用python设计小游戏源代码_用Python设计一个经典小游戏

好的，我可以帮你设计一个经典的贪吃蛇小游戏的源代码。以下是代码：

import pygame
import random

# 初始化游戏
pygame.init()

# 游戏界面大小
width = 640
height = 480
screen = pygame.display.set_mode((width, height))

# 设置游戏标题
pygame.display.set_caption("贪吃蛇小游戏")

# 设置游戏时钟
clock = pygame.time.Clock()

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

# 定义蛇的初始位置
snake_pos = [100, 50]
snake_body = [[100, 50], [90, 50], [80, 50]]

# 定义食物的初始位置
food_pos = [random.randrange(1, 64) * 10, random.randrange(1, 48) * 10]
food_spawned = 1

# 定义蛇的初始移动方向
direction = "RIGHT"
change_to = direction

# 定义游戏结束的函数
def game_over():
    font = pygame.font.SysFont('Arial', 30)
    text = font.render('游戏结束！', True, red)
    screen.blit(text, [width // 4, height // 3])
    pygame.display.flip()
    pygame.time.wait(2000)
    pygame.quit()
    quit()

# 开始游戏循环
while True:
    # 处理游戏事件
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            pygame.quit()
            quit()
        elif event.type == pygame.KEYDOWN:
            if event.key == pygame.K_RIGHT:
                change_to = "RIGHT"
            elif event.key == pygame.K_LEFT:
                change_to = "LEFT"
            elif event.key == pygame.K_UP:
                change_to = "UP"
            elif event.key == pygame.K_DOWN:
                change_to = "DOWN"
            elif event.key == pygame.K_ESCAPE:
                pygame.event.post(pygame.event.Event(pygame.QUIT))

    # 判断蛇是否撞到墙壁
    if snake_pos[0] > width or snake_pos[0] < 0 or snake_pos[1] > height or snake_pos[1] < 0:
        game_over()

    # 更新蛇的移动方向
    if change_to == "RIGHT" and direction != "LEFT":
        direction = "RIGHT"
    elif change_to == "LEFT" and direction != "RIGHT":
        direction = "LEFT"
    elif change_to == "UP" and direction != "DOWN":
        direction = "UP"
    elif change_to == "DOWN" and direction != "UP":
        direction = "DOWN"

    # 移动蛇的身体
    if direction == "RIGHT":
        snake_pos[0] += 10
    elif direction == "LEFT":
        snake_pos[0] -= 10
    elif direction == "UP":
        snake_pos[1] -= 10
    elif direction == "DOWN":
        snake_pos[1] += 10

    # 增加蛇的长度
    snake_body.insert(0, list(snake_pos))
    if snake_pos[0] == food_pos[0] and snake_pos[1] == food_pos[1]:
        food_spawned = 0
    else:
        snake_body.pop()

    # 生成新的食物
    if food_spawned == 0:
        food_pos = [random.randrange(1, 64) * 10, random.randrange(1, 48) * 10]
        food_spawned = 1

    # 更新游戏界面
    screen.fill(black)
    for pos in snake_body:
        pygame.draw.rect(screen, green, pygame.Rect(pos[0], pos[1], 10, 10))
    pygame.draw.rect(screen, white, pygame.Rect(food_pos[0], food_pos[1], 10, 10))

    # 刷新游戏界面
    pygame.display.update()

    # 控制游戏帧率
    clock.tick(15)

这个小游戏是用 pygame 模块实现的，通过键盘控制贪吃蛇的移动方向，吃到食物后蛇会变长，撞到墙壁或者自己的身体就会游戏结束。