import time, machine
from machine import Pin
from time import sleep, 
time.sleep(0.1) # Wait for USB to become ready

print("Hello, Pi Pico!")

ledr = Pin(0, Pin.OUT);
ledy = Pin(9, Pin.OUT);
ledg = Pin(13, Pin.OUT);
button = Pin(2, Pin.IN);
# button.value() = 0;

while True:
    # led1.toggle()
    # sleep(0.5)
    # led1.toggle()
    # sleep(0.5)
    oldval = 0
    if ledr.value()+ledy.value()+ledg.value() == 0 and button.value() == 1:
        ledr.value(button.value())
        oldval = 1
        # sleep(0.5)
    elif ledr.value() == 1 and button.value() == 1: 
        ledr.toggle()
        ledy.toggle()
        oldval = button.value()

    elif ledy.value() == 1 and button.value() == 1: 
        ledy.toggle()
        ledg.toggle()
        oldval = button.value()

    elif ledg.value() == 1 and button.value() == 1: 
        ledg.toggle()
        ledr.toggle()
        oldval = button.value()
    
    sleep(0.1)