kopia lustrzana https://github.com/pimoroni/pimoroni-pico
98 wiersze
2.4 KiB
Python
98 wiersze
2.4 KiB
Python
import gc
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import time
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import random
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from galactic import GalacticUnicorn
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from picographics import PicoGraphics, DISPLAY_GALACTIC_UNICORN, PEN_P8
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from ulab import numpy
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"""
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A random, trippy effect.
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Experiment with the damping, number of spawns, intensity and offset 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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gu = GalacticUnicorn()
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gu.set_brightness(0.5)
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graphics = PicoGraphics(DISPLAY_GALACTIC_UNICORN, pen_type=PEN_P8)
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DAMPING_FACTOR = 0.95
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NUMBER_OF_DROPS = 5
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INTENSITY = 10
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OFFSET = 0.0 # Try 0.5
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# Fill palette with a rainbow sweep
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PALETTE_ENTRIES = 255
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for x in range(PALETTE_ENTRIES):
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_ = graphics.create_pen_hsv(float(x) / PALETTE_ENTRIES + OFFSET, 1.0, 1.0)
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def update():
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trippy[:] *= DAMPING_FACTOR
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# Spawn random drops
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for _ in range(NUMBER_OF_DROPS):
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x = random.randint(0, width - 1)
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y = random.randint(0, height - 1)
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trippy[y][x] = random.randint(0, INTENSITY)
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a = numpy.roll(trippy, 1, axis=0)
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b = numpy.roll(trippy, -1, axis=0)
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d = numpy.roll(trippy, 1, axis=1)
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e = numpy.roll(trippy, -1, axis=1)
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# Average over 5 adjacent pixels and apply damping
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trippy[:] += a + b + d + e
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trippy[:] /= 5.0
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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(trippy, 0, 1) * (PALETTE_ENTRIES - 1), dtype=numpy.uint8).tobytes()
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gu.update(graphics)
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width = GalacticUnicorn.WIDTH
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height = GalacticUnicorn.HEIGHT
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trippy = 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 gu.is_pressed(GalacticUnicorn.SWITCH_BRIGHTNESS_UP):
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gu.adjust_brightness(+0.01)
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if gu.is_pressed(GalacticUnicorn.SWITCH_BRIGHTNESS_DOWN):
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gu.adjust_brightness(-0.01)
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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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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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