Adafruit CircuitPython 8.0.3 on 2023-02-23; Adafruit Grand Central M4 Express with samd51p20

adafruit-circuitpython-grandcentral_m4_express-en_GB-8.0.3.uf2
update-bootloader-grandcentral_m4-v3.15.0.uf2

import displayio
import rgbmatrix
import board
import framebufferio
from adafruit_bitmap_font import bitmap_font
from adafruit_display_text.label import Label
import digitalio
import busio
import sdcardio
import storage
import adafruit_debouncer

displayio.release_displays()

matrix = rgbmatrix.RGBMatrix(
    width=64,
    height=32,
    bit_depth=4,
    rgb_pins=[board.D8, board.D9, board.D10, board.D11, board.D12, board.D13],
    addr_pins=[board.D4, board.D6, board.D3, board.D5],
    clock_pin=board.D1,
    latch_pin=board.D2,
    output_enable_pin=board.D0
)
display = framebufferio.FramebufferDisplay(matrix)

font = bitmap_font.load_font("/fonts/test.pcf")

mg = displayio.Group()
mg_a = Label(font, text="A.A.A.A", color=0x00FF00, x=15, y=6)
mg_h = Label(font, text="H.H.H.H", color=0x00FF00, x=14, y=17)
mg_b = Label(font, text="B.B.B.B", color=0x00FF00, x=15, y=28)
mg.append(mg_a)
mg.append(mg_h)
mg.append(mg_b)

class HiscoreController:
    def __init__(self):
        spi = busio.SPI(board.SD_SCK, board.SD_MOSI, board.SD_MISO)
        sdcard = sdcardio.SDCard(spi, board.SD_CS)
        vfs = storage.VfsFat(sdcard)
        storage.mount(vfs, "/")

    def hiscore(self, value=-1):
        if value >= 0:
            try:
                with open("/hiscore.txt", "w") as hiscore_file:
                    if value > 9999:
                        hiscore_file.write(str(value - 10000))
                    else:
                        hiscore_file.write(str(value))
            except OSError:
                pass
        else:
            if "hiscore.txt" in os.listdir("/"):
                try:
                    with open("/hiscore.txt", "r") as hiscore_file:
                        score = hiscore_file.read()
                        return score
                except OSError:
                    pass

class ButtonController:
    def __init__(self, btns_and_names):
        self.buttons = {}

        for name, btn in btns_and_names.items():
            button_pin = digitalio.DigitalInOut(btn["obj"])
            button_pin.switch_to_input(pull=digitalio.Pull.UP)
            self.buttons[name] = adafruit_debouncer.Debouncer(button_pin)

    def is_pressed(self, btn_name):
        return self.buttons[btn_name].fell

    def reset(self):
        for btn in self.buttons.values():
            btn.update()

    def update(self):
        for btn in self.buttons.values():
            btn.update()

hiscore_ctrl = HiscoreController()

buttons = ButtonController(
    btns_and_names = {
        "reset": {"num": 1, "obj": board.D27}
    }
)

def menu(screen_state):
    reset = False

    display.show(mg)

    buttons.reset()

    while screen_state == menu:
        buttons.update()

        if buttons.is_pressed("reset"):
            hiscore_ctrl.hiscore(value=0)
            reset = True

screens = {
    menu: menu
}

screen_state = menu

while True:
    current_screen = screens[screen_state]
    screen_state = current_screen(screen_state)