python编程游戏代码贪吃蛇

Python编程语言是一种广泛应用于各个领域的高级编程语言，它的简洁和易读性使得许多人选择使用Python进行编程。在Python中，有许多有趣的编程项目，其中贪吃蛇游戏是一个非常经典的项目。贪吃蛇游戏不仅可以帮助初学者熟悉Python语法和编程逻辑，还可以提高编程技能和逻辑思维能力。

在贪吃蛇游戏中，玩家通过控制一条蛇在屏幕上移动，吃掉食物并避免撞到墙壁或自己的身体。游戏的难度随着吃到的食物数量增加而增加，挑战玩家的反应速度和操作技巧。

下面是一个简单的Python贪吃蛇游戏示例代码：

import pygame
import random

pygame.init()

width = 800
height = 600

screen = pygame.display.set_mode((width, height))
pygame.display.set_caption('Snake Game')

snake_pos = [100, 50]
snake_body = [[100, 50], [90, 50], [80, 50]]
food_pos = [random.randrange(1, width//10) * 10, random.randrange(1, height//10) * 10]
food_spawn = True

direction = 'RIGHT'
change_to = direction

score = 0

clock = pygame.time.Clock()

def game_over():
    font = pygame.font.SysFont('Arial', 30)
    text = font.render('Your score is: ' + str(score), True, (255, 255, 255))
    screen.blit(text, [width//2 - 100, height//2])
    pygame.display.flip()
    pygame.time.wait(2000)
    pygame.quit()

def show_score(choice=1):
    font = pygame.font.SysFont('Arial', 30)
    text = font.render('Score: ' + str(score), True, (255, 255, 255))
    screen.blit(text, [0, 0])

def draw_snake(snake_body):
    for pos in snake_body:
        pygame.draw.rect(screen, (0, 255, 0), pygame.Rect(pos[0], pos[1], 10, 10))

def draw_food(food_pos):
    pygame.draw.rect(screen, (255, 0, 0), pygame.Rect(food_pos[0], food_pos[1], 10, 10))

while True:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            pygame.quit()

        keys = pygame.key.get_pressed()

        for key in keys:
            if keys[pygame.K_UP]:
                change_to = 'UP'
            if keys[pygame.K_DOWN]:
                change_to = 'DOWN'
            if keys[pygame.K_LEFT]:
                change_to = 'LEFT'
            if keys[pygame.K_RIGHT]:
                change_to = 'RIGHT'

    if change_to == 'UP' and direction != 'DOWN':
        direction = 'UP'
    if change_to == 'DOWN' and direction != 'UP':
        direction = 'DOWN'
    if change_to == 'LEFT' and direction != 'RIGHT':
        direction = 'LEFT'
    if change_to == 'RIGHT' and direction != 'LEFT':
        direction = 'RIGHT'

    if direction == 'UP':
        snake_pos[1] -= 10
    if direction == 'DOWN':
        snake_pos[1] += 10
    if direction == 'LEFT':
        snake_pos[0] -= 10
    if direction == 'RIGHT':
        snake_pos[0] += 10

    snake_body.insert(0, list(snake_pos))

    if snake_pos[0] == food_pos[0] and snake_pos[1] == food_pos[1]:
        score += 1
        food_spawn = False
    else:
        snake_body.pop()

    if not food_spawn:
        food_pos = [random.randrange(1, width//10) * 10, random.randrange(1, height//10) * 10]
    
    food_spawn = True
    screen.fill((0, 0, 0))
    draw_snake(snake_body)
    draw_food(food_pos)
    show_score()

    if snake_pos[0] < 0 or snake_pos[0] > width-10:
        game_over()
    if snake_pos[1] < 0 or snake_pos[1] > height-10:
        game_over()

    for block in snake_body[1:]:
        if snake_pos[0] == block[0] and snake_pos[1] == block[1]:
            game_over()

    pygame.display.update()
    clock.tick(15)

通过以上代码，我们可以创建一个简单