'''
Mission 7 - Personal Billboard
Medium Remix 2C
This project uses a second list for audio MP3 files to play while 
the image is display. I chose short clips, so a sleep is included.
If students choose the long songs, you have to wait until
the song finishes, so no delay is needed.
- It includes a button to break the loop and quit -
'''
from codex import *
from time import sleep

choice = 0
my_list1 = [pics.HAPPY, pics.PLANE, pics.TSHIRT, 
            pics.TIARA, pics.HEART, pics.HOUSE]
my_list2 = ["sounds/up", "sounds/left", "sounds/right",
            "sounds/down", "sounds/on", "sounds/off"]
LAST_INDEX = len(my_list1) - 1

# MAIN PROGRAM
while True:
    my_image = my_list1[choice]
    my_sound = my_list2[choice]
    display.show(my_image)
    audio.mp3(my_sound)
    # included so audio clip isn't continuous
    sleep(1)

    # scroll backward and forward
    if buttons.was_pressed(BTN_L):
        choice = choice - 1
        if choice < 0:
            choice = LAST_INDEX

    if buttons.was_pressed(BTN_R):
        choice = choice + 1
        if choice > LAST_INDEX:
            choice = 0
   
    # break out of loop and quit
    if buttons.was_pressed(BTN_D):
        break