'''
Practice PT #5 - part 1
Using a list of lists
'''
from botcore import *
from time import sleep

motors.enable(True)
delay = 2.0

square_speeds = [[30, 30, delay], [20, -20, 0.72], 
                 [30, 30, delay], [20, -20, 0.72],
                 [30, 30, delay], [20, -20, 0.72], 
                 [30, 30, delay], [20, -20, 0.72]]

def move(the_list):
    for item in the_list:
        left_speed = item[0]
        right_speed = item[1]
        the_delay = item[2]
        motors.run(LEFT, left_speed)
        motors.run(RIGHT, right_speed)
        sleep(the_delay)

# countdown
def countdown():
    leds.user_num(4, True)
    sleep(1.0)
    leds.user_num(3, True)
    sleep(1.0)

# -- Main Program --
countdown()
while True:
    if buttons.was_pressed(0):
        leds.user_num(0, True)
        motors.enable(True)
        move(square_speeds)
        motors.enable(False)