kopia lustrzana https://github.com/pimoroni/pimoroni-pico
116 wiersze
2.8 KiB
Python
116 wiersze
2.8 KiB
Python
import gc
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import time
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import random
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from cosmic import CosmicUnicorn, Channel
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from picographics import PicoGraphics, DISPLAY_COSMIC_UNICORN, PEN_P8
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from ulab import numpy
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"""
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A random, computer effect.
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Experiment with the damping, number of spawns and intensity to change the effect.
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"""
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# MAXIMUM OVERKILL
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# machine.freq(250_000_000)
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DAMPING_FACTOR = 0.95
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NUMBER_OF_LIGHTS = 10
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INTENSITY = 20
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volume = 0.5
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cu = CosmicUnicorn()
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cu.set_brightness(0.5)
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graphics = PicoGraphics(DISPLAY_COSMIC_UNICORN, pen_type=PEN_P8)
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boopety_beepety = cu.synth_channel(0)
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boopety_beepety.configure(
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waveforms=Channel.SQUARE | Channel.SINE,
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attack=0.1,
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decay=0.1,
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sustain=0.0,
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release=0.5,
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volume=volume
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)
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cu.play_synth()
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# Fill palette with a yellow
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r, g, b = (230, 150, 0)
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PALETTE_ENTRIES = 255
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for x in range(PALETTE_ENTRIES):
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_ = graphics.create_pen(r * x // PALETTE_ENTRIES, g * x // PALETTE_ENTRIES, b)
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def update():
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computer[:] *= DAMPING_FACTOR
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# Spawn random drops
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for _ in range(NUMBER_OF_LIGHTS):
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x = random.randint(0, width - 1)
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y = random.randint(0, height - 1)
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computer[y][x] = random.randint(0, INTENSITY)
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def draw():
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# Copy the effect to the framebuffer
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memoryview(graphics)[:] = numpy.ndarray(numpy.clip(computer, 0, 1) * (PALETTE_ENTRIES - 1), dtype=numpy.uint8).tobytes()
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cu.update(graphics)
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width = CosmicUnicorn.WIDTH
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height = CosmicUnicorn.HEIGHT
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computer = numpy.zeros((height, width))
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t_count = 0
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t_total = 0
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while True:
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if cu.is_pressed(CosmicUnicorn.SWITCH_BRIGHTNESS_UP):
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cu.adjust_brightness(+0.01)
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if cu.is_pressed(CosmicUnicorn.SWITCH_BRIGHTNESS_DOWN):
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cu.adjust_brightness(-0.01)
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if cu.is_pressed(CosmicUnicorn.SWITCH_VOLUME_DOWN):
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volume -= 0.1
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volume = max(0.0, volume)
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boopety_beepety.volume(volume)
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if cu.is_pressed(CosmicUnicorn.SWITCH_VOLUME_UP):
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volume += 0.1
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volume = min(1.0, volume)
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boopety_beepety.volume(volume)
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tstart = time.ticks_ms()
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gc.collect()
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update()
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draw()
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tfinish = time.ticks_ms()
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# Play random notes between 100 and 880Hz for a computery effect
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boopety_beepety.frequency(random.randint(100, 880))
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boopety_beepety.trigger_attack()
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total = tfinish - tstart
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t_total += total
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t_count += 1
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if t_count == 60:
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per_frame_avg = t_total / t_count
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print(f"60 frames in {t_total}ms, avg {per_frame_avg:.02f}ms per frame, {1000/per_frame_avg:.02f} FPS")
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t_count = 0
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t_total = 0
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# pause for a moment (important or the USB serial device will fail)
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# try to pace at 60fps or 30fps
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if total > 1000 / 30:
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time.sleep(0.0001)
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elif total > 1000 / 60:
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t = 1000 / 30 - total
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time.sleep(t / 1000)
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else:
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t = 1000 / 60 - total
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time.sleep(t / 1000)
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