class SoundBlockHandler(object):
"""
Handles user interaction and drawing of graphics before generating a SoundBlock.
Also stores and updates all currently active SoundBlocks.
"""
def __init__(self, norm, sandbox, mixer, client, client_id):
self.norm = norm
self.module_name = 'SoundBlock'
self.sandbox = sandbox
self.mixer = mixer
self.tempo_map = SimpleTempoMap(bpm=60)
self.sched = AudioScheduler(self.tempo_map)
self.synth = Synth("data/FluidR3_GM.sf2")
self.sched.set_generator(self.synth)
self.mixer.add(self.sched)
self.cmd = {}
self.client = client
self.cid = client_id
self.instruments = {
'piano': 1,
'violin': 41,
'trumpet': 57,
'ocarina': 80,
'choir': 53
}
self.inst_list = ['piano', 'violin', 'trumpet', 'ocarina', 'choir']
self.drumkit = {
'snare': 38,
'crash': 49,
'bass': 35,
'hihat': 46,
'triangle': 81
}
self.drum_list = ['snare', 'crash', 'bass', 'hihat', 'triangle']
self.channel = 0
self.drum_channel = len(self.inst_list)
# set up the correct sound (program: bank and preset)
# each instrument is on a different channel
for index, inst in enumerate(self.inst_list):
self.synth.program(index, 0, self.instruments[inst])
for index, drum in enumerate(self.drum_list):
self.synth.program(index + len(self.instruments), 128, 0)
# many variables here are dicts because a user's module handler needs to keep track of
# not just its own variables, but other users' variables as well! so we use dictionaries
# with client ids as the keys.
self.hold_point = {}
self.hold_shape = {}
# this variable is needed for when a user clicks on a soundblock in a touch_down event,
# so that the corresponding touch_up event is skipped
self.skip = {}
self.color_dict = {
'red': (201 / 255, 108 / 255, 130 / 255),
'orange': (214 / 255, 152 / 255, 142 / 255),
'yellow': (238 / 255, 234 / 255, 202 / 255),
'green': (170 / 255, 220 / 255, 206 / 255),
'teal': (159 / 255, 187 / 255, 208 / 255),
'blue': (44 / 255, 85 / 255, 123 / 255),
'turquoise': (50 / 255, 147 / 255, 140 / 255),
'indigo': (46 / 255, 40 / 255, 90 / 255),
'violet': (147 / 255, 127 / 255, 159 / 255),
'pink': (199 / 255, 150 / 255, 170 / 255),
'peach': (238 / 255, 142 / 255, 154 / 255),
'magenta': (172 / 255, 69 / 255, 133 / 255),
'grey': (140 / 255, 143 / 255, 148 / 255),
'white': (239 / 255, 226 / 255, 222 / 255)
}
self.default_color = self.color_dict['violet']
self.default_pitch = 60
self.default_timbre = 'sine'
self.default_instrument = 'piano'
self.default_drum = 'snare'
self.color = {}
self.pitch = {}
self.timbre = {}
self.instrument = {}
self.drum = {}
self.display = False
self.blocks = AnimGroup()
self.sandbox.add(self.blocks)
self.gui = BlockGUI(self.norm,
pos=self.norm.nt((50, 100)),
is_drum=False,
pitch_callback=self.update_pitch,
instrument_callback=self.update_instrument,
drum_callback=self.update_drum)
self.delete_mode = {}
def on_touch_down(self, cid, pos):
if cid == self.cid:
self.gui.on_touch_down(pos)
if not self.sandbox.in_bounds(pos):
return
# when a block is clicked, flash and play a sound
for block in self.blocks.objects:
if in_bounds(pos, block.pos, block.size):
if self.delete_mode[cid]:
self.blocks.objects.remove(block)
self.blocks.remove(block)
return
block.flash()
self.skip[cid] = True
return # don't start drawing a SoundBlock
if self.delete_mode[cid]:
return
self.hold_point[cid] = pos
self.hold_shape[cid] = Rectangle(pos=pos, size=(0, 0))
self.sandbox.add(Color(1, 1, 1))
self.sandbox.add(self.hold_shape[cid])
def on_touch_move(self, cid, pos):
if not self.sandbox.in_bounds(pos):
return
#determine which direction rectangle is being created in
hold_point = self.hold_point[cid]
size = self.calculate_size(hold_point, pos)
bottom_left = pos
#moving northeast
if pos[0] > hold_point[0] and pos[1] > hold_point[1]:
bottom_left = hold_point
#moving southeast
elif pos[0] > hold_point[0] and pos[1] < hold_point[1]:
bottom_left = (hold_point[0], pos[1])
#moving southwest
elif pos[0] < hold_point[0] and pos[1] < hold_point[1]:
bottom_left = pos
#moving northwest
elif pos[0] < hold_point[0] and pos[1] > hold_point[1]:
bottom_left = (pos[0], hold_point[1])
self.hold_shape[cid].pos = bottom_left
self.hold_shape[cid].size = size
def on_touch_up(self, cid, pos):
if self.skip.get(cid):
self.skip[cid] = False
return
if self.delete_mode[cid]:
return
if self.hold_shape.get(cid) not in self.sandbox:
if not self.sandbox.in_bounds(pos):
return
bottom_left = self.hold_shape[cid].pos
size = self.hold_shape[cid].size
if size[0] <= 10 or size[1] <= 10:
self.sandbox.remove(self.hold_shape[cid])
return
self.sandbox.remove(self.hold_shape[cid])
pitch = self.pitch[cid]
color = self.color[cid]
instrument = self.instrument[cid]
self.channel = self.inst_list.index(instrument)
drum = self.drum[cid]
self.drum_channel = self.drum_list.index(drum) + len(self.inst_list)
if self.gui.is_drum:
block = SoundBlock(self.norm, self.sandbox, bottom_left, size,
self.drum_channel, self.drumkit[drum], color,
self, self.sound)
else:
block = SoundBlock(self.norm, self.sandbox, bottom_left, size,
self.channel, pitch, color, self, self.sound)
self.blocks.add(block)
def on_key_down(self, cid, key):
index = lookup(key, 'q2w3er5t6y7ui', range(13))
if index is not None:
if self.cid == cid:
self.gui.ps.select(index)
if key == '[':
if cid == self.cid:
self.gui.ps.left_press()
if key == ']':
if cid == self.cid:
self.gui.ps.right_press()
if key == 'v' and cid == self.cid:
self.delete_mode[cid] = not self.delete_mode[cid]
self.update_server_state(post=True)
if key == 'up':
if not self.gui.is_drum:
self.gui.switch_module()
if key == 'down':
if self.gui.is_drum:
self.gui.switch_module()
if self.gui.is_drum:
drum = lookup(key, 'asdfg',
['snare', 'crash', 'bass', 'hihat', 'triangle'])
if drum is not None:
self.drum[cid] = drum
if self.cid == cid:
self.drum_channel = self.drum_list.index(drum) + len(
self.inst_list)
self.gui.ds.select(drum)
else:
instrument = lookup(
key, 'asdfg',
['piano', 'violin', 'trumpet', 'ocarina', 'choir'])
if instrument is not None:
self.instrument[cid] = instrument
if self.cid == cid:
self.channel = self.inst_list.index(instrument)
self.gui.ints.select(
instrument) # have the GUI update as well
def display_controls(self):
info = 'delete mode: {}\n'.format(self.delete_mode[self.cid])
if self.gui.is_drum:
info += 'drum: {}\n'.format(self.drum_list[self.drum_channel -
len(self.inst_list)])
else:
info += 'instrument: {}\n'.format(self.inst_list[self.channel])
return info
def on_update(self):
self.blocks.on_update()
self.gui.on_update(Window.mouse_pos)
def update_server_state(self, post=False):
"""
Update server state. If post is True, relay this updated state to all clients.
"""
state = {
'color': self.color,
'pitch': self.pitch,
'timbre': self.timbre,
'instrument': self.instrument,
'drum': self.drum,
'delete_mode': self.delete_mode
}
data = {
'module': self.module_name,
'cid': self.cid,
'state': state,
'post': post
}
self.client.emit('update_state', data)
def update_client_state(self, cid, state):
"""
Update this handler's state.
"""
if cid != self.cid: # this client already updated its own state
self.color = state['color']
self.pitch = state['pitch']
self.timbre = state['timbre']
self.instrument = state['instrument']
self.drum = state['drum']
self.delete_mode = state['delete_mode']
def sync_state(self, state):
"""
Initial sync with the server's copy of module state.
We don't sync with hold_shape, hold_point, and hold_line because those objects are not
json-serializable and are short-term values anyway.
"""
self.color = state['color']
self.pitch = state['pitch']
self.timbre = state['timbre']
self.instrument = state['instrument']
self.drum = state['drum']
self.delete_mode = state['delete_mode']
# after initial sync, add default values for this client
self.color[self.cid] = self.default_color
self.pitch[self.cid] = self.default_pitch
self.timbre[self.cid] = self.default_timbre
self.instrument[self.cid] = self.default_instrument
self.drum[self.cid] = self.default_drum
self.delete_mode[self.cid] = False
self.skip[self.cid] = False
# now that default values are set, we can display this module's info
self.display = True
# update server with these default values
# post=True here because we want all other clients' states to update with this client's
# default values.
self.update_server_state(post=True)
def sound(self, channel, pitch):
"""
Play a sound with a given pitch on the given channel.
"""
if self.cmd.get((channel, pitch)):
self.sched.cancel(self.cmd[(channel, pitch)])
self.synth.noteon(channel, pitch, 100)
now = self.sched.get_tick()
self.cmd[(channel,
pitch)] = self.sched.post_at_tick(self._noteoff, now + 240,
(channel, pitch))
def update_pitch(self, color, pitch):
"""Update this client's color and pitch due to PitchSelect."""
self.color[self.cid] = self.color_dict[color]
self.pitch[self.cid] = pitch
self.update_server_state(post=True)
def update_instrument(self, instrument):
"""Update this client's instrument due to InstrumentSelect."""
self.instrument[self.cid] = instrument
self.channel = self.inst_list.index(instrument)
self.update_server_state(post=True)
def update_drum(self, drum):
self.drum[self.cid] = drum
self.drum_channel = self.drum_list.index(drum) + len(self.inst_list)
self.update_server_state(post=True)
def _noteoff(self, tick, args):
channel, pitch = args
self.synth.noteoff(channel, pitch)
def calculate_size(self, corner, pos):
x = abs(pos[0] - corner[0])
y = abs(pos[1] - corner[1])
return (x, y)
def calculate_center(self, corner, size):
c_x = corner[0] + (size[0] / 2)
c_y = corner[1] + (size[1] / 2)
return (c_x, c_y)
class TempoCursorHandler(object):
"""
Handles the TempoCursor GUI.
Also stores and updates all currently active TempoCursors.
"""
def __init__(self,
norm,
sandbox,
mixer,
client,
client_id,
block_handler,
tempo=60):
self.norm = norm
self.module_name = 'TempoCursor'
self.sandbox = sandbox
self.mixer = mixer
self.client = client
self.cid = client_id
self.block_handler = block_handler
self.tempo = tempo
self.clock = Clock()
self.tempo_map = SimpleTempoMap(bpm=self.tempo)
self.touch_points = {}
self.cursors = AnimGroup()
self.sandbox.add(self.cursors)
self.gui = CursorGUI(norm,
pos=self.norm.nt((20, 300)),
beat_callback=self.update_touch_points)
self.delete_mode = {}
def on_touch_down(self, cid, pos):
if cid == self.cid:
self.gui.on_touch_down(pos)
if not self.sandbox.in_bounds(pos):
return
for cursor in self.cursors.objects:
cursor_pos = (cursor.pos[0] - cursor.size[0] / 2,
cursor.pos[1] - cursor.size[1] / 2)
if in_bounds(pos, cursor_pos, cursor.size):
if self.delete_mode[cid]:
self.cursors.objects.remove(cursor)
self.cursors.remove(cursor)
return
if self.delete_mode[cid]:
return
touch_points = self.touch_points[cid]
if len(touch_points) == 0:
return
cursor = TempoCursor(self.norm, pos, self.tempo,
self.clock, self.tempo_map,
copy.deepcopy(touch_points), self.block_handler)
self.cursors.add(cursor)
def on_touch_move(self, cid, pos):
pass
def on_touch_up(self, cid, pos):
pass
def on_key_down(self, cid, key):
if key == 'p':
self.clock.toggle()
if key == 'v' and cid == self.cid:
self.delete_mode[cid] = not self.delete_mode[cid]
self.update_server_state(post=True)
if key == 'up':
self.tempo += 4
self.tempo_map.set_tempo(self.tempo)
self.update_server_state(post=True)
if key == 'down':
self.tempo -= 4
self.tempo_map.set_tempo(self.tempo)
self.update_server_state(post=True)
def on_update(self):
self.cursors.on_update()
def update_touch_points(self, touch_points):
self.touch_points[self.cid] = touch_points
self.update_server_state(post=True)
def display_controls(self):
cur_time = self.clock.get_time()
cur_tick = self.tempo_map.time_to_tick(cur_time)
info = 'delete mode: {}\n\n'.format(self.delete_mode[self.cid])
info += 'tempo: {}\n'.format(self.tempo)
return info
def update_server_state(self, post=False):
"""Update server state. If post is True, relay this updated state to all clients."""
state = {
'touch_points': self.touch_points,
'delete_mode': self.delete_mode,
'tempo': self.tempo
}
data = {
'module': self.module_name,
'cid': self.cid,
'state': state,
'post': post
}
self.client.emit('update_state', data)
def update_client_state(self, cid, state):
"""Update this handler's state."""
if cid != self.cid: # this client already updated its own state
self.touch_points = state['touch_points']
self.delete_mode = state['delete_mode']
self.tempo = state['tempo']
def sync_state(self, state):
"""
Initial sync with the server's copy of module state.
"""
self.touch_points = state['touch_points']
self.delete_mode = state['delete_mode']
self.tempo = state['tempo']
# after initial sync, add default values for this client
self.touch_points[self.cid] = []
self.delete_mode[self.cid] = False
# update server with these default values
# post=True here because we want all other clients' states to update with this client's
# default values.
self.update_server_state(post=True)