Troubleshooting • Led Strip Script help

Code:

import boardfrom rpi_ws281x import Adafruit_NeoPixel, Colorimport neopixelimport digitalioimport timepixel_pin = board.D10num_pixels = 40  # Number of LEDs in your stripbutton_left = digitalio.DigitalInOut(board.D3)  # Button now on pin 3button_right = digitalio.DigitalInOut(board.D5)  # Button now on pin 5button_left.switch_to_input(pull=digitalio.Pull.UP)button_right.switch_to_input(pull=digitalio.Pull.UP)# Create NeoPixel objectpixels = neopixel.NeoPixel(pixel_pin, num_pixels, brightness=0.1, auto_write=Fa$# Initial player positionplayer_pos = 0# Set all LEDs to black initiallypixels.fill((0, 0, 0))  # New call added herepixels.show()  # Update display to reflect the initial black statedef move_pixel(direction):    global player_pos    player_pos = (player_pos + direction) % num_pixels  # Wrap around at the en$    pixels.fill((0, 0, 0))  # Clear strip    pixels[player_pos] = (255, 255, 255)  # Set player pixel   #pixels.showdef apply_physics():    global player_pos    velocity = 2  # Adjust for desired sliding speed    if player_pos > 0 and pixels[player_pos - 1] == (0, 0, 0):        player_pos -= velocity    if player_pos < num_pixels - 1 and pixels[player_pos + 1] == (0, 0, 0):        player_pos += velocitywhile True:    if not button_left.value:        move_pixel(-1)  # Move left        time.sleep(0.05)  # Delay for smoother movement    elif not button_right.value:        move_pixel(1)  # Move right        time.sleep(0.05)    else:        apply_physics()  # Apply sliding physics    pixels.show()  # Update display