BuboBubo/ziffers-python
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Some refactoring

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This commit is contained in:
Miika Alonen
2023-02-15 19:44:40 +02:00
parent 726dc42902
commit 10f66d0027
3 changed files with 1631 additions and 1583 deletions
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114
ziffers/classes.py
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@ -4,7 +4,7 @@ from itertools import product, islice, cycle
import operator
import random
from .defaults import DEFAULT_OPTIONS
from .scale import note_from_pc, midi_to_pitch_class, midi_to_freq
from .scale import note_from_pc, midi_to_pitch_class, midi_to_freq, get_scale_length
@dataclass(kw_only=True)
@ -15,16 +15,16 @@ class Meta:
def __post_init__(self):
if self.kwargs:
self.update_new(self.kwargs)
self.update_options(self.kwargs)
def update(self, new_values):
"""Update attributes from dict"""
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_new(self, new_values):
"""Updates new attributes from dict"""
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:
@ -169,15 +169,13 @@ class RandomPitch(Event):
pitch_class: int = field(default=None)
# FIXME: Get scale length as max somehow?
# pylint: disable=locally-disabled, unused-argument
def get_value(self) -> int:
def get_value(self, options: dict) -> int:
"""Return random value
Returns:
int: Returns random pitch
"""
return random.randint(0, 9)
return random.randint(0, get_scale_length(options.get("scale","Major")) if options else 9)
@dataclass(kw_only=True)
@ -197,7 +195,15 @@ class Chord(Event):
def set_notes(self, notes: list[int]):
"""Set notes to the class"""
self.notes = notes
def update_notes(self, options):
"""Update notes"""
notes = []
for pitch in self.pitch_classes:
pitch.update_options(options)
pitch.update_note()
notes.append(pitch.note)
self.notes = notes
@dataclass(kw_only=True)
class RomanNumeral(Event):
@ -277,41 +283,41 @@ class Sequence(Meta):
eval_tree (bool, optional): Flag for using the evaluated subtree. Defaults to False.
"""
def resolve_item(item: Meta, options: dict):
def _resolve_item(item: Meta, options: dict):
"""Resolve cyclic value"""
if isinstance(item, Sequence):
if isinstance(item, ListOperation):
yield from item.evaluate_tree(options, True)
elif isinstance(item, RepeatedSequence):
repeats = item.repeats.get_value()
yield from normal_repeat(item.evaluated_values, repeats, options)
yield from _normal_repeat(item.evaluated_values, repeats, options)
elif isinstance(item, RepeatedListSequence):
repeats = item.repeats.get_value()
yield from generative_repeat(item, repeats, options)
yield from _generative_repeat(item, repeats, options)
else:
yield from item.evaluate_tree(options)
elif isinstance(item, Cyclic):
yield from resolve_item(item.get_value(), options)
yield from _resolve_item(item.get_value(), options)
elif isinstance(item, Modification):
options = update_options(item, options)
options = _update_options(item, options)
elif isinstance(item, Meta): # Filters whitespace
yield update_item(item, options)
yield _update_item(item, options)
# pylint: disable=locally-disabled, unused-variable
def generative_repeat(tree: list, times: int, options: dict):
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)
yield from _resolve_item(item, options)
# pylint: disable=locally-disabled, unused-variable
def normal_repeat(tree: list, times: int, options: dict):
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)
yield from _resolve_item(item, options)
def update_options(current: Item, options: dict) -> dict:
def _update_options(current: Item, options: dict) -> dict:
"""Update options based on current item"""
if current.item_type == "change": # Change options
options[current.key] = current.value
@ -322,7 +328,7 @@ class Sequence(Meta):
options[current.key] = current.value
return options
def create_pitch(current: Item, options: dict) -> dict:
def _create_pitch(current: Item, options: dict) -> dict:
"""Create pitch based on values and options"""
if "modifier" in options:
@ -340,17 +346,17 @@ class Sequence(Meta):
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.get_value(),
pitch_class=current_value,
intervals=options["scale"],
modifier=c_modifier,
octave=c_octave,
)
new_pitch = Pitch(
pitch_class=current.get_value(),
text=str(current.get_value()),
pitch_class=current_value,
text=str(current_value),
note=note,
freq=midi_to_freq(note),
octave=c_octave,
@ -359,57 +365,47 @@ class Sequence(Meta):
)
return new_pitch
def update_chord(current: Chord, options: dict) -> Chord:
"""Update chord based on options"""
pcs = current.pitch_classes
notes = [
pc.set_note(
note_from_pc(options["key"], pc.pitch_class, options["scale"])
)
for pc in pcs
]
current.set_notes(notes)
return current
def create_chord_from_roman(current: RomanNumeral, options: dict) -> Chord:
def _create_chord_from_roman(current: RomanNumeral, options: dict) -> Chord:
"""Create chord fom roman numeral"""
key = options["key"]
scale = options["scale"]
pitches = [midi_to_pitch_class(note, key, scale) for note in current.notes]
chord_notes = [
note_from_pc(
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,
pitch_class=pitch_dict["pitch_class"],
intervals=scale,
modifier=current.modifier if hasattr(current, "modifier") else 0,
)
for pitch in pitches
]
modifier=pitch_dict.get("modifier",0),
octave=pitch_dict.get("octave",0)
))
chord = Chord(
text="".join(pitches), pitch_classes=pitches, notes=chord_notes
text=pitch_text, pitch_classes=pitch_classes, notes=chord_notes, kwargs=options
)
return chord
def update_item(item, options):
def _update_item(item, options):
"""Update or create new pitch"""
if set(("key", "scale")) <= options.keys():
if isinstance(item,Pitch):
# TODO: Re-evaluation?
# item.check_note(options)
pass
item.update_options(options)
elif isinstance(item, (RandomPitch, RandomInteger)):
item = create_pitch(item, options)
item = _create_pitch(item, options)
elif isinstance(item, Chord):
item = update_chord(item, options)
item.update_notes(options)
elif isinstance(item, RomanNumeral):
item = create_chord_from_roman(item, options)
item.update_new(options)
item = _create_chord_from_roman(item, options)
return item
# 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)
yield from _resolve_item(item, options)
def filter(self, keep: tuple):
"""Filter out items from sequence.
@ -551,7 +547,7 @@ class RandomInteger(Item):
self.max = new_max
# pylint: disable=locally-disabled, unused-argument
def get_value(self):
def get_value(self, options: dict=None):
"""Evaluate the random value for the generator"""
return random.randint(self.min, self.max)

3083
ziffers/defaults.py
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17
ziffers/scale.py
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@ -77,9 +77,20 @@ def get_scale(name: str) -> list[int]:
Returns:
list: List of intervals in the scale
"""
scale = SCALES.get(name.lower().capitalize(), SCALES["Chromatic"])
return list(map(int, str(scale)))
scale = SCALES.get(name.lower().capitalize(), SCALES["Ionian"])
return scale
def get_scale_length(name: str) -> int:
"""Get length of the scale
Args:
name (str): Name of the scale
Returns:
int: Length of the scale
"""
scale = SCALES.get(name.lower().capitalize(), SCALES["Ionian"])
return len(scale)
# pylint: disable=locally-disabled, too-many-arguments
def note_from_pc(
@ -186,7 +197,7 @@ def midi_to_tpc(note: int, key: str | int):
_type_: Tonal Pitch Class value for the note
"""
if isinstance(key, str):
acc = accidentals_from_note_name(key)
acc = accidentals_from_note_name(key[0])
else:
acc = accidentals_from_midi_note(key)
return (note * 7 + 26 - (11 + acc)) % 12 + (11 + acc)