'''
Python Lists #2
'''
from botcore import *
from time import sleep
import random

beeps = [400, 500, 600, 700, 800, 900, 1000, 1100, 1200]
patterns = [0b10101010, 0b01010101, 0b00111100, 
           0b00100100, 0b01000010, 0b10000001]

# Access element in list by index (n_guests)
def count_guests():
    n_guests = 0
    while True:
        if buttons.was_pressed(0):
            freq = beeps[n_guests]
            spkr.pitch(freq)
            sleep(0.1)
            spkr.off()
            buttons.was_pressed(0)
            leds.ls_num(n_guests, True)
            n_guests = n_guests + 1
            if n_guests == 5:
                break

# Access element randomly using a while loop
def random_beeps_while():
    count = 0
    num_beeps = random.randrange(3, 10)
    while count < num_beeps:
        freq = random.choice(beeps)
        spkr.pitch(freq)
        sleep(0.3)
        spkr.off()
        count = count + 1

# Access element randomly using a for loop
def random_beeps_for():
    num_beeps = random.randrange(3, 10)
    for c in range(num_beeps):
        freq = random.choice(beeps)
        spkr.pitch(freq)
        sleep(0.3)
        spkr.off()

# traverse a single list
def traverse_loop_beeps():
    for sound in beeps:
        spkr.pitch(sound)
        sleep(0.3)
        spkr.off()

# traverse a single list
def traverse_loop_patterns():
    for lights in patterns:
        leds.user(lights)
        sleep(0.3)

# traverse two lists - one time
def traverse_lists():
    for index in range(len(patterns)):
        freq = beeps[index]
        lights = patterns[index]
        leds.user(lights)
        spkr.pitch(freq)
        sleep(0.3)
        spkr.off()

# traverse two lists - multiple times
def multiple_traverse_lists():
    for index in range(15):
        freq = beeps[index % len(beeps)]
        lights = patterns[index % len(patterns)]
        leds.user(lights)
        spkr.pitch(freq)
        sleep(0.3)
        spkr.off()

# -- Main Program --
multiple_traverse_lists()