'''
Mission 6: Heartbeat
Spicy Remix - 2nd option
-- One solution for making a turn signal.
   It keeps the delay options and adds signals.
-- Adds another if statement with a break (2A)
-- Adds avoing runtime error
'''
from codex import *
from time import sleep

delay = 1
signal = pics.ARROW_N

while True:
    # one turn signal
    display.show(signal)
    sleep(delay)
    display.fill(BLACK)
    sleep(delay)

    if buttons.was_pressed(BTN_A):
        delay = delay + 0.2

    if buttons.was_pressed(BTN_B):
        if delay > 0.2:
            delay = delay - 0.2

    if buttons.was_pressed(BTN_U):
        signal = pics.ARROW_N

    if buttons.was_pressed(BTN_L):
        signal = pics.ARROW_W

    if buttons.was_pressed(BTN_R):
        signal = pics.ARROW_

    if buttons.was_pressed(BTN_D):
        break