'''
Functions, parameters and local variables - part 2
Starter code for creating one function
'''


from codex import *
from time import sleep


def option_A():
    display.show("Hold Button A")
    sleep(1)
    pressed = buttons.is_pressed(BTN_A)
    if pressed:
        pixels.set(0, GREEN)
    else:
        pixels.set(0, RED)
    sleep(1)


def option_B():
    display.show("Hold Button B")
    sleep(1)
    pressed = buttons.is_pressed(BTN_B)
    if pressed:
        pixels.set(1, GREEN)
    else:
        pixels.set(1, RED)
    sleep(1)


def option_L():
    display.show("Hold Button L")
    sleep(1)
    pressed = buttons.is_pressed(BTN_L)
    if pressed:
        pixels.set(2, GREEN)
    else:
        pixels.set(2, RED)
    sleep(1)


def option_R():
    display.show("Hold Button R")
    sleep(1)
    pressed = buttons.is_pressed(BTN_R)
    if pressed:
        pixels.set(3, GREEN)
    else:
        pixels.set(3, RED)
    sleep(1)


def clear_pixels():
    pixels.set(0, BLACK)
    pixels.set(1, BLACK)
    pixels.set(2, BLACK)
    pixels.set(3, BLACK)
    sleep(1)


# Main Program
while True:
    option_A()
    option_B()
    option_L()
    option_R()
    clear_pixels()


    # TO DO kill switch


    if buttons.was_pressed(BTN_U):
        break