Python 贪吃蛇游戏代码示例 - 初学者入门

由于贪吃蛇游戏涉及到游戏界面、操作逻辑、碰撞检测等多个方面，需要较为复杂的代码实现，以下是一个简单的贪吃蛇游戏示例：

import pygame
import random

# 初始化pygame
pygame.init()

# 设置游戏窗口大小
window_width = 480
window_height = 480
window = pygame.display.set_mode((window_width, window_height))
pygame.display.set_caption('贪吃蛇')

# 定义颜色
white = (255, 255, 255)
black = (0, 0, 0)
red = (255, 0, 0)

# 定义贪吃蛇初始位置和大小
snake_x = 100
snake_y = 100
snake_size = 20

# 定义贪吃蛇移动速度和方向
snake_speed = 20
snake_direction = 'right'

# 定义食物初始位置和大小
food_x = random.randint(0, window_width - snake_size)
food_y = random.randint(0, window_height - snake_size)
food_size = 20

# 初始化分数
score = 0

# 设置游戏循环标志
game_running = True

# 游戏循环
while game_running:
    # 处理游戏事件
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            game_running = False
        elif event.type == pygame.KEYDOWN:
            if event.key == pygame.K_UP and snake_direction != 'down':
                snake_direction = 'up'
            elif event.key == pygame.K_DOWN and snake_direction != 'up':
                snake_direction = 'down'
            elif event.key == pygame.K_LEFT and snake_direction != 'right':
                snake_direction = 'left'
            elif event.key == pygame.K_RIGHT and snake_direction != 'left':
                snake_direction = 'right'

    # 移动贪吃蛇
    if snake_direction == 'up':
        snake_y -= snake_speed
    elif snake_direction == 'down':
        snake_y += snake_speed
    elif snake_direction == 'left':
        snake_x -= snake_speed
    elif snake_direction == 'right':
        snake_x += snake_speed

    # 绘制游戏界面
    window.fill(white)
    pygame.draw.rect(window, black, [snake_x, snake_y, snake_size, snake_size])
    pygame.draw.rect(window, red, [food_x, food_y, food_size, food_size])
    pygame.display.update()

    # 碰撞检测
    if snake_x < 0 or snake_x > window_width - snake_size or snake_y < 0 or snake_y > window_height - snake_size:
        game_running = False
    if snake_x == food_x and snake_y == food_y:
        food_x = random.randint(0, window_width - snake_size)
        food_y = random.randint(0, window_height - snake_size)
        score += 1
        snake_size += 10

    # 设置游戏帧率
    pygame.time.Clock().tick(10)

# 游戏结束
pygame.quit()
print('游戏结束，得分为：' + str(score))

以上代码实现了一个简单的贪吃蛇游戏，包含了游戏界面的绘制、操作逻辑的处理、碰撞检测等功能。在游戏中，玩家通过控制贪吃蛇的移动方向，尽可能地吃掉食物并避免与墙壁或自身相撞。游戏结束时，会显示玩家的得分。