'''
Mission 7 - Personal Billboard
Mild Remix 1A
This project adds a button press to end the program
by breaking out of the loop.
'''
from codex import *

choice = 0
my_list = [GREEN, "Ahoy", pics.HAPPY, 
            pics.SAD, RED, pics.SURPRISED,
            "Having a great day", 
            pics.ASLEEP, PINK, pics.TIARA,
            "Meh", pics.TARGET]
LAST_INDEX = len(my_list) - 1

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

    # scroll forward and backward
    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 the loop and quit
    if buttons.was_pressed(BTN_D):
        break