("measure", 0) + 1
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start_options = options["start_options"].copy()
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options.clear()
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options.update(start_options)
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options["measure"] = next_measure
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options["start_options"] = start_options.copy()
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self.measure = next_measure
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@dataclass(kw_only=True)
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class Pitch(Event):
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"""Class for pitch in time"""
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pitch_class: int
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octave: int = field(default=None)
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modifier: int = field(default=None)
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note: int = field(default=None)
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key: str = field(default=None)
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scale: str | list = field(default=None)
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freq: float = field(default=None)
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beat: float = field(default=None)
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def __post_init__(self):
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super().__post_init__()
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if self.text is None:
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self.text = str(self.pitch_class)
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self.update_note()
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# self._update_text()
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def _update_text(self):
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if self.octave is not None:
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self.text = repeat_text("^", "_", self.octave) + self.text
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if self.modifier is not None:
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self.text = repeat_text("#", "b", self.modifier) + self.text
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def get_note(self):
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"""Getter for note"""
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return self.note
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def get_freq(self):
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"""Getter for freq"""
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return self.freq
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def get_octave(self):
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"""Getter for octave"""
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return self.octave
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def get_beat(self):
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"""Getter for beat"""
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return self.beat
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def get_pitch_class(self):
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"""Getter for pitche"""
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return self.pitch_class
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def get_duration(self):
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"""Getter for duration"""
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return self.duration
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def update_note(self, force: bool = False):
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"""Update note if Key, Scale and Pitch-class are present"""
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if (
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(self.key is not None)
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and (self.scale is not None)
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and (self.pitch_class is not None)
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and (self.note is None or force)
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):
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note = note_from_pc(
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root=self.key,
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pitch_class=self.pitch_class,
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intervals=self.scale,
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modifier=self.modifier if self.modifier is not None else 0,
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octave=self.octave if self.octave is not None else 0,
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)
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self.freq = midi_to_freq(note)
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self.note = note
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if self.duration is not None:
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self.beat = self.duration * 4
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def check_note(self, options: dict):
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"""Check for note modification"""
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if "key" in options and self.key is not options["key"]:
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self.key = options["key"]
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edit = True
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if "scale" in options and self.scale is not options["scale"]:
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self.scale = options["scale"]
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edit = True
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if edit:
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self.update_note(True)
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def set_note(self, note: int) -> int:
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"""Sets a note for the pitch and returns the note.
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Args:
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note (int): Midi note
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Returns:
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int: Returns the saved note
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"""
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self.note = note
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return note
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def set_freq(self, freq: float):
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"""Set frequency for the pitch object"""
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self.freq = freq
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# pylint: disable=locally-disabled, unused-argument
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def get_value(self, options) -> int:
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"""Returns the pitch class
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Returns:
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int: Integer value for the pitch
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"""
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return self.pitch_class
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@dataclass(kw_only=True)
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class RandomPitch(Event):
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"""Class for random pitch"""
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pitch_class: int = field(default=None)
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def get_value(self, options: dict) -> int:
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"""Return random value
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Returns:
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int: Returns random pitch
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"""
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return random.randint(
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0, get_scale_length(options.get("scale", "Major")) if options else 9
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)
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@dataclass(kw_only=True)
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class RandomPercent(Item):
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"""Class for random percent"""
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percent: float = field(default=None)
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@dataclass(kw_only=True)
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class Chord(Event):
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"""Class for chords"""
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pitch_classes: list[Pitch] = field(default=None)
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notes: list[int] = field(default=None)
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inversions: int = field(default=None)
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pitches: list[int] = field(default=None, init=False)
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freqs: list[float] = field(default=None, init=False)
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octaves: list[int] = field(default=None, init=False)
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durations: list[float] = field(default=None, init=False)
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beats: list[float] = field(default=None, init=False)
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def __post_init__(self):
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if self.inversions is not None:
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self.invert(self.inversions)
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@property
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def note(self):
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"""Synonym for notes"""
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return self.notes
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def set_notes(self, notes: list[int]):
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"""Set notes to the class"""
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self.notes = notes
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def get_note(self):
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"""Getter for notes"""
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return self.notes
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def get_freq(self):
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"""Getter for freqs"""
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return self.freqs
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def get_octave(self):
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"""Getter for octaves"""
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return self.octaves
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def get_beat(self):
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"""Getter for beats"""
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return self.beats
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def get_pitch_class(self):
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"""Getter for pitches"""
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return self.pitches
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def get_duration(self):
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"""Getter for durations"""
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return self.durations
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def invert(self, value: int):
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"""Chord inversion"""
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new_pitches = (
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list(reversed(self.pitch_classes)) if value < 0 else self.pitch_classes
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)
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for _ in range(abs(value)):
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new_pitch = new_pitches[_ % len(new_pitches)]
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if not new_pitch.local_options.get("octave"):
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new_pitch.local_options["octave"] = 0
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new_pitch.local_options["octave"] += -1 if value <= 0 else 1
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self.pitch_classes = new_pitches
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def update_notes(self, options=None):
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"""Update notes"""
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pitches, notes, freqs, octaves, durations, beats = ([] for _ in range(6))
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# Update notes
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for pitch in self.pitch_classes:
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if options is not None:
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pitch.update_options(options)
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pitch.update_note(True)
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# Sort by generated notes
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self.pitch_classes = sorted(self.pitch_classes, key=lambda x: x.note)
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# Create helper lists
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for pitch in self.pitch_classes:
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pitches.append(pitch.pitch_class)
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notes.append(pitch.note)
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freqs.append(pitch.freq)
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octaves.append(pitch.octave)
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durations.append(pitch.duration)
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beats.append(pitch.beat)
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self.pitches = pitches
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self.notes = notes
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self.freqs = freqs
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self.octaves = octaves
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self.durations = durations
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self.duration = durations[0]
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self.beats = beats
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self.text = "".join([val.text for val in self.pitch_classes])
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@dataclass(kw_only=True)
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class RomanNumeral(Event):
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"""Class for roman numbers"""
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value: str = field(default=None)
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chord_type: str = field(default=None)
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notes: list[int] = field(default=None, init=False)
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pitch_classes: list = field(default=None, init=False)
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inversions: int = field(default=None)
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evaluated_chord: Chord = None
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def set_notes(self, chord_notes: list[int]):
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"""Set notes to roman numeral
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Args:
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chord_notes (list[int]): List of notes in midi to be added
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"""
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self.notes = chord_notes
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def set_pitch_classes(self, pitches: list[tuple]):
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"""Set pitch classes to roman numeral
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Args:
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pitches (list[tuple]): Pitch classes to be added
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"""
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if self.pitch_classes is None:
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self.pitch_classes = []
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for pitch in pitches:
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self.pitch_classes.append(Pitch(**pitch))
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def evaluate_chord(self, options: dict) -> Chord:
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"""Create chord fom roman numeral"""
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key = options["key"]
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scale = options["scale"]
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pitch_text = ""
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pitch_classes = []
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self.notes = chord_from_degree(
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self.value, self.chord_type, options["scale"], options["key"]
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)
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for note in self.notes:
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pitch_dict = midi_to_pitch_class(note, key, scale)
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pitch_classes.append(
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Pitch(
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pitch_class=pitch_dict["pitch_class"],
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note=note,
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freq=midi_to_freq(note),
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kwargs=(options | pitch_dict),
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)
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)
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pitch_text += pitch_dict["text"]
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chord = Chord(
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text=pitch_text,
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pitch_classes=pitch_classes,
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duration=options["duration"],
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notes=self.notes,
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kwargs=options,
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inversions=self.inversions,
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)
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chord.update_notes(options)
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self.evaluated_chord = chord
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return chord
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@dataclass(kw_only=True)
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class Function(Event):
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"""Class for functions"""
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run: ... = field(default=None)
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@dataclass(kw_only=True)
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class FunctionList(Event):
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"""Class for functions"""
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values: list
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@dataclass(kw_only=True)
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class VariableAssignment(Item):
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"""Class for defining variables"""
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variable: str
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value: Item
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pre_eval: bool
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||||
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@dataclass(kw_only=True)
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class Variable(Event):
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"""Class for using variables"""
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name: str
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||||
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@dataclass(kw_only=True)
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class VariableList(Item):
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"""Class for using variables"""
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values: list
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@dataclass(kw_only=True)
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class Integer(Item):
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"""Class for integers"""
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value: int
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# pylint: disable=locally-disabled, unused-argument
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def get_value(self, options):
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"""Return value of the integer"""
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return self.value
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||||
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@dataclass(kw_only=True)
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class RandomInteger(Item):
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"""Class for random integer"""
|
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min: int
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max: int
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||||
def __post_init__(self):
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||||
super().__post_init__()
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if self.min > self.max:
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new_max = self.min
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self.min = self.max
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self.max = new_max
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||||
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# pylint: disable=locally-disabled, unused-argument
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def get_value(self, options: dict = None):
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"""Evaluate the random value for the generator"""
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return random.randint(self.min, self.max)
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||||
|
||||
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@dataclass(kw_only=True)
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class Cyclic(Item):
|
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"""Class for cyclic sequences"""
|
||||
|
||||
values: list
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||||
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, options=None):
|
||||
"""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"""
|
||||
merged_options = options | self.local_options
|
||||
if options["octave"]:
|
||||
merged_options["octave"] += options["octave"]
|
||||
if self.start < self.end:
|
||||
for i in range(self.start, self.end + 1):
|
||||
yield Pitch(pitch_class=i, kwargs=merged_options)
|
||||
elif self.start > self.end:
|
||||
for i in reversed(range(self.end, self.start + 1)):
|
||||
yield Pitch(pitch_class=i, kwargs=merged_options)
|
||||
else:
|
||||
yield Pitch(pitch_class=self.start, kwargs=merged_options)
|
||||
|
||||
|
||||
@dataclass(kw_only=True)
|
||||
class Operator(Item):
|
||||
"""Class for math operators"""
|
||||
|
||||
value: ...
|
||||
|
||||
|
||||
@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 Atom(Item):
|
||||
"""Class for evaluable atoms"""
|
||||
|
||||
value: ...
|
||||
154
ziffers/classes/root.py
Normal file
154
ziffers/classes/root.py
Normal file
@ -0,0 +1,154 @@
|
||||
"""Root class for Ziffers object"""
|
||||
|
||||
from dataclasses import dataclass, field
|
||||
from itertools import islice, cycle
|
||||
from ..defaults import DEFAULT_OPTIONS
|
||||
from .items import Item, Pitch, Chord, Event
|
||||
from .sequences import Sequence, Subdivision
|
||||
|
||||
|
||||
@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 = index // self.cycle_length
|
||||
# Re-evaluate if the prior loop has ended
|
||||
if new_cycle > self.cycle_i or new_cycle < self.cycle_i:
|
||||
self.re_eval()
|
||||
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.options["start_options"] = self.start_options
|
||||
self.init_tree(self.options)
|
||||
|
||||
def re_eval(self):
|
||||
"""Re-evaluate the iterator"""
|
||||
self.options = self.start_options.copy()
|
||||
self.options["start_options"] = self.start_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.get_pitch_class()
|
||||
for val in self.evaluated_values
|
||||
if isinstance(val, (Pitch, Chord))
|
||||
]
|
||||
|
||||
def notes(self) -> list[int]:
|
||||
"""Return list of midi notes"""
|
||||
return [
|
||||
val.get_note()
|
||||
for val in self.evaluated_values
|
||||
if isinstance(val, (Pitch, Chord))
|
||||
]
|
||||
|
||||
def durations(self) -> list[float]:
|
||||
"""Return list of pitch durations as floats"""
|
||||
return [
|
||||
val.get_duration()
|
||||
for val in self.evaluated_values
|
||||
if isinstance(val, Event)
|
||||
]
|
||||
|
||||
def beats(self) -> list[float]:
|
||||
"""Return list of pitch durations as floats"""
|
||||
return [
|
||||
val.get_beat() for val in self.evaluated_values if isinstance(val, Event)
|
||||
]
|
||||
|
||||
def pairs(self) -> list[tuple]:
|
||||
"""Return list of pitches and durations"""
|
||||
return [
|
||||
(val.get_pitch_class(), val.get_duration())
|
||||
for val in self.evaluated_values
|
||||
if isinstance(val, Pitch)
|
||||
]
|
||||
|
||||
def octaves(self) -> list[int]:
|
||||
"""Return list of octaves"""
|
||||
return [
|
||||
val.get_octave()
|
||||
for val in self.evaluated_values
|
||||
if isinstance(val, (Pitch, Chord))
|
||||
]
|
||||
|
||||
def freqs(self) -> list[int]:
|
||||
"""Return list of octaves"""
|
||||
return [
|
||||
val.get_freq()
|
||||
for val in self.evaluated_values
|
||||
if isinstance(val, (Pitch, Chord))
|
||||
]
|
||||
601
ziffers/classes/sequences.py
Normal file
601
ziffers/classes/sequences.py
Normal file
@ -0,0 +1,601 @@
|
||||
""" Sequence classes for Ziffers """
|
||||
from dataclasses import dataclass, field, replace
|
||||
from itertools import product
|
||||
from types import LambdaType
|
||||
from copy import deepcopy
|
||||
from ..defaults import DEFAULT_OPTIONS
|
||||
from ..common import cyclic_zip, euclidian_rhythm
|
||||
from ..scale import note_from_pc, midi_to_freq
|
||||
from .items import (
|
||||
Meta,
|
||||
Item,
|
||||
Event,
|
||||
DurationChange,
|
||||
OctaveChange,
|
||||
OctaveAdd,
|
||||
Pitch,
|
||||
Rest,
|
||||
RandomPitch,
|
||||
Chord,
|
||||
RomanNumeral,
|
||||
Cyclic,
|
||||
RandomInteger,
|
||||
Range,
|
||||
Integer,
|
||||
VariableAssignment,
|
||||
Variable,
|
||||
VariableList,
|
||||
Measure,
|
||||
Function,
|
||||
Modification,
|
||||
Whitespace,
|
||||
)
|
||||
|
||||
|
||||
@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()
|
||||
self.update_local_options()
|
||||
|
||||
def __getitem__(self, index):
|
||||
return self.values[index]
|
||||
|
||||
def __len__(self):
|
||||
return len(self.values)
|
||||
|
||||
def update_local_options(self):
|
||||
"""Update value attributes from dict"""
|
||||
if self.local_options:
|
||||
for obj in self.values:
|
||||
if isinstance(obj, Event):
|
||||
if obj.local_options:
|
||||
obj.local_options = (
|
||||
obj.local_options | self.local_options.copy()
|
||||
)
|
||||
else:
|
||||
obj.local_options = self.local_options.copy()
|
||||
|
||||
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)
|
||||
repeats = item.repeats.get_value(options)
|
||||
if not isinstance(repeats, int):
|
||||
repeats = _resolve_repeat_value(repeats)
|
||||
yield from _normal_repeat(item.evaluated_values, repeats, options)
|
||||
elif isinstance(item, RepeatedListSequence):
|
||||
repeats = item.repeats.get_value(options)
|
||||
if not isinstance(repeats, int):
|
||||
repeats = _resolve_repeat_value(repeats)
|
||||
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]:
|
||||
if item.name in options:
|
||||
opt_item = options[item.name]
|
||||
if isinstance(opt_item, LambdaType):
|
||||
yield Function(run=opt_item, text=item.text, kwargs=options)
|
||||
variable = deepcopy(opt_item)
|
||||
yield from _resolve_item(variable, options)
|
||||
elif isinstance(item, VariableList):
|
||||
seqlist = []
|
||||
for var in item.values:
|
||||
if var.name in options:
|
||||
opt_item = options[var.name]
|
||||
if isinstance(opt_item, LambdaType):
|
||||
seqlist.append(
|
||||
Function(run=opt_item, text=var.text, kwargs=options)
|
||||
)
|
||||
elif isinstance(opt_item, Sequence):
|
||||
seqlist.append(opt_item)
|
||||
if len(seqlist) > 0:
|
||||
yield PolyphonicSequence(values=seqlist)
|
||||
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 = _parse_options(item, options)
|
||||
elif isinstance(item, Measure):
|
||||
item.reset_options(options)
|
||||
elif isinstance(item, Meta): # Filters whitespace
|
||||
yield _update_item(item, options)
|
||||
|
||||
def _resolve_repeat_value(item):
|
||||
while isinstance(item, Cyclic):
|
||||
item = item.get_value(options)
|
||||
if isinstance(item, Pitch):
|
||||
return item.get_value(options)
|
||||
if isinstance(item, Integer):
|
||||
return item.get_value(options)
|
||||
return item
|
||||
|
||||
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 = item.evaluate_chord(options)
|
||||
return item
|
||||
|
||||
def _generative_repeat(tree: list, times: int, options: dict):
|
||||
"""Repeats items and generates new random values"""
|
||||
for _ in range(times):
|
||||
for item in tree.evaluate_tree(options):
|
||||
yield from _resolve_item(item, options)
|
||||
|
||||
def _normal_repeat(tree: list, times: int, options: dict):
|
||||
"""Repeats items with the same random values"""
|
||||
for _ 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 _parse_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(current: Item, options: dict) -> Pitch:
|
||||
"""Create pitch based on values and options"""
|
||||
|
||||
merged_options = options | self.local_options
|
||||
|
||||
if "modifier" in merged_options:
|
||||
c_modifier = merged_options["modifier"]
|
||||
else:
|
||||
c_modifier = 0
|
||||
|
||||
if hasattr(current, "modifier") and current.modifier is not None:
|
||||
c_modifier += current.modifier
|
||||
|
||||
if "octave" in merged_options:
|
||||
c_octave = merged_options["octave"]
|
||||
if "octave" in options:
|
||||
c_octave = options["octave"] + c_octave
|
||||
else:
|
||||
c_octave = 0
|
||||
|
||||
if hasattr(current, "octave") and current.octave is not None:
|
||||
c_octave += current.octave
|
||||
|
||||
current_value = current.get_value(merged_options)
|
||||
|
||||
note = note_from_pc(
|
||||
root=merged_options["key"],
|
||||
pitch_class=current_value,
|
||||
intervals=merged_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=merged_options,
|
||||
)
|
||||
return new_pitch
|
||||
|
||||
# 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 PolyphonicSequence:
|
||||
values: list
|
||||
|
||||
|
||||
@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 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 ListOperation(Sequence):
|
||||
"""Class for list operations"""
|
||||
|
||||
evaluated_values: list = None
|
||||
|
||||
def evaluate(self, options=DEFAULT_OPTIONS.copy()):
|
||||
"""Evaluates the operation"""
|
||||
|
||||
def _filter_whitespace(input_list):
|
||||
for item in input_list:
|
||||
if isinstance(item, Meta):
|
||||
yield item
|
||||
|
||||
def _filter_operation(input_list, options):
|
||||
"""Filter and evaluate values"""
|
||||
flattened_list = []
|
||||
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, options))
|
||||
elif isinstance(item, Cyclic):
|
||||
value = item.get_value()
|
||||
if isinstance(value, Sequence):
|
||||
flattened_list.extend(_filter_operation(value, options))
|
||||
elif isinstance(value, (Event, RandomInteger, Integer)):
|
||||
flattened_list.append(value)
|
||||
elif isinstance(item, Modification):
|
||||
options = options | item.as_options()
|
||||
elif isinstance(item, RomanNumeral):
|
||||
item = item.evaluate_chord(options)
|
||||
flattened_list.append(item)
|
||||
elif isinstance(item, Range):
|
||||
flattened_list.extend(list(item.evaluate(options)))
|
||||
elif isinstance(item, (Event, RandomInteger, Integer)):
|
||||
item.update_options(options)
|
||||
flattened_list.append(item)
|
||||
|
||||
if isinstance(input_list, Sequence):
|
||||
return replace(input_list, values=flattened_list)
|
||||
|
||||
return flattened_list
|
||||
|
||||
def _vertical_arpeggio(left, right, options):
|
||||
"""Vertical arpeggio operation, eg. (135)@(q 1 2 021)"""
|
||||
left = _filter_operation(left, options)
|
||||
right = _filter_operation(right, options)
|
||||
left = list(left.evaluate_tree(options))
|
||||
right = list(right.evaluate_tree(options))
|
||||
arp_items = []
|
||||
|
||||
for item in left:
|
||||
for index in right:
|
||||
pcs = item.pitch_classes
|
||||
if isinstance(index, Pitch):
|
||||
new_pitch = deepcopy(pcs[index.get_value(options) % len(pcs)])
|
||||
new_pitch.duration = index.duration
|
||||
arp_items.append(new_pitch)
|
||||
else: # Should be a chord
|
||||
new_pitches = []
|
||||
for pitch in index.pitch_classes:
|
||||
new_pitch = deepcopy(
|
||||
pcs[pitch.get_value(options) % len(pcs)]
|
||||
)
|
||||
new_pitch.duration = pitch.duration
|
||||
new_pitches.append(new_pitch)
|
||||
new_chord = Chord(pitch_classes=new_pitches, kwargs=options)
|
||||
new_chord.update_notes()
|
||||
new_chord.text = "".join(
|
||||
[val.text for val in new_chord.pitch_classes]
|
||||
)
|
||||
arp_items.append(new_chord)
|
||||
|
||||
return Sequence(values=arp_items)
|
||||
|
||||
def _horizontal_arpeggio(left, right, options):
|
||||
"""Horizontal arpeggio operation, eg. (1 2 3 4)#(0 3 2 1)"""
|
||||
left = _filter_operation(left, options)
|
||||
right = _filter_operation(right, options)
|
||||
left = list(left.evaluate_tree(options))
|
||||
right = list(right.evaluate_tree(options))
|
||||
arp_items = []
|
||||
for index in right:
|
||||
new_item = deepcopy(left[index.get_value(options) % len(left)])
|
||||
arp_items.append(new_item)
|
||||
return Sequence(values=arp_items)
|
||||
|
||||
def _cyclic_zip(left, right, options):
|
||||
"""Cyclic zip operaiton, eg. (q e)<>(1 2 3)"""
|
||||
left = list(_filter_whitespace(left))
|
||||
right = list(_filter_whitespace(right))
|
||||
result = Sequence(values=cyclic_zip(left, right))
|
||||
return _filter_operation(result, options)
|
||||
|
||||
def _python_operations(left, right, options):
|
||||
"""Python math operations"""
|
||||
|
||||
def __chord_operation(chord, pitch_y, yass, options):
|
||||
"""Operation for single chords"""
|
||||
new_pitches = []
|
||||
pitch_y = pitch_y.get_value(options)
|
||||
for pitch_x in chord.pitch_classes:
|
||||
pitch_x = pitch_x.pitch_class
|
||||
new_pitch = Pitch(
|
||||
pitch_class=operation(
|
||||
pitch_y if yass else pitch_x, pitch_x if yass else pitch_y
|
||||
),
|
||||
kwargs=options,
|
||||
)
|
||||
new_pitches.append(new_pitch)
|
||||
new_chord = Chord(pitch_classes=new_pitches, kwargs=options)
|
||||
new_chord.update_notes()
|
||||
return new_chord
|
||||
|
||||
# _python_operation starts. Filter & evaluate items.
|
||||
|
||||
left = _filter_operation(left, options)
|
||||
if isinstance(right, Sequence):
|
||||
right = _filter_operation(right, options)
|
||||
elif isinstance(right, Cyclic):
|
||||
right = right.get_value(options)
|
||||
|
||||
# Create product of items.
|
||||
pairs = product(
|
||||
(right.values if isinstance(right, Sequence) else [right]), left
|
||||
)
|
||||
|
||||
results = []
|
||||
for first, second in pairs:
|
||||
if isinstance(first, Chord) and isinstance(second, Chord):
|
||||
new_pitches = []
|
||||
for pitch_x in first.pitch_classes:
|
||||
for pitch_y in second.pitch_classes:
|
||||
new_pitch = Pitch(
|
||||
pitch_class=operation(
|
||||
pitch_x.pitch_class, pitch_y.pitch_class
|
||||
),
|
||||
kwargs=options,
|
||||
)
|
||||
new_pitches.append(new_pitch)
|
||||
new_chord = Chord(pitch_classes=new_pitches, kwargs=options)
|
||||
new_chord.update_notes()
|
||||
outcome = new_chord
|
||||
elif isinstance(first, Chord):
|
||||
outcome = __chord_operation(first, second, False, options)
|
||||
elif isinstance(second, Chord):
|
||||
outcome = __chord_operation(second, first, True, options)
|
||||
else:
|
||||
outcome = Pitch(
|
||||
pitch_class=operation(
|
||||
first.get_value(options), second.get_value(options)
|
||||
),
|
||||
kwargs=second.get_options(),
|
||||
)
|
||||
results.append(outcome)
|
||||
return results
|
||||
|
||||
# Start of the evaluate() function
|
||||
|
||||
operators = self.values[1::2] # Fetch every second operator element
|
||||
values = self.values[::2] # Fetch every second list element
|
||||
# values = _filter_operation(values, options) # 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]
|
||||
if isinstance(operation, str):
|
||||
if operation == "vertical":
|
||||
left = _vertical_arpeggio(left, right, options)
|
||||
elif operation == "horizontal":
|
||||
left = _horizontal_arpeggio(left, right, options)
|
||||
if operation == "zip":
|
||||
left = _cyclic_zip(left, right, options)
|
||||
else:
|
||||
left = _python_operations(left, right, options)
|
||||
return left
|
||||
|
||||
|
||||
@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 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)
|
||||
|
||||
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
|
||||
elif isinstance(item, Subdivision):
|
||||
item.evaluate_values(options)
|
||||
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, (Pitch, Chord, RomanNumeral)):
|
||||
yield item
|
||||
elif isinstance(item, (Event, RandomInteger)):
|
||||
yield Pitch(
|
||||
pitch_class=item.get_value(self.local_options),
|
||||
kwargs=self.local_options,
|
||||
)
|
||||
|
||||
|
||||
@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)
|
||||
Reference in New Issue
Block a user