import curses
import random

# Initialize the game interface
screen = curses.initscr()
curses.curs_set(0)
screen_height, screen_width = screen.getmaxyx()

# Initialize the game board
game_board = [[' ' for x in range(screen_width)] for y in range(screen_height)]
snake = [(screen_height // 2, screen_width // 2)]
food = (random.randint(1, screen_height - 2), random.randint(1, screen_width - 2))

# Define the game loop
while True:
    # Handle user input
    key = screen.getch()
    if key == curses.KEY_UP:
        snake.insert(0, (snake[0][0] - 1, snake[0][1]))
    elif key == curses.KEY_DOWN:
        snake.insert(0, (snake[0][0] + 1, snake[0][1]))
    elif key == curses.KEY_LEFT:
        snake.insert(0, (snake[0][0], snake[0][1] - 1))
    elif key == curses.KEY_RIGHT:
        snake.insert(0, (snake[0][0], snake[0][1] + 1))

    # Update the game state
    if snake[0] == food:
        food = (random.randint(1, screen_height - 2), random.randint(1, screen_width - 2))
    else:
        snake.pop()

    # Check for collisions
    if (snake[0][0] == 0 or snake[0][0] == screen_height - 1 or
            snake[0][1] == 0 or snake[0][1] == screen_width - 1 or
            snake[0] in snake[1:]):
        curses.endwin()
        quit()

    # Redraw the game board
    screen.clear()
    for y in range(screen_height):
        for x in range(screen_width):
            if (y, x) in snake:
                screen.addch(y, x, 'O')
            elif (y, x) == food:
                screen.addch(y, x, 'X')
            else:
                screen.addch(y, x, game_board[y][x])
    screen.refresh()
    curses.napms(100)

# Clean up the game interface
curses.endwin()