This is a python snake game

 This is a python snake game 

from tkinter import *

import random

GAME_WIDTH = 1000

GAME_HEIGHT = 700

SPEED = 80

SPACE_SIZE = 50

BODY_PARTS = 3

SNAKE_COLOR = "#0000FF"

FOOD_COLOR = "#FFFF00"

BACKGROUND_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, (GAME_WIDTH / SPACE_SIZE) - 1) * SPACE_SIZE

        y = random.randint(0, (GAME_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_collision(snake):

        game_over()

    else:

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

def change_directions(new_direction):

    global direction

    if new_direction == 'left':

        if direction != 'right':

            direction = new_direction

    elif new_direction == 'right':

        if direction != 'left':

            direction = new_direction

    elif new_direction == 'up':

        if direction != 'down':

            direction = new_direction

    elif new_direction == 'down':

        if direction != 'up':

            direction = new_direction

def check_collision(snake):

    x, y = snake.coordinates[0]

    if x < 0 or x >= GAME_WIDTH:

        return True

    elif y < 0 or y >= GAME_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(ALL)

    canvas.create_text(canvas.winfo_width()/2, canvas.winfo_height()/2,

                       font=("consolas",70),text="GAME OVER",fill="red", tags="gameover")

window = Tk()

window.title('snake game')

window.resizable(False, False)

score = 0

direction = 'down'

label = Label(window,text="SCORE:{}".format(score),font=("consolas",40))

label.pack()

canvas = Canvas(window,bg=BACKGROUND_COLOR,height=GAME_HEIGHT,width=GAME_WIDTH)

canvas.pack()

window.update()

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}")

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

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

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

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

snake = Snake()

food = Food()

next_turn(snake, food)

window.mainloop()

github link

python snake game