import pygame import time import random

Initialize Pygame

pygame.init()

Screen Dimensions

WIDTH, HEIGHT = 800, 600

Colors

WHITE = (255, 255, 255) BLACK = (0, 0, 0) RED = (213, 50, 80) GREEN = (0, 255, 0) BLUE = (50, 153, 213)

Game Variables

SNAKE_BLOCK = 20 SNAKE_SPEED = 15

Initialize screen

screen = pygame.display.set_mode((WIDTH, HEIGHT)) pygame.display.set_caption("Snake Game")

Clock

clock = pygame.time.Clock()

Font styles

font_style = pygame.font.SysFont("bahnschrift", 25) score_font = pygame.font.SysFont("comicsansms", 35)

Function to display the score

def your_score(score): value = score_font.render(f"Your Score: {score}", True, WHITE) screen.blit(value, [10, 10])

Function to draw the snake

def our_snake(snake_block, snake_list): for x in snake_list: pygame.draw.rect(screen, GREEN, [x[0], x[1], snake_block, snake_block])

Message to display when the game is over

def message(msg, color): mesg = font_style.render(msg, True, color) screen.blit(mesg, [WIDTH / 6, HEIGHT / 3])

Main Game Loop

def game_loop(): game_over = False game_close = False

x1 = WIDTH / 2
y1 = HEIGHT / 2

x1_change = 0
y1_change = 0

snake_list = []
length_of_snake = 1

# Food position
foodx = round(random.randrange(0, WIDTH - SNAKE_BLOCK) / 20.0) * 20.0
foody = round(random.randrange(0, HEIGHT - SNAKE_BLOCK) / 20.0) * 20.0

while not game_over:

    while game_close:
        screen.fill(BLUE)
        message("You Lost! Press Q-Quit or C-Play Again", RED)
        your_score(length_of_snake - 1)
        pygame.display.update()

        for event in pygame.event.get():
            if event.type == pygame.KEYDOWN:
                if event.key == pygame.K_q:
                    game_over = True
                    game_close = False
                if event.key == pygame.K_c:
                    game_loop()

    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            game_over = True
        if event.type == pygame.KEYDOWN:
            if event.key == pygame.K_LEFT:
                x1_change = -SNAKE_BLOCK
                y1_change = 0
            elif event.key == pygame.K_RIGHT:
                x1_change = SNAKE_BLOCK
                y1_change = 0
            elif event.key == pygame.K_UP:
                y1_change = -SNAKE_BLOCK
                x1_change = 0
            elif event.key == pygame.K_DOWN:
                y1_change = SNAKE_BLOCK
                x1_change = 0

    if x1 >= WIDTH or x1 < 0 or y1 >= HEIGHT or y1 < 0:
        game_close = True

    x1 += x1_change
    y1 += y1_change
    screen.fill(BLACK)

    pygame.draw.rect(screen, RED, [foodx, foody, SNAKE_BLOCK, SNAKE_BLOCK])
    snake_head = [x1, y1]
    snake_list.append(snake_head)

    if len(snake_list) > length_of_snake:
        del snake_list[0]

    for block in snake_list[:-1]:
        if block == snake_head:
            game_close = True

    our_snake(SNAKE_BLOCK, snake_list)
    your_score(length_of_snake - 1)

    pygame.display.update()

    if x1 == foodx and y1 == foody:
        foodx = round(random.randrange(0, WIDTH - SNAKE_BLOCK) / 20.0) * 20.0
        foody = round(random.randrange(0, HEIGHT - SNAKE_BLOCK) / 20.0) * 20.0
        length_of_snake += 1

    clock.tick(SNAKE_SPEED)

pygame.quit()
quit()

Run the game

game_loop()