'''
Mission 7 -- Billboard
Through objective 6
'''

from codex import *
from time import sleep

my_list = [pics.HAPPY, pics.SAD, pics.SURPRISED, 
          pics.ASLEEP, pics.HEART, pics.TIARA, pics.TSHIRT,
          ]
choice = 0
LAST_INDEX = len(my_list) - 1

while True:
    my_image = my_list[choice]
    display.show(my_image)

    if buttons.was_pressed(BTN_R):
        choice = choice + 1
        if choice > LAST_INDEX:
            choice = 0

    if buttons.was_pressed(BTN_L):
        choice = choice - 1
        if choice < 0:
            choice = LAST_INDEX