import machine
import time
import random

# LED 腳位設定
led_pins = [2, 4, 5, 18, 19, 21, 22, 23]
leds = [machine.Pin(p, machine.Pin.OUT) for p in led_pins]

# 按鈕腳位設定為 12
button = machine.Pin(12, machine.Pin.IN, machine.Pin.PULL_UP)

def clear_leds():
    for led in leds: led.value(0)

def start_roulette():
    total_steps = 30 + random.randint(0, 40)
    delay = 0.05
    for i in range(total_steps):
        clear_leds()
        leds[i % 8].value(1)
        if i > (total_steps - 15):
            delay += 0.03
        time.sleep(delay)
    
    # 中獎閃爍
    winner = leds[(total_steps - 1) % 8]
    for _ in range(5):
        winner.toggle()
        time.sleep(0.1)
    winner.value(1)

clear_leds()
while True:
    if button.value() == 0: # 按下
        start_roulette()
        while button.value() == 0: time.sleep(0.01) # 等待放開
    time.sleep(0.05)