from machine import Pin, ADC, I2C
import time
from pico_i2c_lcd import I2cLcd

# ---------------- LCD SETUP ----------------
I2C_ADDR = 0x27   # change to 0x3F if needed
i2c = I2C(0, sda=Pin(8), scl=Pin(1), freq=400000)
lcd = I2cLcd(i2c, I2C_ADDR, 2, 16)

# ---------------- JOYSTICK SETUP ----------------
x_axis = ADC(26)   # VRx
y_axis = ADC(28)   # VRy
button = Pin(0, Pin.IN, Pin.PULL_UP)

# ---------------- GAME VARIABLES ----------------
player_x = 0
player_y = 0

target_x = 15
target_y = 1

# ---------------- DRAW FUNCTION ----------------
def draw():
    lcd.clear()
    for row in range(2):
        lcd.move_to(0, row)
        for col in range(16):
            if row == player_y and col == player_x:
                lcd.putchar('*')
            elif row == target_y and col == target_x:
                lcd.putchar('T')
            else:
                lcd.putchar(' ')

# ---------------- JOYSTICK FUNCTIONS ----------------
def get_direction():
    x = x_axis.read_u16()
    y = y_axis.read_u16()

    if x < 20000:
        return "LEFT"
    elif x > 45000:
        return "RIGHT"
    elif y < 20000:
        return "UP"
    elif y > 45000:
        return "DOWN"
    else:
        return "CENTER"

def wait_for_release():
    # wait until joystick returns to center
    while True:
        x = x_axis.read_u16()
        y = y_axis.read_u16()

        if 30000 < x < 35000 and 30000 < y < 35000:
            break
        time.sleep(0.05)

# ---------------- START SCREEN ----------------
lcd.clear()
lcd.putstr("Reach Target!")
time.sleep(2)

# ---------------- GAME LOOP ----------------
while True:
    direction = get_direction()

    if direction != "CENTER":
        if direction == "LEFT" and player_x > 0:
            player_x -= 1

        elif direction == "RIGHT" and player_x < 15:
            player_x += 1

        elif direction == "UP" and player_y > 0:
            player_y -= 1

        elif direction == "DOWN" and player_y < 1:
            player_y += 1

        draw()

        # IMPORTANT: prevents multiple moves (fixes your issue)
        wait_for_release()

    # WIN CONDITION
    if player_x == target_x and player_y == target_y:
        lcd.clear()
        lcd.putstr(" YOU WON! ")
        break

    time.sleep(0.05)