def render(self, out):
# Spontaneous birth: Rare after startup
if (len(self._dragons) < self.parameter('pop-limit').get()
) and random.random() < self.parameter('birth-rate').get():
strand = random.randint(0, BufferUtils.num_strands - 1)
fixture = random.randint(
0,
BufferUtils.strand_num_fixtures(strand) - 1)
address = BufferUtils.logical_to_index((strand, fixture, 0))
if address not in [d.loc for d in self._dragons]:
self._dragons.add(_Dragon(self, address, 1,
self._current_time))
# Dragon life cycle
to_add = set()
to_remove = set()
population = len(self._dragons)
for dragon in self._dragons:
population += dragon.render(to_add, to_remove, population)
self._dragons = (self._dragons | to_add) - to_remove
# Draw tails
tails_to_remove = []
for loc, time, fader in self._tails:
if (self._current_time -
time) > self.parameter('tail-persist').get():
if (loc, time, fader) in self._tails:
tails_to_remove.append((loc, time, fader))
self.setPixelHLS(self._buffer, loc, (0, 0, 0))
else:
progress = (self._current_time -
time) / self.parameter('tail-persist').get()
self.setPixelHLS(self._buffer, loc,
fader.get_color(progress * self._fader_steps))
for tail in tails_to_remove:
self._tails.remove(tail)
np.copyto(out, self._buffer)
def draw(self, dt):
self._current_time += dt
self._mass_destruction_countdown -= dt
# Ensure that empty displays start up with some seeds
p_birth = (1.0 - self._spontaneous_birth_probability) if self._population > 5 else 0.5
# Spontaneous birth: Rare after startup
if (self._population < self._population_limit) and random.random() + self.parameter('audio-onset-birth-boost').get() > p_birth:
strand = random.randint(0, BufferUtils.num_strands - 1)
fixture = random.randint(0, BufferUtils.strand_num_fixtures(strand) - 1)
pixel = random.randint(0, BufferUtils.fixture_length(strand, fixture) - 1)
address = BufferUtils.logical_to_index((strand, fixture, pixel))
if address not in (self._growing + self._alive + self._dying + self._fading_out):
self._growing.append(address)
self._time[address] = self._current_time
self._population += 1
self._spread_boost *= self.parameter('audio-onset-spread-boost-echo').get()
if self._mixer.is_onset():
self._spread_boost += self.parameter('audio-onset-spread-boost').get()
# Color growth
for address in self._growing:
neighbors = self.scene().get_pixel_neighbors(address)
p, color = self._get_next_color(address, self._growth_time, self._current_time)
if p >= 1.0:
self._growing.remove(address)
self._alive.append(address)
self._time[address] = self._current_time
self.setPixelHLS(address, color)
# Spread
spread_rate = self._spread_rate + self._spread_boost
if (self._population < self._population_limit) and (random.random() < spread_rate * dt):
for spread in neighbors:
if spread not in (self._growing + self._alive + self._dying + self._fading_out):
self._growing.append(spread)
self._time[spread] = self._current_time
self._population += 1
# Lifetime
for address in self._alive:
neighbors = self.scene().get_pixel_neighbors(address)
live_neighbors = [i for i in neighbors if i in self._alive]
lt = self._life_time
if len(neighbors) < 2:
lt = self._isolated_life_time
if len(live_neighbors) < 3 and ((self._current_time - self._time[address]) / lt) >= 1.0:
self._alive.remove(address)
self._dying.append(address)
self._time[address] = self._current_time
self._population -= 1
self.setPixelHLS(address, self._alive_color)
# Spread
if (self._population < self._population_limit) and random.random() < self._birth_rate * dt:
for spread in neighbors:
if spread not in (self._growing + self._alive + self._dying + self._fading_out):
self._growing.append(spread)
self._time[spread] = self._current_time
self._population += 1
# Color decay
for address in self._dying:
p, color = self._get_next_color(address, self._death_time, self._current_time + self.parameter('audio-onset-death-boost').get())
if p >= 1.0:
self._dying.remove(address)
self._fading_out.append(address)
self._time[address] = self._current_time
self.setPixelHLS(address, color)
# Fade out
for address in self._fading_out:
p, color = self._get_next_color(address, self._fade_out_time, self._current_time + self.parameter('audio-onset-death-boost').get())
if p >= 1.0:
self._fading_out.remove(address)
self.setPixelHLS(address, color)
# Mass destruction
if (self._population == self._population_limit) or \
(self._population > self._mass_destruction_threshold and self._mass_destruction_countdown <= 0):
for i in self._alive:
if random.random() > 0.95:
self._alive.remove(i)
self._dying.append(i)
self._population -= 1
for i in self._growing:
if random.random() > 0.85:
self._growing.remove(i)
self._dying.append(i)
self._population -= 1
self._mass_destruction_countdown = self.parameter('mass-destruction-time').get()
def draw(self, dt):
self._current_time += dt
# Spontaneous birth: Rare after startup
if (len(self._dragons) < self.parameter('pop-limit').get()) and random.random() < self.parameter('birth-rate').get():
strand = random.randint(0, BufferUtils.num_strands - 1)
fixture = random.randint(0, BufferUtils.strand_num_fixtures(strand) - 1)
address = BufferUtils.logical_to_index((strand, fixture, 0))
if address not in [d.loc for d in self._dragons]:
self._dragons.append(self.Dragon(address, 1, self._current_time))
growth_rate = self.parameter('growth-rate').get()
# Dragon life cycle
for dragon in self._dragons:
# Fade in
if dragon.growing:
p = (self._current_time - dragon.lifetime) / self.parameter('growth-time').get()
if (p > 1):
p = 1.0
color = self._growth_fader.get_color(p * self._fader_steps)
if p >= 1.0:
dragon.growing = False
dragon.alive = True
dragon.lifetime = self._current_time
self.setPixelHLS(dragon.loc, color)
# Alive - can move or die
if dragon.alive:
dragon.growth += dt * growth_rate
for times in range(int(dragon.growth)):
s, f, p = BufferUtils.index_to_logical(dragon.loc)
self.setPixelHLS(dragon.loc, (0, 0, 0))
if random.random() < dragon.growth:
dragon.growth -= 1
# At a vertex: optionally spawn new dragons
if dragon.moving and (p == 0 or p == (self.scene().fixture(s, f).pixels - 1)):
neighbors = self.scene().get_pixel_neighbors(dragon.loc)
neighbors = [BufferUtils.index_to_logical(n) for n in neighbors]
random.shuffle(neighbors)
# Kill dragons that reach the end of a fixture
dragon.moving = False
if dragon in self._dragons:
self._dragons.remove(dragon)
# Iterate over candidate pixels that aren't on the current fixture
num_children = 0
for candidate in [n for n in neighbors if n[1] != f]:
child_index = BufferUtils.logical_to_index(candidate)
if num_children == 0:
# Spawn at least one new dragon to replace the old one. This first one skips the growth.
dir = 1 if candidate[2] == 0 else -1
child = self.Dragon(child_index, dir, self._current_time)
child.growing = False
child.alive = True
child.moving = False
self._dragons.append(child)
num_children += 1
elif (len(self._dragons) < self.parameter('pop-limit').get()):
# Randomly spawn new dragons
if random.random() < self.parameter('birth-rate').get():
dir = 1 if candidate[2] == 0 else -1
child = self.Dragon(child_index, dir, self._current_time)
child.moving = False
self._dragons.append(child)
num_children += 1
break;
else:
# Move dragons along the fixture
self._tails.append((dragon.loc, self._current_time, self._tail_fader))
new_address = BufferUtils.logical_to_index((s, f, p + dragon.dir))
dragon.loc = new_address
dragon.moving = True
self.setPixelHLS(new_address, self._alive_color)
# Kill dragons that run into each other
if dragon in self._dragons:
colliding = [d for d in self._dragons if d != dragon and d.loc == dragon.loc]
if len(colliding) > 0:
#print "collision between", dragon, "and", colliding[0]
self._dragons.remove(dragon)
self._dragons.remove(colliding[0])
self._tails.append((dragon.loc, self._current_time, self._explode_fader))
neighbors = self.scene().get_pixel_neighbors(dragon.loc)
for neighbor in neighbors:
self._tails.append((neighbor, self._current_time, self._explode_fader))
break
# Draw tails
for loc, time, fader in self._tails:
if (self._current_time - time) > self.parameter('tail-persist').get():
if (loc, time, fader) in self._tails:
self._tails.remove((loc, time, fader))
self.setPixelHLS(loc, (0, 0, 0))
else:
progress = (self._current_time - time) / self.parameter('tail-persist').get()
self.setPixelHLS(loc, fader.get_color(progress * self._fader_steps))
def draw(self, dt):
self._current_time += dt
self._mass_destruction_countdown -= dt
# Ensure that empty displays start up with some seeds
p_birth = (1.0 - self._spontaneous_birth_probability
) if self._population > 5 else 0.5
# Spontaneous birth: Rare after startup
if (self._population < self._population_limit) and random.random(
) + self.parameter('audio-onset-birth-boost').get() > p_birth:
strand = random.randint(0, BufferUtils.num_strands - 1)
fixture = random.randint(
0,
BufferUtils.strand_num_fixtures(strand) - 1)
pixel = random.randint(
0,
BufferUtils.fixture_length(strand, fixture) - 1)
address = BufferUtils.logical_to_index((strand, fixture, pixel))
if address not in (self._growing + self._alive + self._dying +
self._fading_out):
self._growing.append(address)
self._time[address] = self._current_time
self._population += 1
self._spread_boost *= self.parameter(
'audio-onset-spread-boost-echo').get()
if self._mixer.is_onset():
self._spread_boost += self.parameter(
'audio-onset-spread-boost').get()
# Color growth
for address in self._growing:
neighbors = self.scene().get_pixel_neighbors(address)
p, color = self._get_next_color(address, self._growth_time,
self._current_time)
if p >= 1.0:
self._growing.remove(address)
self._alive.append(address)
self._time[address] = self._current_time
self.setPixelHLS(address, color)
# Spread
spread_rate = self._spread_rate + self._spread_boost
if (self._population < self._population_limit) and (
random.random() < spread_rate * dt):
for spread in neighbors:
if spread not in (self._growing + self._alive +
self._dying + self._fading_out):
self._growing.append(spread)
self._time[spread] = self._current_time
self._population += 1
# Lifetime
for address in self._alive:
neighbors = self.scene().get_pixel_neighbors(address)
live_neighbors = [i for i in neighbors if i in self._alive]
lt = self._life_time
if len(neighbors) < 2:
lt = self._isolated_life_time
if len(live_neighbors) < 3 and (
(self._current_time - self._time[address]) / lt) >= 1.0:
self._alive.remove(address)
self._dying.append(address)
self._time[address] = self._current_time
self._population -= 1
self.setPixelHLS(address, self._alive_color)
# Spread
if (self._population < self._population_limit
) and random.random() < self._birth_rate * dt:
for spread in neighbors:
if spread not in (self._growing + self._alive +
self._dying + self._fading_out):
self._growing.append(spread)
self._time[spread] = self._current_time
self._population += 1
# Color decay
for address in self._dying:
p, color = self._get_next_color(
address, self._death_time, self._current_time +
self.parameter('audio-onset-death-boost').get())
if p >= 1.0:
self._dying.remove(address)
self._fading_out.append(address)
self._time[address] = self._current_time
self.setPixelHLS(address, color)
# Fade out
for address in self._fading_out:
p, color = self._get_next_color(
address, self._fade_out_time, self._current_time +
self.parameter('audio-onset-death-boost').get())
if p >= 1.0:
self._fading_out.remove(address)
self.setPixelHLS(address, color)
# Mass destruction
if (self._population == self._population_limit) or \
(self._population > self._mass_destruction_threshold and self._mass_destruction_countdown <= 0):
for i in self._alive:
if random.random() > 0.95:
self._alive.remove(i)
self._dying.append(i)
self._population -= 1
for i in self._growing:
if random.random() > 0.85:
self._growing.remove(i)
self._dying.append(i)
self._population -= 1
self._mass_destruction_countdown = self.parameter(
'mass-destruction-time').get()
def draw(self, dt):
self._current_time += dt
# Spontaneous birth: Rare after startup
if (len(self._dragons) < self.parameter('pop-limit').get()) and random.random() < self.parameter('birth-rate').get():
strand = random.randint(0, BufferUtils.num_strands - 1)
fixture = random.randint(0, BufferUtils.strand_num_fixtures(strand) - 1)
address = BufferUtils.logical_to_index((strand, fixture, 0))
if address not in [d.loc for d in self._dragons]:
self._dragons.append(self.Dragon(address, 1, self._current_time))
growth_rate = self.parameter('growth-rate').get()
# Dragon life cycle
for dragon in self._dragons:
# Fade in
if dragon.growing:
p = (self._current_time - dragon.lifetime) / self.parameter('growth-time').get()
if (p > 1):
p = 1.0
color = self._growth_fader.get_color(p * self._fader_steps)
if p >= 1.0:
dragon.growing = False
dragon.alive = True
dragon.lifetime = self._current_time
self.setPixelHLS(dragon.loc, color)
# Alive - can move or die
if dragon.alive:
dragon.growth += dt * growth_rate
for times in range(int(dragon.growth)):
s, f, p = BufferUtils.index_to_logical(dragon.loc)
self.setPixelHLS(dragon.loc, (0, 0, 0))
if random.random() < dragon.growth:
dragon.growth -= 1
# At a vertex: optionally spawn new dragons
if dragon.moving and (p == 0 or p == (self.scene().fixture(s, f).pixels - 1)):
neighbors = self.scene().get_pixel_neighbors(dragon.loc)
neighbors = [BufferUtils.index_to_logical(n) for n in neighbors]
random.shuffle(neighbors)
# Kill dragons that reach the end of a fixture
dragon.moving = False
if dragon in self._dragons:
self._dragons.remove(dragon)
# Iterate over candidate pixels that aren't on the current fixture
num_children = 0
for candidate in [n for n in neighbors if n[1] != f]:
child_index = BufferUtils.logical_to_index(candidate)
if num_children == 0:
# Spawn at least one new dragon to replace the old one. This first one skips the growth.
dir = 1 if candidate[2] == 0 else -1
child = self.Dragon(child_index, dir, self._current_time)
child.growing = False
child.alive = True
child.moving = False
self._dragons.append(child)
num_children += 1
elif (len(self._dragons) < self.parameter('pop-limit').get()):
# Randomly spawn new dragons
if random.random() < self.parameter('birth-rate').get():
dir = 1 if candidate[2] == 0 else -1
child = self.Dragon(child_index, dir, self._current_time)
child.moving = False
self._dragons.append(child)
num_children += 1
break;
else:
# Move dragons along the fixture
self._tails.append((dragon.loc, self._current_time, self._tail_fader))
new_address = BufferUtils.logical_to_index((s, f, p + dragon.dir))
dragon.loc = new_address
dragon.moving = True
self.setPixelHLS(new_address, self._alive_color)
# Kill dragons that run into each other
if dragon in self._dragons:
colliding = [d for d in self._dragons if d != dragon and d.loc == dragon.loc]
if len(colliding) > 0:
#print "collision between", dragon, "and", colliding[0]
self._dragons.remove(dragon)
self._dragons.remove(colliding[0])
self._tails.append((dragon.loc, self._current_time, self._explode_fader))
neighbors = self.scene().get_pixel_neighbors(dragon.loc)
for neighbor in neighbors:
self._tails.append((neighbor, self._current_time, self._explode_fader))
break
# Draw tails
for loc, time, fader in self._tails:
if (self._current_time - time) > self.parameter('tail-persist').get():
if (loc, time, fader) in self._tails:
self._tails.remove((loc, time, fader))
self.setPixelHLS(loc, (0, 0, 0))
else:
progress = (self._current_time - time) / self.parameter('tail-persist').get()
self.setPixelHLS(loc, fader.get_color(progress * self._fader_steps))
