109 lines
3.3 KiB
Python
109 lines
3.3 KiB
Python
from smnp.error.runtime import RuntimeException
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from smnp.function.model import Function, CombinedFunction
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from smnp.function.signature import varargSignature
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from smnp.module.synth.lib.wave import play
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from smnp.type.model import Type
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from smnp.type.signature.matcher.list import listOf
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from smnp.type.signature.matcher.type import ofTypes, ofType
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DEFAULT_BPM = 120
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DEFAULT_OVERTONES = [0.4, 0.3, 0.1, 0.1, 0.1]
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DEFAULT_DECAY = 4
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def getBpm(config):
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key = Type.string("bpm")
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if key in config.value:
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bpm = config.value[key]
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if bpm.type != Type.INTEGER or bpm.value <= 0:
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raise RuntimeException("The 'bpm' property must be positive integer", None)
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return bpm.value
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return DEFAULT_BPM
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def getOvertones(config):
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key = Type.string("overtones")
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if key in config.value:
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overtones = config.value[key]
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rawOvertones = [overtone.value for overtone in overtones.value]
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if overtones.type != Type.LIST or not all(overtone.type in [Type.FLOAT, Type.INTEGER] for overtone in overtones.value):
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raise RuntimeException("The 'overtones' property must be list of floats", None)
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if len(rawOvertones) < 1:
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raise RuntimeException("The 'overtones' property must contain one overtone at least", None)
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if any(overtone < 0 for overtone in rawOvertones):
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raise RuntimeException("The 'overtones' property mustn't contain negative values", None)
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if sum(rawOvertones) > 1.0:
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raise RuntimeException("The 'overtones' property must contain overtones which sum is not greater than 1.0", None)
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return rawOvertones
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return DEFAULT_OVERTONES
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def getDecay(config):
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key = Type.string("decay")
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if key in config.value:
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decay = config.value[key]
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if not decay.type in [Type.INTEGER, Type.FLOAT] or decay.value < 0:
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raise RuntimeException("The 'decay' property must be non-negative integer or float", None)
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return decay.value
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return DEFAULT_DECAY
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class Config:
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def __init__(self, bpm, overtones, decay):
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self.bpm = bpm
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self.overtones = overtones
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self.decay = decay
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@staticmethod
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def default():
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return Config(DEFAULT_BPM, DEFAULT_OVERTONES, DEFAULT_DECAY)
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_signature1 = varargSignature(listOf(Type.NOTE, Type.INTEGER))
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def _function1(env, notes):
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rawNotes = [note.value for note in notes]
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play(rawNotes, Config.default())
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_signature2 = varargSignature(ofTypes(Type.NOTE, Type.INTEGER))
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def _function2(env, notes):
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play([ notes ], Config.default())
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_signature3 = varargSignature(listOf(Type.NOTE, Type.INTEGER), ofType(Type.MAP))
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def _function3(env, config, notes):
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rawNotes = [note.value for note in notes]
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bpm = getBpm(config)
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overtones = getOvertones(config)
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decay = getDecay(config)
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play(rawNotes, Config(bpm, overtones, decay))
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_signature4 = varargSignature(ofTypes(Type.NOTE, Type.INTEGER), ofType(Type.MAP))
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def _function4(env, config, notes):
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bpm = getBpm(config)
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overtones = getOvertones(config)
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decay = getDecay(config)
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play([ notes ], Config(bpm, overtones, decay))
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function = CombinedFunction(
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'synth',
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Function(_signature1, _function1),
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Function(_signature2, _function2),
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Function(_signature3, _function3),
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Function(_signature4, _function4),
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) |