'''
Mission 4 Obj. 1-7
with functions
'''
from botcore import *
from time import sleep

delay = 0.1
n_led = 0
n_guests = 0

def flash_led(n_led):
    leds.user_num(n_led, True)
    sleep(delay)
    leds.user_num(n_led, False)

def count_guests(n_guests):
    spkr.pitch(440)
    sleep(0.1)
    spkr.off()
    buttons.was_pressed(0)
    leds.ls_num(n_guests, True)

while True:
    flash_led(n_led)
    n_led = n_led + 1
    if n_led == 8:
        n_led = 0

    if buttons.was_pressed(0):
        count_guests(n_guests)
        n_guests = n_guests + 1
        if n_guests == 5:
            break