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=570, height=570)
screen.bgcolor("black")
screen.tracer(0)
screen.title("My snake game")

food = Food()
snake = Snake()
scoreboard = Scoreboard()

screen.update()
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()

    if snake.head.distance(food) < 15:
        food.refresh()
        snake.extend()
        scoreboard.increase_score()

    if snake.head.xcor() >= 680 or snake.head.xcor() <= -680 or snake.head.ycor() >= 350 or snake.head.ycor() <= -350:
        scoreboard.reset_game()
        snake.reset()

    for snake_piece in snake.snake_pieces[1:]:
        if snake.head.distance(snake_piece) < 10:
            scoreboard.reset_game()
            snake.reset()

screen.exitonclick()