from machine import Pin
from utime import sleep

button_1 = Pin('GP14', Pin.IN, Pin.PULL_DOWN)
button_2 = Pin('GP15', Pin.IN, Pin.PULL_DOWN)
button_3 = Pin('GP13', Pin.IN, Pin.PULL_DOWN)
led_1 = Pin('GP17', Pin.OUT)
led_2 = Pin('GP16', Pin.OUT)
led_3 = Pin('GP18', Pin.OUT)

def handler_1(x):
    led_1.high()
    return

def handler_2(x):
    led_2.high()
    return

def handler_3(x):
    led_3.high()
    return

button_1.irq(handler_1, Pin.IRQ_RISING)
button_2.irq(handler_2,Pin.IRQ_RISING)
button_3.irq(handler_3,Pin.IRQ_RISING)

led_1.low()
led_2.low()
led_3.low()

try:
    play_again = True
    while play_again==True:
        sleep(1)
        button_1_state = button_1.value()
        button_2_state = button_2.value()
        button_3_state = button_3.value()
        d = 4*button_3_state + 2*button_1_state + 1*button_2_state

        print('The state of button 1 is: ', button_1_state)
        print('The state of button 2 is: ', button_2_state)
        print('The state of button 3 is: ', button_3_state)
        print('3-bit binary number: ')
        print('button 1: ', bin(button_1_state))
        print('button 2: ', bin(button_2_state))
        print('button 3: ', bin(button_3_state))
        print('Integer Equivalent: ', d)
        print('\n')
        play_again_str = input('Play again? Y or N: ')
        if play_again_str == 'N'or play_again_str == 'n':
            play_again = False
            print('Thanks for playing! Goodbye!')
        led_1.low()
        led_2.low()
        led_3.low()

except KeyboardInterrupt:
    print('\n')
    print('You sunk my battle ship!')

finally:
    led_1.low()
    led_2.low()
    led_3.low()