from machine import Pin, PWM
import time
import urandom

# Buttons
buttons = [
    Pin(16, Pin.IN, Pin.PULL_UP),
    Pin(17, Pin.IN, Pin.PULL_UP),
    Pin(18, Pin.IN, Pin.PULL_UP)
]

# Buzzer
buzzer = PWM(Pin(15))
buzzer.duty_u16(0)

tones = [600, 800, 1000]
sequence = []

def beep(freq, dur=0.25):
    buzzer.freq(freq)
    buzzer.duty_u16(30000)
    time.sleep(dur)
    buzzer.duty_u16(0)
    time.sleep(0.1)

print("Simon Says - Sound Edition")

while True:
    # Add new step
    sequence.append(urandom.randint(0, 2))

    # Play sequence
    for step in sequence:
        beep(tones[step])

    # Player input
    for step in sequence:
        while True:
            for i, btn in enumerate(buttons):
                if btn.value() == 0:
                    beep(tones[i], 0.15)
                    if i != step:
                        beep(200, 0.6)
                        print("Game Over! Score:", len(sequence)-1)
                        sequence = []
                    time.sleep(0.3)
                    break
            else:
                continue
            break
        if not sequence:
            break

    time.sleep(0.5)