Snake Game

 import tkinter as tk

import random

# Game config

WIDTH = 500

HEIGHT = 500

SPEED = 100  # milliseconds between moves

SPACE_SIZE = 20

BODY_PARTS = 3

SNAKE_COLOR = "#00FF00"

FOOD_COLOR = "#FF0000"

BG_COLOR = "#000000"

class Snake:

    def __init__(self):

        self.body_size = BODY_PARTS

        self.coordinates = []

        self.squares = []

        for i in range(0, BODY_PARTS):

            self.coordinates.append([0, 0])

        for x, y in self.coordinates:

            square = canvas.create_rectangle(x, y, x + SPACE_SIZE, y + SPACE_SIZE, fill=SNAKE_COLOR, tag="snake")

            self.squares.append(square)

class Food:

    def __init__(self):

        x = random.randint(0, (WIDTH // SPACE_SIZE) - 1) * SPACE_SIZE

        y = random.randint(0, (HEIGHT // SPACE_SIZE) - 1) * SPACE_SIZE

        self.coordinates = [x, y]

        canvas.create_oval(x, y, x + SPACE_SIZE, y + SPACE_SIZE, fill=FOOD_COLOR, tag="food")

def next_turn(snake, food):

    x, y = snake.coordinates[0]

    if direction == "up":

        y -= SPACE_SIZE

    elif direction == "down":

        y += SPACE_SIZE

    elif direction == "left":

        x -= SPACE_SIZE

    elif direction == "right":

        x += SPACE_SIZE

    snake.coordinates.insert(0, [x, y])

    square = canvas.create_rectangle(x, y, x + SPACE_SIZE, y + SPACE_SIZE, fill=SNAKE_COLOR)

    snake.squares.insert(0, square)

    if x == food.coordinates[0] and y == food.coordinates[1]:

        global score

        score += 1

        label.config(text="Score: {}".format(score))

        canvas.delete("food")

        food = Food()

    else:

        del snake.coordinates[-1]

        canvas.delete(snake.squares[-1])

        del snake.squares[-1]

    if check_collisions(snake):

        game_over()

    else:

        window.after(SPEED, next_turn, snake, food)

def change_direction(new_direction):

    global direction

    if new_direction == "left" and direction != "right":

        direction = new_direction

    elif new_direction == "right" and direction != "left":

        direction = new_direction

    elif new_direction == "up" and direction != "down":

        direction = new_direction

    elif new_direction == "down" and direction != "up":

        direction = new_direction

def check_collisions(snake):

    x, y = snake.coordinates[0]

    if x < 0 or x >= WIDTH or y < 0 or y >= HEIGHT:

        return True

    for body_part in snake.coordinates[1:]:

        if x == body_part[0] and y == body_part[1]:

            return True

    return False

def game_over():

    canvas.delete(tk.ALL)

    canvas.create_text(WIDTH / 2, HEIGHT / 2, font=('Arial', 30), text="GAME OVER", fill="red", tag="gameover")

    canvas.create_text(WIDTH / 2, HEIGHT / 2 + 40, font=('Arial', 14), text="Press 'R' to Restart", fill="white")

def restart_game(event):

    global score, direction, snake, food

    canvas.delete(tk.ALL)

    score = 0

    label.config(text="Score: {}".format(score))

    direction = 'down'

    snake = Snake()

    food = Food()

    next_turn(snake, food)

# Setup

window = tk.Tk()

window.title("Snake Game")

window.resizable(False, False)

score = 0

direction = 'down'

label = tk.Label(window, text="Score: {}".format(score), font=('Arial', 20))

label.pack()

canvas = tk.Canvas(window, bg=BG_COLOR, height=HEIGHT, width=WIDTH)

canvas.pack()

window.update()

# Center window

window_width = window.winfo_width()

window_height = window.winfo_height()

screen_width = window.winfo_screenwidth()

screen_height = window.winfo_screenheight()

x = int((screen_width / 2) - (window_width / 2))

y = int((screen_height / 2) - (window_height / 2))

window.geometry(f"{window_width}x{window_height}+{x}+{y}")

# Controls

window.bind('<Left>', lambda event: change_direction('left'))

window.bind('<Right>', lambda event: change_direction('right'))

window.bind('<Up>', lambda event: change_direction('up'))

window.bind('<Down>', lambda event: change_direction('down'))

window.bind('r', restart_game)

# Start Game

snake = Snake()

food = Food()

next_turn(snake, food)

window.mainloop()

#Output