kopia lustrzana https://github.com/pimoroni/pimoroni-pico
72 wiersze
1.4 KiB
Python
72 wiersze
1.4 KiB
Python
import time
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import math
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from st7789 import ST7789
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WIDTH, HEIGHT = 240, 240
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display = ST7789(WIDTH, HEIGHT, round=True)
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display.set_backlight(1.0)
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RADIUS = WIDTH // 2
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def hsv_to_rgb(h, s, v):
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if s == 0.0:
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return v, v, v
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i = int(h * 6.0) # XXX assume int() truncates!
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f = (h * 6.0) - i
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p = v * (1.0 - s)
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q = v * (1.0 - s * f)
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t = v * (1.0 - s * (1.0 - f))
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i = i % 6
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if i == 0:
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return v, t, p
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if i == 1:
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return q, v, p
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if i == 2:
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return p, v, t
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if i == 3:
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return p, q, v
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if i == 4:
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return t, p, v
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if i == 5:
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return v, p, q
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t = 0
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while True:
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display.set_pen(0, 0, 0)
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display.clear()
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angle = t % (math.pi * 2)
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prev_x = RADIUS
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prev_y = RADIUS
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steps = 30.0
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angle_step = 0.5
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for step in range(int(steps)):
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angle += angle_step
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distance = RADIUS / steps * step
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distance += step * 0.2
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r, g, b = [int(c * 255) for c in hsv_to_rgb((t / 10.0) + distance / 120.0, 1.0, 1.0)]
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x = RADIUS + int(distance * math.cos(angle))
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y = RADIUS + int(distance * math.sin(angle))
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radius = ((math.sin(t + angle) + 1) / 2.0) * 10
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display.set_pen(r, g, b)
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display.circle(int(x), int(y), int(radius))
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prev_x = x
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prev_y = y
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display.update()
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time.sleep(0.02)
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t += 0.02
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