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import random
import math
import Config
from Util.CSoundNote import CSoundNote
from Generation.GenerationConstants import GenerationConstants
from GenRythm import GenRythm
def generator( instrument, nbeats, regularity, reverbSend ):
makeRythm = GenRythm()
noteDuration = GenerationConstants.DOUBLE_TICK_DUR / 2
trackId = 5
pan = 0.5
attack = 0.005
decay = 0.095
filterType = 0
filterCutoff = 1000
tied = False
mode = 'mini'
def makePitchSequence(length, drumPitch):
pitchSequence = []
for i in range(length):
pitchSequence.append(drumPitch[ random.randint( 0, ( len( drumPitch ) - 1 ) ) ] )
return pitchSequence
def makeGainSequence( onsetList ):
gainSequence = []
for onset in onsetList:
if onset == 0:
gain = random.uniform(GenerationConstants.GAIN_MID_MAX_BOUNDARY, GenerationConstants.GAIN_MAX_BOUNDARY)
elif ( onset % Config.TICKS_PER_BEAT) == 0:
gain = random.uniform(GenerationConstants.GAIN_MID_MIN_BOUNDARY, GenerationConstants.GAIN_MID_MAX_BOUNDARY)
else:
gain = random.uniform(GenerationConstants.GAIN_MIN_BOUNDARY, GenerationConstants.GAIN_MID_MIN_BOUNDARY)
gainSequence.append(gain*2)
return gainSequence
def pageGenerate( regularity, drumPitch ):
barLength = Config.TICKS_PER_BEAT * nbeats
if Config.INSTRUMENTS[instrument].kit != None:
currentInstrument = Config.INSTRUMENTS[instrument].kit[drumPitch[0]].name
rythmSequence = makeRythm.drumRythmSequence(currentInstrument, nbeats, regularity)
pitchSequence = makePitchSequence(len(rythmSequence), drumPitch )
gainSequence = makeGainSequence(rythmSequence)
trackNotes = []
for i in range(len(rythmSequence)):
trackNotes.append( CSoundNote( rythmSequence[i], pitchSequence[i], gainSequence[i],
pan, noteDuration, trackId,
Config.INSTRUMENTS[instrument].instrumentId, attack, decay, reverbSend, filterType, filterCutoff, tied, mode ) )
return trackNotes
##################################################################################
# begin generate()
if regularity > 0.75:
streamOfPitch = GenerationConstants.DRUM_COMPLEXITY1
elif regularity > 0.5:
streamOfPitch = GenerationConstants.DRUM_COMPLEXITY2
elif regularity > 0.25:
streamOfPitch = GenerationConstants.DRUM_COMPLEXITY3
else:
streamOfPitch = GenerationConstants.DRUM_COMPLEXITY4
trackNotes = []
for drumPitch in streamOfPitch:
trackNotes.append(pageGenerate( regularity, drumPitch ))
return trackNotes
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