Days21. 뱀게임6 - 꼬리를 물면 GAME OVER

* main.py

from turtle import Screen
from snake import Snake
from food import Food
from scoreboard import Scoreboard
import time
screen = Screen()
screen.setup(width=600, height=600)
screen.bgcolor("black")
screen.tracer(0)
screen.title("kio's snake game - ver.20220223(the first one)")
snake = Snake()
food = Food()
scoreboard = Scoreboard()
screen.listen()
screen.onkey(snake.up, "Up")
screen.onkey(snake.down, "Down")
screen.onkey(snake.left, "Left")
screen.onkey(snake.right, "Right")
game_is_on = True
while game_is_on:
    screen.update()
    time.sleep(0.1)
    snake.move()
    # Detect collision with food.
    if snake.head.distance(food) < 20:
        food.refresh()
        snake.extend()
        scoreboard.clear()
        scoreboard.score()
    # Detect collision with wall.
    if snake.head.xcor() < -290 or snake.head.xcor() > 290 or snake.head.ycor() < -290 or snake.head.ycor() > 290:
        scoreboard.game_over()
        game_is_on = False
#꼬리를 물면 GAMEOVER start
    for tut in snake.turtles:
        if tut == snake.head:
            pass
        elif snake.head.distance(tut) < 10:
            game_is_on = False
            scoreboard.game_over()
#꼬리를 물면 GAMEOVER end
screen.exitonclick()