forked from ervanalb/beat-off
/
beat.py
executable file
·456 lines (408 loc) · 12.3 KB
/
beat.py
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#!/usr/bin/python
import pygame
from recorder import Recorder
from timebase import TimeBase
from seq import Sequencer
from bespeckle import OutputAdapter
from devices import SingleBespeckleDevice,FakeSingleBespeckleDevice
from pattern import Pattern
from effect import Effect
import graphics
import time
import numpy
import scipy.signal
import collections
import sys
class Beat:
KEY_TAP=pygame.K_SPACE
KEY_PHASE=pygame.K_RETURN
KEY_RESET=pygame.K_ESCAPE
EFFECT_HISTORY_LENGTH=2
KEYBOARD={
pygame.K_q:(0,0),
pygame.K_w:(1,0),
pygame.K_e:(2,0),
pygame.K_r:(3,0),
pygame.K_t:(4,0),
pygame.K_y:(5,0),
pygame.K_u:(6,0),
pygame.K_i:(7,0),
pygame.K_a:(0,1),
pygame.K_s:(1,1),
pygame.K_d:(2,1),
pygame.K_f:(3,1),
pygame.K_g:(4,1),
pygame.K_h:(5,1),
pygame.K_j:(6,1),
pygame.K_k:(7,1),
pygame.K_z:(0,2),
pygame.K_x:(1,2),
pygame.K_c:(2,2),
pygame.K_v:(3,2),
pygame.K_b:(4,2),
pygame.K_n:(5,2),
pygame.K_m:(6,2),
pygame.K_COMMA:(7,2),
}
FUNCTION_KEYS={
pygame.K_F1:1,
pygame.K_F2:2,
pygame.K_F3:3,
pygame.K_F4:4,
pygame.K_F5:5,
pygame.K_F6:6,
pygame.K_F7:7,
pygame.K_F8:8,
pygame.K_F9:9,
pygame.K_F10:10,
pygame.K_F11:11,
pygame.K_F12:12,
}
PATTERN_KEYS={
pygame.K_1:1,
pygame.K_2:2,
pygame.K_3:3,
pygame.K_4:4,
pygame.K_5:5,
pygame.K_6:6,
pygame.K_7:7,
pygame.K_8:8,
pygame.K_9:9,
pygame.K_0:0,
}
KB_REMAP={
pygame.K_RIGHTBRACKET:(0,1),
pygame.K_QUOTE:(1,1),
pygame.K_SLASH:(2,1),
pygame.K_LEFTBRACKET:(0,-1),
pygame.K_SEMICOLON:(1,-1),
pygame.K_PERIOD:(2,-1),
}
COLORS=[
(255,255,255), # white
(255,0,0), # red
(255,20,0), # orange
(255,80,0), # yellow
(50,100,0), # green
(0,30,80), # blue
(255,0,50), # purple
(0,0,0), # black
]
EFFECT_NAMES=[
'on',
'strobe',
'sweep',
'rev sweep',
'fast sweep',
'fast rev sweep',
'pulse',
'rev pulse',
'fast pulse',
'fast rev pulse',
'fade in',
'fade out',
'fast fade in',
'fast fade out',
'rainbow!',
]
def __init__(self):
pygame.init()
self.size=1024,480
self.screen=pygame.display.set_mode(self.size)
self.bg=0,0,0
self.fg=255,255,255
self.audio_color=0,0,255
self.first_click=0
self.last_click=0
self.clicks=0
self.last_tick=0
self.effects={}
self.function=1
self.shift=False
self.forever=False
self.forever_patterns={}
self.forever_fn={}
self.last_stop=0
self.recording=False
self.recorded={}
self.coarse_grain=1
self.fine_grain=4
self.saved_patterns={}
self.rec_pat=None
self.kb_map=[0,1,2]
self.last_effect=collections.deque()
self.r=Recorder()
self.tb=TimeBase()
self.tb.register_tickfn(self.tick)
if len(sys.argv)>=2 and sys.argv[1]=='fake':
b=[FakeSingleBespeckleDevice('/dev/ttyUSB0',115200)]
else:
b = []
for i in range(10):
try:
b.append(SingleBespeckleDevice('/dev/ttyUSB%d' % i, 3000000))
if len(b) >= 4:
break
except:
pass
self.oa=OutputAdapter(b,self.tb)
self.oa.add_reset()
self.seq=Sequencer(self.tb,self.oa)
self.oa.start()
self.r.start()
self.tb.start()
self.seq.start()
while True:
quit=False
for event in pygame.event.get():
if event.type==pygame.QUIT: quit=True
if event.type==pygame.KEYDOWN:
if event.key==self.KEY_TAP:
self.tap()
elif event.key==self.KEY_PHASE:
self.phase()
elif event.key==pygame.K_UP:
self.tempo_adjust(1.)
elif event.key==pygame.K_DOWN:
self.tempo_adjust(-1.)
elif event.key in self.KEYBOARD:
self.effect(self.KEYBOARD[event.key])
elif event.key==pygame.K_TAB:
self.start_recording()
elif event.key in self.PATTERN_KEYS:
k=self.PATTERN_KEYS[event.key]
if self.rec_pat is not None:
self.save_pattern(k)
else:
p=self.pattern_map(k)
if self.forever:
if k in self.forever_patterns:
self.remove_pattern(self.forever_patterns[k])
self.forever_patterns.pop(k)
elif p is not None:
self.forever_patterns[k]=self.add_pattern(p,self.shift,self.forever)
elif p is not None:
self.add_pattern(p,self.shift,self.forever)
elif event.key in self.FUNCTION_KEYS:
k=self.FUNCTION_KEYS[event.key]
p=self.function_map(k)
if self.forever:
if k in self.forever_fn:
self.remove_pattern(self.forever_fn[k])
self.forever_fn.pop(k)
elif p is not None:
self.forever_fn[k]=self.add_pattern(p,self.shift,self.forever)
elif p is not None:
self.add_pattern(p,self.shift,self.forever)
elif event.key in self.KB_REMAP:
self.kb_remap(*self.KB_REMAP[event.key])
elif event.key==pygame.K_LSHIFT:
self.shift=True
elif event.key==pygame.K_LCTRL:
self.forever=True
elif event.key==self.KEY_RESET:
self.oa.add_reset()
elif event.type==pygame.KEYUP:
if event.key in self.KEYBOARD:
self.effect_release(self.KEYBOARD[event.key])
elif event.key==pygame.K_LSHIFT:
self.shift=False
elif event.key==pygame.K_LCTRL:
self.forever=False
elif event.key==pygame.K_TAB:
self.stop_recording()
if quit:
break
font = pygame.font.Font(None, 36)
text = font.render("TEMPO:"+str(self.tb.get_tempo())+" BPM", 1, self.fg)
if self.recording:
msg='recording'
elif self.rec_pat is not None:
msg='press a key to store'
else:
msg='not recording'
text2 = font.render(msg,1,self.fg)
audio=graphics.audio_widget(self.r,self.tb)
pattern_timeline=graphics.pattern_timeline_widget(self.tb,self.seq,float(self.r.CHUNK)/self.r.RATE)
self.screen.fill(self.bg)
self.screen.blit(text, (0,0))
self.screen.blit(text2, (0,30))
self.screen.blit(audio, (0,60))
self.screen.blit(pattern_timeline, (audio.get_width(),60))
kb=[font.render(self.EFFECT_NAMES[self.kb_map[row]],1,self.fg) for row in range(3)]
self.screen.blit(kb[0], (0,200))
self.screen.blit(kb[1], (0,230))
self.screen.blit(kb[2], (0,260))
pygame.display.flip()
time.sleep(0)
self.seq.stop()
self.r.stop()
self.tb.stop()
self.oa.stop()
self.seq.join()
self.r.join()
self.tb.join()
self.oa.join()
def tick(self,num):
self.r.set_beatline()
self.last_tick=time.time()
self.oa.add_tick()
def tempo_adjust(self,amt):
tempo=round(self.tb.get_tempo(),0)
tempo+=amt
self.tb.set_tempo(tempo)
def tap(self):
t=time.time()
if t-self.last_click>2:
self.first_click=t
self.clicks=0
else:
self.clicks+=1
self.tb.sync_period((t-self.first_click)/self.clicks)
self.last_click=t
def phase(self):
t=time.time()
self.tb.sync_phase(t)
def kb_remap(self,remap_row,increment):
self.kb_map[remap_row]=(self.kb_map[remap_row]+increment)%len(self.EFFECT_NAMES)
def effect_map(self,(c,r)):
if c>=len(self.COLORS):
return None
en=self.EFFECT_NAMES[self.kb_map[r]]
opacity=0xFF
if self.shift:
opacity/=2
color=self.COLORS[c]+(opacity,)
if en=='on':
return Effect(0x10,color,render=lambda *x:graphics.full_color(graphics.strip2screen(color),*x))
if en=='strobe':
return Effect(0x40,color+(0x00,0x10),False,render=lambda *x:graphics.strobe(graphics.strip2screen(color),*x))
if en=='sweep':
return Effect(0x41,color+(0x02,0x00),render=lambda *x:graphics.full_color(graphics.strip2screen(color),*x))
if en=='rev sweep':
return Effect(0x41,color+(0x82,0x00),render=lambda *x:graphics.full_color(graphics.strip2screen(color),*x))
if en=='pulse':
return Effect(0x42,color+(0x04,0x00),False,render=lambda *x:graphics.strobe(graphics.strip2screen(color),*x))
if en=='rev pulse':
return Effect(0x42,color+(0x84,0x00),False,render=lambda *x:graphics.strobe(graphics.strip2screen(color),*x))
if en=='fast sweep':
return Effect(0x41,color+(0x01,0x00),render=lambda *x:graphics.full_color(graphics.strip2screen(color),*x))
if en=='fast rev sweep':
return Effect(0x41,color+(0x81,0x00),render=lambda *x:graphics.full_color(graphics.strip2screen(color),*x))
if en=='fast pulse':
return Effect(0x42,color+(0x02,0x00),False,render=lambda *x:graphics.strobe(graphics.strip2screen(color),*x))
if en=='fast rev pulse':
return Effect(0x42,color+(0x082,0x00),False,render=lambda *x:graphics.strobe(graphics.strip2screen(color),*x))
if en=='fade in':
return Effect(0x43,color+(0x02,0x00),render=lambda *x:graphics.full_color(graphics.strip2screen(color),*x))
if en=='fade out':
return Effect(0x43,color+(0x82,0x00),render=lambda *x:graphics.full_color(graphics.strip2screen(color),*x))
if en=='fast fade in':
return Effect(0x43,color+(0x01,0x00),render=lambda *x:graphics.full_color(graphics.strip2screen(color),*x))
if en=='fast fade out':
return Effect(0x43,color+(0x81,0x00),render=lambda *x:graphics.full_color(graphics.strip2screen(color),*x))
if en=='rainbow!':
return Effect(0x03,(0x00, 0x04, 0x04),render=lambda *x:graphics.full_color(graphics.strip2screen(color),*x))
return None
def pattern_map(self,p_num):
p=None
if p_num in self.saved_patterns:
p=self.saved_patterns[p_num]
if p is None:
return None
p_name='{0}'.format(p_num)
return p+(p_name,)
def function_map(self,f_num):
if len(self.last_effect)<self.EFFECT_HISTORY_LENGTH:
return None
e1=self.last_effect[1]
e2=self.last_effect[0]
p=None
# p = (length_of_period, [(timestamp, duration, effect), ...])
if f_num==1: # 4 Quarter Notes
p=(4,[(0,1,e1),(1,1,e2),(2,1,e1),(3,1,e2)])
elif f_num==2: # 2 Half Notes
p=(4,[(0,2,e1),(2,2,e2)])
elif f_num==3: # 2 Whole Notes
p=(8,[(0,4,e1),(4,4,e2)])
elif f_num==4: # 8 Eighth Notes
p=(4,[(0,0.5,e1),(0.5,0.5,e2),(1,0.5,e1),(1.5,0.5,e2),(2,0.5,e1),(2.5,0.5,e2),(3,0.5,e1),(3.5,0.5,e2)])
elif f_num==5: # 4 Quarter Notes overlapping
p=(4,[(0,2,e1),(1,2,e2),(2,2,e1),(3,2,e2)])
elif f_num==6: # 2 Half Notes overlapping
p=(4,[(0,4,e1),(2,4,e2)])
elif f_num==7: # 2 Whole notes overlapping
p=(8,[(0,8,e1),(4,8,e2)])
elif f_num==8: # 8 Eighth Notes very overlapping
p=(4,[(0,2,e1),(0.5,2,e2),(1,2,e1),(1.5,2,e2),(2,2,e1),(2.5,2,e2),(3,2,e1),(3.5,2,e2)])
elif f_num==9: # 8 Eighth Notes very overlapping
p=(4,[(0,2,e1),(0.25,2,e2),(0.5,2,e1),(0.75,2,e2),(1,2,e1),(1.25,2,e2),(1.5,2,e1),(1.75,2,e2),
(2,2,e1),(2.25,2,e2),(2.5,2,e1),(2.75,2,e2),(3,2,e1),(3.25,2,e2),(3.5,2,e1),(3.75,2,e2) ])
if p is None:
return None
p_name='F{0}'.format(f_num)
return p+(p_name,)
def save_pattern(self,p_num):
self.saved_patterns[p_num]=self.rec_pat
self.rec_pat=None
def effect(self,coord):
eff=self.effect_map(coord)
self.last_effect.appendleft(eff)
if len(self.last_effect)>self.EFFECT_HISTORY_LENGTH:
self.last_effect.pop()
if eff is None:
return
if self.recording:
cur_time=self.align(self.tb.get_tick(),self.fine_grain)
#cur_time=self.tb.get_tick()
start=cur_time-self.recording_start
self.recorded[coord]=(start,eff)
if eff.persistent:
self.effects[coord]=self.oa.add_persistent_effect(eff.cmd,eff.data)
else:
self.oa.add_transient_effect(eff.cmd,eff.data)
self.effects[coord]=None
def effect_release(self,coord):
if coord in self.effects:
if self.effects[coord] is not None:
self.oa.remove_effect(self.effects[coord])
self.effects.pop(coord)
if coord in self.recorded:
cur_time=self.align(self.tb.get_tick(),self.fine_grain)
#cur_time=self.tb.get_tick()
stop=cur_time-self.recording_start
start,eff=self.recorded[coord]
self.record.append((start,stop-start,eff))
self.recorded.pop(coord)
def align(self,loc,grain):
return round(loc*grain,0)/grain
def start_recording(self):
self.record=[]
self.recording=True
self.recorded={}
self.recording_start=self.align(self.tb.get_tick(),self.coarse_grain)
for coord in self.effects:
eff=self.effect_map(coord)
self.recorded[coord]=(0,eff)
def stop_recording(self):
stop=round(self.tb.get_tick()*self.coarse_grain,0)/self.coarse_grain
duration=stop-self.recording_start
for start,eff in self.recorded.values():
self.record.append((start,stop-start,eff))
self.recorded={}
self.recording=False
self.rec_pat=(duration,self.record)
self.record=[]
print self.rec_pat
def remove_pattern(self,p_id):
self.seq.remove_pattern(p_id)
def add_pattern(self,p,stack,forever):
start=round(self.tb.get_tick()*self.coarse_grain,0)/self.coarse_grain
if stack and self.last_stop>start:
start=self.last_stop
l=p[0]
if forever:
return self.seq.add_pattern(Pattern(self.oa,*p),start,None)
self.last_stop=start+l
return self.seq.add_pattern(Pattern(self.oa,*p),start,start+l)
Beat()