Snake

import pygame
import random
import time

# Initialize pygame
pygame.init()

# Set up display
WIDTH, HEIGHT = 600, 400
win = pygame.display.set_mode((WIDTH, HEIGHT))
pygame.display.set_caption("Snake Game")

# Define colors
BLACK = (0, 0, 0)
WHITE = (255, 255, 255)
GREEN = (0, 255, 0)
RED = (255, 0, 0)

# Set up game clock
clock = pygame.time.Clock()
SNAKE_SPEED = 15

# Define snake and food settings
snake_block = 10
snake_speed = 15

# Font settings
font_style = pygame.font.SysFont(None, 50)

def display_score(score):
    value = font_style.render("Score: " + str(score), True, WHITE)
    win.blit(value, [0, 0])

def game_over_message():
    game_over_text = font_style.render("Game Over!", True, RED)
    win.blit(game_over_text, [WIDTH // 4, HEIGHT // 4])
    pygame.display.update()
    time.sleep(2)

def game_loop():
    game_over = False
    game_close = False

    # Initial position and movement of the snake
    x, y = WIDTH // 2, HEIGHT // 2
    x_change, y_change = 0, 0

    snake_list = []
    snake_length = 1

    # Generate initial food position
    food_x = round(random.randrange(0, WIDTH - snake_block) / 10.0) * 10.0
    food_y = round(random.randrange(0, HEIGHT - snake_block) / 10.0) * 10.0

    while not game_over:
        while game_close:
            win.fill(BLACK)
            game_over_message()
            display_score(snake_length - 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
                    elif event.key == pygame.K_c:
                        game_loop()

        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                game_over = True
            elif event.type == pygame.KEYDOWN:
                if event.key == pygame.K_LEFT and x_change == 0:
                    x_change = -snake_block
                    y_change = 0
                elif event.key == pygame.K_RIGHT and x_change == 0:
                    x_change = snake_block
                    y_change = 0
                elif event.key == pygame.K_UP and y_change == 0:
                    y_change = -snake_block
                    x_change = 0
                elif event.key == pygame.K_DOWN and y_change == 0:
                    y_change = snake_block
                    x_change = 0

        # Update snake's position
        x += x_change
        y += y_change

        # Check for boundary collision
        if x >= WIDTH or x < 0 or y >= HEIGHT or y < 0:
            game_close = True

        win.fill(BLACK)
        pygame.draw.rect(win, GREEN, [food_x, food_y, snake_block, snake_block])

        snake_head = [x, y]
        snake_list.append(snake_head)
        if len(snake_list) > snake_length:
            del snake_list[0]

        # Check for collision with itself
        for block in snake_list[:-1]:
            if block == snake_head:
                game_close = True

        # Draw snake
        for block in snake_list:
            pygame.draw.rect(win, WHITE, [block[0], block[1], snake_block, snake_block])

        display_score(snake_length - 1)

        pygame.display.update()

        # Check for collision with food
        if x == food_x and y == food_y:
            food_x = round(random.randrange(0, WIDTH - snake_block) / 10.0) * 10.0
            food_y = round(random.randrange(0, HEIGHT - snake_block) / 10.0) * 10.0
            snake_length += 1

        clock.tick(snake_speed)

    pygame.quit()
    quit()

game_loop()