python代码编写贪吃蛇小游戏

好的，以下是一个基于Python的贪吃蛇小游戏的代码示例：

import pygame
import random

# 设置游戏界面尺寸
SCREEN_WIDTH = 480
SCREEN_HEIGHT = 480

# 贪吃蛇身体大小
BLOCK_SIZE = 20

# 初始化pygame模块
pygame.init()

# 创建游戏界面对象
screen = pygame.display.set_mode((SCREEN_WIDTH, SCREEN_HEIGHT))

# 设置游戏标题
pygame.display.set_caption('贪吃蛇')

# 定义颜色对象
color_red = pygame.Color(255, 0, 0)
color_green = pygame.Color(0, 255, 0)
color_blue = pygame.Color(0, 0, 255)
color_white = pygame.Color(255, 255, 255)
color_black = pygame.Color(0, 0, 0)

# 定义游戏时钟对象
clock = pygame.time.Clock()

# 定义贪吃蛇初始位置和长度
snake_position = [100, 100]
snake_body = [[100, 100], [80, 100], [60, 100]]

# 定义食物初始位置
food_position = [random.randrange(1, (SCREEN_WIDTH//BLOCK_SIZE))*BLOCK_SIZE,
                 random.randrange(1, (SCREEN_HEIGHT//BLOCK_SIZE))*BLOCK_SIZE]

# 定义初始方向
direction = 'RIGHT'
change_direction = direction

# 画出贪吃蛇和食物
def draw_score(score):
    score_font = pygame.font.SysFont(None, 25)
    score_surface = score_font.render('Score: {0}'.format(score), True, color_white)
    screen.blit(score_surface, (10, 10))

def draw_snake(snake_body):
    for position in snake_body:
        pygame.draw.rect(screen, color_green, pygame.Rect(position[0], position[1], BLOCK_SIZE, BLOCK_SIZE))

def draw_food(food_position):
    pygame.draw.rect(screen, color_red, pygame.Rect(food_position[0], food_position[1], BLOCK_SIZE, BLOCK_SIZE))

# 游戏主循环
score = 0

while True:
    # 处理游戏事件
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            pygame.quit()
            exit(0)
        elif event.type == pygame.KEYDOWN:
            if event.key == pygame.K_RIGHT:
                change_direction = 'RIGHT'
            elif event.key == pygame.K_LEFT:
                change_direction = 'LEFT'
            elif event.key == pygame.K_UP:
                change_direction = 'UP'
            elif event.key == pygame.K_DOWN:
                change_direction = 'DOWN'
            elif event.key == pygame.K_ESCAPE:
                pygame.event.post(pygame.event.Event(pygame.QUIT))

    # 判断是否更改方向
    if change_direction == 'RIGHT' and direction != 'LEFT':
        direction = 'RIGHT'
    elif change_direction == 'LEFT' and direction != 'RIGHT':
        direction = 'LEFT'
    elif change_direction == 'UP' and direction != 'DOWN':
        direction = 'UP'
    elif change_direction == 'DOWN' and direction != 'UP':
        direction = 'DOWN'

    # 移动贪吃蛇的身体
    if direction == 'RIGHT':
        snake_position[0] += BLOCK_SIZE
    elif direction == 'LEFT':
        snake_position[0] -= BLOCK_SIZE
    elif direction == 'UP':
        snake_position[1] -= BLOCK_SIZE
    elif direction == 'DOWN':
        snake_position[1] += BLOCK_SIZE

    # 判断贪吃蛇是否吃到食物
    if snake_position == food_position:
        food_position = [random.randrange(1, (SCREEN_WIDTH//BLOCK_SIZE))*BLOCK_SIZE,
                         random.randrange(1, (SCREEN_HEIGHT//BLOCK_SIZE))*BLOCK_SIZE]
        score += 10
    else:
        snake_body.pop()

    # 更新贪吃蛇身体的位置
    snake_body.insert(0, list(snake_position))

    # 绘制游戏界面
    screen.fill(color_black)
    draw_score(score)
    draw_snake(snake_body)
    draw_food(food_position)
    pygame.display.update()

    # 判断游戏是否结束
    if snake_position[0] < 0 or snake_position[0] > SCREEN_WIDTH-BLOCK_SIZE or \
            snake_position[1] < 0 or snake_position[1] > SCREEN_HEIGHT-BLOCK_SIZE:
        pygame.quit()
        exit(0)
    for block in snake_body[1:]:
        if snake_position == block:
            pygame.quit()
            exit(0)

    # 设置游戏帧数并更新
    clock.tick(15)

希望能帮到您！ 如需更详细的说明，请与我交流。