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"""Colour picker to show on neopixels""" |
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___name___ = "ColourPicker" |
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___title___ = "Colour Picker" |
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___license___ = "MIT" |
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___dependencies___ = ["ugfx_helper"] |
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___categories___ = ["LEDs"] |
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import ugfx, ugfx_helper, app |
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from tilda import Buttons |
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from time import sleep |
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from machine import Neopix |
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def getColour(intensity, angle): |
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intensity *= 2 |
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if angle < (1 / 6): |
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return (intensity, intensity * (angle * 6), 0) if intensity < 1 else (1, (angle * 6) + ((1 - (angle * 6)) * (intensity - 1)), (intensity - 1)) |
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elif angle < (2 / 6): |
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return (intensity * (2 - (6 * angle)), intensity, 0) if intensity < 1 else ((2 - (6 * angle)) + ((1 - (2 - (6 * angle))) * (intensity - 1)), 1, (intensity - 1)) |
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elif angle < (3 / 6): |
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return (0, intensity, intensity * ((6 * angle) - 2)) if intensity < 1 else ((intensity - 1), 1, ((6 * angle) - 2) + ((1 - ((6 * angle) - 2)) * (intensity - 1))) |
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elif angle < (4 / 6): |
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return (0, intensity * (4 - (6 * angle)), intensity) if intensity < 1 else ((intensity - 1), (4 - (6 * angle)) + ((1 - (4 - (6 * angle))) * (intensity - 1)), 1) |
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elif angle < (5 / 6): |
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return (intensity * ((6 * angle) - 4), 0, intensity) if intensity < 1 else (((6 * angle) - 4) + ((1 - ((6 * angle) - 4)) * (intensity - 1)), (intensity - 1), 1) |
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else: |
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return (intensity, 0, intensity * 6 * (1 - angle)) if intensity < 1 else (1, (intensity - 1), (6 * (1 - angle)) + ((1 - (6 * (1 - angle))) * (intensity - 1))) |
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ugfx_helper.init() |
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ugfx.clear() |
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maxHeight = ugfx.height() |
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n = Neopix() |
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# Draw colour swatch |
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for x in range(ugfx.width()): |
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intensity = x / ugfx.width() |
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for y in range(maxHeight): |
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(r, g, b) = getColour(intensity, y / ugfx.height()) |
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colour = (int(31 * r) << 11) + (int(63 * g) << 5) + int(31 * b) |
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ugfx.area(x, y, 1, 1, colour) |
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i = 0 |
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j = 0 |
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ugfx.area((i - 1) if i > 0 else 0, (j - 1) if j > 0 else 0, 3 if (i > 0 and i < (ugfx.width() - 1)) else 2, 3 if (j > 0 and j < (maxHeight - 1)) else 2, ugfx.WHITE) |
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while (not Buttons.is_pressed(Buttons.BTN_A)) and (not Buttons.is_pressed(Buttons.BTN_B)) and (not Buttons.is_pressed(Buttons.BTN_Menu)): |
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changed = False |
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oldI = i |
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oldJ = j |
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if Buttons.is_pressed(Buttons.JOY_Right) and (i < (ugfx.width() - 1)): |
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i += 1 |
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changed = True |
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elif Buttons.is_pressed(Buttons.JOY_Left) and (i > 0): |
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i -= 1 |
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changed = True |
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if Buttons.is_pressed(Buttons.JOY_Down) and (j < (maxHeight - 1)): |
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j += 1 |
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changed = True |
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elif Buttons.is_pressed(Buttons.JOY_Up) and (j > 0): |
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j -= 1 |
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changed = True |
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if changed: |
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(r, g, b) = getColour(i / ugfx.width(), j / ugfx.height()) |
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colour = (int(255 * r) << 16) + (int(255 * g) << 8) + int(255 * b) |
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n.display([colour, colour]) |
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for xx in range((oldI - 1) if (oldI > 0) else 0, 1 + ((oldI + 1) if (oldI < (ugfx.width() - 2)) else (ugfx.width() - 1))): |
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intensity = xx / ugfx.width() |
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for yy in range((oldJ - 1) if (oldJ > 0) else 0, 1 + ((oldJ + 1) if (oldJ < (maxHeight - 2)) else (maxHeight - 1))): |
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(rr, gg, bb) = getColour(intensity, yy / ugfx.height()) |
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colour = (int(31 * rr) << 11) + (int(63 * gg) << 5) + int(31 * bb) |
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ugfx.area(xx, yy, 1, 1, colour) |
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ugfx.area((i - 1) if i > 0 else 0, (j - 1) if j > 0 else 0, 3 if (i > 0 and i < (ugfx.width() - 1)) else 2, 3 if (j > 0 and j < (maxHeight - 1)) else 2, ugfx.WHITE) |
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sleep(0.05) |
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ugfx.clear() |
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app.restart_to_default() |
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