from machine import Pin, ADC
import lcd
import random
from time import sleep

lcd_rs = Pin(12, Pin.OUT)
lcd_e = Pin(11, Pin.OUT)
lcd_d4 = Pin(10, Pin.OUT)
lcd_d5 = Pin(9, Pin.OUT)
lcd_d6 = Pin(8, Pin.OUT)
lcd_d7 = Pin(7, Pin.OUT)

lcd.init(lcd_rs, lcd_e, lcd_d4, lcd_d5, lcd_d6, lcd_d7)
lcd.load_custom_chars()

button = Pin(16, Pin.IN)
pot = ADC(0)

player_row = 1
player_col = 1

obstacle_row = random.randint(0, 1)
obstacle_col = 15

previous_button = 0
cooldown = 0

while True:
    current_button = button.value()

    pot_value = pot.read_u16()
    cooldown_limit = 1 + (pot_value // 200)

    if cooldown > 0:
        cooldown -= 1

    if current_button == 1 and previous_button == 0 and cooldown == 0:
        player_row = 0
        cooldown = cooldown_limit

    if cooldown == 0:
        player_row = 1

    previous_button = current_button

    lcd.clear()
    lcd.setCursor(player_col, player_row)
    lcd.print(chr(0))
    lcd.setCursor(obstacle_col, obstacle_row)
    lcd.print(chr(1))

    if obstacle_col == player_col and obstacle_row == player_row:
        lcd.clear()
        lcd.setCursor(0, 0)
        lcd.print("Game over")
        lcd.setCursor(0, 1)
        lcd.print("Restarting...")
        sleep(2)

        obstacle_col = 15
        obstacle_row = random.randint(0, 1)
        player_row = 1
        cooldown = 0

    obstacle_col -= 1
    if obstacle_col < 0:
        obstacle_col = 15
        obstacle_row = random.randint(0, 1)

    sleep(0.1)