4. Screen Class challenge

Design a screen class that keeps track of the brightness of all pixels on the 5 by 5 LED display of the microbit.

Initialize the class instance with all pixels at 0 brightness.

Create a method to reset all pixels to 0 brightness.

Create a method to set all pixels to a given brightness.

Create a method to set all pixels to a random brightness.

Create a method to show the screen using the pixel brightness values.

Create a method to set a pixel brightness like the standard set_pixel method: .set_pixel(x, y, value).

Create a method to get a pixel brightness like the standard set_pixel method: .get_pixel(x, y, value).

Create a method to set the pixel brightness for a row.

Create a method to set the pixel brightness for a column.

Create a method to set the pixel brightness for a column.

Create a method to set the pixel brightness for a random pixel.

Create a method to set a random pixel brightness for a given pixel.

Create a method to set a random pixel brightness for a random pixel.

Create a method that returns the number of pixels with brightness greater than 0.

Create a method that returns the number of pixels with brightness greater than a specified value.

Create a method that returns the number of pixels with brightness of a specified value.

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Test the code below and see if it meets the challenges above.

from microbit import *
import random

class Screen:
    def __init__(self):
        self.pixels = [[0 for _ in range(5)] for _ in range(5)]

    def reset(self):
        self.pixels = [[0 for _ in range(5)] for _ in range(5)]

    def set_all(self, brightness):
        self.pixels = [[brightness for _ in range(5)] for _ in range(5)]

    def set_random(self):
        self.pixels = [[random.randint(0, 9) for _ in range(5)] for _ in range(5)]

    def show(self):
        for x in range(5):
            for y in range(5):
                display.set_pixel(x, y, self.pixels[x][y])

    def set_pixel(self, x, y, value):
        self.pixels[x][y] = value

    def get_pixel(self, x, y):
        return self.pixels[x][y]

    def set_row(self, row, value):
        self.pixels[row] = [value for _ in range(5)]

    def set_column(self, column, value):
        for i in range(5):
            self.pixels[i][column] = value

    def set_random_pixel(self, value):
        x, y = random.randint(0, 4), random.randint(0, 4)
        self.pixels[x][y] = value

    def set_random_value(self, x, y):
        self.pixels[x][y] = random.randint(0, 9)

    def set_random_pixel_random_value(self):
        x, y = random.randint(0, 4), random.randint(0, 4)
        self.pixels[x][y] = random.randint(0, 9)

    def count_pixels_greater_than_zero(self):
        return sum(value > 0 for row in self.pixels for value in row)

    def count_pixels_greater_than(self, value):
        return sum(pixel > value for row in self.pixels for pixel in row)

    def count_pixels_of_value(self, value):
        return sum(pixel == value for row in self.pixels for pixel in row)